TABLE 1.

Effects of csrR mutation on expression of GBS virulence factors and immunogenic surface proteins

Product or function	Gene	Expression in CsrR mutant(s)
Virulence factors
Hemolysin/cytolysin	cylE	Increased
C5a peptidase	scpB	Increased
CAMP factor	cfb	Reduced
Laminin binding protein	lmb	No significant change
Capsular polysaccharide	cpsE	No significant change
Immunogenic surface proteins
Protein Rib (strain 2603)	rib	Slightly increased
Alpha-like protein 1 (strain 515)	alp1	Slightly increased
Protein Sip	sip	No significant change