Genetic Variant USP42:p.Ile396Val (chr7-6146202-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_032172.3(USP42):c.1186A>G(p.Ile396Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,604,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

USP42
NM_032172.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.09

Publications

0 publications found

Variant links:

Genes affected

USP42 (HGNC:20068): (ubiquitin specific peptidase 42) Enables thiol-dependent deubiquitinase. Involved in protein deubiquitination. Predicted to be located in nucleoplasm. Predicted to be active in cytosol and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

USP42 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21969199).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USP42	NM_032172.3 link	c.1186A>G	p.Ile396Val	missense_variant	Exon 11 of 18	ENST00000306177.10	NP_115548.1	Q9H9J4-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USP42	ENST00000306177.10 link	c.1186A>G	p.Ile396Val	missense_variant	Exon 11 of 18	5	NM_032172.3	ENSP00000301962.5		Q9H9J4-2

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000127

AC:

AN:

235830

AF XY:

0.0000235

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000923

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000620

AC:

AN:

1452544

Hom.:

Cov.:

AF XY:

0.00000693

AC XY:

AN XY:

721732

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33226

American (AMR)

AF:

0.000139

AC:

AN:

43114

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25864

East Asian (EAS)

AF:

0.00

AC:

AN:

39594

South Asian (SAS)

AF:

0.0000119

AC:

AN:

83742

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53020

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1108166

Other (OTH)

AF:

0.00

AC:

AN:

60062

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000001), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.353

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74472

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41570

American (AMR)

AF:

0.000654

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.510

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000169

Hom.:

Bravo

AF:

0.000189

ESP6500AA

AF:

0.000269

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00000828

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 21, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1186A>G (p.I396V) alteration is located in exon 11 (coding exon 10) of the USP42 gene. This alteration results from a A to G substitution at nucleotide position 1186, causing the isoleucine (I) at amino acid position 396 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.37

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0035

.;T;T

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.72

T;T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.22

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.54

N;.;.

PhyloP100

7.1

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-0.55

N;N;N

REVEL

Benign

0.16

Sift

Benign

0.094

T;T;T

Sift4G

Benign

0.25

T;T;T

Polyphen

0.71

P;.;.

Vest4

0.35

MVP

0.29

MPC

2.0

ClinPred

0.47

GERP RS

5.7

gMVP

0.18

Mutation Taster

=66/34

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

7-6146202-A-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over