NCIt synonyms : Major Histocompatibility Complex, Class II, DR Beta 5 wt Allele; Human Leucocyte Antigen DRB5; Human Leukocyte Antigen DRB5; HLA-DRB5*; Major Histocompatibility Complex, Class II, DR Beta-5 Gene;
NCIt definition : Human HLA-DRB5 wild-type allele is located in the vicinity of 6p21.3 and is approximately
13 kb in length. This allele, which encodes HLA class II histocompatibility antigen,
DRB5 beta chain protein, is involved in the modulation both of antigen presentation
and the immune response. The gene is polymorphic and typing is often performed to
determine histocompatibility for hematopoietic stem cell transplantation.;
NCIt note : The HLA-DRB5 gene is expressed as multiple isoforms that determine the HLA-DR51 antigen
serotype. The gene product is a beta subunit for the HLA-DR complex.;