- EMDB-60119: Cryo-EM reveals transition states of the Acinetobacter baumannii ... -
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データベース: EMDB / ID: EMD-60119
タイトル
Cryo-EM reveals transition states of the Acinetobacter baumannii F1-ATPase rotary subunits gamma and epsilon and novel compound targets - Conformation 3
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試料
複合体: Acinetobacter baumannii F1-ATPase recombinant protein with truncation mutation at subunit epsilon CTD, 134-139
ジャーナル: FASEB J / 年: 2024 タイトル: Cryo-EM reveals transition states of the Acinetobacter baumannii F-ATPase rotary subunits γ and ε, unveiling novel compound targets. 著者: Khoa Cong Minh Le / Chui Fann Wong / Volker Müller / Gerhard Grüber / 要旨: Priority 1: critical WHO pathogen Acinetobacter baumannii depends on ATP synthesis and ATP:ADP homeostasis and its bifunctional FF-ATP synthase. While synthesizing ATP, it regulates ATP cleavage by ...Priority 1: critical WHO pathogen Acinetobacter baumannii depends on ATP synthesis and ATP:ADP homeostasis and its bifunctional FF-ATP synthase. While synthesizing ATP, it regulates ATP cleavage by its inhibitory ε subunit to prevent wasteful ATP consumption. We determined cryo-electron microscopy structures of the ATPase active A. baumannii F-αßγε mutant in four distinct conformational states, revealing four transition states and structural transformation of the ε's C-terminal domain, forming the switch of an ATP hydrolysis off- and an ATP synthesis on-state based. These alterations go in concert with altered motions and interactions in the catalytic- and rotary subunits of this engine. These A. baumannii interacting sites provide novel pathogen-specific targets for inhibitors, with the aim of ATP depletion and/or ATP synthesis and growth inhibition. Furthermore, the presented diversity to other bacterial F-ATP synthases extends the view of structural elements regulating such a catalyst.
Chain - Source name: PDB / Chain - Initial model type: experimental model 詳細: The initial model is from the CryoEM structure of AbF1-ATPase Wild Type form.
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プロトコル: FLEXIBLE FIT
得られたモデル
PDB-8zi2: Cryo-EM reveals transition states of the Acinetobacter baumannii F1-ATPase rotary subunits gamma and epsilon and novel compound targets - Conformation 3