1.2.1.31	2-mercaptoethanol	10 mM, activates	
1.2.1.31	ATP	-	
1.2.1.31	ATP	presence of ATP required	
1.2.1.31	dithiothreitol	10 mM, activates	
1.2.1.31	L-cysteine	10 mM, activates