... alleles may be responsible for the < /b> generation of < /b> four possible allelic lineages (represented by A, B 2, B 1,and W ), one of < /b> which (W/M) i s r evealed by this work. The< /b> high polymorp hism of < /b> the < /b> ... recently, the < /b> B alle lehas been split up in to four alleles giving rise to the < /b> synthesis of < /b> four protein variants B 1 ,B 2 ,B 3,andB4, which differ as aresult of < /b> amino-acid substitutions [6]. These ... caseinFigure 1A shows t he typical electrophoretic patternsyielded, in polyacrylamide gel at pH 8.6, by the < /b> new as1-Casphenotype, subsequently shown to be a heterozygous M/F(M being the < /b> new variant),...