OPN3 — Opsin 3
OPN3 belongs to a gene co-expression module in 1 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
OPN3's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Macrophages | Hypoxia Stress Response Stress | ACE, AMPD3, APP, ASPH, BCAT1, BEX3, BHLHE41, BNIP3 +34 more | View in SCUBA |
About the gene
| Synonyms | ECPN, encephalopsin, ERO, NMO-1, PPP1R116 |
|---|---|
| Chromosome | 1: 241590102-241677376 |
| Predicted location | Membrane |
| Essential gene | No |
| Protein class | G-protein coupled receptors, Predicted membrane proteins |
| Molecular function | G-protein coupled receptor, Photoreceptor protein, Receptor, Retinal protein, Transducer |
| Biological process | Sensory transduction |
Function
G-protein coupled receptor which selectively activates G proteins via ultraviolet A (UVA) light-mediated activation in the skin. Binds both 11-cis retinal and all-trans retinal. Regulates melanogenesis in melanocytes via inhibition of alpha-MSH-induced MC1R- mediated cAMP signaling, modulation of calcium flux, regulation of CAMK2 phosphorylation, and subsequently phosphorylation of CREB, p38, ERK and MITF in response to blue light. Plays a role in melanocyte survival through regulation of intracellular calcium levels and subsequent BCL2/RAF1 signaling. Additionally regulates apoptosis via cytochrome c release and subsequent activation of the caspase cascade. Required for TYR and DCT blue light-induced complex formation in melanocytes. Involved in keratinocyte differentiation in response to blue-light. Required for the UVA-mediated induction of calcium and mitogen-activated protein kinase signaling resulting in the expression of MMP1, MMP2, MMP3, MMP9 and TIMP1 in dermal fibroblasts. Plays a role in light-mediated glucose uptake, mitochondrial respiration and fatty acid metabolism in brown adipocyte tissues (By similarity). May be involved in photorelaxation of airway smooth muscle cells, via blue-light dependent GPCR signaling pathways (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.