Anti-CD235a antibody is a purified biotinylated recombinant human antibody which recognizes the CD235a/GYPA protein. Glycophorin A is the major intrinsic membrane protein of the erythrocyte. The N-terminal sialoglycosylated segment, which lies outside the erythrocyte membrane, has MN and Ss blood group receptors. This antibody has been tested for specific binding to purified human CD235a protein (BPS Bioscience #101196) in a colorimetric ELISA binding assay.