There are a number of ELISA Kits available for the measurement of hyperpolarization-activated cyclic nucleotide-gated potassium channel 3, another term for the human protein, hyperpolarization activated cyclic nucleotide gated potassium channel 3. Other synonyms may include: potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 3. It is encoded by the HCN3 gene to yield a protein 774 amino acids in length and 86 kDa in size. The protein is categorized into the Potassium channel HCN family. Versions of hyperpolarization-activated cyclic nucleotide-gated potassium channel 3 are present in other organisms, including: Mouse, Rat, Zebrafish.