 The gene is located on the Watson (plus) strand of the short arm of chromosome 12 (12p13.32).The gene itself is 8,348 bases in length and encodes a protein of 495 amino acids (predicted molecular weight 56.466 kiloDaltons).The recommended name for this protein is potassium voltage-gated channel subfamily A member 1 but a number of alternatives have been used in the literature including HuK1 (human K+ channel I), RBK1 (rubidium potassium channel 1), MBK (mouse brain K+ channel), voltage gated potassium channel HBK1, voltage gated potassium channel subunit Kv1.1, voltage-gated K+ channel HuKI and AEMK (associated with myokymia with periodic ataxia).