登録情報 データベース : EMDB / ID : EMD-19529 ダウンロードとリンクタイトル 20S proteasome from pre1-1 マップデータ 詳細 試料複合体 : 20S proteasome from pre1-1リガンド : x 1種 詳細 キーワード proteasome biogenesis / Ump1 / pre1-1 / cryo-EM / propertied maturation / HYDROLASE機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / proteasomal ubiquitin-independent protein catabolic process / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Regulation of PTEN stability and activity / CDK-mediated phosphorylation and removal of Cdc6 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis ... proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / TNFR2 non-canonical NF-kB pathway / proteasomal ubiquitin-independent protein catabolic process / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Regulation of PTEN stability and activity / CDK-mediated phosphorylation and removal of Cdc6 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / KEAP1-NFE2L2 pathway / Neddylation / Orc1 removal from chromatin / MAPK6/MAPK4 signaling / proteasome storage granule / Antigen processing: Ubiquitination & Proteasome degradation / endopeptidase activator activity / Ub-specific processing proteases / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / Neutrophil degranulation / proteasome complex / peroxisome / endopeptidase activity / proteasome-mediated ubiquitin-dependent protein catabolic process / mRNA binding / endoplasmic reticulum membrane / mitochondrion / nucleus / cytosol 類似検索 - 分子機能 Proteasome beta subunit, C-terminal / Proteasome beta subunits C terminal / Proteasome subunit beta 4 / Proteasome subunit beta 2 / Proteasome beta 3 subunit / Proteasome subunit alpha6 / Proteasome subunit alpha5 / Proteasome beta-type subunits signature. / Peptidase T1A, proteasome beta-subunit / Proteasome beta-type subunit, conserved site ... Proteasome beta subunit, C-terminal / Proteasome beta subunits C terminal / Proteasome subunit beta 4 / Proteasome subunit beta 2 / Proteasome beta 3 subunit / Proteasome subunit alpha6 / Proteasome subunit alpha5 / Proteasome beta-type subunits signature. / Peptidase T1A, proteasome beta-subunit / Proteasome beta-type subunit, conserved site / Proteasome subunit A N-terminal signature / Proteasome alpha-type subunits signature. / Proteasome alpha-subunit, N-terminal domain / Proteasome subunit A N-terminal signature Add an annotation / Proteasome B-type subunit / Proteasome beta-type subunit profile. / : / Proteasome alpha-type subunit / Proteasome alpha-type subunit profile. / Proteasome subunit / Proteasome, subunit alpha/beta / Nucleophile aminohydrolases, N-terminal 類似検索 - ドメイン・相同性 Probable proteasome subunit alpha type-7 / Proteasome subunit alpha type-1 / Proteasome subunit beta type-4 / Proteasome subunit alpha type-3 / Proteasome subunit alpha type-2 / Proteasome subunit beta type-6 / Proteasome subunit beta type-2 / Proteasome subunit beta type-3 / Proteasome subunit beta type-5 / Proteasome subunit beta type-7 ... Probable proteasome subunit alpha type-7 / Proteasome subunit alpha type-1 / Proteasome subunit beta type-4 / Proteasome subunit alpha type-3 / Proteasome subunit alpha type-2 / Proteasome subunit beta type-6 / Proteasome subunit beta type-2 / Proteasome subunit beta type-3 / Proteasome subunit beta type-5 / Proteasome subunit beta type-7 / Proteasome subunit alpha type-5 / Proteasome subunit beta type-1 / Proteasome subunit alpha type-6 / Proteasome subunit alpha type-4 類似検索 - 構成要素生物種 Saccharomyces cerevisiae (パン酵母)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 2.02 Å 詳細 データ登録者Mark E / Ramos PC / Kayser F / Hoeckendorff J / Dohmen RJ / Wendler P 資金援助 ドイツ, European Union, 3件 詳細 詳細を隠すOrganization Grant number 国 German Research Foundation (DFG) 406260942 ドイツ German Research Foundation (DFG) 442219341 ドイツ iNEXT 23209 European Union
引用ジャーナル : Life Sci Alliance / 年 : 2024タイトル : Structural roles of Ump1 and β-subunit propeptides in proteasome biogenesis.著者 : Eric Mark / Paula C Ramos / Fleur Kayser / Jörg Höckendorff / R Jürgen Dohmen / Petra Wendler / 要旨 : The yeast (β4-S142F) mutant accumulates late 20S proteasome core particle precursor complexes (late-PCs). We report a 2.1 Å cryo-EM structure of this intermediate with full-length Ump1 trapped ... The yeast (β4-S142F) mutant accumulates late 20S proteasome core particle precursor complexes (late-PCs). We report a 2.1 Å cryo-EM structure of this intermediate with full-length Ump1 trapped inside, and Pba1-Pba2 attached to the α-ring surfaces. The structure discloses intimate interactions of Ump1 with β2- and β5-propeptides, which together fill most of the antechambers between the α- and β-rings. The β5-propeptide is unprocessed and separates Ump1 from β6 and β7. The β2-propeptide is disconnected from the subunit by autocatalytic processing and localizes between Ump1 and β3. A comparison of different proteasome maturation states reveals that maturation goes along with global conformational changes in the rings, initiated by structuring of the proteolytic sites and their autocatalytic activation. In the strain, β2 is activated first enabling processing of β1-, β6-, and β7-propeptides. Subsequent maturation of β5 and β1 precedes degradation of Ump1, tightening of the complex, and finally release of Pba1-Pba2. 履歴 登録 2024年2月1日 - ヘッダ(付随情報) 公開 2024年9月11日 - マップ公開 2024年9月11日 - 更新 2024年9月25日 - 現状 2024年9月25日 処理サイト : PDBe / 状態 : 公開
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