UBE2G2

Chr 21

ubiquitin conjugating enzyme E2 G2

Also known as: UBC7

UBE2G2 encodes an E2 ubiquitin-conjugating enzyme that accepts ubiquitin from E1 enzymes and catalyzes its covalent attachment to target proteins, particularly facilitating endoplasmic reticulum-associated degradation (ERAD) pathways. Mutations cause autosomal recessive intellectual disability with early-onset seizures and developmental delays. The gene shows relatively low constraint to loss-of-function variation, consistent with recessive inheritance patterns.

Summary from RefSeq, UniProt
Research Assistant →
0
Active trials
6
Pubs (1 yr)
93
P/LP submissions
0%
P/LP missense
0.86
LOEUF
Multiple*
Mechanism· predicted
Clinical SummaryUBE2G2
Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.33) despite low pLI — interpret in context.
📋
ClinVar Variants
88 unique Pathogenic / Likely Pathogenic· 33 VUS of 125 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.86LOEUF
pLI 0.099
Z-score 1.85
OE 0.33 (0.150.86)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
1.80Z-score
OE missense 0.49 (0.390.62)
48 obs / 98.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.33 (0.150.86)
00.351.4
Missense OE0.49 (0.390.62)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 3 / 9.0Missense obs/exp: 48 / 98.2Syn Z: -0.04
DN
0.6938th %ile
GOF
0.73top 25%
LOF
0.2582th %ile

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

GOFprediction above median
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

125 submitted variants in ClinVar

Classification Summary

Pathogenic84
Likely Pathogenic4
VUS33
Conflicting1
84
Pathogenic
4
Likely Pathogenic
33
VUS
1
Conflicting

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
84
0
84
Likely Pathogenic
0
0
4
0
4
VUS
0
16
17
0
33
Likely Benign
0
0
0
0
0
Benign
0
0
0
0
0
Conflicting
1
Total0161050122

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

View in ClinVar →

Protein Context — Lollipop Plot

UBE2G2 · 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.

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Clinical Literature
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