USP42

Chr 7

ubiquitin specific peptidase 42

Enables cysteine-type deubiquitinase activity. Predicted to be involved in protein deubiquitination; regulation of apoptotic process; and regulation of protein stability. Predicted to be located in nucleoplasm. Predicted to be active in cytosol and nucleus. [provided by Alliance of Genome Resources, Jul 2025]

289
ClinVar variants
16
Pathogenic / LP
1.00
pLI score· haploinsufficient
0
Active trials
Clinical SummaryUSP42
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 1.00). One damaged copy is likely sufficient to cause disease.
📋
ClinVar Variants
16 Pathogenic / Likely Pathogenic· 246 VUS of 289 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.13LOEUF
pLI 1.000
Z-score 6.10
OE 0.04 (0.020.13)
Highly constrained

Among the most LoF-intolerant genes (~top 3%)

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
-1.63Z-score
OE missense 1.16 (1.101.23)
916 obs / 787.2 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.04 (0.020.13)
00.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.1.16 (1.101.23)
00.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.1.25
01.21.6
LoF obs/exp: 2 / 47.2Missense obs/exp: 916 / 787.2Syn Z: -3.61

ClinVar Variant Classifications

289 submitted variants in ClinVar

Classification Summary

Pathogenic15
Likely Pathogenic1
VUS246
Likely Benign27
15
Pathogenic
1
Likely Pathogenic
246
VUS
27
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
15
0
15
Likely Pathogenic
0
0
1
0
1
VUS
0
243
3
0
246
Likely Benign
0
24
0
3
27
Benign
0
0
0
0
0
Total0267193289

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

View in ClinVar →

Protein Context — Lollipop Plot

USP42 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

Clinical Literature
Landmark / reviewRecent case evidence

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →