CHRNA3
CHRNA3 (Neuronal acetylcholine receptor subunit alpha-3) is a gene. In the public catalogues the evidence so far is association rather than a proven role. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.
Biology
Component of neuronal acetylcholine receptors (nAChRs) that function as pentameric, ligand-gated cation channels with high calcium permeability among other activities. nAChRs are excitatory neurotrasnmitter receptors formed by a collection of nAChR subunits known to mediate synaptic transmission in the nervous system and the neuromuscular junction. Each nAchR subunit confers differential attributes to channel properties, including activation, deactivation and desensitisation kinetics, pH sensitivity, cation permeability, and binding to allosteric modulators. CHRNA3 forms heteropentameric neuronal acetylcholine receptors with CHRNB2 and CHRNB4, with CHRNA5, and CHRNB3 as accesory subunits. CHRNA3:CHRNB4 being predominant in neurons of the autonomic ganglia, it is known as ganglionic nicotinic receptor. CHRNA3:CHRNB4 or CHRNA3:CHRNA5:CHRNB4 play also an important role in the habenulo-interpeduncular tract, modulating the mesolimbic dopamine system and affecting reward circuits and addiction. Hypothalamic CHRNA3:CHRNB4 nAChR activation by nicotine leads to activation of POMC neurons and a decrease in food intake. Location: Synaptic cell membrane; Cell membrane; Endoplasmic reticulum; Golgi apparatus (UniProt). Locus 15q25.1 (HGNC).
External identifiers
Built from HGNC, Ensembl, UniProt and ChEMBL idsProducts by modality and phase
Browse products →No product in the corpus is aimed at this target yet.
Trials
Evidence ranking →No trial in the corpus names this target or one of its products.
Resistance routes
Unaddressed routes →The resistance atlas has no route that names this target.
Pathways
Pathway-to-drug matrix →No pathway diagram carries this target as a node.
Companion diagnostics
Assay registry →No companion diagnostic in the registry measures this target.
Preclinical models
All models →No model entry for this target yet; check the cancer entries on the models page.
Open questions
All open questions →No open questions recorded for this target yet. Suggest one.
Literature
Preprints →Query for this target: (TITLE:"CHRNA3" OR ABSTRACT:"CHRNA3" OR TITLE:"cholinergic receptor nicotinic alpha 3 subunit" OR ABSTRACT:"cholinergic receptor nicotinic alpha 3 subunit" OR TITLE:"Neuronal acetylcholine receptor subunit alpha-3" OR ABSTRACT:"Neuronal acetylcholine receptor subunit alpha-3") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about CHRNA3, not a curated reading list.
Export
The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/chrna3.json. Licence CC BY-NC 4.0.