Gene: CHRNB3

Alternate names for this Gene: -

Gene Summary: The nicotinic acetylcholine receptors (nAChRs) are members of a superfamily of ligand-gated ion channels that mediate fast signal transmission at synapses. The nAChRs are (hetero)pentamers composed of homologous subunits. The subunits that make up the muscle and neuronal forms of nAChRs are encoded by separate genes and have different primary structure. There are several subtypes of neuronal nAChRs that vary based on which homologous subunits are arranged around the central channel. They are classified as alpha-subunits if, like muscle alpha-1 (MIM 100690), they have a pair of adjacent cysteines as part of the presumed acetylcholine binding site. Subunits lacking these cysteine residues are classified as beta-subunits (Groot Kormelink and Luyten, 1997 [PubMed 9009220]). Elliott et al. (1996) [PubMed 8906617] stated that the proposed structure for each subunit is a conserved N-terminal extracellular domain followed by 3 conserved transmembrane domains, a variable cytoplasmic loop, a fourth conserved transmembrane domain, and a short C-terminal extracellular region.[supplied by OMIM, Apr 2010].

Gene is located in Chromosome: 8

Location in Chromosome : 8p11.21

Description of this Gene: cholinergic receptor nicotinic beta 3 subunit

Type of Gene: protein-coding

Gene: LOC105379396

Alternate names for this Gene:

Gene Summary:

Gene is located in Chromosome:

Location in Chromosome :

Description of this Gene:

Type of Gene:

rs13280604 in CHRNB3;LOC105379396 gene and Smoking Behaviors PMID 20418888 2010 Sequence variants at CHRNB3-CHRNA6 and CYP2A6 affect smoking behavior.