Background：

This gene encodes a member of the family of voltage-gated potassium (Kv) channel-interacting proteins， which belong to the recoverin branch of the EF-hand superfamily. Members of this family are small calcium binding proteins containing EF-hand-like domains. They are integral subunit components of native Kv4 channel complexes that may regulate A-type currents， and hence neuronal excitability， in response to changes in intracellular calcium. The encoded protein also functions as a calcium-regulated transcriptional repressor， and interacts with presenilins. Alternatively spliced transcript variants encoding different isoforms have been described.