Q9TUX8 (NOS3_CANFA) Reviewed, UniProtKB/Swiss-Prot
Last modified
April 3, 2013.
Version 79.
History...
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Nitric oxide synthase, endothelial EC=1.14.13.39 Alternative name(s): Constitutive NOS Short name=cNOS EC-NOS Endothelial NOS Short name=eNOS NOS type III Short name=NOSIII | ||||
| Gene names |
| ||||
| Organism | Canis familiaris (Dog) (Canis lupus familiaris) [Reference proteome] | ||||
| Taxonomic identifier | 9615 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Laurasiatheria › Carnivora › Caniformia › Canidae › Canis › ![]() |
Protein attributes
| Sequence length | 1205 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Produces nitric oxide (NO) which is implicated in vascular smooth muscle relaxation through a cGMP-mediated signal transduction pathway. NO mediates vascular endothelial growth factor (VEGF)-induced angiogenesis in coronary vessels and promotes blood clotting through the activation of platelets By similarity. |
| Catalytic activity | 2 L-arginine + 3 NADPH + 4 O2 = 2 L-citrulline + 2 nitric oxide + 3 NADP+ + 4 H2O. |
| Cofactor | Heme group By similarity. Binds 1 FAD By similarity. Binds 1 FMN By similarity. Tetrahydrobiopterin (BH4). May stabilize the dimeric form of the enzyme By similarity. |
| Enzyme regulation | Stimulated by calcium/calmodulin. Inhibited by NOSIP and NOSTRIN By similarity. |
| Subunit structure | Homodimer. Interacts with NOSIP and NOSTRIN By similarity. |
| Subcellular location | Membrane › caveola By similarity. Cytoplasm › cytoskeleton By similarity. Golgi apparatus By similarity. Cell membrane By similarity. Note: Specifically associates with actin cytoskeleton in the G2 phase of the cell cycle, which is favored by interaction with NOSIP and results in a reduced enzymatic activity By similarity. |
| Post-translational modification | Phosphorylation by AMPK at Ser-1179 in the presence of Ca2+-calmodulin (CaM) activates activity. In absence of Ca2+-calmodulin, AMPK also phosphorylates Thr-497, resulting in inhibition of activity. Phosphorylation of Ser-116 by CDK5 reduces activity By similarity. |
| Sequence similarities | Belongs to the NOS family. Contains 1 FAD-binding FR-type domain. Contains 1 flavodoxin-like domain. |
Ontologies
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 1205 | 1205 | Nitric oxide synthase, endothelial | PRO_0000289580 | |||||
Regions | |||||||||
| Domain | 522 – 705 | 184 | Flavodoxin-like | ||||||
| Domain | 758 – 1004 | 247 | FAD-binding FR-type | ||||||
| Nucleotide binding | 651 – 682 | 32 | FMN By similarity | ||||||
| Nucleotide binding | 795 – 806 | 12 | FAD By similarity | ||||||
| Nucleotide binding | 937 – 947 | 11 | FAD By similarity | ||||||
| Nucleotide binding | 1012 – 1030 | 19 | NADP By similarity | ||||||
| Nucleotide binding | 1110 – 1125 | 16 | NADP By similarity | ||||||
| Region | 100 – 488 | 389 | Interaction with NOSIP By similarity | ||||||
| Region | 492 – 512 | 21 | Calmodulin-binding Potential | ||||||
Sites | |||||||||
| Metal binding | 96 | 1 | Zinc By similarity | ||||||
| Metal binding | 101 | 1 | Zinc By similarity | ||||||
| Metal binding | 186 | 1 | Iron (heme axial ligand) By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 116 | 1 | Phosphoserine; by CDK5 By similarity | ||||||
| Modified residue | 143 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 497 | 1 | Phosphothreonine; by AMPK By similarity | ||||||
| Modified residue | 635 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 1177 | 1 | Phosphothreonine By similarity | ||||||
| Modified residue | 1179 | 1 | Phosphoserine; by AMPK By similarity | ||||||
| Lipidation | 2 | 1 | N-myristoyl glycine By similarity | ||||||
| Lipidation | 15 | 1 | S-palmitoyl cysteine By similarity | ||||||
| Lipidation | 26 | 1 | S-palmitoyl cysteine By similarity | ||||||
Sequences
| ||||||||||||||||||
References
| [1] | "Assembly and characterization of canine heart endothelial nitric oxide synthase cDNA and 5'-flanking sequence by homology (RT-)PCR cloning." Schwemmer M., Bassenge E. Nitric Oxide 3:254-264(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Heart. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF143503 mRNA. Translation: AAD52161.1. |
| UniGene | Cfa.108. |
3D structure databases | |
| HSSP | HSSP built from PDB template 1M9M based on UniProtKB P29474. |
| ProteinModelPortal | Q9TUX8. |
| SMR | Q9TUX8. Positions 67-482, 731-1164. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 9615.ENSCAFP00000006985. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Phylogenomic databases | |
| eggNOG | COG4362. |
| HOGENOM | HOG000220884. |
| HOVERGEN | HBG000159. |
Family and domain databases | |
| Gene3D | 1.20.990.10. 1 hit. 3.90.340.10. 1 hit. |
| InterPro | IPR003097. FAD-binding_1. IPR017927. Fd_Rdtase_FAD-bd. IPR001094. Flavdoxin. IPR008254. Flavodoxin/NO_synth. IPR001709. Flavoprot_Pyr_Nucl_cyt_Rdtase. IPR023173. NADPH_Cyt_P450_Rdtase_dom3. IPR004030. NO_synthase_oxygenase_dom. IPR026009. NOS. IPR012144. NOS_met. IPR001433. OxRdtase_FAD/NAD-bd. IPR017938. Riboflavin_synthase-like_b-brl. [Graphical view] |
| PANTHER | PTHR19384:SF5. PTHR19384:SF5. 1 hit. |
| Pfam | PF00667. FAD_binding_1. 1 hit. PF00258. Flavodoxin_1. 1 hit. PF00175. NAD_binding_1. 1 hit. PF02898. NO_synthase. 1 hit. [Graphical view] |
| PIRSF | PIRSF000333. NOS. 1 hit. |
| PRINTS | PR00369. FLAVODOXIN. PR00371. FPNCR. |
| SUPFAM | SSF56512. NO_synthase_oxygenase_reg. 1 hit. SSF63380. Riboflavin_synthase_like_b-brl. 1 hit. |
| PROSITE | PS51384. FAD_FR. 1 hit. PS50902. FLAVODOXIN_LIKE. 1 hit. PS60001. NOS. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| NextBio | 20817281. |
Entry information
| Entry name | NOS3_CANFA | ||||||||
| Accession | Primary (citable) accession number: Q9TUX8 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| SIMILARITY comments Index of protein domains and families |

Clusters with
