Purification and characterization of Escherichia coli MreB protein Journal Article


Authors: Nurse, P.; Marians, K. J.
Article Title: Purification and characterization of Escherichia coli MreB protein
Abstract: The actin homolog MreB is required in rod-shaped bacteria for maintenance of cell shape and is intimately connected to the holoenzyme that synthesizes the peptidoglycan layer. The protein has been reported variously to exist in helical loops under the cell surface, to rotate, and to move in patches in both directions around the cell surface. Studies of the Escherichia coli protein in vitro have been hampered by its tendency to aggregate. Here we report the purification and characterization of native E. coli MreB. The protein requires ATP hydrolysis for polymerization, forms bundles with a left-hand twist that can be as long as 4 μm, forms sheets in the presence of calcium, and has a critical concentration for polymerization of 1.5 μm. © 2013 by The American Society for Biochemistry and Molecular Biology, Inc.
Journal Title: Journal of Biological Chemistry
Volume: 288
Issue: 5
ISSN: 0021-9258
Publisher: American Society for Biochemistry and Molecular Biology  
Date Published: 2013-02-01
Start Page: 3469
End Page: 3475
Language: English
DOI: 10.1074/jbc.M112.413708
PROVIDER: scopus
PMCID: PMC3561565
PUBMED: 23235161
DOI/URL:
Notes: --- - "Export Date: 1 March 2013" - "CODEN: JBCHA" - "Source: Scopus"
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  1. Kenneth Marians
    138 Marians
  2. Pearl Nurse
    12 Nurse