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基本情報
登録情報 | データベース: PDB / ID: 8k0f | |||||||||
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タイトル | Human collagen prolyl processing enzyme complex, P3H1/CRTAP/PPIB heterotrimer, in its apo state | |||||||||
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![]() | CYTOSOLIC PROTEIN / complex / hydroxylase / collagen / ER protein | |||||||||
機能・相同性 | ![]() procollagen-proline 3-dioxygenase / procollagen-proline 3-dioxygenase activity / protein hydroxylation / negative regulation of post-translational protein modification / endoplasmic reticulum chaperone complex / positive regulation by host of viral genome replication / Collagen biosynthesis and modifying enzymes / collagen metabolic process / positive regulation by host of viral process / positive regulation of multicellular organism growth ...procollagen-proline 3-dioxygenase / procollagen-proline 3-dioxygenase activity / protein hydroxylation / negative regulation of post-translational protein modification / endoplasmic reticulum chaperone complex / positive regulation by host of viral genome replication / Collagen biosynthesis and modifying enzymes / collagen metabolic process / positive regulation by host of viral process / positive regulation of multicellular organism growth / collagen fibril organization / L-ascorbic acid binding / RNA polymerase binding / protein peptidyl-prolyl isomerization / cyclosporin A binding / regulation of protein secretion / smooth endoplasmic reticulum / : / neutrophil chemotaxis / peptidyl-prolyl cis-trans isomerase activity / RNA polymerase II CTD heptapeptide repeat P3 isomerase activity / RNA polymerase II CTD heptapeptide repeat P6 isomerase activity / peptidylprolyl isomerase / bone development / positive regulation of neuron projection development / SARS-CoV-1 activates/modulates innate immune responses / unfolded protein binding / melanosome / protein folding / spermatogenesis / protein stabilization / iron ion binding / endoplasmic reticulum lumen / negative regulation of cell population proliferation / focal adhesion / intracellular membrane-bounded organelle / perinuclear region of cytoplasm / endoplasmic reticulum / protein-containing complex / extracellular space / RNA binding / extracellular exosome / nucleoplasm / nucleus / membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
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: 3.37 Å | |||||||||
![]() | Li, W. / Peng, J. / Yao, D. / Rao, B. / Xia, Y. / Wang, Q. / Li, S. / Cao, M. / Shen, Y. / Ma, P. ...Li, W. / Peng, J. / Yao, D. / Rao, B. / Xia, Y. / Wang, Q. / Li, S. / Cao, M. / Shen, Y. / Ma, P. / Liao, R. / Qin, A. / Zhao, J. / Cao, Y. | |||||||||
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![]() | ![]() タイトル: The structural basis for the collagen processing by human P3H1/CRTAP/PPIB ternary complex. 著者: Wenguo Li / Junjiang Peng / Deqiang Yao / Bing Rao / Ying Xia / Qian Wang / Shaobai Li / Mi Cao / Yafeng Shen / Peixiang Ma / Rijing Liao / An Qin / Jie Zhao / Yu Cao / ![]() 要旨: Collagen posttranslational processing is crucial for its proper assembly and function. Disruption of collagen processing leads to tissue development and structure disorders like osteogenesis ...Collagen posttranslational processing is crucial for its proper assembly and function. Disruption of collagen processing leads to tissue development and structure disorders like osteogenesis imperfecta (OI). OI-related collagen processing machinery includes prolyl 3-hydroxylase 1 (P3H1), peptidyl-prolyl cis-trans isomerase B (PPIB), and cartilage-associated protein (CRTAP), with their structural organization and mechanism unclear. We determine cryo-EM structures of the P3H1/CRTAP/PPIB complex. The active sites of P3H1 and PPIB form a face-to-face bifunctional reaction center, indicating a coupled modification mechanism. The structure of the P3H1/CRTAP/PPIB/collagen peptide complex reveals multiple binding sites, suggesting a substrate interacting zone. Unexpectedly, a dual-ternary complex is observed, and the balance between ternary and dual-ternary states can be altered by mutations in the P3H1/PPIB active site and the addition of PPIB inhibitors. These findings provide insights into the structural basis of collagen processing by P3H1/CRTAP/PPIB and the molecular pathology of collagen-related disorders. | |||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 255.7 KB | 表示 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 36763MC ![]() 8k0eC ![]() 8k0iC ![]() 8k0mC ![]() 8k17C ![]() 8kc9C 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 ![]() |
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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: 83485.727 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||||||
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#2: タンパク質 | 分子量: 50749.184 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||||||
#3: タンパク質 | 分子量: 28669.605 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() | ||||||
#4: 糖 | ChemComp-NAG / #5: 化合物 | ChemComp-FE / | 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 |
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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: A protein modification ternary complex / タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2600 nm / 最小 デフォーカス(公称値): 1500 nm |
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) |
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解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487: / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.37 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 1047611 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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