Protein: Protein RD3 (Retinal degeneration protein 3) (Q7Z3Z2)
Organism: Homo sapiens (Human)
Function: Plays a critical role in the regulation of enzymes involved in nucleotide cycle in photoreceptors. Inhibits the basal catalytic activity and the GCAP-stimulated activity of GUCY2D and GUCY2F, two retinal guanylyl cyclases involved in the production of cGMP in photoreceptors. Involved in the transport of GUCY2D and GUCY2F to their target sites in the photoreceptor outer segment. Up-regulates the activity of GUK1, a kinase that also plays an essential role for recycling GMP and indirectly, cGMP. Plays an important role for the survival of rods and cones in the retina (By similarity).
Subcellular location: Cell projection, cilium, photoreceptor outer segment {ECO:0000250|UniProtKB:Q8BRE0}. Photoreceptor inner segment {ECO:0000250|UniProtKB:Q8BRE0}. Endosome {ECO:0000250|UniProtKB:Q8BRE0}. Nucleus {ECO:0000269|PubMed:26100624, ECO:0000269|PubMed:29030614}. Cytoplasm {ECO:0000269|PubMed:26100624, ECO:0000269|PubMed:29030614}. Cytoplasm, perinuclear region {ECO:0000269|PubMed:29030614}. Note=Colocalizes with GUCY2E and GUCY2F in rods and cones photoreceptors. Colocalizes with GUK1 in photoreceptor inner segments and to a lesser extent in the outer plexiform layer (By similarity). Strong dot-like perinuclear staining in the epithelial cells (PubMed:29030614). {ECO:0000250|UniProtKB:Q8BRE0, ECO:0000269|PubMed:29030614}.
Sequence: MSLISWLRWNEAPSRLSTRSPAEMVLETLMMELTGQMREAERQQRERSNAVRKVCTGVDYSWLASTPRSTYDLSPIERLQLEDVCVKIHPSYCGPAILRFRQLLAEQEPEVQEVSQLFRSVLQEVLERMKQEEEAHKLTRQWSLRPRGSLATFKTRARISPFASDIRTISEDVERDTPPPLRSWSMPEFRAPKAD
InterPro domains: - IPR028092: Retinal degeneration protein 3 (family) [1-193]
Interaction partners: - Retinal guanylyl cyclase 1
- Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta
- Peripherin-2
- Spermatogenesis-associated protein 7
- Lebercilin
- Aryl-hydrocarbon-interacting protein-like 1
- X-linked retinitis pigmentosa GTPase regulator-interacting protein 1
- Retinol dehydrogenase 12
- Retinoid isomerohydrolase
- Lecithin retinol acyltransferase
Gene Ontology annotations:
Molecular Function (MF): GO:0003674 (molecular function), GO:0005488 (binding), GO:0005515 (protein binding)
Biological Process (BP): GO:0008150 (biological process), GO:0032502 (developmental process), GO:0032501 (multicellular organismal process), GO:0048856 (anatomical structure development), GO:0007275 (multicellular organism development), GO:0060322 (head development), GO:0048731 (system development), GO:0048513 (animal organ development), GO:0007420 (brain development), GO:0007417 (central nervous system development), GO:0007399 (nervous system development)
Cellular Component (CC): GO:0005575 (cellular component), GO:0110165 (cellular anatomical entity), GO:0005622 (intracellular anatomical structure), GO:0043226 (organelle), GO:0042995 (cell projection), GO:0001750 (photoreceptor outer segment), GO:0001917 (photoreceptor inner segment), GO:0120025 (plasma membrane bounded cell projection), GO:0043229 (intracellular organelle), GO:0043227 (membrane-bounded organelle), GO:0043005 (neuron projection), GO:0043231 (intracellular membrane-bounded organelle), GO:0005929 (cilium), GO:0097730 (non-motile cilium), GO:0005634 (nucleus), GO:0097733 (photoreceptor cell cilium), GO:0097731 (9+0 non-motile cilium)