Centrin

Centrins, also known as caltractins, are a family of calcium-binding phosphoproteins found in the centrosome of eukaryotes. Centrins are present in the centrioles and pericentriolar lattice. Human centrin genes are CETN1, CETN2 and CETN3. Centrin was first isolated and characterized from the flagellar roots of the green alga Tetraselmis striata.