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データを開く
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基本情報
登録情報 | データベース: SASBDB / ID: SASDAV3 |
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![]() | Geminin:Cdt1 2:1 heterotrimer
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機能・相同性 | ![]() DNA replication preinitiation complex assembly / response to sorbitol / positive regulation of DNA-templated DNA replication / Switching of origins to a post-replicative state / regulation of nuclear cell cycle DNA replication / negative regulation of DNA-templated DNA replication / DNA replication checkpoint signaling / attachment of mitotic spindle microtubules to kinetochore / positive regulation of chromatin binding / regulation of DNA-templated DNA replication initiation ...DNA replication preinitiation complex assembly / response to sorbitol / positive regulation of DNA-templated DNA replication / Switching of origins to a post-replicative state / regulation of nuclear cell cycle DNA replication / negative regulation of DNA-templated DNA replication / DNA replication checkpoint signaling / attachment of mitotic spindle microtubules to kinetochore / positive regulation of chromatin binding / regulation of DNA-templated DNA replication initiation / G1/S-Specific Transcription / negative regulation of DNA replication / regulation of DNA replication / negative regulation of cell cycle / Activation of the pre-replicative complex / DNA polymerase binding / regulation of mitotic cell cycle / transcription repressor complex / positive regulation of DNA replication / Assembly of the pre-replicative complex / animal organ morphogenesis / kinetochore / histone deacetylase binding / Orc1 removal from chromatin / transcription corepressor activity / mitotic cell cycle / DNA-binding transcription factor binding / nuclear body / cell division / negative regulation of DNA-templated transcription / chromatin binding / DNA binding / nucleoplasm / nucleus / cytoplasm / cytosol 類似検索 - 分子機能 |
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![]() | ![]() タイトル: Quaternary structure of the human Cdt1-Geminin complex regulates DNA replication licensing. 著者: V De Marco / P J Gillespie / A Li / N Karantzelis / E Christodoulou / R Klompmaker / S van Gerwen / A Fish / M V Petoukhov / M S Iliou / Z Lygerou / R H Medema / J J Blow / D I Svergun / S ...著者: V De Marco / P J Gillespie / A Li / N Karantzelis / E Christodoulou / R Klompmaker / S van Gerwen / A Fish / M V Petoukhov / M S Iliou / Z Lygerou / R H Medema / J J Blow / D I Svergun / S Taraviras / A Perrakis / ![]() 要旨: All organisms need to ensure that no DNA segments are rereplicated in a single cell cycle. Eukaryotes achieve this through a process called origin licensing, which involves tight spatiotemporal ...All organisms need to ensure that no DNA segments are rereplicated in a single cell cycle. Eukaryotes achieve this through a process called origin licensing, which involves tight spatiotemporal control of the assembly of prereplicative complexes (pre-RCs) onto chromatin. Cdt1 is a key component and crucial regulator of pre-RC assembly. In higher eukaryotes, timely inhibition of Cdt1 by Geminin is essential to prevent DNA rereplication. Here, we address the mechanism of DNA licensing inhibition by Geminin, by combining X-ray crystallography, small-angle X-ray scattering, and functional studies in Xenopus and mammalian cells. Our findings show that the Cdt1:Geminin complex can exist in two distinct forms, a "permissive" heterotrimer and an "inhibitory" heterohexamer. Specific Cdt1 residues, buried in the heterohexamer, are important for licensing. We postulate that the transition between the heterotrimer and the heterohexamer represents a molecular switch between licensing-competent and licensing-defective states. |
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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
-モデル
モデル #40 | ![]() タイプ: atomic / ソフトウェア: Crysol / カイ2乗値: 3.748096 ![]() |
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試料
![]() | 名称: Geminin:Cdt1 2:1 heterotrimer / Sample MW: 107.53 kDa / Entity id: 38 / 39 |
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バッファ | 名称: Tris75 / 濃度: 25.00 mM / pH: 7.5 / 組成: NaCl 200.000 mM |
要素 #38 | タイプ: protein / 記述: Geminin / 分子量: 23.57 / 分子数: 2 / 由来: Homo sapiens / 参照: UniProt: O75496 配列: MNPSMKQKQE EIKENIKNSS VPRRTLKMIQ PSASGSLVGR ENELSAGLSK RKHRNDHLTS TTSSPGVIVP ESSENKNLGG VTQESFDLMI KENPSSQYWK EVAEKRRKAL YEALKENEKL HKEIEQKDNE IARLKKENKE LAEVAEHVQY MAELIERLNG EPLDNFESLD ...配列: MNPSMKQKQE EIKENIKNSS VPRRTLKMIQ PSASGSLVGR ENELSAGLSK RKHRNDHLTS TTSSPGVIVP ESSENKNLGG VTQESFDLMI KENPSSQYWK EVAEKRRKAL YEALKENEKL HKEIEQKDNE IARLKKENKE LAEVAEHVQY MAELIERLNG EPLDNFESLD NQEFDSEEET VEDSLVEDSE IGTCAEGTVS SSTDAKPCI |
要素 #39 | 名称: Cdt1 / タイプ: protein / 記述: DNA replication factor Cdt1 / 分子量: 60.39 / 分子数: 1 / 由来: Homo sapiens / 参照: UniProt: Q9H211 配列: MEQRRVTDFF ARRRPGPPRI APPKLACRTP SPARPALRAP ASATSGSRKR ARPPAAPGRD QARPPARRRL RLSVDEVSSP STPEAPDIPA CPSPGQKIKK STPAAGQPPH LTSAQDQDTI SELASCLQRA RELGARVRAL KASAQDAGES CTPEAEGRPE EPCGEKAPAY ...配列: MEQRRVTDFF ARRRPGPPRI APPKLACRTP SPARPALRAP ASATSGSRKR ARPPAAPGRD QARPPARRRL RLSVDEVSSP STPEAPDIPA CPSPGQKIKK STPAAGQPPH LTSAQDQDTI SELASCLQRA RELGARVRAL KASAQDAGES CTPEAEGRPE EPCGEKAPAY QRFHALAQPG LPGLVLPYKY QVLAEMFRSM DTIVGMLHNR SETPTFAKVQ RGVQDMMRRR FEECNVGQIK TVYPASYRFR QERSVPTFKD GTRRSDYQLT IEPLLEQEAD GAAPQLTASR LLQRRQIFSQ KLVEHVKEHH KAFLASLSPA MVVPEDQLTR WHPRFNVDEV PDIEPAALPQ PPATEKLTTA QEVLARARNL ISPRMEKALS QLALRSAAPS SPGSPRPALP ATPPATPPAA SPSALKGVSQ DLLERIRAKE AQKQLAQMTR CPEQEQRLQR LERLPELARV LRSVFVSERK PALSMEVACA RMVGSCCTIM SPGEMEKHLL LLSELLPDWL SLHRIRTDTY VKLDKAADLA HITARLAHQT RAEEGL |
-実験情報
ビーム | 設備名称: ![]() ![]() ![]() | |||||||||
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検出器 | 名称: MAR 345 Image Plate | |||||||||
スキャン |
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結果 | I0 from Guinier: 150.448 / Rg from Guinier: 2.9 nm / D max: 10 / カーブのタイプ: single_conc /
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