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基本情報
登録情報 | データベース: PDB / ID: 7v3v | ||||||
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タイトル | Cryo-EM structure of MCM double hexamer bound with DDK in State I | ||||||
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![]() | CELL CYCLE / Kinase / Replicative helicase / Complex / Replication | ||||||
機能・相同性 | ![]() positive regulation of spindle attachment to meiosis I kinetochore / positive regulation of meiotic DNA double-strand break formation involved in reciprocal meiotic recombination / positive regulation of DNA replication initiation / positive regulation of kinetochore assembly / positive regulation of meiotic DNA double-strand break formation / negative regulation of exit from mitosis / Dbf4-dependent protein kinase complex / positive regulation of protein localization to kinetochore / positive regulation of nuclear cell cycle DNA replication / positive regulation of meiosis I ...positive regulation of spindle attachment to meiosis I kinetochore / positive regulation of meiotic DNA double-strand break formation involved in reciprocal meiotic recombination / positive regulation of DNA replication initiation / positive regulation of kinetochore assembly / positive regulation of meiotic DNA double-strand break formation / negative regulation of exit from mitosis / Dbf4-dependent protein kinase complex / positive regulation of protein localization to kinetochore / positive regulation of nuclear cell cycle DNA replication / positive regulation of meiosis I / regulation of cell cycle phase transition / MCM core complex / Assembly of the pre-replicative complex / Switching of origins to a post-replicative state / MCM complex binding / mitotic DNA replication preinitiation complex assembly / nuclear DNA replication / premeiotic DNA replication / pre-replicative complex assembly involved in nuclear cell cycle DNA replication / mitotic DNA replication / Activation of the pre-replicative complex / CMG complex / nuclear pre-replicative complex / Activation of ATR in response to replication stress / protein-containing complex localization / DNA replication preinitiation complex / MCM complex / replication fork protection complex / mitotic DNA replication checkpoint signaling / double-strand break repair via break-induced replication / single-stranded DNA helicase activity / mitotic DNA replication initiation / regulation of DNA-templated DNA replication initiation / silent mating-type cassette heterochromatin formation / DNA strand elongation involved in DNA replication / nuclear replication fork / DNA replication origin binding / chromosome, centromeric region / DNA replication initiation / subtelomeric heterochromatin formation / protein serine/threonine kinase activator activity / helicase activity / chromosome segregation / transcription elongation by RNA polymerase II / heterochromatin formation / single-stranded DNA binding / DNA helicase / forked DNA-dependent helicase activity / single-stranded 3'-5' DNA helicase activity / four-way junction helicase activity / double-stranded DNA helicase activity / eukaryotic translation initiation factor 2alpha kinase activity / chromosome, telomeric region / 3-phosphoinositide-dependent protein kinase activity / DNA-dependent protein kinase activity / ribosomal protein S6 kinase activity / histone H3S10 kinase activity / histone H2AXS139 kinase activity / histone H3S28 kinase activity / histone H4S1 kinase activity / histone H2BS14 kinase activity / histone H3T3 kinase activity / histone H2AS121 kinase activity / Rho-dependent protein serine/threonine kinase activity / histone H2BS36 kinase activity / histone H3S57 kinase activity / histone H2AT120 kinase activity / AMP-activated protein kinase activity / histone H2AS1 kinase activity / histone H3T6 kinase activity / histone H3T11 kinase activity / histone H3T45 kinase activity / DNA replication / non-specific serine/threonine protein kinase / cell division / protein serine kinase activity / protein serine/threonine kinase activity / centrosome / DNA damage response / chromatin binding / chromatin / signal transduction / ATP hydrolysis activity / zinc ion binding / nucleoplasm / ATP binding / metal ion binding / identical protein binding / nucleus / cytoplasm 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: 2.9 Å | ||||||
![]() | Cheng, J. / Li, N. / Huo, Y. / Dang, S. / Tye, B. / Gao, N. / Zhai, Y. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural Insight into the MCM double hexamer activation by Dbf4-Cdc7 kinase. 著者: Jiaxuan Cheng / Ningning Li / Yunjing Huo / Shangyu Dang / Bik-Kwoon Tye / Ning Gao / Yuanliang Zhai / ![]() ![]() 要旨: The Dbf4-dependent kinase Cdc7 (DDK) regulates DNA replication initiation by phosphorylation of the MCM double hexamer (MCM-DH) to promote helicase activation. Here, we determine a series of cryo ...The Dbf4-dependent kinase Cdc7 (DDK) regulates DNA replication initiation by phosphorylation of the MCM double hexamer (MCM-DH) to promote helicase activation. Here, we determine a series of cryo electron microscopy (cryo-EM) structures of yeast DDK bound to the MCM-DH. These structures, occupied by one or two DDKs, differ primarily in the conformations of the kinase core. The interactions of DDK with the MCM-DH are mediated exclusively by subunit Dbf4 straddling across the hexamer interface on the three N-terminal domains (NTDs) of subunits Mcm2, Mcm6, and Mcm4. This arrangement brings Cdc7 close to its only essential substrate, the N-terminal serine/threonine-rich domain (NSD) of Mcm4. Dbf4 further displaces the NSD from its binding site on Mcm4-NTD, facilitating an immediate targeting of this motif by Cdc7. Moreover, the active center of Cdc7 is occupied by a unique Dbf4 inhibitory loop, which is disengaged when the kinase core assumes wobbling conformations. This study elucidates the versatility of Dbf4 in regulating the ordered multisite phosphorylation of the MCM-DH by Cdc7 kinase during helicase activation. | ||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 31685MC ![]() 7v3uC ![]() 7w8gC 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
-DNA replication licensing factor ... , 5種, 10分子 2B3C4D6F7G
#1: タンパク質 | 分子量: 98911.539 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P29469, DNA helicase #2: タンパク質 | 分子量: 107653.508 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P24279, DNA helicase #3: タンパク質 | 分子量: 105138.375 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P30665, DNA helicase #5: タンパク質 | 分子量: 113110.211 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P53091, DNA helicase #6: タンパク質 | 分子量: 95049.875 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P38132, DNA helicase |
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-タンパク質 , 3種, 4分子 5EHI
#4: タンパク質 | 分子量: 86505.734 Da / 分子数: 2 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P29496, DNA helicase #7: タンパク質 | | 分子量: 58391.129 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c 参照: UniProt: P06243, non-specific serine/threonine protein kinase #8: タンパク質 | | 分子量: 80824.156 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() ![]() 株: S288c / 参照: UniProt: P32325 |
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-非ポリマー , 4種, 36分子 






#9: 化合物 | ChemComp-AGS / #10: 化合物 | ChemComp-MG / #11: 化合物 | ChemComp-ZN / #12: 化合物 | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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: DH-DDK (State I) / タイプ: COMPLEX / Entity ID: #1-#8 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.6 |
試料 | 包埋: YES / シャドウイング: NO / 染色: NO / 凍結: YES |
EM embedding | Material: Ice |
急速凍結 | 凍結剤: ETHANE |
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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 / 最大 デフォーカス(公称値): 3500 nm / 最小 デフォーカス(公称値): 1000 nm |
撮影 | 電子線照射量: 46 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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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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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 258000 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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