The Minor Histocompatibility Antigen HA-1: A Diallelic Gene with a Single Amino Acid Polymorphism

Author:

den Haan Joke M. M.1234,Meadows Leslie M.1234,Wang Wei1234,Pool Jos1234,Blokland Els1234,Bishop Tracie L.1234,Reinhardus Carla1234,Shabanowitz Jeffrey1234,Offringa Rienk1234,Hunt Donald F.1234,Engelhard Victor H.1234,Goulmy Els1234

Affiliation:

1. J. M. M. den Haan, J. Pool, E. Blokland, C. Reinhardus, R. Offringa, E. Goulmy, Department of Immunohematology and Bloodbank, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, The Netherlands.

2. L. M. Meadows, T. L. Bishop, J. Shabanowitz, Department of Chemistry, University of Virginia, Charlottesville, VA 22901, USA.

3. W. Wang and V. H. Engelhard, Department of Microbiology and the Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, VA 22908, USA.

4. D. F. Hunt, Departments of Chemistry and Pathology, University of Virginia, Charlottesville, VA 22901, USA.

Abstract

The minor histocompatibility antigen (mHag) HA-1 is the only known mHag for which mismatching is correlated with the development of severe graft versus host disease (GvHD) after human leukocyte antigen–identical bone marrow transplantation. HA-1 was found to be a nonapeptide derived from an allele of the KIAA0223 gene. The HA-1–negative allelic counterpart encoded by KIAA0223 had one amino acid difference from HA-1. Family analysis with HA-1 allele-specific polymerase chain reaction showed an exact correlation between this allelic polymorphism and the HA-1 phenotype. HA-1 allele typing of donor and recipient should improve donor selection and allow the determination of bone marrow transplantation recipients with high risk for HA-1–induced GvHD development.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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