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基本情報
登録情報 | データベース: PDB / ID: 7tyr | |||||||||
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タイトル | Cryo-EM structure of the basal state of the Artemis:DNA-PKcs complex (see COMPND 13/14) | |||||||||
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![]() | DNA BINDING PROTEIN / Kinase / nuclease | |||||||||
機能・相同性 | ![]() positive regulation of platelet formation / single-stranded DNA endodeoxyribonuclease activity / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / DNA-dependent protein kinase complex / histone H2AXS139 kinase activity / DNA-dependent protein kinase-DNA ligase 4 complex ...positive regulation of platelet formation / single-stranded DNA endodeoxyribonuclease activity / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / DNA-dependent protein kinase complex / histone H2AXS139 kinase activity / DNA-dependent protein kinase-DNA ligase 4 complex / nonhomologous end joining complex / immunoglobulin V(D)J recombination / immature B cell differentiation / regulation of smooth muscle cell proliferation / positive regulation of double-strand break repair via nonhomologous end joining / V(D)J recombination / double-strand break repair via alternative nonhomologous end joining / regulation of epithelial cell proliferation / telomere capping / Cytosolic sensors of pathogen-associated DNA / IRF3-mediated induction of type I IFN / 5'-3' exonuclease activity / regulation of hematopoietic stem cell differentiation / 5'-3' DNA exonuclease activity / U3 snoRNA binding / maturation of 5.8S rRNA / T cell lineage commitment / response to ionizing radiation / negative regulation of cGAS/STING signaling pathway / B cell lineage commitment / negative regulation of protein phosphorylation / peptidyl-threonine phosphorylation / ectopic germ cell programmed cell death / somitogenesis / interstrand cross-link repair / mitotic G1 DNA damage checkpoint signaling / telomere maintenance / activation of innate immune response / positive regulation of erythrocyte differentiation / positive regulation of translation / B cell differentiation / response to gamma radiation / small-subunit processome / Nonhomologous End-Joining (NHEJ) / regulation of circadian rhythm / protein destabilization / protein-DNA complex / brain development / peptidyl-serine phosphorylation / protein modification process / double-strand break repair via nonhomologous end joining / cellular response to insulin stimulus / intrinsic apoptotic signaling pathway in response to DNA damage / rhythmic process / E3 ubiquitin ligases ubiquitinate target proteins / double-strand break repair / T cell differentiation in thymus / heart development / double-stranded DNA binding / endonuclease activity / transcription regulator complex / damaged DNA binding / adaptive immune response / 加水分解酵素; エステル加水分解酵素 / RNA polymerase II-specific DNA-binding transcription factor binding / chromosome, telomeric region / protein phosphorylation / non-specific serine/threonine protein kinase / protein kinase activity / positive regulation of apoptotic process / protein domain specific binding / innate immune response / protein serine kinase activity / protein serine/threonine kinase activity / DNA damage response / negative regulation of apoptotic process / chromatin / nucleolus / enzyme binding / Golgi apparatus / positive regulation of transcription by RNA polymerase II / protein-containing complex / RNA binding / nucleoplasm / ATP binding / nucleus / membrane / cytosol 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
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: 3.33 Å | |||||||||
![]() | Watanabe, G. / Lieber, M.R. / Williams, D.R. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural analysis of the basal state of the Artemis:DNA-PKcs complex. 著者: Go Watanabe / Michael R Lieber / Dewight R Williams / ![]() 要旨: Artemis nuclease and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) are key components in nonhomologous DNA end joining (NHEJ), the major repair mechanism for double-strand DNA breaks. ...Artemis nuclease and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) are key components in nonhomologous DNA end joining (NHEJ), the major repair mechanism for double-strand DNA breaks. Artemis activation by DNA-PKcs resolves hairpin DNA ends formed during V(D)J recombination. Artemis deficiency disrupts development of adaptive immunity and leads to radiosensitive T- B- severe combined immunodeficiency (RS-SCID). An activated state of Artemis in complex with DNA-PK was solved by cryo-EM recently, which showed Artemis bound to the DNA. Here, we report that the pre-activated form (basal state) of the Artemis:DNA-PKcs complex is stable on an agarose-acrylamide gel system, and suitable for cryo-EM structural analysis. Structures show that the Artemis catalytic domain is dynamically positioned externally to DNA-PKcs prior to ABCDE autophosphorylation and show how both the catalytic and regulatory domains of Artemis interact with the N-HEAT and FAT domains of DNA-PKcs. We define a mutually exclusive binding site for Artemis and XRCC4 on DNA-PKcs and show that an XRCC4 peptide disrupts the Artemis:DNA-PKcs complex. All of the findings are useful in explaining how a hypomorphic L3062R missense mutation of DNA-PKcs could lead to insufficient Artemis activation, hence RS-SCID. Our results provide various target site candidates to design disruptors for Artemis:DNA-PKcs complex formation. | |||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 979.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 774.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.5 MB | 表示 | |
XML形式データ | ![]() | 117.4 KB | 表示 | |
CIF形式データ | ![]() | 175.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 26192MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 469673.219 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() 参照: UniProt: P78527, non-specific serine/threonine protein kinase |
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#2: タンパク質 | 分子量: 80493.352 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Please use a 'blurred' map of the EMD-26192 entry to see the density of the Artemis catalytic region 由来: (組換発現) ![]() ![]() 参照: UniProt: Q96SD1, 加水分解酵素; エステル加水分解酵素 |
Has protein modification | Y |
-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 |
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試料調製
構成要素 | 名称: A complex of Artemis:DNA-PKcs / タイプ: COMPLEX / Entity ID: all / 由来: MULTIPLE SOURCES | |||||||||||||||||||||||||
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分子量 | 実験値: NO | |||||||||||||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse. | |||||||||||||||||||||||||
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 / 湿度: 73 % / 凍結前の試料温度: 295 K 詳細: Plunge-freeze was performed using a home-made manual plunger at typical indoor humidity (Los Angeles, CA) and at room temperature. |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 81000 X / 倍率(補正後): 46296 X / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 750 nm / Cs: 2.7 mm / C2レンズ絞り径: 100 µm / アライメント法: BASIC |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 平均露光時間: 3.8 sec. / 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
画像スキャン | 横: 5760 / 縦: 4092 |
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解析
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: 3.33 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 103485 / 対称性のタイプ: POINT | |||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL | |||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 5LUQ PDB chain-ID: A / Accession code: 5LUQ / Source name: PDB / タイプ: experimental model | |||||||||||||||||||||||||
精密化 | 最高解像度: 3.33 Å | |||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 3.33 Å
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