What is "calbindin"

n. (context protein English) Any of a class of calcium-binding proteins first described as the vitamin D-dependent calcium binding proteins in intestine and kidney.

Calbindin refers to several calcium-binding proteins. They were originally described as vitamin D-dependent calcium-binding proteins in the intestine and kidney in the chick and mammals. They are now classified in different sub-families as they differ in the number of Ca binding EF-hand sites.