competitive binding assays showed that antibodies of the same blood group specificity ( four anti-ns reacting with sgp alpha and sgp delta ( bric 33 , bric 115 , bric 120 , bric 123 ) and four anti-wrbs reacting with sgp alpha ( r7 , bric 14 , bric 89 , bric 93 ) inhibited binding of each other to red cells .
C0017955
sgp alpha
C0014792
red cells