Ready-to-use ELISA kits are available for the detection of KCa5, an alias of the protein, potassium calcium-activated channel subfamily U member 1. The official gene symbol is KCNU1. The protein, with a mass of 129.5 kDa and length of 1149 residues, is reported to be membrane-associated. It is a member of the Potassium channel family, Calcium-activated (TC 1.A.1.3) subfamily, KCa5.1/KCNU1 sub-subfamily and may be known by other names, including: KCa5, KCNMC1, Slowpoke homolog 3, Calcium-activated potassium channel subfamily M subunit alpha-3, and potassium channel subfamily U member 1, and Kcnma3.