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基本情報
登録情報 | データベース: PDB / ID: 7bc4 | |||||||||||||||||||||||||||||||||||||||
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タイトル | Cryo-EM structure of fatty acid synthase (FAS) from Pichia pastoris | |||||||||||||||||||||||||||||||||||||||
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![]() | BIOSYNTHETIC PROTEIN / Multienzyme / Complex / Fatty acid / Synthase | |||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() mitotic nuclear membrane biogenesis / palmitic acid biosynthetic process / fatty-acyl-CoA synthase system / fatty acid synthase complex / fatty-acyl-CoA synthase activity / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity / holo-[acyl-carrier-protein] synthase activity / oleoyl-[acyl-carrier-protein] hydrolase / fatty acyl-[ACP] hydrolase activity ...mitotic nuclear membrane biogenesis / palmitic acid biosynthetic process / fatty-acyl-CoA synthase system / fatty acid synthase complex / fatty-acyl-CoA synthase activity / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity / holo-[acyl-carrier-protein] synthase activity / oleoyl-[acyl-carrier-protein] hydrolase / fatty acyl-[ACP] hydrolase activity / [acyl-carrier-protein] S-malonyltransferase / 3-hydroxyacyl-[acyl-carrier-protein] dehydratase / [acyl-carrier-protein] S-malonyltransferase activity / beta-ketoacyl-[acyl-carrier-protein] synthase I / (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity / 3-oxoacyl-[acyl-carrier-protein] reductase / 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity / enoyl-[acyl-carrier-protein] reductase (NADH) / enoyl-[acyl-carrier-protein] reductase (NADH) activity / fatty acid synthase activity / 3-oxoacyl-[acyl-carrier-protein] synthase activity / fatty acid biosynthetic process / magnesium ion binding 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: 3.1 Å | |||||||||||||||||||||||||||||||||||||||
![]() | Snowden, J.S. / Alzahrani, J. / Sherry, L. / Stacey, M. / Rowlands, D.J. / Ranson, N.A. / Stonehouse, N.J. | |||||||||||||||||||||||||||||||||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Structural insight into Pichia pastoris fatty acid synthase. 著者: Joseph S Snowden / Jehad Alzahrani / Lee Sherry / Martin Stacey / David J Rowlands / Neil A Ranson / Nicola J Stonehouse / ![]() 要旨: Type I fatty acid synthases (FASs) are critical metabolic enzymes which are common targets for bioengineering in the production of biofuels and other products. Serendipitously, we identified FAS as a ...Type I fatty acid synthases (FASs) are critical metabolic enzymes which are common targets for bioengineering in the production of biofuels and other products. Serendipitously, we identified FAS as a contaminant in a cryoEM dataset of virus-like particles (VLPs) purified from P. pastoris, an important model organism and common expression system used in protein production. From these data, we determined the structure of P. pastoris FAS to 3.1 Å resolution. While the overall organisation of the complex was typical of type I FASs, we identified several differences in both structural and enzymatic domains through comparison with the prototypical yeast FAS from S. cerevisiae. Using focussed classification, we were also able to resolve and model the mobile acyl-carrier protein (ACP) domain, which is key for function. Ultimately, the structure reported here will be a useful resource for further efforts to engineer yeast FAS for synthesis of alternate products. | |||||||||||||||||||||||||||||||||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 621.4 KB | 表示 | ![]() |
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PDB形式 | ![]() | 500.3 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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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
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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: 206375.734 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() 株: GS115 / ATCC 20864 参照: UniProt: C4QY10, fatty-acyl-CoA synthase system, 3-oxoacyl-[acyl-carrier-protein] reductase, beta-ketoacyl-[acyl-carrier-protein] synthase I |
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#2: タンパク質 | 分子量: 230000.625 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) ![]() 株: GS115 / ATCC 20864 参照: UniProt: C4QVT8, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S-acetyltransferase, ...参照: UniProt: C4QVT8, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S-acetyltransferase, [acyl-carrier-protein] S-malonyltransferase, oleoyl-[acyl-carrier-protein] hydrolase |
#3: 化合物 | ChemComp-FMN / |
研究の焦点であるリガンドがあるか | N |
Has protein modification | N |
-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: Fatty acid synthase / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: NATURAL |
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分子量 | 値: 2.6 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
緩衝液 | pH: 7.4 / 詳細: PBS |
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: COPPER |
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 80 % / 凍結前の試料温度: 281 K |
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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): 3000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 60.1 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 実像数: 3643 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||
対称性 | 点対称性: D3 (2回x3回 2面回転対称) | ||||||||||||||||||||
3次元再構成 | 解像度: 3.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 37054 / 対称性のタイプ: POINT |