Gene: HNMT

Alternate names for this Gene: HMT|HNMT-S1|HNMT-S2|MRT51

Gene Summary: In mammals, histamine is metabolized by two major pathways: N(tau)-methylation via histamine N-methyltransferase and oxidative deamination via diamine oxidase. This gene encodes the first enzyme which is found in the cytosol and uses S-adenosyl-L-methionine as the methyl donor. In the mammalian brain, the neurotransmitter activity of histamine is controlled by N(tau)-methylation as diamine oxidase is not found in the central nervous system. A common genetic polymorphism affects the activity levels of this gene product in red blood cells. Multiple alternatively spliced transcript variants that encode different proteins have been found for this gene.

Gene is located in Chromosome: 2

Location in Chromosome : 2q22.1

Description of this Gene: histamine N-methyltransferase

Type of Gene: protein-coding