OR1L3

Chr 9

olfactory receptor family 1 subfamily L member 3

The protein functions as an odorant receptor that interacts with odorant molecules in the nose and mediates G protein-coupled signal transduction to initiate neuronal responses for smell perception. No specific diseases have been definitively associated with OR1L3 mutations in the provided data. The predicted mechanism of pathogenicity is dominant negative.

ResearchSummary from RefSeq, UniProt, Mechanism
MultiplemechanismLOEUF 1.91
Clinical SummaryOR1L3
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
Some data sources returned errors (1)

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Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.91LOEUF
pLI 0.000
Z-score -0.53
OE 1.29 (0.631.91)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
-0.56Z-score
OE missense 1.12 (0.991.26)
188 obs / 167.7 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios
LoF OE1.29 (0.631.91)
00.351.4
Missense OE1.12 (0.991.26)
00.61.4
Synonymous OE0.87
01.21.6
LoF obs/exp: 5 / 3.9Missense obs/exp: 188 / 167.7Syn Z: 0.84
DN
0.88top 5%
GOF
0.84top 5%
LOF
0.1598th %ile

This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

DNprediction above median
GOFprediction 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

OR1L3 · 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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