Search Results - "Tesmer, Valerie M"
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Distinct functions of POT1 proteins contribute to the regulation of telomerase recruitment to telomeres
Published in Nature communications (17-09-2021)“…Human shelterin components POT1 and TPP1 form a stable heterodimer that protects telomere ends from ATR-dependent DNA damage responses and regulates…”
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The N Terminus of the OB Domain of Telomere Protein TPP1 Is Critical for Telomerase Action
Published in Cell reports (Cambridge) (30-01-2018)“…Telomerase recruitment to telomeres and enzymatic processivity are mediated by TPP1, an essential component of telomere integrity and telomerase function. A…”
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Two Separation-of-Function Isoforms of Human TPP1 Dictate Telomerase Regulation in Somatic and Germ Cells
Published in Cell reports (Cambridge) (18-06-2019)“…Telomerase replicates chromosome ends in germ and somatic stem cells to facilitate their continued proliferation. Telomerase action depends on the telomeric…”
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Dissecting the telomere–inner nuclear membrane interface formed in meiosis
Published in Nature structural & molecular biology (01-12-2017)“…Structural and functional analyses of human TRF1 in complex with meiosis-specific protein TERB1 reveal the basis for telomere tethering to the inner nuclear…”
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Molecular Mechanism for Inhibition of G Protein-Coupled Receptor Kinase 2 by a Selective RNA Aptamer
Published in Structure (London) (08-08-2012)“…Cardiovascular homeostasis is maintained in part by the rapid desensitization of activated heptahelical receptors that have been phosphorylated by…”
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Structural and Functional Analysis of the Regulator of G Protein Signaling 2-Gαq Complex
Published in Structure (London) (05-03-2013)“…The heterotrimeric G protein Gαq is a key regulator of blood pressure, and excess Gαq signaling leads to hypertension. A specific inhibitor of Gαq is the…”
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TPP1 mutagenesis screens unravel shelterin interfaces and functions in hematopoiesis
Published in JCI insight (10-05-2021)“…Telomerase catalyzes chromosome end replication in stem cells and other long-lived cells. Mutations in telomerase or telomere-related genes result in diseases…”
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Human POT1 protects the telomeric ds-ss DNA junction by capping the 5′ end of the chromosome
Published in Science (American Association for the Advancement of Science) (18-08-2023)“…Protection of telomeres 1 (POT1) is the 3′ single-stranded overhang-binding telomeric protein that prevents an ataxia telangiectasia and Rad3–related (ATR) DNA…”
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The Structure of G Protein-coupled Receptor Kinase (GRK)-6 Defines a Second Lineage of GRKs
Published in The Journal of biological chemistry (16-06-2006)“…We describe the 2.6-Å crystal structure of human G protein-coupled receptor kinase (GRK)-6, a key regulator of dopaminergic signaling and lymphocyte…”
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Structural and functional consequences of a disease mutation in the telomere protein TPP1
Published in Proceedings of the National Academy of Sciences - PNAS (15-11-2016)“…Telomerase replicates chromosome ends to facilitate continued cell division. Mutations that compromise telomerase function result in stem cell failure…”
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Combining conservation and species-specific differences to determine how human telomerase binds telomeres
Published in Proceedings of the National Academy of Sciences - PNAS (26-12-2019)“…Telomerase catalyzes telomeric DNA synthesis at chromosome ends to allow for continued cell division. The telomeric protein TPP1 is essential for enhancing the…”
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Caenorhabditis elegans telomere-binding proteins TEBP-1 and TEBP-2 adapt the Myb module to dimerize and bind telomeric DNA
Published in Proceedings of the National Academy of Sciences - PNAS (16-04-2024)“…Protecting chromosome ends from misrecognition as double-stranded (ds) DNA breaks is fundamental to eukaryotic viability. The protein complex shelterin…”
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Interaction hub critical for telomerase recruitment and primer-template handling for catalysis
Published in Life science alliance (01-06-2023)“…Telomerase processively adds telomeric DNA repeats to chromosome ends using catalytic protein subunit TERT and a template on its RNA subunit TR. Mammalian…”
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Heterotrimeric G protein β1γ2 subunits change orientation upon complex formation with G protein-coupled receptor kinase 2 (GRK2) on a model membrane
Published in Proceedings of the National Academy of Sciences - PNAS (13-09-2011)“…Few experimental techniques can assess the orientation of peripheral membrane proteins in their native environment. Sum Frequency Generation (SFG) vibrational…”
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An autoinhibitory helix in the C-terminal region of phospholipase C-β mediates Gα q activation
Published in Nature structural & molecular biology (07-08-2011)“…By examining the structure of phospholipase C-β, an autoinhibitory helix that interacts with the catalytic core of this enzyme is now identified. Disrupting…”
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Structure of Human G Protein-Coupled Receptor Kinase 2 in Complex with the Kinase Inhibitor Balanol
Published in Journal of medicinal chemistry (25-02-2010)“…G protein-coupled receptor kinase 2 (GRK2) is a pharmaceutical target for the treatment of cardiovascular diseases such as congestive heart failure, myocardial…”
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Normal human chromosomes have long G-rich telomeric overhangs at one end
Published in Genes & development (01-11-1997)“…Telomeres protect the ends of linear chromosomes from degradation and abnormal recombination events, and in vertebrates may be important in cellular senescence…”
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Telomere Shortening Is Proportional to the Size of the G-rich Telomeric 3′-Overhang
Published in The Journal of biological chemistry (30-06-2000)“…Most normal diploid human cells do not express telomerase activity and are unable to maintain telomere length with ongoing cell divisions. We show that the…”
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Assembly of High Order Gαq-Effector Complexes with RGS Proteins
Published in The Journal of biological chemistry (12-12-2008)“…Transmembrane signaling through Gαq-coupled receptors is linked to physiological processes such as cardiovascular development and smooth muscle function…”
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Heterotrimeric G protein β 1 γ 2 subunits change orientation upon complex formation with G protein-coupled receptor kinase 2 (GRK2) on a model membrane
Published in Proceedings of the National Academy of Sciences - PNAS (13-09-2011)“…Few experimental techniques can assess the orientation of peripheral membrane proteins in their native environment. Sum Frequency Generation (SFG) vibrational…”
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