This antibody recognises erythrocytes of normal Rh types but does not recognise Rhnull erythrocytes. This antibody reacts with 31 kDa and 35-51 kDa proteins which were designated CD240DCE at the 7th leucocyte typing workshop.
The Rh blood group system is the second most clinically significant of the blood groups, second only to ABO. It is also the most polymorphic of the blood groups, with variations due to deletions, gene conversions, and missense mutations. The Rh blood group includes this gene which encodes both the RhC and RhE antigens on a single polypeptide and a second gene which encodes the RhD protein. The classification of Rh-positive and Rh-negative individuals is determined by the presence or absence of the highly immunogenic RhD protein on the surface of erythrocytes. A mutation in this gene results in amorph-type Rh-null disease. There are thirteen named isoforms.Synonyms: Blood group Rh(CE) polypeptide, Rh polypeptide 1, Rh30A, RhIXB, Rhesus C/E antigens