1.14.13.208	Fe	BoxA is a homodimeric 46 kDa iron-sulfur-flavoprotein, which acts as reductase. BoxB is a monomeric iron-protein. Subunit BoxB contains 1.6 mol of iron per mol of protein, addition of 1 mM Fe2+ to the assays has no stimulatory or inhibitory effect on the catalytic turnover	700258	
1.14.13.208	Fe	the reductase componment BoxA contains 10.4 to 18.4 mol of Fe, and 13.3 to 17.9 mol of acid-labile sulfur per mol of native protein, depending on the method of protein determination	651677	
1.14.13.208	Fe2+	a non-heme diiron enzyme	745167	
1.14.13.208	Fe2+	a non-heme diiron enzyme. The two iron ions are bridged by a glutamate (Glu150). The first Fe2+ is ligated by a glutamate (Glu120) and a histidine (His153), while the second Fe2+ is ligated by an aspartate (Asp211), a glutamate (Glu240) and a histidine (His243)	744692	
1.14.13.208	Fe2+	BoxB contains a diiron center	733379	
1.14.13.208	Fe2+	contains iron	712441	
1.14.13.208	Fe2+	contains two irons per BoxB monomer	734168