Miltenberger blood group antigen type III (Mi.III) enhances the expression of band 3.

ABSTRACT: The special blood group antigen Mi.III exhibits a characteristic hybrid structure of glycophorin A (GPA) and glycophorin B, termed Gp.Mur. This phenotype has exceptionally high occurrence rates in several indigenous tribes in Taiwan ( approximately 21.2%-88.4%). Because glycophorin/Miltenberger begins interaction with anion exchanger-1 (AE1) in the endoplasmic reticulum, we hypothesized that the AE1-based macrocomplexes on erythrocyte membranes obtained from Mi.III(+) people could be differentiated from those obtained from non-Miltenberger people. Quantitative mass spectrometric comparison of the AE1-based complexes by iTRAQ (Applied Biosystems) revealed 25% to 67% higher expression of AE1 in Mi.III(+) erythrocytes. In accordance with the higher AE1 level, the Mi.III(+) erythrocytes exhibi

SUBMITTER: Hsu K 

PROVIDER: S-EPMC2738576 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature