Serological and biochemical identification of HLA-Aw33 subtypes

Abstract
In the present study, we show, on the basis of serology, absorption experiments, and one-dimensional isoelectric focusing, that the well-defined HLA-Aw33 antigen can be separated into two subtypes, provisionally called Aw33.1 and Aw33.2, which differ in race distribution and linkage disequilibrium.