TABLE 3.

Dehalogenating activities of a crude extract prepared from citrate-grown cells with various substrates

Substrate	Sp act (mU/mg)a
1,2-Dichloroethane	<10
1,2-Dibromoethane	696
1-Chloropropane	48
1-Bromopropane	57
1,2-Dichloropropane	<10
1,2-Dibromopropane	189
1,3-Dichloropropane	119
1,3-Dibromopropane	154
1-Bromo-3-chloropropane	233
1,2,3-Trichloropropane	10
1-Chlorobutane	79
1-Bromobutane	44
1-Chlorohexaneb	88
1-Chlorononaneb	28
1-Bromononaneb	42
1-Bromodecaneb	38

^aHalide production at 30°C with different substrates (5 mM) was determined at pH 8.2. 

^bAssays were performed with substrate at a concentration of 3 mM.