Mutations in pneumococcal cpsE generated via in vitro serial passaging reveal a potential mechanism of reduced encapsulation utilized by a conjunctival isolate.

@article{Shainheit2015MutationsIP,
  title={Mutations in pneumococcal cpsE generated via in vitro serial passaging reveal a potential mechanism of reduced encapsulation utilized by a conjunctival isolate.},
  author={Mara G. Shainheit and Michael D. Valentino and Michael S. Gilmore and Andrew Camilli},
  journal={Journal of bacteriology},
  year={2015},
  volume={197 10},
  pages={1781-91}
}
UNLABELLED The polysaccharide capsule of Streptococcus pneumoniae is required for nasopharyngeal colonization and for invasive disease in the lungs, blood, and meninges. In contrast, the vast majority of conjunctival isolates are acapsular. The first serotype-specific gene in the capsule operon, cpsE, encodes the initiating glycosyltransferase and is one of the few serotype-specific genes that can tolerate null mutations. This report characterizes a spontaneously arising TIGR4 mutant exhibiting… CONTINUE READING
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