DNA-dependent protein kinase activity / positive regulation of DNA catabolic process / histone H2AXS139 kinase activity / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / positive regulation of DNA damage response, signal transduction by p53 class mediator / establishment of protein-containing complex localization to telomere / cellular response to nitrosative stress / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks ...DNA-dependent protein kinase activity / positive regulation of DNA catabolic process / histone H2AXS139 kinase activity / establishment of RNA localization to telomere / positive regulation of telomerase catalytic core complex assembly / positive regulation of DNA damage response, signal transduction by p53 class mediator / establishment of protein-containing complex localization to telomere / cellular response to nitrosative stress / negative regulation of telomere capping / Sensing of DNA Double Strand Breaks / positive regulation of telomere maintenance via telomere lengthening / regulation of microglial cell activation / meiotic telomere clustering / pre-B cell allelic exclusion / male meiotic nuclear division / histone mRNA catabolic process / female meiotic nuclear division / pexophagy / cellular response to X-ray / regulation of telomere maintenance via telomerase / peptidyl-serine autophosphorylation / DNA double-strand break processing / lipoprotein catabolic process / V(D)J recombination / regulation of autophagosome assembly / oocyte development / Impaired BRCA2 binding to PALB2 / reciprocal meiotic recombination / DNA repair complex / 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 / HDR through Single Strand Annealing (SSA) / Impaired BRCA2 binding to RAD51 / 1-phosphatidylinositol-3-kinase activity / response to ionizing radiation / TP53 Regulates Transcription of Caspase Activators and Caspases / mitotic spindle assembly checkpoint signaling / negative regulation of B cell proliferation / mitotic G2 DNA damage checkpoint signaling / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / Presynaptic phase of homologous DNA pairing and strand exchange / peroxisomal matrix / replicative senescence / Regulation of HSF1-mediated heat shock response / somitogenesis / signal transduction in response to DNA damage / regulation of cellular response to heat / cellular response to retinoic acid / ovarian follicle development / negative regulation of TORC1 signaling / positive regulation of telomere maintenance via telomerase / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / telomere maintenance / post-embryonic development / positive regulation of cell adhesion / Pexophagy / thymus development / DNA damage checkpoint signaling / regulation of signal transduction by p53 class mediator / determination of adult lifespan / regulation of autophagy / TP53 Regulates Transcription of DNA Repair Genes / Nonhomologous End-Joining (NHEJ) / Stabilization of p53 / Autodegradation of the E3 ubiquitin ligase COP1 / double-strand break repair via homologous recombination / brain development / G2/M DNA damage checkpoint / HDR through Homologous Recombination (HRR) / multicellular organism growth / DNA Damage/Telomere Stress Induced Senescence / Regulation of TP53 Activity through Methylation / cellular response to gamma radiation / Meiotic recombination / double-strand break repair via nonhomologous end joining / spindle / intrinsic apoptotic signaling pathway in response to DNA damage / cellular response to reactive oxygen species / positive regulation of neuron apoptotic process / cellular senescence / Regulation of TP53 Degradation / double-strand break repair / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / heart development / site of double-strand break / Processing of DNA double-strand break ends / peptidyl-serine phosphorylation / cytoplasmic vesicle / regulation of apoptotic process / neuron apoptotic process / Regulation of TP53 Activity through Phosphorylation / protein autophosphorylation / non-specific serine/threonine protein kinase / regulation of cell cycle / response to hypoxia / 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 / PIK-related kinase, FAT / FATC domain / FATC / FAT domain / FAT domain profile. ...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 / PIK-related kinase, FAT / FATC domain / FATC / FAT domain / FAT domain profile. / FATC domain profile. / FATC domain / PIK-related kinase / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / 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.
履歴
登録
2021年10月13日
登録サイト: RCSB / 処理サイト: RCSB
改定 1.0
2022年2月2日
Provider: repository / タイプ: Initial release
改定 1.1
2024年6月5日
Group: Data collection / カテゴリ: chem_comp_atom / chem_comp_bond