1.1.99.38	Iron	BtrNcontains a [4Fe-4S] cluster that delivers an electron to SAM, inducing its cleavage to the common intermediate in radical SAM reactions, the 5'-deoxyadenosyl 5'-radical. BtrN contains an additional [4Fe-4S] cluster, thought to bind in contact with the substrate to facilitate loss of the second electron in the two-electron oxidation	718869	
1.1.99.38	Iron	close interaction of both S-adenosyl-L-methionine and 2-deoxy-scyllo-inosamine with the [4Fe-4S] cluster	685280