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  • 1
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    Non-canonical inhibition of DNA damage-dependent ubiquitination by OTUB1 (2010)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2010-08-21
    Description: DNA double-strand breaks (DSBs) pose a potent threat to genome integrity. These lesions also contribute to the efficacy of radiotherapy and many cancer chemotherapeutics. DSBs elicit a signalling cascade that modifies the chromatin surrounding the break, first by ATM-dependent phosphorylation and then by RNF8-, RNF168- and BRCA1-dependent regulatory ubiquitination. Here we report that OTUB1, a deubiquitinating enzyme, is an inhibitor of DSB-induced chromatin ubiquitination. Surprisingly, we found that OTUB1 suppresses RNF168-dependent poly-ubiquitination independently of its catalytic activity. OTUB1 does so by binding to and inhibiting UBC13 (also known as UBE2N), the cognate E2 enzyme for RNF168. This unusual mode of regulation is unlikely to be limited to UBC13 because analysis of OTUB1-associated proteins revealed that OTUB1 binds to E2s of the UBE2D and UBE2E subfamilies. Finally, OTUB1 depletion mitigates the DSB repair defect associated with defective ATM signalling, indicating that pharmacological targeting of the OTUB1-UBC13 interaction might enhance the DNA damage response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Nakada, Shinichiro -- Tai, Ikue -- Panier, Stephanie -- Al-Hakim, Abdallah -- Iemura, Shun-Ichiro -- Juang, Yu-Chi -- O'Donnell, Lara -- Kumakubo, Ayako -- Munro, Meagan -- Sicheri, Frank -- Gingras, Anne-Claude -- Natsume, Tohru -- Suda, Toshio -- Durocher, Daniel -- MOP10703115/Canadian Institutes of Health Research/Canada -- MOP84314/Canadian Institutes of Health Research/Canada -- England -- Nature. 2010 Aug 19;466(7309):941-6. doi: 10.1038/nature09297.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center of Integrated Medical Research, School of Medicine, Keio University, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan. snakada@z3.keio.jp〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20725033" target="_blank"〉PubMed〈/a〉
    Keywords: Ataxia Telangiectasia Mutated Proteins ; Cell Cycle Proteins/antagonists & inhibitors/metabolism ; Cell Line ; Cell Line, Tumor ; Chromatin/chemistry/*metabolism ; Cysteine Endopeptidases/deficiency/genetics/*metabolism ; *DNA Breaks, Double-Stranded ; DNA Repair/physiology ; DNA-Binding Proteins/antagonists & inhibitors/metabolism ; Humans ; Protein Binding ; Protein-Serine-Threonine Kinases/antagonists & inhibitors/metabolism ; Tumor Suppressor Proteins/antagonists & inhibitors/metabolism ; Ubiquitin/genetics/metabolism ; Ubiquitin-Conjugating Enzymes/antagonists & inhibitors/metabolism ; Ubiquitin-Protein Ligases/antagonists & inhibitors/genetics/metabolism ; Ubiquitination/*physiology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    The genetic landscape of a cell (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-01-23
    Description: A genome-scale genetic interaction map was constructed by examining 5.4 million gene-gene pairs for synthetic genetic interactions, generating quantitative genetic interaction profiles for approximately 75% of all genes in the budding yeast, Saccharomyces cerevisiae. A network based on genetic interaction profiles reveals a functional map of the cell in which genes of similar biological processes cluster together in coherent subsets, and highly correlated profiles delineate specific pathways to define gene function. The global network identifies functional cross-connections between all bioprocesses, mapping a cellular wiring diagram of pleiotropy. Genetic interaction degree correlated with a number of different gene attributes, which may be informative about genetic network hubs in other organisms. We also demonstrate that extensive and unbiased mapping of the genetic landscape provides a key for interpretation of chemical-genetic interactions and drug target identification.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Costanzo, Michael -- Baryshnikova, Anastasia -- Bellay, Jeremy -- Kim, Yungil -- Spear, Eric D -- Sevier, Carolyn S -- Ding, Huiming -- Koh, Judice L Y -- Toufighi, Kiana -- Mostafavi, Sara -- Prinz, Jeany -- St Onge, Robert P -- VanderSluis, Benjamin -- Makhnevych, Taras -- Vizeacoumar, Franco J -- Alizadeh, Solmaz -- Bahr, Sondra -- Brost, Renee L -- Chen, Yiqun -- Cokol, Murat -- Deshpande, Raamesh -- Li, Zhijian -- Lin, Zhen-Yuan -- Liang, Wendy -- Marback, Michaela -- Paw, Jadine -- San Luis, Bryan-Joseph -- Shuteriqi, Ermira -- Tong, Amy Hin Yan -- van Dyk, Nydia -- Wallace, Iain M -- Whitney, Joseph A -- Weirauch, Matthew T -- Zhong, Guoqing -- Zhu, Hongwei -- Houry, Walid A -- Brudno, Michael -- Ragibizadeh, Sasan -- Papp, Balazs -- Pal, Csaba -- Roth, Frederick P -- Giaever, Guri -- Nislow, Corey -- Troyanskaya, Olga G -- Bussey, Howard -- Bader, Gary D -- Gingras, Anne-Claude -- Morris, Quaid D -- Kim, Philip M -- Kaiser, Chris A -- Myers, Chad L -- Andrews, Brenda J -- Boone, Charles -- 084314/Wellcome Trust/United Kingdom -- GSP-41567/Canadian Institutes of Health Research/Canada -- R01 HG003224/HG/NHGRI NIH HHS/ -- New York, N.Y. -- Science. 2010 Jan 22;327(5964):425-31. doi: 10.1126/science.1180823.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, Terrence Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20093466" target="_blank"〉PubMed〈/a〉
    Keywords: Computational Biology ; Gene Duplication ; Gene Expression Regulation, Fungal ; *Gene Regulatory Networks ; Genes, Fungal ; Genetic Fitness ; *Genome, Fungal ; Metabolic Networks and Pathways ; Mutation ; Protein Interaction Mapping ; Saccharomyces cerevisiae/*genetics/*metabolism/physiology ; Saccharomyces cerevisiae Proteins/genetics/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    Global gene deletion analysis exploring yeast filamentous growth (2012)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2012-09-18
    Description: The dimorphic switch from a single-cell budding yeast to a filamentous form enables Saccharomyces cerevisiae to forage for nutrients and the opportunistic pathogen Candida albicans to invade human tissues and evade the immune system. We constructed a genome-wide set of targeted deletion alleles and introduced them into a filamentous S. cerevisiae strain, Sigma1278b. We identified genes involved in morphologically distinct forms of filamentation: haploid invasive growth, biofilm formation, and diploid pseudohyphal growth. Unique genes appear to underlie each program, but we also found core genes with general roles in filamentous growth, including MFG1 (YDL233w), whose product binds two morphogenetic transcription factors, Flo8 and Mss11, and functions as a critical transcriptional regulator of filamentous growth in both S. cerevisiae and C. albicans.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ryan, Owen -- Shapiro, Rebecca S -- Kurat, Christoph F -- Mayhew, David -- Baryshnikova, Anastasia -- Chin, Brian -- Lin, Zhen-Yuan -- Cox, Michael J -- Vizeacoumar, Frederick -- Cheung, Doris -- Bahr, Sondra -- Tsui, Kyle -- Tebbji, Faiza -- Sellam, Adnane -- Istel, Fabian -- Schwarzmuller, Tobias -- Reynolds, Todd B -- Kuchler, Karl -- Gifford, David K -- Whiteway, Malcolm -- Giaever, Guri -- Nislow, Corey -- Costanzo, Michael -- Gingras, Anne-Claude -- Mitra, Robi David -- Andrews, Brenda -- Fink, Gerald R -- Cowen, Leah E -- Boone, Charles -- 42516-4/Canadian Institutes of Health Research/Canada -- GM035010/GM/NIGMS NIH HHS/ -- GM40266/GM/NIGMS NIH HHS/ -- MOP-97939/Canadian Institutes of Health Research/Canada -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2012 Sep 14;337(6100):1353-6. doi: 10.1126/science.1224339.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Banting and Best Department of Medical Research, University of Toronto, Toronto, ON M5S 3E1, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22984072" target="_blank"〉PubMed〈/a〉
    Keywords: Alleles ; Biofilms/growth & development ; Candida albicans/cytology/*genetics/*growth & development ; DNA Mutational Analysis ; Gene Deletion ; *Gene Expression Regulation, Fungal ; Hyphae/genetics/growth & development ; Nuclear Proteins/genetics ; Saccharomyces cerevisiae/cytology/*genetics/*growth & development ; Saccharomyces cerevisiae Proteins/genetics ; Trans-Activators/genetics ; Transcription Factors/genetics ; 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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    Temporal regulation of EGF signalling networks by the scaffold protein Shc1 (2013)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2013-07-13
    Description: Cell-surface receptors frequently use scaffold proteins to recruit cytoplasmic targets, but the rationale for this is uncertain. Activated receptor tyrosine kinases, for example, engage scaffolds such as Shc1 that contain phosphotyrosine (pTyr)-binding (PTB) domains. Using quantitative mass spectrometry, here we show that mammalian Shc1 responds to epidermal growth factor (EGF) stimulation through multiple waves of distinct phosphorylation events and protein interactions. After stimulation, Shc1 rapidly binds a group of proteins that activate pro-mitogenic or survival pathways dependent on recruitment of the Grb2 adaptor to Shc1 pTyr sites. Akt-mediated feedback phosphorylation of Shc1 Ser 29 then recruits the Ptpn12 tyrosine phosphatase. This is followed by a sub-network of proteins involved in cytoskeletal reorganization, trafficking and signal termination that binds Shc1 with delayed kinetics, largely through the SgK269 pseudokinase/adaptor protein. Ptpn12 acts as a switch to convert Shc1 from pTyr/Grb2-based signalling to SgK269-mediated pathways that regulate cell invasion and morphogenesis. The Shc1 scaffold therefore directs the temporal flow of signalling information after EGF stimulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zheng, Yong -- Zhang, Cunjie -- Croucher, David R -- Soliman, Mohamed A -- St-Denis, Nicole -- Pasculescu, Adrian -- Taylor, Lorne -- Tate, Stephen A -- Hardy, W Rod -- Colwill, Karen -- Dai, Anna Yue -- Bagshaw, Rick -- Dennis, James W -- Gingras, Anne-Claude -- Daly, Roger J -- Pawson, Tony -- MOP-13466-6849/Canadian Institutes of Health Research/Canada -- England -- Nature. 2013 Jul 11;499(7457):166-71. doi: 10.1038/nature12308.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto M5G 1X5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23846654" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Breast/cytology ; Cell Line ; Epidermal Growth Factor/*metabolism ; Epithelial Cells/cytology ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Feedback, Physiological ; GRB2 Adaptor Protein/deficiency/genetics/metabolism ; Humans ; Mice ; Multiprotein Complexes/chemistry/metabolism ; Phosphorylation ; Protein Binding ; Protein-Tyrosine Kinases ; Proto-Oncogene Proteins c-akt/metabolism ; Rats ; Receptor, Epidermal Growth Factor/agonists/metabolism ; Shc Signaling Adaptor Proteins/deficiency/genetics/*metabolism ; *Signal Transduction ; Time Factors
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 5
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    The linear ubiquitin-specific deubiquitinase gumby regulates angiogenesis (2013)
    Nature Publishing Group (NPG)
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    Publication Date: 2013-05-28
    Description: A complex interaction of signalling events, including the Wnt pathway, regulates sprouting of blood vessels from pre-existing vasculature during angiogenesis. Here we show that two distinct mutations in the (uro)chordate-specific gumby (also called Fam105b) gene cause an embryonic angiogenic phenotype in gumby mice. Gumby interacts with disheveled 2 (DVL2), is expressed in canonical Wnt-responsive endothelial cells and encodes an ovarian tumour domain class of deubiquitinase that specifically cleaves linear ubiquitin linkages. A crystal structure of gumby in complex with linear diubiquitin reveals how the identified mutations adversely affect substrate binding and catalytic function in line with the severity of their angiogenic phenotypes. Gumby interacts with HOIP (also called RNF31), a key component of the linear ubiquitin assembly complex, and decreases linear ubiquitination and activation of NF-kappaB-dependent transcription. This work provides support for the biological importance of linear (de)ubiquitination in angiogenesis, craniofacial and neural development and in modulating Wnt signalling.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rivkin, Elena -- Almeida, Stephanie M -- Ceccarelli, Derek F -- Juang, Yu-Chi -- MacLean, Teresa A -- Srikumar, Tharan -- Huang, Hao -- Dunham, Wade H -- Fukumura, Ryutaro -- Xie, Gang -- Gondo, Yoichi -- Raught, Brian -- Gingras, Anne-Claude -- Sicheri, Frank -- Cordes, Sabine P -- IHO 94384/Canadian Institutes of Health Research/Canada -- MOP 111199/Canadian Institutes of Health Research/Canada -- MOP 97966/Canadian Institutes of Health Research/Canada -- MOP119289/Canadian Institutes of Health Research/Canada -- England -- Nature. 2013 Jun 20;498(7454):318-24. doi: 10.1038/nature12296. Epub 2013 May 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Samuel Lunenfeld Research Institute, Mt Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23708998" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing/metabolism ; Alleles ; Amino Acid Sequence ; Animals ; Base Sequence ; Crystallography, X-Ray ; Embryo, Mammalian/blood supply/embryology/metabolism ; Endopeptidases/*chemistry/deficiency/genetics/*metabolism ; Female ; Gene Expression Profiling ; HEK293 Cells ; Humans ; Mice ; Models, Molecular ; Molecular Sequence Data ; *Neovascularization, Physiologic/genetics ; Phenotype ; Phosphoproteins/metabolism ; Protein Conformation ; Ubiquitin/*chemistry/*metabolism ; Ubiquitin-Protein Ligases/metabolism ; *Ubiquitination ; Wnt Signaling Pathway
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 6
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    Wilms tumor suppressor WTX negatively regulates WNT/beta-catenin signaling (2007)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2007-05-19
    Description: Aberrant WNT signal transduction is involved in many diseases. In colorectal cancer and melanoma, mutational disruption of proteins involved in the degradation of beta-catenin, the key effector of the WNT signaling pathway, results in stabilization of beta-catenin and, in turn, activation of transcription. We have used tandem-affinity protein purification and mass spectrometry to define the protein interaction network of the beta-catenin destruction complex. This assay revealed that WTX, a protein encoded by a gene mutated in Wilms tumors, forms a complex with beta-catenin, AXIN1, beta-TrCP2 (beta-transducin repeat-containing protein 2), and APC (adenomatous polyposis coli). Functional analyses in cultured cells, Xenopus, and zebrafish demonstrate that WTX promotes beta-catenin ubiquitination and degradation, which antagonize WNT/beta-catenin signaling. These data provide a possible mechanistic explanation for the tumor suppressor activity of WTX.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Major, Michael B -- Camp, Nathan D -- Berndt, Jason D -- Yi, Xianhua -- Goldenberg, Seth J -- Hubbert, Charlotte -- Biechele, Travis L -- Gingras, Anne-Claude -- Zheng, Ning -- Maccoss, Michael J -- Angers, Stephane -- Moon, Randall T -- New York, N.Y. -- Science. 2007 May 18;316(5827):1043-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute, University of Washington School of Medicine, Box 357370, Seattle, WA 98195, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17510365" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptor Proteins, Signal Transducing ; Adenomatous Polyposis Coli Protein/metabolism ; Animals ; Axin Protein ; Cell Line ; Cell Line, Tumor ; Cell Nucleus/metabolism ; Cytoplasm/metabolism ; Genes, Wilms Tumor ; Humans ; Kidney Neoplasms/genetics ; Protein Binding ; Protein Interaction Mapping ; Proteomics ; RNA Interference ; Recombinant Fusion Proteins/metabolism ; Repressor Proteins/metabolism ; *Signal Transduction ; Transduction, Genetic ; Tumor Suppressor Proteins/chemistry/genetics/*metabolism ; Ubiquitin/metabolism ; Ubiquitin-Protein Ligases/metabolism ; Wilms Tumor/genetics ; Wnt Proteins/*metabolism ; Xenopus Proteins ; Zebrafish ; beta Catenin/*metabolism ; beta-Transducin Repeat-Containing Proteins/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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    A global protein kinase and phosphatase interaction network in yeast (2010)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2010-05-22
    Description: The interactions of protein kinases and phosphatases with their regulatory subunits and substrates underpin cellular regulation. We identified a kinase and phosphatase interaction (KPI) network of 1844 interactions in budding yeast by mass spectrometric analysis of protein complexes. The KPI network contained many dense local regions of interactions that suggested new functions. Notably, the cell cycle phosphatase Cdc14 associated with multiple kinases that revealed roles for Cdc14 in mitogen-activated protein kinase signaling, the DNA damage response, and metabolism, whereas interactions of the target of rapamycin complex 1 (TORC1) uncovered new effector kinases in nitrogen and carbon metabolism. An extensive backbone of kinase-kinase interactions cross-connects the proteome and may serve to coordinate diverse cellular responses.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3983991/" 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/PMC3983991/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Breitkreutz, Ashton -- Choi, Hyungwon -- Sharom, Jeffrey R -- Boucher, Lorrie -- Neduva, Victor -- Larsen, Brett -- Lin, Zhen-Yuan -- Breitkreutz, Bobby-Joe -- Stark, Chris -- Liu, Guomin -- Ahn, Jessica -- Dewar-Darch, Danielle -- Reguly, Teresa -- Tang, Xiaojing -- Almeida, Ricardo -- Qin, Zhaohui Steve -- Pawson, Tony -- Gingras, Anne-Claude -- Nesvizhskii, Alexey I -- Tyers, Mike -- CA-126239/CA/NCI NIH HHS/ -- MOP-12246/Canadian Institutes of Health Research/Canada -- MOP-57793/Canadian Institutes of Health Research/Canada -- MOP-84314/Canadian Institutes of Health Research/Canada -- R01 CA126239/CA/NCI NIH HHS/ -- R01 GM094231/GM/NIGMS NIH HHS/ -- R01 OD010929/OD/NIH HHS/ -- R01 RR024031/RR/NCRR NIH HHS/ -- R01 RR024031-05/RR/NCRR NIH HHS/ -- R01RR024031/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 May 21;328(5981):1043-6. doi: 10.1126/science.1176495.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Systems Biology, Samuel Lunenfeld Research Institute, 600 University Avenue, Toronto, Ontario, M5G 1X5, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20489023" target="_blank"〉PubMed〈/a〉
    Keywords: Binding Sites ; Carbon/metabolism ; Cell Cycle Proteins/metabolism ; DNA Damage ; MAP Kinase Signaling System ; Mass Spectrometry ; Metabolic Networks and Pathways ; Models, Biological ; Nitrogen/metabolism ; Phosphoprotein Phosphatases/*metabolism ; Phosphorylation ; Protein Interaction Mapping ; Protein Kinases/*metabolism ; Protein Subunits/metabolism ; Protein Tyrosine Phosphatases/metabolism ; Protein-Serine-Threonine Kinases/metabolism ; Proteome ; Saccharomyces cerevisiae/*enzymology/metabolism ; Saccharomyces cerevisiae Proteins/*metabolism ; Signal Transduction
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
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    An alternative splicing event amplifies evolutionary differences between vertebrates (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-08-22
    Description: Alternative splicing (AS) generates extensive transcriptomic and proteomic complexity. However, the functions of species- and lineage-specific splice variants are largely unknown. Here we show that mammalian-specific skipping of polypyrimidine tract-binding protein 1 (PTBP1) exon 9 alters the splicing regulatory activities of PTBP1 and affects the inclusion levels of numerous exons. During neurogenesis, skipping of exon 9 reduces PTBP1 repressive activity so as to facilitate activation of a brain-specific AS program. Engineered skipping of the orthologous exon in chicken cells induces a large number of mammalian-like AS changes in PTBP1 target exons. These results thus reveal that a single exon-skipping event in an RNA binding regulator directs numerous AS changes between species. Our results further suggest that these changes contributed to evolutionary differences in the formation of vertebrate nervous systems.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gueroussov, Serge -- Gonatopoulos-Pournatzis, Thomas -- Irimia, Manuel -- Raj, Bushra -- Lin, Zhen-Yuan -- Gingras, Anne-Claude -- Blencowe, Benjamin J -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2015 Aug 21;349(6250):868-73. doi: 10.1126/science.aaa8381.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Donnelly Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada. Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada. ; Donnelly Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada. ; Donnelly Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada. EMBL/CRG Systems Biology Research Unit, Centre for Genomic Regulation (CRG), Dr. Aiguader 88, 08003 Barcelona, Spain. ; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada. ; Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada. Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, Ontario M5G 1X5, Canada. ; Donnelly Centre, University of Toronto, Toronto, Ontario M5S 3E1, Canada. Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5S 1A8, Canada. b.blencowe@utoronto.ca.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26293963" target="_blank"〉PubMed〈/a〉
    Keywords: *Alternative Splicing ; Animals ; *Biological Evolution ; Brain/*embryology ; Chickens ; Embryonic Stem Cells/metabolism ; Exons/genetics ; HEK293 Cells ; Heterogeneous-Nuclear Ribonucleoproteins/*genetics ; Humans ; Mice ; Neural Stem Cells/metabolism ; Neurogenesis/*genetics ; Polypyrimidine Tract-Binding Protein/*genetics
    Print ISSN: 0036-8075
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  • 9
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    (R)-PFI-2 is a potent and selective inhibitor of SETD7 methyltransferase activity in cells (2014)
    National Academy of Sciences
    Details
    Publication Date: 2014-08-18
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
    Published by National Academy of Sciences
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  • 10
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    4E-BP1 phosphorylation is mediated by the FRAP-p70s6k pathway and is independent of mitogen-activated protein kinase. (1996)
    National Academy of Sciences
    Details
    Publication Date: 1996-04-30
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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