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Tbio
GNAT3
Guanine nucleotide-binding protein G(t) subunit alpha-3

Protein Summary
Description
Guanine nucleotide-binding protein (G protein) alpha subunit playing a prominent role in bitter and sweet taste transduction as well as in umami (monosodium glutamate, monopotassium glutamate, and inosine monophosphate) taste transduction. Transduction by this alpha subunit involves coupling of specific cell-surface receptors with a cGMP-phosphodiesterase; Activation of phosphodiesterase lowers intracellular levels of cAMP and cGMP which may open a cyclic nucleotide-suppressible cation channel leading to influx of calcium, ultimately leading to release of neurotransmitter. Indeed, denatonium and strychnine induce transient reduction in cAMP and cGMP in taste tissue, whereas this decrease is inhibited by GNAT3 antibody. Gustducin heterotrimer transduces response to bitter and sweet compounds via regulation of phosphodiesterase for alpha subunit, as well as via activation of phospholipase C for beta and gamma subunits, with ultimate increase inositol trisphosphate and increase of intrace ...more
Uniprot Accession IDs
Gene Name
Ensembl ID
  • ENST00000398291
  • ENSP00000381339
  • ENSG00000214415

Symbol
  • GDCA
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
molecular function
1
cellular component
0.85
tissue
0.71
cell type or tissue
0.63
interacting protein
0.63


IDG Development Level Summary
Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 150.58   (req: < 5)
Gene RIFs: 5   (req: <= 3)
Antibodies: 139   (req: <= 50)
Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 150.58   (req: >= 5)
Gene RIFs: 5   (req: > 3)
Antibodies: 139   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 13
Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0
Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0