Homology between the human vitamin D-binding protein (group specific component), alpha-fetoprotein and serum albumin

41 Amino acid long N-terminal sequences of the three major human vitamin D-binding proteins (group-specific components Gc1F, Gc1S and Gc2) were characterized: they were identical. By computer analyses, the alignment of this N-terminal sequence with several sequences of human serum pre-proalbumin and human pre-alpha-fetoprotein was established.