Aliases for KCNIP2 Gene
External Ids for KCNIP2 Gene
Previous GeneCards Identifiers for KCNIP2 Gene
This gene encodes a member of the family of voltage-gated potassium (Kv) channel-interacting proteins (KCNIPs), which belongs to the recoverin branch of the EF-hand superfamily. Members of the KCNIP family are small calcium binding proteins. They all have EF-hand-like domains, and differ from each other in the N-terminus. They are integral subunit components of native Kv4 channel complexes. They may regulate A-type currents, and hence neuronal excitability, in response to changes in intracellular calcium. Multiple alternatively spliced transcript variants encoding distinct isoforms have been identified from this gene. [provided by RefSeq, Jul 2008]
GeneCards Summary for KCNIP2 Gene
KCNIP2 (Potassium Voltage-Gated Channel Interacting Protein 2) is a Protein Coding gene. Diseases associated with KCNIP2 include Spinocerebellar Ataxia Type 19/22 and Brugada Syndrome. Among its related pathways are Antiarrhythmic Pathway, Pharmacodynamics and Phase 1 - inactivation of fast Na+ channels. GO annotations related to this gene include calcium ion binding and protein N-terminus binding. An important paralog of this gene is KCNIP3.
UniProtKB/Swiss-Prot for KCNIP2 Gene
Regulatory subunit of Kv4/D (Shal)-type voltage-gated rapidly inactivating A-type potassium channels. Modulates channel density, inactivation kinetics and rate of recovery from inactivation in a calcium-dependent and isoform-specific manner. In vitro, modulates KCND2/Kv4.2 and KCND3/Kv4.3 currents. Involved in KCND2 and KCND3 trafficking to the cell surface. May be required for the expression of I(To) currents in the heart (By similarity).
Voltage-gated potassium channels (KV) belong to the 6-TM family of potassium channel that also comprises the Ca2+-activated Slo (actually 7-TM) and the Ca2+-activated SK subfamilies. The alpha-subunits contain a single pore-forming region and combine to form tetramers.