CNGA2 encodes the human gene, Cyclic nucleotide gated channel alpha 2. It may also be known as: Cyclic nucleotide-gated olfactory channel; Cyclic nucleotide-gated cation channel 2; Cyclic nucleotide-gated channel alpha-2; CNG channel alpha-2; CNG-2; CNG2; CNCA; CNCA1; OCNC1; OCNCALPHA; OCNCa. The encoded protein has an amino acid length of 664 and a mass of 76.0 kDa. Other isoforms may exist. CNGA2 is a member of the Cyclic nucleotide-gated cation channel (TC 1.A.1.5) family, CNGA2 subfamily. Homologs of this gene exist in other organisms, including: Mouse, Rat, Frog, Chicken.