TABLE 3.

Mutants found from the random PCR mutagenesis screen

Domain	Mutation	Phenotypea
DNA binding domain HTH-3	F55C	LB
	I62N	LB
	I71F	LB
DNA-binding domain HTH-4	S117T	W
	S117N	W
	S119L	W
	T120K	W
	R123H	W
Other	Q11R	LB
	W12R/A38T	LB
	K33T	LB
	V30I/T139I	LB

^aLB, light blue; W, white.