DEFB109B
Chr 8defensin beta 109B
Also known as: DEF109P1B, DEFB-109, DEFB109, DEFB109P1B, HBD9
Predicted to enable CCR6 chemokine receptor binding activity and chemoattractant activity. Predicted to be involved in cell chemotaxis and defense response to bacterium. Predicted to be located in extracellular region. Predicted to be active in extracellular space. [provided by Alliance of Genome Resources, Jul 2025]
Population Genetics & Constraint
Constraint data not available from gnomAD.
The highest-scoring mechanism for this gene is dominant-negative.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
100 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories· variant type breakdown unavailable
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | — | — | — | — | 37 |
Likely Pathogenic | — | — | — | — | 0 |
VUS | — | — | — | — | 0 |
Likely Benign | — | — | — | — | 0 |
Benign | — | — | — | — | 63 |
| Total | — | 100 | |||
Counts from ClinVar esearch · Updated hourly
View in ClinVar →DEFB109B · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →No open access results found
External Resources
Links to major genomics databases and tools