ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 1
    Publication Date: 2008-07-29
    Description: Influenza A virus is a major human and animal pathogen with the potential to cause catastrophic loss of life. The virus reproduces rapidly, mutates frequently and occasionally crosses species barriers. The recent emergence in Asia of avian influenza related to highly pathogenic forms of the human virus has highlighted the urgent need for new effective treatments. Here we demonstrate the importance to viral replication of a subunit interface in the viral RNA polymerase, thereby providing a new set of potential drug binding sites entirely independent of surface antigen type. No current medication targets this heterotrimeric polymerase complex. All three subunits, PB1, PB2 and PA, are required for both transcription and replication. PB1 carries the polymerase active site, PB2 includes the capped-RNA recognition domain, and PA is involved in assembly of the functional complex, but so far very little structural information has been reported for any of them. We describe the crystal structure of a large fragment of one subunit (PA) of influenza A RNA polymerase bound to a fragment of another subunit (PB1). The carboxy-terminal domain of PA forms a novel fold, and forms a deep, highly hydrophobic groove into which the amino-terminal residues of PB1 can fit by forming a 3(10) helix.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Obayashi, Eiji -- Yoshida, Hisashi -- Kawai, Fumihiro -- Shibayama, Naoya -- Kawaguchi, Atsushi -- Nagata, Kyosuke -- Tame, Jeremy R H -- Park, Sam-Yong -- England -- Nature. 2008 Aug 28;454(7208):1127-31. doi: 10.1038/nature07225. Epub 2008 Jul 27.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Design Laboratory, Yokohama City University, 1-7-29 Suehiro, Tsurumi, Yokohama 230-0045, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18660801" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Cell Line ; Crystallization ; Crystallography, X-Ray ; Humans ; Influenza A Virus, H1N1 Subtype/*enzymology/genetics ; Protein Binding ; Protein Subunits/*chemistry/genetics/*metabolism ; RNA Replicase/*chemistry/genetics/*metabolism ; Viral Proteins/*chemistry/genetics/*metabolism ; Virus Replication
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2015-02-06
    Description: Rising temperatures and lessening fresh water supplies are threatening agricultural productivity and have motivated efforts to improve plant water use and drought tolerance. During water deficit, plants produce elevated levels of abscisic acid (ABA), which improves water consumption and stress tolerance by controlling guard cell aperture and other protective responses. One attractive strategy for controlling water use is to develop compounds that activate ABA receptors, but agonists approved for use have yet to be developed. In principle, an engineered ABA receptor that can be activated by an existing agrochemical could achieve this goal. Here we describe a variant of the ABA receptor PYRABACTIN RESISTANCE 1 (PYR1) that possesses nanomolar sensitivity to the agrochemical mandipropamid and demonstrate its efficacy for controlling ABA responses and drought tolerance in transgenic plants. Furthermore, crystallographic studies provide a mechanistic basis for its activity and demonstrate the relative ease with which the PYR1 ligand-binding pocket can be altered to accommodate new ligands. Thus, we have successfully repurposed an agrochemical for a new application using receptor engineering. We anticipate that this strategy will be applied to other plant receptors and represents a new avenue for crop improvement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Sang-Youl -- Peterson, Francis C -- Mosquna, Assaf -- Yao, Jin -- Volkman, Brian F -- Cutler, Sean R -- England -- Nature. 2015 Apr 23;520(7548):545-8. doi: 10.1038/nature14123. Epub 2015 Feb 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉1] Center for Plant Cell Biology and Department of Botany and Plant Sciences, University of California, Riverside, California 92521, USA [2] Institute for Integrative Genome Biology, Riverside, California 92521, USA. ; Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25652827" target="_blank"〉PubMed〈/a〉
    Keywords: Abscisic Acid/*metabolism ; Acclimatization/drug effects ; Agrochemicals/*pharmacology ; Amides/*pharmacology ; Arabidopsis/drug effects/genetics/metabolism ; Arabidopsis Proteins/*genetics/*metabolism ; Binding Sites ; Carboxylic Acids/*pharmacology ; Crystallography, X-Ray ; Droughts ; Genetic Engineering ; Genotype ; Ligands ; Lycopersicon esculentum/drug effects/genetics/metabolism ; Membrane Transport Proteins/*genetics/*metabolism ; Models, Molecular ; Plant Transpiration/drug effects ; Plants/*drug effects/genetics/*metabolism ; Plants, Genetically Modified ; Stress, Physiological/drug effects ; Structure-Activity Relationship ; Water/*metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2004-02-14
    Description: Somatic cell nuclear transfer (SCNT) technology has recently been used to generate animals with a common genetic composition. In this study, we report the derivation of a pluripotent embryonic stem (ES) cell line (SCNT-hES-1) from a cloned human blastocyst. The SCNT-hES-1 cells displayed typical ES cell morphology and cell surface markers and were capable of differentiating into embryoid bodies in vitro and of forming teratomas in vivo containing cell derivatives from all three embryonic germ layers in severe combined immunodeficient mice. After continuous proliferation for more than 70 passages, SCNT-hES-1 cells maintained normal karyotypes and were genetically identical to the somatic nuclear donor cells. Although we cannot completely exclude the possibility that the cells had a parthenogenetic origin, imprinting analyses support a SCNT origin of the derived human ES cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hwang, Woo Suk -- Ryu, Young June -- Park, Jong Hyuk -- Park, Eul Soon -- Lee, Eu Gene -- Koo, Ja Min -- Jeon, Hyun Yong -- Lee, Byeong Chun -- Kang, Sung Keun -- Kim, Sun Jong -- Ahn, Curie -- Hwang, Jung Hye -- Park, Ky Young -- Cibelli, Jose B -- Moon, Shin Yong -- New York, N.Y. -- Science. 2004 Mar 12;303(5664):1669-74. Epub 2004 Feb 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉College of Veterinary Medicine, Seoul National University, Seoul 151-742, Korea. hwangws@snu.ac.kr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14963337" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biomarkers/analysis ; Blastocyst/*cytology ; Cell Differentiation ; *Cell Line ; *Cloning, Organism ; Culture Media ; Culture Techniques ; DNA Fingerprinting ; Embryo, Mammalian/*cytology ; Female ; Genomic Imprinting ; Humans ; Karyotyping ; Male ; Mice ; Mice, SCID ; Nuclear Transfer Techniques ; Oocyte Donation ; Ovarian Follicle/cytology ; Parthenogenesis ; Pluripotent Stem Cells/chemistry/*cytology ; Reverse Transcriptase Polymerase Chain Reaction ; Tandem Repeat Sequences ; Teratoma/etiology/pathology ; Testicular Neoplasms/etiology/pathology
    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: 2004-01-17
    Description: Before ovulation in mammals, a cascade of events resembling an inflammatory and/or tissue remodeling process is triggered by luteinizing hormone (LH) in the ovarian follicle. Many LH effects, however, are thought to be indirect because of the restricted expression of its receptor. Here, we demonstrate that LH stimulation induces the transient and sequential expression of the epidermal growth factor (EGF) family members amphiregulin, epiregulin, and beta-cellulin. Incubation of follicles with these growth factors recapitulates the morphological and biochemical events triggered by LH, including cumulus expansion and oocyte maturation. Thus, these EGF-related growth factors are paracrine mediators that propagate the LH signal throughout the follicle.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Jy-Young -- Su, You-Qiang -- Ariga, Miyako -- Law, Evelyn -- Jin, S-L Catherine -- Conti, Marco -- HD20788/HD/NICHD NIH HHS/ -- HD31398/HD/NICHD NIH HHS/ -- New York, N.Y. -- Science. 2004 Jan 30;303(5658):682-4. Epub 2004 Jan 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Reproductive Biology and Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14726596" target="_blank"〉PubMed〈/a〉
    Keywords: Amphiregulin ; Animals ; Betacellulin ; Chorionic Gonadotropin/pharmacology ; EGF Family of Proteins ; Epidermal Growth Factor/genetics/*metabolism ; Epiregulin ; Female ; Gene Expression Regulation ; Glycoproteins/genetics/*metabolism ; Granulosa Cells/metabolism ; Intercellular Signaling Peptides and Proteins/genetics/*metabolism ; Luteinizing Hormone/pharmacology/*physiology ; Meiosis ; Mice ; Mice, Inbred C57BL ; Oocytes/physiology ; Organ Culture Techniques ; Ovarian Follicle/*physiology ; Ovulation/*physiology ; Paracrine Communication ; RNA, Messenger/genetics/metabolism ; Receptor, Epidermal Growth Factor/metabolism ; 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 ...
  • 5
    Publication Date: 2011-07-12
    Description: In eukaryotes, accurate chromosome segregation during mitosis and meiosis is coordinated by kinetochores, which are unique chromosomal sites for microtubule attachment. Centromeres specify the kinetochore formation sites on individual chromosomes, and are epigenetically marked by the assembly of nucleosomes containing the centromere-specific histone H3 variant, CENP-A. Although the underlying mechanism is unclear, centromere inheritance is probably dictated by the architecture of the centromeric nucleosome. Here we report the crystal structure of the human centromeric nucleosome containing CENP-A and its cognate alpha-satellite DNA derivative (147 base pairs). In the human CENP-A nucleosome, the DNA is wrapped around the histone octamer, consisting of two each of histones H2A, H2B, H4 and CENP-A, in a left-handed orientation. However, unlike the canonical H3 nucleosome, only the central 121 base pairs of the DNA are visible. The thirteen base pairs from both ends of the DNA are invisible in the crystal structure, and the alphaN helix of CENP-A is shorter than that of H3, which is known to be important for the orientation of the DNA ends in the canonical H3 nucleosome. A structural comparison of the CENP-A and H3 nucleosomes revealed that CENP-A contains two extra amino acid residues (Arg 80 and Gly 81) in the loop 1 region, which is completely exposed to the solvent. Mutations of the CENP-A loop 1 residues reduced CENP-A retention at the centromeres in human cells. Therefore, the CENP-A loop 1 may function in stabilizing the centromeric chromatin containing CENP-A, possibly by providing a binding site for trans-acting factors. The structure provides the first atomic-resolution picture of the centromere-specific nucleosome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tachiwana, Hiroaki -- Kagawa, Wataru -- Shiga, Tatsuya -- Osakabe, Akihisa -- Miya, Yuta -- Saito, Kengo -- Hayashi-Takanaka, Yoko -- Oda, Takashi -- Sato, Mamoru -- Park, Sam-Yong -- Kimura, Hiroshi -- Kurumizaka, Hitoshi -- England -- Nature. 2011 Jul 10;476(7359):232-5. doi: 10.1038/nature10258.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Structural Biology, Graduate School of Advanced Science and Engineering, Waseda University, 2-2 Wakamatsu-cho, Shinjuku-ku, Tokyo 162-8480, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21743476" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Autoantigens/*chemistry/metabolism ; Base Sequence ; Chromosomal Proteins, Non-Histone/*chemistry/metabolism ; Crystallography, X-Ray ; DNA/*chemistry/genetics/metabolism ; Histones/*chemistry/metabolism ; Humans ; Models, Molecular ; Molecular Conformation ; Molecular Sequence Data ; Nucleosomes/*chemistry/genetics/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Publication Date: 2007-06-16
    Description: The cytokine transforming growth factor-beta (TGF-beta) converts naive T cells into regulatory T (Treg) cells that prevent autoimmunity. However, in the presence of interleukin-6 (IL-6), TGF-beta has also been found to promote the differentiation of naive T lymphocytes into proinflammatory IL-17 cytokine-producing T helper 17 (T(H)17) cells, which promote autoimmunity and inflammation. This raises the question of how TGF-beta can generate such distinct outcomes. We identified the vitamin A metabolite retinoic acid as a key regulator of TGF-beta-dependent immune responses, capable of inhibiting the IL-6-driven induction of proinflammatory T(H)17 cells and promoting anti-inflammatory Treg cell differentiation. These findings indicate that a common metabolite can regulate the balance between pro- and anti-inflammatory immunity.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mucida, Daniel -- Park, Yunji -- Kim, Gisen -- Turovskaya, Olga -- Scott, Iain -- Kronenberg, Mitchell -- Cheroutre, Hilde -- R01 AI050265-06/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2007 Jul 13;317(5835):256-60. Epub 2007 Jun 14.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17569825" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Differentiation ; Cells, Cultured ; Colitis/immunology ; Dendritic Cells/immunology ; Dibenzazepines/pharmacology ; Forkhead Transcription Factors/biosynthesis ; Interleukin-17/*biosynthesis ; Interleukin-2/immunology ; Interleukin-6/immunology ; Intestinal Mucosa/cytology/immunology ; Listeriosis/immunology ; Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Spleen/cytology/immunology ; T-Lymphocyte Subsets/cytology/*immunology ; T-Lymphocytes, Helper-Inducer/cytology/*immunology ; T-Lymphocytes, Regulatory/cytology/*immunology ; Transforming Growth Factor beta/metabolism/pharmacology ; Tretinoin/pharmacology/*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 ...
  • 7
    Publication Date: 2013-12-07
    Description: The yellow fever vaccine YF-17D is one of the most successful vaccines ever developed in humans. Despite its efficacy and widespread use in more than 600 million people, the mechanisms by which it stimulates protective immunity remain poorly understood. Recent studies using systems biology approaches in humans have revealed that YF-17D-induced early expression of general control nonderepressible 2 kinase (GCN2) in the blood strongly correlates with the magnitude of the later CD8(+) T cell response. We demonstrate a key role for virus-induced GCN2 activation in programming dendritic cells to initiate autophagy and enhanced antigen presentation to both CD4(+) and CD8(+) T cells. These results reveal an unappreciated link between virus-induced integrated stress response in dendritic cells and the adaptive immune response.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4048998/" 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/PMC4048998/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ravindran, Rajesh -- Khan, Nooruddin -- Nakaya, Helder I -- Li, Shuzhao -- Loebbermann, Jens -- Maddur, Mohan S -- Park, Youngja -- Jones, Dean P -- Chappert, Pascal -- Davoust, Jean -- Weiss, David S -- Virgin, Herbert W -- Ron, David -- Pulendran, Bali -- 084812/Wellcome Trust/United Kingdom -- 084812/Z/08/Z/Wellcome Trust/United Kingdom -- N01 AI50019/AI/NIAID NIH HHS/ -- N01 AI50025/AI/NIAID NIH HHS/ -- P51 OD011132/OD/NIH HHS/ -- R37 AI048638/AI/NIAID NIH HHS/ -- R37 DK057665/DK/NIDDK NIH HHS/ -- R56 AI048638/AI/NIAID NIH HHS/ -- U19 AI057266/AI/NIAID NIH HHS/ -- U19 AI090023/AI/NIAID NIH HHS/ -- U54 AI057157/AI/NIAID NIH HHS/ -- U54 AI057160/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2014 Jan 17;343(6168):313-7. doi: 10.1126/science.1246829. Epub 2013 Dec 5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Emory Vaccine Center, Yerkes National Primate Research Center, Emory University, 954 Gatewood Road, Atlanta, GA 30329, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24310610" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Antigen Presentation ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; Cell Line ; Cricetinae ; Dendritic Cells/enzymology/*immunology ; Enzyme Activation ; Humans ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microtubule-Associated Proteins/genetics ; Protein-Serine-Threonine Kinases/*biosynthesis/genetics ; Yellow Fever Vaccine/*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 ...
  • 8
    Publication Date: 2014-01-25
    Description: The transcription and transport of messenger RNA (mRNA) are critical steps in regulating the spatial and temporal components of gene expression, but it has not been possible to observe the dynamics of endogenous mRNA in primary mammalian tissues. We have developed a transgenic mouse in which all beta-actin mRNA is fluorescently labeled. We found that beta-actin mRNA in primary fibroblasts localizes predominantly by diffusion and trapping as single mRNAs. In cultured neurons and acute brain slices, we found that multiple beta-actin mRNAs can assemble together, travel by active transport, and disassemble upon depolarization by potassium chloride. Imaging of brain slices revealed immediate early induction of beta-actin transcription after depolarization. Studying endogenous mRNA in live mouse tissues provides insight into its dynamic regulation within the context of the cellular and tissue microenvironment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4111226/" 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/PMC4111226/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Hye Yoon -- Lim, Hyungsik -- Yoon, Young J -- Follenzi, Antonia -- Nwokafor, Chiso -- Lopez-Jones, Melissa -- Meng, Xiuhua -- Singer, Robert H -- EB13571/EB/NIBIB NIH HHS/ -- F32-GM87122/GM/NIGMS NIH HHS/ -- GM84364/GM/NIGMS NIH HHS/ -- NS083085-19/NS/NINDS NIH HHS/ -- R01 EB013571/EB/NIBIB NIH HHS/ -- R01 NS083085/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Jan 24;343(6169):422-4. doi: 10.1126/science.1239200.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Anatomy and Structural Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24458643" target="_blank"〉PubMed〈/a〉
    Keywords: Actins/*biosynthesis/genetics ; Animals ; Brain/cytology/metabolism ; Cells, Cultured ; Fibroblasts/metabolism ; Fluorescent Dyes/chemistry ; Mice ; Mice, Transgenic ; Neuroimaging/*methods ; Neurons/metabolism ; Protein Biosynthesis ; RNA, Messenger/analysis/biosynthesis/*metabolism ; Staining and Labeling
    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...