Anti-cholinergic receptor, nicotinic, alpha 9 (neuronal) antibodies enable researchers to detect and measure the cholinergic receptor, nicotinic, alpha 9 (neuronal) antigen in biological samples. This target is a reported synonym of the CHRNA9 gene, which encodes cholinergic receptor nicotinic alpha 9 subunit. This protein is known to function in chemical synaptic transmission and the regulation of intracellular calcium, among other biological roles. The human version of cholinergic receptor, nicotinic, alpha 9 (neuronal) has a canonical amino acid length of 479 residues and a protein mass of 54.8 kilodaltons. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include neuronal acetylcholine receptor subunit alpha-9, NACHR alpha 9, and acetylcholine receptor, neuronal nicotinic, alpha-9 subunit.