ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (445)
  • Cells, Cultured  (220)
  • Kinetics  (144)
  • Genes
  • American Association for the Advancement of Science (AAAS)  (445)
  • Annual Reviews
  • 2015-2019  (27)
  • 1980-1984  (418)
  • 1955-1959
  • 1930-1934
Collection
  • Articles  (445)
Keywords
Years
Year
  • 1
    Publication Date: 2015-04-11
    Description: Protein phosphorylation regulates virtually all biological processes. Although protein kinases are popular drug targets, targeting protein phosphatases remains a challenge. Here, we describe Sephin1 (selective inhibitor of a holophosphatase), a small molecule that safely and selectively inhibited a regulatory subunit of protein phosphatase 1 in vivo. Sephin1 selectively bound and inhibited the stress-induced PPP1R15A, but not the related and constitutive PPP1R15B, to prolong the benefit of an adaptive phospho-signaling pathway, protecting cells from otherwise lethal protein misfolding stress. In vivo, Sephin1 safely prevented the motor, morphological, and molecular defects of two otherwise unrelated protein-misfolding diseases in mice, Charcot-Marie-Tooth 1B, and amyotrophic lateral sclerosis. Thus, regulatory subunits of phosphatases are drug targets, a property exploited here to safely prevent two protein misfolding diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4490275/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4490275/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Das, Indrajit -- Krzyzosiak, Agnieszka -- Schneider, Kim -- Wrabetz, Lawrence -- D'Antonio, Maurizio -- Barry, Nicholas -- Sigurdardottir, Anna -- Bertolotti, Anne -- 309516/European Research Council/International -- MC_U105185860/Medical Research Council/United Kingdom -- R01-NS55256/NS/NINDS NIH HHS/ -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Apr 10;348(6231):239-42. doi: 10.1126/science.aaa4484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK. ; Division of Genetics and Cell Biology, San Raffaele Scientific Institute, 20132 Milan, Italy. ; Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge, CB2 0QH, UK. aberto@mrc-lmb.cam.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25859045" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/drug therapy/metabolism/pathology ; Animals ; Cells, Cultured ; Charcot-Marie-Tooth Disease/drug therapy/metabolism/pathology ; Disease Models, Animal ; Endoplasmic Reticulum Stress/drug effects ; Enzyme Inhibitors/metabolism/pharmacokinetics/*pharmacology/toxicity ; Guanabenz/*analogs & derivatives/chemical ; synthesis/metabolism/pharmacology/toxicity ; HeLa Cells ; Humans ; Mice ; Mice, Transgenic ; Molecular Targeted Therapy ; Phosphorylation ; Protein Folding ; Protein Phosphatase 1/*antagonists & inhibitors ; Proteostasis Deficiencies/*drug therapy/*prevention & control ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2015-06-20
    Description: The inactive X chromosome (Xi) serves as a model to understand gene silencing on a global scale. Here, we perform "identification of direct RNA interacting proteins" (iDRiP) to isolate a comprehensive protein interactome for Xist, an RNA required for Xi silencing. We discover multiple classes of interactors-including cohesins, condensins, topoisomerases, RNA helicases, chromatin remodelers, and modifiers-that synergistically repress Xi transcription. Inhibiting two or three interactors destabilizes silencing. Although Xist attracts some interactors, it repels architectural factors. Xist evicts cohesins from the Xi and directs an Xi-specific chromosome conformation. Upon deleting Xist, the Xi acquires the cohesin-binding and chromosomal architecture of the active X. Our study unveils many layers of Xi repression and demonstrates a central role for RNA in the topological organization of mammalian chromosomes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Minajigi, Anand -- Froberg, John E -- Wei, Chunyao -- Sunwoo, Hongjae -- Kesner, Barry -- Colognori, David -- Lessing, Derek -- Payer, Bernhard -- Boukhali, Myriam -- Haas, Wilhelm -- Lee, Jeannie T -- R01-DA-38695/DA/NIDA NIH HHS/ -- R03-MH97478/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2015 Jul 17;349(6245). pii: aab2276. doi: 10.1126/science.aab2276. Epub 2015 Jun 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA. ; Massachusetts General Hospital Cancer Center, Charlestown, Boston, MA; Department of Medicine, Harvard Medical School, Boston, MA, USA. ; Howard Hughes Medical Institute; Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA; Department of Genetics, Harvard Medical School, Boston, MA, USA. lee@molbio.mgh.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26089354" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/metabolism ; Animals ; Cell Cycle Proteins/*metabolism ; Cells, Cultured ; Chromatin Assembly and Disassembly ; Chromosomal Proteins, Non-Histone/*metabolism ; DNA-Binding Proteins/metabolism ; Embryonic Stem Cells/metabolism ; Fibroblasts/metabolism ; Gene Knockdown Techniques ; Gene Silencing ; Mice ; Multiprotein Complexes/metabolism ; Nucleic Acid Conformation ; Proteomics ; RNA Helicases/metabolism ; RNA, Long Noncoding/*metabolism ; X Chromosome/chemistry/genetics/*metabolism ; *X Chromosome Inactivation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2015-01-24
    Description: Resolving the molecular details of proteome variation in the different tissues and organs of the human body will greatly increase our knowledge of human biology and disease. Here, we present a map of the human tissue proteome based on an integrated omics approach that involves quantitative transcriptomics at the tissue and organ level, combined with tissue microarray-based immunohistochemistry, to achieve spatial localization of proteins down to the single-cell level. Our tissue-based analysis detected more than 90% of the putative protein-coding genes. We used this approach to explore the human secretome, the membrane proteome, the druggable proteome, the cancer proteome, and the metabolic functions in 32 different tissues and organs. All the data are integrated in an interactive Web-based database that allows exploration of individual proteins, as well as navigation of global expression patterns, in all major tissues and organs in the human body.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Uhlen, Mathias -- Fagerberg, Linn -- Hallstrom, Bjorn M -- Lindskog, Cecilia -- Oksvold, Per -- Mardinoglu, Adil -- Sivertsson, Asa -- Kampf, Caroline -- Sjostedt, Evelina -- Asplund, Anna -- Olsson, IngMarie -- Edlund, Karolina -- Lundberg, Emma -- Navani, Sanjay -- Szigyarto, Cristina Al-Khalili -- Odeberg, Jacob -- Djureinovic, Dijana -- Takanen, Jenny Ottosson -- Hober, Sophia -- Alm, Tove -- Edqvist, Per-Henrik -- Berling, Holger -- Tegel, Hanna -- Mulder, Jan -- Rockberg, Johan -- Nilsson, Peter -- Schwenk, Jochen M -- Hamsten, Marica -- von Feilitzen, Kalle -- Forsberg, Mattias -- Persson, Lukas -- Johansson, Fredric -- Zwahlen, Martin -- von Heijne, Gunnar -- Nielsen, Jens -- Ponten, Fredrik -- New York, N.Y. -- Science. 2015 Jan 23;347(6220):1260419. doi: 10.1126/science.1260419.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2970 Horsholm, Denmark. mathias.uhlen@scilifelab.se. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. ; Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden. ; Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden. ; Science for Life Laboratory, KTH-Royal Institute of Technology, SE-171 21 Stockholm, Sweden. Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, SE-751 85 Uppsala, Sweden. ; Leibniz Research Centre for Working Environment and Human Factors (IfADo) at Dortmund TU, D-44139 Dortmund, Germany. ; Lab Surgpath, Mumbai, India. ; Department of Proteomics, KTH-Royal Institute of Technology, SE-106 91 Stockholm, Sweden. ; Science for Life Laboratory, Department of Neuroscience, Karolinska Institute, SE-171 77 Stockholm, Sweden. ; Center for Biomembrane Research, Department of Biochemistry and Biophysics, Stockholm University, Stockholm, Sweden. ; Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, DK-2970 Horsholm, Denmark. Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25613900" target="_blank"〉PubMed〈/a〉
    Keywords: Alternative Splicing ; Cell Line ; *Databases, Protein ; Female ; Genes ; Genetic Code ; Humans ; Internet ; Male ; Membrane Proteins/genetics/metabolism ; Mitochondrial Proteins/genetics/metabolism ; Neoplasms/genetics/metabolism ; Protein Array Analysis ; Protein Isoforms/genetics/metabolism ; Proteome/genetics/*metabolism ; Tissue Distribution ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2015-10-17
    Description: Research in the genetics of neurodevelopmental disorders such as autism suggests that several hundred genes are likely risk factors for these disorders. This heterogeneity presents a challenge and an opportunity at the same time. Although the exact identity of many of the genes remains to be discovered, genes identified to date encode proteins that play roles in certain conserved pathways: protein synthesis, transcriptional and epigenetic regulation, and synaptic signaling. The next generation of research in neurodevelopmental disorders must address the neural circuitry underlying the behavioral symptoms and comorbidities, the cell types playing critical roles in these circuits, and common intercellular signaling pathways that link diverse genes. Results from clinical trials have been mixed so far. Only when we can leverage the heterogeneity of neurodevelopmental disorders into precision medicine will the mechanism-based therapeutics for these disorders start to unlock success.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4739545/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4739545/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sahin, Mustafa -- Sur, Mriganka -- EF1451125/PHS HHS/ -- EY007023/EY/NEI NIH HHS/ -- MH085802/MH/NIMH NIH HHS/ -- NS090473/NS/NINDS NIH HHS/ -- P20 NS080199/NS/NINDS NIH HHS/ -- P30 HD018655/HD/NICHD NIH HHS/ -- U01 NS082320/NS/NINDS NIH HHS/ -- U54 NS092090/NS/NINDS NIH HHS/ -- U54NS092090/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2015 Nov 20;350(6263). pii: aab3897. doi: 10.1126/science.aab3897. Epub 2015 Oct 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉F. M. Kirby Center for Neurobiology, Translational Neuroscience Center, Department of Neurology, Boston Children's Hospital, Boston, MA 02115, USA. mustafa.sahin@childrens.harvard.edu msur@mit.edu. ; Simons Center for the Social Brain, Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. mustafa.sahin@childrens.harvard.edu msur@mit.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26472761" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/drug therapy/genetics ; Behavior ; Brain/growth & development/metabolism ; Chromatin Assembly and Disassembly ; Clinical Trials as Topic ; Epigenesis, Genetic ; Genes ; *Genetic Predisposition to Disease ; Humans ; Metabolic Networks and Pathways/genetics ; Mice ; Mutation ; Neural Pathways/metabolism ; Neurodevelopmental Disorders/*drug therapy/*genetics ; Precision Medicine/*methods ; Protein Biosynthesis/genetics ; Transcription, Genetic ; Translational Medical Research
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2015-05-09
    Description: Efforts to identify host determinants for malaria have been hindered by the absence of a nucleus in erythrocytes, which precludes genetic manipulation in the cell in which the parasite replicates. We used cultured red blood cells derived from hematopoietic stem cells to carry out a forward genetic screen for Plasmodium falciparum host determinants. We found that CD55 is an essential host factor for P. falciparum invasion. CD55-null erythrocytes were refractory to invasion by all isolates of P. falciparum because parasites failed to attach properly to the erythrocyte surface. Thus, CD55 is an attractive target for the development of malaria therapeutics. Hematopoietic stem cell-based forward genetic screens may be valuable for the identification of additional host determinants of malaria pathogenesis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465434/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465434/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Egan, Elizabeth S -- Jiang, Rays H Y -- Moechtar, Mischka A -- Barteneva, Natasha S -- Weekes, Michael P -- Nobre, Luis V -- Gygi, Steven P -- Paulo, Joao A -- Frantzreb, Charles -- Tani, Yoshihiko -- Takahashi, Junko -- Watanabe, Seishi -- Goldberg, Jonathan -- Paul, Aditya S -- Brugnara, Carlo -- Root, David E -- Wiegand, Roger C -- Doench, John G -- Duraisingh, Manoj T -- 100140/Wellcome Trust/United Kingdom -- 1K08AI103034-01A1/AI/NIAID NIH HHS/ -- K01 DK098285/DK/NIDDK NIH HHS/ -- K01DK098285/DK/NIDDK NIH HHS/ -- K08 AI103034/AI/NIAID NIH HHS/ -- K12-HD000850/HD/NICHD NIH HHS/ -- R01AI091787/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2015 May 8;348(6235):711-4. doi: 10.1126/science.aaa3526.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. Division of Infectious Diseases, Boston Children's Hospital, Boston, MA, USA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. Department of Global Health and Center for Drug Discovery and Innovation, University of South Florida, Tampa, FL, USA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. ; Department of Pediatrics, Harvard Medical School and Program in Cellular and Molecular Medicine, Boston Children's Hospital, Boston, MA, USA. ; Cambridge Institute for Medical Research, University of Cambridge, Cambridge, UK. ; Department of Cell Biology, Harvard Medical School, Boston, MA, USA. ; Japanese Red Cross Kinki Block Blood Center, Osaka, Japan. ; Japanese Red Cross Kyushu Block Blood Center, Fukuoka, Japan. ; Department of Laboratory Medicine, Boston Children's Hospital and Harvard Medical School, Boston, MA, USA. ; The Broad Institute of Harvard and Massachussetts Insititute of Technology, Cambridge, MA, USAA. ; Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston, MA, USA. The Broad Institute of Harvard and Massachussetts Insititute of Technology, Cambridge, MA, USAA. mduraisi@hsph.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25954012" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, CD44/genetics ; Antigens, CD55/*genetics ; Cell Differentiation/genetics ; Cells, Cultured ; Erythrocytes/cytology/metabolism/*parasitology ; Genetic Testing ; Hematopoietic Stem Cells/cytology ; Host-Parasite Interactions/*genetics ; Humans ; Malaria, Falciparum/*genetics/*parasitology ; Plasmodium falciparum/*pathogenicity ; RNA, Small Interfering/genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2015-09-01
    Description: Human mutations that truncate the massive sarcomere protein titin [TTN-truncating variants (TTNtvs)] are the most common genetic cause for dilated cardiomyopathy (DCM), a major cause of heart failure and premature death. Here we show that cardiac microtissues engineered from human induced pluripotent stem (iPS) cells are a powerful system for evaluating the pathogenicity of titin gene variants. We found that certain missense mutations, like TTNtvs, diminish contractile performance and are pathogenic. By combining functional analyses with RNA sequencing, we explain why truncations in the A-band domain of TTN cause DCM, whereas truncations in the I band are better tolerated. Finally, we demonstrate that mutant titin protein in iPS cell-derived cardiomyocytes results in sarcomere insufficiency, impaired responses to mechanical and beta-adrenergic stress, and attenuated growth factor and cell signaling activation. Our findings indicate that titin mutations cause DCM by disrupting critical linkages between sarcomerogenesis and adaptive remodeling.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618316/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618316/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hinson, John T -- Chopra, Anant -- Nafissi, Navid -- Polacheck, William J -- Benson, Craig C -- Swist, Sandra -- Gorham, Joshua -- Yang, Luhan -- Schafer, Sebastian -- Sheng, Calvin C -- Haghighi, Alireza -- Homsy, Jason -- Hubner, Norbert -- Church, George -- Cook, Stuart A -- Linke, Wolfgang A -- Chen, Christopher S -- Seidman, J G -- Seidman, Christine E -- EB017103/EB/NIBIB NIH HHS/ -- HG005550/HG/NHGRI NIH HHS/ -- HL007374/HL/NHLBI NIH HHS/ -- HL115553/HL/NHLBI NIH HHS/ -- HL125807/HL/NHLBI NIH HHS/ -- K08 HL125807/HL/NHLBI NIH HHS/ -- T32 HL007208/HL/NHLBI NIH HHS/ -- Department of Health/United Kingdom -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):982-6. doi: 10.1126/science.aaa5458.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA. jthinson@partners.org cseidman@genetics.med.harvard.edu. ; Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA. The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA. ; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Division of Cardiovascular Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. ; Department of Cardiovascular Physiology, Ruhr University Bochum, MA 3/56 D-44780, Bochum, Germany. ; The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA 02115, USA. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Cardiovascular and Metabolic Sciences, Max Delbruck Center for Molecular Medicine, Berlin, Germany. ; Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. ; Cardiovascular and Metabolic Sciences, Max Delbruck Center for Molecular Medicine, Berlin, Germany. DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany. ; National Institute for Health Research (NIHR) Biomedical Research Unit in Cardiovascular Disease at Royal Brompton and Harefield National Health Service (NHS) Foundation Trust, Imperial College London, London, UK. National Heart Centre and Duke-National University, Singapore, Singapore. ; Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA. Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA. jthinson@partners.org cseidman@genetics.med.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315439" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic beta-Agonists/pharmacology ; Cardiomyopathy, Dilated/*genetics/pathology/*physiopathology ; Cells, Cultured ; Connectin/chemistry/*genetics/*physiology ; Heart Rate ; Humans ; Induced Pluripotent Stem Cells/*physiology ; Isoproterenol/pharmacology ; Mutant Proteins/chemistry/physiology ; *Mutation, Missense ; Myocardial Contraction ; Myocytes, Cardiac/*physiology ; RNA/genetics/metabolism ; Sarcomeres/*physiology/ultrastructure ; Sequence Analysis, RNA ; Signal Transduction ; Stress, Physiological
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2015-06-06
    Description: Aneuploidy in human eggs is the leading cause of pregnancy loss and several genetic disorders such as Down syndrome. Most aneuploidy results from chromosome segregation errors during the meiotic divisions of an oocyte, the egg's progenitor cell. The basis for particularly error-prone chromosome segregation in human oocytes is not known. We analyzed meiosis in more than 100 live human oocytes and identified an error-prone chromosome-mediated spindle assembly mechanism as a major contributor to chromosome segregation defects. Human oocytes assembled a meiotic spindle independently of either centrosomes or other microtubule organizing centers. Instead, spindle assembly was mediated by chromosomes and the small guanosine triphosphatase Ran in a process requiring ~16 hours. This unusually long spindle assembly period was marked by intrinsic spindle instability and abnormal kinetochore-microtubule attachments, which favor chromosome segregation errors and provide a possible explanation for high rates of aneuploidy in human eggs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477045/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4477045/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Holubcova, Zuzana -- Blayney, Martyn -- Elder, Kay -- Schuh, Melina -- MC_U105192711/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Jun 5;348(6239):1143-7. doi: 10.1126/science.aaa9529.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Medical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK. ; Bourn Hall Clinic, Bourn, Cambridge CB23 2TN, UK. ; Medical Research Council, Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK. mschuh@mrc-lmb.cam.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26045437" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase ; *Aneuploidy ; Animals ; Cells, Cultured ; *Chromosome Segregation ; Female ; Green Fluorescent Proteins/genetics/metabolism ; Humans ; Kinetochores/metabolism ; *Meiosis ; Mice ; Microtubule-Associated Proteins/genetics/metabolism ; Microtubule-Organizing Center/metabolism ; Oocytes/*pathology ; Spindle Apparatus/*metabolism ; ran GTP-Binding Protein/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 2015-09-05
    Description: Growing up on a dairy farm protects children from allergy, hay fever, and asthma. A mechanism linking exposure to this endotoxin (bacterial lipopolysaccharide)-rich environment with protection has remained elusive. Here we show that chronic exposure to low-dose endotoxin or farm dust protects mice from developing house dust mite (HDM)-induced asthma. Endotoxin reduced epithelial cell cytokines that activate dendritic cells (DCs), thus suppressing type 2 immunity to HDMs. Loss of the ubiquitin-modifying enzyme A20 in lung epithelium abolished the protective effect. A single-nucleotide polymorphism in the gene encoding A20 was associated with allergy and asthma risk in children growing up on farms. Thus, the farming environment protects from allergy by modifying the communication between barrier epithelial cells and DCs through A20 induction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schuijs, Martijn J -- Willart, Monique A -- Vergote, Karl -- Gras, Delphine -- Deswarte, Kim -- Ege, Markus J -- Madeira, Filipe Branco -- Beyaert, Rudi -- van Loo, Geert -- Bracher, Franz -- von Mutius, Erika -- Chanez, Pascal -- Lambrecht, Bart N -- Hammad, Hamida -- New York, N.Y. -- Science. 2015 Sep 4;349(6252):1106-10. doi: 10.1126/science.aac6623.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. ; Department of Respiratory Medicine, Assistance Publique Hopitaux de Marseille, UMR INSERM U1067 CNRS 7333, Aix Marseille University, Marseille, France. ; Dr. von Hauner Children's Hospital, Ludwig-Maximilians-Universitat, Munich, Germany. ; Unit of Molecular Signal Transduction, VIB Inflammation Research Center, Ghent, Belgium. Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium. ; Center for Drug Research, Department of Pharmacy, Ludwig Maximilians University, Butenandtstrasse 5-13, D-81377 Munich, Germany. ; Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. Department of Pulmonary Medicine, Erasmus Medical Center, Rotterdam, Netherlands. hamida.hammad@ugent.be bart.lambrecht@ugent.be. ; Laboratory of Immunoregulation, VIB Inflammation Research Center, Ghent, Belgium. Department of Internal Medicine, Ghent University, Ghent, Belgium. hamida.hammad@ugent.be bart.lambrecht@ugent.be.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26339029" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Asthma/immunology/prevention & control ; Cells, Cultured ; Child ; DNA-Binding Proteins/*biosynthesis ; Dairying ; Dendritic Cells/immunology ; Dust/*immunology ; Female ; Humans ; Hygiene Hypothesis ; Hypersensitivity/enzymology/immunology/*prevention & control ; Inhalation Exposure ; Intracellular Signaling Peptides and Proteins/*biosynthesis ; Lipopolysaccharides/*immunology ; Lung/*enzymology/immunology ; Mice ; Mice, Inbred C57BL ; Nuclear Proteins/*biosynthesis ; Pyroglyphidae/*immunology ; Respiratory Mucosa/*enzymology/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 2015-09-01
    Description: Cycloadditions, such as the [4+2] Diels-Alder reaction to form six-membered rings, are among the most powerful and widely used methods in synthetic chemistry. The analogous [2+2] alkene cycloaddition to synthesize cyclobutanes is kinetically accessible by photochemical methods, but the substrate scope and functional group tolerance are limited. Here, we report iron-catalyzed intermolecular [2+2] cycloaddition of unactivated alkenes and cross cycloaddition of alkenes and dienes as regio- and stereoselective routes to cyclobutanes. Through rational ligand design, development of this base metal-catalyzed method expands the chemical space accessible from abundant hydrocarbon feedstocks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hoyt, Jordan M -- Schmidt, Valerie A -- Tondreau, Aaron M -- Chirik, Paul J -- F32 GM109594/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 28;349(6251):960-3. doi: 10.1126/science.aac7440.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Princeton University, Princeton, NJ 08544, USA. ; Department of Chemistry, Princeton University, Princeton, NJ 08544, USA. pchirik@princeton.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26315433" target="_blank"〉PubMed〈/a〉
    Keywords: Alkenes/*chemistry ; Catalysis ; Cycloaddition Reaction ; Cyclobutanes/*chemical synthesis/*chemistry ; Dimerization ; Iron/*chemistry ; Kinetics ; Ligands ; Molecular Structure ; Stereoisomerism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 2015-03-21
    Description: Base-pairing interactions between nucleic acids mediate target recognition in many biological processes. We developed a super-resolution imaging and modeling platform that enabled the in vivo determination of base pairing-mediated target recognition kinetics. We examined a stress-induced bacterial small RNA, SgrS, which induces the degradation of target messenger RNAs (mRNAs). SgrS binds to a primary target mRNA in a reversible and dynamic fashion, and formation of SgrS-mRNA complexes is rate-limiting, dictating the overall regulation efficiency in vivo. Examination of a secondary target indicated that differences in the target search kinetics contribute to setting the regulation priority among different target mRNAs. This super-resolution imaging and analysis approach provides a conceptual framework that can be generalized to other small RNA systems and other target search processes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410144/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4410144/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Fei, Jingyi -- Singh, Digvijay -- Zhang, Qiucen -- Park, Seongjin -- Balasubramanian, Divya -- Golding, Ido -- Vanderpool, Carin K -- Ha, Taekjip -- GM 112659/GM/NIGMS NIH HHS/ -- GM065367/GM/NIGMS NIH HHS/ -- GM082837/GM/NIGMS NIH HHS/ -- GM092830/GM/NIGMS NIH HHS/ -- R01 GM065367/GM/NIGMS NIH HHS/ -- R01 GM082837/GM/NIGMS NIH HHS/ -- R01 GM092830/GM/NIGMS NIH HHS/ -- R01 GM112659/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Mar 20;347(6228):1371-4. doi: 10.1126/science.1258849.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for the Physics of Living Cells, Department of Physics, University of Illinois, Urbana, IL, USA. ; Center for Biophysics and Computational Biology, University of Illinois, Urbana, IL, USA. ; Department of Microbiology, University of Illinois, Urbana, IL, USA. ; Center for the Physics of Living Cells, Department of Physics, University of Illinois, Urbana, IL, USA. Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, USA. ; Department of Microbiology, University of Illinois, Urbana, IL, USA. tjha@illinois.edu cvanderp@life.uiuc.edu. ; Center for the Physics of Living Cells, Department of Physics, University of Illinois, Urbana, IL, USA. Center for Biophysics and Computational Biology, University of Illinois, Urbana, IL, USA. Carl R. Woese Institute for Genomic Biology, Howard Hughes Medical Institute, Urbana, IL, USA. Howard Hughes Medical Institute, Urbana, IL, USA. tjha@illinois.edu cvanderp@life.uiuc.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25792329" target="_blank"〉PubMed〈/a〉
    Keywords: *Base Pairing ; Endoribonucleases/chemistry/genetics ; Escherichia coli/genetics/metabolism ; Kinetics ; Molecular Imaging/*methods ; Mutation ; Phosphoenolpyruvate Sugar Phosphotransferase System/genetics ; *RNA Stability ; RNA, Messenger/*chemistry ; RNA, Small Untranslated/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 11
    Publication Date: 2015-08-08
    Description: Cytoplasmic aggregation of TDP-43, accompanied by its nuclear clearance, is a key common pathological hallmark of amyotrophic lateral sclerosis and frontotemporal dementia (ALS-FTD). However, a limited understanding of this RNA-binding protein (RBP) impedes the clarification of pathogenic mechanisms underlying TDP-43 proteinopathy. In contrast to RBPs that regulate splicing of conserved exons, we found that TDP-43 repressed the splicing of nonconserved cryptic exons, maintaining intron integrity. When TDP-43 was depleted from mouse embryonic stem cells, these cryptic exons were spliced into messenger RNAs, often disrupting their translation and promoting nonsense-mediated decay. Moreover, enforced repression of cryptic exons prevented cell death in TDP-43-deficient cells. Furthermore, repression of cryptic exons was impaired in ALS-FTD cases, suggesting that this splicing defect could potentially underlie TDP-43 proteinopathy.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ling, Jonathan P -- Pletnikova, Olga -- Troncoso, Juan C -- Wong, Philip C -- P50AG05146/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2015 Aug 7;349(6248):650-5. doi: 10.1126/science.aab0983.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. ; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. ; Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205-2196, USA. wong@jhmi.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26250685" target="_blank"〉PubMed〈/a〉
    Keywords: Amyotrophic Lateral Sclerosis/*genetics ; Animals ; Base Sequence ; Cells, Cultured ; Cysteine Endopeptidases/genetics ; DNA-Binding Proteins/genetics/*physiology ; Embryonic Stem Cells ; Exons/*genetics ; Frontotemporal Dementia/*genetics ; Gene Knockout Techniques ; HeLa Cells ; Humans ; Mice ; Molecular Sequence Data ; Protein Isoforms/genetics ; *RNA Splicing ; RNA Stability ; RNA, Messenger/metabolism ; Sequence Analysis, DNA
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 12
    Publication Date: 2015-07-18
    Description: Secretion of the cytokine interleukin-1beta (IL-1beta) by macrophages, a major driver of pathogenesis in atherosclerosis, requires two steps: Priming signals promote transcription of immature IL-1beta, and then endogenous "danger" signals activate innate immune signaling complexes called inflammasomes to process IL-1beta for secretion. Although cholesterol crystals are known to act as danger signals in atherosclerosis, what primes IL-1beta transcription remains elusive. Using a murine model of atherosclerosis, we found that cholesterol crystals acted both as priming and danger signals for IL-1beta production. Cholesterol crystals triggered neutrophils to release neutrophil extracellular traps (NETs). NETs primed macrophages for cytokine release, activating T helper 17 (TH17) cells that amplify immune cell recruitment in atherosclerotic plaques. Therefore, danger signals may drive sterile inflammation, such as that seen in atherosclerosis, through their interactions with neutrophils.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warnatsch, Annika -- Ioannou, Marianna -- Wang, Qian -- Papayannopoulos, Venizelos -- MC_UP_1202/13/Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2015 Jul 17;349(6245):316-20. doi: 10.1126/science.aaa8064. Epub 2015 Jul 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Mill Hill Laboratory, Francis Crick Institute, London NW7 1AA, UK. ; Mill Hill Laboratory, Francis Crick Institute, London NW7 1AA, UK. veni.p@crick.ac.uk.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26185250" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Apolipoproteins E/genetics ; Atherosclerosis/*immunology ; Cells, Cultured ; Cholesterol/chemistry/immunology ; Disease Models, Animal ; Extracellular Traps/*immunology ; Humans ; Inflammasomes/immunology ; Inflammation/immunology ; Interleukin-1beta/*biosynthesis/genetics ; Macrophages/*immunology ; Mice ; Mice, Mutant Strains ; Neutrophils/*immunology ; Signal Transduction ; Th17 Cells/immunology ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 13
    Publication Date: 2015-09-26
    Description: Experimental, theoretical, and computational studies of small proteins suggest that interresidue contacts not present in the folded structure play little or no role in the self-assembly mechanism. Non-native contacts can, however, influence folding kinetics by introducing additional local minima that slow diffusion over the global free-energy barrier between folded and unfolded states. Here, we combine single-molecule fluorescence with all-atom molecular dynamics simulations to discover the structural origin for the slow diffusion that markedly decreases the folding rate for a designed alpha-helical protein. Our experimental determination of transition path times and our analysis of the simulations point to non-native salt bridges between helices as the source, which provides a quantitative glimpse of how specific intramolecular interactions influence protein folding rates by altering dynamics and not activation free energies.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chung, Hoi Sung -- Piana-Agostinetti, Stefano -- Shaw, David E -- Eaton, William A -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2015 Sep 25;349(6255):1504-10. doi: 10.1126/science.aab1369.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemical Physics, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, 20892-0520, USA. chunghoi@niddk.nih.gov stefano.piana-agostinetti@DEShawResearch.com david.shaw@DEShawResearch.com eaton@helix.nih.gov. ; D. E. Shaw Research, New York, NY 10036, USA. chunghoi@niddk.nih.gov stefano.piana-agostinetti@DEShawResearch.com david.shaw@DEShawResearch.com eaton@helix.nih.gov. ; D. E. Shaw Research, New York, NY 10036, USA. Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032, USA. chunghoi@niddk.nih.gov stefano.piana-agostinetti@DEShawResearch.com david.shaw@DEShawResearch.com eaton@helix.nih.gov.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26404828" target="_blank"〉PubMed〈/a〉
    Keywords: Diffusion ; Entropy ; Hydrogen-Ion Concentration ; Kinetics ; *Models, Chemical ; Molecular Dynamics Simulation ; *Protein Folding ; Protein Structure, Secondary ; Proteins/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 14
    Publication Date: 2015-02-24
    Description: Amyotrophic lateral sclerosis (ALS) is a devastating neurological disease with no effective treatment. We report the results of a moderate-scale sequencing study aimed at increasing the number of genes known to contribute to predisposition for ALS. We performed whole-exome sequencing of 2869 ALS patients and 6405 controls. Several known ALS genes were found to be associated, and TBK1 (the gene encoding TANK-binding kinase 1) was identified as an ALS gene. TBK1 is known to bind to and phosphorylate a number of proteins involved in innate immunity and autophagy, including optineurin (OPTN) and p62 (SQSTM1/sequestosome), both of which have also been implicated in ALS. These observations reveal a key role of the autophagic pathway in ALS and suggest specific targets for therapeutic intervention.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4437632/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4437632/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Cirulli, Elizabeth T -- Lasseigne, Brittany N -- Petrovski, Slave -- Sapp, Peter C -- Dion, Patrick A -- Leblond, Claire S -- Couthouis, Julien -- Lu, Yi-Fan -- Wang, Quanli -- Krueger, Brian J -- Ren, Zhong -- Keebler, Jonathan -- Han, Yujun -- Levy, Shawn E -- Boone, Braden E -- Wimbish, Jack R -- Waite, Lindsay L -- Jones, Angela L -- Carulli, John P -- Day-Williams, Aaron G -- Staropoli, John F -- Xin, Winnie W -- Chesi, Alessandra -- Raphael, Alya R -- McKenna-Yasek, Diane -- Cady, Janet -- Vianney de Jong, J M B -- Kenna, Kevin P -- Smith, Bradley N -- Topp, Simon -- Miller, Jack -- Gkazi, Athina -- FALS Sequencing Consortium -- Al-Chalabi, Ammar -- van den Berg, Leonard H -- Veldink, Jan -- Silani, Vincenzo -- Ticozzi, Nicola -- Shaw, Christopher E -- Baloh, Robert H -- Appel, Stanley -- Simpson, Ericka -- Lagier-Tourenne, Clotilde -- Pulst, Stefan M -- Gibson, Summer -- Trojanowski, John Q -- Elman, Lauren -- McCluskey, Leo -- Grossman, Murray -- Shneider, Neil A -- Chung, Wendy K -- Ravits, John M -- Glass, Jonathan D -- Sims, Katherine B -- Van Deerlin, Vivianna M -- Maniatis, Tom -- Hayes, Sebastian D -- Ordureau, Alban -- Swarup, Sharan -- Landers, John -- Baas, Frank -- Allen, Andrew S -- Bedlack, Richard S -- Harper, J Wade -- Gitler, Aaron D -- Rouleau, Guy A -- Brown, Robert -- Harms, Matthew B -- Cooper, Gregory M -- Harris, Tim -- Myers, Richard M -- Goldstein, David B -- 089701/Wellcome Trust/United Kingdom -- K08 NS075094/NS/NINDS NIH HHS/ -- P01 AG017586/AG/NIA NIH HHS/ -- P01 AG032953/AG/NIA NIH HHS/ -- P50 AG025688/AG/NIA NIH HHS/ -- R37 NS033123/NS/NINDS NIH HHS/ -- R37 NS083524/NS/NINDS NIH HHS/ -- T32 GM007754/GM/NIGMS NIH HHS/ -- TL1 TR001066/TR/NCATS NIH HHS/ -- UL1 TR001067/TR/NCATS NIH HHS/ -- New York, N.Y. -- Science. 2015 Mar 27;347(6229):1436-41. doi: 10.1126/science.aaa3650. Epub 2015 Feb 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Applied Genomics and Precision Medicine, Duke University School of Medicine, Durham, NC 27708, USA. ; HudsonAlpha Institute for Biotechnology, Huntsville, AL 35806, USA. ; Institute for Genomic Medicine, Columbia University, New York, NY 10032, USA. ; Department of Neurology, University of Massachusetts Medical School, Worcester, MA 01655, USA. ; Montreal Neurological Institute, Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec H3A 2B4, Canada. ; Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305, USA. ; Duke University School of Medicine, Durham, NC 27708, USA. ; Biogen Idec, Cambridge, MA 02142, USA. ; Neurogenetics DNA Diagnostic Laboratory, Center for Human Genetics Research, Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA. ; Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA. ; Department of Genome Analysis, Academic Medical Center, Meibergdreef 9, 1105AZ Amsterdam, Netherlands. ; Academic Unit of Neurology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Republic of Ireland. ; Department of Basic and Clinical Neuroscience, King's College London, Institute of Psychiatry, Psychology and Neuroscience, London SE5 8AF, UK. ; Department of Neurology, Brain Center Rudolf Magnus, University Medical Centre Utrecht, 3508 GA Utrecht, Netherlands. ; Department of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Milan 20149, Italy, and Department of Pathophysiology and Transplantation, Dino Ferrari Center, Universita degli Studi di Milano, Milan 20122, Italy. ; Cedars Sinai Medical Center, Los Angeles, CA 90048, USA. ; Houston Methodist Hospital, Houston, TX 77030, USA, and Weill Cornell Medical College of Cornell University, New York, NY 10065, USA. ; Ludwig Institute for Cancer Research and Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA. ; Department of Neurology, University of Utah School of Medicine, Salt Lake City, UT 84112, USA. ; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Neurology, Penn ALS Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Neurology, Penn Frontotemporal Degeneration Center, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA. ; Department of Neurology, Center for Motor Neuron Biology and Disease, Columbia University, New York, NY 10032, USA. ; Department of Pediatrics and Medicine, Columbia University, New York, NY 10032, USA. ; Department of Neurosciences, University of California, San Diego, La Jolla, CA 92093, USA. ; Department of Neurology, Emory University, Atlanta, GA 30322, USA. ; Department of Biochemistry & Molecular Biophysics, Columbia University, New York, NY 10027, USA. ; Biogen Idec, Cambridge, MA 02142, USA. Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA. ; Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA. ; Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC 27708, USA. ; Duke ALS Clinic and Durham VA Medical Center, Durham, NC 27708, USA. ; Biogen Idec, Cambridge, MA 02142, USA. tim.harris@biogenidec.com.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700176" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/genetics/metabolism ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Amyotrophic Lateral Sclerosis/*genetics ; Autophagy/*genetics ; Exome/*genetics ; Female ; Genes ; Genetic Association Studies ; *Genetic Predisposition to Disease ; Humans ; Male ; Middle Aged ; Protein Binding ; Protein-Serine-Threonine Kinases/*genetics/metabolism ; Risk ; Sequence Analysis, DNA ; Transcription Factor TFIIIA/genetics/metabolism ; Young Adult
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 15
    Publication Date: 2015-04-11
    Description: To address how the configuration of conjugated ubiquitins determines the recognition of substrates by the proteasome, we analyzed the degradation kinetics of substrates with chemically defined ubiquitin configurations. Contrary to the view that a tetraubiquitin chain is the minimal signal for efficient degradation, we find that distributing the ubiquitins as diubiquitin chains provides a more efficient signal. To understand how the proteasome actually discriminates among ubiquitin configurations, we developed single-molecule assays that distinguished intermediate steps of degradation kinetically. The level of ubiquitin on a substrate drives proteasome-substrate interaction, whereas the chain structure of ubiquitin affects translocation into the axial channel on the proteasome. Together these two features largely determine the susceptibility of substrates for proteasomal degradation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450770/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4450770/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Ying -- Lee, Byung-hoon -- King, Randall W -- Finley, Daniel -- Kirschner, Marc W -- GM43601/GM/NIGMS NIH HHS/ -- GM66492/GM/NIGMS NIH HHS/ -- R01 GM039023/GM/NIGMS NIH HHS/ -- R01 GM066492/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Apr 10;348(6231):1250834. doi: 10.1126/science.1250834.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. ; Department of Cell Biology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA. ; Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. marc@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25859050" target="_blank"〉PubMed〈/a〉
    Keywords: Cyclin B/metabolism ; Geminin/metabolism ; Humans ; Kinetics ; Proteasome Endopeptidase Complex/chemistry/*metabolism ; Protein Binding ; Protein Transport ; *Proteolysis ; Securin/metabolism ; Stochastic Processes ; Ubiquitin/chemistry/*metabolism ; Ubiquitinated Proteins/chemistry/*metabolism ; Ubiquitination
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 16
    Publication Date: 2015-04-11
    Description: Biological processes require specific enzymatic reactions, paradoxically involving short recognition sequences. As an example, cell-cycle timing depends on a sequence of ubiquitylation events mediated by the anaphase-promoting complex (APC) based on short redundant motifs. To understand the origin of specificity, we designed single-molecule fluorescence assays that capture transient ubiquitylation reactions. We find that the APC-mediated ubiquitylation involves a highly processive initial reaction on the substrate, followed by multiple encounters and reactions at a slower rate. The initial ubiquitylation greatly enhances the substrate's binding affinity in subsequent reactions, by both increasing the on-rate and decreasing the off-rate. We postulate that these cycles of positive feedback enable high specificity for substrates with short recognition motifs in a complex cellular environment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449139/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4449139/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lu, Ying -- Wang, Weiping -- Kirschner, Marc W -- 5R01GM039023-26/GM/NIGMS NIH HHS/ -- R01 GM039023/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2015 Apr 10;348(6231):1248737. doi: 10.1126/science.1248737. Epub 2015 Apr 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. ; Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston, MA 02115, USA. marc@hms.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25859049" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase-Promoting Complex-Cyclosome/antagonists & ; inhibitors/chemistry/*metabolism ; Cell Cycle ; Cyclin A/metabolism ; Cyclin B/metabolism ; Feedback, Physiological ; Fluorescence ; Fluorescent Dyes ; HeLa Cells ; Humans ; Kinetics ; Protein Binding ; Protein Interaction Domains and Motifs ; SMN Complex Proteins/metabolism ; Substrate Specificity ; Ubiquitin/metabolism ; Ubiquitination
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 17
    Publication Date: 2015-01-24
    Description: The 26S proteasome is a key player in eukaryotic protein quality control and in the regulation of numerous cellular processes. Here, we describe quantitative in situ structural studies of this highly dynamic molecular machine in intact hippocampal neurons. We used electron cryotomography with the Volta phase plate, which allowed high fidelity and nanometer precision localization of 26S proteasomes. We undertook a molecular census of single- and double-capped proteasomes and assessed the conformational states of individual complexes. Under the conditions of the experiment-that is, in the absence of proteotoxic stress-only 20% of the 26S proteasomes were engaged in substrate processing. The remainder was in the substrate-accepting ground state. These findings suggest that in the absence of stress, the capacity of the proteasome system is not fully used.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Asano, Shoh -- Fukuda, Yoshiyuki -- Beck, Florian -- Aufderheide, Antje -- Forster, Friedrich -- Danev, Radostin -- Baumeister, Wolfgang -- New York, N.Y. -- Science. 2015 Jan 23;347(6220):439-42. doi: 10.1126/science.1261197.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Structural Biology, Max-Planck Institute of Biochemistry, 82152 Martinsried, Germany. ; Department of Molecular Structural Biology, Max-Planck Institute of Biochemistry, 82152 Martinsried, Germany. baumeist@biochem.mpg.de.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25613890" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Hippocampus/*cytology/enzymology ; Neurons/*enzymology/*ultrastructure ; Proteasome Endopeptidase Complex/*chemistry ; Protein Conformation ; Rats ; Stress, Physiological
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 18
    Publication Date: 2015-09-26
    Description: Cellular senescence is a terminal stress-activated program controlled by the p53 and p16(INK4a) tumor suppressor proteins. A striking feature of senescence is the senescence-associated secretory phenotype (SASP), a pro-inflammatory response linked to tumor promotion and aging. We have identified the transcription factor GATA4 as a senescence and SASP regulator. GATA4 is stabilized in cells undergoing senescence and is required for the SASP. Normally, GATA4 is degraded by p62-mediated selective autophagy, but this regulation is suppressed during senescence, thereby stabilizing GATA4. GATA4 in turn activates the transcription factor NF-kappaB to initiate the SASP and facilitate senescence. GATA4 activation depends on the DNA damage response regulators ATM and ATR, but not on p53 or p16(INK4a). GATA4 accumulates in multiple tissues, including the aging brain, and could contribute to aging and its associated inflammation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kang, Chanhee -- Xu, Qikai -- Martin, Timothy D -- Li, Mamie Z -- Demaria, Marco -- Aron, Liviu -- Lu, Tao -- Yankner, Bruce A -- Campisi, Judith -- Elledge, Stephen J -- AG009909/AG/NIA NIH HHS/ -- AG017242/AG/NIA NIH HHS/ -- AG046174/AG/NIA NIH HHS/ -- DP1 OD006849/OD/NIH HHS/ -- DP1OD006849/OD/NIH HHS/ -- GM44664/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Sep 25;349(6255):aaa5612. doi: 10.1126/science.aaa5612.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Harvard Medical School, Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA. ; Buck Institute for Research on Aging, Novato, CA 94945, USA. ; Department of Genetics, Harvard Medical School, Boston, MA 02115, USA. ; Department of Genetics, Harvard Medical School, Division of Genetics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Boston, MA 02115, USA. selledge@genetics.med.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26404840" target="_blank"〉PubMed〈/a〉
    Keywords: Aging/*genetics/metabolism ; Animals ; Ataxia Telangiectasia Mutated Proteins/metabolism ; Autophagy/*genetics ; Brain/metabolism ; Cell Aging/*genetics ; Cell Cycle/genetics ; Cells, Cultured ; Cyclin-Dependent Kinase Inhibitor p16 ; *DNA Damage ; Fibroblasts ; GATA4 Transcription Factor/genetics/*metabolism ; Gene Expression Profiling ; Humans ; Inflammation/*genetics ; Interleukin-1alpha/genetics/metabolism ; Mice ; Mice, Inbred C57BL ; MicroRNAs/genetics/metabolism ; NF-kappa B/metabolism ; Phenotype ; Promoter Regions, Genetic ; Tumor Necrosis Factor Receptor-Associated Peptides and ; Proteins/genetics/metabolism ; Tumor Suppressor Protein p53/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 19
    Publication Date: 2015-02-24
    Description: Pancreatic beta cells lower insulin release in response to nutrient depletion. The question of whether starved beta cells induce macroautophagy, a predominant mechanism maintaining energy homeostasis, remains poorly explored. We found that, in contrast to many mammalian cells, macroautophagy in pancreatic beta cells was suppressed upon starvation. Instead, starved beta cells induced lysosomal degradation of nascent secretory insulin granules, which was controlled by protein kinase D (PKD), a key player in secretory granule biogenesis. Starvation-induced nascent granule degradation triggered lysosomal recruitment and activation of mechanistic target of rapamycin that suppressed macroautophagy. Switching from macroautophagy to insulin granule degradation was important to keep insulin secretion low upon fasting. Thus, beta cells use a PKD-dependent mechanism to adapt to nutrient availability and couple autophagy flux to secretory function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goginashvili, Alexander -- Zhang, Zhirong -- Erbs, Eric -- Spiegelhalter, Coralie -- Kessler, Pascal -- Mihlan, Michael -- Pasquier, Adrien -- Krupina, Ksenia -- Schieber, Nicole -- Cinque, Laura -- Morvan, Joelle -- Sumara, Izabela -- Schwab, Yannick -- Settembre, Carmine -- Ricci, Romeo -- New York, N.Y. -- Science. 2015 Feb 20;347(6224):878-82. doi: 10.1126/science.aaa2628.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut de Genetique et de Biologie Moleculaire et Cellulaire (IGBMC), INSERM, CNRS, Universite de Strasbourg, 67404 Illkirch, France. ; Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), 69117 Heidelberg, Germany. ; Dulbecco Telethon Institute and Telethon Institute of Genetics and Medicine (TIGEM), 80131 Naples, Italy. ; Dulbecco Telethon Institute and Telethon Institute of Genetics and Medicine (TIGEM), 80131 Naples, Italy. Medical Genetics, Department of Medical and Translational Science Unit, Federico II University, Via Pansini 5, 80131 Naples, Italy. ; Institut de Genetique et de Biologie Moleculaire et Cellulaire (IGBMC), INSERM, CNRS, Universite de Strasbourg, 67404 Illkirch, France. Nouvel Hopital Civil, Laboratoire de Biochimie et de Biologie Moleculaire, Universite de Strasbourg, 67091 Strasbourg, France. romeo.ricci@igbmc.fr.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700520" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Autophagy ; Cells, Cultured ; Fasting ; Humans ; Insulin/*secretion ; Insulin-Secreting Cells/*physiology/secretion/ultrastructure ; Mice ; Mice, Mutant Strains ; Mice, Transgenic ; Mitogen-Activated Protein Kinase 13/genetics ; Protein Kinase C/physiology ; Secretory Vesicles/*physiology/secretion
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 20
    Publication Date: 2015-04-25
    Description: Protein synthesis rates can affect gene expression and the folding and activity of the translation product. Interactions between the nascent polypeptide and the ribosome exit tunnel represent one mode of regulating synthesis rates. The SecM protein arrests its own translation, and release of arrest at the translocon has been proposed to occur by mechanical force. Using optical tweezers, we demonstrate that arrest of SecM-stalled ribosomes can indeed be rescued by force alone and that the force needed to release stalling can be generated in vivo by a nascent chain folding near the ribosome tunnel exit. We formulate a kinetic model describing how a protein can regulate its own synthesis by the force generated during folding, tuning ribosome activity to structure acquisition by a nascent polypeptide.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618485/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4618485/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldman, Daniel H -- Kaiser, Christian M -- Milin, Anthony -- Righini, Maurizio -- Tinoco, Ignacio Jr -- Bustamante, Carlos -- 5K99GM086516/GM/NIGMS NIH HHS/ -- 5R01GM32543/GM/NIGMS NIH HHS/ -- GM10840/GM/NIGMS NIH HHS/ -- K99 GM086516/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):457-60. doi: 10.1126/science.1261909. Epub 2015 Apr 23.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of California, Berkeley, CA 94720, USA. ; Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA. Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA. carlos@alice.berkeley.edu kaiser@jhu.edu. ; Department of Chemistry, University of California, Berkeley, CA 94720, USA. Department of Biology, Johns Hopkins University, Baltimore, MD 21218, USA. ; Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA. ; Department of Chemistry, University of California, Berkeley, CA 94720, USA. Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA. Department of Physics, University of California, Berkeley, CA 94720, USA. Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA. Kavli Energy Nanosciences Institute at Berkeley, Berkeley, CA 94720, USA. Howard Hughes Medical Institute, University of California, Berkeley, CA 94720, USA. carlos@alice.berkeley.edu kaiser@jhu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908824" target="_blank"〉PubMed〈/a〉
    Keywords: Escherichia coli/*metabolism ; Escherichia coli Proteins/*biosynthesis/*chemistry ; In Vitro Techniques ; Kinetics ; Mechanical Processes ; Optical Tweezers ; *Peptide Chain Elongation, Translational ; *Protein Folding ; Ribosomes/chemistry/*metabolism ; Transcription Factors/*biosynthesis/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 21
    Publication Date: 2015-02-24
    Description: Mutations in sunlight-induced melanoma arise from cyclobutane pyrimidine dimers (CPDs), DNA photoproducts that are typically created picoseconds after an ultraviolet (UV) photon is absorbed at thymine or cytosine. We found that in melanocytes, CPDs are generated for 〉3 hours after exposure to UVA, a major component of the radiation in sunlight and in tanning beds. These "dark CPDs" constitute the majority of CPDs and include the cytosine-containing CPDs that initiate UV-signature C--〉T mutations. Dark CPDs arise when UV-induced reactive oxygen and nitrogen species combine to excite an electron in fragments of the pigment melanin. This creates a quantum triplet state that has the energy of a UV photon but induces CPDs by energy transfer to DNA in a radiation-independent manner. Melanin may thus be carcinogenic as well as protective against cancer. These findings also validate the long-standing suggestion that chemically generated excited electronic states are relevant to mammalian biology.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4432913/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4432913/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Premi, Sanjay -- Wallisch, Silvia -- Mano, Camila M -- Weiner, Adam B -- Bacchiocchi, Antonella -- Wakamatsu, Kazumasa -- Bechara, Etelvino J H -- Halaban, Ruth -- Douki, Thierry -- Brash, Douglas E -- 2 P50 CA121974/CA/NCI NIH HHS/ -- P30 DK034989/DK/NIDDK NIH HHS/ -- P30 DK34989/DK/NIDDK NIH HHS/ -- P50 CA121974/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2015 Feb 20;347(6224):842-7. doi: 10.1126/science.1256022.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. ; Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo 05513-970 SP, Brazil. ; Department of Dermatology, Yale University School of Medicine, New Haven, CT 06520, USA. ; Department of Chemistry, Fujita Health University School of Health Sciences, Toyoake, Aichi 470-1192, Japan. ; Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo 05513-970 SP, Brazil. Departamento de Ciencias Exatas e da Terra, Universidade Federal de Sao Paulo, Diadema, Sao Paulo 09972-270 SP, Brazil. ; Department of Dermatology, Yale University School of Medicine, New Haven, CT 06520, USA. Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA. ; INAC/LCIB UMR-E3 CEA-UJF/Commissariat a l'Energie Atomique (CEA), 38054 Grenoble Cedex 9, France. ; Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, CT 06520, USA. Yale Comprehensive Cancer Center, Yale University School of Medicine, New Haven, CT 06520, USA. douglas.brash@yale.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25700512" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cytosine/metabolism ; DNA/chemistry/genetics/*radiation effects ; DNA Damage/*genetics ; Energy Transfer ; Humans ; Melanins/chemistry/*metabolism ; Melanocytes/metabolism/*radiation effects ; Melanoma/*genetics ; Mice ; Mice, Inbred C57BL ; Mutagenesis ; Mutation ; Neoplasms, Radiation-Induced/*genetics ; Photons ; Pyrimidine Dimers/*metabolism ; Receptor, Melanocortin, Type 1/genetics ; Skin Neoplasms/*genetics ; Sunlight/adverse effects ; Thymine/metabolism ; Ultraviolet Rays
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 22
    Publication Date: 2015-04-25
    Description: In cells, biosynthetic machinery coordinates protein synthesis and folding to optimize efficiency and minimize off-pathway outcomes. However, it has been difficult to delineate experimentally the mechanisms responsible. Using fluorescence resonance energy transfer, we studied cotranslational folding of the first nucleotide-binding domain from the cystic fibrosis transmembrane conductance regulator. During synthesis, folding occurred discretely via sequential compaction of N-terminal, alpha-helical, and alpha/beta-core subdomains. Moreover, the timing of these events was critical; premature alpha-subdomain folding prevented subsequent core formation. This process was facilitated by modulating intrinsic folding propensity in three distinct ways: delaying alpha-subdomain compaction, facilitating beta-strand intercalation, and optimizing translation kinetics via codon usage. Thus, de novo folding is translationally tuned by an integrated cellular response that shapes the cotranslational folding landscape at critical stages of synthesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Soo Jung -- Yoon, Jae Seok -- Shishido, Hideki -- Yang, Zhongying -- Rooney, LeeAnn A -- Barral, Jose M -- Skach, William R -- P30CA069533/CA/NCI NIH HHS/ -- P30EYE010572/PHS HHS/ -- R01DK51818/DK/NIDDK NIH HHS/ -- R01GM53457/GM/NIGMS NIH HHS/ -- S10OD012246/OD/NIH HHS/ -- S10RR025571/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2015 Apr 24;348(6233):444-8. doi: 10.1126/science.aaa3974.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biochemistry and Molecular Biology, Oregon Health and Science University (OHSU), Portland, OR 97239, USA. ; Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77550-0620, USA. Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77550-0620, USA. ; Department of Biochemistry and Molecular Biology, Oregon Health and Science University (OHSU), Portland, OR 97239, USA. Cystic Fibrosis Foundation Therapeutics, Bethesda, MD 20814, USA. skachw@ohsu.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25908822" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Codon/chemistry/*metabolism ; Cystic Fibrosis Transmembrane Conductance ; Regulator/*biosynthesis/*chemistry/genetics ; Fluorescence Resonance Energy Transfer ; Humans ; Kinetics ; Molecular Sequence Data ; *Peptide Chain Elongation, Translational ; *Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Ribosomes/chemistry/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 23
    Publication Date: 2016-02-26
    Description: Voltage-gated CaV1.2 channels (L-type calcium channel alpha1C subunits) are critical mediators of transcription-dependent neural plasticity. Whether these channels signal via the influx of calcium ion (Ca(2+)), voltage-dependent conformational change (VDeltaC), or a combination of the two has thus far been equivocal. We fused CaV1.2 to a ligand-gated Ca(2+)-permeable channel, enabling independent control of localized Ca(2+) and VDeltaC signals. This revealed an unexpected dual requirement: Ca(2+) must first mobilize actin-bound Ca(2+)/calmodulin-dependent protein kinase II, freeing it for subsequent VDeltaC-mediated accumulation. Neither signal alone sufficed to activate transcription. Signal order was crucial: Efficiency peaked when Ca(2+) preceded VDeltaC by 10 to 20 seconds. CaV1.2 VDeltaC synergistically augmented signaling by N-methyl-d-aspartate receptors. Furthermore, VDeltaC mistuning correlated with autistic symptoms in Timothy syndrome. Thus, nonionic VDeltaC signaling is vital to the function of CaV1.2 in synaptic and neuropsychiatric processes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Li, Boxing -- Tadross, Michael R -- Tsien, Richard W -- New York, N.Y. -- Science. 2016 Feb 19;351(6275):863-7. doi: 10.1126/science.aad3647.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience and Physiology and New York University Neuroscience Institute, New York, NY 10016, USA. ; Department of Molecular and Cellular Physiology, Beckman Center, School of Medicine, Stanford University, Stanford, CA 94305, USA. Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA. tadrossm@janelia.hhmi.org. ; Department of Neuroscience and Physiology and New York University Neuroscience Institute, New York, NY 10016, USA. Department of Molecular and Cellular Physiology, Beckman Center, School of Medicine, Stanford University, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26912895" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Autistic Disorder/genetics/metabolism ; Calcium Channel Blockers/pharmacology ; Calcium Channels, L-Type/chemistry/*metabolism ; *Calcium Signaling ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/*metabolism ; Cells, Cultured ; Cyclic AMP Response Element-Binding Protein/metabolism ; *Gene Expression Regulation ; HEK293 Cells ; Hippocampus/cytology ; Humans ; Long QT Syndrome/genetics/metabolism ; Neuronal Plasticity/*genetics ; Neurons/drug effects/*metabolism ; Nimodipine/pharmacology ; Protein Conformation/drug effects ; Rats ; Rats, Sprague-Dawley ; Receptors, N-Methyl-D-Aspartate/metabolism ; Synapses/metabolism ; Syndactyly/genetics/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 24
    Publication Date: 2016-01-23
    Description: Differentiated macrophages can self-renew in tissues and expand long term in culture, but the gene regulatory mechanisms that accomplish self-renewal in the differentiated state have remained unknown. Here we show that in mice, the transcription factors MafB and c-Maf repress a macrophage-specific enhancer repertoire associated with a gene network that controls self-renewal. Single-cell analysis revealed that, in vivo, proliferating resident macrophages can access this network by transient down-regulation of Maf transcription factors. The network also controls embryonic stem cell self-renewal but is associated with distinct embryonic stem cell-specific enhancers. This indicates that distinct lineage-specific enhancer platforms regulate a shared network of genes that control self-renewal potential in both stem and mature cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Soucie, Erinn L -- Weng, Ziming -- Geirsdottir, Laufey -- Molawi, Kaaweh -- Maurizio, Julien -- Fenouil, Romain -- Mossadegh-Keller, Noushine -- Gimenez, Gregory -- VanHille, Laurent -- Beniazza, Meryam -- Favret, Jeremy -- Berruyer, Carole -- Perrin, Pierre -- Hacohen, Nir -- Andrau, J-C -- Ferrier, Pierre -- Dubreuil, Patrice -- Sidow, Arend -- Sieweke, Michael H -- P01AG036695/AG/NIA NIH HHS/ -- New York, N.Y. -- Science. 2016 Feb 12;351(6274):aad5510. doi: 10.1126/science.aad5510. Epub 2016 Jan 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre d'Immunologie de Marseille-Luminy, Universite Aix-Marseille, UM2, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France. INSERM, U1104, Marseille, France. CNRS, UMR 7280, Marseille, France. Centre de Recherche en Cancerologie de Marseille, INSERM (U1068), CNRS (U7258), Universite Aix-Marseille (UM105), Marseille, France. sieweke@ciml.univ-mrs.fr erinn.soucie@inserm.fr arend@stanford.edu. ; Department of Pathology, Stanford University, Stanford, CA 94305-5324, USA. ; Centre d'Immunologie de Marseille-Luminy, Universite Aix-Marseille, UM2, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France. INSERM, U1104, Marseille, France. CNRS, UMR 7280, Marseille, France. ; Centre d'Immunologie de Marseille-Luminy, Universite Aix-Marseille, UM2, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France. INSERM, U1104, Marseille, France. CNRS, UMR 7280, Marseille, France. Max-Delbruck-Centrum fur Molekulare Medizin in der Helmholtz-Gemeinschaft, 10 Robert-Rossle-Strasse, 13125 Berlin, Germany. ; Broad Institute of Harvard University and MIT, Cambridge, MA 02142, USA. ; Centre d'Immunologie de Marseille-Luminy, Universite Aix-Marseille, UM2, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France. INSERM, U1104, Marseille, France. CNRS, UMR 7280, Marseille, France. Institut de Genetique Moleculaire de Montpellier, CNRS UMR 5535, 1919 Route de Mende, 34293 Montpellier, France. ; Centre de Recherche en Cancerologie de Marseille, INSERM (U1068), CNRS (U7258), Universite Aix-Marseille (UM105), Marseille, France. ; Department of Pathology, Stanford University, Stanford, CA 94305-5324, USA. Department of Genetics, Stanford University, Stanford, CA 94305, USA. sieweke@ciml.univ-mrs.fr erinn.soucie@inserm.fr arend@stanford.edu. ; Centre d'Immunologie de Marseille-Luminy, Universite Aix-Marseille, UM2, Campus de Luminy, Case 906, 13288 Marseille Cedex 09, France. INSERM, U1104, Marseille, France. CNRS, UMR 7280, Marseille, France. Max-Delbruck-Centrum fur Molekulare Medizin in der Helmholtz-Gemeinschaft, 10 Robert-Rossle-Strasse, 13125 Berlin, Germany. sieweke@ciml.univ-mrs.fr erinn.soucie@inserm.fr arend@stanford.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26797145" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation/*genetics ; Cell Lineage/*genetics ; Cell Proliferation ; Cells, Cultured ; Down-Regulation ; Embryonic Stem Cells/*cytology ; Enhancer Elements, Genetic/*physiology ; *Gene Expression Regulation ; Gene Regulatory Networks ; Macrophages/*cytology ; MafB Transcription Factor/metabolism ; Mice ; Proto-Oncogene Proteins c-maf/metabolism ; Single-Cell Analysis ; Transcriptional Activation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 25
    Publication Date: 2016-01-30
    Description: In several human pathogens, thyX-encoded flavin-dependent thymidylate synthase (FDTS) catalyzes the last step in the biosynthesis of thymidylate, one of the four DNA nucleotides. ThyX is absent in humans, rendering FDTS an attractive antibiotic target; however, the lack of mechanistic understanding prohibits mechanism-based drug design. Here, we report trapping and characterization of two consecutive intermediates, which together with previous crystal structures indicate that the enzyme's reduced flavin relays a methylene from the folate carrier to the nucleotide acceptor. Furthermore, these results corroborate an unprecedented activation of the nucleotide that involves no covalent modification but only electrostatic polarization by the enzyme's active site. These findings indicate a mechanism that is very different from thymidylate biosynthesis in humans, underscoring the promise of FDTS as an antibiotic target.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4744818/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4744818/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mishanina, Tatiana V -- Yu, Liping -- Karunaratne, Kalani -- Mondal, Dibyendu -- Corcoran, John M -- Choi, Michael A -- Kohen, Amnon -- R01 GM110775/GM/NIGMS NIH HHS/ -- T32 GM008365/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2016 Jan 29;351(6272):507-10. doi: 10.1126/science.aad0300.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA. amnon-kohen@uiowa.edu. ; Nuclear Magnetic Resonance (NMR) Core Facility and Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA. ; Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26823429" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/*chemistry ; Catalysis ; Catalytic Domain ; *DNA Methylation ; Flavins/chemistry ; Folic Acid/chemistry ; Folic Acid Transporters/chemistry ; Humans ; Kinetics ; Thermotoga maritima/enzymology ; Thymidine Monophosphate/*biosynthesis/chemistry ; Thymidylate Synthase/*chemistry
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 26
    Publication Date: 2015-11-07
    Description: In a classical view of hematopoiesis, the various blood cell lineages arise via a hierarchical scheme starting with multipotent stem cells that become increasingly restricted in their differentiation potential through oligopotent and then unipotent progenitors. We developed a cell-sorting scheme to resolve myeloid (My), erythroid (Er), and megakaryocytic (Mk) fates from single CD34(+) cells and then mapped the progenitor hierarchy across human development. Fetal liver contained large numbers of distinct oligopotent progenitors with intermingled My, Er, and Mk fates. However, few oligopotent progenitor intermediates were present in the adult bone marrow. Instead, only two progenitor classes predominate, multipotent and unipotent, with Er-Mk lineages emerging from multipotent cells. The developmental shift to an adult "two-tier" hierarchy challenges current dogma and provides a revised framework to understand normal and disease states of human hematopoiesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Notta, Faiyaz -- Zandi, Sasan -- Takayama, Naoya -- Dobson, Stephanie -- Gan, Olga I -- Wilson, Gavin -- Kaufmann, Kerstin B -- McLeod, Jessica -- Laurenti, Elisa -- Dunant, Cyrille F -- McPherson, John D -- Stein, Lincoln D -- Dror, Yigal -- Dick, John E -- Canadian Institutes of Health Research/Canada -- Medical Research Council/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2016 Jan 8;351(6269):aab2116. doi: 10.1126/science.aab2116. Epub 2015 Nov 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada. Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada. ; Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada. ; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada. Ontario Institute for Cancer Research, Toronto, Ontario, Canada. ; Wellcome Trust, Medical Research Council Cambridge Stem Cell Institute, Department of Haematology, University of Cambridge, Cambridge, UK. ; Ecole Polytechnique Federale de Lausanne, LMC, Station 12, Lausanne, CH-1015, Switzerland. ; Medical Biophysics, University of Toronto, Toronto, Ontario, Canada. Ontario Institute for Cancer Research, Toronto, Ontario, Canada. ; The Hospital for Sick Children Research Institute, University of Toronto, Ontario, Canada. ; Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada. Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada. jdick@uhnres.utoronto.ca.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26541609" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Antigens, CD34/analysis ; Cell Lineage/genetics/*physiology ; Cell Separation ; Cells, Cultured ; Erythroid Cells/*cytology ; Fetal Blood/cytology ; Gene Expression Profiling ; Hematopoiesis/genetics/*physiology ; Humans ; Liver/cytology/embryology ; Megakaryocyte Progenitor Cells/*cytology ; Megakaryocytes/*cytology ; Multipotent Stem Cells/cytology ; Myeloid Cells/*cytology ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 27
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 2016-04-23
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pennisi, Elizabeth -- New York, N.Y. -- Science. 2016 Apr 22;352(6284):394-5. doi: 10.1126/science.352.6284.394. Epub 2016 Apr 21.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/27102455" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Evolution, Molecular ; Foundations ; Genes ; Genetic Research/*economics ; Great Britain ; Humans ; *Research Support as Topic ; *Selection, Genetic ; Sweden ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 28
    Publication Date: 1980-11-07
    Description: An analog of luteinizing hormone-releasing hormone containing a gamma-lactam as a conformational constraint has been prepared with the use of a novel cyclization of a methionine sulfonium salt. The analog is more active as a luteinizing hormone-releasing hormone agonist that the parent hormone, and provides evidence for a bioactive conformation containing a beta-turn.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Freidinger, R M -- Veber, D F -- Perlow, D S -- Brooks, J R -- Saperstein, R -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):656-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7001627" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Biological Assay ; Cells, Cultured ; Female ; *Gonadotropin-Releasing Hormone/analogs & derivatives ; Hydrogen Bonding ; Lactams ; Protein Conformation ; Rats ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 29
    Publication Date: 1980-03-28
    Description: When microbial strains compete for the same limiting nutrient in continuous culture, resource-based competition theory predicts that only one strain will survive and all others will die out. The surviving strain expected from theory will be the one with the smallest subsistence or "break-even" concentration of the limiting resource, a concentration defined by the J parameter. This prediction has been confirmed in the case of auxotrophic bacterial strains competing for limiting tryptophan. Because the value of J can be measured on the strains grown alone, the theory can predict the qualitative outcomes of mixed-growth competition in advance of actual competition.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hansen, S R -- Hubbell, S P -- New York, N.Y. -- Science. 1980 Mar 28;207(4438):1491-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6767274" target="_blank"〉PubMed〈/a〉
    Keywords: Bacteria/*growth & development ; Culture Media ; Drug Resistance, Microbial ; Escherichia coli/growth & development ; Kinetics ; Models, Theoretical ; Nalidixic Acid/pharmacology ; Nutritional Physiological Phenomena ; Pseudomonas aeruginosa/growth & development ; Tryptophan/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 30
    Publication Date: 1980-11-21
    Description: A hormonally defined medium was used to isolate a homogeneous epithelioid cell population from canine kidney. Monolayers of these cells form domes, an indication of active ion transport, and this process is inhibited by ouabain. This technique allows the isolation of primary cultures of renal epithelial cells, free of fibroblasts, for the characterization of biochemical and physiological properties related to renal function.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jefferson, D M -- Cobb, M H -- Gennaro, J F Jr -- Scott, W N -- New York, N.Y. -- Science. 1980 Nov 21;210(4472):912-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434005" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport, Active ; Cell Adhesion ; Cells, Cultured ; Culture Media ; Dogs ; Epithelium/metabolism ; Female ; Kidney/*cytology ; Male ; Sodium/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 31
    Publication Date: 1980-04-25
    Description: The patterns of the occurrence of breast cancer in 11 high-risk families were evaluated by segregation and linkage analysis. These patterns were consistent with the hypothesis that increased susceptibility to breast cancer was inherited as an autosomal dominant allele with high penetrance in women. The postulated susceptibility allele in these families may be chromosomally linked to the glutamate-pyruvate transaminase (E.C. 2.6.1.2, alanine aminotransferase) locus. Confirmation of this linkage in other families would establish the existence of a gene increasing susceptibility to breast cancer. Since there is no association in the general population between a woman's glutamate-pyruvate transaminase genotype and her cancer risk, the glutamate-pyruvate transaminase linkage cannot be used as a screening test for breast cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉King, M C -- Go, R C -- Elston, R C -- Lynch, H T -- Petrakis, N L -- New York, N.Y. -- Science. 1980 Apr 25;208(4442):406-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7367867" target="_blank"〉PubMed〈/a〉
    Keywords: Alanine Transaminase/*genetics ; Alleles ; Breast Neoplasms/*genetics/transmission ; Female ; Genes ; Genetic Linkage ; Humans ; Pedigree ; X Chromosome
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 32
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-29
    Description: Intraocular grafts of chick epithelium combined with mouse molar mesenchyme produced a variety of dental structures including perfectly formed crowns with differentiated ameloblasts depositing enamel matrix. The results suggest that the loss of teeth in Aves did not result from a loss of genetic coding for enamel synthesis in the oral epithelium but from an alteration in the tissue interactions requisite for odontogenesis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kollar, E J -- Fisher, C -- New York, N.Y. -- Science. 1980 Feb 29;207(4434):993-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7352302" target="_blank"〉PubMed〈/a〉
    Keywords: *Amelogenesis ; Animals ; Chick Embryo/*cytology ; Culture Techniques ; Dental Enamel Proteins/*biosynthesis/genetics ; Embryonic Induction ; Epithelial Cells ; Genes ; Mandible/cytology ; Mesoderm/cytology ; Mice ; *Odontogenesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 33
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-07-11
    Description: The survival of isolated rat islets transplanted into diabetic mice was prolonged markedly by maintaining the rat islets in vitro at 24 degrees C for 7 days before transplantation and administering to the recipients a single injection of antiserum to mouse and rat lymphocytes shortly before transplantation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lacy, P E -- Davie, J M -- Finke, E H -- New York, N.Y. -- Science. 1980 Jul 11;209(4453):283-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6770465" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Blood Glucose/analysis ; Cell Survival ; Cells, Cultured ; Diabetes Mellitus, Experimental/*therapy ; *Immunosuppression ; *Islets of Langerhans Transplantation ; Lymphocytes/immunology ; Male ; Mice ; Mice, Inbred BALB C ; Rats ; Transplantation, Heterologous ; Transplantation, Isogeneic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 34
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Two types of immature B cells, namely fetal liver hybridomas and the leukemic cell line 70Z/3, both of which have cytoplasmic mu chains but no light chains, were examined for DNA rearrangements of their light chain and heavy chain immunoglobulin genes. In the fetal liver hybridomas, which were constructed from fetal liver cells and a tumor cell, no light chain gene rearrangement was observed, whereas in the 70Z/3 cell line a kappa light chain rearrangement probably occurred. The results suggest that, although the lack of light chain synthesis can be due to a lack of gene rearrangement, there may also be transcriptional regulation, which may also be important for the expression of light chain immunoglobulins in immature B cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maki, R -- Kearney, J -- Paige, C -- Tonegawa, S -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1366-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6774416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; B-Lymphocytes/*immunology ; Genes ; Hybrid Cells/immunology ; Immunoglobulin Constant Regions/genetics ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Light Chains/*genetics ; Immunoglobulin Variable Region/genetics ; Immunoglobulin kappa-Chains/*genetics ; Immunoglobulin mu-Chains/*genetics ; Leukemia, Experimental/*immunology ; Liver/*embryology ; Mice ; Recombination, Genetic ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 35
    Publication Date: 1980-02-01
    Description: A 200-fold inhibition in the titer of infectious vesicular stomatitis virus (VSV) was produced in cultures of Ly cells treated with 30 reference units of interferon per milliliter. Virus particle production, as measured by VSV particle-associated transcriptase, or nucleocapsid protein was inhibited by a maximum of tenfold. The glycoprotein and membrane protein content was reduced in VSV derived from interferon-treated cells. Thus interferon-treated cells may have produced VSV particles with low infectivity, which may be related to the reduced amount of glycoprotein incorporated into such particles. These findings resemble those reported in interferon-treated cells infected with murine leukemia viruses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Maheshwari, R K -- Jay, F T -- Friedman, R M -- New York, N.Y. -- Science. 1980 Feb 1;207(4430):540-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243416" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Defective Viruses/growth & development ; Glycoproteins/*biosynthesis ; Interferons/*pharmacology ; Membrane Proteins/*biosynthesis ; Mice ; RNA, Viral/metabolism ; Vesicular stomatitis Indiana virus/*growth & development ; Viral Proteins/*biosynthesis ; Virus Replication/*drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 36
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-07-25
    Description: Intracellular recordings from voltage-clamped mouse spinal neurons in tissue culture were used to study the membrane mechanisms underlying inhibitory responses to gamma-aminobutyric acid and the (-) isomer of pentobarbital. Fluctuation analysis suggested that both substances activated ion channels in the membranes. However, the channels activated by pentobarbital remained open five times longer than those activated by gamma-aminobutyric acid.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mathers, D A -- Barker, J L -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):507-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6248961" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/drug effects/physiology ; Cells, Cultured ; Ion Channels/drug effects/*physiology ; Membrane Potentials/drug effects ; Mice ; Neurons/drug effects/*physiology ; Pentobarbital/*pharmacology ; Spinal Cord/*physiology ; gamma-Aminobutyric Acid/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 37
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-15
    Description: Autoradiographic and biochemical analyses of the hearts of female rhesus monkeys and baboons indicate that atrial and ventricular myocardial cells contain androgen receptors. Although the specific effects of nuclear uptake and retention of androgen on the function of heart muscle cells are not known, the presence of this receptor suggests that sex steroid hormones may affect myocardial function directly and may explain some of the peculiar differences in heart disease between men and women.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McGill, H C Jr -- Anselmo, V C -- Buchanan, J M -- Sheridan, P J -- New York, N.Y. -- Science. 1980 Feb 15;207(4432):775-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6766222" target="_blank"〉PubMed〈/a〉
    Keywords: Androgens/*metabolism ; Animals ; Coronary Disease/*etiology ; Dihydrotestosterone/metabolism ; Estradiol/metabolism ; Female ; Haplorhini ; Kinetics ; Macaca mulatta ; Myocardium/*metabolism ; Papio ; Receptors, Androgen/*metabolism ; Receptors, Steroid/*metabolism ; Sex Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 38
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-02-22
    Description: The life-span in vitro and other proliferative characteristics of a strain of endothelial cells cloned from the aorta of a fetal calf were examined. Cultures of these cells had a replicative life-span of approximately 80 cumulative population doublings. Growth rates in the logarithmic phase and plateau densities decreased as the cumulative population-doubling level increased. After approximately 65 percent of the life-span of a culture was completed, the percentage of cells that incorporated [3H]thymidine during a 24-hour labeling period began to decrease rapidly. The cells expressed factor VIII antigen and their intercellular borders were stainable with silver nitrate throughout the life-span of each culture. Average cellular attachment size increased more than threefold between cumulative population-doubling levels 41 and 80. The facility with which cloned strains of endothelial cells can be isolated should encourage further exploitation of this important cell culture model.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mueller, S N -- Rosen, E M -- Levine, E M -- New York, N.Y. -- Science. 1980 Feb 22;207(4433):889-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7355268" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta/cytology/embryology ; Cattle ; Cell Division ; *Cell Survival ; Cells, Cultured ; Clone Cells/*physiology ; Endothelium/*cytology ; Karyotyping
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 39
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Transfection of cultured monkey kidney cells with recombinant DNA constructed with a cloned Escherichia coli gene that codes for xanthine-guanine phosphoribosyltransferase and several different SV40 DNA-based vectors, results in the synthesis of readily measurable quantities of the bacterial enzyme. Moreover, the physiological defect in purine nucleotide synthesis characteristic of human Lesch-Nyhan cells can be overcome by the introduction of the bacterial gene into these cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulligan, R C -- Berg, P -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1422-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251549" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Cloning, Molecular/methods ; DNA, Bacterial/*genetics ; *DNA, Recombinant ; Escherichia coli ; *Genes ; Haplorhini ; Humans ; Hypoxanthine Phosphoribosyltransferase/genetics ; Lesch-Nyhan Syndrome/*genetics ; Pentosyltransferases/*genetics ; Simian virus 40/genetics ; Transduction, Genetic ; Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 40
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-06-06
    Description: Dissociated embryonic rat myocardial cells and chick myocardial cells labeled with radioactive isotope coaggregate and establish intercellular junctions. These bispecific cells reconstruct synchronously beating myocardial tissue within 24 hours of culture.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nag, A C -- Cheng, M -- New York, N.Y. -- Science. 1980 Jun 6;208(4448):1150-2.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375923" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; *Cell Aggregation ; Cells, Cultured ; Chickens ; Heart/*embryology ; Intercellular Junctions/ultrastructure ; Mosaicism ; Myocardial Contraction ; Myocardium/*cytology ; Rats ; Species Specificity
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 41
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-12
    Description: The simian guartan malaria parasite Plasmodium inui (OS strain) was cultured in a continuous flow system with rhesus monkey erythrocytes and RPMI 1640nmedium supplemented with Hepes buffer and rhesus serum. Over a 10-week period, the growth of the parasite permitted a 61,000-fold cumulative dilution of the original inoculum. After 5 weeks in culture, the parasites were still infective to the monkey Saimiri sciureus and to Anopheles freeborni mosquitoes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nguyen-Dinh, P -- Campbell, C C -- Collins, W E -- New York, N.Y. -- Science. 1980 Sep 12;209(4462):1249-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6773146" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Erythrocytes/*parasitology ; Haplorhini/*parasitology ; Larva ; Macaca/*parasitology ; Plasmodium/cytology/*growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 42
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-05
    Description: A 15,8-kilobase pair fragment of BALB/c mouse liver DNA, cloned in the Charon 4A lambda phage vector system, was shown to contain the mu heavy chain constant region (CHmu) gene for the mouse immunoglobulin M. In addition, this fragment of DNA contains at least two J genes, used to code for the carboxyl terminal portion of heavy chain variable regions. These genes are located in genomic DNA about eight kilobase pairs to the 5' side of the CHmu gene. The complete nucleotide sequence of a 1120-base pair stretch of DNA that includes the two J genes has been determined.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Newell, N -- Richards, J E -- Tucker, P W -- Blattner, F R -- New York, N.Y. -- Science. 1980 Sep 5;209(4461):1128-32.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6250219" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Base Sequence ; Binding Sites, Antibody/*genetics ; DNA Restriction Enzymes ; DNA, Recombinant ; Genes ; Genetic Linkage ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Variable Region/*genetics ; Immunoglobulin mu-Chains/*genetics ; Mice
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 43
    Publication Date: 1980-01-04
    Description: The activity of cyanide-sensitive, Cu-Zn superoxide dismutase (SOD) was studied in liver sytosols from H-2 congenic strains of mice. Higher SOD activity was found in livers of mice having H-2b/A.BY, B10, and C3H.SW/haplotypes than in those of H-2a, H-2k and H-2d haplotypes. Segregation studies supported these correlations. In H-2 recombinant strains of mice, the genes influencing the liver SOD activity occur, as ascertained by mapping techniques, at or near the H-2d region of the major histocompatibility complex.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Novak, R -- Bosze, Z -- Matkovics, B -- Fachet, J -- New York, N.Y. -- Science. 1980 Jan 4;207(4426):86-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7350646" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Evolution ; Genes ; Genes, Regulator ; Genetic Linkage ; H-2 Antigens/*genetics ; Liver/enzymology ; *Major Histocompatibility Complex ; Mice ; Superoxide Dismutase/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 44
    Publication Date: 1980-07-25
    Description: Accurate measurements of intracellular calcium activities in salivary gland epithelial cells of the insect Phormia regina were obtained with microelectrodes in which N,N'-di(11-ethoxycarbonyl)undecyl-N,N'-4,5-tetramethyl-3,6-dioxaoctane diacid diamide wsa incorporated in a liquid membrane system. When calibrated in solutions approximating the ionic concentration of the cell interior, these microelectrodes gave rapid stable responses that were linear functions of the logarithm of calcium activities and were not affected by potassium, sodium and magnesium. Continuous monitoring of calcium activities during serotonin-induced saliva release provided direct evidence of hormonal influence on transmembrane calcium movement and spontaneous regulation of intracellular calcium by stimulated cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉O'Doherty, J -- Youmans, S J -- Armstrong, W M -- Stark, R J -- New York, N.Y. -- Science. 1980 Jul 25;209(4455):510-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7394518" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport/drug effects ; Calcium/*metabolism ; Diptera/*metabolism ; Epithelium/metabolism ; Kinetics ; Magnesium/pharmacology ; Microelectrodes ; Salivary Glands/drug effects/*metabolism ; Serotonin/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 45
    Publication Date: 1980-10-31
    Description: Hybrid cells formed between human lymphocytes and mouse myeloma cells produce human immunoglobulin in culture. Stable antibody-producing cell lines can be isolated after multiple cycles of low-density passage, cloning, and continued selection for immunoglobulin production. The origin and characteristics of a hybrid of human and mouse cells is described. This hybrid produces high concentrations (8.3 micrograms per milliliter) of human immunoglobulin M reactive with the terminal disaccharide of the Forssman glycolipid. These findings point to the potential use of human-mouse hybrid cells as a source of human monoclonal antibodies for therapeutic and diagnostic purposes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nowinski, R -- Berglund, C -- Lane, J -- Lostrom, M -- Bernstein, I -- Young, W -- Hakomori, S I -- Hill, L -- Cooney, M -- New York, N.Y. -- Science. 1980 Oct 31;210(4469):537-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423202" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibodies ; Antibody Formation ; Antibody Specificity ; Cells, Cultured ; Clone Cells/immunology ; *Forssman Antigen ; Humans ; Hybrid Cells/immunology ; Immunoglobulin M/biosynthesis ; Mice
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 46
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-09-19
    Description: Mutants of animal viruses can be isolated in bacteria by recombinant DNA methods. Since no viral functions are required for propagation of recombinants in bacteria, viral mutants with lethal changes in cis- or trans-acting elements can be isolated, as well as partially or conditionally defective mutants. In the cases of viruses with small DNA genomes, such as the tumorigenic simian virus 40 (SV40), the entire viral DNA can be inserted into the bacterial plasmid pBR322 and cloned in Escherichia coli. Recombinant plasmids with a single copy of SV40 DNA cause morphological transformation of mouse cells in culture with the same efficiency as SV40 DNA isolated from virus-infected monkey cells, but the recombinant DNA is noninfectious and replicates poorly in permissive cells. However, SV40 DNA excised from the plasmid replicates as well as authentic viral DNA and is fully infectious. SV40 mutants with small deletions or base substitutions have been isolated by in vitro site-specific or random local mutagenesis of recombinant DNA followed by cloning in E. coli. Many of the mutants thus isolated are defective in specific viral functions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peden, K W -- Pipas, J M -- Pearson-White, S -- Nathans, D -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1392-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6251547" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Neoplasm/*genetics ; Antigens, Viral/genetics ; Cell Transformation, Viral ; Cells, Cultured ; Chromosome Deletion ; DNA, Recombinant ; DNA, Viral/*genetics ; Escherichia coli ; *Mutation ; Simian virus 40/*genetics ; Viral Proteins/*genetics ; Virus Replication
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 47
    Publication Date: 1980-09-19
    Description: Transformation, or DNA-mediated gene transfer, permits the introduction of new genetic information into a cell and frequently results in a change in phenotype. The transforming DNA is ultimately integrated into a recipient cell chromosome. No unique chromosomal locations are apparent, different lines contain the transforming DNA on different chromosomes. Expression of transformed genes frequently results in the synthesis of new polypeptide products which restore appropriate mutant cells to the wild-type phenotype. Thus transformation provides an in vivo assay for the functional role of DNA sequence organization about specific genes. Transforming genes coding for selectable functions, such as adenine phosphoribosyltransferase or thymidine kinase, have now been isolated by utilizing transformation in concert with molecular cloning. Finally, transformation may provide a general approach to the analysis of complex heritable phenotypes by permitting the distinction between phenotypic changes without concomitant changes in DNA and functional genetic rearrangements.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pellicer, A -- Robins, D -- Wold, B -- Sweet, R -- Jackson, J -- Lowy, I -- Roberts, J M -- Sim, G K -- Silverstein, S -- Axel, R -- CA 16346/CA/NCI NIH HHS/ -- CA 17477/CA/NCI NIH HHS/ -- CA 23767/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1414-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7414320" target="_blank"〉PubMed〈/a〉
    Keywords: Adenine Phosphoribosyltransferase/*genetics ; Cloning, Molecular/methods ; DNA/*genetics ; *DNA, Recombinant ; Genes ; Genotype ; Mutation ; Pentosyltransferases/*genetics ; Phenotype ; Recombination, Genetic ; Selection, Genetic ; Thymidine Kinase/*genetics ; *Transformation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 48
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-04-11
    Description: The activities of cyclic nucleotide phosphohydrolase, an enzyme marker for oligodendrocytes, and glutamine synthetase, an enzyme marker for astrocytes, were studied at early (21 to 26) and late (82 to 88) cell passages. The activity of cyclic nucleotide phosphohydrolase was markedly high and that of glutamine synthetase was low in the early passages, but this relation was reversed in the late passages. These findings suggest a "transdifferentiation" of C6 glial cells with passage in culture.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parker, K K -- Norenberg, M D -- Vernadakis, A -- New York, N.Y. -- Science. 1980 Apr 11;208(4440):179-81.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6102413" target="_blank"〉PubMed〈/a〉
    Keywords: 2',3'-Cyclic-Nucleotide Phosphodiesterases/metabolism ; Animals ; Astrocytes/enzymology ; *Cell Differentiation ; Cells, Cultured ; Glutamate-Ammonia Ligase/metabolism ; Neuroglia/*enzymology ; Oligodendroglia/enzymology ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 49
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-11-21
    Description: The rate at which glucose enters nerve terminals in muscle was estimated indirectly by measuring changes in miniature end-plate potential frequency D-Glucose entered nerve terminals in muscles with a fast twitch more rapidly than it entered those with a slow twitch. This suggests that nerve terminals in fast- and slow-twitch muscles differ in their rate of metabolism.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Pickett, J B -- New York, N.Y. -- Science. 1980 Nov 21;210(4472):927-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7434009" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; Diaphragm/innervation ; Glucose/*metabolism ; Kinetics ; Membrane Potentials ; Nerve Endings/*metabolism ; Neuromuscular Junction/*metabolism ; Osmolar Concentration ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 50
    Publication Date: 1980-08-29
    Description: Several subpopulations of cells were isolated from trypsin-dissociated embryonic (14 days) chick retinas. The cells of each subpopulation differed in associative behavior measured by cell aggregation and stationary culture assays and in glycoproteins that contain glucosamine. Freeze-fracture analysis showed that these populations also differed in intramembrane particle content.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sheffield, J B -- Pressman, D -- Lynch, M -- New York, N.Y. -- Science. 1980 Aug 29;209(4460):1043-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7403867" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion ; Cell Fractionation/methods ; Cell Membrane/ultrastructure ; Cells, Cultured ; Chick Embryo ; Membrane Proteins/metabolism ; Retina/cytology/*embryology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 51
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1980-11-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sun, M -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):618.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6159683" target="_blank"〉PubMed〈/a〉
    Keywords: Cells, Cultured ; Drug Industry ; Fibroblasts/metabolism ; Humans ; Interferons/*biosynthesis ; Male ; National Institutes of Health (U.S.) ; Research Support as Topic ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 52
    Publication Date: 1980-05-30
    Description: The expression of human esterase D was evaluated quantitatively and qualitatively in five persons with partial deletions or duplications of chromosome 13. The results showed that the locus of this enzyme is at band 13q14. Deletion of this same band in other subjects has been found previously to indicate a predisposition to the development of retinoblastoma, which was present in the four individuals in this study who had partial deletions of chromosome 13. Because of this close synteny, esterase D evaluation should aid in the diagnosis and genetic counseling of retinoblastoma.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sparkes, R S -- Sparkes, M C -- Wilson, M G -- Towner, J W -- Benedict, W -- Murphree, A L -- Yunis, J J -- New York, N.Y. -- Science. 1980 May 30;208(4447):1042-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7375916" target="_blank"〉PubMed〈/a〉
    Keywords: Chromosome Deletion ; Chromosome Mapping ; *Chromosomes, Human, 13-15 ; Esterases/*genetics ; Female ; Genes ; Humans ; Intellectual Disability/enzymology/genetics ; Male ; Retinoblastoma/enzymology/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 53
    Publication Date: 1980-09-19
    Description: Many eukaryotic genes contain intevening sequences, segments of DNA that interrupt the continuity of the gene. They are removed from RNA transcripts of the gene by a process known as splicing. The intervening sequence in a yeast tyrosine transfer RNA (tRNA Tyr) suppressor gene was deleted in order to test its role in the expression of the gene. The altered gene and its parent were introduced into yeast by transformation. Both genes exhibited suppressor function, showing that the intervening sequence is not absolutely essential for the expression of this gene.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wallace, R B -- Johnson, P F -- Tanaka, S -- Schold, M -- Itakura, K -- Abelson, J -- CA10984/CA/NCI NIH HHS/ -- GM 26391/GM/NIGMS NIH HHS/ -- GM 35658/GM/NIGMS NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1980 Sep 19;209(4463):1396-400.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6997991" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Chromosome Deletion ; DNA, Recombinant ; Genes ; Mutation ; Nucleic Acid Precursors/genetics ; Plasmids ; RNA, Fungal/*genetics ; RNA, Transfer/*genetics ; Saccharomyces cerevisiae/genetics ; Suppression, Genetic ; Tyrosine
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 54
    Publication Date: 1980-08-22
    Description: The binding of [6-alanine]gonadotropin-releasing hormone to pituitary plasma membranes increased threefold between metestrus and early proestrus in female rats. Receptor numbers fell rapidly on the afternoon of proestrus coincident with the preovulatory gonadotropin surge. The numbers of receptors for gonadotropin-releasing hormone were positively correlated with concentrations of estradiol in serum; this pattern may be a necessary component of increased pituitary sensitivty to gonadotropin-releasing hormone observed during proestrus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Savoy-Moore, R T -- Schwartz, N B -- Duncan, J A -- Marshall, J C -- New York, N.Y. -- Science. 1980 Aug 22;209(4459):942-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6250218" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Membrane/metabolism ; Estradiol/blood ; *Estrus ; Feedback ; Female ; Follicle Stimulating Hormone/blood ; Gonadotropin-Releasing Hormone/analogs & derivatives/*metabolism ; Kinetics ; Luteinizing Hormone/blood ; Pituitary Gland, Anterior/*metabolism ; Pregnancy ; Progesterone/blood ; Rats ; Receptors, Cell Surface/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 55
    Publication Date: 1980-11-07
    Description: Monolayer cultures of rat aorta smooth muscle cells synthesized the anti-aggregatory substance prostacyclin via the cyclooxygenase pathway from 14C-labeled arachidonic acid. The product was identified both by bioassay and by mass spectrometry. Labeled cells produced prostacyclin only when exposed to the initiator thrombin: treatment with therapeutic concentrations of aspirin (0.2 millimolar) for 30 minutes completely destroyed the cells' ability to synthesize prostacyclin. Prostacyclin synthesis from exogenous arachidonic acid recovered fully within 1 to 2 hours by a cycloheximide-sensitive process. Thrombin responsivness, which was permanently impaired in confluent nondividing cultures, recovered substantially and within 24 hours only when cells were stimulated to divide by subculturing. These results indicate that resting vascular cells can rapidly synthesize new cyclooxygenase, but that aspirin destroys additional components of the prostacyclin system which can only be replaced during cell division.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Whiting, J -- Salata, K -- Bailey, J M -- New York, N.Y. -- Science. 1980 Nov 7;210(4470):663-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6776627" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta/*drug effects ; Arachidonic Acids/metabolism ; Aspirin/*pharmacology ; Cells, Cultured ; Cyclooxygenase Inhibitors ; Epoprostenol/*biosynthesis ; Muscle, Smooth/drug effects ; Prostaglandins/*biosynthesis ; Rats ; Thrombin/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 56
    Publication Date: 1980-10-17
    Description: The genotoxicity of the antihypertensive agents hydralazine and dihydralazine was tested in mammalian cells and bacteria. Both drugs elicited DNA repair in rat hepatocyte primary cultures. In the Ames test, both with and without an S-9 fraction, hydralazine was mutagenic in strains TA100 and TA1537, whereas dihydralazine was weakly mutagenic in strain TA1537. These findings support the observation that hydralazine is carcinogenic in mice. The carcinogenicity of many chemicals results from interaction with DNA. Since these studies demonstrate that hydralazine and dihydralazine damage DNA in mammalian cells, these drugs should be viewed as potential human carcinogens.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Williams, G M -- Mazue, G -- McQueen, C A -- Shimada, T -- N 01-CP-55705/CP/NCI NIH HHS/ -- New York, N.Y. -- Science. 1980 Oct 17;210(4467):329-30.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7423193" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Biotransformation ; *Carcinogens ; Cells, Cultured ; DNA Repair/*drug effects ; Dihydralazine/*toxicity ; Dose-Response Relationship, Drug ; Drug Evaluation, Preclinical ; Hydralazine/*analogs & derivatives/*toxicity ; Liver/metabolism ; *Mutagens ; Rats ; Salmonella typhi/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 57
    Publication Date: 1980-01-11
    Description: A strain of type 2 human rotavirus (Wa) was grown to relatively high titer through 14 passages in primary cultures of African green monkey kidney (AGMK) cells. This passage series was initiated with virus that had been passaged 11 times serially in newborn gnotobiotic piglets. In contrast, virus present in the stool of patient Wa as well as virus from the first, second, or third passage in piglets could not be propagated successfully in African green monkey kidney cells. Prior to each passage in cell culture, the virus was treated with trypsin and the inoculated cultures were centrifuged at low speed. Cultivation of a type 2 human rotavirus should aid attempts to characterize this virus and to develop a means of immunoprophylaxis for a serious diarrheal disease of human infants.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wyatt, R G -- James, W D -- Bohl, E H -- Theil, K W -- Saif, L J -- Kalica, A R -- Greenberg, H B -- Kapikian, A Z -- Chanock, R M -- New York, N.Y. -- Science. 1980 Jan 11;207(4427):189-91.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6243190" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens, Viral/analysis ; Cells, Cultured ; Diarrhea, Infantile/microbiology ; Germ-Free Life ; Haplorhini ; Humans ; Infant ; RNA Viruses/*growth & development ; Rotavirus/*growth & development/immunology ; Swine
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 58
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-09-25
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Dausset, J -- New York, N.Y. -- Science. 1981 Sep 25;213(4515):1469-74.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6792704" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Surface/genetics ; Forecasting ; Genes ; Genes, MHC Class II ; Genetic Linkage ; HLA Antigens/genetics ; Humans ; Immune Tolerance ; Immunity, Cellular ; *Major Histocompatibility Complex ; Polymorphism, Genetic ; Transplantation Immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 59
    Publication Date: 1981-07-31
    Description: Benzodiazepines inhibit Ca2+-calmodulin-stimulated membrane protein phosphorylation. The effects of the benzodiazepines on protein phosphorylation are stereospecific and produced by membrane-bound benzodiazepine. The potency of benzodiazepine kinase inhibition is correlated with the ability of the benzodiazepines to inhibit electric shock-induced convulsions. These findings provide evidence that some of the anticonvulsant and neuronal stabilizing effects of benzodiazepines may be modulated by the Ca2+-calmodulin protein kinase system and indicate that this calmodulin-kinase system represents an identifiable benzodiazepine receptor in brain that is distinquishable by several criteria from the previously described high affinity benzodiazepine receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉DeLorenzo, R J -- Burdette, S -- Holderness, J -- NS 1352/NS/NINDS NIH HHS/ -- NSI-EA-1-K04-NS245/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):546-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6264605" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzodiazepines/metabolism ; Brain/*enzymology ; Calcium/*pharmacology ; Calcium-Binding Proteins/*pharmacology ; Calmodulin/*pharmacology ; Cell Membrane/enzymology ; Chlordiazepoxide/*pharmacology ; Diazepam/*pharmacology ; Enzyme Activation ; Kinetics ; Molecular Weight ; Phosphorylation ; Protein Kinases/*metabolism ; Rats ; Receptors, Drug/metabolism ; Receptors, GABA-A
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 60
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Evans, C H -- Tew, W P -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):653-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256262" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cations ; *Erbium ; Kinetics ; *Magnetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 61
    Publication Date: 1981-04-03
    Description: Human malignant cancer tumors grafted into nude mice produce tumors containing both human cancer cells and the host's stromal cells. After short-term propagation of these tumors in vitro, the murine mesenchymal cells appear transformed and are tumorigenic in nude mice. However, established human cancer cell lines fail to similarly after adjacent murine stromal cells when used to produce tumors in nude mice. These experiments suggest that cancer cells may recruit normal cells to become malignant, qualifying the view of the clonal (unicellular) origin of cancer.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Goldenberg, D M -- Pavia, R A -- 1R01 CA17198/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):65-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209521" target="_blank"〉PubMed〈/a〉
    Keywords: Adenocarcinoma/pathology ; Animals ; Cell Line ; Cells, Cultured ; Colonic Neoplasms/pathology ; Fibrosarcoma/*etiology ; Humans ; Karyotyping ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Middle Aged ; Neoplasm Transplantation ; Neoplasms, Experimental/*etiology ; Transplantation, Heterologous
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 62
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-06-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gonzalez, M F -- Deutsch, J A -- New York, N.Y. -- Science. 1981 Jun 12;212(4500):1283-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233218" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Feeding Behavior ; Kinetics ; Male ; Rats ; *Satiation ; *Satiety Response ; Stomach/*physiology ; *Vagotomy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 63
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-04-03
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Furcinitti, P S -- Todd, P -- New York, N.Y. -- Science. 1981 Apr 3;212(4490):6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7209518" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Survival/*radiation effects ; Cells, Cultured ; Dose-Response Relationship, Radiation ; HeLa Cells/radiation effects ; Humans
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 64
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-10-23
    Description: Voltage clamp studies of macrophages from cultures of mouse spleen macrophages produced N-shaped steady-state current-voltage curves containing a region of negative slope resistance. Some macrophages exhibit two stable states of membrane potential, having current-voltage relationships that cross the voltage axis at three points. Outward currents that turn on at voltages of +15 millivolts or greater were noted in several cells. The addition of barium chloride to the bathing medium abolished the negative slope resistance and reduced the inward currents in response to hyperpolarizing voltage steps. These data provide direct evidence that macrophages exhibit at least tow different voltage-dependent conductances and demonstrate that voltage clamp techniques can be useful in studying the membrane properties of leukocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gallin, E K -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):458-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7291986" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Barium/pharmacology ; Cell Membrane/physiology ; Cells, Cultured ; Electric Conductivity ; Macrophages/*physiology ; Membrane Potentials ; Mice ; Spleen/cytology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 65
    Publication Date: 1981-12-04
    Description: The persistence of synthetic herbicides such as 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) and its release in massive amounts as a herbicide (Agent Orange) have created toxicological problems in many countries. In nature, 2,4,5-T is slowly degraded by cooxidation and is not utilized as a sole source of carbon and energy. The technique of plasmid-assisted molecular breeding has led to the development of bacterial strains capable of totally degrading 2,4,5-T by using it as their sole source of carbon at high concentrations (greater than 1 mg/ml). Spectrophotometry and gas chromatography reveal various intermediates during growth of the culture with 2,4,5-T.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kellogg, S T -- Chatterjee, D K -- Chakrabarty, A M -- New York, N.Y. -- Science. 1981 Dec 4;214(4525):1133-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7302584" target="_blank"〉PubMed〈/a〉
    Keywords: 2,4,5-Trichlorophenoxyacetic Acid/*metabolism ; Bacteria/*genetics/metabolism ; Biotransformation ; Cell Division ; Kinetics ; Nucleic Acid Hybridization ; *Plasmids
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 66
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-10-23
    Description: The addition of ethanol or other aliphatic alcohols to rat brain membranes strongly inhibits binding of enkephalins at concentrations at which little inhibition of opiate alkaloids is seen. Inhibition is reversible, and potency increases with chain length of the alcohol. The results suggest that delta receptors are considerably more sensitive to alcohols than mu receptors. This is the first demonstration of selective inhibition of one of the postulated classes of opiate receptors by a reagent that is not a ligand for the receptor.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hiller, J M -- Angel, L M -- Simon, E J -- DA-00017/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 1981 Oct 23;214(4519):468-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6270788" target="_blank"〉PubMed〈/a〉
    Keywords: Alcohols/*pharmacology ; Animals ; Brain/metabolism ; Cells, Cultured ; In Vitro Techniques ; Neuroblastoma/metabolism ; Rats ; Receptors, Opioid/classification/*drug effects/metabolism ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 67
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-08-07
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lewin, R -- New York, N.Y. -- Science. 1981 Aug 7;213(4508):634-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7256261" target="_blank"〉PubMed〈/a〉
    Keywords: *Biological Evolution ; DNA/*genetics ; Genes ; Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 68
    Publication Date: 1981-06-05
    Description: Two divalent cation ionophores, A23187 and Ionomycin, which are selective for calcium, stimulated the resorption of fetal rat long bones in organ culture at 0.1 to 1 micromolar but not at higher concentrations. Both agents inhibited DNA synthesis at concentrations that stimulated resorption. These results might explain the differences in ionophore effects on bone previously reported, and they imply that cell replication is not required for osteoclast formation in fetal rat long bone cultures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lorenzo, J A -- Raisz, L G -- AM 07290/AM/NIADDK NIH HHS/ -- AM 18063/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1981 Jun 5;212(4499):1157-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6785885" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anti-Bacterial Agents/*pharmacology ; Bone Resorption/*drug effects ; Bone and Bones/drug effects/*metabolism ; Calcimycin/*pharmacology ; Calcium/metabolism ; Calcium Radioisotopes ; Cells, Cultured ; DNA/*biosynthesis ; DNA Replication/*drug effects ; Ethers/pharmacology ; Fetus ; Ionomycin ; Ionophores/pharmacology ; Kinetics ; Mice ; Parathyroid Hormone/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 69
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-31
    Description: A loss in the number of functional, sodium ion-dependent, high-affinity choline transport sites was observed in the cortex and hippocampus of mice given an intracerebroventricular injection of 65 nanomoles of AF64A (ethylcholine mustard aziridinium ion) 3 days earlier. Such an effect was not observed in the striatum. This effect of AF64A represents a long-term neurochemical deficit at cholinergic nerve terminals in some brain regions which can lead to a persistent deficiency in central cholinergic transmission. The AF64A-treated animal may thus be a model for certain psychiatric or neurological disorders that appear to involve central cholinergic hypofunction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mantione, C R -- Fisher, A -- Hanin, I -- MH 26320/MH/NIMH NIH HHS/ -- MH/AG 34893/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):579-80.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6894649" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aziridines/*pharmacology ; Azirines/*pharmacology ; Biological Transport/drug effects ; Brain/drug effects/*metabolism ; Cerebral Cortex/metabolism ; Choline/*analogs & derivatives/*metabolism/pharmacology ; Corpus Striatum/metabolism ; Hippocampus/metabolism ; Kinetics ; Mice ; Sodium/pharmacology ; Synaptosomes/drug effects/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 70
    Publication Date: 1981-05-01
    Description: The kinetic patterns of DNA synthesis in wild-type (RAD+) and rad 52 mutants of yeast, which exhibit high levels of synchrony during meiosis, are comparable. However, RAD 52 mutants accumulate single-strand breaks in parental DNA during the DNA synthesis period. Thus, the product of the RAD 52 gene has a role in meiotic DNA metabolism, as well as in the repair of DNA damage during mitotic growth. The observed breaks may be unresolved recombination intermediates.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Resnick, M A -- Kasimos, J N -- Game, J C -- Braun, R J -- Roth, R M -- 5 R01 GM17317-11/GM/NIGMS NIH HHS/ -- S07-RR07027/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 1981 May 1;212(4494):543-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7010606" target="_blank"〉PubMed〈/a〉
    Keywords: *DNA Repair ; DNA, Fungal/genetics ; DNA, Single-Stranded/genetics ; Genes ; *Meiosis ; Molecular Weight ; Mutation ; *Recombination, Genetic ; Saccharomyces cerevisiae/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 71
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-31
    Description: During normal development of the hamster eye, there is a substantial loss of cells from the retinal ganglion cell layer in the first two postnatal weeks. If one eye is lost at birth, this cell death is reduced in the remaining eye. This may account for the increased ipsilateral projection from this eye to the thalamus and midbrain observed in these animals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sengelaub, D R -- Finlay, B L -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):573-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7244655" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Animals, Newborn ; Cell Survival ; Cricetinae ; Kinetics ; Neurons/*physiology ; Rats ; Retina/cytology/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 72
    Publication Date: 1981-07-31
    Description: Erythrocytes infected with the late stages of the human malarial parasite Plasmodium falciparum became attached to a subpopulation of cultured human endothelial cells by knoblike protrusions on the surface of the infected erythrocytes. Infected erythrocytes did not bind to cultured fibroblasts; uninfected erythrocytes did not bind to either endothelial cells or fibroblasts. The results suggest a specific receptor-ligand interaction between endothelial cells and a component, components, in the knobs of the infected erythrocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Udeinya, I J -- Schmidt, J A -- Aikawa, M -- Miller, L H -- Green, I -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):555-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7017935" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aotus trivirgatus ; Cells, Cultured ; Endothelium/microbiology ; Erythrocytes/*microbiology/ultrastructure ; Female ; Humans ; Microscopy, Electron ; Plasmodium falciparum/*pathogenicity ; Pregnancy ; Umbilical Veins
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 73
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-17
    Description: Bee venom and phospholipase A2 extracted from bee venom enhanced guanylate cyclase (E.C. 4.6.1.2) activity two- to threefold in rat liver, lung, heart, kidney, ileum, and cerebellum. Dose-response relationships revealed that bee venom at concentrations as low as 1 microgram per milliliter and phospholipase A2 at 1 microunit per milliliter caused a maximal enhancement of guanylate cyclase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Vesely, D L -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):359-60.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6113689" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bee Venoms/*pharmacology ; Dose-Response Relationship, Drug ; Enzyme Activation ; Guanylate Cyclase/*metabolism ; Kinetics ; Organ Specificity ; Phospholipases/*pharmacology ; Phospholipases A/*pharmacology ; Phospholipases A2 ; Rats
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 74
    Publication Date: 1981-07-17
    Description: Guanosine triphosphate cyclohydrolase, the enzyme that is apparently rate-limiting in biopterin biosynthesis, is increased in adrenal cortex and medulla of rats treated with insulin or reserpine. Denervation and hypophysectomy block the increase in medullary and cortical enzyme activity, respectively, whereas cycloheximide presents the increase in both tissues. These results provide evidence for induction and regulation of guanosine triphosphate cyclohydrolase.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Viveros, O H -- Lee, C L -- Abou-Donia, M M -- Nixon, J C -- Nichol, C A -- New York, N.Y. -- Science. 1981 Jul 17;213(4505):349-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7017928" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenal Cortex/drug effects/*enzymology ; Adrenal Glands/innervation ; Adrenal Medulla/drug effects/*enzymology ; Aminohydrolases/*metabolism ; Animals ; Biopterin/*biosynthesis ; Cycloheximide/pharmacology ; Denervation ; GTP Cyclohydrolase/*metabolism ; Hypophysectomy ; Insulin/pharmacology ; Kinetics ; Male ; Organ Specificity ; Pteridines/*biosynthesis ; Rats ; Reserpine/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 75
    Publication Date: 1981-05-15
    Description: In this study the hormonal requirements for the growth of arterial smooth muscle cells in vitro were determined. A serum-free, biochemically defined medium, supplemented with the relevant hormones, permitted proliferation and propagation of normal diploid mammalian arterial smooth muscle cells. Serum-free, hormone-supplemented cultures spontaneously formed atherosclerotic plaque-like nodules. Thus atherosclerosis may be mediated by a complex endocrine system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weinstein, R -- Stemerman, M B -- Maciag, T -- AM 07026/AM/NIADDK NIH HHS/ -- HL 06197/HL/NHLBI NIH HHS/ -- HL 07374/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1981 May 15;212(4496):818-20.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7013068" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aorta, Abdominal/cytology ; Cell Division/drug effects ; Cells, Cultured ; Culture Media ; Growth Substances/pharmacology ; Hormones/*pharmacology ; Insulin/pharmacology ; Muscle, Smooth, Vascular/*cytology ; Rats ; Transferrin/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 76
    Publication Date: 1981-03-06
    Description: Kinetic analysis of the uptake of carbon-14-labeled oleate in a single-pass perfusion of rat liver and saturable and specific binding of iodine-125-labeled albumin to hepatocytes in suspension suggest the existence of a receptor for albumin on the liver cell surface. The putative receptor appears to mediate uptake of albumin-bound fatty acids by the cell and may account for the efficient hepatic extraction of many other substances tightly bound to albumin.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weisiger, R -- Gollan, J -- Ockner, R -- AM-07007/AM/NIADDK NIH HHS/ -- AM-13328/AM/NIADDK NIH HHS/ -- AM-21899/AM/NIADDK NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1981 Mar 6;211(4486):1048-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6258226" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biological Transport ; Fatty Acids/*metabolism ; Female ; Kinetics ; Liver/*metabolism ; Oleic Acids/metabolism ; Protein Binding ; Rats ; Receptors, Albumin ; Receptors, Cell Surface/*metabolism ; Serum Albumin/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 77
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-02-06
    Description: Native DNA from sea urchin embryos contains single-stranded regions (gaps) of up to 3000 nucleotides. The longer gaps (more than 1400 nucleotides) are nonrandomly distributed and are rich in histone gene sequences, other moderately repetitive sequences, and polypyrimidines. The shorter gaps are associated with DNA replication. A method for isolation of the two classes of single-stranded DNA pieces is reported.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wortzman, M S -- Baker, R F -- New York, N.Y. -- Science. 1981 Feb 6;211(4482):588-90.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7455698" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; *DNA Replication ; DNA, Single-Stranded/*analysis/genetics ; Genes ; Histones/*genetics ; Recombination, Genetic ; Sea Urchins/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 78
    Publication Date: 1981-07-24
    Description: Nalidixic acid and novobiocin inhibit the aminoacylation and pyrophosphate exchange activities of glycyl- and leucyl-transfer RNA synthetases from bakers' yeast. Similar types of inhibition are observed for both enzymes, suggesting similar mechanisms. The potency of these inhibitors is comparable to that observed for their inhibition of in vivo DNA synthesis in eukaryotic cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wright, H T -- Nurse, K C -- Goldstein, D J -- GM 07654/GM/NIGMS NIH HHS/ -- GM 23598/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1981 Jul 24;213(4506):455-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7017932" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acyl-tRNA Synthetases/*antagonists & inhibitors ; Glycine-tRNA Ligase/*antagonists & inhibitors ; Kinetics ; Leucine-tRNA Ligase/*antagonists & inhibitors ; Nalidixic Acid/*pharmacology ; Novobiocin/*pharmacology ; Oxolinic Acid/*pharmacology ; Saccharomyces cerevisiae/*enzymology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 79
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1981-07-31
    Description: An established line of mesenchymal cells from the human embryonic palate is highly sensitive to the stimulatory effect of epidermal growth factor on growth, labeled thymidine incorporation, and ornithine decarboxylase activity. The results suggest that epidermal growth factor may play a key role in development of various human embryonic and fetal tissues.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoneda, T -- Pratt, R M -- New York, N.Y. -- Science. 1981 Jul 31;213(4507):563-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7017936" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Division/drug effects ; Cell Line ; DNA Replication/drug effects ; Embryo, Mammalian ; Epidermal Growth Factor/*pharmacology ; Female ; Humans ; Insulin/pharmacology ; Kinetics ; Organ Specificity ; Ornithine Decarboxylase/metabolism ; Palate/drug effects/*physiology ; Peptides/*pharmacology ; Pregnancy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 80
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-07-16
    Description: A method has been developed for the measurement of intracellular free calcium in mammalian cells. The calcium-sensitive photoprotein aequorin can be incorporated into isolated cells by hypo-osmotic treatment without altering the cell viability, permeability, or metabolism. Intracellular calcium activity (Cai2+) was monitored in a perfusion system. In monkey kidney cells (LLC-MK2), Cai2+ is approximately 57 nanomoles per liter. Changes in Cai2+ with time can also be followed: exposure of the cells to anaerobiosis or the calcium ionophore A23187 reversibly increases Cai2+. The method has also been successfully tested in rat hepatocytes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Borle, A B -- Snowdowne, K W -- New York, N.Y. -- Science. 1982 Jul 16;217(4556):252-4.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6806904" target="_blank"〉PubMed〈/a〉
    Keywords: *Aequorin ; Anaerobiosis ; Animals ; Calcimycin/pharmacology ; Calcium/*metabolism ; Cell Line ; Kidney/drug effects/*metabolism ; Kinetics ; *Luminescent Proteins ; Macaca mulatta
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 81
    Publication Date: 1982-06-11
    Description: Receptors that selectively bind micromolar concentrations of benzodiazepines are present in rat brain membrane. These micromolar receptors exhibit saturable, stereospecific binding, and the potency of benzodiazepine binding to these receptors is correlated with the ability of the benzodiazepines to inhibit maximum electric shock-induced convulsions. Benzodiazepine receptors with nanomolar affinity differ from the micromolar receptors in their binding, kinetic, and pharmacologic characteristics. The micromolar receptors also bind phenytoin, a non-benzodiazepine anticonvulsant. These results provide evidence for a distinct class of clinically relevant benzodiazepine receptors that may regulate neuronal excitability and anticonvulsant activity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bowling, A C -- DeLorenzo, R J -- NS 1352/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jun 11;216(4551):1247-50.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6281893" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Benzodiazepines/*metabolism/pharmacology ; Benzodiazepinones/metabolism ; Brain/*metabolism ; Calmodulin/antagonists & inhibitors ; Diazepam/metabolism ; Kinetics ; Ligands ; Protein Kinase Inhibitors ; Rats ; Receptors, Drug/*metabolism ; Receptors, GABA-A ; Structure-Activity Relationship
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 82
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-11-05
    Description: Simple chemical catalysts have been designed to achieve some desirable features of enzymes. These novel catalysts are not proteins, but they may incorporate the typical enzyme catalytic groups and they achieve selectivity in their reactions by use of geometric control, as do enzymes. Catalysts that carry out geometrically controlled chlorinations of aromatic rings and steroids have been constructed. Other catalysts achieve the selective synthesis of amino acids, and still others imitate ribonuclease in detailed mechanism and hydrolyze RNA. Optimization of geometries has led to a rate acceleration of over 10(8) in one instance.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Breslow, R -- New York, N.Y. -- Science. 1982 Nov 5;218(4572):532-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123255" target="_blank"〉PubMed〈/a〉
    Keywords: Catalysis ; Cyclodextrins ; *Enzymes ; Kinetics ; Models, Chemical ; Ribonucleases ; Structure-Activity Relationship ; Substrate Specificity ; Transaminases
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 83
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-03-12
    Description: Brief tetanic stimulation of the preganglionic nerves to the superior cervical ganglion enhances the postganglionic response to single preganglionic stimuli for 1 to 3 hours. This long-term potentiation of transmission through the ganglion is apparently not attributable to a persistent muscarinic action of the preganglionic neurotransmitter, acetylcholine, since neither the magnitude nor the time course of the phenomenon is reduced by atropine. The decay of long-term potentiation can be described by a first-order kinetic process with a mean time constant of 80 minutes. We conclude that long-term potentiation, once considered a unique property of the hippocampus, is in fact a more general feature of synaptic function. This form of synaptic memory may significantly influence information processing and control in other regions of the nervous system, including autonomic ganglia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Brown, T H -- McAfee, D A -- 12116/PHS HHS/ -- NS 16576/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 12;215(4538):1411-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6278593" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ganglia, Sympathetic/*physiology ; Kinetics ; Learning/*physiology ; Neuronal Plasticity ; Rats ; Synapses/*physiology ; *Synaptic Transmission ; Time Factors
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 84
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-08-06
    Description: Depletion of glutathione in Chinese hamster ovary cells in vitro by diethyl maleate resulted in enhancement of the effect of x-rays on cell survival under hypoxic conditions but not under oxygenated conditions. Hypoxic EMT6 tumor cells were similarly sensitized in vivo. The action of diethyl maleate is synergistic with the effect of the electron-affinic radiosensitizer misonidazole, suggesting that the effectiveness of misonidazole in cancer radiotherapy may be improved by combining it with drugs that deplete intracellular glutathione.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bump, E A -- Yu, N Y -- Brown, J M -- CA-15201/CA/NCI NIH HHS/ -- CM-87207/CM/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 6;217(4559):544-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089580" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Anoxia ; Cell Survival/drug effects/*radiation effects ; Cells, Cultured ; Cricetinae ; Cricetulus ; Drug Synergism ; Glutathione/*metabolism ; Maleates/administration & dosage ; Mice ; Mice, Inbred BALB C ; Misonidazole/administration & dosage ; Neoplasms, Experimental/metabolism ; *Oxygen Consumption
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 85
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-07-02
    Description: The rat hippocampal formation was tested for the presence of factors that would accelerate neurite extension from chick parasympathetic (ciliary ganglion) or sympathetic (lumbar chain) neurons in vitro. Two growth factors were identified in extracts of this brain region. One accelerated neurite extension from sympathetic neurons and was blocked by antiserum to nerve growth factor. The other accelerated neurite extension from parasympathetic neurons but was not affected by the antiserum. These results suggest that specific growth factors account for the specificity of neuronal sprouting.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Crutcher, K A -- Collins, F -- NS 17131/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Jul 2;217(4554):67-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7089542" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Axons/physiology ; Cells, Cultured ; Chick Embryo ; Ganglia, Parasympathetic/physiology ; Ganglia, Sympathetic/physiology ; Growth Substances/*physiology ; Hippocampus/*physiology ; Neurons/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 86
    Publication Date: 1982-11-05
    Description: Receptors for maleylated or acetylated proteins as well as for alpha-2-macroglobulin-protease complexes on macrophages serve as scavengers by mediating the uptake of macromolecules from the extracellular compartment. Described in this report is a novel function of these receptors on macrophages: regulation of neutral protease secretion. The binding of maleylated bovine serum albumin to macrophages triggered secretion of three neutral proteases: neutral caseinases, plasminogen activator, and cytolytic proteinase. Release of acid phosphatase, however, was not induced. An important biological consequence of protease secretion by macrophages, tumor-cytolysis, was also triggered by engagement of the receptor for maleylated bovine serum albumin. By contrast, the binding of alpha-2-macroglobulin-protease complexes to the macrophages suppressed secretion of all three proteases. Thus two receptors heretofore believed to serve principally as scavengers also regulate secretory functions of macrophages.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Johnson, W J -- Pizzo, S V -- Imber, M J -- Adams, D O -- New York, N.Y. -- Science. 1982 Nov 5;218(4572):574-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6289443" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Glycoproteins/*metabolism ; Macrophages/*enzymology ; *Metalloendopeptidases ; Mice ; Peptide Hydrolases/*secretion ; Plasminogen Activators/secretion ; Receptors, Cell Surface/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 87
    Publication Date: 1982-10-01
    Description: Studies of isolated islets labeled with radioactive leucine show that glucose at a critical time "marks" islets in such a way as to cause preferential release of newly synthesized insulin. The preferential release of insulin from marked islets is relatively independent of subsequent secretagogues or rates of insulin secretion. Previous kinetic studies have indicated that the critical time at which marking occurs is after proinsulin biosynthesis but before the secretory event. Thus, secretory cells may regulate the diversion of newly synthesized material for immediate release as it is approaching or transiting the Golgi apparatus.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gold, G -- Gishizky, M L -- Grodsky, G M -- AM 01410/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 1;218(4567):56-8.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6181562" target="_blank"〉PubMed〈/a〉
    Keywords: 1-Methyl-3-isobutylxanthine/pharmacology ; Animals ; Glucose/*pharmacology ; In Vitro Techniques ; Insulin/biosynthesis/*secretion ; Islets of Langerhans/drug effects/*secretion ; Kinetics ; Leucine ; Potassium/pharmacology ; Tolbutamide/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 88
    Publication Date: 1982-10-01
    Description: Rats rotated to the left when 5'-N-ethylcarboxamide adenosine (NECA) was injected into the left caudate nucleus and apomorphine was administered subcutaneously. The combination of NECA and apomorphine was more potent than L-(phenylisopropyl)adenosine and apomorphine in eliciting rotation, suggesting the involvement of adenosine receptors of the Ra type. The response was reduced when 2',5'-dideoxyadenosine was injected along with NECA into the caudate nucleus or when theorphylline was given intraperitoneally. Higher doses of apomorphine elicited a self-mutilatory response after the injection of NECA into the caudate nucleus. These results suggest that adenosine may be involved in the modulation of dopaminergic function in the striatum.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Green, R D -- Proudfit, H K -- Yeung, S M -- New York, N.Y. -- Science. 1982 Oct 1;218(4567):58-61.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7123218" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine/administration & dosage/*analogs & derivatives/pharmacology ; Adenosine-5'-(N-ethylcarboxamide) ; Animals ; Apomorphine/pharmacology ; Caudate Nucleus/*physiology ; Corpus Striatum/*physiology ; Dopamine/*physiology ; Injections ; Kinetics ; Male ; Motor Activity/drug effects ; Rats ; Rats, Inbred Strains ; Rotation ; Vasodilator Agents/*pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 89
    Publication Date: 1982-04-16
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kirsch, I R -- Morton, C C -- Nakahara, K -- Leder, P -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):301-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801764" target="_blank"〉PubMed〈/a〉
    Keywords: B-Lymphocytes/*physiology ; Chromosome Mapping ; Genes ; Humans ; Immunoglobulin Heavy Chains/*genetics ; Leukemia/*genetics ; Recombination, Genetic ; Translocation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 90
    Publication Date: 1982-12-24
    Description: Cyclic adenosine monophosphate (AMP) analogs or agents that increase intracellular cyclic AMP rapidly stimulate transcription of the prolactin gene in a line of cultured rat pituitary cells. This effect is correlated with the phosphorylation of a chromatin-associated basic protein designated BPR. These data are consistent with the postulate that increased intracellular cyclic AMP concentrations induce rapid transcriptional effects on specific genes in eukaryotes, mediated by direct or indirect phosphorylation of a specific chromatin-associated protein or proteins.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murdoch, G H -- Rosenfeld, M G -- New York, N.Y. -- Science. 1982 Dec 24;218(4579):1315-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6293056" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cells, Cultured ; Chromatin/*metabolism ; Cyclic AMP/analogs & derivatives/*metabolism ; Nucleoproteins/metabolism ; Phosphorylation ; Pituitary Gland/metabolism ; Prolactin/genetics ; Rats ; *Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 91
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1982-05-14
    Description: Specific consistent chromosome translocations are regularly observed in certain human leukemias and lymphomas. For the myeloid leukemias, the constant recombinants are: the long arm of 9 to chromosome 22 in chronic myeloid leukemia, the long arm of 21 to chromosome 8 in acute myeloblastic leukemia, and the long arm of 17 to chromosome 15 in acute promyelocytic leukemia. Three related translocations are seen in Burkitt lymphoma and B cell acute lymphocytic leukemia; in each one, chromosome 8 is involved with chromosome 2, 14, or 22. Analysis of a complex translocation affecting chromosomes 8 and 14 indicates that the translocation of chromosome 8 to chromosome 14 is the critical constant rearrangement. The analysis of the DNA at the translocation sites of these chromosomes, rather than the reciprocal of each translocation, appears to be the most productive focus for initial study. The various immunoglobulin loci are located in chromosomes 2, 14, and 22, the chromosomes regularly involved in translocations in Burkitt lymphoma and B cell acute lymphocytic leukemia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rowley, J D -- CA 16910/CA/NCI NIH HHS/ -- CA 19266/CA/NCI NIH HHS/ -- CA 25568/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 May 14;216(4547):749-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7079737" target="_blank"〉PubMed〈/a〉
    Keywords: *Chromosome Aberrations ; Chromosomes, Human, 13-15 ; Chromosomes, Human, 16-18 ; Chromosomes, Human, 21-22 and Y ; Chromosomes, Human, 6-12 and X ; Genes ; Humans ; Immunoglobulins/*genetics ; Leukemia/*genetics ; Lymphoma/*genetics ; Translocation, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 92
    Publication Date: 1982-01-01
    Description: Administration of the hepatic carcinogen aflatoxin B1 to experimental animals results in covalent binding to liver mitochondrial DNA at concentrations three to four times higher than nuclear DNA. The concentration of carcinogen adducts in mitochondrial DNA remains unchanged even after 24 hours, possible because of lack of excision repair. Similarly, mitochondrial transcription and translation remain inhibited up to 24 hours suggesting long-term effects of aflatoxin B1 on the mitochondrial genetic system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Niranjan, B G -- Bhat, N K -- Avadhani, N G -- CA-22762/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 1;215(4528):73-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6797067" target="_blank"〉PubMed〈/a〉
    Keywords: Aflatoxin B1 ; Aflatoxins/*metabolism ; Animals ; DNA, Mitochondrial/*metabolism ; Kinetics ; Liver Neoplasms/*chemically induced/metabolism ; Male ; Mitochondria, Liver/*metabolism ; Neoplasms, Experimental/chemically induced ; Protein Biosynthesis/drug effects ; Rats ; Transcription, Genetic/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 93
    Publication Date: 1982-08-27
    Description: A cavity was made in the brain (entorhinal cortex) of developing or adult rats, and a small piece of Gelfoam was emplaced to collect fluid secreted into the wound. The neuronotrophic activity of the fluid was assayed with sympathetic and parasympathetic neurons in culture. The results show that wounds in the brain of developing or adult rats stimulate the accumulation of neuronotrophic factors and that the activity of these factors increases over the first few days after infliction of the damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nieto-Sampedro, M -- Lewis, E R -- Cotman, C W -- Manthorpe, M -- Skaper, S D -- Barbin, G -- Longo, F M -- Varon, S -- AG-00538/AG/NIA NIH HHS/ -- MH-19691/MH/NIMH NIH HHS/ -- NS-16349/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1982 Aug 27;217(4562):860-1.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7100931" target="_blank"〉PubMed〈/a〉
    Keywords: Adrenergic Fibers/physiology ; Animals ; Brain/*physiology ; Brain Injuries/*physiopathology ; Cell Survival/drug effects ; Cells, Cultured ; Cholinergic Fibers/physiology ; Kinetics ; Nerve Growth Factors/*metabolism/pharmacology ; *Nerve Regeneration ; Rats ; Rats, Inbred Strains ; Wound Healing
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 94
    Publication Date: 1982-04-16
    Description: The size of the gene pool potentially encoding antibodies to p-azophenyl arsonate has been examined. A heavy chain-specific full-length complementary DNA clone has been constructed with the use of messenger RNA from a hybridoma that produces antibodies to the arsonate hapten and bears nearly a full complement of the determinants comprising the cross-reactive idiotype (CRI). The sequences of both the complementary DNA clone and the corresponding immunoglobulin heavy chain have been independently determined. A probe for the variable region gene was prepared from the original heavy chain complementary DNA clone and used to analyze, by Southern filter hybridization, genomic DNA from both A/J (CRI positive) and BALB/c (CRI negative) mice. Approximately 20 to 25 restriction fragments containing "germline" variable region gene segments were detected in both strains, and many are shared by both, Since 35 CRI-positive heavy chains have been partially sequenced thus far and 31 are different, the results of the hybridization analysis suggest that somatic mutation events involving the variable region gene segments of the heavy chain play a role in the origin of the amino acid sequence diversity seen in this system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sims, J -- Rabbitts, T H -- Estess, P -- Slaughter, C -- Tucker, P W -- Capra, J D -- A112127/PHS HHS/ -- AI-06020/AI/NIAID NIH HHS/ -- AI18016/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 1982 Apr 16;216(4543):309-11.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6801765" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Binding Sites, Antibody/*genetics ; Genes ; Haptens ; Immunoglobulin Heavy Chains/*genetics ; Immunoglobulin Idiotypes/genetics ; Immunoglobulin Variable Region/*genetics ; Mice ; *Mutation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 95
    Publication Date: 1982-03-05
    Description: Norethisterone (17 alpha-ethynyl-19-nortestosterone) is an effective irreversible inhibitor of estrogen synthetase (aromatase), the enzyme responsible for the conversion of androgens to estrogens, even at a 2 X 10(-6) molar concentration. This irreversible inactivation, which is directed toward the active site of aromatase and requires the cofactor-reduced nicotinamide adenine dinucleotide phosphate, is both time- and concentration-dependent. Ethisterone (17 alpha-ethynyltestosterone), in contrast, is not a suicide inhibitor of aromatase even at concentrations of 10(-4) molar.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Osawa, Y -- Yarborough, C -- HDO4945/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 5;215(4537):1249-51.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7058343" target="_blank"〉PubMed〈/a〉
    Keywords: *Aromatase Inhibitors ; Binding Sites/drug effects ; Contraceptives, Oral/*pharmacology ; Estrogens/*biosynthesis ; Female ; Humans ; Kinetics ; Microsomes/enzymology ; Norethindrone/*pharmacology ; Oxidoreductases/*antagonists & inhibitors ; Placenta/enzymology ; Pregnancy
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 96
    Publication Date: 1982-03-26
    Description: Large numbers of granulocytes can be collected repeatedly from the supernatant medium of long-term cultures of mouse bone marrow cells. A constant relationship was found between the number of adherent hematopoietic stem cells and the lifetime cell production per culture. The data indicate that there is a limit to the proliferative capacity of normal and of irradiated stem cells. A similar limitation was found in the production of marked granulocytes from clonal cultures of "beige" C57 (bg/bgJ) stem cells placed in limiting dilutions into stromal culture layers.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Reincke, U -- Hannon, E C -- Rosenblatt, M -- Hellman, S -- CA 10941/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1982 Mar 26;215(4540):1619-22.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7071580" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow Cells ; Cell Division/radiation effects ; Cells, Cultured ; Granulocytes/physiology ; *Hematopoiesis/radiation effects ; Hematopoietic Stem Cells/*cytology ; Mice ; Spleen/cytology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 97
    Publication Date: 1982-10-22
    Description: Gonadotropic activation of the adult rat testis in vitro and in vivo is followed by down-regulation of luteinizing hormone receptors and decreased androgen responses to subsequent hormonal stimulation. In contrast, treatment of cultured fetal testes with gonadotropins and dibutyryl adenosine 3',5'-monophosphate enhanced steroidogenic responsiveness and did not cause the luteinizing hormone-receptor loss and desensitization that is characteristic of the adult gonad. The analysis of gonadotropin receptors and action in cultured fetal testis cells facilitates developmental studies of gonadal function, and has revealed significant differences in the responses of fetal and adult Leydig cells to gonadotropic regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Warren, D W -- Dufau, M L -- Catt, K J -- 1F33-HD06192/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 1982 Oct 22;218(4570):375-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6289438" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Bucladesine/pharmacology ; Cell Differentiation/drug effects ; Cells, Cultured ; Chorionic Gonadotropin/pharmacology ; Hydroxyprogesterones/biosynthesis ; Leydig Cells/*drug effects ; Luteinizing Hormone/pharmacology ; Male ; Progesterone/biosynthesis ; Rats ; Receptors, Cell Surface/*drug effects/metabolism ; Receptors, LH ; Testis/*embryology/metabolism ; Testosterone/biosynthesis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 98
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-11-11
    Description: When injected into mice, the synthetic double-stranded polynucleotide poly(inosinic) X poly(cytidylic) acid induces high natural killer (NK) cell activity within 4 to 12 hours. Induction of NK activity in mice immunized 2 or 3 days previously, or the addition of NK cells to cultures immunized in vitro 2 or 3 days previously, promotes early termination of the ongoing primary immunoglobulin M antibody response. A target for NK cells is a population of accessory cells that has interacted with antigen and is necessary for sustaining the antibody response. The inference is strong that NK cells induced normally by immunization also terminate the usual antibody response in vivo by elimination of antigen-exposed accessory cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abruzzo, L V -- Rowley, D A -- 5-T32-CA-09267/CA/NCI NIH HHS/ -- R01-10242/PHS HHS/ -- New York, N.Y. -- Science. 1983 Nov 11;222(4624):581-5.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6685343" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antibody Formation ; Antibody-Producing Cells/immunology ; Cells, Cultured ; Homeostasis ; Killer Cells, Natural/*immunology/radiation effects ; Lymphocyte Cooperation ; Lymphocytes/*immunology ; Mice ; Poly I-C/immunology ; Spleen/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 99
    facet.materialart.
    Unknown
    American Association for the Advancement of Science (AAAS)
    Publication Date: 1983-04-22
    Description: The human parasite Trypanosoma brucei gambiense grew continuously at 37 degrees C in primary cultures of murine bone marrow. Cultured parasites remained virulent for mice. Rapid parasite growth coincided with the appearance of adherent adipocyte-epitheloid cell aggregates that also promoted hematopoiesis. This culture system should permit studies of host cell control of trypanosome proliferation, pathogenic effects of trypanosomes on blood cell development, and the relative trypanocidal and marrow suppressive activities of drugs.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Balber, A E -- CA 14049/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):421-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836284" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Bone Marrow ; Cells, Cultured ; Culture Media ; Humans ; Mice ; Mice, Inbred BALB C ; Trypanosoma brucei brucei/growth & development ; Trypanosoma brucei gambiense/*growth & development ; Trypanosomiasis, African/parasitology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 100
    Publication Date: 1982-01-08
    Description: Prompt and long-term closure of full-thickness skin wounds is guinea pigs and humans is achieved by applying a bilayer polymeric membrane. The membrane comprises a top layer of a silicone elastomer and a bottom layer of a porous cross-linked network of collagen and glycosaminoglycan. The bottom layer can be seeded with a small number of autologous basal cells before grafting. No immunosuppression is used and infection, exudation, and rejection are absent. Host tissue utilizes the sterile membrane as a culture medium to synthesize neoepidermal and neodermal tissue. A functional extension of skin over the entire wound area is formed in about 4 weeks.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yannas, I V -- Burke, J F -- Orgill, D P -- Skrabut, E M -- GM 21700/GM/NIGMS NIH HHS/ -- GM 23946/GM/NIGMS NIH HHS/ -- HL 14322/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 1982 Jan 8;215(4529):174-6.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7031899" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Animals ; Burns/*therapy ; Cells, Cultured ; Child ; Child, Preschool ; Collagen/therapeutic use ; Female ; Glycosaminoglycans/therapeutic use ; Guinea Pigs ; Humans ; Male ; Middle Aged ; Silicone Elastomers/therapeutic use ; *Skin Transplantation ; *Wound Healing
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...