Reverse transcriptase / ribonucleoprotein / telomerase / telomere / DNA BINDING PROTEIN / RNA BINDING PROTEIN
機能・相同性
機能・相同性情報
: / positive regulation of DNA strand elongation / positive regulation of telomeric D-loop disassembly / G-rich single-stranded DNA binding / telomere assembly / positive regulation of hair cycle / template-free RNA nucleotidyltransferase / positive regulation of transdifferentiation / TERT-RMRP complex / DNA strand elongation ...: / positive regulation of DNA strand elongation / positive regulation of telomeric D-loop disassembly / G-rich single-stranded DNA binding / telomere assembly / positive regulation of hair cycle / template-free RNA nucleotidyltransferase / positive regulation of transdifferentiation / TERT-RMRP complex / DNA strand elongation / RNA-directed RNA polymerase complex / siRNA transcription / positive regulation of protein localization to nucleolus / 8-hydroxy-2'-deoxyguanosine DNA binding / telomeric D-loop binding / telomerase catalytic core complex / regulation of double-strand break repair via nonhomologous end joining / RNA-templated DNA biosynthetic process / DEAD/H-box RNA helicase binding / telomerase inhibitor activity / establishment of protein localization to telomere / telomeric D-loop disassembly / shelterin complex / Telomere C-strand synthesis initiation / regulation of telomere maintenance via telomerase / Regulation of MITF-M-dependent genes involved in DNA replication, damage repair and senescence / single-stranded telomeric DNA binding / Telomere C-strand (Lagging Strand) Synthesis / nuclear telomere cap complex / siRNA processing / telomere maintenance via recombination / G-rich strand telomeric DNA binding / telomere capping / Processive synthesis on the C-strand of the telomere / Polymerase switching on the C-strand of the telomere / positive regulation of vascular associated smooth muscle cell migration / Removal of the Flap Intermediate from the C-strand / telomerase RNA binding / telomerase holoenzyme complex / DNA biosynthetic process / RNA-templated transcription / telomeric DNA binding / positive regulation of stem cell proliferation / negative regulation of telomere maintenance via telomerase / positive regulation of telomere maintenance / mitochondrial nucleoid / negative regulation of cellular senescence / Telomere Extension By Telomerase / replicative senescence / positive regulation of Wnt signaling pathway / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / positive regulation of G1/S transition of mitotic cell cycle / telomere maintenance via telomerase / negative regulation of endothelial cell apoptotic process / response to cadmium ion / Packaging Of Telomere Ends / positive regulation of vascular associated smooth muscle cell proliferation / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / positive regulation of telomere maintenance via telomerase / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere maintenance / RNA-directed DNA polymerase activity / positive regulation of D-glucose import / mitochondrion organization / telomerase activity / Formation of the beta-catenin:TCF transactivating complex / transcription coactivator binding / PML body / DNA Damage/Telomere Stress Induced Senescence / regulation of protein stability / positive regulation of miRNA transcription / RNA-directed DNA polymerase / positive regulation of protein binding / positive regulation of angiogenesis / protein import into nucleus / structural constituent of chromatin / nucleosome / protein-folding chaperone binding / heart development / cellular response to hypoxia / negative regulation of neuron apoptotic process / chromosome, telomeric region / tRNA binding / nuclear speck / nuclear body / protein heterodimerization activity / RNA-directed RNA polymerase activity / nucleolus / protein homodimerization activity / DNA binding / RNA binding / nucleoplasm / metal ion binding / identical protein binding / nucleus / plasma membrane 類似検索 - 分子機能
: / Protection of telomeres protein 1 (POT1), C-terminal insertion domain / Protection of telomeres protein 1, ssDNA-binding domain / ssDNA-binding domain of telomere protection protein / Adrenocortical dysplasia protein / Shelterin complex subunit TPP1/Est3 / : / Shelterin complex subunit, TPP1/ACD / Telomerase reverse transcriptase, C-terminal extension / Protection of telomeres protein 1 ...: / Protection of telomeres protein 1 (POT1), C-terminal insertion domain / Protection of telomeres protein 1, ssDNA-binding domain / ssDNA-binding domain of telomere protection protein / Adrenocortical dysplasia protein / Shelterin complex subunit TPP1/Est3 / : / Shelterin complex subunit, TPP1/ACD / Telomerase reverse transcriptase, C-terminal extension / Protection of telomeres protein 1 / Telomeric single stranded DNA binding POT1/Cdc13 / Telomeric single stranded DNA binding POT1/CDC13 / Telomeric single stranded DNA binding POT1/CDC13 / Telomerase ribonucleoprotein complex - RNA binding domain / Telomerase reverse transcriptase / Telomerase ribonucleoprotein complex - RNA-binding domain / Telomerase ribonucleoprotein complex - RNA binding domain / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / Reverse transcriptase domain / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase (RT) catalytic domain profile. / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / Nucleic acid-binding, OB-fold / DNA/RNA polymerase superfamily 類似検索 - ドメイン・相同性
ジャーナル: Science / 年: 2022 タイトル: Structural basis of human telomerase recruitment by TPP1-POT1. 著者: Zala Sekne / George E Ghanim / Anne-Marie M van Roon / Thi Hoang Duong Nguyen / 要旨: Telomerase maintains genome stability by extending the 3' telomeric repeats at eukaryotic chromosome ends, thereby counterbalancing progressive loss caused by incomplete genome replication. In ...Telomerase maintains genome stability by extending the 3' telomeric repeats at eukaryotic chromosome ends, thereby counterbalancing progressive loss caused by incomplete genome replication. In mammals, telomerase recruitment to telomeres is mediated by TPP1, which assembles as a heterodimer with POT1. We report structures of DNA-bound telomerase in complex with TPP1 and with TPP1-POT1 at 3.2- and 3.9-angstrom resolution, respectively. Our structures define interactions between telomerase and TPP1-POT1 that are crucial for telomerase recruitment to telomeres. The presence of TPP1-POT1 stabilizes the DNA, revealing an unexpected path by which DNA exits the telomerase active site and a DNA anchor site on telomerase that is important for telomerase processivity. Our findings rationalize extensive prior genetic and biochemical findings and provide a framework for future mechanistic work on telomerase regulation.