+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-9769 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Yeast proteasome in translocation competent state (C3-a) | |||||||||
マップデータ | Translocation competent C3-a | |||||||||
試料 |
| |||||||||
機能・相同性 | 機能・相同性情報 SAGA complex localization to transcription regulatory region / Metalloprotease DUBs / peroxisome fission / proteasome storage granule assembly / transcription export complex 2 / proteasome regulatory particle assembly / protein deneddylation / maintenance of DNA trinucleotide repeats / filamentous growth / COP9 signalosome ...SAGA complex localization to transcription regulatory region / Metalloprotease DUBs / peroxisome fission / proteasome storage granule assembly / transcription export complex 2 / proteasome regulatory particle assembly / protein deneddylation / maintenance of DNA trinucleotide repeats / filamentous growth / COP9 signalosome / proteasome regulatory particle / cytosolic proteasome complex / proteasome regulatory particle, lid subcomplex / protein-containing complex localization / proteasome-activating activity / mitochondrial fission / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / nonfunctional rRNA decay / K48-linked polyubiquitin modification-dependent protein binding / proteasome core complex assembly / nuclear outer membrane-endoplasmic reticulum membrane network / 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 / peptide catabolic process / KEAP1-NFE2L2 pathway / proteasome binding / CDK-mediated phosphorylation and removal of Cdc6 / Neddylation / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / regulation of protein catabolic process / Orc1 removal from chromatin / MAPK6/MAPK4 signaling / proteasome storage granule / Antigen processing: Ubiquitination & Proteasome degradation / polyubiquitin modification-dependent protein binding / endopeptidase activator activity / protein deubiquitination / proteasome assembly / positive regulation of RNA polymerase II transcription preinitiation complex assembly / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome core complex, alpha-subunit complex / Ub-specific processing proteases / threonine-type endopeptidase activity / mRNA export from nucleus / enzyme regulator activity / ERAD pathway / protein folding chaperone / Neutrophil degranulation / proteasome complex / ubiquitin binding / nucleotide-excision repair / positive regulation of transcription elongation by RNA polymerase II / double-strand break repair via homologous recombination / positive regulation of protein catabolic process / metallopeptidase activity / peroxisome / protein-macromolecule adaptor activity / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / endopeptidase activity / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / molecular adaptor activity / regulation of cell cycle / chromatin remodeling / protein domain specific binding / mRNA binding / ubiquitin protein ligase binding / endoplasmic reticulum membrane / structural molecule activity / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Saccharomyces cerevisiae S288c (パン酵母) / Baker's yeast (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: 7.0 Å | |||||||||
データ登録者 | Cong Y | |||||||||
引用 | ジャーナル: Mol Cell / 年: 2019 タイトル: Structural Snapshots of 26S Proteasome Reveal Tetraubiquitin-Induced Conformations. 著者: Zhanyu Ding / Cong Xu / Indrajit Sahu / Yifan Wang / Zhenglin Fu / Min Huang / Catherine C L Wong / Michael H Glickman / Yao Cong / 要旨: The 26S proteasome is the ATP-dependent protease responsible for regulating the proteome of eukaryotic cells through degradation of mainly ubiquitin-tagged substrates. In order to understand how ...The 26S proteasome is the ATP-dependent protease responsible for regulating the proteome of eukaryotic cells through degradation of mainly ubiquitin-tagged substrates. In order to understand how proteasome responds to ubiquitin signal, we resolved an ensemble of cryo-EM structures of proteasome in the presence of K48-Ub, with three of them resolved at near-atomic resolution. We identified a conformation with stabilized ubiquitin receptors and a previously unreported orientation of the lid, assigned as a Ub-accepted state C1-b. We determined another structure C3-b with localized K48-Ub to the toroid region of Rpn1, assigned as a substrate-processing state. Our structures indicate that tetraUb induced conformational changes in proteasome could initiate substrate degradation. We also propose a CP gate-opening mechanism involving the propagation of the motion of the lid to the gate through the Rpn6-α2 interaction. Our results enabled us to put forward a model of a functional cycle for proteasomes induced by tetraUb and nucleotide. | |||||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_9769.map.gz | 13.8 MB | EMDBマップデータ形式 | |
---|---|---|---|---|
ヘッダ (付随情報) | emd-9769-v30.xml emd-9769.xml | 46.8 KB 46.8 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_9769.png | 145.3 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-9769 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9769 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_9769_validation.pdf.gz | 338.7 KB | 表示 | EMDB検証レポート |
---|---|---|---|---|
文書・詳細版 | emd_9769_full_validation.pdf.gz | 338.3 KB | 表示 | |
XML形式データ | emd_9769_validation.xml.gz | 7.1 KB | 表示 | |
CIF形式データ | emd_9769_validation.cif.gz | 8.1 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9769 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9769 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
---|---|
「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_9769.map.gz / 形式: CCP4 / 大きさ: 178 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Translocation competent C3-a | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.318 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
|
-添付データ
-試料の構成要素
+全体 : yeast 26S proteasome
+超分子 #1: yeast 26S proteasome
+分子 #1: Proteasome subunit beta type-1
+分子 #2: Proteasome subunit beta type-2
+分子 #3: Proteasome subunit beta type-3
+分子 #4: Proteasome subunit beta type-4
+分子 #5: Proteasome subunit beta type-5
+分子 #6: Proteasome subunit beta type-6
+分子 #7: Proteasome subunit beta type-7
+分子 #8: Proteasome subunit alpha type-1
+分子 #9: Proteasome subunit alpha type-2
+分子 #10: Proteasome subunit alpha type-3
+分子 #11: Proteasome subunit alpha type-4
+分子 #12: Proteasome subunit alpha type-5
+分子 #13: Proteasome subunit alpha type-6
+分子 #14: Probable proteasome subunit alpha type-7
+分子 #15: 26S protease regulatory subunit 7 homolog
+分子 #16: 26S protease regulatory subunit 4 homolog
+分子 #17: 26S protease regulatory subunit 8 homolog
+分子 #18: 26S protease regulatory subunit 6B homolog
+分子 #19: 26S protease subunit RPT4
+分子 #20: 26S protease regulatory subunit 6A
+分子 #21: 26S proteasome regulatory subunit RPN2
+分子 #22: 26S proteasome regulatory subunit RPN9
+分子 #23: 26S proteasome regulatory subunit RPN5
+分子 #24: 26S proteasome regulatory subunit RPN6
+分子 #25: 26S proteasome regulatory subunit RPN7
+分子 #26: 26S proteasome regulatory subunit RPN3
+分子 #27: 26S proteasome regulatory subunit RPN12
+分子 #28: 26S proteasome regulatory subunit RPN8
+分子 #29: Ubiquitin carboxyl-terminal hydrolase RPN11
+分子 #30: 26S proteasome regulatory subunit RPN10
+分子 #31: 26S proteasome regulatory subunit RPN13
+分子 #32: 26S proteasome complex subunit SEM1
+分子 #33: 26S proteasome regulatory subunit RPN1
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 |
---|---|
凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 38.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 7.0 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 8320 |
---|---|
初期 角度割当 | タイプ: PROJECTION MATCHING |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |