Structural characterization of nitric oxide synthase isoforms reveals striking active-site conservation.
Fischmann, T.O., Hruza, A., Niu, X.D., Fossetta, J.D., Lunn, C.A., Dolphin, E., Prongay, A.J., Reichert, P., Lundell, D.J., Narula, S.K., Weber, P.C.(1999) Nat Struct Biol 6: 233-242
- PubMed: 10074942 
- DOI: 10.1038/6675
- Primary Citation of Related Structures:  
3NOS, 4NOS - PubMed Abstract: 
Crystal structures of human endothelial nitric oxide synthase (eNOS) and human inducible NOS (iNOS) catalytic domains were solved in complex with the arginine substrate and an inhibitor S-ethylisothiourea (SEITU), respectively. The small molecules bind in a narrow cleft within the larger active-site cavity containing heme and tetrahydrobiopterin ...