Ito channels are octomeric complexes with four subunits of each Kv4.2 and K+ channel-interacting protein 2.
Kim LA, Furst J, Butler MH, Xu S, Grigorieff N, Goldstein SA. Ito channels are octomeric complexes with four subunits of each Kv4.2 and K+ channel-interacting protein 2. J Biol Chem. 2004 Feb 13; 279(7):5549-54.