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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: EMDB / ID: EMD-4877 | |||||||||
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| タイトル | Human 20S Proteasome | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | proteasome / HYDROLASE | |||||||||
| 機能・相同性 | 機能・相同性情報purine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / sperm glycocalyx / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / perinuclear theca / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / myofibril ...purine ribonucleoside triphosphate binding / Antigen processing: Ub, ATP-independent proteasomal degradation / sperm glycocalyx / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / perinuclear theca / proteasome core complex / Cross-presentation of soluble exogenous antigens (endosomes) / Somitogenesis / myofibril / proteasomal ubiquitin-independent protein catabolic process / sperm head-tail coupling apparatus / immune system process / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / threonine-type endopeptidase activity / proteasome assembly / proteasome core complex, alpha-subunit complex / ciliary tip / : / proteasome complex / Regulation of activated PAK-2p34 by proteasome mediated degradation / sarcomere / 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 / sperm end piece / centriole / negative regulation of inflammatory response to antigenic stimulus / P-body / Assembly of the pre-replicative complex / Vpu mediated degradation of CD4 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / lipopolysaccharide binding / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Degradation of CRY and PER proteins / Degradation of AXIN / Hh mutants are degraded by ERAD / Activation of NF-kappaB in B cells / G2/M Checkpoints / Hedgehog ligand biogenesis / Degradation of GLI1 by the proteasome / 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 / 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 / Vif-mediated degradation of APOBEC3G / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / MAPK6/MAPK4 signaling / Degradation of CDH1 / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / ABC-family protein mediated transport / CDK-mediated phosphorylation and removal of Cdc6 / CLEC7A (Dectin-1) signaling / SCF(Skp2)-mediated degradation of p27/p21 / FCERI mediated NF-kB activation / response to virus / Regulation of expression of SLITs and ROBOs / nuclear matrix / 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 / sperm principal piece / RUNX1 regulates transcription of genes involved in differentiation of HSCs / ER-Phagosome pathway / Neddylation / regulation of inflammatory response / response to oxidative stress / sperm midpiece / 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 / cilium / nuclear body 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: 2.6 Å | |||||||||
データ登録者 | Toste Rego A / da Fonseca PCA | |||||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: Mol Cell / 年: 2019タイトル: Characterization of Fully Recombinant Human 20S and 20S-PA200 Proteasome Complexes. 著者: Ana Toste Rêgo / Paula C A da Fonseca / ![]() 要旨: Proteasomes are essential in all eukaryotic cells. However, their function and regulation remain considerably elusive, particularly those of less abundant variants. We demonstrate the human 20S ...Proteasomes are essential in all eukaryotic cells. However, their function and regulation remain considerably elusive, particularly those of less abundant variants. We demonstrate the human 20S proteasome recombinant assembly and confirmed the recombinant complex integrity biochemically and with a 2.6 Å resolution cryo-EM map. To assess its competence to form higher-order assemblies, we prepared and analyzed recombinant human 20S-PA200, a poorly characterized nuclear complex. Its 3.0 Å resolution cryo-EM structure reveals the PA200 unique architecture; the details of its intricate interactions with the proteasome, resulting in unparalleled proteasome α ring rearrangements; and the molecular basis for PA200 allosteric modulation of the proteasome active sites. Non-protein cryo-EM densities could be assigned to PA200-bound inositol phosphates, and we speculate regarding their functional role. Here we open extensive opportunities to study the fundamental properties of the diverse and distinct eukaryotic proteasome variants and to improve proteasome targeting under different therapeutic conditions. | |||||||||
| 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: SurfView Molmil Jmol/JSmol |
| 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_4877.map.gz | 226.2 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-4877-v30.xml emd-4877.xml | 29.1 KB 29.1 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_4877_fsc.xml | 13.3 KB | 表示 | FSCデータファイル |
| 画像 | emd_4877.png | 99.6 KB | ||
| Filedesc metadata | emd-4877.cif.gz | 8.2 KB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-4877 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4877 | HTTPS FTP |
-関連構造データ
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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 |
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マップ
| ファイル | ダウンロード / ファイル: emd_4877.map.gz / 形式: CCP4 / 大きさ: 244.1 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: 0.81 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
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試料の構成要素
+全体 : Human 20S Proteasome
+超分子 #1: Human 20S Proteasome
+分子 #1: Proteasome subunit alpha type-6
+分子 #2: Proteasome subunit alpha type-2
+分子 #3: Proteasome subunit alpha type-4
+分子 #4: Proteasome subunit alpha type-7
+分子 #5: Proteasome subunit alpha type-5
+分子 #6: Proteasome subunit alpha type-1
+分子 #7: Proteasome subunit alpha type-3
+分子 #8: Proteasome subunit beta type-6
+分子 #9: Proteasome subunit beta type-7
+分子 #10: Proteasome subunit beta type-3
+分子 #11: Proteasome subunit beta type-2
+分子 #12: Proteasome subunit beta type-5
+分子 #13: Proteasome subunit beta type-1
+分子 #14: Proteasome subunit beta type-4
-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 |
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試料調製
| 濃度 | 0.1 mg/mL | ||||||||||||
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| 緩衝液 | pH: 7.4 構成要素:
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| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 95 % / チャンバー内温度: 295.15 K / 装置: FEI VITROBOT MARK IV | ||||||||||||
| 詳細 | The sample was homogeneous |
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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: FEI FALCON III (4k x 4k) 検出モード: COUNTING / 実像数: 483 / 平均露光時間: 60.0 sec. / 平均電子線量: 45.7 e/Å2 詳細: 411 images were selected for further analysis, based on their contrast and the recovery of isotropic Thon rings to high resolution. |
| 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 / 倍率(公称値): 95000 |
| 試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について



キーワード
Homo sapiens (ヒト)
データ登録者
英国, 1件
引用
UCSF Chimera


















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解析



