Peptidoglycan maturation controls spatiotemporal organisation of outer membrane proteins in Escherichia coli
Peptidoglycan maturation controls spatiotemporal organisation of outer membrane proteins in Escherichia coli
复制标题
肽聚糖成熟控制大肠杆菌外膜蛋白的时空组织
DOI:
10.1101/2022.04.11.487844
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Mamou G
中科院分区:
文献类型:
--
作者:
Mamou G
Linkages between the outer membrane of Gram-negative bacteria and the peptidoglycan layer are crucial to the maintenance of cellular integrity and enable survival in challenging environments–. The functionality of the outer membrane relies on outer membrane proteins (OMPs), which are inserted by the β-barrel assembly machine, BAM,. Previous work has shown that growingEscherichia colicells segregate old OMPs towards the poles by an unknown mechanism. Here, we demonstrate that peptidoglycan underpins the spatiotemporal organisation of OMPs. Mature, tetrapeptide-rich peptidoglycan binds to BAM components and suppresses OMP foldase activity. Nascent peptidoglycan, which is enriched in pentapeptides and concentrated at septa, associates with BAM poorly and has little impact on its activity, leading to preferential insertion of OMPs at division sites. Synchronising OMP biogenesis to cell wall growth enables bacteria to replenish their OMPs by binary partitioning. Our study reveals that Gram-negative bacteria coordinate the assembly of two major cell envelope layers by rendering OMP biogenesis responsive to peptidoglycan maturation. This coordination offers new possibilities for the design of antibiotics that disrupt cell envelope integrity.
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影响因子:
--
作者:
Gang Li;S. Peter Howard
通讯作者:
S. Peter Howard
影响因子:
0.8
作者:
K. Peters;M. Pazos;M. VanNieuwenhze;W. Vollmer
通讯作者:
W. Vollmer
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
5.6
作者:
A. Ryter;Y. Hirota;U. Schwarz
通讯作者:
U. Schwarz
影响因子:
5.4
作者:
Tomasek D;Kahne D
通讯作者:
Kahne D