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Low-incidence MNS antigens associated with single amino acid changes and their susceptibility to enzyme treatment Cover

Low-incidence MNS antigens associated with single amino acid changes and their susceptibility to enzyme treatment

By: M. E. Reid and  J. R. Storry  
Paid access
|Oct 2020

Abstract

MNS antigens are carried on glycophorin A (GPA), glycophorin B (GPB), or their variants. Antigens at the N-terminus of GPA are sensitive to cleavage by ficin, papain, and trypsin but are resistant to α-chymotrypsin. Antigens at the N-terminus of GPB are sensitive to cleavage by ficin, papain, and α-chymotrypsin but are resistant to trypsin treatment. These characteristics have been used to aid in the identification of blood group alloantibodies. Recent molecular analyses have identified changes in amino acids that are associated with several low-incidence antigens in the MNS blood group system. This review relates the molecular studies with the susceptibility or resistance of these antigens to treatment of intact red blood cells by proteolytic enzymes. Immunohematology 2001;17:76–81.

DOI: https://doi.org/10.21307/immunohematology-2019-551 | Journal eISSN: 1930-3955 | Journal ISSN: 0894-203X
Language: English
Page range: 76 - 81
Published on: Oct 14, 2020
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2020 M. E. Reid, J. R. Storry, published by American National Red Cross
This work is licensed under the Creative Commons License.