MHC class I deficiency (MHC1D) is a rare recessive genetic immune disorder endorsed by a partial or complete absence of major histocompatibility complex (MHC) or human leukocyte antigen (HLA) expression. BLS could be grouped as Type I, Type II and Type III based on defective surface MHC expression. The mutations in the TAP subunits are one of the most common features of BLS type I. MHC I deficiency due to tapasin (TAPBP) deficiency was also discovered recently.
Category
Immune system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
04 Diseases of the immune system
Primary immunodeficiencies
4A01 Primary immunodeficiencies due to disorders of adaptive immunity
H00984 MHC class I deficiency