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基本情報
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タイトル | Cryo-EM structure of Saccharomyces cerevisiae bc1 complex in pyraclostrobin-bound state | |||||||||
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![]() | Complex / mitochondria / ELECTRON TRANSPORT / MEMBRANE PROTEIN | |||||||||
機能・相同性 | ![]() : / Respiratory electron transport / mitochondrial respiratory chain complex III assembly / cellular respiration / respiratory chain complex III / quinol-cytochrome-c reductase / quinol-cytochrome-c reductase activity / mitochondrial electron transport, ubiquinol to cytochrome c / proton transmembrane transport / aerobic respiration ...: / Respiratory electron transport / mitochondrial respiratory chain complex III assembly / cellular respiration / respiratory chain complex III / quinol-cytochrome-c reductase / quinol-cytochrome-c reductase activity / mitochondrial electron transport, ubiquinol to cytochrome c / proton transmembrane transport / aerobic respiration / electron transfer activity / mitochondrial inner membrane / heme binding / mitochondrion / metal ion binding 類似検索 - 分子機能 | |||||||||
生物種 | ![]() ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.42 Å | |||||||||
![]() | Ye Y / Li ZW / Yang GF | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Cryo-EM Structures Reveal the Unique Binding Modes of Metyltetraprole in Yeast and Porcine Cytochrome Complex Enabling Rational Design of Inhibitors. 著者: Yu-Xia Wang / Ying Ye / Zhi-Wen Li / Guang-Rui Cui / Xing-Xing Shi / Ying Dong / Jia-Jia Jiang / Jia-Yue Sun / Ze-Wei Guan / Nan Zhang / Qiong-You Wu / Fan Wang / Xiao-Lei Zhu / Guang-Fu Yang / ![]() 要旨: Cytochrome (complex III) represents a significant target for the discovery of both drugs and fungicides. Metyltetraprole (MET) is commonly classified as a quinone site inhibitor (QI) that combats ...Cytochrome (complex III) represents a significant target for the discovery of both drugs and fungicides. Metyltetraprole (MET) is commonly classified as a quinone site inhibitor (QI) that combats the G143A mutated isolate, which confers high resistance to strobilurin fungicides such as pyraclostrobin (PYR). The binding mode and antiresistance mechanism of MET remain unclear. Here, we determined the high-resolution structures of inhibitor-bound complex III (MET, 2.52 Å; PYR, 2.42 Å) and inhibitor-bound porcine complex III (MET, 2.53 Å; PYR, 2,37 Å) by cryo-electron microscopy. The distinct binding modes of MET and PYR were observed for the first time. Notably, the MET exhibited different binding modes in the two species. In , the binding site of MET was the same as PYR, serving as a -type inhibitor of the Q site. However, in porcine, MET acted as a dual-target inhibitor of both Q and Q. Based on the structural insights, a novel inhibitor (YF23694) was discovered and demonstrated excellent fungicidal activity against downy mildew and powdery mildew fungi. This work provides a new starting point for the design of the next generation of inhibitors to overcome the resistance. | |||||||||
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マップデータ | ![]() | 78.9 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 28.1 KB 28.1 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 9.2 KB | 表示 | ![]() |
画像 | ![]() | 123.9 KB | ||
Filedesc metadata | ![]() | 8.2 KB | ||
その他 | ![]() ![]() | 77.7 MB 77.7 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 904.2 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 903.8 KB | 表示 | |
XML形式データ | ![]() | 17.6 KB | 表示 | |
CIF形式データ | ![]() | 22.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
EMDBのページ | ![]() ![]() |
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「今月の分子」の関連する項目 |
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マップ
ファイル | ![]() | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 0.96 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
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試料の構成要素
+全体 : Saccharomyces cerevisiae bc1 complex
+超分子 #1: Saccharomyces cerevisiae bc1 complex
+分子 #1: COR1 isoform 1
+分子 #2: Cytochrome b
+分子 #3: Cytochrome b-c1 complex subunit 2, mitochondrial
+分子 #4: quinol--cytochrome-c reductase
+分子 #5: Cytochrome b-c1 complex subunit Rieske, mitochondrial
+分子 #6: QCR6 isoform 1
+分子 #7: Cytochrome b-c1 complex subunit 7
+分子 #8: Cytochrome b-c1 complex subunit 8
+分子 #9: Cytochrome b-c1 complex subunit 9, mitochondrial
+分子 #10: Cytochrome b-c1 complex subunit 10, mitochondrial
+分子 #11: (1R)-2-(phosphonooxy)-1-[(tridecanoyloxy)methyl]ethyl pentadecanoate
+分子 #12: (1R)-2-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-1-[(heptanoy...
+分子 #13: PROTOPORPHYRIN IX CONTAINING FE
+分子 #14: (2R)-3-{[(S)-(2-aminoethoxy)(hydroxy)phosphoryl]oxy}-2-(tetradeca...
+分子 #15: (5S,11R)-5,8,11-trihydroxy-5,11-dioxido-17-oxo-4,6,10,12,16-penta...
+分子 #16: 5-(3,7,11,15,19,23-HEXAMETHYL-TETRACOSA-2,6,10,14,18,22-HEXAENYL)...
+分子 #17: methyl ~{N}-[2-[[1-(4-chlorophenyl)pyrazol-3-yl]oxymethyl]phenyl]...
+分子 #18: (1R)-2-(dodecanoyloxy)-1-[(phosphonooxy)methyl]ethyl tetradecanoate
+分子 #19: (2R,5S,11R,14R)-5,8,11-trihydroxy-2-(nonanoyloxy)-5,11-dioxido-16...
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
濃度 | 0.5 mg/mL |
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緩衝液 | pH: 7.4 / 詳細: PBS,0.1%DDM |
グリッド | モデル: Quantifoil R1.2/1.3 / 支持フィルム - 材質: GRAPHENE OXIDE |
凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 実像数: 1693 / 平均電子線量: 49.04 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.5 µm / 最小 デフォーカス(公称値): 1.2 µm |
試料ステージ | ホルダー冷却材: NITROGEN |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |