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Any autosomal agammaglobulinemia in which the cause of the disease is a mutation in the CD79B gene.
Features include always present findings: Diarrhea, Decreased circulating total IgM, Chronic sinusitis, and Decreased total B cell count and others. 13 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Lungs and breathing | 2 | Recurrent bronchitis, Recurrent pneumonia |
CD79B encodes CD79b molecule (229 aa). Required in cooperation with CD79A for initiation of the signal transduction cascade activated by the B-cell antigen receptor complex (BCR) which leads to internalization of the complex, trafficking to late endosomes and antigen presentation. Highest expression in Spleen (261.4 TPM) and Cells EBV-transformed lymphocytes (230.3 TPM).
Agammaglobulinemia 6, autosomal recessive is caused by mutations in the CD79B gene on chromosome 17.
The CD79B protein participates in Signaling by the B Cell Receptor (BCR) and Antigen activates B Cell Receptor (BCR) leading to generation of second messengers pathways.
CD79B is classified as a druggable target (Clinically Actionable, Druggable Genome, External Side Of Plasma Membrane, and Kinase categories) with score 26.1.
Genetic testing for CD79B is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 11 always present features.
No clinical trials have been registered for agammaglobulinemia 6, autosomal recessive.
10 publications have been identified in PubMed for agammaglobulinemia 6, autosomal recessive. Research spans Case Report / Case Series (70%), Epidemiology / Natural History (20%), and Review / Meta-Analysis (10%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 7 | 70% |
Data assembled from 6 of 12 sources · Last updated Sep 18, 2026, 9:45 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Common questions about agammaglobulinemia 6, autosomal recessive
1 |
Diarrhea |
Eyes | 1 | Conjunctivitis |
Blood and immune system | 1 | Recurrent bacterial infections |
Ears | 1 | Recurrent otitis media |
Disease patterns and progression
2 |
20% |
Research summaries | 1 | 10% |
Hlongwa L (2026). [PMID: 41692833](https://pubmed.ncbi.nlm.nih.gov/41692833/). *Sci Rep*. [Epidemiology / Natural History]
Justiz Vaillant AA (2026). [PMID: 29763203](https://pubmed.ncbi.nlm.nih.gov/29763203/). *Unknown Journal*. [Review / Meta-Analysis]
Kose H (2025). [PMID: 40546005](https://pubmed.ncbi.nlm.nih.gov/40546005/). *Iranian journal of immunology : IJI*. [Case Report / Case Series]
Razaghian A (2025). [PMID: 41266270](https://pubmed.ncbi.nlm.nih.gov/41266270/). *Iranian journal of allergy, asthma, and immunology*. [Case Report / Case Series]
Özdemiral C (2025). [PMID: 40862510](https://pubmed.ncbi.nlm.nih.gov/40862510/). *Journal of medical virology*. [Epidemiology / Natural History]
Syed Iqbaluddin J (2024). [PMID: 39044864](https://pubmed.ncbi.nlm.nih.gov/39044864/). *Cureus*. [Case Report / Case Series]
Yu L (2024). [PMID: 38805163](https://pubmed.ncbi.nlm.nih.gov/38805163/). *Journal of clinical immunology*. [Case Report / Case Series]
Sil A (2024). [PMID: 39215847](https://pubmed.ncbi.nlm.nih.gov/39215847/). *J Clin Immunol*. [Case Report / Case Series]
Tekcan D (2024). [PMID: 39607724](https://pubmed.ncbi.nlm.nih.gov/39607724/). *Pediatric allergy, immunology, and pulmonology*. [Case Report / Case Series]
Naiboğlu S (2024). [PMID: 39549297](https://pubmed.ncbi.nlm.nih.gov/39549297/). *Iranian journal of allergy, asthma, and immunology*. [Case Report / Case Series]