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. 2011 May 19;6(5):e20113. doi: 10.1371/journal.pone.0020113

Table 2. Comparison of FUT2 genotypedeterminations with secretor phenotype determinations.

FUT2 genotype based on 428G>A SNP Phenotype Total
Non-secretor Secretor UnknownA
Non-secretor (AA) 12 0 2 14
Secretor (GA) 0 27 6 33
Secretor (GG) 0 21 3 24
A

Secretor phenotype could not be determined for the Lewis negative individuals by hemagglutination assay (phenotypic assay) applied here.