+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7sid | |||||||||
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タイトル | Human ATM Dimer Bound to Nbs1 | |||||||||
要素 |
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キーワード | SIGNALING PROTEIN / Kinase | |||||||||
機能・相同性 | 機能・相同性情報 telomere maintenance via telomere trimming / chromosomal region / telomeric 3' overhang formation / Mre11 complex / 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 / blastocyst growth ...telomere maintenance via telomere trimming / chromosomal region / telomeric 3' overhang formation / Mre11 complex / 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 / blastocyst growth / 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 / BRCA1-C complex / protection from non-homologous end joining at telomere / positive regulation of telomere maintenance via telomere lengthening / R-loop processing / regulation of microglial cell activation / meiotic telomere clustering / t-circle formation / pre-B cell allelic exclusion / phosphorylation-dependent protein binding / male meiotic nuclear division / histone mRNA catabolic process / female meiotic nuclear division / double-strand break repair via alternative nonhomologous end joining / pexophagy / cellular response to X-ray / regulation of telomere maintenance via telomerase / DNA strand resection involved in replication fork processing / chromatin-protein adaptor activity / peptidyl-serine autophosphorylation / homologous recombination / nuclear inclusion body / DNA double-strand break processing / lipoprotein catabolic process / V(D)J recombination / positive regulation of telomere maintenance / regulation of autophagosome assembly / oocyte development / Impaired BRCA2 binding to PALB2 / isotype switching / HDR through MMEJ (alt-NHEJ) / protein localization to site of double-strand break / positive regulation of kinase activity / mitotic G2/M transition checkpoint / reciprocal meiotic recombination / regulation of DNA-templated DNA replication initiation / 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 / DNA duplex unwinding / 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 / telomere maintenance in response to DNA damage / protein K63-linked ubiquitination / peroxisomal matrix / neuromuscular process controlling balance / DNA damage response, signal transduction by p53 class mediator / replicative senescence / neuroblast proliferation / Regulation of HSF1-mediated heat shock response / somitogenesis / signal transduction in response to DNA damage / positive regulation of double-strand break repair via homologous recombination / regulation of cellular response to heat / cellular response to retinoic acid / ovarian follicle development / positive regulation of protein autophosphorylation / 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 / intrinsic apoptotic signaling pathway / post-embryonic development / positive regulation of cell adhesion / Pexophagy / protein serine/threonine kinase activator activity / thymus development / DNA damage checkpoint signaling / regulation of signal transduction by p53 class mediator / determination of adult lifespan / replication fork / regulation of autophagy / meiotic cell cycle / TP53 Regulates Transcription of DNA Repair Genes 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.53 Å | |||||||||
データ登録者 | Warren, C. / Pavletich, N.P. | |||||||||
資金援助 | 米国, 2件
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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 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7sid.cif.gz | 976.3 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7sid.ent.gz | 795.2 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7sid.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 7sid_validation.pdf.gz | 1002.1 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7sid_full_validation.pdf.gz | 1 MB | 表示 | |
XML形式データ | 7sid_validation.xml.gz | 131.3 KB | 表示 | |
CIF形式データ | 7sid_validation.cif.gz | 204.7 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/si/7sid ftp://data.pdbj.org/pub/pdb/validation_reports/si/7sid | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 351127.688 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ATM / 発現宿主: Homo sapiens (ヒト) 参照: UniProt: Q13315, non-specific serine/threonine protein kinase #2: タンパク質・ペプチド | 分子量: 3514.947 Da / 分子数: 2 / 由来タイプ: 合成 / 詳細: C-terminal 28aa of Human Nbs1 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: O60934 #3: 化合物 | #4: 化合物 | 研究の焦点であるリガンドがあるか | Y | |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: Human ATM Dimer Bound to Nbs1 / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 8 |
試料 | 濃度: 0.42 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: UltrAuFoil R1.2/1.3 |
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 51.6 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.53 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 224367 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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