CATH Classification
| Level | CATH Code | Description | 
|---|---|---|
|   | 3 | Alpha Beta | 
|   | 3.90 | Alpha-Beta Complex | 
|   | 3.90.440 | Nitric Oxide Synthase;Heme Domain; Chain A, domain 2 | 
|   | 3.90.440.10 | Nitric Oxide Synthase;Heme Domain;Chain A domain 2 | 
Domain Context
CATH Clusters
| Superfamily | Nitric Oxide Synthase;Heme Domain;Chain A domain 2 | 
| Functional Family | 
Enzyme Information
| 1.14.13.39 | Nitric-oxide synthase (NADPH). based on mapping to UniProt P29476 2 L-arginine + 3 NADPH + 4 O(2) = 2 L-citrulline + 2 nitric oxide + 3 NADP(+) + 4 H(2)O. -!- The enzyme consists of linked oxygenase and reductase domains. -!- The eukaryotic enzyme binds FAD, FMN, heme (iron protoporphyrin IX) and tetrahydrobiopterin, and its two domains are linked via a regulatory calmodulin-binding domain. -!- Upon calcium-induced calmodulin binding, the reductase and oxygenase domains form a complex, allowing electrons to flow from NADPH via FAD and FMN to the active center. -!- The reductase domain of the enzyme from the bacterium Sorangium cellulosum utilizes a [2Fe-2S] cluster to transfer the electrons from NADPH to the active center. -!- Cf. EC 1.14.14.47. | 
UniProtKB Entries (1)
| P29476 | NOS1_RAT Rattus norvegicus Nitric oxide synthase, brain | 
PDB Structure
| PDB | 5VUN | 
| External Links | |
| Method | X-RAY DIFFRACTION | 
| Organism | |
| Primary Citation | Hydrophilic, Potent, and Selective 7-Substituted 2-Aminoquinolines as Improved Human Neuronal Nitric Oxide Synthase Inhibitors. J. Med. Chem. | 
