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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: PDB / ID: 7pg9 | |||||||||||||||||||||||||||
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| タイトル | human 20S proteasome | |||||||||||||||||||||||||||
要素 |
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キーワード | HYDROLASE / 20S proteasome / human | |||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報purine ribonucleoside triphosphate binding / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Somitogenesis / myofibril / immune system process / NF-kappaB binding / proteasome endopeptidase complex ...purine ribonucleoside triphosphate binding / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Somitogenesis / myofibril / immune system process / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome assembly / threonine-type endopeptidase activity / proteasome core complex, alpha-subunit complex / proteasome complex / : / sarcomere / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Asymmetric localization of PCP proteins / Ubiquitin-dependent degradation of Cyclin D / SCF-beta-TrCP mediated degradation of Emi1 / NIK-->noncanonical NF-kB signaling / TNFR2 non-canonical NF-kB pathway / AUF1 (hnRNP D0) binds and destabilizes mRNA / Assembly of the pre-replicative complex / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / negative regulation of inflammatory response to antigenic stimulus / Vpu mediated degradation of CD4 / P-body / Degradation of DVL / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of AXIN / lipopolysaccharide binding / Hh mutants are degraded by ERAD / Activation of NF-kappaB in B cells / G2/M Checkpoints / Degradation of GLI1 by the proteasome / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Regulation of RUNX3 expression and activity / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Hedgehog 'on' state / Vif-mediated degradation of APOBEC3G / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / MAPK6/MAPK4 signaling / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / ABC-family proteins mediated transport / CDK-mediated phosphorylation and removal of Cdc6 / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / response to virus / FCERI mediated NF-kB activation / nuclear matrix / Regulation of expression of SLITs and ROBOs / Regulation of PTEN stability and activity / Interleukin-1 signaling / Orc1 removal from chromatin / Regulation of RAS by GAPs / Regulation of RUNX2 expression and activity / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids / UCH proteinases / KEAP1-NFE2L2 pathway / Downstream TCR signaling / peptidase activity / Antigen processing: Ubiquitination & Proteasome degradation / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / ER-Phagosome pathway / response to oxidative stress / regulation of inflammatory response / secretory granule lumen / endopeptidase activity / ficolin-1-rich granule lumen / proteasome-mediated ubiquitin-dependent protein catabolic process / positive regulation of canonical NF-kappaB signal transduction / Ub-specific processing proteases / nuclear body / cilium / ciliary basal body / cadherin binding / ribosome / intracellular membrane-bounded organelle / ubiquitin protein ligase binding / Neutrophil degranulation / centrosome / mitochondrion / proteolysis / RNA binding / extracellular exosome / extracellular region 類似検索 - 分子機能 | |||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||||||||||||||||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.7 Å | |||||||||||||||||||||||||||
データ登録者 | Xu, C. / Cong, Y. | |||||||||||||||||||||||||||
| 資金援助 | イスラエル, 1件
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引用 | ジャーナル: Nat Commun / 年: 2021タイトル: The 20S as a stand-alone proteasome in cells can degrade the ubiquitin tag. 著者: Indrajit Sahu / Sachitanand M Mali / Prasad Sulkshane / Cong Xu / Andrey Rozenberg / Roni Morag / Manisha Priyadarsini Sahoo / Sumeet K Singh / Zhanyu Ding / Yifan Wang / Sharleen Day / Yao ...著者: Indrajit Sahu / Sachitanand M Mali / Prasad Sulkshane / Cong Xu / Andrey Rozenberg / Roni Morag / Manisha Priyadarsini Sahoo / Sumeet K Singh / Zhanyu Ding / Yifan Wang / Sharleen Day / Yao Cong / Oded Kleifeld / Ashraf Brik / Michael H Glickman / ![]() 要旨: The proteasome, the primary protease for ubiquitin-dependent proteolysis in eukaryotes, is usually found as a mixture of 30S, 26S, and 20S complexes. These complexes have common catalytic sites, ...The proteasome, the primary protease for ubiquitin-dependent proteolysis in eukaryotes, is usually found as a mixture of 30S, 26S, and 20S complexes. These complexes have common catalytic sites, which makes it challenging to determine their distinctive roles in intracellular proteolysis. Here, we chemically synthesize a panel of homogenous ubiquitinated proteins, and use them to compare 20S and 26S proteasomes with respect to substrate selection and peptide-product generation. We show that 20S proteasomes can degrade the ubiquitin tag along with the conjugated substrate. Ubiquitin remnants on branched peptide products identified by LC-MS/MS, and flexibility in the 20S gate observed by cryo-EM, reflect the ability of the 20S proteasome to proteolyze an isopeptide-linked ubiquitin-conjugate. Peptidomics identifies proteasome-trapped ubiquitin-derived peptides and peptides of potential 20S substrates in Hi20S cells, hypoxic cells, and human failing-heart. Moreover, elevated levels of 20S proteasomes appear to contribute to cell survival under stress associated with damaged proteins. | |||||||||||||||||||||||||||
| 履歴 |
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構造の表示
| ムービー |
ムービービューア |
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| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 7pg9.cif.gz | 1013 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb7pg9.ent.gz | 815.5 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 7pg9.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/pg/7pg9 ftp://data.pdbj.org/pub/pdb/validation_reports/pg/7pg9 | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
| 登録構造単位 | ![]()
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要素
-Proteasome subunit alpha type- ... , 7種, 14分子 AOBPCQDRESFTGU
| #1: タンパク質 | 分子量: 27432.459 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P60900#2: タンパク質 | 分子量: 25927.535 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P25787#3: タンパク質 | 分子量: 29525.842 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P25789#4: タンパク質 | 分子量: 27929.891 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: O14818#5: タンパク質 | 分子量: 26435.977 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P28066#6: タンパク質 | 分子量: 29595.627 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P25786#7: タンパク質 | 分子量: 28469.252 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P25788 |
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-Proteasome subunit beta type- ... , 7種, 14分子 HVIWJXKYLZMaNb
| #8: タンパク質 | 分子量: 21921.836 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P28072, proteasome endopeptidase complex#9: タンパク質 | 分子量: 25321.980 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: Q99436, proteasome endopeptidase complex#10: タンパク質 | 分子量: 22972.896 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P49720, proteasome endopeptidase complex#11: タンパク質 | 分子量: 22864.277 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P49721, proteasome endopeptidase complex#12: タンパク質 | 分子量: 22484.369 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P28074, proteasome endopeptidase complex#13: タンパク質 | 分子量: 23578.986 Da / 分子数: 2 / Fragment: 20S CORE / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P20618, proteasome endopeptidase complex#14: タンパク質 | 分子量: 24414.740 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) Homo sapiens (ヒト) / 参照: UniProt: P28070, proteasome endopeptidase complex |
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-詳細
| Has protein modification | N |
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-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
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| EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
| 構成要素 | 名称: human 20S proteasome / タイプ: COMPLEX / Entity ID: all / 由来: NATURAL |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.4 |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TITAN KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 38 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.10.1_2155: / 分類: 精密化 | ||||||||||||||||||||||||
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| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 154436 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)
イスラエル, 1件
引用

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