9-129868228-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_001110303.4(USP20):c.914C>T(p.Ser305Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000093 in 1,613,606 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

USP20
NM_001110303.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.70

Variant links:

Genes affected

USP20 (HGNC:12619): (ubiquitin specific peptidase 20) This gene encodes a ubiquitin specific processing protease that was first identified as a substrate of the VHL (von Hippel-Lindau disease) protein E3 ubiquitin ligase complex. In addition to being ubiquitinated by the VHL-E3 ligase complex, this enzyme deubiquitinates hypoxia-inducible factor (HIF)-1 alpha and thereby causes increased expression of HIF-1alpha targeted genes which play a role in angiogenesis, glucose metabolism, cell proliferation and metastasis. The enzyme encoded by this gene also regulates G-protein coupled receptor signaling by mediating the deubiquitination of beta-2 adrenergic receptor (ADRB2). This enzyme is a ubiquitously expressed thiolester hydrolase. Alternative splicing results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jan 2013]

USP20 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a modified_residue Phosphoserine (size 0) in uniprot entity UBP20_HUMAN

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09300071).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USP20	NM_001110303.4 link	c.914C>T	p.Ser305Leu	missense_variant	Exon 11 of 26	ENST00000372429.8	NP_001103773.2	Q9Y2K6
USP20	NM_001008563.5 link	c.914C>T	p.Ser305Leu	missense_variant	Exon 11 of 26		NP_001008563.2	Q9Y2K6
USP20	NM_006676.8 link	c.914C>T	p.Ser305Leu	missense_variant	Exon 11 of 25		NP_006667.3	Q9Y2K6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USP20	ENST00000372429.8 link	c.914C>T	p.Ser305Leu	missense_variant	Exon 11 of 26	1	NM_001110303.4	ENSP00000361506.3		Q9Y2K6

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152104

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248622

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

134976

show subpopulations

Gnomad AFR exome

AF:

0.000130

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000888

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461502

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727056

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

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:

0.00000270

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152104

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 01, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.914C>T (p.S305L) alteration is located in exon 11 (coding exon 9) of the USP20 gene. This alteration results from a C to T substitution at nucleotide position 914, causing the serine (S) at amino acid position 305 to be replaced by a leucine (L). 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

Benign

0.066

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.68

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.031

T;T;T

Eigen

Benign

-0.78

Eigen_PC

Benign

-0.63

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.61

.;.;T

M_CAP

Benign

0.0084

MetaRNN

Benign

0.093

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.18

N;N;N

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.1

N;N;N

REVEL

Benign

0.10

Sift

Benign

0.077

T;T;T

Sift4G

Benign

0.23

T;T;T

Polyphen

0.088

B;B;B

Vest4

0.34

MutPred

0.46

Loss of phosphorylation at S305 (P = 0.0128);Loss of phosphorylation at S305 (P = 0.0128);Loss of phosphorylation at S305 (P = 0.0128);

MVP

0.32

MPC

0.28

ClinPred

0.063

GERP RS

3.1

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.2

Varity_R

0.050

gMVP

0.16

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

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