+
データを開く
-
基本情報
登録情報 | データベース: EMDB / ID: EMD-4860 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Human 20S-PA200 Proteasome Complex | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
![]() | proteasome / PA200 / activator / HYDROLASE | |||||||||
機能・相同性 | ![]() spermatoproteasome complex / sperm DNA condensation / peptidase activator activity / purine ribonucleoside triphosphate binding / regulation of endopeptidase activity / proteasome core complex / Regulation of ornithine decarboxylase (ODC) / 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 / proteasome core complex / Regulation of ornithine decarboxylase (ODC) / 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 / response to organonitrogen compound / sarcomere / proteasome complex / Regulation of activated PAK-2p34 by proteasome mediated degradation / ciliary basal body / Autodegradation of Cdh1 by Cdh1:APC/C / proteolysis involved in protein catabolic process / APC/C:Cdc20 mediated degradation of Securin / Asymmetric localization of PCP proteins / SCF-beta-TrCP mediated degradation of Emi1 / AUF1 (hnRNP D0) binds and destabilizes mRNA / NIK-->noncanonical NF-kB signaling / Ubiquitin-dependent degradation of Cyclin D / TNFR2 non-canonical NF-kB pathway / Assembly of the pre-replicative complex / Vpu mediated degradation of CD4 / Degradation of DVL / 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 / Degradation of AXIN / Degradation of GLI1 by the proteasome / Activation of NF-kappaB in B cells / Defective CFTR causes cystic fibrosis / Hedgehog ligand biogenesis / 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 / 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 / P-body / MAPK6/MAPK4 signaling / lysine-acetylated histone binding / 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 / nuclear matrix / FCERI mediated NF-kB activation / 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 / UCH proteinases / The role of GTSE1 in G2/M progression after G2 checkpoint / KEAP1-NFE2L2 pathway / Antigen processing: Ubiquitination & Proteasome degradation / Downstream TCR signaling / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Neddylation / peptidase activity / positive regulation of NF-kappaB transcription factor activity / ER-Phagosome pathway / regulation of inflammatory response / postsynapse / proteasome-mediated ubiquitin-dependent protein catabolic process / secretory granule lumen / endopeptidase activity / ficolin-1-rich granule lumen / response to oxidative stress / 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 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.0 Å | |||||||||
![]() | Toste Rego A / da Fonseca PCA | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() 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 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | EMマップ: ![]() ![]() ![]() |
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 | ![]() | 675.4 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 36.8 KB 36.8 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 19.2 KB | 表示 | ![]() |
画像 | ![]() | 98.2 KB | ||
Filedesc metadata | ![]() | 10.2 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 688.4 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 688 KB | 表示 | |
XML形式データ | ![]() | 17.4 KB | 表示 | |
CIF形式データ | ![]() | 24.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
EMDBのページ | ![]() ![]() |
---|---|
「今月の分子」の関連する項目 |
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ボクセルのサイズ | X=Y=Z: 0.81 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 : Human 20S-PA200 Proteasome complex
+超分子 #1: Human 20S-PA200 Proteasome complex
+超分子 #2: 20S Proteasome
+超分子 #3: PA200 activator
+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
+分子 #15: Proteasome activator complex subunit 4
+分子 #16: INOSITOL HEXAKISPHOSPHATE
+分子 #17: [(1~{S},2~{R},3~{R},4~{S},5~{S},6~{R})-2-[oxidanyl(phosphonooxy)p...
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | particle |
-
試料調製
濃度 | 0.1 mg/mL | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
緩衝液 | pH: 7.4 構成要素:
| ||||||||||||
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: CONTINUOUS / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 30 sec. / 前処理 - 雰囲気: AIR | ||||||||||||
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 |
-
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: FEI FALCON III (4k x 4k) 検出モード: COUNTING / 実像数: 717 / 平均露光時間: 60.0 sec. / 平均電子線量: 45.7 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
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 |
+
画像解析
-原子モデル構築 1
初期モデル | PDB ID: Chain - Source name: PDB / Chain - Initial model type: experimental model |
---|---|
詳細 | The model of the human recombinant 20S proteasome was built based on PDB: 5LE5 using real-space refinement in Coot and Phenix |
精密化 | 空間: REAL / プロトコル: FLEXIBLE FIT |
得られたモデル | ![]() PDB-6rey: |
-原子モデル構築 2
詳細 | the model for the human PA200 derived from Phyre2 and I-Tasser. These PA200 models were used as initial guides for the assignment of secondary structure using real-space refinement in Coot and Phenix, followed by correction of the sequence register using the amino acid side chain densities clearly resolved in our cryo-EM map. Connecting loops and all other regions were built ab initio from the cryo-EM density. |
---|---|
精密化 | プロトコル: AB INITIO MODEL |
得られたモデル | ![]() PDB-6rey: |