GIPC3

Chr 19AR

GIPC PDZ domain containing family member 3

Also known as: C19orf64, DFNB15, DFNB72, DFNB95

GIPC3 encodes a protein required for postnatal maturation of hair bundles and long-term survival of hair cells and spiral ganglion in the inner ear. Mutations cause autosomal recessive deafness 15, with inheritance following an autosomal recessive pattern. The gene shows low constraint to loss-of-function variants (pLI 0.009, LOEUF 0.934), consistent with the recessive inheritance pattern observed clinically.

OMIMResearchSummary from RefSeq, OMIM, UniProt
MultiplemechanismARLOEUF 0.931 OMIM phenotype
Clinical SummaryGIPC3
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Gene-Disease Validity (ClinGen)
nonsyndromic genetic hearing loss · ARDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Low constraint (pLI 0.01) — loss-of-function variants are relatively tolerated in the population.
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ClinVar Variants
47 unique Pathogenic / Likely Pathogenic· 123 VUS of 301 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.93LOEUF
pLI 0.009
Z-score 1.73
OE 0.44 (0.230.93)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.18Z-score
OE missense 0.96 (0.851.09)
173 obs / 179.7 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.44 (0.230.93)
00.351.4
Missense OE0.96 (0.851.09)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 5 / 11.3Missense obs/exp: 173 / 179.7Syn Z: -0.08
DN
0.6841th %ile
GOF
0.6540th %ile
LOF
0.3356th %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

301 submitted variants in ClinVar

Classification Summary

Pathogenic32
Likely Pathogenic15
VUS123
Likely Benign92
Benign19
Conflicting16
32
Pathogenic
15
Likely Pathogenic
123
VUS
92
Likely Benign
19
Benign
16
Conflicting

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
8
5
19
0
32
Likely Pathogenic
10
4
1
0
15
VUS
3
103
15
2
123
Likely Benign
1
8
36
47
92
Benign
0
0
18
1
19
Conflicting
16
Total221208950297

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

View in ClinVar →

Protein Context — Lollipop Plot

GIPC3 · 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
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