Anti-CDAII antibodies enable researchers to detect and measure the CDAII antigen in biological samples. This target is a reported synonym of the SEC23B gene, which encodes SEC23 homolog B, COPII coat complex component. This protein is known to function in intracellular protein transport, among other biological roles. The human version of CDAII has a canonical amino acid length of 767 residues and a protein mass of 86.5 kilodaltons. It is reported to be localized in the membrane, cytoplasmic vesicles, ER, and cytoplasm of cells. CDAII is a member of the SEC23/SEC24 protein family.