Disruption of the gene encoding penicillin-binding protein 2b (pbp2b) causes altered cell morphology and cease in exopolysaccharide production in Streptococcus thermophilus Sfi6.

Abstract excerpt

Genetic and biochemical analysis of exopolysaccharide (EPS) production in lactic acid bacteria has been a growing field of interest in the food industry. We previously identified and characterized a gene cluster composed of 13 genes (epsA to epsM) responsible for EPS production in Streptococcus thermophilus Sfi6. Here we report one further gene, pbp2b, that is connected to EPS production. Mutants with a gene...

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