Combined Immunodeficiency
Gene: RFX5
Bare lymphocyte syndrome, type II, complementation group C
9 individuals from 8 unrelated families; multiple mouse models
Homozygous and Compound heterozygous (Nonsense, missense, splice site, single bp del) variants were reported resulting in truncated protein and loss of function.
All individuals presented with recurrent lower respiratory tract infection early in life, low CD4+ cells and/or failure to thrive, chronic diarrhoea, hepatosplenomegaly and low Ig levels.
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Bare lymphocyte syndrome, type II, complementation group E
2 siblings (twins) reported with RPX5 variants and new BLS group E phenotype; multiple functional studies
Identified homozygous missense variant (R149Q) which resulted in altered DNA-binding domain and loss of function.
These histo-identical twin brothers had normal numbers of CD4 + cells and are able to mount both cellular and humoral immune responses. They displayed absence of MHC class II surface expression on B cells and mononuclear cells.
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Green-Bare lymphocyte syndrome, type II, complementation group C
Red- Bare lymphocyte syndrome, type II, complementation group ECreated: 26 Aug 2021, 12:23 a.m. | Last Modified: 26 Aug 2021, 12:23 a.m.
Panel Version: 0.378
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Phenotypes
Bare lymphocyte syndrome, type II, complementation group C MIM# 209920; Bare lymphocyte syndrome, type II, complementation group E MIM# 209920
Publications
Gene: rfx5 has been classified as Green List (High Evidence).
Phenotypes for gene: RFX5 were changed from to Bare lymphocyte syndrome, type II, complementation group C MIM# 209920; Bare lymphocyte syndrome, type II, complementation group E MIM# 209920
Publications for gene: RFX5 were set to
Mode of inheritance for gene: RFX5 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
gene: RFX5 was added gene: RFX5 was added to Combined immunodeficiency_MelbourneGenomics_AustralianGenomics_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services,Melbourne Genomics Health Alliance Immunology Flagship Mode of inheritance for gene: RFX5 was set to Unknown