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基本情報
登録情報 | データベース: PDB / ID: 9b80 | |||||||||||||||||||||
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タイトル | Human endogenous FASN with 1,3-DBP - Class 1 focused modifying wing | |||||||||||||||||||||
![]() | Fatty acid synthase | |||||||||||||||||||||
![]() | BIOSYNTHETIC PROTEIN / De novo fatty acid synthesis Fatty acid synthase | |||||||||||||||||||||
機能・相同性 | ![]() fatty-acid synthase system / ether lipid biosynthetic process / Vitamin B5 (pantothenate) metabolism / neutrophil differentiation / fatty-acyl-CoA biosynthetic process / enoyl-[acyl-carrier-protein] reductase (NADPH, Re-specific) / glandular epithelial cell development / establishment of endothelial intestinal barrier / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity ...fatty-acid synthase system / ether lipid biosynthetic process / Vitamin B5 (pantothenate) metabolism / neutrophil differentiation / fatty-acyl-CoA biosynthetic process / enoyl-[acyl-carrier-protein] reductase (NADPH, Re-specific) / glandular epithelial cell development / establishment of endothelial intestinal barrier / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity / glycogen granule / Fatty acyl-CoA biosynthesis / oleoyl-[acyl-carrier-protein] hydrolase / fatty acyl-[ACP] hydrolase activity / modulation by host of viral process / ChREBP activates metabolic gene expression / [acyl-carrier-protein] S-malonyltransferase / 3-hydroxyacyl-[acyl-carrier-protein] dehydratase / enoyl-[acyl-carrier-protein] reductase (NADPH) activity / [acyl-carrier-protein] S-malonyltransferase activity / beta-ketoacyl-[acyl-carrier-protein] synthase I / (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity / NR1H2 & NR1H3 regulate gene expression linked to lipogenesis / mammary gland development / 3-oxoacyl-[acyl-carrier-protein] reductase / 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity / fatty acid synthase activity / monocyte differentiation / phosphopantetheine binding / 3-oxoacyl-[acyl-carrier-protein] synthase activity / cellular response to interleukin-4 / Activation of gene expression by SREBF (SREBP) / fatty acid metabolic process / fatty acid biosynthetic process / osteoblast differentiation / melanosome / cadherin binding / inflammatory response / Golgi apparatus / RNA binding / extracellular exosome / membrane / plasma 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: 2.7 Å | |||||||||||||||||||||
![]() | Choi, W. / Li, C. / Chen, Y. / Wang, Y. / Cheng, Y. | |||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural dynamics of human fatty acid synthase in the condensing cycle. 著者: Wooyoung Choi / Chengmin Li / Yifei Chen / YongQiang Wang / Yifan Cheng / ![]() 要旨: Long-chain fatty acids are the building blocks of fat in human bodies. In mammals, fatty acid synthase (FASN) contains multiple enzymatic domains to catalyse all chemical reactions needed for de novo ...Long-chain fatty acids are the building blocks of fat in human bodies. In mammals, fatty acid synthase (FASN) contains multiple enzymatic domains to catalyse all chemical reactions needed for de novo fatty acid synthesis. Although the chemical reactions carried out by these enzymatic domains are well defined, how the dimeric FASN with an open architecture continuously catalyses such reactions to synthesize a complete fatty acid remains elusive. Here, using a strategy of tagging and purifying endogenous FASN in HEK293T cells for single-particle cryo-electron microscopy studies, we characterized the structural dynamics of endogenous human FASN. We captured conformational snapshots of various functional substates in the condensing cycle and developed a procedure to analyse the particle distribution landscape of FASN with different orientations between its condensing and modifying wings. Together, our findings reveal that FASN function does not require a large rotational motion between its two main functional domains during the condensing cycle, and that the catalytic reactions in the condensing cycle carried out by the two monomers are unsynchronized. Our data thus provide a new composite view of FASN dynamics during the fatty acid synthesis condensing cycle. | |||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 398 KB | 表示 | ![]() |
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PDB形式 | ![]() | 299.4 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
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 | ![]() 44330MC ![]() 9b7zC ![]() 9mj9C C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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: 181078.312 Da / 分子数: 2 / 由来タイプ: 天然 / 由来: (天然) ![]() 参照: UniProt: P49327, fatty-acid synthase system, [acyl-carrier-protein] S-acetyltransferase, [acyl-carrier-protein] S-malonyltransferase, beta-ketoacyl-[acyl-carrier-protein] synthase I, 3- ...参照: UniProt: P49327, fatty-acid synthase system, [acyl-carrier-protein] S-acetyltransferase, [acyl-carrier-protein] S-malonyltransferase, beta-ketoacyl-[acyl-carrier-protein] synthase I, 3-oxoacyl-[acyl-carrier-protein] reductase, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADPH, Re-specific), oleoyl-[acyl-carrier-protein] hydrolase 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: Human endogenous FASN with 1,3-DBP / タイプ: COMPLEX / Entity ID: all / 由来: NATURAL |
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由来(天然) | 生物種: ![]() |
緩衝液 | pH: 8 |
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: TFS 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): 1500 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 45.8 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 448162 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 最高解像度: 2.7 Å 立体化学のターゲット値: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS) | ||||||||||||||||||||||||
拘束条件 |
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