Justin W McCool

University of Chicago, Chicago, Illinois, United States

Are you Justin W McCool?

Claim your profile

Publications (1)4.42 Total impact

  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The Gram-positive pathogen Bacillus anthracis grows in characteristic chains of individual, rod-shaped cells. Here, we report the cell-separating activity of BslO, a putative N-acetylglucosaminidase bearing three N-terminal S-layer homology (SLH) domains for association with the secondary cell wall polysaccharide (SCWP). Mutants with an insertional lesion in the bslO gene exhibit exaggerated chain lengths, although individual cell dimensions are unchanged. Purified BslO complements this phenotype in trans, effectively dispersing chains of bslO-deficient bacilli without lysis and localizing to the septa of vegetative cells. Compared with the extremely long chain lengths of csaB bacilli, which are incapable of binding proteins with SLH-domains to SCWP, bslO mutants demonstrate a chaining phenotype that is intermediate between wild-type and csaB. Computational simulation suggests that BslO effects a non-random distribution of B. anthracis chain lengths, implying that all septa are not equal candidates for separation.
    Preview · Article · Jul 2011 · Molecular Microbiology

Publication Stats

14 Citations
4.42 Total Impact Points

Top Journals


  • 2011
    • University of Chicago
      • Department of Microbiology
      Chicago, Illinois, United States