This gene encodes an intracellular calcium-binding protein belonging to the troponin C superfamily. Members of this protein family have six EF-hand domains which bind calcium. This protein plays a role in diverse cellular functions, including message targeting and intracellular calcium buffering. It also functions as a modulator of neuronal excitability, and is a diagnostic marker for some human diseases, including Hirschsprung disease and some cancers. Alternative splicing results in multiple transcript variants.
CALB2; calbindin 2; calbindin 2, 29kDa (calretinin); calretinin; CAL2; calbindin D29K; 29 kDa calbindin; calbindin 2, (29kD, calretinin); CR; CAB29