1.18.6.2	62500	-	gel filtration, iron-subunit	744258	
1.18.6.2	210000	-	gel filtration	744257	
1.18.6.2	227300	-	dynamic light scattering, heterotetramer NifD2K2	745388	
1.18.6.2	235300	-	dynamic light scattering, VnfD2K2G2 heterohexamer	745388