OSR2

Chr 8

odd-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.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 0.79
Clinical SummaryOSR2
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.31) despite low pLI — interpret in context.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.79LOEUF
pLI 0.130
Z-score 2.01
OE 0.31 (0.140.79)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.83Z-score
OE missense 0.62 (0.530.72)
115 obs / 185.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.31 (0.140.79)
00.351.4
Missense OE0.62 (0.530.72)
00.61.4
Synonymous OE1.08
01.21.6
LoF obs/exp: 3 / 9.8Missense obs/exp: 115 / 185.2Syn Z: -0.56
DN
0.78top 25%
GOF
0.5563th %ile
LOF
0.55top 25%

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

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

0 submitted variants 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.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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