TABLE 3.

Catechol pathway enzyme activities of cell extracts of two strains growing on 1.5 mM 3CBA^a

Genotype	Enzyme	Substrate	Activity (μmol/mg of protein · min−1)	% Activity
WV-4b	Catechol dioxygenase	Catechol	300	100
		3-Chlorocatechol	49	16
		4-Chlorocatechol	192	64
		3,5-Dichlorocatechol	191	78
		3-Methylcatechol	220	232
		4-Methylcatechol	697	100
	Muconate cycloisomerase	Muconate	181	100
		2-Chloromuconate	11	6
		3-Chloromuconate	37	21
PM-1c	Catechol dioxygenase	Catechol	352	100
		3-Chlorocatechol	5	2
		4-Chlorocatechol	91	26
		3,5-Dichlorocatechol	2	0.6
		3-Methylcatechol	104	30
		4-Methylcatechol	245	70
	Muconate cycloisomerase	Muconate	142	100
		2-Chloromuconate	2	17
		3-Chloromuconate	51	352

^aSee text for details. 

^bStrain WV-7-301. 

^cStrain PM-P-301.