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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: 9llk | ||||||||||||||||||||||||
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| タイトル | The cryo-EM structure of the heterododecameric human Derlin-1/p97 complex | ||||||||||||||||||||||||
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キーワード | MEMBRANE PROTEIN / ERAD | ||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報Derlin-1-VIMP complex / signal recognition particle binding / endoplasmic reticulum quality control compartment / flavin adenine dinucleotide catabolic process / VCP-NSFL1C complex / endoplasmic reticulum stress-induced pre-emptive quality control / endosome to lysosome transport via multivesicular body sorting pathway / BAT3 complex binding / cytoplasmic ubiquitin ligase complex / cellular response to arsenite ion ...Derlin-1-VIMP complex / signal recognition particle binding / endoplasmic reticulum quality control compartment / flavin adenine dinucleotide catabolic process / VCP-NSFL1C complex / endoplasmic reticulum stress-induced pre-emptive quality control / endosome to lysosome transport via multivesicular body sorting pathway / BAT3 complex binding / cytoplasmic ubiquitin ligase complex / cellular response to arsenite ion / protein-DNA covalent cross-linking repair / Derlin-1 retrotranslocation complex / positive regulation of protein K63-linked deubiquitination / deubiquitinase activator activity / cytoplasm protein quality control / positive regulation of oxidative phosphorylation / aggresome assembly / ubiquitin-modified protein reader activity / regulation of protein localization to chromatin / cellular response to misfolded protein / mitotic spindle disassembly / VCP-NPL4-UFD1 AAA ATPase complex / positive regulation of mitochondrial membrane potential / vesicle-fusing ATPase / K48-linked polyubiquitin modification-dependent protein binding / NAD+ metabolic process / regulation of aerobic respiration / retrograde protein transport, ER to cytosol / stress granule disassembly / ATPase complex / ubiquitin-specific protease binding / regulation of synapse organization / ciliary transition zone / positive regulation of ATP biosynthetic process / ubiquitin-like protein ligase binding / intracellular membrane-bounded organelle / RHOH GTPase cycle / MHC class I protein binding / polyubiquitin modification-dependent protein binding / autophagosome maturation / response to unfolded protein / endoplasmic reticulum to Golgi vesicle-mediated transport / negative regulation of hippo signaling / HSF1 activation / interstrand cross-link repair / ATP metabolic process / translesion synthesis / Attachment and Entry / Protein methylation / endoplasmic reticulum unfolded protein response / ERAD pathway / negative regulation of protein localization to chromatin / proteasomal protein catabolic process / lipid droplet / ciliary tip / proteasome complex / viral genome replication / positive regulation of protein ubiquitination / Josephin domain DUBs / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / macroautophagy / negative regulation of smoothened signaling pathway / establishment of protein localization / positive regulation of protein-containing complex assembly / Hh mutants are degraded by ERAD / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Translesion Synthesis by POLH / ADP binding / positive regulation of non-canonical NF-kappaB signal transduction / ABC-family protein mediated transport / protein destabilization / autophagy / cytoplasmic stress granule / Aggrephagy / positive regulation of protein catabolic process / azurophil granule lumen / Ovarian tumor domain proteases / KEAP1-NFE2L2 pathway / late endosome / positive regulation of canonical Wnt signaling pathway / double-strand break repair / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / E3 ubiquitin ligases ubiquitinate target proteins / cellular response to heat / site of double-strand break / ATPase binding / Neddylation / signaling receptor activity / protease binding / secretory granule lumen / protein phosphatase binding / regulation of apoptotic process / ficolin-1-rich granule lumen / ubiquitin-dependent protein catabolic process / proteasome-mediated ubiquitin-dependent protein catabolic process / Attachment and Entry / early endosome / ciliary basal body / protein ubiquitination 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: 3.55 Å | ||||||||||||||||||||||||
データ登録者 | Cao, Y. / Wang, Q. / Yao, D. / Rao, B. / Xia, Y. / Li, W. / Li, S. / Shen, Y. | ||||||||||||||||||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Commun Biol / 年: 2025タイトル: Cryo-EM structure of the human Derlin-1/p97 complex reveals a hexameric channel in ERAD. 著者: Qian Wang / Deqiang Yao / Bing Rao / Ying Xia / Wenguo Li / Shaobai Li / Mi Cao / Yafeng Shen / An Qin / Yu Cao / ![]() 要旨: The ER-associated degradation (ERAD) pathway retrotranslocates misfolded proteins from the ER lumen to the cytoplasm for proteasomal degradation. Derlin-1 and p97 are central to this process, forming ...The ER-associated degradation (ERAD) pathway retrotranslocates misfolded proteins from the ER lumen to the cytoplasm for proteasomal degradation. Derlin-1 and p97 are central to this process, forming a canonical 4:6 complex with tetrameric Derlin-1. Using cryo-electron microscopy, we identify a novel human Derlin-1/p97 complex with a 6:6 stoichiometry, where hexameric Derlin-1 assembles as three dimers. This hexameric channel forms a significantly larger trans-ER membrane tunnel, potentially accommodating bulkier substrates. Structural comparisons revealed conformational flexibility in Derlin-1, suggesting the "U"-shaped tetramer may act as an intermediate in hexamer formation. The formation of this hexameric channel is mediated by interactions with p97 and appears dependent on p97's ATPase activity, which provides the driving force for the transition between the tetrameric channel conformation to the intermediate "U"-shaped conformation. These findings highlight the dynamic nature of the Derlin-1/p97 complex and its implications for understanding ERAD retrotranslocation. | ||||||||||||||||||||||||
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構造の表示
| 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 | 9llk.cif.gz | 994.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb9llk.ent.gz | 828.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 9llk.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/ll/9llk ftp://data.pdbj.org/pub/pdb/validation_reports/ll/9llk | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 63205MC 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 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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
| #1: タンパク質 | 分子量: 87546.711 Da / 分子数: 6 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: VCP, HEL-220, HEL-S-70 / 細胞株 (発現宿主): Sf9発現宿主: ![]() 参照: UniProt: P55072, vesicle-fusing ATPase #2: タンパク質 | 分子量: 26478.100 Da / 分子数: 6 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: DERL1, DER1, UNQ243/PRO276発現宿主: ![]() 参照: UniProt: Q9BUN8 #3: 化合物 | ChemComp-ADP / 研究の焦点であるリガンドがあるか | Y | 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: The cryogenic electron-microscopic structure of the heterododecameric human Derlin-1/p97 complex タイプ: COMPLEX / Entity ID: #1-#2 / 由来: RECOMBINANT |
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| 分子量 | 値: 0.73 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: ![]() |
| 緩衝液 | pH: 7.5 |
| 試料 | 濃度: 15 mg/ml / 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: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281.15 K |
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電子顕微鏡撮影
| 実験機器 | ![]() モデル: Talos Arctica / 画像提供: FEI Company |
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| 顕微鏡 | モデル: FEI TALOS ARCTICA |
| 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 / 倍率(公称値): 81000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 1500 nm / アライメント法: COMA FREE |
| 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 | 平均露光時間: 2.9 sec. / 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
| 電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 15 eV |
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解析
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 対称性 | 点対称性: C3 (3回回転対称) |
| 3次元再構成 | 解像度: 3.55 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 129127 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT |
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万見について




Homo sapiens (ヒト)
中国, 1件
引用

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