MreBH

• Description: cell shape-determining protein, forms filaments, the polymers control/restrict the mobility of the cell wall elongation enzyme comple
  
  

Gene name	mreBH
Synonyms
Essential	no
Product	cell shape-determining protein
Function	cell shape determation
Interactions involving this protein in SubtInteract: MreBH
MW, pI	35 kDa, 5.239
Gene length, protein length	1005 bp, 335 aa
Immediate neighbours	ykpC, abh
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

cell shape, heat shock proteins, membrane proteins

This gene is a member of the following regulons

SigI regulon

The gene

Basic information

• Locus tag: BSU14470

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:
  • forms ring-shaped filaments in a heterologous system PubMed

• Protein family: ftsA/mreB family (according to Swiss-Prot)

• Paralogous protein(s): MreB, Mbl

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • part of the cell wall biosynthetic complex PubMed
  • MreBH-LytE PubMed
  • MreBH-Mbl PubMed
  • MreB-MreBH PubMed

• Localization:
  • during logarithmic growth, MreBH forms discrete patches thst move processively along peripheral tracks perpendicular to the cell axis PubMed
  • forms transverse bands as cells enter the stationary phase PubMed
  • close to the inner surface of the cytoplasmic membrane PubMed
  • reports on helical structures formed by MreBH PubMed seem to be misinterpretation of data PubMed
  • normal localization depends on the presence of glucolipids, MreB forms irregular clusters in an ugtP mutant PubMed

Database entries

• Structure:

• UniProt: P39763

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor: SigI PubMed

• Regulation:
  • induced by heat (SigI) PubMed
  • expression is increased in an ugtP mutant PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Peter Graumann, Freiburg University, Germany homepage

References

Other original publications

Felix Dempwolff, Christian Reimold, Michael Reth, Peter L Graumann
Bacillus subtilis MreB orthologs self-organize into filamentous structures underneath the cell membrane in a heterologous cell system.
PLoS One: 2011, 6(11);e27035
[PubMed:22069484] [WorldCat.org] [DOI] (I p)

Hervé Joël Defeu Soufo, Peter L Graumann
Bacillus subtilis MreB paralogues have different filament architectures and lead to shape remodelling of a heterologous cell system.
Mol Microbiol: 2010, 78(5);1145-58
[PubMed:21091501] [WorldCat.org] [DOI] (I p)

Yoshikazu Kawai, Kei Asai, Jeffery Errington
Partial functional redundancy of MreB isoforms, MreB, Mbl and MreBH, in cell morphogenesis of Bacillus subtilis.
Mol Microbiol: 2009, 73(4);719-31
[PubMed:19659933] [WorldCat.org] [DOI] (I p)

Kathrin Schirner, Jeff Errington
Influence of heterologous MreB proteins on cell morphology of Bacillus subtilis.
Microbiology (Reading): 2009, 155(Pt 11);3611-3621
[PubMed:19643765] [WorldCat.org] [DOI] (I p)

Chi-Ling Tseng, Gwo-Chyuan Shaw
Genetic evidence for the actin homolog gene mreBH and the bacitracin resistance gene bcrC as targets of the alternative sigma factor SigI of Bacillus subtilis.
J Bacteriol: 2008, 190(5);1561-7
[PubMed:18156261] [WorldCat.org] [DOI] (I p)

Rut Carballido-López, Alex Formstone, Ying Li, S Dusko Ehrlich, Philippe Noirot, Jeff Errington
Actin homolog MreBH governs cell morphogenesis by localization of the cell wall hydrolase LytE.
Dev Cell: 2006, 11(3);399-409
[PubMed:16950129] [WorldCat.org] [DOI] (P p)