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  • Amino Acid Sequence  (296)
  • Models, Molecular  (110)
  • American Association for the Advancement of Science (AAAS)  (346)
  • American Association for the Advancement of Science
  • 2005-2009  (137)
  • 1990-1994  (209)
  • 1950-1954
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  • American Association for the Advancement of Science (AAAS)  (346)
  • American Association for the Advancement of Science
  • Nature Publishing Group (NPG)  (36)
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  • 1
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    Rare structural variants disrupt multiple genes in neurodevelopmental pathways in schizophrenia (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-03-29
    Description: Schizophrenia is a devastating neurodevelopmental disorder whose genetic influences remain elusive. We hypothesize that individually rare structural variants contribute to the illness. Microdeletions and microduplications 〉100 kilobases were identified by microarray comparative genomic hybridization of genomic DNA from 150 individuals with schizophrenia and 268 ancestry-matched controls. All variants were validated by high-resolution platforms. Novel deletions and duplications of genes were present in 5% of controls versus 15% of cases and 20% of young-onset cases, both highly significant differences. The association was independently replicated in patients with childhood-onset schizophrenia as compared with their parents. Mutations in cases disrupted genes disproportionately from signaling networks controlling neurodevelopment, including neuregulin and glutamate pathways. These results suggest that multiple, individually rare mutations altering genes in neurodevelopmental pathways contribute to schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Walsh, Tom -- McClellan, Jon M -- McCarthy, Shane E -- Addington, Anjene M -- Pierce, Sarah B -- Cooper, Greg M -- Nord, Alex S -- Kusenda, Mary -- Malhotra, Dheeraj -- Bhandari, Abhishek -- Stray, Sunday M -- Rippey, Caitlin F -- Roccanova, Patricia -- Makarov, Vlad -- Lakshmi, B -- Findling, Robert L -- Sikich, Linmarie -- Stromberg, Thomas -- Merriman, Barry -- Gogtay, Nitin -- Butler, Philip -- Eckstrand, Kristen -- Noory, Laila -- Gochman, Peter -- Long, Robert -- Chen, Zugen -- Davis, Sean -- Baker, Carl -- Eichler, Evan E -- Meltzer, Paul S -- Nelson, Stanley F -- Singleton, Andrew B -- Lee, Ming K -- Rapoport, Judith L -- King, Mary-Claire -- Sebat, Jonathan -- HD043569/HD/NICHD NIH HHS/ -- M01 RR000046/RR/NCRR NIH HHS/ -- MH061355/MH/NIMH NIH HHS/ -- MH061464/MH/NIMH NIH HHS/ -- MH061528/MH/NIMH NIH HHS/ -- NS052108/NS/NINDS NIH HHS/ -- R01 HD043569/HD/NICHD NIH HHS/ -- RR000046/RR/NCRR NIH HHS/ -- RR025014/RR/NCRR NIH HHS/ -- U01 MH061355/MH/NIMH NIH HHS/ -- U01 MH061464/MH/NIMH NIH HHS/ -- U01 MH061528/MH/NIMH NIH HHS/ -- U24 NS052108/NS/NINDS NIH HHS/ -- UL1 RR025014/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2008 Apr 25;320(5875):539-43. doi: 10.1126/science.1155174. Epub 2008 Mar 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of Washington, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18369103" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Age of Onset ; Amino Acid Sequence ; Brain/cytology/*growth & development/metabolism ; Case-Control Studies ; Child ; Excitatory Amino Acid Transporter 1/chemistry/genetics/physiology ; Female ; *Gene Deletion ; *Gene Duplication ; Genetic Predisposition to Disease ; Genome, Human ; Humans ; Male ; Molecular Sequence Data ; *Mutation ; Neurons/cytology/physiology ; Oligonucleotide Array Sequence Analysis ; Polymorphism, Single Nucleotide ; Receptor, Epidermal Growth Factor/chemistry/genetics/physiology ; Receptor, ErbB-4 ; Schizophrenia/*genetics/physiopathology ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    Sirtuin 2 inhibitors rescue alpha-synuclein-mediated toxicity in models of Parkinson's disease (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-06-26
    Description: The sirtuins are members of the histone deacetylase family of proteins that participate in a variety of cellular functions and play a role in aging. We identified a potent inhibitor of sirtuin 2 (SIRT2) and found that inhibition of SIRT2 rescued alpha-synuclein toxicity and modified inclusion morphology in a cellular model of Parkinson's disease. Genetic inhibition of SIRT2 via small interfering RNA similarly rescued alpha-synuclein toxicity. Furthermore, the inhibitors protected against dopaminergic cell death both in vitro and in a Drosophila model of Parkinson's disease. The results suggest a link between neurodegeneration and aging.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Outeiro, Tiago Fleming -- Kontopoulos, Eirene -- Altmann, Stephen M -- Kufareva, Irina -- Strathearn, Katherine E -- Amore, Allison M -- Volk, Catherine B -- Maxwell, Michele M -- Rochet, Jean-Christophe -- McLean, Pamela J -- Young, Anne B -- Abagyan, Ruben -- Feany, Mel B -- Hyman, Bradley T -- Kazantsev, Aleksey G -- 5P50-NS38372A-06/NS/NINDS NIH HHS/ -- R01-NS049221/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2007 Jul 27;317(5837):516-9. Epub 2007 Jun 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Alzheimer's Research Unit, MGH, Harvard Medical School, CNY 114, 16th Street, Charlestown, MA 02129, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17588900" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Animals, Genetically Modified ; Cell Death/drug effects ; Cell Line, Tumor ; Cells, Cultured ; Disease Models, Animal ; Dopamine/physiology ; Dose-Response Relationship, Drug ; Drosophila melanogaster ; Furans/*pharmacology ; Humans ; Models, Molecular ; Neurons/cytology/drug effects ; Parkinson Disease/*drug therapy/metabolism/pathology/*physiopathology ; Protein Conformation ; Quinolines/*pharmacology ; RNA, Small Interfering/genetics ; Rats ; Sirtuin 1 ; Sirtuin 2 ; Sirtuins/*antagonists & inhibitors/chemistry/genetics/*metabolism ; Transfection ; Tubulin/metabolism ; alpha-Synuclein/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    A family of three mouse potassium channel genes with intronless coding regions (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-02-23
    Description: To understand the molecular mechanisms responsible for generating physiologically diverse potassium channels in mammalian cells, mouse genomic clones have been isolated with a potassium channel complementary DNA, MBK1, that is homologous to the Drosophila potassium channel gene, Shaker. A family of three closely related potassium channel genes (MK1, MK2, and MK3) that are encoded at distinct genomic loci has been isolated. Sequence analysis reveals that the coding region of each of these three genes exists as a single uninterrupted exon in the mouse genome. This organization precludes the generation of multiple forms of the protein by alternative RNA splicing, a mechanism known to characterize the Drosophila potassium channel genes Shaker and Shab. Thus, mammals may use a different strategy for generating diverse K+ channels by encoding related genes at multiple distinct genomic loci, each of which produces only a single protein.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Chandy, K G -- Williams, C B -- Spencer, R H -- Aguilar, B A -- Ghanshani, S -- Tempel, B L -- Gutman, G A -- AI21366/AI/NIAID NIH HHS/ -- AI24783/AI/NIAID NIH HHS/ -- NS27206/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 1990 Feb 23;247(4945):973-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Medicine, University of California, Irvine 92717.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2305265" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; DNA/genetics ; DNA Probes ; Drosophila/genetics ; Exons ; *Introns ; Mice ; Mice, Inbred BALB C ; Molecular Sequence Data ; Nucleic Acid Hybridization ; *Potassium Channels ; Restriction Mapping
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Comment on "Protein sequences from mastodon and Tyrannosaurus rex revealed by mass spectrometry" (2008)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2008-01-05
    Description: We used authentication tests developed for ancient DNA to evaluate claims by Asara et al. (Reports, 13 April 2007, p. 280) of collagen peptide sequences recovered from mastodon and Tyrannosaurus rex fossils. Although the mastodon samples pass these tests, absence of amino acid composition data, lack of evidence for peptide deamidation, and association of alpha1(I) collagen sequences with amphibians rather than birds suggest that T. rex does not.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2694913/" 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/PMC2694913/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Buckley, Mike -- Walker, Angela -- Ho, Simon Y W -- Yang, Yue -- Smith, Colin -- Ashton, Peter -- Oates, Jane Thomas -- Cappellini, Enrico -- Koon, Hannah -- Penkman, Kirsty -- Elsworth, Ben -- Ashford, Dave -- Solazzo, Caroline -- Andrews, Phillip -- Strahler, John -- Shapiro, Beth -- Ostrom, Peggy -- Gandhi, Hasand -- Miller, Webb -- Raney, Brian -- Zylber, Maria Ines -- Gilbert, M Thomas P -- Prigodich, Richard V -- Ryan, Michael -- Rijsdijk, Kenneth F -- Janoo, Anwar -- Collins, Matthew J -- 076905/Wellcome Trust/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2008 Jan 4;319(5859):33; author reply 33. doi: 10.1126/science.1147046.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉BioArch, Departments of Biology, Archaeology, Chemistry and Technology Facility, University of York, Post Office Box 373, York YO10 5YW, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18174420" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Bone and Bones/*chemistry ; Collagen/*chemistry ; *Dinosaurs ; *Elephants ; *Fossils ; Mass Spectrometry ; Phylogeny
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 5
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    The kinase domain of titin controls muscle gene expression and protein turnover (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-04-02
    Description: The giant sarcomeric protein titin contains a protein kinase domain (TK) ideally positioned to sense mechanical load. We identified a signaling complex where TK interacts with the zinc-finger protein nbr1 through a mechanically inducible conformation. Nbr1 targets the ubiquitin-associated p62/SQSTM1 to sarcomeres, and p62 in turn interacts with MuRF2, a muscle-specific RING-B-box E3 ligase and ligand of the transactivation domain of the serum response transcription factor (SRF). Nuclear translocation of MuRF2 was induced by mechanical inactivity and caused reduction of nuclear SRF and repression of transcription. A human mutation in the titin protein kinase domain causes hereditary muscle disease by disrupting this pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lange, Stephan -- Xiang, Fengqing -- Yakovenko, Andrey -- Vihola, Anna -- Hackman, Peter -- Rostkova, Elena -- Kristensen, Jakob -- Brandmeier, Birgit -- Franzen, Gereon -- Hedberg, Birgitta -- Gunnarsson, Lars Gunnar -- Hughes, Simon M -- Marchand, Sylvie -- Sejersen, Thomas -- Richard, Isabelle -- Edstrom, Lars -- Ehler, Elisabeth -- Udd, Bjarne -- Gautel, Mathias -- G0200496(63216)/Medical Research Council/United Kingdom -- G0300213/Medical Research Council/United Kingdom -- PG/03/049/15364/British Heart Foundation/United Kingdom -- New York, N.Y. -- Science. 2005 Jun 10;308(5728):1599-603. Epub 2005 Mar 31.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Muscle Signalling and Development, Randall Division, King's College London, London SE1 1UL, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15802564" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Amino Acid Substitution ; Animals ; Catalytic Domain ; Cell Line ; Cell Nucleus/metabolism ; Connectin ; *Gene Expression Regulation ; Heat-Shock Proteins/metabolism ; Humans ; Ligands ; Mice ; Mice, Inbred C3H ; Molecular Sequence Data ; Muscle Proteins/*chemistry/genetics/*metabolism ; Muscle, Skeletal/*metabolism ; Muscular Diseases/genetics ; Mutation ; Myocytes, Cardiac/*metabolism ; Protein Binding ; Protein Conformation ; Protein Kinases/*chemistry/genetics/*metabolism ; Protein Structure, Tertiary ; Proteins/metabolism ; Rats ; Respiratory Insufficiency/genetics/metabolism ; Sarcomeres/metabolism ; Serum Response Factor/metabolism ; Signal Transduction ; Two-Hybrid System Techniques ; Ubiquitin-Protein Ligases/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 6
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    Structure of human urokinase plasminogen activator in complex with its receptor (2006)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2006-02-04
    Description: The urokinase plasminogen activator binds to its cellular receptor with high affinity and initiates signaling cascades that are implicated in pathological processes including tumor growth, metastasis, and inflammation. We report the crystal structure at 1.9 angstroms of the urokinase receptor complexed with the urokinase amino-terminal fragment and an antibody against the receptor. The three domains of urokinase receptor form a concave shape with a central cone-shaped cavity where the urokinase fragment inserts. The structure provides insight into the flexibility of the urokinase receptor that enables its interaction with a wide variety of ligands and a basis for the design of urokinase-urokinase receptor antagonists.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Huai, Qing -- Mazar, Andrew P -- Kuo, Alice -- Parry, Graham C -- Shaw, David E -- Callahan, Jennifer -- Li, Yongdong -- Yuan, Cai -- Bian, Chuanbing -- Chen, Liqing -- Furie, Bruce -- Furie, Barbara C -- Cines, Douglas B -- Huang, Mingdong -- R01 HL086584/HL/NHLBI NIH HHS/ -- R01 HL086584-01/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2006 Feb 3;311(5761):656-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Hemostasis and Thrombosis, Center for Vascular Biology Research, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16456079" target="_blank"〉PubMed〈/a〉
    Keywords: Antibodies/chemistry/metabolism ; Crystallography, X-Ray ; Humans ; Hydrogen Bonding ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Models, Molecular ; Peptide Fragments/chemistry/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Receptors, Cell Surface/*chemistry/immunology/metabolism ; Receptors, Urokinase Plasminogen Activator ; Urokinase-Type Plasminogen Activator/*chemistry/metabolism
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Genomic minimalism in the early diverging intestinal parasite Giardia lamblia (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-09-29
    Description: The genome of the eukaryotic protist Giardia lamblia, an important human intestinal parasite, is compact in structure and content, contains few introns or mitochondrial relics, and has simplified machinery for DNA replication, transcription, RNA processing, and most metabolic pathways. Protein kinases comprise the single largest protein class and reflect Giardia's requirement for a complex signal transduction network for coordinating differentiation. Lateral gene transfer from bacterial and archaeal donors has shaped Giardia's genome, and previously unknown gene families, for example, cysteine-rich structural proteins, have been discovered. Unexpectedly, the genome shows little evidence of heterozygosity, supporting recent speculations that this organism is sexual. This genome sequence will not only be valuable for investigating the evolution of eukaryotes, but will also be applied to the search for new therapeutics for this parasite.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Morrison, Hilary G -- McArthur, Andrew G -- Gillin, Frances D -- Aley, Stephen B -- Adam, Rodney D -- Olsen, Gary J -- Best, Aaron A -- Cande, W Zacheus -- Chen, Feng -- Cipriano, Michael J -- Davids, Barbara J -- Dawson, Scott C -- Elmendorf, Heidi G -- Hehl, Adrian B -- Holder, Michael E -- Huse, Susan M -- Kim, Ulandt U -- Lasek-Nesselquist, Erica -- Manning, Gerard -- Nigam, Anuranjini -- Nixon, Julie E J -- Palm, Daniel -- Passamaneck, Nora E -- Prabhu, Anjali -- Reich, Claudia I -- Reiner, David S -- Samuelson, John -- Svard, Staffan G -- Sogin, Mitchell L -- AI42488/AI/NIAID NIH HHS/ -- AI43273/AI/NIAID NIH HHS/ -- AI51687/AI/NIAID NIH HHS/ -- R01 AI043273/AI/NIAID NIH HHS/ -- R01 AI048082/AI/NIAID NIH HHS/ -- R01 HG004164/HG/NHGRI NIH HHS/ -- R01 HG004164-01/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2007 Sep 28;317(5846):1921-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Marine Biological Laboratory, Woods Hole, MA 02543-1015, USA. morrison@mbl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17901334" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; *Biological Evolution ; DNA Replication/genetics ; *Eukaryotic Cells ; Gene Transfer, Horizontal ; Genes, Protozoan ; *Genome, Protozoan ; Genomics ; Giardia lamblia/classification/*genetics/physiology ; Metabolic Networks and Pathways/genetics ; Molecular Sequence Data ; Phylogeny ; Protein Kinases/genetics/metabolism ; Protozoan Proteins/chemistry/genetics/metabolism ; RNA Processing, Post-Transcriptional ; Signal Transduction ; Transcription, Genetic
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    A -defensin mutation causes black coat color in domestic dogs (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-10-20
    Description: Genetic analysis of mammalian color variation has provided fundamental insight into human biology and disease. In most vertebrates, two key genes, Agouti and Melanocortin 1 receptor (Mc1r), encode a ligand-receptor system that controls pigment type-switching, but in domestic dogs, a third gene is implicated, the K locus, whose genetic characteristics predict a previously unrecognized component of the melanocortin pathway. We identify the K locus as beta-defensin 103 (CBD103) and show that its protein product binds with high affinity to the Mc1r and has a simple and strong effect on pigment type-switching in domestic dogs and transgenic mice. These results expand the functional role of beta-defensins, a protein family previously implicated in innate immunity, and identify an additional class of ligands for signaling through melanocortin receptors.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2906624/" 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/PMC2906624/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Candille, Sophie I -- Kaelin, Christopher B -- Cattanach, Bruce M -- Yu, Bin -- Thompson, Darren A -- Nix, Matthew A -- Kerns, Julie A -- Schmutz, Sheila M -- Millhauser, Glenn L -- Barsh, Gregory S -- R01 DK064265/DK/NIDDK NIH HHS/ -- R01 DK064265-08/DK/NIDDK NIH HHS/ -- New York, N.Y. -- Science. 2007 Nov 30;318(5855):1418-23. Epub 2007 Oct 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Genetics and Pediatrics, Stanford University, Stanford, CA, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17947548" target="_blank"〉PubMed〈/a〉
    Keywords: Agouti Signaling Protein/genetics/metabolism ; Amino Acid Sequence ; Animals ; Cell Line ; Chromosome Mapping ; Dogs/*genetics/metabolism ; Female ; Hair Color/*genetics ; Haplotypes ; Humans ; Keratinocytes/metabolism ; Male ; Mice ; Mice, Transgenic ; Molecular Sequence Data ; Mutation ; Polymorphism, Genetic ; Receptor, Melanocortin, Type 1/*metabolism ; Sequence Analysis, DNA ; Sequence Deletion ; Signal Transduction ; Skin/metabolism ; beta-Defensins/chemistry/*genetics/*metabolism
    Print ISSN: 0036-8075
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  • 9
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    Identification of ras oncogene mutations in the stool of patients with curable colorectal tumors (1992)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1992-04-03
    Description: Colorectal (CR) tumors are usually curable if detected before metastasis. Because genetic alterations are associated with the development of these tumors, mutant genes may be found in the stool of individuals with CR neoplasms. The stools of nine patients whose tumors contained mutations of K-ras were analyzed. In eight of the nine cases, the ras mutations were detectable in DNA purified from the stool. These patients included those with benign and malignant neoplasms from proximal and distal colonic epithelium. Thus, colorectal tumors can be detected by a noninvasive method based on the molecular pathogenesis of the disease.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sidransky, D -- Tokino, T -- Hamilton, S R -- Kinzler, K W -- Levin, B -- Frost, P -- Vogelstein, B -- CA06973/CA/NCI NIH HHS/ -- CA35494/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1992 Apr 3;256(5053):102-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Oncology, Johns Hopkins University, Baltimore, MD 21231.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/1566048" target="_blank"〉PubMed〈/a〉
    Keywords: Adult ; Aged ; Amino Acid Sequence ; Base Sequence ; Blotting, Southern ; Carcinoma/diagnosis/*genetics/pathology ; Colonic Neoplasms/diagnosis/*genetics/pathology ; DNA, Neoplasm/genetics/*isolation & purification ; Feces/chemistry ; Female ; *Genes, ras ; Humans ; Male ; Middle Aged ; Molecular Sequence Data ; *Mutation ; Oligodeoxyribonucleotides ; Polymerase Chain Reaction ; Prognosis ; Rectal Neoplasms/diagnosis/*genetics/pathology
    Print ISSN: 0036-8075
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Structural mutations of the T cell receptor zeta chain and its role in T cell activation (1990)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1990-07-13
    Description: T cell hybridomas that express zeta zeta, but not zeta eta, dimers in their T cell receptors (TCRs) produce interleukin-2 (IL-2) and undergo an inhibition of spontaneous growth when activated by antigen, antibodies to the receptor, or antibodies to Thy-1. Hybridomas without zeta and eta were reconstituted with mutated zeta chains. Cytoplasmic truncations of up to 40% of the zeta molecule reconstituted normal surface assembly of TCRs, but antigen-induced IL-2 secretion and growth inhibition were lost. In contrast, cross-linking antibodies to the TCR activated these cells. A point mutation conferred the same signaling phenotype as did the truncations and caused defective antigen-induced tyrosine kinase activation. Thus zeta allows the binding of antigen/major histocompatibility complex (MHC) to alpha beta to effect TCR signaling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Frank, S J -- Niklinska, B B -- Orloff, D G -- Mercep, M -- Ashwell, J D -- Klausner, R D -- New York, N.Y. -- Science. 1990 Jul 13;249(4965):174-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2371564" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Cross-Linking Reagents ; Dose-Response Relationship, Immunologic ; Hybridomas ; Immunity, Cellular ; Immunoblotting ; Interleukin-2/*biosynthesis ; Ligands ; *Lymphocyte Activation ; Major Histocompatibility Complex ; Mice ; Molecular Sequence Data ; Mutation ; Peptide Fragments/genetics/*immunology ; Precipitin Tests ; Receptors, Antigen, T-Cell/genetics/*immunology ; Signal Transduction ; T-Lymphocytes/*immunology ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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