+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-0781 | |||||||||
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タイトル | human PA200-20S complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | proteasome activator / HYDROLASE | |||||||||
機能・相同性 | 機能・相同性情報 spermatoproteasome complex / sperm DNA condensation / peptidase activator activity / purine ribonucleoside triphosphate binding / regulation of endopeptidase activity / Regulation of ornithine decarboxylase (ODC) / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / proteasomal ubiquitin-independent protein catabolic process ...spermatoproteasome complex / sperm DNA condensation / peptidase activator activity / purine ribonucleoside triphosphate binding / regulation of endopeptidase activity / Regulation of ornithine decarboxylase (ODC) / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / proteasomal ubiquitin-independent protein catabolic process / immune system process / myofibril / proteasome binding / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome core complex, alpha-subunit complex / threonine-type endopeptidase activity / negative regulation of inflammatory response to antigenic stimulus / lysine-acetylated histone binding / : / sarcomere / proteasome complex / Regulation of activated PAK-2p34 by proteasome mediated degradation / ciliary basal body / 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 / CDK-mediated phosphorylation and removal of Cdc6 / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Dectin-1 mediated noncanonical NF-kB signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Hh mutants are degraded by ERAD / lipopolysaccharide binding / SCF(Skp2)-mediated degradation of p27/p21 / Degradation of AXIN / Degradation of GLI1 by the proteasome / Activation of NF-kappaB in B cells / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / G2/M Checkpoints / Vif-mediated degradation of APOBEC3G / Autodegradation of the E3 ubiquitin ligase COP1 / Hedgehog 'on' state / Regulation of RUNX3 expression and activity / P-body / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / Orc1 removal from chromatin / 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 / CLEC7A (Dectin-1) signaling / Regulation of expression of SLITs and ROBOs / FCERI mediated NF-kB activation / nuclear matrix / Regulation of PTEN stability and activity / Interleukin-1 signaling / 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 / regulation of inflammatory response / Downstream TCR signaling / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / positive regulation of NF-kappaB transcription factor activity / peptidase activity / ER-Phagosome pathway / endopeptidase activity / proteasome-mediated ubiquitin-dependent protein catabolic process / secretory granule lumen / response to oxidative stress / ficolin-1-rich granule lumen / postsynapse / nuclear body / ribosome / Ub-specific processing proteases / nuclear speck / cadherin binding / intracellular membrane-bounded organelle 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: 2.72 Å | |||||||||
データ登録者 | Ouyang S / Hongxin G | |||||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: PLoS Biol / 年: 2020 タイトル: Cryo-EM structures of the human PA200 and PA200-20S complex reveal regulation of proteasome gate opening and two PA200 apertures. 著者: Hongxin Guan / Youwang Wang / Ting Yu / Yini Huang / Mianhuan Li / Abdullah F U H Saeed / Vanja Perčulija / Daliang Li / Jia Xiao / Dongmei Wang / Ping Zhu / Songying Ouyang / 要旨: Proteasomes are highly abundant and conserved protease complexes that eliminate unwanted proteins in the cells. As a single-chain ATP-independent nuclear proteasome activator, proteasome activator ...Proteasomes are highly abundant and conserved protease complexes that eliminate unwanted proteins in the cells. As a single-chain ATP-independent nuclear proteasome activator, proteasome activator 200 (PA200) associates with 20S core particle to form proteasome complex that catalyzes polyubiquitin-independent degradation of acetylated histones, thus playing a pivotal role in DNA repair and spermatogenesis. Here, we present cryo-electron microscopy (cryo-EM) structures of the human PA200-20S complex and PA200 at 2.72 Å and 3.75 Å, respectively. PA200 exhibits a dome-like architecture that caps 20S and uses its C-terminal YYA (Tyr-Tyr-Ala) to induce the α-ring rearrangements and partial opening of the 20S gate. Our structural data also indicate that PA200 has two openings formed by numerous positively charged residues that respectively bind (5,6)-bisdiphosphoinositol tetrakisphosphate (5,6[PP]2-InsP4) and inositol hexakisphosphate (InsP6) and are likely to be the gates that lead unfolded proteins through PA200 and into the 20S. Besides, our structural analysis of PA200 found that the bromodomain (BRD)-like (BRDL) domain of PA200 shows considerable sequence variation in comparison to other human BRDs, as it contains only 82 residues because of a short ZA loop, and cannot be classified into any of the eight typical human BRD families. Taken together, the results obtained from this study provide important insights into human PA200-induced 20S gate opening for substrate degradation and the opportunities to explore the mechanism for its recognition of H4 histone in acetylation-mediated proteasomal degradation. | |||||||||
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 | 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_0781.map.gz | 14.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-0781-v30.xml emd-0781.xml | 30.1 KB 30.1 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_0781_fsc.xml | 12.7 KB | 表示 | FSCデータファイル |
画像 | emd_0781.png | 58.8 KB | ||
Filedesc metadata | emd-0781.cif.gz | 9.2 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-0781 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-0781 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_0781_validation.pdf.gz | 433.3 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_0781_full_validation.pdf.gz | 432.9 KB | 表示 | |
XML形式データ | emd_0781_validation.xml.gz | 13 KB | 表示 | |
CIF形式データ | emd_0781_validation.cif.gz | 17.6 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0781 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-0781 | HTTPS FTP |
-関連構造データ
-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_0781.map.gz / 形式: CCP4 / 大きさ: 178 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.04 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
+全体 : complex of human PA200-20S
+超分子 #1: complex of human PA200-20S
+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 subunit beta type-7
+分子 #9: Proteasome subunit beta type-3
+分子 #10: Proteasome subunit beta type-2
+分子 #11: Proteasome subunit beta type-5
+分子 #12: Proteasome subunit beta type-1
+分子 #13: Proteasome subunit beta type-4
+分子 #14: Proteasome subunit beta type-6
+分子 #15: Proteasome activator complex subunit 4
+分子 #16: [(1~{S},2~{R},3~{R},4~{S},5~{S},6~{R})-2-[oxidanyl(phosphonooxy)p...
+分子 #17: INOSITOL HEXAKISPHOSPHATE
-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 |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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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: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |