Gene Information
Gene NameSAG
OrganismHomo sapiens (Human)
Gene Length405
Protein NamesS-arrestin (48 kDa protein) (Retinal S-antigen) (S-AG) (Rod photoreceptor arrestin)
Target NameNA
Target TypeNA
Gene Age544 ( ENSG00000130561 )
3 ( ENSG00000281857 )
Evolutionary StageOpisthokonta
AlphaFoldDBP10523
Gene CardSAG
Uniprot IDP10523
PfamPF02752; PF00339
In ASDno
Allosteric Predictionyes (0.84524445)
Ortholog in AnimalsAlpaca_ SAG ( ortholog_one2one )
Dog_ SAG ( ortholog_one2one )
GuineaPig_ SAG ( ortholog_one2one )
Macaque_ SAG ( ortholog_one2one )
Mouse_ Sag ( ortholog_one2one )
Pig_ SAG ( ortholog_one2one )
Rat_ Sag ( ortholog_one2one )
Rabbit_ SAG ( ortholog_one2one )
OhnologsARR3
ParalogsARR3, ARRB1, ARRB2
TissueNA
Tissue SpecificityDetected in retina, in the proximal portion of the outer segment of rod photoreceptor cells (at protein level). {ECO:0000269|PubMed:3720866}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.002808(Rat);0.036364(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs7565275  rs115857633  rs137886124  rs112613526  rs200602069  rs1427707173  rs1046976  rs1046974 
Subcellular location [CC]Cell projection, cilium, photoreceptor outer segment {ECO:0000269|PubMed:3720866}. Membrane {ECO:0000250|UniProtKB:P20443};
Peripheral membrane protein {ECO:0000250|UniProtKB:P20443}. Note=Highly expressed in photoreceptor outer segments in light-exposed retina. Evenly distributed throughout rod photoreceptor cells in dark-adapted retina (By similarity). Predominantly dectected at the proximal region of photoreceptor outer segments, near disk membranes (PubMed:3720866). {ECO:0000250|UniProtKB:P08168, ECO:0000269|PubMed:3720866}.
Mouse PG classificationHPG
click here to return to the previous page