+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-18761 | |||||||||||||||
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タイトル | Human preholo proteasome 20S core particle | |||||||||||||||
マップデータ | ||||||||||||||||
試料 |
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キーワード | Complex / HYDROLASE | |||||||||||||||
機能・相同性 | 機能・相同性情報 cerebellar granule cell precursor proliferation / purine ribonucleoside triphosphate binding / regulation of endopeptidase activity / protein folding chaperone complex / Regulation of ornithine decarboxylase (ODC) / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / : / proteasome core complex assembly / Somitogenesis ...cerebellar granule cell precursor proliferation / purine ribonucleoside triphosphate binding / regulation of endopeptidase activity / protein folding chaperone complex / Regulation of ornithine decarboxylase (ODC) / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / : / proteasome core complex assembly / Somitogenesis / myofibril / immune system process / proteasome binding / mitotic spindle assembly checkpoint signaling / NF-kappaB binding / chaperone-mediated protein complex assembly / proteasome assembly / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome core complex, alpha-subunit complex / threonine-type endopeptidase activity / sarcomere / proteasome complex / ciliary basal body / Regulation of activated PAK-2p34 by proteasome mediated degradation / proteolysis involved in protein catabolic process / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Asymmetric localization of PCP proteins / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / TNFR2 non-canonical NF-kB pathway / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Degradation of DVL / negative regulation of inflammatory response to antigenic stimulus / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / lipopolysaccharide binding / Hh mutants are degraded by ERAD / Degradation of AXIN / Activation of NF-kappaB in B cells / Degradation of GLI1 by the proteasome / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / G2/M Checkpoints / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Autodegradation of the E3 ubiquitin ligase COP1 / Vif-mediated degradation of APOBEC3G / P-body / Regulation of RUNX3 expression and activity / Hedgehog 'on' state / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / MAPK6/MAPK4 signaling / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / response to virus / Degradation of beta-catenin by the destruction complex / ABC-family proteins mediated transport / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / response to organic cyclic compound / CDK-mediated phosphorylation and removal of Cdc6 / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / Regulation of expression of SLITs and ROBOs / FCERI mediated NF-kB activation / nuclear matrix / Regulation of PTEN stability and activity / Interleukin-1 signaling / Orc1 removal from chromatin / Regulation of RAS by GAPs / Separation of Sister Chromatids / Regulation of RUNX2 expression and activity / The role of GTSE1 in G2/M progression after G2 checkpoint / UCH proteinases / KEAP1-NFE2L2 pathway / Antigen processing: Ubiquitination & Proteasome degradation / Downstream TCR signaling / peptidase activity / positive regulation of NF-kappaB transcription factor activity / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / ER-Phagosome pathway / regulation of inflammatory response / secretory granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / endopeptidase activity / ficolin-1-rich granule lumen / postsynapse / response to oxidative stress / molecular adaptor activity / nuclear body / Ub-specific processing proteases / ribosome / nuclear speck 類似検索 - 分子機能 | |||||||||||||||
生物種 | Homo sapiens (ヒト) | |||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.89 Å | |||||||||||||||
データ登録者 | Schulman BA / Hanna JW / Harper JW / Adolf F / Du J / Rawson SD / Walsh Jr RM / Goodall EA | |||||||||||||||
資金援助 | ドイツ, 米国, 4件
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引用 | ジャーナル: bioRxiv / 年: 2024 タイトル: Visualizing chaperone-mediated multistep assembly of the human 20S proteasome. 著者: Frank Adolf / Jiale Du / Ellen A Goodall / Richard M Walsh / Shaun Rawson / Susanne von Gronau / J Wade Harper / John Hanna / Brenda A Schulman / 要旨: Dedicated assembly factors orchestrate stepwise production of many molecular machines, including the 28-subunit proteasome core particle (CP) that mediates protein degradation. Here, we report cryo- ...Dedicated assembly factors orchestrate stepwise production of many molecular machines, including the 28-subunit proteasome core particle (CP) that mediates protein degradation. Here, we report cryo-EM reconstructions of seven recombinant human subcomplexes that visualize all five chaperones and the three active site propeptides across a wide swath of the assembly pathway. Comparison of these chaperone-bound intermediates and a matching mature CP reveals molecular mechanisms determining the order of successive subunit additions, and how proteasome subcomplexes and assembly factors structurally adapt upon progressive subunit incorporation to stabilize intermediates, facilitate the formation of subsequent intermediates, and ultimately rearrange to coordinate proteolytic activation with gated access to active sites. The structural findings reported here explain many previous biochemical and genetic observations. This work establishes a methodologic approach for structural analysis of multiprotein complex assembly intermediates, illuminates specific functions of assembly factors, and reveals conceptual principles underlying human proteasome biogenesis. | |||||||||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_18761.map.gz | 9.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-18761-v30.xml emd-18761.xml | 37.4 KB 37.4 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_18761_fsc.xml | 5.5 KB | 表示 | FSCデータファイル |
画像 | emd_18761.png | 67.2 KB | ||
マスクデータ | emd_18761_msk_1.map | 18.1 MB | マスクマップ | |
Filedesc metadata | emd-18761.cif.gz | 8.9 KB | ||
その他 | emd_18761_additional_1.map.gz emd_18761_half_map_1.map.gz emd_18761_half_map_2.map.gz | 16.8 MB 16.7 MB 16.7 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-18761 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-18761 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_18761_validation.pdf.gz | 989.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_18761_full_validation.pdf.gz | 989.4 KB | 表示 | |
XML形式データ | emd_18761_validation.xml.gz | 12.6 KB | 表示 | |
CIF形式データ | emd_18761_validation.cif.gz | 15.9 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18761 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-18761 | HTTPS FTP |
-関連構造データ
関連構造データ | 8qysMC 8qyjC 8qylC 8qymC 8qynC 8qyoC 8qz9C M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「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_18761.map.gz / 形式: CCP4 / 大きさ: 18.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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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: 1.885 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-マスク #1
ファイル | emd_18761_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: #1
ファイル | emd_18761_additional_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_18761_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_18761_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : Human preholo proteasome 20S core particle
+超分子 #1: Human preholo proteasome 20S core particle
+分子 #1: Proteasome subunit alpha type-2
+分子 #2: Proteasome subunit alpha type-4
+分子 #3: Proteasome subunit alpha type-7
+分子 #4: Proteasome subunit alpha type-5
+分子 #5: Proteasome subunit alpha type-1
+分子 #6: Proteasome subunit alpha type-3
+分子 #7: Proteasome subunit alpha type-6
+分子 #8: Proteasome maturation protein
+分子 #9: Proteasome assembly chaperone 1
+分子 #10: Proteasome assembly chaperone 2
+分子 #11: Proteasome subunit beta type-7
+分子 #12: Proteasome subunit beta type-3
+分子 #13: Proteasome subunit beta type-2
+分子 #14: Proteasome subunit beta type-5
+分子 #15: Proteasome subunit beta type-1
+分子 #16: Proteasome subunit beta type-4
+分子 #17: Proteasome subunit beta type-6
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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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 |
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凍結 | 凍結剤: ETHANE-PROPANE |
-電子顕微鏡法
顕微鏡 | TFS GLACIOS |
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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: 60.0 e/Å2 |
電子線 | 加速電圧: 200 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 / 最大 デフォーカス(公称値): 2.6 µm / 最小 デフォーカス(公称値): 1.0 µm |