||Receptor for all-trans- and 11-cis-retinal. Binds preferentially to the former and may catalyze the isomerization of the chromophore by a retinochrome-like mechanism.
|Gene References into Functions
- The results indicate that the cone photoreceptors of humans and cattle express a nonvisual opsin of the Go/RGR or tetraopsin group. PMID: 30034210
- study to systemically analyze the potential role of variants of RGR in retinal diseases results of the suggested that the heterozygous truncation variants in RGR were less likely to be pathogenic PMID: 27748892
- E150K opsin is partially colocalized with the cis/medial Golgi compartment but not with the trans-Golgi network; results are consistent with recessive pattern of inheritance; retinal degeneration results from deficient export of opsin from the Golgi PMID: 16737970
- These results indicate that after exon-skipping RGR splice isoform (RGR-d) is synthesized, the RGR-d epitope is released at the basal surface of the retinal pigment epithelium and deposited into Bruch's membrane in human eyes throughout adult life. PMID: 17679941
- RGR-opsin mediates light-dependent translocation of all-trans-retinyl esters from a storage pool in lipid droplets to an "isomerase pool" in membranes of the endoplasmic reticulum. PMID: 18474598
- the exon-skipping variant of RGR (RGR-d) is found in extracellular deposits;at the base of early-stage drusen mounds in the older donors and may precede the formation of these drusen PMID: 19450444
|Involvement in disease
||Retinitis pigmentosa 44 (RP44)
||Membrane, Multi-pass membrane protein
||G-protein coupled receptor 1 family, Opsin subfamily
||Preferentially expressed at high levels in the retinal pigment epithelium (RPE) and Mueller cells of the neural retina.