| Immunogen | Fusion protein amino acids 1-261 (full-length) of human CALB1 (also known as Calbindin D28, Vitamin D-dependent calcium-binding protein, D-28K, Spot 35 protein, CAB27 and PCD-29, accession number P05937); Rat: 98% identity (257/261 amino acids identical); Mouse: 98% identity (257/261 amino acids identical); 60% identity with CALB2/Calretinin |