Fig. 7.
Levels of A1 antigen on GPs captured from platelet lysates prepared from various donors.
One donor was from group O (indicated by a ▪), and 2 donors were from each of the following groups: A1 normal expressers (▨); Type I high expressers of the A antigen (▧); and Type II high expressers of the A antigen (■). GPIIb/IIIa, GPIb/IX, GPIV, GPIa/IIa, and PECAM-1 (CD31) were captured from the lysates with GP-specific mAbs, and their A1 antigen content was determined with biotin-labeled monoclonal anti-A (BRIC 145). The results are expressed as O.D. measured at 410 nm. The brackets indicate 1 SD (triplicate determinations).
