C1ORF94

Chr 1

chromosome 1 open reading frame 94

This gene encodes a protein of unknown function. Biallelic mutations cause autosomal recessive severe early-onset epileptic encephalopathy with developmental delay and intellectual disability. The gene shows relatively low constraint against loss-of-function variants.

LOEUF 0.59
Clinical SummaryC1ORF94
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.33) despite low pLI — interpret in context.
📋
ClinVar Variants
6 unique Pathogenic / Likely Pathogenic· 9 VUS of 20 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint
0.59LOEUF
pLI 0.009
Z-score 3.07
OE 0.33 (0.190.59)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint
0.25Z-score
OE missense 0.96 (0.881.05)
319 obs / 331.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.33 (0.190.59)
00.351.4
Missense OE0.96 (0.881.05)
00.61.4
Synonymous OE0.93
01.21.6
LoF obs/exp: 8 / 24.4Missense obs/exp: 319 / 331.9Syn Z: 0.69

ClinVar Variant Classifications

20 submitted variants in ClinVar

Classification Summary

Pathogenic5
Likely Pathogenic1
VUS9
Likely Benign2
5
Pathogenic
1
Likely Pathogenic
9
VUS
2
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
5
0
5
Likely Pathogenic
0
0
1
0
1
VUS
0
6
3
0
9
Likely Benign
0
1
0
1
2
Benign
0
0
0
0
0
Total079117

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

View in ClinVar →

Protein Context — Lollipop Plot

C1ORF94 · 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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