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. 1979 Dec;6(6):383-90.
doi: 10.1111/j.1744-313x.1979.tb00693.x.

Two apparently healthy Japanese individuals of type MkMk have erythrocytes which lack both the blood group MN and Ss-active sialoglycoproteins

E Tokunaga, S Sasakawa, K Tamaka, H Kawamata, C M Giles, E W Ikin, J Poole, D J Anstee, W Mawby, M J Tanner

Two apparently healthy Japanese individuals of type MkMk have erythrocytes which lack both the blood group MN and Ss-active sialoglycoproteins

E Tokunaga et al. J Immunogenet. 1979 Dec.

Abstract

A Japanese blood donor (H. T.) and his brother (M. S.) are the first homozygous MkMk individuals described; their red cells lack, as expected, known antigens of the MNSs blood group system and also have no demonstrable MN-active and Ss-active glycoproteins. Both MkMk individuals have a naturally occurring atypical antibody in their serum. The antibody in the serum of H. T. is inhibited by MNSs-active glycoprotein preparations from normal erythrocytes.

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