Exploring the Binding Conformations of Bulkier Dipeptide Amide Inhibitors in Constitutive Nitric Oxide Synthases.
Li, H., Flinspach, M.L., Igarashi, J., Jamal, J., Yang, W., Litzinger, E.A., Huang, H., Erdal, E.P., Silverman, R.B., Poulos, T.L.(2005) Biochemistry 44: 15222-15229
- PubMed: 16285725 
- DOI: 10.1021/bi0513610
- Primary Citation of Related Structures:  
1ZZQ, 1ZZR, 1ZZS, 1ZZT, 1ZZU - PubMed Abstract: 
A series of L-nitroarginine-based dipeptide inhibitors are highly selective for neuronal nitric oxide synthase (nNOS) over the endothelial isoform (eNOS). Crystal structures of these dipeptides bound to both isoforms revealed two different conformations, curled in nNOS and extended in eNOS, corresponding to higher and lower binding affinity to the two isoforms, respectively ...