Structural highlights
3rqk is a 2 chain structure with sequence from Buffalo rat. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
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| Ligands: | , , , , |
| Related: | 3rqj, 3rqp, 3rql, 3rqm, 3rqn, 3rqo |
| Gene: | Nos1, Bnos (Buffalo rat) |
| Activity: | Nitric-oxide synthase (NADPH dependent), with EC number 1.14.13.39 |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
[NOS1_RAT] Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In the brain and peripheral nervous system, NO displays many properties of a neurotransmitter. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum.
Publication Abstract from PubMed
Inhibitors of neuronal nitric oxide synthase have been proposed as therapeutics for the treatment of different types of neurological disorders. On the basis of a cis-3,4-pyrrolidine scaffold, a series of trans-cyclopropyl- and methyl-containing nNOS inhibitors have been synthesized. The insertion of a rigid electron-withdrawing cyclopropyl ring decreases the basicity of the adjacent amino group, which resulted in decreased inhibitory activity of these inhibitors compared to the parent compound. Nonetheless, three of them exhibited double-digit nanomolar inhibition with high nNOS selectivity on the basis of in vitro enzyme assays. Crystal structures of nNOS and eNOS with these inhibitors bound provide a basis for detailed structure-activity relationship (SAR) studies. The conclusions from these studies will be used as a guide in the future development of selective NOS inhibitors.
Cyclopropyl- and methyl-containing inhibitors of neuronal nitric oxide synthase.,Li H, Xue F, Kraus JM 2nd, Ji H, Labby KJ, Mataka J, Delker SL, Martasek P, Roman LJ, Poulos TL, Silverman RB Bioorg Med Chem. 2013 Mar 1;21(5):1333-43. doi: 10.1016/j.bmc.2012.12.019. Epub, 2012 Dec 22. PMID:23352768[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Li H, Xue F, Kraus JM 2nd, Ji H, Labby KJ, Mataka J, Delker SL, Martasek P, Roman LJ, Poulos TL, Silverman RB. Cyclopropyl- and methyl-containing inhibitors of neuronal nitric oxide synthase. Bioorg Med Chem. 2013 Mar 1;21(5):1333-43. doi: 10.1016/j.bmc.2012.12.019. Epub, 2012 Dec 22. PMID:23352768 doi:http://dx.doi.org/10.1016/j.bmc.2012.12.019
