Regulation of capsule gene expression by group A Streptococcus during pharyngeal colonization and invasive infection

Abstract excerpt

Capsular polysaccharide production by group A Streptococcus (GAS) is controlled by transcription of the has operon that encodes the enzymes uniquely required for synthesis of the hyaluronic acid polysaccharide. To investigate the regulation of capsule gene expression during infection, we developed a reporter strain of GAS in which the has operon promoter directed transcription of green fluorescent protein (GFP)....

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