Peptidoglycan degradation machinery in Clostridium difficile forespore engulfment.
Peptidoglycan degradation machinery in Clostridium difficile forespore engulfment.
复制标题
DOI:
10.1111/mmi.14091
复制
发表时间:
2018-11
影响因子:
3.6
通讯作者:
Salgado PS
中科院分区:
文献类型:
--
作者:
Dembek M;Kelly A;Barwinska-Sendra A;Tarrant E;Stanley WA;Vollmer D;Biboy J;Gray J;Vollmer W;Salgado PS
Clostridium difficile remains the leading cause of antibiotic‐associated diarrhoea in hospitals worldwide, linked to significant morbidity and mortality. As a strict anaerobe, it produces dormant cell forms – spores – which allow it to survive in the aerobic environment. Importantly, spores are the transmission agent of C. difficile infections. A key aspect of sporulation is the engulfment of the future spore by the mother cell and several proteins have been proposed to be involved. Here, we investigated the role of the SpoIID, SpoIIM and SpoIIP (DMP) machinery and its interplay with the SpoIIQ:SpoIIIAH (Q:AH) complex in C. difficile. We show that, surprisingly, SpoIIM, the proposed machinery anchor, is not required for efficient engulfment and sporulation. We demonstrate the requirement of DP for engulfment due to their sequential peptidoglycan degradation activity, both in vitro and in vivo. Finally, new interactions within DMP and between DMP and Q:AH suggest that both systems form a single engulfment machinery to keep the mother cell and forespore membranes together throughout engulfment. This work sheds new light upon the engulfment process and on how different sporeformers might use the same components in different ways to drive spore formation.
登录
查看更多内容
影响因子:
88.1
作者:
McKenney, Peter T.;Driks, Adam;Eichenberger, Patrick
通讯作者:
Eichenberger, Patrick
影响因子:
4.8
作者:
Fagan, Robert P.;Fairweather, Neil F.
通讯作者:
Fairweather, Neil F.
影响因子:
3.1
作者:
Deakin, Laura J.;Clare, Simon;Lawley, Trevor D.
通讯作者:
Lawley, Trevor D.
影响因子:
9.9
作者:
通讯作者:
--
影响因子:
6.4
作者:
Dembek M;Barquist L;Boinett CJ;Cain AK;Mayho M;Lawley TD;Fairweather NF;Fagan RP
通讯作者:
Fagan RP