SAG Gene Summary [Human]

Members of arrestin/beta-arrestin protein family are thought to participate in agonist-mediated desensitization of G-protein-coupled receptors and cause specific dampening of cellular responses to stimuli such as hormones, neurotransmitters, or sensory signals. S-arrestin, also known as S-antigen, is a major soluble photoreceptor protein that is involved in desensitization of the photoactivated transduction cascade. It is expressed in the retina and the pineal gland and inhibits coupling of rhodopsin to transducin in vitro. Additionally, S-arrestin is highly antigenic, and is capable of inducing experimental autoimmune uveoretinitis. Mutations in this gene have been associated with Oguchi disease, a rare autosomal recessive form of night blindness. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
SAG
Official Name
S-antigen visual arrestin [Source:HGNC Symbol;Acc:HGNC:10521]
Ensembl ID
ENSG00000130561
Bio databases IDs NCBI: 6295 Ensembl: ENSG00000130561
Aliases S-antigen visual arrestin, arrestin 1, rod arrestin
Synonyms A930001K18Rik, Arr1, arrestin, DKFZP686J1593, Irbp, LOC683311, RETSAG, ROD ARRESTIN, RP47, RP96, SAGMR, SANTI, S-ANTIGEN, S-antigen, retina and pineal gland (arrestin), S-antigen visual arrestin, VISUAL ARRESTIN
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human SAG often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • protein phosphatase inhibitor activity
  • Arrestin (or S-antigen), C-terminal domain
  • spectrin binding
  • phosphoprotein binding
  • protein binding
  • Arrestin (or S-antigen), N-terminal domain

Pathways

Biological processes and signaling networks where the SAG gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
binds
disease
  • non-insulin-dependent diabetes mellitus
  • pancreatic carcinoma
  • Huntington disease
  • Oguchi disease type 1
  • spinocerebellar ataxia type 7
  • oguchi disease type 2
  • Oguchi disease
  • cone dystrophy
  • systemic lupus erythematosus
  • retinitis pigmentosa type 96
regulates
role in cell
  • migration
  • electrophysiology
  • abnormal morphology
  • upregulation in
  • inactivation in

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Cytoplasm
  • perinuclear region
  • Nucleus
  • cytosol
  • nerve ending
  • synapse
  • photoreceptor outer segments
  • photoreceptor inner segments
  • perikaryon
  • plasma

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human SAG gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • rhodopsin mediated signaling pathway
  • cell surface receptor signaling pathway
  • G-protein coupled receptor internalization

Cellular Component

Where in the cell the gene product is active
  • membrane
  • cytosol
  • photoreceptor inner segment
  • photoreceptor outer segment

Molecular Function

What the gene product does at the molecular level
  • protein phosphatase inhibitor activity
  • G-protein coupled receptor binding
  • protein binding
  • phosphoprotein binding
  • opsin binding

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.