GPR107

Chr 9

G protein-coupled receptor 107

Also known as: GCDRP, LUSTR1, bA138E2.2

The GPR107 protein functions as a receptor for neuronostatin and is involved in glucose homeostasis by inducing glucagon release in response to low glucose levels, while also participating in clathrin-dependent endocytosis. Mutations cause an autosomal dominant neurodevelopmental disorder through a dominant-negative mechanism. The gene shows intolerance to loss-of-function variants (LOEUF 0.42), consistent with the dominant-negative pathogenic mechanism.

OMIMResearchSummary from RefSeq, UniProt, Mechanism
DNmechanismLOEUF 0.42
Clinical SummaryGPR107
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.23) despite low pLI — interpret in context.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint
0.42LOEUF
pLI 0.289
Z-score 4.17
OE 0.23 (0.140.42)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint
1.82Z-score
OE missense 0.71 (0.630.79)
219 obs / 309.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.23 (0.140.42)
00.351.4
Missense OE0.71 (0.630.79)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 8 / 34.4Missense obs/exp: 219 / 309.3Syn Z: -0.13
DN
0.6743th %ile
GOF
0.6151th %ile
LOF
0.3744th %ile

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

GPR107 · 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.

Search ClinicalTrials.gov →
Clinical Literature
Open Research Assistant →