Interactions Screenings Unearth Potential New Divisome Components in the Chlamydia-Related Bacterium, Waddlia chondrophila.

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Version: Final published version
License: CC BY 4.0
Serval ID
serval:BIB_7D196437BE35
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Interactions Screenings Unearth Potential New Divisome Components in the Chlamydia-Related Bacterium, Waddlia chondrophila.
Journal
Microorganisms
Author(s)
Bayramova F., Jacquier N., Greub G.
ISSN
2076-2607 (Print)
ISSN-L
2076-2607
Publication state
Published
Issued date
26/11/2019
Peer-reviewed
Oui
Volume
7
Number
12
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Chlamydiales order members are obligate intracellular bacteria, dividing by binary fission. However, Chlamydiales lack the otherwise conserved homologue of the bacterial division organizer FtsZ and certain division protein homologues. FtsZ might be functionally replaced in Chlamydiales by the actin homologue MreB. RodZ, the membrane anchor of MreB, localizes early at the division septum. In order to better characterize the organization of the chlamydial divisome, we performed co-immunoprecipitations and yeast-two hybrid assays to study the interactome of RodZ, using Waddlia chondrophila, a potentially pathogenic Chlamydia-related bacterium, as a model organism. Three potential interactors were further investigated: SecA, FtsH, and SufD. The gene and protein expression profiles of these three genes were measured and are comparable with recently described division proteins. Moreover, SecA, FtsH, and SufD all showed a peripheral localization, consistent with putative inner membrane localization and interaction with RodZ. Notably, heterologous overexpression of the abovementioned proteins could not complement E. coli mutants, indicating that these proteins might play different functions in these two bacteria or that important regulators are not conserved. Altogether, this study brings new insights to the composition of the chlamydial divisome and points to links between protein secretion, degradation, iron homeostasis, and chlamydial division.
Keywords
Chlamydia-related bacteria, Chlamydiales, MreB, RodZ, Waddlia chondrophila, cell division, cell wall, peptidoglycan
Pubmed
Web of science
Open Access
Yes
Create date
04/12/2019 23:47
Last modification date
12/01/2022 8:11
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