Combined Immunodeficiency

Gene: PGM3

Green List (high evidence)

Phosphoglucomutase 3 (PGM3) protein catalyzes the conversion of N-acetyl-d-glucosamine-6-phosphate (GlcNAc-6-P) to N-acetyl-d-glucosamine-1-phosphate (GlcNAc-1-P), which is required for the synthesis of uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) an important precursor for protein glycosylation.

Bi-allelic variants in this gene are associated with a primary immunodeficiency syndrome characterised by onset of recurrent infections, usually respiratory or cutaneous, in early childhood. Immune workup usually shows neutropenia, lymphopenia, eosinophilia, and increased serum IgE or IgA. Neutrophil chemotactic defects have also been reported. Infectious agents include bacteria, viruses, and fungi. Many patients develop atopic dermatitis, eczema, and other signs of autoinflammation. Affected individuals may also show developmental delay or cognitive impairment of varying severity.

More than 10 unrelated families reported.

Created: 20 Dec 2020, 2:56 a.m. | Last Modified: 20 Dec 2020, 2:56 a.m.

Panel Version: 0.168

Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal

Phenotypes
Immunodeficiency 23, MIM# 615816; PGM3-CDG, MONDO:0014353

Publications

• 30578875
• 31231132
• 33098103
• 30157810
• 28704707