Rabbit anti-Human OPN3 Polyclonal Antibody

Uniprot Id

Q9H1Y3

Target Species

Human

Target Name

OPN3

Target Full Name

Opsin-3

Target 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. May be involved in photorelaxation of airway smooth muscle cells, via blue-light dependent GPCR signaling pathways.

Target Subcellular Location

Cell membrane; Multi-pass membrane protein. Cytoplasm.

Target Protein Families

G-protein coupled receptor 1 family, Opsin subfamily

Target Tissue Specificity

Expressed in tracheal airway smooth muscle (at protein level). Expressed throughout the epidermis and dermis, predominantly in the basal layer on the facial and abdominal skin (at protein level). Expressed in dermal fibroblasts (at protein level). Express

Target Synonyms

OPN3; ECPN; Opsin-3; Encephalopsin; Panopsin

Target Background

Opsins are members of the guanine nucleotide-binding protein (G protein)-coupled receptor superfamily. In addition to the visual opsins, mammals possess several photoreceptive non-visual opsins that are expressed in extraocular tissues. This gene, opsin 3, is strongly expressed in brain and testis and weakly expressed in liver, placenta, heart, lung, skeletal muscle, kidney, and pancreas. The gene may also be expressed in the retina. The protein has the canonical features of a photoreceptive opsin protein.