The minor histocompatibility antigen (mHags), HA-1 is a immunogenic alloantigen shown to be responsible for graft-versus-host disease (GVHD) in HLA-identical bone marrow transplantation. The antigen has two known alleles resulting in a single aa polymorphism. The HA-1H allele encodes histidine, whereas the HA-1R allele encodes arginine.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.