OSR2
Chr 8odd-skipped related transciption factor 2
OSR2 encodes a transcription factor that is involved in mandibular molar tooth development during the bud stage. Mutations cause isolated tooth agenesis, which follows an autosomal dominant inheritance pattern. The gene shows relatively low constraint against loss-of-function variants, suggesting some tolerance to functional disruption.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Typical tolerance to LoF variation
Mild missense constraint
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
84 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 35 | 0 | 35 |
Likely Pathogenic | 0 | 0 | 0 | 0 | 0 |
VUS | 0 | 26 | 11 | 0 | 37 |
Likely Benign | 0 | 4 | 0 | 1 | 5 |
Benign | 0 | 0 | 0 | 1 | 1 |
| Total | 0 | 30 | 46 | 2 | 78 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
OSR2 · 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 →External Resources
Links to major genomics databases and tools