OSR1

Chr 2

odd-skipped related transcription factor 1

Also known as: ODD

Enables sequence-specific double-stranded DNA binding activity. Involved in negative regulation of transporter activity; positive regulation of gastrulation; and pronephros development. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2025]

0
Active trials
20
Pathogenic / LP
65
ClinVar variants
6
Pubs (1 yr)
1.7
Missense Z
0.46
LOEUF
Clinical SummaryOSR1
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Gene-Disease Validity (ClinGen)
congenital heart disease · ADDisputed

Disputed — evidence questions this relationship

Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.86) — some intolerance to loss-of-function variants.
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ClinVar Variants
20 Pathogenic / Likely Pathogenic· 37 VUS of 65 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.46LOEUF
pLI 0.863
Z-score 2.36
OE 0.00 (0.000.46)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
1.74Z-score
OE missense 0.62 (0.530.73)
101 obs / 163.5 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.00 (0.000.46)
00.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.62 (0.530.73)
00.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.0.96
01.21.6
LoF obs/exp: 0 / 6.5Missense obs/exp: 101 / 163.5Syn Z: 0.31
DN
0.4884th %ile
GOF
0.3094th %ile
LOF
0.83top 5%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.46

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

65 submitted variants in ClinVar

Classification Summary

Pathogenic20
VUS37
Likely Benign5
Benign3
20
Pathogenic
37
VUS
5
Likely Benign
3
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
20
0
20
Likely Pathogenic
0
0
0
0
0
VUS
0
33
4
0
37
Likely Benign
0
0
1
4
5
Benign
0
0
2
1
3
Total03327565

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

OSR1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
Landmark / reviewRecent case evidence