+
データを開く
-
基本情報
| 登録情報 | データベース: PDB / ID: 9pf1 | ||||||
|---|---|---|---|---|---|---|---|
| タイトル | Nub1/Fat10-processing human 26S proteasome with Rpt4 at top of spiral staircase (AAA+ motor locally refined) | ||||||
要素 |
| ||||||
キーワード | MOTOR PROTEIN / 26S Proteasome / HYDROLASE-PROTEIN BINDING complex | ||||||
| 機能・相同性 | 機能・相同性情報thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; オメガペプチターゼ / proteasome accessory complex / purine ribonucleoside triphosphate binding / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / proteasome-activating activity ...thyrotropin-releasing hormone receptor binding / nuclear proteasome complex / host-mediated perturbation of viral transcription / positive regulation of inclusion body assembly / 加水分解酵素; プロテアーゼ; ペプチド結合加水分解酵素; オメガペプチターゼ / proteasome accessory complex / purine ribonucleoside triphosphate binding / cytosolic proteasome complex / positive regulation of proteasomal protein catabolic process / proteasome-activating activity / proteasome regulatory particle, lid subcomplex / proteasome regulatory particle, base subcomplex / metal-dependent deubiquitinase activity / protein K63-linked deubiquitination / negative regulation of programmed cell death / Regulation of ornithine decarboxylase (ODC) / Proteasome assembly / Cross-presentation of soluble exogenous antigens (endosomes) / proteasome core complex / Somitogenesis / K63-linked deubiquitinase activity / proteasome binding / transcription factor binding / myofibril / general transcription initiation factor binding / blastocyst development / positive regulation of RNA polymerase II transcription preinitiation complex assembly / protein deubiquitination / immune system process / NF-kappaB binding / endopeptidase activator activity / proteasome core complex, alpha-subunit complex / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / regulation of proteasomal protein catabolic process / ERAD pathway / inclusion body / proteasome complex / TBP-class protein binding / proteolysis involved in protein catabolic process / sarcomere / Regulation of activated PAK-2p34 by proteasome mediated degradation / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / 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 / Vpu mediated degradation of CD4 / Assembly of the pre-replicative complex / Ubiquitin-Mediated Degradation of Phosphorylated Cdc25A / Degradation of DVL / Dectin-1 mediated noncanonical NF-kB signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / negative regulation of inflammatory response to antigenic stimulus / Degradation of AXIN / P-body / Hh mutants are degraded by ERAD / lipopolysaccharide binding / Activation of NF-kappaB in B cells / Degradation of GLI1 by the proteasome / G2/M Checkpoints / Hedgehog ligand biogenesis / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Defective CFTR causes cystic fibrosis / Autodegradation of the E3 ubiquitin ligase COP1 / Negative regulation of NOTCH4 signaling / Regulation of RUNX3 expression and activity / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / 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 / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / MAPK6/MAPK4 signaling / double-strand break repair via homologous recombination / Degradation of beta-catenin by the destruction complex / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / ABC-family proteins mediated transport / double-strand break repair via nonhomologous end joining / 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 / Regulation of expression of SLITs and ROBOs / Metalloprotease DUBs / Regulation of PTEN stability and activity / nuclear matrix / Interleukin-1 signaling / cytoplasmic ribonucleoprotein granule / Orc1 removal from chromatin / metallopeptidase activity / Regulation of RAS by GAPs / Regulation of RUNX2 expression and activity / osteoblast differentiation / The role of GTSE1 in G2/M progression after G2 checkpoint / Separation of Sister Chromatids 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: 3.57 Å | ||||||
データ登録者 | Arkinson, C. / Gee, C.L. / Martin, A. | ||||||
| 資金援助 | 米国, 1件
| ||||||
引用 | ジャーナル: Nat Struct Mol Biol / 年: 2025タイトル: Structural landscape of the degrading 26S proteasome reveals conformation-specific binding of TXNL1. 著者: Connor Arkinson / Christine L Gee / Zeyuan Zhang / Ken C Dong / Andreas Martin / ![]() 要旨: The 26S proteasome targets many cellular proteins for degradation during homeostasis and quality control. Proteasome-interacting cofactors modulate these functions and aid in substrate degradation. ...The 26S proteasome targets many cellular proteins for degradation during homeostasis and quality control. Proteasome-interacting cofactors modulate these functions and aid in substrate degradation. Here we solve high-resolution structures of the redox active cofactor TXNL1 bound to the human 26S proteasome at saturating and substoichiometric concentrations by time-resolved cryo-electron microscopy (cryo-EM). We identify distinct binding modes of TXNL1 that depend on the proteasome conformation and ATPase motor states. Together with biophysical and biochemical experiments, we show that the resting-state proteasome binds TXNL1 with low affinity and in variable positions on top of the Rpn11 deubiquitinase. In contrast, in the actively degrading proteasome, TXNL1 uses additional interactions for high-affinity binding, whereby its C-terminal tail covers the catalytic groove of Rpn11 and coordinates the active-site Zn. Furthermore, these cryo-EM structures of the degrading proteasome capture the ATPase hexamer in several spiral-staircase arrangements that indicate temporally asymmetric hydrolysis and conformational changes in bursts during mechanical substrate unfolding and translocation. Remarkably, we catch the proteasome in the act of unfolding the β-barrel mEos3.2 substrate while the ATPase hexamer is in a particular staircase register. Our findings advance current models for protein translocation through hexameric AAA+ motors and reveal how the proteasome uses its distinct conformational states to coordinate cofactor binding and substrate processing. | ||||||
| 履歴 |
|
-
構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
|---|
-
ダウンロードとリンク
-
ダウンロード
| PDBx/mmCIF形式 | 9pf1.cif.gz | 748.8 KB | 表示 | PDBx/mmCIF形式 |
|---|---|---|---|---|
| PDB形式 | pdb9pf1.ent.gz | 表示 | PDB形式 | |
| PDBx/mmJSON形式 | 9pf1.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
| 文書・要旨 | 9pf1_validation.pdf.gz | 2.3 MB | 表示 | wwPDB検証レポート |
|---|---|---|---|---|
| 文書・詳細版 | 9pf1_full_validation.pdf.gz | 2.4 MB | 表示 | |
| XML形式データ | 9pf1_validation.xml.gz | 132.3 KB | 表示 | |
| CIF形式データ | 9pf1_validation.cif.gz | 199.7 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/pf/9pf1 ftp://data.pdbj.org/pub/pdb/validation_reports/pf/9pf1 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 71584MC ![]() 9e8gC ![]() 9e8hC ![]() 9e8iC ![]() 9e8jC ![]() 9e8kC ![]() 9e8lC ![]() 9e8nC ![]() 9e8oC ![]() 9e8qC ![]() 9pdiC ![]() 9pdlC ![]() 9pdnC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
-
リンク
-
集合体
| 登録構造単位 | ![]()
|
|---|---|
| 1 |
|
-
要素
-26S proteasome regulatory subunit ... , 4種, 4分子 ABDF
| #1: タンパク質 | 分子量: 48700.805 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC2, MSS1 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P35998 |
|---|---|
| #11: タンパク質 | 分子量: 49260.504 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC1 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P62191 |
| #12: タンパク質 | 分子量: 47368.105 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC4, MIP224, TBP7 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P43686 |
| #14: タンパク質 | 分子量: 49266.457 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC3, TBP1 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P17980 |
-26S protease regulatory subunit ... , 2種, 2分子 CE
| #2: タンパク質 | 分子量: 45694.047 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC5, SUG1 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P62195 |
|---|---|
| #13: タンパク質 | 分子量: 44241.008 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMC6, SUG2 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P62333 |
-Proteasome subunit alpha type- ... , 7種, 7分子 GHIJLMK
| #3: タンパク質 | 分子量: 27432.459 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA6, PROS27 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P60900, proteasome endopeptidase complex |
|---|---|
| #4: タンパク質 | 分子量: 25934.486 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA2, HC3, PSC3 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P25787 |
| #5: タンパク質 | 分子量: 29525.842 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA4, HC9, PSC9 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P25789, proteasome endopeptidase complex |
| #6: タンパク質 | 分子量: 27929.891 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA7, HSPC / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O14818 |
| #7: タンパク質 | 分子量: 29595.627 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA1, HC2, NU, PROS30, PSC2 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P25786, proteasome endopeptidase complex |
| #8: タンパク質 | 分子量: 28469.252 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA3, HC8, PSC8 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P25788, proteasome endopeptidase complex |
| #15: タンパク質 | 分子量: 26435.977 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMA5 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P28066 |
-タンパク質 / タンパク質・ペプチド , 2種, 2分子 cv
| #10: タンパク質・ペプチド | 分子量: 1039.273 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: ![]() |
|---|---|
| #9: タンパク質 | 分子量: 46940.898 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PSMD14 / 細胞株 (発現宿主): HEK293 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: O00487 |
-非ポリマー , 4種, 9分子 






| #16: 化合物 | ChemComp-ADP / #17: 化合物 | ChemComp-ZN / | #18: 化合物 | #19: 化合物 | |
|---|
-詳細
| 研究の焦点であるリガンドがあるか | Y |
|---|---|
| Has protein modification | Y |
-実験情報
-実験
| 実験 | 手法: 電子顕微鏡法 |
|---|---|
| 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 |
-
試料調製
| 構成要素 | 名称: Human 26S proteasome complexed with Nub1 and Fat 10 with RPT4 at the top タイプ: COMPLEX / Entity ID: #1-#15 / 由来: MULTIPLE SOURCES |
|---|---|
| 分子量 | 値: 2.6 MDa / 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) / 細胞: HEK293 |
| 緩衝液 | pH: 7.4 詳細: 30 mM HEPES pH7.4, 25 mM NaCl, 25 mM KCl, 3% (v/v) glycerol, 5 mM MgCl2 2 mM ATP and 0.5 mM TCEP |
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: UltrAuFoil R2/2 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 298 K |
-
電子顕微鏡撮影
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
|---|---|
| 顕微鏡 | モデル: TFS 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 / 最大 デフォーカス(公称値): 1700 nm / 最小 デフォーカス(公称値): 500 nm / アライメント法: BASIC |
| 試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
| 撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
-
解析
| EMソフトウェア |
| ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||
| 3次元再構成 | 解像度: 3.57 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 16398 / 対称性のタイプ: POINT |
ムービー
コントローラー
万見について




Homo sapiens (ヒト)
米国, 1件
引用


























PDBj











FIELD EMISSION GUN