Atomic Structures of Anthrax Prechannel Bound with Full-Length Lethal and Edema Factors.
Atomic Structures of Anthrax Prechannel Bound with Full-Length Lethal and Edema Factors.
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DOI:
10.1016/j.str.2020.05.009
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发表时间:
2020-08-04
期刊:
影响因子:
--
通讯作者:
Zhou ZH
中科院分区:
文献类型:
--
作者:
Zhou K;Liu S;Hardenbrook NJ;Cui Y;Krantz BA;Zhou ZH
Pathogenesis of anthrax disease involves two cytotoxic enzymes—edema factor (EF) and lethal factor (LF)—which are individually recruited by the protective antigen heptamer (PA7) or octamer (PA8) prechannel and subsequently translocated across channels formed on the endosomal membrane upon exposure to low pH. Here, we report the atomic structures of PA8 prechannel-bound full-length EF and LF. In this pre-translocation state, the N-terminal segment of both factors refolds into an α helix engaged in the α clamp of the prechannel. Recruitment to the PA prechannel exposes an originally buried β strand of both toxins and enables domain organization of EF. Many interactions occur on domain interfaces in both PA prechannel-bound EF and LF, leading to toxin compaction prior to translocation. Our results provide key insights into the molecular mechanisms of translocation-coupled protein unfolding and translocation.
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影响因子:
64.8
作者:
Ho CM;Beck JR;Lai M;Cui Y;Goldberg DE;Egea PF;Zhou ZH
通讯作者:
Zhou ZH
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
64.8
作者:
Drum, CL;Yan, SZ;Tang, WJ
通讯作者:
Tang, WJ
DOI:
10.1107/s0907444909052925
发表时间:
2010-02
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Adams PD;Afonine PV;Bunkóczi G;Chen VB;Davis IW;Echols N;Headd JJ;Hung LW;Kapral GJ;Grosse-Kunstleve RW;McCoy AJ;Moriarty NW;Oeffner R;Read RJ;Richardson DC;Richardson JS;Terwilliger TC;Zwart PH
通讯作者:
Zwart PH
影响因子:
2.2
作者:
Chen, Shaoxia;McMullan, Greg;Faruqi, Abdul R.;Murshudov, Garib N.;Short, Judith M.;Scheres, Sjors H. W.;Henderson, Richard
通讯作者:
Henderson, Richard