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  • Articles  (46)
  • Protein Binding  (46)
  • American Association for the Advancement of Science (AAAS)  (46)
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  • Articles  (46)
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  • American Association for the Advancement of Science (AAAS)  (46)
  • American Geophysical Union
  • Institute of Physics
  • MDPI Publishing
  • Molecular Diversity Preservation International
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  • 2020-2022
  • 2015-2019
  • 2010-2014  (46)
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  • 1
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    Nebulin and N-WASP cooperate to cause IGF-1-induced sarcomeric actin filament formation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-15
    Description: Insulin-like growth factor 1 (IGF-1) induces skeletal muscle maturation and enlargement (hypertrophy). These responses require protein synthesis and myofibril formation (myofibrillogenesis). However, the signaling mechanisms of myofibrillogenesis remain obscure. We found that IGF-1-induced phosphatidylinositol 3-kinase-Akt signaling formed a complex of nebulin and N-WASP at the Z bands of myofibrils by interfering with glycogen synthase kinase-3beta in mice. Although N-WASP is known to be an activator of the Arp2/3 complex to form branched actin filaments, the nebulin-N-WASP complex caused actin nucleation for unbranched actin filament formation from the Z bands without the Arp2/3 complex. Furthermore, N-WASP was required for IGF-1-induced muscle hypertrophy. These findings present the mechanisms of IGF-1-induced actin filament formation in myofibrillogenesis required for muscle maturation and hypertrophy and a mechanism of actin nucleation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Takano, Kazunori -- Watanabe-Takano, Haruko -- Suetsugu, Shiro -- Kurita, Souichi -- Tsujita, Kazuya -- Kimura, Sumiko -- Karatsu, Takashi -- Takenawa, Tadaomi -- Endo, Takeshi -- New York, N.Y. -- Science. 2010 Dec 10;330(6010):1536-40. doi: 10.1126/science.1197767.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Graduate School of Science, Chiba University, 1-33 Yayoicho, Inageku, Chiba 263-8522, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21148390" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/*metabolism ; Actins/*metabolism ; Animals ; COS Cells ; Cercopithecus aethiops ; Hypertrophy ; Insulin-Like Growth Factor I/*metabolism ; Mice ; Mice, Inbred ICR ; *Muscle Development ; Muscle Proteins/chemistry/*metabolism ; Muscle, Skeletal/metabolism/pathology ; Myofibrils/metabolism ; Phosphatidylinositol 3-Kinase/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Proto-Oncogene Proteins c-akt/metabolism ; RNA Interference ; Sarcomeres/*metabolism ; Signal Transduction ; Wiskott-Aldrich Syndrome Protein, Neuronal/chemistry/*metabolism ; src Homology Domains
    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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    Covering a broad dynamic range: information processing at the erythropoietin receptor (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-22
    Description: Cell surface receptors convert extracellular cues into receptor activation, thereby triggering intracellular signaling networks and controlling cellular decisions. A major unresolved issue is the identification of receptor properties that critically determine processing of ligand-encoded information. We show by mathematical modeling of quantitative data and experimental validation that rapid ligand depletion and replenishment of the cell surface receptor are characteristic features of the erythropoietin (Epo) receptor (EpoR). The amount of Epo-EpoR complexes and EpoR activation integrated over time corresponds linearly to ligand input; this process is carried out over a broad range of ligand concentrations. This relation depends solely on EpoR turnover independent of ligand binding, which suggests an essential role of large intracellular receptor pools. These receptor properties enable the system to cope with basal and acute demand in the hematopoietic system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Becker, Verena -- Schilling, Marcel -- Bachmann, Julie -- Baumann, Ute -- Raue, Andreas -- Maiwald, Thomas -- Timmer, Jens -- Klingmuller, Ursula -- New York, N.Y. -- Science. 2010 Jun 11;328(5984):1404-8. doi: 10.1126/science.1184913. Epub 2010 May 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division Systems Biology of Signal Transduction, DKFZ-ZMBH Alliance, German Cancer Research Center, 69120 Heidelberg, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20488988" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Cell Membrane/*metabolism ; Computer Simulation ; Endocytosis ; Epoetin Alfa ; Erythropoietin/metabolism/pharmacology ; Kinetics ; Ligands ; Mice ; Models, Biological ; Protein Binding ; Receptors, Erythropoietin/*metabolism ; Recombinant Proteins ; Signal Transduction
    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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  • 3
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    Identification of RACK1 and protein kinase Calpha as integral components of the mammalian circadian clock (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-23
    Description: At the core of the mammalian circadian clock is a negative feedback loop in which the dimeric transcription factor CLOCK-BMAL1 drives processes that in turn suppress its transcriptional activity. To gain insight into the mechanisms of circadian feedback, we analyzed mouse protein complexes containing BMAL1. Receptor for activated C kinase-1 (RACK1) and protein kinase C-alpha (PKCalpha) were recruited in a circadian manner into a nuclear BMAL1 complex during the negative feedback phase of the cycle. Overexpression of RACK1 and PKCalpha suppressed CLOCK-BMAL1 transcriptional activity, and RACK1 stimulated phosphorylation of BMAL1 by PKCalpha in vitro. Depletion of endogenous RACK1 or PKCalpha from fibroblasts shortened the circadian period, demonstrating that both molecules function in the clock oscillatory mechanism. Thus, the classical PKC signaling pathway is not limited to relaying external stimuli but is rhythmically activated by internal processes, forming an integral part of the circadian feedback loop.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Robles, Maria S -- Boyault, Cyril -- Knutti, Darko -- Padmanabhan, Kiran -- Weitz, Charles J -- New York, N.Y. -- Science. 2010 Jan 22;327(5964):463-6. doi: 10.1126/science.1180067.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20093473" target="_blank"〉PubMed〈/a〉
    Keywords: ARNTL Transcription Factors/metabolism ; Animals ; CLOCK Proteins/metabolism ; Cell Nucleus/metabolism ; Circadian Rhythm/*physiology ; Feedback, Physiological ; Fibroblasts/metabolism/physiology ; Mice ; Mice, Inbred C57BL ; Neuropeptides/genetics/*metabolism ; Phosphorylation ; Protein Binding ; Protein Kinase C-alpha/*metabolism ; RNA Interference ; Signal Transduction ; Transcription, Genetic
    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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    FAN1 acts with FANCI-FANCD2 to promote DNA interstrand cross-link repair (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-31
    Description: Fanconi anemia (FA) is caused by mutations in 13 Fanc genes and renders cells hypersensitive to DNA interstrand cross-linking (ICL) agents. A central event in the FA pathway is mono-ubiquitylation of the FANCI-FANCD2 (ID) protein complex. Here, we characterize a previously unrecognized nuclease, Fanconi anemia-associated nuclease 1 (FAN1), that promotes ICL repair in a manner strictly dependent on its ability to accumulate at or near sites of DNA damage and that relies on mono-ubiquitylation of the ID complex. Thus, the mono-ubiquitylated ID complex recruits the downstream repair protein FAN1 and facilitates the repair of DNA interstrand cross-links.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Ting -- Ghosal, Gargi -- Yuan, Jingsong -- Chen, Junjie -- Huang, Jun -- New York, N.Y. -- Science. 2010 Aug 6;329(5992):693-6. doi: 10.1126/science.1192656. Epub 2010 Jul 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20671156" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Cell Line ; Cell Nucleus/metabolism ; DNA/*metabolism ; DNA Damage ; *DNA Repair ; Exodeoxyribonucleases/chemistry/genetics/*metabolism ; Fanconi Anemia Complementation Group D2 Protein/*metabolism ; Fanconi Anemia Complementation Group Proteins/*metabolism ; Gene Knockdown Techniques ; HeLa Cells ; Humans ; Mitomycin/pharmacology ; Molecular Sequence Data ; Mutant Proteins/metabolism ; Protein Binding ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Zinc Fingers
    Print ISSN: 0036-8075
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  • 5
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    Restriction of receptor movement alters cellular response: physical force sensing by EphA2 (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-13
    Description: Activation of the EphA2 receptor tyrosine kinase by ephrin-A1 ligands presented on apposed cell surfaces plays important roles in development and exhibits poorly understood functional alterations in cancer. We reconstituted this intermembrane signaling geometry between live EphA2-expressing human breast cancer cells and supported membranes displaying laterally mobile ephrin-A1. Receptor-ligand binding, clustering, and subsequent lateral transport within this junction were observed. EphA2 transport can be blocked by physical barriers nanofabricated onto the underlying substrate. This physical reorganization of EphA2 alters the cellular response to ephrin-A1, as observed by changes in cytoskeleton morphology and recruitment of a disintegrin and metalloprotease 10. Quantitative analysis of receptor-ligand spatial organization across a library of 26 mammary epithelial cell lines reveals characteristic differences that strongly correlate with invasion potential. These observations reveal a mechanism for spatio-mechanical regulation of EphA2 signaling pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2895569/" 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/PMC2895569/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Salaita, Khalid -- Nair, Pradeep M -- Petit, Rebecca S -- Neve, Richard M -- Das, Debopriya -- Gray, Joe W -- Groves, Jay T -- P50 CA 58207/CA/NCI NIH HHS/ -- P50 CA058207/CA/NCI NIH HHS/ -- P50 CA058207-060002/CA/NCI NIH HHS/ -- P50 CA058207-08/CA/NCI NIH HHS/ -- P50 CA058207-09/CA/NCI NIH HHS/ -- U54 CA 112970/CA/NCI NIH HHS/ -- U54 CA112970/CA/NCI NIH HHS/ -- U54 CA112970-01/CA/NCI NIH HHS/ -- U54 CA143836/CA/NCI NIH HHS/ -- U54 CA143836-01/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Mar 12;327(5971):1380-5. doi: 10.1126/science.1181729.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, Department of Chemistry, University of California, Berkeley, CA 94720, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20223987" target="_blank"〉PubMed〈/a〉
    Keywords: ADAM Proteins/metabolism ; Actomyosin/physiology ; Amyloid Precursor Protein Secretases/metabolism ; Antigens, CD44/metabolism ; Breast Neoplasms/*metabolism/pathology ; Cell Line, Tumor ; Cell Membrane/metabolism ; Cell Shape ; Cytoskeleton/physiology/ultrastructure ; Ephrin-A1/*chemistry/*metabolism ; Female ; Humans ; Ligands ; Lipid Bilayers ; *Mechanotransduction, Cellular ; Membrane Proteins/metabolism ; Neoplasm Invasiveness ; Protein Binding ; Protein Multimerization ; Protein Transport ; Receptor, EphA2/*chemistry/*metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 6
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    Crystal structure of the eukaryotic ribosome (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-27
    Description: Crystal structures of prokaryotic ribosomes have described in detail the universally conserved core of the translation mechanism. However, many facets of the translation process in eukaryotes are not shared with prokaryotes. The crystal structure of the yeast 80S ribosome determined at 4.15 angstrom resolution reveals the higher complexity of eukaryotic ribosomes, which are 40% larger than their bacterial counterparts. Our model shows how eukaryote-specific elements considerably expand the network of interactions within the ribosome and provides insights into eukaryote-specific features of protein synthesis. Our crystals capture the ribosome in the ratcheted state, which is essential for translocation of mRNA and transfer RNA (tRNA), and in which the small ribosomal subunit has rotated with respect to the large subunit. We describe the conformational changes in both ribosomal subunits that are involved in ratcheting and their implications in coordination between the two associated subunits and in mRNA and tRNA translocation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ben-Shem, Adam -- Jenner, Lasse -- Yusupova, Gulnara -- Yusupov, Marat -- New York, N.Y. -- Science. 2010 Nov 26;330(6008):1203-9. doi: 10.1126/science.1194294.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉IGBMC (Institut de Genetique et de Biologie Moleculaire et Cellulaire), 1 rue Laurent Fries, BP10142, Illkirch F-67400, France. adam@igbmc.fr〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21109664" target="_blank"〉PubMed〈/a〉
    Keywords: Crystallization ; Crystallography, X-Ray ; Models, Molecular ; Nucleic Acid Conformation ; Peptide Chain Initiation, Translational ; Protein Binding ; *Protein Biosynthesis ; Protein Conformation ; RNA, Fungal/analysis/chemistry/metabolism ; RNA, Messenger/analysis/chemistry/metabolism ; RNA, Ribosomal/analysis/*chemistry/metabolism ; RNA, Transfer/chemistry/metabolism ; Ribosomal Proteins/analysis/*chemistry/metabolism ; Ribosome Subunits, Large, Eukaryotic/chemistry/metabolism/ultrastructure ; Ribosome Subunits, Small, Eukaryotic/chemistry/metabolism/ultrastructure ; Ribosomes/*chemistry/metabolism/*ultrastructure ; Saccharomyces cerevisiae/chemistry/genetics/metabolism/*ultrastructure ; Saccharomyces cerevisiae Proteins/analysis/chemistry/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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  • 7
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    Variation in transcription factor binding among humans (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-20
    Description: Differences in gene expression may play a major role in speciation and phenotypic diversity. We examined genome-wide differences in transcription factor (TF) binding in several humans and a single chimpanzee by using chromatin immunoprecipitation followed by sequencing. The binding sites of RNA polymerase II (PolII) and a key regulator of immune responses, nuclear factor kappaB (p65), were mapped in 10 lymphoblastoid cell lines, and 25 and 7.5% of the respective binding regions were found to differ between individuals. Binding differences were frequently associated with single-nucleotide polymorphisms and genomic structural variants, and these differences were often correlated with differences in gene expression, suggesting functional consequences of binding variation. Furthermore, comparing PolII binding between humans and chimpanzee suggests extensive divergence in TF binding. Our results indicate that many differences in individuals and species occur at the level of TF binding, and they provide insight into the genetic events responsible for these differences.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2938768/" 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/PMC2938768/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kasowski, Maya -- Grubert, Fabian -- Heffelfinger, Christopher -- Hariharan, Manoj -- Asabere, Akwasi -- Waszak, Sebastian M -- Habegger, Lukas -- Rozowsky, Joel -- Shi, Minyi -- Urban, Alexander E -- Hong, Mi-Young -- Karczewski, Konrad J -- Huber, Wolfgang -- Weissman, Sherman M -- Gerstein, Mark B -- Korbel, Jan O -- Snyder, Michael -- R01 CA077808/CA/NCI NIH HHS/ -- R01 CA077808-09/CA/NCI NIH HHS/ -- T32 GM007205/GM/NIGMS NIH HHS/ -- T32 GM007205-34/GM/NIGMS NIH HHS/ -- T32GM07205/GM/NIGMS NIH HHS/ -- U54 HG004558/HG/NHGRI NIH HHS/ -- U54 HG004558-04/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):232-5. doi: 10.1126/science.1183621. Epub 2010 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT 06520, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20299548" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; Chromatin Immunoprecipitation ; DNA Copy Number Variations ; DNA, Intergenic ; Female ; *Gene Expression Regulation ; Humans ; Male ; Pan troglodytes/genetics ; *Polymorphism, Single Nucleotide ; Protein Binding ; RNA Polymerase II/genetics/*metabolism ; Sequence Analysis, DNA ; Species Specificity ; Transcription Factor RelA/genetics/*metabolism ; Transcription Initiation Site
    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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    G protein subunit Galpha13 binds to integrin alphaIIbbeta3 and mediates integrin "outside-in" signaling (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-16
    Description: Integrins mediate cell adhesion to the extracellular matrix and transmit signals within the cell that stimulate cell spreading, retraction, migration, and proliferation. The mechanism of integrin outside-in signaling has been unclear. We found that the heterotrimeric guanine nucleotide-binding protein (G protein) Galpha13 directly bound to the integrin beta3 cytoplasmic domain and that Galpha13-integrin interaction was promoted by ligand binding to the integrin alphaIIbbeta3 and by guanosine triphosphate (GTP) loading of Galpha13. Interference of Galpha13 expression or a myristoylated fragment of Galpha13 that inhibited interaction of alphaIIbbeta3 with Galpha13 diminished activation of protein kinase c-Src and stimulated the small guanosine triphosphatase RhoA, consequently inhibiting cell spreading and accelerating cell retraction. We conclude that integrins are noncanonical Galpha13-coupled receptors that provide a mechanism for dynamic regulation of RhoA.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842917/" 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/PMC2842917/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, Haixia -- Shen, Bo -- Flevaris, Panagiotis -- Chow, Christina -- Lam, Stephen C-T -- Voyno-Yasenetskaya, Tatyana A -- Kozasa, Tohru -- Du, Xiaoping -- GM061454/GM/NIGMS NIH HHS/ -- GM074001/GM/NIGMS NIH HHS/ -- HL062350/HL/NHLBI NIH HHS/ -- HL068819/HL/NHLBI NIH HHS/ -- HL080264/HL/NHLBI NIH HHS/ -- R01 GM061454/GM/NIGMS NIH HHS/ -- R01 GM061454-09/GM/NIGMS NIH HHS/ -- R01 GM074001/GM/NIGMS NIH HHS/ -- R01 GM074001-02/GM/NIGMS NIH HHS/ -- R01 HL062350/HL/NHLBI NIH HHS/ -- R01 HL062350-09/HL/NHLBI NIH HHS/ -- R01 HL068819/HL/NHLBI NIH HHS/ -- R01 HL068819-08/HL/NHLBI NIH HHS/ -- R01 HL080264/HL/NHLBI NIH HHS/ -- R01 HL080264-04/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 15;327(5963):340-3. doi: 10.1126/science.1174779.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of Illinois at Chicago, 835 South Wolcott Avenue, Room E403, Chicago, IL 60612, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20075254" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Blood Platelets/*physiology ; Clot Retraction ; Fibrinogen/metabolism ; GTP-Binding Protein alpha Subunits, G12-G13/genetics/*metabolism ; Humans ; Integrin beta3/*metabolism ; Ligands ; Mice ; Mice, Inbred C57BL ; Phosphorylation ; Platelet Adhesiveness ; Platelet Glycoprotein GPIIb-IIIa Complex/*metabolism ; Protein Binding ; Protein Structure, Tertiary ; Proto-Oncogene Proteins pp60(c-src)/metabolism ; RNA, Small Interfering ; Recombinant Fusion Proteins/metabolism ; *Signal Transduction ; rhoA GTP-Binding Protein/antagonists & inhibitors/metabolism
    Print ISSN: 0036-8075
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  • 9
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    Cell signaling. Anchors away for ubiquitin chains (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-05
    Description: 〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3023166/" 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/PMC3023166/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Parvatiyar, Kislay -- Harhaj, Edward W -- R01 GM083143/GM/NIGMS NIH HHS/ -- R01 GM083143-03/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Jun 4;328(5983):1244-5. doi: 10.1126/science.1192296.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20522767" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/*metabolism ; Cell-Free System ; DEAD-box RNA Helicases/chemistry/*metabolism ; Humans ; Interferon Regulatory Factor-3/*metabolism ; Models, Biological ; Polyubiquitin/*metabolism ; Protein Binding ; RNA, Viral/*metabolism ; *Signal Transduction ; Transcription Factors/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Ubiquitination ; Virus Diseases/immunology/metabolism
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  • 10
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    Survivin reads phosphorylated histone H3 threonine 3 to activate the mitotic kinase Aurora B (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-14
    Description: A hallmark of mitosis is the appearance of high levels of histone phosphorylation, yet the roles of these modifications remain largely unknown. Here, we demonstrate that histone H3 phosphorylated at threonine 3 is directly recognized by an evolutionarily conserved binding pocket in the BIR domain of Survivin, which is a member of the chromosomal passenger complex (CPC). This binding mediates recruitment of the CPC to chromosomes and the resulting activation of its kinase subunit Aurora B. Consistently, modulation of the kinase activity of Haspin, which phosphorylates H3T3, leads to defects in the Aurora B-dependent processes of spindle assembly and inhibition of nuclear reformation. These findings establish a direct cellular role for mitotic histone H3T3 phosphorylation, which is read and translated by the CPC to ensure accurate cell division.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3177562/" 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/PMC3177562/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kelly, Alexander E -- Ghenoiu, Cristina -- Xue, John Z -- Zierhut, Christian -- Kimura, Hiroshi -- Funabiki, Hironori -- GM075249/GM/NIGMS NIH HHS/ -- R01 GM075249/GM/NIGMS NIH HHS/ -- R01 GM075249-01/GM/NIGMS NIH HHS/ -- R01 GM075249-02/GM/NIGMS NIH HHS/ -- R01 GM075249-03/GM/NIGMS NIH HHS/ -- R01 GM075249-04/GM/NIGMS NIH HHS/ -- R01 GM075249-05/GM/NIGMS NIH HHS/ -- R01 GM075249-05S1/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 8;330(6001):235-9. doi: 10.1126/science.1189505. Epub 2010 Aug 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chromosome and Cell Biology, The Rockefeller University, New York, NY 10065, USA. akelly@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20705815" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aurora Kinases ; Cell Division ; Centromere/metabolism ; Chromatin/metabolism ; Chromosomal Proteins, Non-Histone/metabolism ; Chromosomes/*metabolism ; Enzyme Activation ; Histones/*metabolism ; *Mitosis ; Molecular Sequence Data ; Phosphorylation ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein-Serine-Threonine Kinases/*metabolism ; Spindle Apparatus/metabolism ; Threonine/metabolism ; Xenopus Proteins/chemistry/*metabolism ; Xenopus laevis
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  • 11
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    Alpha-synuclein promotes SNARE-complex assembly in vivo and in vitro (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-28
    Description: Presynaptic nerve terminals release neurotransmitters repeatedly, often at high frequency, and in relative isolation from neuronal cell bodies. Repeated release requires cycles of soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE)-complex assembly and disassembly, with continuous generation of reactive SNARE-protein intermediates. Although many forms of neurodegeneration initiate presynaptically, only few pathogenic mechanisms are known, and the functions of presynaptic proteins linked to neurodegeneration, such as alpha-synuclein, remain unclear. Here, we show that maintenance of continuous presynaptic SNARE-complex assembly required a nonclassical chaperone activity mediated by synucleins. Specifically, alpha-synuclein directly bound to the SNARE-protein synaptobrevin-2/vesicle-associated membrane protein 2 (VAMP2) and promoted SNARE-complex assembly. Moreover, triple-knockout mice lacking synucleins developed age-dependent neurological impairments, exhibited decreased SNARE-complex assembly, and died prematurely. Thus, synucleins may function to sustain normal SNARE-complex assembly in a presynaptic terminal during aging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3235365/" 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/PMC3235365/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burre, Jacqueline -- Sharma, Manu -- Tsetsenis, Theodoros -- Buchman, Vladimir -- Etherton, Mark R -- Sudhof, Thomas C -- 075615/Wellcome Trust/United Kingdom -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1663-7. doi: 10.1126/science.1195227. Epub 2010 Aug 26.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular and Cellular Physiology, and Howard Hughes Medical Institute, Stanford University, 1050 Arastradero Road, Palo Alto, CA 94304-5543, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798282" target="_blank"〉PubMed〈/a〉
    Keywords: *Aging ; Animals ; Cell Line ; Cells, Cultured ; HSP40 Heat-Shock Proteins/metabolism ; Humans ; Membrane Fusion ; Membrane Proteins/metabolism ; Mice ; Mice, Knockout ; Mice, Transgenic ; Nerve Degeneration/*metabolism ; Neurons/*metabolism ; Presynaptic Terminals/*metabolism ; Protein Binding ; Rats ; Recombinant Fusion Proteins/metabolism ; SNARE Proteins/*metabolism ; Vesicle-Associated Membrane Protein 2/metabolism ; alpha-Synuclein/chemistry/genetics/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Immunology. CAR'ing for the skin (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shaw, Andrey S -- Huang, Yina -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1154-5. doi: 10.1126/science.1195337.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pathology and Immunology and Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, MO 63110, USA. shaw@pathology.wustl.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813941" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Adhesion Molecules/chemistry/*metabolism ; Coxsackie and Adenovirus Receptor-Like Membrane Protein ; Crystallization ; Epidermis/*immunology/metabolism/ultrastructure ; Hydrogen Bonding ; Ligands ; Lymphocyte Activation ; Mice ; Phosphatidylinositol 3-Kinases/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Receptors, Antigen, T-Cell, gamma-delta/*immunology/metabolism ; Receptors, Virus/chemistry/*metabolism ; Signal Transduction ; T-Lymphocyte Subsets/*immunology/*metabolism ; Tight Junctions/metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 13
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    Inhibition of NF-kappaB signaling by A20 through disruption of ubiquitin enzyme complexes (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-02-27
    Description: A20 negatively regulates inflammation by inhibiting the nuclear factor kappaB (NF-kappaB) transcription factor in the tumor necrosis factor-receptor (TNFR) and Toll-like receptor (TLR) pathways. A20 contains deubiquitinase and E3 ligase domains and thus has been proposed to function as a ubiquitin-editing enzyme downstream of TNFR1 by inactivating ubiquitinated RIP1. However, it remains unclear how A20 terminates NF-kappaB signaling downstream of TLRs. We have shown that A20 inhibited the E3 ligase activities of TRAF6, TRAF2, and cIAP1 by antagonizing interactions with the E2 ubiquitin conjugating enzymes Ubc13 and UbcH5c. A20, together with the regulatory molecule TAX1BP1, interacted with Ubc13 and UbcH5c and triggered their ubiquitination and proteasome-dependent degradation. These findings suggest mechanism of A20 action in the inhibition of inflammatory signaling pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3025292/" 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/PMC3025292/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Shembade, Noula -- Ma, Averil -- Harhaj, Edward W -- R01 CA135362/CA/NCI NIH HHS/ -- R01 CA135362-04/CA/NCI NIH HHS/ -- R01 DK071939/DK/NIDDK NIH HHS/ -- R01 DK071939-07/DK/NIDDK NIH HHS/ -- R01 GM083143/GM/NIGMS NIH HHS/ -- R01 GM083143-03/GM/NIGMS NIH HHS/ -- R01CA135362/CA/NCI NIH HHS/ -- R01GM083143/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 26;327(5969):1135-9. doi: 10.1126/science.1182364.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology and Immunology, Sylvester Comprehensive Cancer Center, The University of Miami, Miller School of Medicine, Miami, FL 33136, USA. nshembade@med.miami.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20185725" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Cells, Cultured ; Cysteine Endopeptidases/chemistry/genetics/*metabolism ; Gene Products, tax/metabolism ; Inflammation/*metabolism ; Inhibitor of Apoptosis Proteins/antagonists & inhibitors/metabolism ; Interleukin-1/immunology/metabolism ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/*metabolism ; Mice ; NF-kappa B/*metabolism ; Neoplasm Proteins/metabolism ; Proteasome Endopeptidase Complex/metabolism ; Protein Binding ; Receptor-Interacting Protein Serine-Threonine Kinases/metabolism ; Receptors, Tumor Necrosis Factor, Type I/metabolism ; *Signal Transduction ; TNF Receptor-Associated Factor 2/antagonists & inhibitors/metabolism ; TNF Receptor-Associated Factor 6/antagonists & inhibitors/metabolism ; Tumor Necrosis Factor-alpha/immunology/metabolism ; Ubiquitin-Conjugating Enzymes/*metabolism ; Ubiquitin-Protein Ligases/*antagonists & inhibitors/metabolism ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Zinc Fingers
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    Conserved fungal LysM effector Ecp6 prevents chitin-triggered immunity in plants (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-21
    Description: Multicellular organisms activate immunity upon recognition of pathogen-associated molecular patterns (PAMPs). Chitin is the major component of fungal cell walls, and chitin oligosaccharides act as PAMPs in plant and mammalian cells. Microbial pathogens deliver effector proteins to suppress PAMP-triggered host immunity and to establish infection. Here, we show that the LysM domain-containing effector protein Ecp6 of the fungal plant pathogen Cladosporium fulvum mediates virulence through perturbation of chitin-triggered host immunity. During infection, Ecp6 sequesters chitin oligosaccharides that are released from the cell walls of invading hyphae to prevent elicitation of host immunity. This may represent a common strategy of host immune suppression by fungal pathogens, because LysM effectors are widely conserved in the fungal kingdom.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉de Jonge, Ronnie -- van Esse, H Peter -- Kombrink, Anja -- Shinya, Tomonori -- Desaki, Yoshitake -- Bours, Ralph -- van der Krol, Sander -- Shibuya, Naoto -- Joosten, Matthieu H A J -- Thomma, Bart P H J -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):953-5. doi: 10.1126/science.1190859.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Phytopathology, Wageningen University, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724636" target="_blank"〉PubMed〈/a〉
    Keywords: Chitin/metabolism ; Chitinase/metabolism ; Cladosporium/immunology/*pathogenicity ; Fungal Proteins/chemistry/immunology/*physiology ; Lycopersicon esculentum/*immunology/microbiology ; Plant Diseases/immunology/microbiology ; Protein Binding ; Protein Structure, Tertiary ; Trichoderma/physiology
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    A general mechanism for network-dosage compensation in gene circuits (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: Coping with variations in network dosage is crucial for maintaining optimal function in gene networks. We explored how network structure facilitates network-level dosage compensation. By using the yeast galactose network as a model, we combinatorially deleted one of the two copies of its four regulatory genes and found that network activity was robust to the change in network dosage. A mathematical analysis revealed that a two-component genetic circuit with elements of opposite regulatory activity (activator and inhibitor) constitutes a minimal requirement for network-dosage invariance. Specific interaction topologies and a one-to-one interaction stoichiometry between the activating and inhibiting agents were additional essential elements facilitating dosage invariance. This mechanism of network-dosage invariance could represent a general design for gene network structure in cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3138731/" 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/PMC3138731/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Acar, Murat -- Pando, Bernardo F -- Arnold, Frances H -- Elowitz, Michael B -- van Oudenaarden, Alexander -- DP1 OD003936/OD/NIH HHS/ -- DP1 OD003936-02/OD/NIH HHS/ -- R01 DA028299/DA/NIDA NIH HHS/ -- R01 DA028299-02/DA/NIDA NIH HHS/ -- R01 GM068664/GM/NIGMS NIH HHS/ -- R01 GM068664-05A1/GM/NIGMS NIH HHS/ -- R01 GM068957/GM/NIGMS NIH HHS/ -- R01 GM068957-07/GM/NIGMS NIH HHS/ -- R01 GM079771/GM/NIGMS NIH HHS/ -- R01 GM079771-02/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Sep 24;329(5999):1656-60. doi: 10.1126/science.1190544.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Biology, California Institute of Technology, Pasadena, CA 91125, USA. acar@caltech.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929850" target="_blank"〉PubMed〈/a〉
    Keywords: DNA-Binding Proteins/*genetics/metabolism ; *Dosage Compensation, Genetic ; Feedback, Physiological ; Galactose/*metabolism ; Gene Expression Regulation, Fungal ; *Gene Regulatory Networks ; Genes, Fungal ; Genes, Regulator ; Models, Genetic ; Monosaccharide Transport Proteins/*genetics/metabolism ; Protein Binding ; Repressor Proteins/*genetics/metabolism ; Saccharomyces cerevisiae/*genetics/metabolism ; Saccharomyces cerevisiae Proteins/*genetics/metabolism ; Signal Transduction/genetics ; Transcription Factors/*genetics/metabolism
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  • 16
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    Mutations in DCC cause congenital mirror movements (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-05-01
    Description: Mirror movements are involuntary contralateral movements that mirror voluntary ones and are often associated with defects in midline crossing of the developing central nervous system. We studied two large families, one French Canadian and one Iranian, in which isolated congenital mirror movements were inherited as an autosomal dominant trait. We found that affected individuals carried protein-truncating mutations in DCC (deleted in colorectal carcinoma), a gene on chromosome 18q21.2 that encodes a receptor for netrin-1, a diffusible protein that helps guide axon growth across the midline. Functional analysis of the mutant DCC protein from the French Canadian family revealed a defect in netrin-1 binding. Thus, DCC has an important role in lateralization of the human nervous system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Srour, Myriam -- Riviere, Jean-Baptiste -- Pham, Jessica M T -- Dube, Marie-Pierre -- Girard, Simon -- Morin, Steves -- Dion, Patrick A -- Asselin, Geraldine -- Rochefort, Daniel -- Hince, Pascale -- Diab, Sabrina -- Sharafaddinzadeh, Naser -- Chouinard, Sylvain -- Theoret, Hugo -- Charron, Frederic -- Rouleau, Guy A -- New York, N.Y. -- Science. 2010 Apr 30;328(5978):592. doi: 10.1126/science.1186463.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center of Excellence in Neuromics, Universite de Montreal, Montreal, QC H2L 2W5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20431009" target="_blank"〉PubMed〈/a〉
    Keywords: Axons/physiology ; Codon, Terminator ; Dyskinesias/*congenital/*genetics ; Female ; *Frameshift Mutation ; Functional Laterality ; *Genes, DCC ; Genes, Dominant ; Genome-Wide Association Study ; Haplotypes ; Humans ; Male ; Mutant Proteins/chemistry/metabolism ; Nerve Growth Factors/metabolism ; Nervous System/growth & development ; Pedigree ; Protein Binding ; Receptors, Cell Surface/chemistry/genetics/*metabolism ; Tumor Suppressor Proteins/chemistry/genetics/*metabolism
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    Systematic analysis of human protein complexes identifies chromosome segregation proteins (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-03
    Description: Chromosome segregation and cell division are essential, highly ordered processes that depend on numerous protein complexes. Results from recent RNA interference screens indicate that the identity and composition of these protein complexes is incompletely understood. Using gene tagging on bacterial artificial chromosomes, protein localization, and tandem-affinity purification-mass spectrometry, the MitoCheck consortium has analyzed about 100 human protein complexes, many of which had not or had only incompletely been characterized. This work has led to the discovery of previously unknown, evolutionarily conserved subunits of the anaphase-promoting complex and the gamma-tubulin ring complex--large complexes that are essential for spindle assembly and chromosome segregation. The approaches we describe here are generally applicable to high-throughput follow-up analyses of phenotypic screens in mammalian cells.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2989461/" 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/PMC2989461/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hutchins, James R A -- Toyoda, Yusuke -- Hegemann, Bjorn -- Poser, Ina -- Heriche, Jean-Karim -- Sykora, Martina M -- Augsburg, Martina -- Hudecz, Otto -- Buschhorn, Bettina A -- Bulkescher, Jutta -- Conrad, Christian -- Comartin, David -- Schleiffer, Alexander -- Sarov, Mihail -- Pozniakovsky, Andrei -- Slabicki, Mikolaj Michal -- Schloissnig, Siegfried -- Steinmacher, Ines -- Leuschner, Marit -- Ssykor, Andrea -- Lawo, Steffen -- Pelletier, Laurence -- Stark, Holger -- Nasmyth, Kim -- Ellenberg, Jan -- Durbin, Richard -- Buchholz, Frank -- Mechtler, Karl -- Hyman, Anthony A -- Peters, Jan-Michael -- F 3407/Austrian Science Fund FWF/Austria -- New York, N.Y. -- Science. 2010 Apr 30;328(5978):593-9. doi: 10.1126/science.1181348. Epub 2010 Apr 1.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Research Institute of Molecular Pathology (IMP), Dr. Bohr-Gasse 7, A-1030 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20360068" target="_blank"〉PubMed〈/a〉
    Keywords: Anaphase-Promoting Complex-Cyclosome ; Centrosome/metabolism ; *Chromosome Segregation ; Chromosomes, Artificial, Bacterial ; Databases, Genetic ; Genomics ; Green Fluorescent Proteins ; HeLa Cells ; Humans ; *Mitosis ; Multiprotein Complexes/*metabolism ; Open Reading Frames ; Protein Binding ; Protein Interaction Mapping ; Protein Subunits/metabolism ; RNA Interference ; Spindle Apparatus/*metabolism ; Tubulin/*metabolism ; Ubiquitin-Protein Ligase Complexes/*metabolism
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    Structures of the CXCR4 chemokine GPCR with small-molecule and cyclic peptide antagonists (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: Chemokine receptors are critical regulators of cell migration in the context of immune surveillance, inflammation, and development. The G protein-coupled chemokine receptor CXCR4 is specifically implicated in cancer metastasis and HIV-1 infection. Here we report five independent crystal structures of CXCR4 bound to an antagonist small molecule IT1t and a cyclic peptide CVX15 at 2.5 to 3.2 angstrom resolution. All structures reveal a consistent homodimer with an interface including helices V and VI that may be involved in regulating signaling. The location and shape of the ligand-binding sites differ from other G protein-coupled receptors and are closer to the extracellular surface. These structures provide new clues about the interactions between CXCR4 and its natural ligand CXCL12, and with the HIV-1 glycoprotein gp120.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3074590/" 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/PMC3074590/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wu, Beili -- Chien, Ellen Y T -- Mol, Clifford D -- Fenalti, Gustavo -- Liu, Wei -- Katritch, Vsevolod -- Abagyan, Ruben -- Brooun, Alexei -- Wells, Peter -- Bi, F Christopher -- Hamel, Damon J -- Kuhn, Peter -- Handel, Tracy M -- Cherezov, Vadim -- Stevens, Raymond C -- F32 GM083463/GM/NIGMS NIH HHS/ -- F32 GM083463-03/GM/NIGMS NIH HHS/ -- GM075915/GM/NIGMS NIH HHS/ -- P50 GM073197/GM/NIGMS NIH HHS/ -- P50 GM073197-07/GM/NIGMS NIH HHS/ -- R01 AI037113/AI/NIAID NIH HHS/ -- R01 AI037113-13/AI/NIAID NIH HHS/ -- R01 GM071872/GM/NIGMS NIH HHS/ -- R01 GM081763/GM/NIGMS NIH HHS/ -- R01 GM081763-03/GM/NIGMS NIH HHS/ -- R01 GM089857/GM/NIGMS NIH HHS/ -- R21 AI087189/AI/NIAID NIH HHS/ -- R21 AI087189-02/AI/NIAID NIH HHS/ -- R21 RR025336/RR/NCRR NIH HHS/ -- R21 RR025336-01A1/RR/NCRR NIH HHS/ -- U54 GM074961/GM/NIGMS NIH HHS/ -- U54 GM074961-050001/GM/NIGMS NIH HHS/ -- U54 GM094618/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Nov 19;330(6007):1066-71. doi: 10.1126/science.1194396. Epub 2010 Oct 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929726" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell Line ; Chemokine CXCL12 ; Crystallography, X-Ray ; HIV Envelope Protein gp120/metabolism ; Humans ; Membrane Proteins ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Multimerization ; Receptors, CXCR4/antagonists & inhibitors/*chemistry/metabolism ; Recombinant Proteins/chemistry ; Spodoptera ; Thiourea/analogs & derivatives/chemistry
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  • 19
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    Siah regulation of Pard3A controls neuronal cell adhesion during germinal zone exit (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-27
    Description: The brain's circuitry is established by directed migration and synaptogenesis of neurons during development. Although neurons mature and migrate in specific patterns, little is known about how neurons exit their germinal zone niche. We found that cerebellar granule neuron germinal zone exit is regulated by proteasomal degradation of Pard3A by the Seven in Absentia homolog (Siah) E3 ubiquitin ligase. Pard3A gain of function and Siah loss of function induce precocious radial migration. Time-lapse imaging using a probe to measure neuronal cell contact reveals that Pard3A promotes adhesive interactions needed for germinal zone exit by recruiting the epithelial tight junction adhesion molecule C to the neuronal cell surface. Our findings define a Siah-Pard3A signaling pathway that controls adhesion-dependent exit of neuronal progenitors or immature neurons from a germinal zone niche.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3065828/" 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/PMC3065828/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Famulski, Jakub K -- Trivedi, Niraj -- Howell, Danielle -- Yang, Yuan -- Tong, Yiai -- Gilbertson, Richard -- Solecki, David J -- P01 CA096832/CA/NCI NIH HHS/ -- P01 CA096832-07/CA/NCI NIH HHS/ -- P30 CA021765/CA/NCI NIH HHS/ -- P30 CA021765-33/CA/NCI NIH HHS/ -- R01 CA129541/CA/NCI NIH HHS/ -- R01 CA129541-04/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2010 Dec 24;330(6012):1834-8. doi: 10.1126/science.1198480. Epub 2010 Nov 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Developmental Neurobiology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21109632" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Cell Adhesion ; Cell Adhesion Molecules/chemistry/*metabolism ; Cell Line ; *Cell Movement ; Cell Polarity ; Cerebellum/*cytology/embryology/*metabolism ; Dogs ; Humans ; Immunoglobulins/chemistry/metabolism ; Mice ; Morphogenesis ; Neurons/cytology/*physiology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; RNA Interference ; Signal Transduction ; Stem Cells/physiology ; Transfection ; Ubiquitin-Protein Ligases/genetics/*metabolism ; Ubiquitination
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 20
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    O-mannosyl phosphorylation of alpha-dystroglycan is required for laminin binding (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-02
    Description: Alpha-dystroglycan (alpha-DG) is a cell-surface glycoprotein that acts as a receptor for both extracellular matrix proteins containing laminin-G domains and certain arenaviruses. Receptor binding is thought to be mediated by a posttranslational modification, and defective binding with laminin underlies a subclass of congenital muscular dystrophy. Using mass spectrometry- and nuclear magnetic resonance (NMR)-based structural analyses, we identified a phosphorylated O-mannosyl glycan on the mucin-like domain of recombinant alpha-DG, which was required for laminin binding. We demonstrated that patients with muscle-eye-brain disease and Fukuyama congenital muscular dystrophy, as well as mice with myodystrophy, commonly have defects in a postphosphoryl modification of this phosphorylated O-linked mannose, and that this modification is mediated by the like-acetylglucosaminyltransferase (LARGE) protein. These findings expand our understanding of the mechanisms that underlie congenital muscular dystrophy.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2978000/" 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/PMC2978000/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida-Moriguchi, Takako -- Yu, Liping -- Stalnaker, Stephanie H -- Davis, Sarah -- Kunz, Stefan -- Madson, Michael -- Oldstone, Michael B A -- Schachter, Harry -- Wells, Lance -- Campbell, Kevin P -- 1U54NS053672/NS/NINDS NIH HHS/ -- AI55540/AI/NIAID NIH HHS/ -- P30 DK 54759/DK/NIDDK NIH HHS/ -- P30 DK054759/DK/NIDDK NIH HHS/ -- P41 RR018502/RR/NCRR NIH HHS/ -- R01 AI009484/AI/NIAID NIH HHS/ -- R01 AI009484-40/AI/NIAID NIH HHS/ -- R01 AI009484-41/AI/NIAID NIH HHS/ -- R01 AI045927/AI/NIAID NIH HHS/ -- R01 AI045927-08/AI/NIAID NIH HHS/ -- R01 AI045927-09/AI/NIAID NIH HHS/ -- R01 AI045927-10/AI/NIAID NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Jan 1;327(5961):88-92. doi: 10.1126/science.1180512.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Iowa Roy J. and Lucille A. Carver College of Medicine, 4283 Carver Biomedical Research Building, 285 Newton Road, Iowa City, IA 52242-1101, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20044576" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbohydrate Conformation ; Cell Line ; Dystroglycans/chemistry/*metabolism ; Glycosylation ; Humans ; Laminin/*metabolism ; Magnetic Resonance Spectroscopy ; Mannose/*metabolism ; Mass Spectrometry ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Muscle, Skeletal/metabolism ; Muscular Dystrophies/metabolism ; Muscular Dystrophy, Animal/metabolism ; N-Acetylglucosaminyltransferases/genetics/metabolism ; Phosphorylation ; Protein Binding ; Recombinant Proteins/chemistry/metabolism
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  • 21
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    Phosphatidic acid is a pH biosensor that links membrane biogenesis to metabolism (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-28
    Description: Recognition of lipids by proteins is important for their targeting and activation in many signaling pathways, but the mechanisms that regulate such interactions are largely unknown. Here, we found that binding of proteins to the ubiquitous signaling lipid phosphatidic acid (PA) depended on intracellular pH and the protonation state of its phosphate headgroup. In yeast, a rapid decrease in intracellular pH in response to glucose starvation regulated binding of PA to a transcription factor, Opi1, that coordinately repressed phospholipid metabolic genes. This enabled coupling of membrane biogenesis to nutrient availability.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Young, Barry P -- Shin, John J H -- Orij, Rick -- Chao, Jesse T -- Li, Shu Chen -- Guan, Xue Li -- Khong, Anthony -- Jan, Eric -- Wenk, Markus R -- Prinz, William A -- Smits, Gertien J -- Loewen, Christopher J R -- Canadian Institutes of Health Research/Canada -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1085-8. doi: 10.1126/science.1191026.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cellular and Physiological Sciences, University of British Columbia, Vancouver, British Columbia, V6T 1Z3, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798321" target="_blank"〉PubMed〈/a〉
    Keywords: Active Transport, Cell Nucleus ; Cation Transport Proteins/genetics/metabolism ; Cell Membrane/*metabolism ; Cell Nucleus/metabolism ; Endoplasmic Reticulum/metabolism ; Gene Expression Regulation, Fungal ; Genes, Fungal ; Glucose/metabolism ; Hydrogen-Ion Concentration ; Inositol/genetics/metabolism ; Liposomes/metabolism ; Mutation ; Phosphatidic Acids/*metabolism ; Protein Binding ; Protein Phosphatase 1/genetics/metabolism ; Proton-Translocating ATPases/genetics/metabolism ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/genetics/*metabolism ; Saccharomyces cerevisiae/genetics/growth & development/*metabolism ; Saccharomyces cerevisiae Proteins/genetics/*metabolism ; Signal Transduction ; Transcription, Genetic ; Vacuolar Proton-Translocating ATPases/genetics/metabolism
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    Conformational spread as a mechanism for cooperativity in the bacterial flagellar switch (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-02-06
    Description: The bacterial flagellar switch that controls the direction of flagellar rotation during chemotaxis has a highly cooperative response. This has previously been understood in terms of the classic two-state, concerted model of allosteric regulation. Here, we used high-resolution optical microscopy to observe switching of single motors and uncover the stochastic multistate nature of the switch. Our observations are in detailed quantitative agreement with a recent general model of allosteric cooperativity that exhibits conformational spread--the stochastic growth and shrinkage of domains of adjacent subunits sharing a particular conformational state. We expect that conformational spread will be important in explaining cooperativity in other large signaling complexes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bai, Fan -- Branch, Richard W -- Nicolau, Dan V Jr -- Pilizota, Teuta -- Steel, Bradley C -- Maini, Philip K -- Berry, Richard M -- BB/E00458X/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- BB/H01991X/1/Biotechnology and Biological Sciences Research Council/United Kingdom -- New York, N.Y. -- Science. 2010 Feb 5;327(5966):685-9. doi: 10.1126/science.1182105.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20133571" target="_blank"〉PubMed〈/a〉
    Keywords: Allosteric Regulation ; Bacterial Proteins/chemistry/metabolism ; Binding Sites ; Escherichia coli/metabolism ; Escherichia coli Proteins/*chemistry/*metabolism ; Flagella/*chemistry ; Membrane Proteins/chemistry/metabolism ; Models, Biological ; Models, Molecular ; Molecular Motor Proteins/*chemistry/*metabolism ; Monte Carlo Method ; Protein Binding ; Protein Conformation ; Protein Subunits/*chemistry/*metabolism ; Signal Transduction ; Thermodynamics
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  • 23
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    Rotational movement of the formin mDia1 along the double helical strand of an actin filament (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-12-15
    Description: Formin homology proteins (formins) elongate actin filaments (F-actin) by continuously associating with filament tips, potentially harnessing actin-generated pushing forces. During this processive elongation, formins are predicted to rotate along the axis of the double helical F-actin structure (referred to here as helical rotation), although this has not yet been definitively shown. We demonstrated helical rotation of the formin mDia1 by single-molecule fluorescence polarization (FL(P)). FL(P) of labeled F-actin, both elongating and depolymerizing from immobilized mDia1, oscillated with a periodicity corresponding to that of the F-actin long-pitch helix, and this was not altered by actin-bound nucleotides or the actin-binding protein profilin. Thus, helical rotation is an intrinsic property of formins. To harness pushing forces from growing F-actin, formins must be anchored flexibly to cell structures.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mizuno, Hiroaki -- Higashida, Chiharu -- Yuan, Yunfeng -- Ishizaki, Toshimasa -- Narumiya, Shuh -- Watanabe, Naoki -- New York, N.Y. -- Science. 2011 Jan 7;331(6013):80-3. doi: 10.1126/science.1197692. Epub 2010 Dec 9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Single-Molecule Cell Biology, Tohoku University Graduate School of Life Sciences, 6-3 Aoba, Aramaki-Aza, Aoba-ku, Sendai, Miyagi 980-8578, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21148346" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/chemistry/*metabolism/ultrastructure ; Actins/chemistry/*metabolism ; Adenosine Diphosphate/metabolism ; Adenosine Triphosphate/metabolism ; Animals ; Carrier Proteins/chemistry/*metabolism ; Fluorescence Polarization ; Mice ; Models, Biological ; Profilins/metabolism ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Secondary ; Rabbits ; Recombinant Fusion Proteins/chemistry/metabolism ; Rotation
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  • 24
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    Human SIRT6 promotes DNA end resection through CtIP deacetylation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-11
    Description: SIRT6 belongs to the sirtuin family of protein lysine deacetylases, which regulate aging and genome stability. We found that human SIRT6 has a role in promoting DNA end resection, a crucial step in DNA double-strand break (DSB) repair by homologous recombination. SIRT6 depletion impaired the accumulation of replication protein A and single-stranded DNA at DNA damage sites, reduced rates of homologous recombination, and sensitized cells to DSB-inducing agents. We identified the DSB resection protein CtIP [C-terminal binding protein (CtBP) interacting protein] as a SIRT6 interaction partner and showed that SIRT6-dependent CtIP deacetylation promotes resection. A nonacetylatable CtIP mutant alleviated the effect of SIRT6 depletion on resection, thus identifying CtIP as a key substrate by which SIRT6 facilitates DSB processing and homologous recombination. These findings further clarify how SIRT6 promotes genome stability.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3276839/" 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/PMC3276839/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kaidi, Abderrahmane -- Weinert, Brian T -- Choudhary, Chunaram -- Jackson, Stephen P -- 11224/Cancer Research UK/United Kingdom -- A5290/Cancer Research UK/United Kingdom -- Cancer Research UK/United Kingdom -- Wellcome Trust/United Kingdom -- New York, N.Y. -- Science. 2010 Sep 10;329(5997):1348-53. doi: 10.1126/science.1192049.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Gurdon Institute and Department of Biochemistry, University of Cambridge, Tennis Court Road, Cambridge CB2 1QN, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20829486" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Camptothecin/pharmacology ; Carrier Proteins/genetics/*metabolism ; Cell Cycle ; Cell Line ; Cell Line, Tumor ; Cell Proliferation ; DNA/*metabolism ; *DNA Breaks, Double-Stranded ; *DNA Repair ; DNA, Single-Stranded/metabolism ; Genomic Instability ; Humans ; Mice ; Mutant Proteins/metabolism ; Niacinamide/pharmacology ; Nuclear Proteins/genetics/*metabolism ; Protein Binding ; Recombination, Genetic/drug effects ; Sirtuins/genetics/*metabolism
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  • 25
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    Sequential checkpoints govern substrate selection during cotranslational protein targeting (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-05-08
    Description: Proper protein localization is essential for all cells. However, the precise mechanism by which high fidelity is achieved is not well understood for any protein-targeting pathway. To address this fundamental question, we investigated the signal recognition particle (SRP) pathway in Escherichia coli, which delivers proteins to the bacterial inner membrane through recognition of signal sequences on cargo proteins. Fidelity was thought to arise from the inability of SRP to bind strongly to incorrect cargos. Using biophysical assays, we found that incorrect cargos were also rejected through a series of checkpoints during subsequent steps of targeting. Thus, high fidelity of substrate selection is achieved through the cumulative effect of multiple checkpoints; this principle may be generally applicable to other pathways involving selective signal recognition.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760334/" 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/PMC3760334/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Xin -- Rashid, Rumana -- Wang, Kai -- Shan, Shu-ou -- GM078024/GM/NIGMS NIH HHS/ -- R01 GM078024/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 May 7;328(5979):757-60. doi: 10.1126/science.1186743.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20448185" target="_blank"〉PubMed〈/a〉
    Keywords: Cell Membrane/metabolism ; Escherichia coli/*metabolism ; Escherichia coli Proteins/chemistry/*metabolism ; Fluorescence Resonance Energy Transfer ; Guanosine Triphosphate/metabolism ; Hydrophobic and Hydrophilic Interactions ; Kinetics ; Models, Biological ; Protein Binding ; Protein Biosynthesis ; *Protein Sorting Signals ; *Protein Transport ; Ribosomes/metabolism ; Signal Recognition Particle/*metabolism ; Thermodynamics
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    Atomic structure of human adenovirus by cryo-EM reveals interactions among protein networks (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-08-28
    Description: Construction of a complex virus may involve a hierarchy of assembly elements. Here, we report the structure of the whole human adenovirus virion at 3.6 angstroms resolution by cryo-electron microscopy (cryo-EM), revealing in situ atomic models of three minor capsid proteins (IIIa, VIII, and IX), extensions of the (penton base and hexon) major capsid proteins, and interactions within three protein-protein networks. One network is mediated by protein IIIa at the vertices, within group-of-six (GOS) tiles--a penton base and its five surrounding hexons. Another is mediated by ropes (protein IX) that lash hexons together to form group-of-nine (GON) tiles and bind GONs to GONs. The third, mediated by IIIa and VIII, binds each GOS to five surrounding GONs. Optimization of adenovirus for cancer and gene therapy could target these networks.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3412078/" 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/PMC3412078/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Liu, Hongrong -- Jin, Lei -- Koh, Sok Boon S -- Atanasov, Ivo -- Schein, Stan -- Wu, Lily -- Zhou, Z Hong -- 1S10RR23057/RR/NCRR NIH HHS/ -- AI069015/AI/NIAID NIH HHS/ -- CA101904/CA/NCI NIH HHS/ -- GM071940/GM/NIGMS NIH HHS/ -- R01 AI069015/AI/NIAID NIH HHS/ -- R01 CA101904/CA/NCI NIH HHS/ -- R01 GM071940/GM/NIGMS NIH HHS/ -- S10 RR023057/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 Aug 27;329(5995):1038-43. doi: 10.1126/science.1187433.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles (UCLA), Los Angeles, CA 90095-7364, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20798312" target="_blank"〉PubMed〈/a〉
    Keywords: Adenoviruses, Human/*chemistry/genetics/metabolism/*ultrastructure ; Capsid/chemistry/ultrastructure ; Capsid Proteins/*chemistry/metabolism/ultrastructure ; Cryoelectron Microscopy ; Genome, Viral ; Image Processing, Computer-Assisted ; Models, Molecular ; Protein Binding ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Multimerization ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Virion/chemistry/ultrastructure
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  • 27
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    Structural insights into the assembly and function of the SAGA deubiquitinating module (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-17
    Description: SAGA is a transcriptional coactivator complex that is conserved across eukaryotes and performs multiple functions during transcriptional activation and elongation. One role is deubiquitination of histone H2B, and this activity resides in a distinct subcomplex called the deubiquitinating module (DUBm), which contains the ubiquitin-specific protease Ubp8, bound to Sgf11, Sus1, and Sgf73. The deubiquitinating activity depends on the presence of all four DUBm proteins. We report here the 1.90 angstrom resolution crystal structure of the DUBm bound to ubiquitin aldehyde, as well as the 2.45 angstrom resolution structure of the uncomplexed DUBm. The structure reveals an arrangement of protein domains that gives rise to a highly interconnected complex, which is stabilized by eight structural zinc atoms that are critical for enzymatic activity. The structure suggests a model for how interactions with the other DUBm proteins activate Ubp8 and allows us to speculate about how the DUBm binds to monoubiquitinated histone H2B in nucleosomes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4220450/" 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/PMC4220450/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Samara, Nadine L -- Datta, Ajit B -- Berndsen, Christopher E -- Zhang, Xiangbin -- Yao, Tingting -- Cohen, Robert E -- Wolberger, Cynthia -- F32GM089037/GM/NIGMS NIH HHS/ -- R01 GM095822/GM/NIGMS NIH HHS/ -- Y1-CO-1020/CO/NCI NIH HHS/ -- Y1-GM-1104/GM/NIGMS NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 May 21;328(5981):1025-9. doi: 10.1126/science.1190049. Epub 2010 Apr 15.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20395473" target="_blank"〉PubMed〈/a〉
    Keywords: Aldehydes/chemistry/metabolism ; Crystallography, X-Ray ; Endopeptidases/*chemistry/metabolism ; Histone Acetyltransferases/*chemistry/metabolism ; Histones/metabolism ; Models, Biological ; Models, Molecular ; Nuclear Proteins/*chemistry/metabolism ; Nucleosomes/chemistry/metabolism ; Protein Binding ; Protein Conformation ; Protein Structure, Tertiary ; RNA-Binding Proteins/*chemistry/metabolism ; Saccharomyces cerevisiae Proteins/*chemistry/metabolism ; Trans-Activators/*chemistry/metabolism ; Transcription Factors/*chemistry/metabolism ; Ubiquitin/chemistry/*metabolism ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Ubiquitins/chemistry/metabolism ; Zinc/chemistry/metabolism ; Zinc Fingers
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  • 28
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    The substrate of Greatwall kinase, Arpp19, controls mitosis by inhibiting protein phosphatase 2A (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-18
    Description: Initiation and maintenance of mitosis require the activation of protein kinase cyclin B-Cdc2 and the inhibition of protein phosphatase 2A (PP2A), which, respectively, phosphorylate and dephosphorylate mitotic substrates. The protein kinase Greatwall (Gwl) is required to maintain mitosis through PP2A inhibition. We describe how Gwl activation results in PP2A inhibition. We identified cyclic adenosine monophosphate-regulated phosphoprotein 19 (Arpp19) and alpha-Endosulfine as two substrates of Gwl that, when phosphorylated by this kinase, associate with and inhibit PP2A, thus promoting mitotic entry. Conversely, in the absence of Gwl activity, Arpp19 and alpha-Endosulfine are dephosphorylated and lose their capacity to bind and inhibit PP2A. Although both proteins can inhibit PP2A, endogenous Arpp19, but not alpha-Endosulfine, is responsible for PP2A inhibition at mitotic entry in Xenopus egg extracts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gharbi-Ayachi, Aicha -- Labbe, Jean-Claude -- Burgess, Andrew -- Vigneron, Suzanne -- Strub, Jean-Marc -- Brioudes, Estelle -- Van-Dorsselaer, Alain -- Castro, Anna -- Lorca, Thierry -- New York, N.Y. -- Science. 2010 Dec 17;330(6011):1673-7. doi: 10.1126/science.1197048.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Universites Montpellier 2 et 1, Centre de Recherche de Biochimie Macromoleculaire, CNRS UMR 5237, IFR 122, 1919 Route de Mende, 34293 Montpellier cedex 5, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21164014" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; HeLa Cells ; Humans ; Interphase ; *Mitosis ; Molecular Sequence Data ; Oocytes ; Peptides/chemistry/*metabolism ; Phosphoproteins/chemistry/*metabolism ; Phosphorylation ; Protein Binding ; Protein Phosphatase 2/*antagonists & inhibitors/metabolism ; Protein-Serine-Threonine Kinases/*metabolism ; Proto-Oncogene Proteins c-mos/metabolism ; Recombinant Fusion Proteins/metabolism ; Xenopus Proteins/antagonists & inhibitors/*metabolism ; Xenopus laevis
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    Regulation of alternative splicing by histone modifications (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-02-06
    Description: Alternative splicing of pre-mRNA is a prominent mechanism to generate protein diversity, yet its regulation is poorly understood. We demonstrated a direct role for histone modifications in alternative splicing. We found distinctive histone modification signatures that correlate with the splicing outcome in a set of human genes, and modulation of histone modifications causes splice site switching. Histone marks affect splicing outcome by influencing the recruitment of splicing regulators via a chromatin-binding protein. These results outline an adaptor system for the reading of histone marks by the pre-mRNA splicing machinery.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2913848/" 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/PMC2913848/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luco, Reini F -- Pan, Qun -- Tominaga, Kaoru -- Blencowe, Benjamin J -- Pereira-Smith, Olivia M -- Misteli, Tom -- MOP-67011/Canadian Institutes of Health Research/Canada -- R01 AG032134/AG/NIA NIH HHS/ -- R01 AG032134-01/AG/NIA NIH HHS/ -- R01 AG032134-02/AG/NIA NIH HHS/ -- R01 AG032134-03/AG/NIA NIH HHS/ -- R01 AG032134-04/AG/NIA NIH HHS/ -- ZIA BC010309-11/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Feb 19;327(5968):996-1000. doi: 10.1126/science.1184208. Epub 2010 Feb 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20133523" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Cell Line ; Chromatin/metabolism ; Epithelial Cells/metabolism ; Exons ; Histone-Lysine N-Methyltransferase/genetics/metabolism ; Histones/*metabolism ; Humans ; Male ; Mesenchymal Stromal Cells/metabolism ; Polypyrimidine Tract-Binding Protein/metabolism ; Prostate/cytology ; Protein Binding ; RNA Precursors/*metabolism ; Receptor, Fibroblast Growth Factor, Type 2/genetics ; Transcription Factors/genetics/metabolism
    Print ISSN: 0036-8075
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    The CRAC channel activator STIM1 binds and inhibits L-type voltage-gated calcium channels (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-10-12
    Description: Voltage- and store-operated calcium (Ca(2+)) channels are the major routes of Ca(2+) entry in mammalian cells, but little is known about how cells coordinate the activity of these channels to generate coherent calcium signals. We found that STIM1 (stromal interaction molecule 1), the main activator of store-operated Ca(2+) channels, directly suppresses depolarization-induced opening of the voltage-gated Ca(2+) channel Ca(V)1.2. STIM1 binds to the C terminus of Ca(V)1.2 through its Ca(2+) release-activated Ca(2+) activation domain, acutely inhibits gating, and causes long-term internalization of the channel from the membrane. This establishes a previously unknown function for STIM1 and provides a molecular mechanism to explain the reciprocal regulation of these two channels in cells.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Park, Chan Young -- Shcheglovitov, Aleksandr -- Dolmetsch, Ricardo -- DP1 OD003889/OD/NIH HHS/ -- DP1OD003889/OD/NIH HHS/ -- R01 NS048564/NS/NINDS NIH HHS/ -- R21MH087898/MH/NIMH NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 1;330(6000):101-5. doi: 10.1126/science.1191027.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, 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/20929812" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Calcium/metabolism ; Calcium Channels, L-Type/chemistry/genetics/*metabolism ; Calcium Signaling ; Cell Line ; Cell Membrane/*metabolism ; Humans ; Ion Channel Gating ; Jurkat Cells ; Membrane Proteins/chemistry/genetics/*metabolism ; Models, Biological ; Neoplasm Proteins/chemistry/genetics/*metabolism ; Neurons/*metabolism ; Patch-Clamp Techniques ; Protein Binding ; Protein Structure, Tertiary ; Rats ; Rats, Sprague-Dawley ; T-Lymphocytes/*metabolism
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    Long noncoding RNA as modular scaffold of histone modification complexes (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-07-10
    Description: Long intergenic noncoding RNAs (lincRNAs) regulate chromatin states and epigenetic inheritance. Here, we show that the lincRNA HOTAIR serves as a scaffold for at least two distinct histone modification complexes. A 5' domain of HOTAIR binds polycomb repressive complex 2 (PRC2), whereas a 3' domain of HOTAIR binds the LSD1/CoREST/REST complex. The ability to tether two distinct complexes enables RNA-mediated assembly of PRC2 and LSD1 and coordinates targeting of PRC2 and LSD1 to chromatin for coupled histone H3 lysine 27 methylation and lysine 4 demethylation. Our results suggest that lincRNAs may serve as scaffolds by providing binding surfaces to assemble select histone modification enzymes, thereby specifying the pattern of histone modifications on target genes.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2967777/" 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/PMC2967777/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tsai, Miao-Chih -- Manor, Ohad -- Wan, Yue -- Mosammaparast, Nima -- Wang, Jordon K -- Lan, Fei -- Shi, Yang -- Segal, Eran -- Chang, Howard Y -- R01 CA118750/CA/NCI NIH HHS/ -- R01 CA119176/CA/NCI NIH HHS/ -- R01 CA119176-05/CA/NCI NIH HHS/ -- R01-CA118487/CA/NCI NIH HHS/ -- R01-HG004361/HG/NHGRI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Aug 6;329(5992):689-93. doi: 10.1126/science.1192002. Epub 2010 Jul 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Program in Epithelial Biology, 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/20616235" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carrier Proteins/metabolism ; Cell Line ; Cells, Cultured ; Chromatin/*metabolism ; Chromatin Immunoprecipitation ; Co-Repressor Proteins ; DNA-Binding Proteins/*metabolism ; HeLa Cells ; Histone Demethylases/*metabolism ; Histones/*metabolism ; Humans ; Methylation ; Mutation ; Nerve Tissue Proteins/metabolism ; Nuclear Proteins/metabolism ; Nucleic Acid Conformation ; Polycomb Repressive Complex 2 ; Polycomb-Group Proteins ; Promoter Regions, Genetic ; Protein Binding ; RNA Interference ; RNA, Untranslated/chemistry/*metabolism ; Repressor Proteins/*metabolism ; Transcription Factors/*metabolism ; Transcription, Genetic
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    Biochemistry. Remote enzyme microsurgery (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-13
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bollinger, J Martin Jr -- Matthews, Megan L -- New York, N.Y. -- Science. 2010 Mar 12;327(5971):1337-8. doi: 10.1126/science.1187421.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, Pennsylvania State University, University Park, PA 16802, USA. jmb21@psu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20223975" target="_blank"〉PubMed〈/a〉
    Keywords: Catalytic Domain ; Enzyme Precursors/*chemistry/*metabolism ; Hemeproteins/chemistry/*metabolism ; Hydroxylation ; Indolequinones/*metabolism ; Models, Chemical ; Oxidation-Reduction ; Oxidoreductases Acting on CH-NH Group Donors/*chemistry/*metabolism ; Protein Binding ; Protein Conformation ; *Protein Processing, Post-Translational ; Tryptophan/*analogs & derivatives/chemistry/metabolism
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    Five-vertebrate ChIP-seq reveals the evolutionary dynamics of transcription factor binding (2010)
    American Association for the Advancement of Science (AAAS)
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    Publication Date: 2010-04-10
    Description: Transcription factors (TFs) direct gene expression by binding to DNA regulatory regions. To explore the evolution of gene regulation, we used chromatin immunoprecipitation with high-throughput sequencing (ChIP-seq) to determine experimentally the genome-wide occupancy of two TFs, CCAAT/enhancer-binding protein alpha and hepatocyte nuclear factor 4 alpha, in the livers of five vertebrates. Although each TF displays highly conserved DNA binding preferences, most binding is species-specific, and aligned binding events present in all five species are rare. Regions near genes with expression levels that are dependent on a TF are often bound by the TF in multiple species yet show no enhanced DNA sequence constraint. Binding divergence between species can be largely explained by sequence changes to the bound motifs. Among the binding events lost in one lineage, only half are recovered by another binding event within 10 kilobases. Our results reveal large interspecies differences in transcriptional regulation and provide insight into regulatory evolution.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3008766/" 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/PMC3008766/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schmidt, Dominic -- Wilson, Michael D -- Ballester, Benoit -- Schwalie, Petra C -- Brown, Gordon D -- Marshall, Aileen -- Kutter, Claudia -- Watt, Stephen -- Martinez-Jimenez, Celia P -- Mackay, Sarah -- Talianidis, Iannis -- Flicek, Paul -- Odom, Duncan T -- 062023/Wellcome Trust/United Kingdom -- 079643/Wellcome Trust/United Kingdom -- 15603/Cancer Research UK/United Kingdom -- 202218/European Research Council/International -- A15603/Cancer Research UK/United Kingdom -- WT062023/Wellcome Trust/United Kingdom -- WT079643/Wellcome Trust/United Kingdom -- Cancer Research UK/United Kingdom -- New York, N.Y. -- Science. 2010 May 21;328(5981):1036-40. doi: 10.1126/science.1186176. Epub 2010 Apr 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378774" target="_blank"〉PubMed〈/a〉
    Keywords: Algorithms ; Animals ; Base Sequence ; Binding Sites ; Biological Evolution ; CCAAT-Enhancer-Binding Protein-alpha/*metabolism ; Chickens/genetics ; Chromatin Immunoprecipitation ; DNA/genetics/metabolism ; Dogs ; *Evolution, Molecular ; *Gene Expression Regulation ; *Genome ; Genome, Human ; Hepatocyte Nuclear Factor 4/*metabolism ; Humans ; Liver/*metabolism ; Mice ; Opossums/genetics ; Protein Binding ; Regulatory Sequences, Nucleic Acid ; Sequence Analysis, DNA ; Species Specificity ; Vertebrates/*genetics/metabolism
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    Cbln1 is a ligand for an orphan glutamate receptor delta2, a bidirectional synapse organizer (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-17
    Description: Cbln1, secreted from cerebellar granule cells, and the orphan glutamate receptor delta2 (GluD2), expressed by Purkinje cells, are essential for synapse integrity between these neurons in adult mice. Nevertheless, no endogenous binding partners for these molecules have been identified. We found that Cbln1 binds directly to the N-terminal domain of GluD2. GluD2 expression by postsynaptic cells, combined with exogenously applied Cbln1, was necessary and sufficient to induce new synapses in vitro and in the adult cerebellum in vivo. Further, beads coated with recombinant Cbln1 directly induced presynaptic differentiation and indirectly caused clustering of postsynaptic molecules via GluD2. These results indicate that the Cbln1-GluD2 complex is a unique synapse organizer that acts bidirectionally on both pre- and postsynaptic components.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuda, Keiko -- Miura, Eriko -- Miyazaki, Taisuke -- Kakegawa, Wataru -- Emi, Kyoichi -- Narumi, Sakae -- Fukazawa, Yugo -- Ito-Ishida, Aya -- Kondo, Tetsuro -- Shigemoto, Ryuichi -- Watanabe, Masahiko -- Yuzaki, Michisuke -- New York, N.Y. -- Science. 2010 Apr 16;328(5976):363-8. doi: 10.1126/science.1185152.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Physiology, School of Medicine, Keio University, Tokyo 160-8582, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20395510" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Binding Sites ; Cell Line ; Cells, Cultured ; Cerebellum/cytology/*physiology ; Coculture Techniques ; Excitatory Postsynaptic Potentials ; Humans ; Ligands ; Mice ; Nerve Tissue Proteins/*metabolism ; Presynaptic Terminals/physiology ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein Precursors/*metabolism ; Purkinje Cells/metabolism/*physiology ; Rats ; Receptors, Glutamate/chemistry/*metabolism ; Recombinant Fusion Proteins/metabolism ; Synapses/*physiology ; Synaptic Membranes/metabolism
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    Reprogramming cellular behavior with RNA controllers responsive to endogenous proteins (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-11-27
    Description: Synthetic genetic devices that interface with native cellular pathways can be used to change natural networks to implement new forms of control and behavior. The engineering of gene networks has been limited by an inability to interface with native components. We describe a class of RNA control devices that overcome these limitations by coupling increased abundance of particular proteins to targeted gene expression events through the regulation of alternative RNA splicing. We engineered RNA devices that detect signaling through the nuclear factor kappaB and Wnt signaling pathways in human cells and rewire these pathways to produce new behaviors, thereby linking disease markers to noninvasive sensing and reprogrammed cellular fates. Our work provides a genetic platform that can build programmable sensing-actuation devices enabling autonomous control over cellular behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3171693/" 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/PMC3171693/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Culler, Stephanie J -- Hoff, Kevin G -- Smolke, Christina D -- RC1 GM091298/GM/NIGMS NIH HHS/ -- RC1 GM091298-01/GM/NIGMS NIH HHS/ -- RC1 GM091298-02/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Nov 26;330(6008):1251-5. doi: 10.1126/science.1192128.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Chemistry and Chemical Engineering, 1200 East California Boulevard, MC 210-41, California Institute of Technology, Pasadena, CA 91125, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21109673" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Apoptosis ; Aptamers, Nucleotide/chemistry/genetics/*metabolism ; Capsid Proteins/metabolism ; Cell Line ; Cell Nucleus/metabolism ; Exons ; Ganciclovir/pharmacology ; *Gene Expression Regulation ; Gene Regulatory Networks ; *Genetic Engineering ; Green Fluorescent Proteins/genetics ; Humans ; Introns ; Ligands ; Mutation ; NF-kappa B p50 Subunit/genetics/metabolism ; Protein Binding ; Signal Transduction ; Survival of Motor Neuron 1 Protein/genetics ; Transcription Factor RelA/genetics/metabolism ; Transfection ; Wnt Proteins/metabolism ; beta Catenin/genetics/metabolism
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    A NusE:NusG complex links transcription and translation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-24
    Description: Bacterial NusG is a highly conserved transcription factor that is required for most Rho activity in vivo. We show by nuclear magnetic resonance spectroscopy that Escherichia coli NusG carboxyl-terminal domain forms a complex alternatively with Rho or with transcription factor NusE, a protein identical to 30S ribosomal protein S10. Because NusG amino-terminal domain contacts RNA polymerase and the NusG carboxy-terminal domain interaction site of NusE is accessible in the ribosomal 30S subunit, NusG may act as a link between transcription and translation. Uncoupling of transcription and translation at the ends of bacterial operons enables transcription termination by Rho factor, and competition between ribosomal NusE and Rho for NusG helps to explain why Rho cannot terminate translated transcripts.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Burmann, Bjorn M -- Schweimer, Kristian -- Luo, Xiao -- Wahl, Markus C -- Stitt, Barbara L -- Gottesman, Max E -- Rosch, Paul -- GM037219/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Apr 23;328(5977):501-4. doi: 10.1126/science.1184953.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lehrstuhl Biopolymere und Forschungszentrum fur Bio-Makromolekule, Universitat Bayreuth, Universitatsstrasse 30, 95447 Bayreuth, Germany.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20413501" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Binding Sites ; Binding, Competitive ; DNA-Directed RNA Polymerases/metabolism ; Escherichia coli/genetics/*metabolism ; Escherichia coli Proteins/biosynthesis/chemistry/*genetics/metabolism ; Hydrophobic and Hydrophilic Interactions ; Models, Molecular ; Molecular Sequence Data ; Nuclear Magnetic Resonance, Biomolecular ; Operon ; Peptide Elongation Factors/chemistry/*metabolism ; Protein Binding ; *Protein Biosynthesis ; Protein Conformation ; Protein Interaction Domains and Motifs ; Protein Structure, Tertiary ; Ribosomal Proteins/chemistry/*metabolism ; Ribosome Subunits, Small, Bacterial/metabolism ; Transcription Factors/chemistry/*metabolism ; *Transcription, Genetic
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    Heritable individual-specific and allele-specific chromatin signatures in humans (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-03-20
    Description: The extent to which variation in chromatin structure and transcription factor binding may influence gene expression, and thus underlie or contribute to variation in phenotype, is unknown. To address this question, we cataloged both individual-to-individual variation and differences between homologous chromosomes within the same individual (allele-specific variation) in chromatin structure and transcription factor binding in lymphoblastoid cells derived from individuals of geographically diverse ancestry. Ten percent of active chromatin sites were individual-specific; a similar proportion were allele-specific. Both individual-specific and allele-specific sites were commonly transmitted from parent to child, which suggests that they are heritable features of the human genome. Our study shows that heritable chromatin status and transcription factor binding differ as a result of genetic variation and may underlie phenotypic variation in humans.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2929018/" 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/PMC2929018/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McDaniell, Ryan -- Lee, Bum-Kyu -- Song, Lingyun -- Liu, Zheng -- Boyle, Alan P -- Erdos, Michael R -- Scott, Laura J -- Morken, Mario A -- Kucera, Katerina S -- Battenhouse, Anna -- Keefe, Damian -- Collins, Francis S -- Willard, Huntington F -- Lieb, Jason D -- Furey, Terrence S -- Crawford, Gregory E -- Iyer, Vishwanath R -- Birney, Ewan -- U54 HG004563/HG/NHGRI NIH HHS/ -- U54 HG004563-03/HG/NHGRI NIH HHS/ -- Z01 HG000024/HG/NHGRI NIH HHS/ -- Z01 HG000024-13/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2010 Apr 9;328(5975):235-9. doi: 10.1126/science.1184655. Epub 2010 Mar 18.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Systems and Synthetic Biology, Institute for Cellular and Molecular Biology, Section of Molecular Genetics and Microbiology, University of Texas, Austin, TX 78712, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20299549" target="_blank"〉PubMed〈/a〉
    Keywords: African Continental Ancestry Group ; *Alleles ; Binding Sites ; Cell Line ; Chromatin/chemistry/*genetics/*metabolism ; Chromatin Immunoprecipitation ; Chromosomes, Human/genetics/metabolism ; Chromosomes, Human, X/genetics/metabolism ; Deoxyribonuclease I/metabolism ; European Continental Ancestry Group ; Female ; *Gene Expression Regulation ; *Genetic Variation ; Humans ; Male ; Nuclear Family ; Polymorphism, Single Nucleotide ; Protein Binding ; Regulatory Elements, Transcriptional ; Repressor Proteins/*metabolism ; Sequence Analysis, DNA ; Transcription Factors/*metabolism ; X Chromosome Inactivation
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    Reconstitution of outer membrane protein assembly from purified components (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-04-10
    Description: Beta-barrel membrane proteins in Gram-negative bacteria, mitochondria, and chloroplasts are assembled by highly conserved multi-protein complexes. The mechanism by which these molecular machines fold and insert their substrates is poorly understood. It has not been possible to dissect the folding and insertion pathway because the process has not been reproduced in a biochemical system. We purified the components that fold and insert Escherichia coli outer membrane proteins and reconstituted beta-barrel protein assembly in proteoliposomes using the enzymatic activity of a protein substrate to report on its folding state. The assembly of this protein occurred without an energy source but required a soluble chaperone in addition to the multi-protein assembly complex.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2873164/" 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/PMC2873164/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hagan, Christine L -- Kim, Seokhee -- Kahne, Daniel -- AI081059/AI/NIAID NIH HHS/ -- R01 AI081059/AI/NIAID NIH HHS/ -- R01 AI081059-01/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 May 14;328(5980):890-2. doi: 10.1126/science.1188919. Epub 2010 Apr 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20378773" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Outer Membrane Proteins/*chemistry/*metabolism ; Carrier Proteins/chemistry/metabolism ; Escherichia coli Proteins/*chemistry/*metabolism ; Lipoproteins/chemistry/metabolism ; Liposomes/*chemistry ; Molecular Chaperones/chemistry/metabolism ; Multiprotein Complexes/chemistry/metabolism ; Peptide Hydrolases/*chemistry/*metabolism ; Peptidylprolyl Isomerase/chemistry/metabolism ; Protein Binding ; Protein Folding ; Protein Structure, Tertiary ; Protein Transport ; Proteolipids/chemistry
    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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  • 39
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    Kinetic scaffolding mediated by a phospholipase C-beta and Gq signaling complex (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-23
    Description: Transmembrane signals initiated by a broad range of extracellular stimuli converge on nodes that regulate phospholipase C (PLC)-dependent inositol lipid hydrolysis for signal propagation. We describe how heterotrimeric guanine nucleotide-binding proteins (G proteins) activate PLC-betas and in turn are deactivated by these downstream effectors. The 2.7-angstrom structure of PLC-beta3 bound to activated Galpha(q) reveals a conserved module found within PLC-betas and other effectors optimized for rapid engagement of activated G proteins. The active site of PLC-beta3 in the complex is occluded by an intramolecular plug that is likely removed upon G protein-dependent anchoring and orientation of the lipase at membrane surfaces. A second domain of PLC-beta3 subsequently accelerates guanosine triphosphate hydrolysis by Galpha(q), causing the complex to dissociate and terminate signal propagation. Mutations within this domain dramatically delay signal termination in vitro and in vivo. Consequently, this work suggests a dynamic catch-and-release mechanism used to sharpen spatiotemporal signals mediated by diverse sensory inputs.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3046049/" 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/PMC3046049/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Waldo, Gary L -- Ricks, Tiffany K -- Hicks, Stephanie N -- Cheever, Matthew L -- Kawano, Takeharu -- Tsuboi, Kazuhito -- Wang, Xiaoyue -- Montell, Craig -- Kozasa, Tohru -- Sondek, John -- Harden, T Kendall -- EY010852/EY/NEI NIH HHS/ -- GM074001/GM/NIGMS NIH HHS/ -- GM38213/GM/NIGMS NIH HHS/ -- GM57391/GM/NIGMS NIH HHS/ -- GM61454/GM/NIGMS NIH HHS/ -- R01 GM057391/GM/NIGMS NIH HHS/ -- R01 GM057391-13/GM/NIGMS NIH HHS/ -- R01 GM062299/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Nov 12;330(6006):974-80. doi: 10.1126/science.1193438. Epub 2010 Oct 21.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20966218" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Catalytic Domain ; Crystallography, X-Ray ; Enzyme Activation ; GTP-Binding Protein alpha Subunits, Gq-G11/*chemistry/*metabolism ; Guanosine Triphosphate/metabolism ; Humans ; Hydrogen Bonding ; Hydrolysis ; Isoenzymes/chemistry/metabolism ; Kinetics ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutagenesis ; Phospholipase C beta/*chemistry/metabolism ; Protein Binding ; Protein Structure, Tertiary ; Recombinant Fusion Proteins/chemistry/metabolism ; Signal Transduction
    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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    Histone H3 Thr-3 phosphorylation by Haspin positions Aurora B at centromeres in mitosis (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-14
    Description: Aurora B is a component of the chromosomal passenger complex (CPC) required for correct spindle-kinetochore attachments during chromosome segregation and for cytokinesis. The chromatin factors that recruit the CPC to centromeres are unknown, however. Here we show that phosphorylation of histone H3 threonine 3 (H3T3ph) by Haspin is necessary for CPC accumulation at centromeres and that the CPC subunit Survivin binds directly to H3T3ph. A nonbinding Survivin-D70A/D71A mutant does not support centromeric CPC concentration, and both Haspin depletion and Survivin-D70A/D71A mutation diminish centromere localization of the kinesin MCAK and the mitotic checkpoint response to taxol. Survivin-D70A/D71A mutation and microinjection of H3T3ph-specific antibody both compromise centromeric Aurora B functions but do not prevent cytokinesis. Therefore, H3T3ph generated by Haspin positions the CPC at centromeres to regulate selected targets of Aurora B during mitosis.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2967368/" 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/PMC2967368/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Fangwei -- Dai, Jun -- Daum, John R -- Niedzialkowska, Ewa -- Banerjee, Budhaditya -- Stukenberg, P Todd -- Gorbsky, Gary J -- Higgins, Jonathan M G -- R01 GM050412/GM/NIGMS NIH HHS/ -- R01 GM050412-16/GM/NIGMS NIH HHS/ -- R01 GM063045/GM/NIGMS NIH HHS/ -- R01 GM063045-10/GM/NIGMS NIH HHS/ -- R01 GM074210/GM/NIGMS NIH HHS/ -- R01 GM074210-04/GM/NIGMS NIH HHS/ -- R01-GM050412/GM/NIGMS NIH HHS/ -- R01-GM063045/GM/NIGMS NIH HHS/ -- R01-GM074210/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 8;330(6001):231-5. doi: 10.1126/science.1189435. Epub 2010 Aug 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, Smith Building, 1 Jimmy Fund Way, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20705812" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Aurora Kinase B ; Aurora Kinases ; Cell Cycle Proteins/metabolism ; Cell Line ; Cell Line, Tumor ; Centromere/*metabolism ; Chromatin/*metabolism ; HeLa Cells ; Histones/*metabolism ; Humans ; Inhibitor of Apoptosis Proteins ; Intracellular Signaling Peptides and Proteins/genetics/*metabolism ; Kinesin/metabolism ; Kinetochores/metabolism ; Microtubule-Associated Proteins/chemistry/genetics/*metabolism ; *Mitosis ; Mutation ; Phosphorylation ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein-Serine-Threonine Kinases/genetics/*metabolism ; RNA Interference ; Recombinant Proteins/metabolism ; Spindle Apparatus/metabolism ; Swine ; Threonine/metabolism ; Xenopus
    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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  • 41
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    The junctional adhesion molecule JAML is a costimulatory receptor for epithelial gammadelta T cell activation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-09-04
    Description: Gammadelta T cells present in epithelial tissues provide a crucial first line of defense against environmental insults, including infection, trauma, and malignancy, yet the molecular events surrounding their activation remain poorly defined. Here we identify an epithelial gammadelta T cell-specific costimulatory molecule, junctional adhesion molecule-like protein (JAML). Binding of JAML to its ligand Coxsackie and adenovirus receptor (CAR) provides costimulation leading to cellular proliferation and cytokine and growth factor production. Inhibition of JAML costimulation leads to diminished gammadelta T cell activation and delayed wound closure akin to that seen in the absence of gammadelta T cells. Our results identify JAML as a crucial component of epithelial gammadelta T cell biology and have broader implications for CAR and JAML in tissue homeostasis and repair.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2943937/" 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/PMC2943937/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Witherden, Deborah A -- Verdino, Petra -- Rieder, Stephanie E -- Garijo, Olivia -- Mills, Robyn E -- Teyton, Luc -- Fischer, Wolfgang H -- Wilson, Ian A -- Havran, Wendy L -- AI064811/AI/NIAID NIH HHS/ -- AI42266/AI/NIAID NIH HHS/ -- AI52257/AI/NIAID NIH HHS/ -- CA58896/CA/NCI NIH HHS/ -- NS057096/NS/NINDS NIH HHS/ -- R01 AI036964/AI/NIAID NIH HHS/ -- R01 AI052257/AI/NIAID NIH HHS/ -- R01 AI052257-05/AI/NIAID NIH HHS/ -- R01 AI064811/AI/NIAID NIH HHS/ -- R01 AI064811-05/AI/NIAID NIH HHS/ -- R01 GM080301/GM/NIGMS NIH HHS/ -- R37 AI042266/AI/NIAID NIH HHS/ -- New York, N.Y. -- Science. 2010 Sep 3;329(5996):1205-10. doi: 10.1126/science.1192698.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20813954" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Motifs ; Animals ; Cell Adhesion Molecules/*metabolism ; Cell Line ; Cell Proliferation ; Coxsackie and Adenovirus Receptor-Like Membrane Protein ; Cytokines/metabolism ; Epidermis/cytology/*immunology/injuries ; Epithelial Cells ; Epithelium/immunology/metabolism ; Intercellular Signaling Peptides and Proteins/metabolism ; Keratinocytes/metabolism ; Ligands ; *Lymphocyte Activation ; Mice ; Mice, Inbred C57BL ; Phosphatidylinositol 3-Kinases/metabolism ; Protein Binding ; Receptors, Antigen, T-Cell, gamma-delta/*immunology/metabolism ; Receptors, Virus/*metabolism ; T-Lymphocyte Subsets/*immunology/*metabolism ; Wound Healing
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    Two histone marks establish the inner centromere and chromosome bi-orientation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-12
    Description: For proper partitioning of chromosomes in mitosis, the chromosomal passenger complex (CPC) including Aurora B and survivin must be localized at the center of paired kinetochores, at the site called the inner centromere. It is largely unknown what defines the inner centromere and how the CPC is targeted to this site. Here, we show that the phosphorylation of histone H3-threonine 3 (H3-pT3) mediated by Haspin cooperates with Bub1-mediated histone 2A-serine 121 (H2A-S121) phosphorylation in targeting the CPC to the inner centromere in fission yeast and human cells. H3-pT3 promotes nucleosome binding of survivin, whereas phosphorylated H2A-S121 facilitates the binding of shugoshin, the centromeric CPC adaptor. Haspin colocalizes with cohesin by associating with Pds5, whereas Bub1 localizes at kinetochores. Thus, the inner centromere is defined by intersection of two histone kinases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamagishi, Yuya -- Honda, Takashi -- Tanno, Yuji -- Watanabe, Yoshinori -- New York, N.Y. -- Science. 2010 Oct 8;330(6001):239-43. doi: 10.1126/science.1194498.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chromosome Dynamics, Institute of Molecular and Cellular Biosciences, University of Tokyo, Yayoi, Tokyo 113-0032, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20929775" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Aurora Kinase B ; Aurora Kinases ; Cell Cycle Proteins/metabolism ; Centromere/*metabolism ; Chromatin/metabolism ; Chromosomal Proteins, Non-Histone/metabolism ; Chromosome Segregation ; Chromosomes, Fungal/*physiology ; Chromosomes, Human/*physiology ; HeLa Cells ; Heterochromatin/metabolism ; Histones/*metabolism ; Humans ; Inhibitor of Apoptosis Proteins ; Intracellular Signaling Peptides and Proteins/chemistry/genetics/*metabolism ; Kinetochores/metabolism ; Microtubule-Associated Proteins/metabolism ; Mitosis ; Molecular Sequence Data ; Mutation ; Nucleosomes/metabolism ; Phosphorylation ; Protein Binding ; Protein Interaction Domains and Motifs ; Protein-Serine-Threonine Kinases/chemistry/genetics/*metabolism ; Schizosaccharomyces/*genetics/metabolism ; Schizosaccharomyces pombe Proteins/genetics/*metabolism ; Serine/metabolism ; Threonine/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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    Chloroplasts divide by contraction of a bundle of nanofilaments consisting of polyglucan (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-08-21
    Description: In chloroplast division, the plastid-dividing (PD) ring is a main structure of the PD machinery and is a universal structure in the plant kingdom. However, the components and formation of the PD ring have been enigmatic. By proteomic analysis of PD machineries isolated from Cyanidioschyzon merolae, we identified the glycosyltransferase protein plastid-dividing ring 1 (PDR1), which constructs the PD ring and is widely conserved from red alga to land plants. Electron microscopy showed that the PDR1 protein forms a ring with carbohydrates at the chloroplast-division site. Fluorometric saccharide ingredient analysis of purified PD ring filaments showed that only glucose was included, and down-regulation of PDR1 impaired chloroplast division. Thus, the chloroplasts are divided by the PD ring, which is a bundle of PDR1-mediated polyglucan filaments.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yoshida, Yamato -- Kuroiwa, Haruko -- Misumi, Osami -- Yoshida, Masaki -- Ohnuma, Mio -- Fujiwara, Takayuki -- Yagisawa, Fumi -- Hirooka, Shunsuke -- Imoto, Yuuta -- Matsushita, Kazunobu -- Kawano, Shigeyuki -- Kuroiwa, Tsuneyoshi -- New York, N.Y. -- Science. 2010 Aug 20;329(5994):949-53. doi: 10.1126/science.1190791.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cell Biology, Department of Life Science, College of Science, Research Information Center for Extremophile, Rikkyo University, Toshima, Tokyo 171-8501, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20724635" target="_blank"〉PubMed〈/a〉
    Keywords: Algal Proteins/genetics/isolation & purification/*physiology ; Chloroplasts/chemistry/*physiology/ultrastructure ; Cytoskeleton/chemistry/*physiology ; Down-Regulation ; Glucans/isolation & purification/*physiology ; Glycosyltransferases/genetics/isolation & purification/*physiology ; Protein Binding ; Proteomics ; Rhodophyta/genetics/*physiology/ultrastructure ; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
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    Visualizing ribosome biogenesis: parallel assembly pathways for the 30S subunit (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-10-30
    Description: Ribosomes are self-assembling macromolecular machines that translate DNA into proteins, and an understanding of ribosome biogenesis is central to cellular physiology. Previous studies on the Escherichia coli 30S subunit suggest that ribosome assembly occurs via multiple parallel pathways rather than through a single rate-limiting step, but little mechanistic information is known about this process. Discovery single-particle profiling (DSP), an application of time-resolved electron microscopy, was used to obtain more than 1 million snapshots of assembling 30S subunits, identify and visualize the structures of 14 assembly intermediates, and monitor the population flux of these intermediates over time. DSP results were integrated with mass spectrometry data to construct the first ribosome-assembly mechanism that incorporates binding dependencies, rate constants, and structural characterization of populated intermediates.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990404/" 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/PMC2990404/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulder, Anke M -- Yoshioka, Craig -- Beck, Andrea H -- Bunner, Anne E -- Milligan, Ronald A -- Potter, Clinton S -- Carragher, Bridget -- Williamson, James R -- GM-52468/GM/NIGMS NIH HHS/ -- P41 RR017573/RR/NCRR NIH HHS/ -- P41 RR017573-10/RR/NCRR NIH HHS/ -- R01 GM052468/GM/NIGMS NIH HHS/ -- R01 GM052468-16/GM/NIGMS NIH HHS/ -- R01 RR023093/RR/NCRR NIH HHS/ -- R01 RR023093-09/RR/NCRR NIH HHS/ -- R37 GM053757/GM/NIGMS NIH HHS/ -- R37 GM053757-16/GM/NIGMS NIH HHS/ -- R37-GM-53757/GM/NIGMS NIH HHS/ -- RR023093/RR/NCRR NIH HHS/ -- RR175173/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 29;330(6004):673-7. doi: 10.1126/science.1193220.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21030658" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry/metabolism ; Image Processing, Computer-Assisted ; Kinetics ; Mass Spectrometry ; Microscopy, Electron/methods ; Models, Molecular ; Nucleic Acid Conformation ; Protein Binding ; Protein Conformation ; RNA, Bacterial/chemistry ; RNA, Ribosomal/chemistry ; Ribosomal Proteins/chemistry/*metabolism ; Ribosome Subunits, Small, Bacterial/chemistry/*metabolism/*ultrastructure
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    Integrative modeling defines the Nova splicing-regulatory network and its combinatorial controls (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-06-19
    Description: The control of RNA alternative splicing is critical for generating biological diversity. Despite emerging genome-wide technologies to study RNA complexity, reliable and comprehensive RNA-regulatory networks have not been defined. Here, we used Bayesian networks to probabilistically model diverse data sets and predict the target networks of specific regulators. We applied this strategy to identify approximately 700 alternative splicing events directly regulated by the neuron-specific factor Nova in the mouse brain, integrating RNA-binding data, splicing microarray data, Nova-binding motifs, and evolutionary signatures. The resulting integrative network revealed combinatorial regulation by Nova and the neuronal splicing factor Fox, interplay between phosphorylation and splicing, and potential links to neurologic disease. Thus, we have developed a general approach to understanding mammalian RNA regulation at the systems level.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3412410/" 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/PMC3412410/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhang, Chaolin -- Frias, Maria A -- Mele, Aldo -- Ruggiu, Matteo -- Eom, Taesun -- Marney, Christina B -- Wang, Huidong -- Licatalosi, Donny D -- Fak, John J -- Darnell, Robert B -- K99 GM095713/GM/NIGMS NIH HHS/ -- NS34389/NS/NINDS NIH HHS/ -- UL1 RR024143/RR/NCRR NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2010 Jul 23;329(5990):439-43. doi: 10.1126/science.1191150. Epub 2010 Jun 17.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Molecular Neuro-Oncology, Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA. czhang@rockefeller.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20558669" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Animals ; Antigens, Neoplasm/*metabolism ; Artificial Intelligence ; Bayes Theorem ; Binding Sites ; Brain/*metabolism ; Cell Line ; Computational Biology ; Evolution, Molecular ; Exons ; *Gene Regulatory Networks ; Humans ; Introns ; Mice ; Models, Genetic ; Models, Statistical ; Nerve Tissue Proteins/*metabolism ; Nervous System Diseases/genetics ; Oligonucleotide Array Sequence Analysis ; Phosphorylation ; Protein Binding ; Proteins/genetics/metabolism ; RNA/metabolism ; RNA-Binding Proteins/*metabolism
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    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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    Structure of DNMT1-DNA complex reveals a role for autoinhibition in maintenance DNA methylation (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-12-18
    Description: Maintenance of genomic methylation patterns is mediated primarily by DNA methyltransferase-1 (DNMT1). We have solved structures of mouse and human DNMT1 composed of CXXC, tandem bromo-adjacent homology (BAH1/2), and methyltransferase domains bound to DNA-containing unmethylated CpG sites. The CXXC specifically binds to unmethylated CpG dinucleotide and positions the CXXC-BAH1 linker between the DNA and the active site of DNMT1, preventing de novo methylation. In addition, a loop projecting from BAH2 interacts with the target recognition domain (TRD) of the methyltransferase, stabilizing the TRD in a retracted position and preventing it from inserting into the DNA major groove. Our studies identify an autoinhibitory mechanism, in which unmethylated CpG dinucleotides are occluded from the active site to ensure that only hemimethylated CpG dinucleotides undergo methylation.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4689315/" 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/PMC4689315/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Song, Jikui -- Rechkoblit, Olga -- Bestor, Timothy H -- Patel, Dinshaw J -- P30 CA008748/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2011 Feb 25;331(6020):1036-40. doi: 10.1126/science.1195380. Epub 2010 Dec 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21163962" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Catalytic Domain ; Crystallography, X-Ray ; Cysteine ; DNA/*chemistry/*metabolism ; DNA (Cytosine-5-)-Methyltransferase/*chemistry/*metabolism ; *DNA Methylation ; DNA-Cytosine Methylases/chemistry/metabolism ; Dinucleoside Phosphates/chemistry/metabolism ; Humans ; Mice ; Models, Molecular ; Molecular Sequence Data ; Mutant Proteins/chemistry/metabolism ; Nucleic Acid Conformation ; Protein Binding ; Protein Folding ; Protein Structure, Secondary ; Protein Structure, Tertiary ; Substrate Specificity
    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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