mreD
168
MreD is a cell shape determining protein, it couples the cytosolic MreB and MreB-like proteins to the extracellular peptidoglycan-synthesizing machinery, part of the Rod complex for lateral cell wall synthesis and control of cell diameter
Locus
BSU_28010
Molecular weight
19.67 kDa
Isoelectric point
7.91
Function
cell shape determation
Product
cell shape-determining protein
Essential
yes
Synonyms
mreD, rodB
Outlinks
Genomic Context
Categories containing this gene/protein
List of homologs in different organisms, belongs to COG2891 (Galperin et al., 2021)
This gene is a member of the following regulons
Gene
Coordinates
2,859,317 2,859,835
Phenotypes of a mutant
the phenotype of mreD is similar to that of ''mreC
mreD is essential under normal conditions PubMed
Depletion of MreD leads to a progressive increase in the width and a decrease in the length of the cell and cells become lytic. In the depletion strain, lysis can be prevented and cell growth, but not cell shape, can be recovered by inculaion of Magnesium in the media. This shape defect is consistent with a role for mreD in cell wall synthesis during elongation and has a similar phenotype to other genes with roles in elongation.
The protein
Catalyzed reaction/ biological activity
None/ structural
Protein family
mreD family (single member, according to UniProt)
Structure
Expression and Regulation
Operons
Description
Regulation
constitutively expressed PubMed
Regulatory mechanism
Sigma factors
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Description
Regulation
constitutively expressed PubMed
Regulatory mechanism
Sigma factors
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Biological materials
Mutant
A conditional mutant with an inframe deletion of mreD complemented by a xylose inducible copy at an ectopic locus (strain named 4352) is avaliable from the Errington Group.
GFP fusion
A functional N-terminal GFP fusion has been made where the fusion protein is the only copy of the gene in the cell: strain 3416 PubMed.
Labs working on this gene/protein
Peter Graumann, Freiburg University, Germany homepage
References
Reviews
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Original Publications
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Localization
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Time of last update: 2025-04-05 09:41:50
Author of last update: Jstuelk