The genetic cause of<unk>  is due to mutations in any of the following genes: * CIITA is responsible for giving instructions to create a protein that controls transcription of genes (MHC class<unk> , and is located at 16p13.13 (cytogenetic location), * RFX5 has the same function(as prior gene) and is located at 1q21.3(cytogenetic location) * RFXANK(also known as ankyrin repeat-containing regulatory factor X-associated protein) has the same function(as the other genes) and is located at 19p13.11(cytogenetic location) * RFXAP gives information to create RFX associated protein, which also is involved in transcription of MHC class<unk>  genes, and is located at 13q13.3,(cytogenetic location)
Bare lymphocyte syndrome type II
Kasabach–Merritt syndrome
Pitt–Hopkins syndrome
Hypotrichosis–lymphedema–telangiectasia syndrome
Schwartz–Jampel syndrome
EAST syndrome
Rapp–Hodgkin syndrome
Hagemoser–Weinstein–Bresnick syndrome