CHRNA3

This locus encodes a member of the nicotinic acetylcholine receptor family of proteins. Members of this family of proteins form pentameric complexes comprised of both alpha and beta subunits. This locus encodes an alpha-type subunit, as it contains characteristic adjacent cysteine residues. The encoded protein is a ligand-gated ion channel that likely plays a role in neurotransmission. Polymorphisms in this gene have been associated with an increased risk of smoking initiation and an increased susceptibility to lung cancer. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2009]

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 CHRNA3 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.

Biological processes and signaling networks where the CHRNA3 gene in human plays a role, providing insight into its function and relevance in health or disease.

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.

Describes the biological processes, cellular components, and molecular functions associated with the human CHRNA3 gene, providing context for its role in the cell.