- EMDB-10536: SUMOylated apoAPC/C with repositioned APC2 WHB domain -
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基本情報
登録情報
データベース: EMDB / ID: EMD-10536
タイトル
SUMOylated apoAPC/C with repositioned APC2 WHB domain
マップデータ
試料
複合体: SUMOylated apoAPC/C with repositioned APC2 WHB domain
複合体: Body 2 with repositioned APC2 WHB domain after multi body refinement
タンパク質・ペプチド: x 14種
複合体: Unidentified peptide
タンパク質・ペプチド: x 1種
リガンド: x 1種
機能・相同性
機能・相同性情報
positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of mitotic cell cycle spindle assembly checkpoint / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / 後期促進複合体 / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / metaphase/anaphase transition of mitotic cell cycle / anaphase-promoting complex-dependent catabolic process ...positive regulation of synapse maturation / Conversion from APC/C:Cdc20 to APC/C:Cdh1 in late anaphase / regulation of mitotic cell cycle spindle assembly checkpoint / Inactivation of APC/C via direct inhibition of the APC/C complex / APC/C:Cdc20 mediated degradation of mitotic proteins / 後期促進複合体 / Aberrant regulation of mitotic exit in cancer due to RB1 defects / regulation of meiotic cell cycle / metaphase/anaphase transition of mitotic cell cycle / anaphase-promoting complex-dependent catabolic process / regulation of exit from mitosis / positive regulation of synaptic plasticity / Phosphorylation of the APC/C / positive regulation of mitotic metaphase/anaphase transition / protein K11-linked ubiquitination / enzyme-substrate adaptor activity / regulation of mitotic metaphase/anaphase transition / positive regulation of dendrite morphogenesis / ubiquitin-ubiquitin ligase activity / mitotic metaphase chromosome alignment / Regulation of APC/C activators between G1/S and early anaphase / cullin family protein binding / Transcriptional Regulation by VENTX / positive regulation of axon extension / ヘテロクロマチン / APC/C:Cdc20 mediated degradation of Cyclin B / regulation of mitotic cell cycle / APC-Cdc20 mediated degradation of Nek2A / nuclear periphery / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Assembly of the pre-replicative complex / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / brain development / 紡錘体 / CDK-mediated phosphorylation and removal of Cdc6 / 動原体 / spindle / Separation of Sister Chromatids / ubiquitin-protein transferase activity / microtubule cytoskeleton / ubiquitin protein ligase activity / Antigen processing: Ubiquitination & Proteasome degradation / nervous system development / mitotic cell cycle / Senescence-Associated Secretory Phenotype (SASP) / ubiquitin-dependent protein catabolic process / protein phosphatase binding / molecular adaptor activity / 細胞分化 / protein ubiquitination / 細胞周期 / 細胞分裂 / negative regulation of gene expression / 中心体 / ubiquitin protein ligase binding / 核小体 / zinc ion binding / 核質 / 細胞核 / 細胞質基質 / 細胞質 類似検索 - 分子機能
ジャーナル: Cell Rep / 年: 2021 タイトル: Molecular mechanisms of APC/C release from spindle assembly checkpoint inhibition by APC/C SUMOylation. 著者: Stanislau Yatskevich / Jessie S Kroonen / Claudio Alfieri / Thomas Tischer / Anna C Howes / Linda Clijsters / Jing Yang / Ziguo Zhang / Kaige Yan / Alfred C O Vertegaal / David Barford / 要旨: The anaphase-promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle transitions. Its regulation by the spindle assembly checkpoint (SAC) is coordinated with the ...The anaphase-promoting complex/cyclosome (APC/C) is an E3 ubiquitin ligase that controls cell cycle transitions. Its regulation by the spindle assembly checkpoint (SAC) is coordinated with the attachment of sister chromatids to the mitotic spindle. APC/C SUMOylation on APC4 ensures timely anaphase onset and chromosome segregation. To understand the structural and functional consequences of APC/C SUMOylation, we reconstituted SUMOylated APC/C for electron cryo-microscopy and biochemical analyses. SUMOylation of the APC/C causes a substantial rearrangement of the WHB domain of APC/C's cullin subunit (APC2). Although APC/C SUMOylation results in a modest impact on normal APC/C activity, repositioning APC2 reduces the affinity of APC/C for the mitotic checkpoint complex (MCC), the effector of the SAC. This attenuates MCC-mediated suppression of APC/C activity, allowing for more efficient ubiquitination of APC/C substrates in the presence of the MCC. Thus, SUMOylation stimulates the reactivation of APC/C when the SAC is silenced, contributing to timely anaphase onset.