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基本情報
登録情報 | データベース: PDB / ID: 8qwb | ||||||
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タイトル | Crystal structure of citrate synthase from Methylophaga sulfidovorans | ||||||
![]() | Citrate synthase | ||||||
![]() | TRANSFERASE / Citrate Synthase | ||||||
機能・相同性 | ![]() | ||||||
生物種 | ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Mais, C.-N. / Bange, G. / Sendker, F.L. / Hochberg, G. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Frequent transitions in self-assembly across the evolution of a central metabolic enzyme. 著者: Franziska L Sendker / Tabea Schlotthauer / Christopher-Nils Mais / Yat Kei Lo / Mathias Girbig / Stefan Bohn / Thomas Heimerl / Daniel Schindler / Arielle Weinstein / Brain P Metzger / Joseph ...著者: Franziska L Sendker / Tabea Schlotthauer / Christopher-Nils Mais / Yat Kei Lo / Mathias Girbig / Stefan Bohn / Thomas Heimerl / Daniel Schindler / Arielle Weinstein / Brain P Metzger / Joseph W Thornton / Arvind Pillai / Gert Bange / Jan M Schuller / Georg K A Hochberg / ![]() ![]() 要旨: Many enzymes assemble into homomeric protein complexes comprising multiple copies of one protein. Because structural form is usually assumed to follow function in biochemistry, these assemblies are ...Many enzymes assemble into homomeric protein complexes comprising multiple copies of one protein. Because structural form is usually assumed to follow function in biochemistry, these assemblies are thought to evolve because they provide some functional advantage. In many cases, however, no specific advantage is known and, in some cases, quaternary structure varies among orthologs. This has led to the proposition that self-assembly may instead vary neutrally within protein families. The extent of such variation has been difficult to ascertain because quaternary structure has until recently been difficult to measure on large scales. Here, we employ mass photometry, phylogenetics, and structural biology to interrogate the evolution of homo-oligomeric assembly across the entire phylogeny of prokaryotic citrate synthases - an enzyme with a highly conserved function. We discover a menagerie of different assembly types that come and go over the course of evolution, including cases of parallel evolution and reversions from complex to simple assemblies. Functional experiments in vitro and in vivo indicate that evolutionary transitions between different assemblies do not strongly influence enzyme catalysis. Our work suggests that enzymes can wander relatively freely through a large space of possible assemblies and demonstrates the power of characterizing structure-function relationships across entire phylogenies. | ||||||
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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 | ![]() | 1.4 MB | 表示 | ![]() |
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PDB形式 | ![]() | 1.2 MB | 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 | ![]() 8qzpC 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
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単位格子 |
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要素
#1: タンパク質 | 分子量: 44767.852 Da / 分子数: 12 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: SAMN04488079_11738 / 発現宿主: ![]() ![]() |
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-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 3.34 Å3/Da / 溶媒含有率: 63.16 % |
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結晶化 | 温度: 293 K / 手法: 蒸気拡散法, シッティングドロップ法 詳細: 1.0 M Lithium chloride, 0.1 M Citric Acid pH 5.0, 10% PEG 6000, 5mM oxaloacetic acid |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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放射光源 | 由来: ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
検出器 | タイプ: DECTRIS EIGER X 16M / 検出器: PIXEL / 日付: 2020年8月29日 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
放射波長 | 波長: 0.97625 Å / 相対比: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
反射 | 解像度: 3.2→48.31 Å / Num. obs: 636593 / % possible obs: 98.9 % / 冗長度: 6.9 % / CC1/2: 0.998 / Rmerge(I) obs: 0.131 / Rrim(I) all: 0.142 / Net I/σ(I): 10.29 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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解析
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精密化 | 構造決定の手法: ![]()
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精密化ステップ | サイクル: LAST / 解像度: 3.201→48.31 Å
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