|| MNS blood group M+N- status predicted
|| MNS blood group M+N+ status predicted
|| MNS blood group M-N+ status predicted
is a SNP in the GYPA
gene known as 71G>A, which can be used to define the MNS blood group
As represented on the forward (plus) strand, the rs7687256(C) allele defines MNS1, which encodes a glycine at the corresponding residue and thereby the M antigen; the rs7687256(T) allele encodes a glutamic acid and thereby MNS2, which encodes the N antigen.