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基本情報
登録情報 | データベース: PDB / ID: 7xmd | |||||||||
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タイトル | Cryo-EM structure of Cytochrome bo3 from Escherichia coli, the structure complexed with an allosteric inhibitor N4 | |||||||||
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![]() | OXIDOREDUCTASE / respiratory enzyme / membrane protein / heme protein / allosteric inhibitor | |||||||||
機能・相同性 | ![]() oxidoreduction-driven active transmembrane transporter activity / cytochrome o ubiquinol oxidase complex / ubiquinol oxidase (H+-transporting) / cytochrome bo3 ubiquinol oxidase activity / aerobic electron transport chain / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / cytochrome-c oxidase activity / ubiquinone binding / electron transport coupled proton transport / proton transmembrane transporter activity ...oxidoreduction-driven active transmembrane transporter activity / cytochrome o ubiquinol oxidase complex / ubiquinol oxidase (H+-transporting) / cytochrome bo3 ubiquinol oxidase activity / aerobic electron transport chain / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / cytochrome-c oxidase activity / ubiquinone binding / electron transport coupled proton transport / proton transmembrane transporter activity / ATP synthesis coupled electron transport / aerobic respiration / respiratory electron transport chain / electron transfer activity / copper ion binding / heme binding / plasma membrane 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: 2.99 Å | |||||||||
![]() | Nishida, Y. / Shigematsu, H. / Iwamoto, T. / Takashima, S. / Shintani, Y. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Identifying antibiotics based on structural differences in the conserved allostery from mitochondrial heme-copper oxidases. 著者: Yuya Nishida / Sachiko Yanagisawa / Rikuri Morita / Hideki Shigematsu / Kyoko Shinzawa-Itoh / Hitomi Yuki / Satoshi Ogasawara / Ken Shimuta / Takashi Iwamoto / Chisa Nakabayashi / Waka ...著者: Yuya Nishida / Sachiko Yanagisawa / Rikuri Morita / Hideki Shigematsu / Kyoko Shinzawa-Itoh / Hitomi Yuki / Satoshi Ogasawara / Ken Shimuta / Takashi Iwamoto / Chisa Nakabayashi / Waka Matsumura / Hisakazu Kato / Chai Gopalasingam / Takemasa Nagao / Tasneem Qaqorh / Yusuke Takahashi / Satoru Yamazaki / Katsumasa Kamiya / Ryuhei Harada / Nobuhiro Mizuno / Hideyuki Takahashi / Yukihiro Akeda / Makoto Ohnishi / Yoshikazu Ishii / Takashi Kumasaka / Takeshi Murata / Kazumasa Muramoto / Takehiko Tosha / Yoshitsugu Shiro / Teruki Honma / Yasuteru Shigeta / Minoru Kubo / Seiji Takashima / Yasunori Shintani / ![]() 要旨: Antimicrobial resistance (AMR) is a global health problem. Despite the enormous efforts made in the last decade, threats from some species, including drug-resistant Neisseria gonorrhoeae, continue to ...Antimicrobial resistance (AMR) is a global health problem. Despite the enormous efforts made in the last decade, threats from some species, including drug-resistant Neisseria gonorrhoeae, continue to rise and would become untreatable. The development of antibiotics with a different mechanism of action is seriously required. Here, we identified an allosteric inhibitory site buried inside eukaryotic mitochondrial heme-copper oxidases (HCOs), the essential respiratory enzymes for life. The steric conformation around the binding pocket of HCOs is highly conserved among bacteria and eukaryotes, yet the latter has an extra helix. This structural difference in the conserved allostery enabled us to rationally identify bacterial HCO-specific inhibitors: an antibiotic compound against ceftriaxone-resistant Neisseria gonorrhoeae. Molecular dynamics combined with resonance Raman spectroscopy and stopped-flow spectroscopy revealed an allosteric obstruction in the substrate accessing channel as a mechanism of inhibition. Our approach opens fresh avenues in modulating protein functions and broadens our options to overcome AMR. | |||||||||
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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 | ![]() | 229.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 178.2 KB | 表示 | ![]() |
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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
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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
-Cytochrome bo(3) ubiquinol oxidase subunit ... , 3種, 3分子 ACD
#1: タンパク質 | 分子量: 74424.469 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() 参照: UniProt: P0ABI8, ubiquinol oxidase (H+-transporting) |
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#3: タンパク質 | 分子量: 22642.566 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
#4: タンパク質 | 分子量: 12037.402 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
-タンパク質 , 1種, 1分子 B
#2: タンパク質 | 分子量: 36209.559 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 遺伝子: cyoA, ACU57_11830, AM464_19145, APX88_10780, AWP93_14560, BANRA_03634, BEA19_24285, BJI68_14080, BJJ90_20095, BK383_14750, BMC79_002872, BO068_001687, BOB65_000403, BON66_08870, BON73_ ...遺伝子: cyoA, ACU57_11830, AM464_19145, APX88_10780, AWP93_14560, BANRA_03634, BEA19_24285, BJI68_14080, BJJ90_20095, BK383_14750, BMC79_002872, BO068_001687, BOB65_000403, BON66_08870, BON73_06180, BON74_21890, BON77_14335, BON80_10695, BON86_25900, BON87_05825, BON89_00395, BON92_15695, BON93_19065, BON98_18690, BSR05_07160, BXT93_14110, BZL69_16590, C2121_000756, C5N07_12950, CA593_00980, CDC27_01080, CDL36_18475, CDL37_08970, CQP61_20675, CR539_06390, CT143_00345, CXJ73_004380, D0X26_07630, D3822_17775, D3Y67_14555, D9E34_22950, D9J03_07430, DAH17_06675, DAH34_12595, DAH36_12985, DD762_23785, DKP82_19825, DN627_04300, DNQ45_18500, DNX30_04955, DTM16_23740, DTM45_11185, DU321_07410, DXT70_02705, E2119_01520, E2122_05970, E2131_02675, E2135_01205, E4K51_12275, E5P26_04320, E5P27_05630, E5P28_11110, E5P29_09785, E5P31_06375, E5P32_04100, E5P34_04850, E5P35_04720, E5P36_01955, E5P40_03855, E5S36_14935, E5S46_14035, E5S51_13330, E5S58_14090, E5S61_17450, EC3234A_4c01010, EI021_16450, EIA08_09775, EIZ93_01035, EL79_3413, EL80_3367, ELT17_06040, ELT20_08135, ELT41_07160, ELT49_07745, ELT51_19775, ELU85_09175, ELV10_08020, ELV16_21785, ELX48_13290, ELX76_14920, ELX85_08605, EVY14_00280, ExPECSC038_03272, EYV17_02895, EYV18_09930, EYY21_23390, F2N31_13445, F3N40_15010, F9S83_01735, F9V24_00335, FA849_16035, FA868_02450, FE587_05330, FEJ01_04230, FEL34_02865, FGG80_03370, FGY90_08715, FHD44_10295, FJQ51_12155, FQF29_11475, FTV93_12140, FV293_05915, FWK02_10070, G3813_001713, G4A38_05615, G5603_08425, GIB53_01940, GKF86_04705, GKF89_04260, GLW94_08520, GQM13_16545, GQW68_14795, GQW80_03945, GRW05_22945, GRW57_14390, GRW81_04315, GSY44_02240, GTP88_03650, GUB08_11340, H0O53_01600, HIN64_001359, HJQ60_002319, HJS37_002124, HJU54_001612, HL601_03105, HLZ50_08430, HMJ82_07910, HMU48_15410, HMV41_13070, HMV95_11775, HNC36_06575, HNC59_10400, HNC66_06810, HNC99_09295, HND12_08495, HVW04_08795, HVX16_19275, HX136_19320, IA00_004007, IH772_12955, IT029_003268, J0541_001708, JNP96_06590, NCTC10082_01037, NCTC10764_05312, NCTC10974_04302, NCTC11112_03815, NCTC12950_04133, NCTC13148_06650, NCTC8008_03342, NCTC8450_01418, NCTC8500_04220, NCTC8621_03944, NCTC9037_03917, NCTC9044_03552, NCTC9117_04753, PGD_02879, SAMEA3472067_03229, SAMEA3751407_02102, WP2S18E08_34950 発現宿主: ![]() ![]() |
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-非ポリマー , 6種, 7分子 










#5: 化合物 | ChemComp-HEO / | ||||
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#6: 化合物 | ChemComp-HEM / | ||||
#7: 化合物 | ChemComp-CU / | ||||
#8: 化合物 | #9: 化合物 | ChemComp-JYR / | #10: 化合物 | ChemComp-UNX / | |
-詳細
研究の焦点であるリガンドがあるか | 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: Cytochrome bo3 ubiquinol oxidase / タイプ: COMPLEX / Entity ID: #2-#4 / 由来: RECOMBINANT | ||||||||||||||||||||||||||||||
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分子量 | 値: 0.144 MDa / 実験値: NO | ||||||||||||||||||||||||||||||
由来(天然) | 生物種: ![]() ![]() | ||||||||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | ||||||||||||||||||||||||||||||
緩衝液 | pH: 7.2 | ||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 13 mg/ml / 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 / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 281 K |
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電子顕微鏡撮影
顕微鏡 | モデル: TFS GLACIOS |
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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): 2000 nm / 最小 デフォーカス(公称値): 500 nm |
試料ホルダ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 50 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 7173 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.99 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 67692 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT | ||||||||||||||||||||||||
拘束条件 |
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