Localizing KN antigens to LHR-D.

Western blots of red cell CR1 from donors selected for their KN phenotype (shown below each lane). (A) The MAb 3C6.D11 raised against LHR-D. To demonstrate that protein was present in lanes 1 and 3, the same blot was washed and incubated with another CR1 MAb (J3D3) that is known to react with all size and blood group variants of CR1 (B).