Three HLA-D region antigens defined by primed LD typing.

Abstract

A new method for specific identification of HLA-D antigens was recently described called primed LD [lymphocyte determined antigenic] typing (or PLT). Highly discriminatory PLT cells were developed which clearly differentiate between cells of individuals that restimulate strongly and those that restimulate weakly. Seven such discriminatory PLT cells were used to define 3 antigens called PL1, PL2 and PL3; 2 more PLT cells may define antigen(s) PL4.