NCIt definition : Human RFX5 wild-type allele is located in the vicinity of 1q21.3 and is approximately
7 kb in length. This allele, which encodes DNA-binding protein RFX5, plays a role
in the regulation of class II major histocompatibility gene expression. Mutation of
the gene is associated with type II bare lymphocyte syndrome (MHC class II deficiency),
complementation groups C and E.;