 Namely, it is differentially glycosylated to produce either a 28 kDa peptide or a 32 kDa peptide.Two of these peptides randomly combine to form a homodimer linked by a disulfide bond.These subunits have a C-type lectin domain (CTLD) that binds ligands, a transmembrane domain, and a cytoplasmic tail that relays signals to the cell interior.