establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks / cellular response to nitrosative stress / peptidyl-serine autophosphorylation / establishment of protein-containing complex localization to telomere / meiotic telomere clustering / positive regulation of telomere maintenance via telomere lengthening / pre-B cell allelic exclusion ...establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks / cellular response to nitrosative stress / peptidyl-serine autophosphorylation / establishment of protein-containing complex localization to telomere / meiotic telomere clustering / positive regulation of telomere maintenance via telomere lengthening / pre-B cell allelic exclusion / male meiotic nuclear division / histone mRNA catabolic process / extrinsic component of synaptic vesicle membrane / regulation of telomere maintenance via telomerase / female meiotic nuclear division / DNA double-strand break processing / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / lipoprotein catabolic process / regulation of autophagosome assembly / cellular response to X-ray / V(D)J recombination / pexophagy / oocyte development / Impaired BRCA2 binding to PALB2 / reciprocal meiotic recombination / DNA repair complex / positive regulation of DNA damage response, signal transduction by p53 class mediator / Homologous DNA Pairing and Strand Exchange / Defective homologous recombination repair (HRR) due to BRCA1 loss of function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function / Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA2/RAD51/RAD51C binding function / Resolution of D-loop Structures through Synthesis-Dependent Strand Annealing (SDSA) / Resolution of D-loop Structures through Holliday Junction Intermediates / 1-phosphatidylinositol-3-kinase activity / HDR through Single Strand Annealing (SSA) / response to ionizing radiation / positive regulation of double-strand break repair / Impaired BRCA2 binding to RAD51 / mitotic spindle assembly checkpoint signaling / negative regulation of B cell proliferation / TP53 Regulates Transcription of Caspase Activators and Caspases / cellular response to stress / mitotic G2 DNA damage checkpoint signaling / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / peroxisomal matrix / Presynaptic phase of homologous DNA pairing and strand exchange / replicative senescence / signal transduction in response to DNA damage / Regulation of HSF1-mediated heat shock response / somitogenesis / Pexophagy / regulation of cellular response to heat / ovarian follicle development / cellular response to retinoic acid / negative regulation of TORC1 signaling / positive regulation of telomere maintenance via telomerase / telomere maintenance / positive regulation of cell adhesion / DNA damage checkpoint signaling / Stabilization of p53 / thymus development / regulation of signal transduction by p53 class mediator / Autodegradation of the E3 ubiquitin ligase COP1 / post-embryonic development / determination of adult lifespan / double-strand break repair via homologous recombination / cellular response to reactive oxygen species / TP53 Regulates Transcription of DNA Repair Genes / DNA damage response, signal transduction by p53 class mediator / Nonhomologous End-Joining (NHEJ) / Regulation of TP53 Activity through Methylation / HDR through Homologous Recombination (HRR) / cellular response to gamma radiation / G2/M DNA damage checkpoint / brain development / DNA Damage/Telomere Stress Induced Senescence / Meiotic recombination / double-strand break repair via nonhomologous end joining / spindle / multicellular organism growth / Regulation of TP53 Degradation / intrinsic apoptotic signaling pathway in response to DNA damage / cellular senescence / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / site of double-strand break / double-strand break repair / positive regulation of neuron apoptotic process / Processing of DNA double-strand break ends / chromosome / heart development / protein autophosphorylation / neuron apoptotic process / Regulation of TP53 Activity through Phosphorylation / regulation of apoptotic process / protein phosphorylation / non-specific serine/threonine protein kinase / regulation of cell cycle / regulation of autophagy / positive regulation of cell migration 類似検索 - 分子機能
Telomere-length maintenance and DNA damage repair / Serine/threonine-protein kinase ATM, plant / ATM, catalytic domain / Telomere-length maintenance and DNA damage repair / Telomere-length maintenance and DNA damage repair / FATC domain / PIK-related kinase, FAT / FAT domain / FATC / FATC domain ...Telomere-length maintenance and DNA damage repair / Serine/threonine-protein kinase ATM, plant / ATM, catalytic domain / Telomere-length maintenance and DNA damage repair / Telomere-length maintenance and DNA damage repair / FATC domain / PIK-related kinase, FAT / FAT domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Armadillo-type fold / Protein kinase-like domain superfamily 類似検索 - ドメイン・相同性
National Institutes of Health/National Cancer Institute (NIH/NCI)
5F32CA247320
米国
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)
CA008748
米国
引用
ジャーナル: Elife / 年: 2022 タイトル: Structure of the human ATM kinase and mechanism of Nbs1 binding. 著者: Christopher Warren / Nikola P Pavletich / 要旨: DNA double-strand breaks (DSBs) can lead to mutations, chromosomal rearrangements, genome instability, and cancer. Central to the sensing of DSBs is the ATM (Ataxia-telangiectasia mutated) kinase, ...DNA double-strand breaks (DSBs) can lead to mutations, chromosomal rearrangements, genome instability, and cancer. Central to the sensing of DSBs is the ATM (Ataxia-telangiectasia mutated) kinase, which belongs to the phosphatidylinositol 3-kinase-related protein kinase (PIKK) family. In response to DSBs, ATM is activated by the MRN (Mre11-Rad50-Nbs1) protein complex through a poorly understood process that also requires double-stranded DNA. Previous studies indicate that the FxF/Y motif of Nbs1 directly binds to ATM, and is required to retain active ATM at sites of DNA damage. Here, we report the 2.5 Å resolution cryo-EM structures of human ATM and its complex with the Nbs1 FxF/Y motif. In keeping with previous structures of ATM and its yeast homolog Tel1, the dimeric human ATM kinase adopts a symmetric, butterfly-shaped structure. The conformation of the ATM kinase domain is most similar to the inactive states of other PIKKs, suggesting that activation may involve an analogous realigning of the N and C lobes along with relieving the blockage of the substrate-binding site. We also show that the Nbs1 FxF/Y motif binds to a conserved hydrophobic cleft within the Spiral domain of ATM, suggesting an allosteric mechanism of activation. We evaluate the importance of these structural findings with mutagenesis and biochemical assays.