A ‘New’ Allele Giving Further Insight into the LW Blood Group System

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Abstract
Nea, a red cell antigen present in 6% of Finnish people but in less than 1% of other Europeans tested, is shown to be part of the LW system. Tests on 10,025 Finnish donors show the antithetical relationship of anti‐Nea (proposed name anti‐LWb) and anti‐LW made by LW3 people (proposed name anti‐LWa). Tests on families of previously reported LW3 propositi and of LW(a‐b+) Finnish donors support the hypothesis that Nea (L Wb) is an allele at the L W locus which when homozygous produces the phenotype once called LW3.
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