Genetic Variant USP3:p.Glu220Lys (chr15-63562905-G-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_006537.4(USP3):c.658G>A(p.Glu220Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

USP3
NM_006537.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.99

Variant links:

Genes affected

USP3 (HGNC:12626): (ubiquitin specific peptidase 3) Enables histone binding activity and thiol-dependent deubiquitinase. Involved in several processes, including DNA repair; histone deubiquitination; and regulation of protein stability. Located in several cellular components, including Flemming body; cytoplasmic ribonucleoprotein granule; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

USP3 links:

USP3-AS1 (HGNC:44140): (USP3 antisense RNA 1)

USP3-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.748

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USP3	NM_006537.4 link	c.658G>A	p.Glu220Lys	missense_variant	Exon 8 of 15	ENST00000380324.8	NP_006528.2	Q9Y6I4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USP3	ENST00000380324.8 link	c.658G>A	p.Glu220Lys	missense_variant	Exon 8 of 15	1	NM_006537.4	ENSP00000369681.3		Q9Y6I4-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.88e-7

AC:

AN:

1453942

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

722802

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.02e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000113

EpiCase

AF:

0.0000552

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 29, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.658G>A (p.E220K) alteration is located in exon 8 (coding exon 8) of the USP3 gene. This alteration results from a G to A substitution at nucleotide position 658, causing the glutamic acid (E) at amino acid position 220 to be replaced by a lysine (K). 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

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Uncertain

0.024

BayesDel_noAF

Benign

-0.20

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

.;T;T;T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D;D;D;D

M_CAP

Benign

0.032

MetaRNN

Pathogenic

0.75

D;D;D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

.;L;.;.;.

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-2.6

D;D;D;D;D

REVEL

Benign

0.28

Sift

Uncertain

0.0060

D;D;D;D;D

Sift4G

Benign

0.077

T;D;D;T;T

Polyphen

0.99, 1.0

.;D;D;.;.

Vest4

0.74

MutPred

0.69

.;Gain of MoRF binding (P = 0.0124);.;.;.;

MVP

0.22

MPC

1.4

ClinPred

0.98

GERP RS

5.2

Varity_R

0.68

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over