1.8.2.1	?	x * 62000 + x * 70000 + x * 74000, SDS-PAGE	-, 394088	
1.8.2.1	?	x * 72000, SDS-PAGE	765785	
1.8.2.1	dimer	1 * 40600 + 1 * 8800, SDS-PAGE	658970	
1.8.2.1	dimer	2 * 52000, wild type enzyme, sedimentation equilibrium analysis	667714	
1.8.2.1	dimer	alphabeta	658705	
1.8.2.1	heterodimer	-	667744, 694023	
1.8.2.1	heterodimer	2 * 40600 + 2 * 8800	394087	
1.8.2.1	heterodimer	heterodimeric complex of the catalytic molybdopterin subunit and a c-type cytochrome subunit	669353	
1.8.2.1	homodimer	-	743146	
1.8.2.1	homodimer	2 * 40000, SDS-PAGE	694036	
1.8.2.1	monomer	-	694036	
1.8.2.1	monomer	1 * 40000, SDS-PAGE	394079	
1.8.2.1	monomer	1 * 42000, SDS-PAGE, 1 * 43770, MALDI-TOF	724587	
1.8.2.1	monomer	1 * 44000, SDS-PAGE	394072	
1.8.2.1	monomer	1 * 52000, mutant G473D, calculation from amino acid sequence	667714	
1.8.2.1	monomer	1 * 53500, mutant G473D, gel filtration and sedimentation equilibrium analysis	667714	
1.8.2.1	monomer	1 * 54500, mutant G473W, sedimentation equilibrium analysis	667714	
1.8.2.1	monomer	1 * 66600, double mutant R212A/G473D, sedimentation equilibrium analysis	667714	
1.8.2.1	tetramer	2 * 43897 + 2 * 38815, the 43897 Da subunit contains the 455 Da molybdenum cofactor, the 38815 Da subunit consists of a polypeptide and two covalently bound hemes, electrospray ionization mass spectrometry	-, 394084	
1.8.2.1	tetramer	alpha2beta2, 2 * 47000 + 2 * 50000, SDS-PAGE	-, 394084