1.2.1.B25	Ca2+	activates, inhibitory as it causes precipitation of the acyl-CoA substrate at 5 mM	
1.2.1.B25	K+	activates about 10fold	
1.2.1.B25	Mg2+	best activating divalent cation	
1.2.1.B25	Mn2+	activates, inhibitory as it causes precipitation of the acyl-CoA substrate at 2 mM	
1.2.1.B25	additional information	ACR requires divalent metal ions for activity. 2-mercaptoethanol and Na+ have no effect on activity