Intracellular calcium appears to be most critical in the 1 , 25D3 -priming stage of differentiation , while calpain is essential in the TPA maturation response .
intracellular calcium appears to be most critical in the 1 , 25d3 -priming stage of differentiation , while calpain is essential in the tpa maturation response .
O B-atom O O O O O O O B-lipid I-lipid I-lipid O O O O O O B-protein_molecule O O O O B-other_organic_compound O O O