Four KChIP proteins constitute the fifth subfamily (Class E) and are unique to mammals. KChIPs interact with voltage-gated potassium channels and presenilins [5-8]. KChIP1, KChIP3, KChIP4 are expressed predominantly in brain, while KChIP2 is highly expressed in both heart and brain.
K+ channel interacting protein 1 (KChIP1) is a neuronal calcium sensor (NCS) protein that interacts with multiple intracellular molecules. It regulates behavioral anxiety by modulating inhibitory synaptic transmission, and drugs that act on KChIP1 may help to treat patients with mood disorders including anxiety.
Note: Antibody has been developed by UC Davis under a grant by NIH.
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