1.3.98.3	Fe	contains 4 irons per polypeptide	685280	
1.3.98.3	Fe2+	a heme containing enzyme, HemN contains a [4Fe-4S] cluster	724235	
1.3.98.3	Fe2+	HemN binds a (4Fe-4S) cluster	672473	
1.3.98.3	Fe2+	HemN contains a catalytically essential [4Fe-4S] cluster that transfers an electron to bound S-adenosyl-L-methionine, thereby producing methionine and a 5'-deoxyadenosyl radical	711348	
1.3.98.3	Fe2+	HemN is a radical S-adenosyl-L-methionine and [4Fe-4S] containing enzyme	726009	
1.3.98.3	Fe2+	[4Fe-4S] cluster	711084	
1.3.98.3	Fe2+	[4Fe-4S]1+ cluster and [3Fe-4S]1+ cluster	712016