Escherichia coli	-	393068, 658212	
Escherichia coli B	-	393068	
Saccharomyces cerevisiae	two enzyme forms	393070	
Escherichia coli K-12	-	393071	
Escherichia coli K-12 2276	-	393071	
Escherichia coli	isozyme Mem-R,S-Msr, bifunctional enzyme	658212	
Absidia repens	-	764712	
Absidia repens NRRL 1336	-	764712	
Coniochaeta sp.	-	764712	
Coprinellus micaceus	-	764712