CATH Domain 3e68A01

CATH Classification

Level	CATH Code	Description
	3	Alpha Beta
	3.90	Alpha-Beta Complex
	3.90.340	Nitric Oxide Synthase; Chain A, domain 1
	3.90.340.10	Nitric Oxide Synthase; Chain A, domain 1

Domain Context

CATH Clusters

Superfamily	Nitric Oxide Synthase; Chain A, domain 1
Functional Family

Enzyme Information

1.14.13.39

Nitric-oxide synthase (NADPH).

based on mapping to UniProt P29477

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)

P29477

NOS2_MOUSE

Mus musculus

Nitric oxide synthase, inducible

PDB Structure

PDB	3E68
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism
Primary Citation	Anchored plasticity opens doors for selective inhibitor design in nitric oxide synthase. Garcin, E.D., Arvai, A.S., Rosenfeld, R.J., Kroeger, M.D., Crane, B.R., Andersson, G., Andrews, G., Hamley, P.J., Mallinder, P.R., Nicholls, D.J., St-Gallay, S.A., Tinker, A.C., Gensmantel, N.P., Mete, A., Cheshire, D.R., Connolly, S., Stuehr, D.J., Aberg, A., Wallace, A.V., Tainer, J.A., Getzoff, E.D. Nat.Chem.Biol.