chr15-25371359-T-C

Position:

chr15-25371359-T-C

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BS1BS2BP4

This summary comes from the ClinGen Evidence Repository: The allele frequency of the p.Asn272Ser variant in UBE3A is 0.013% in European (Non-Finnish) sub population in gnomAD, which is high enough to be classified as likely benign based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BS1). The p.Asn272Ser variant is observed in at least 4 unaffected individuals (internal database) (BS2). Computational analysis prediction tools suggest that the p.Asn272Ser variant does not have a deleterious impact; however this information does not predict clinical significance on its own (BP4). In summary, the p.Asn272Ser variant in UBE3A is classified as benign based on the ACMG/AMP criteria (BS1, BS2, BP4). LINK:https://erepo.genome.network/evrepo/ui/classification/CA333443/MONDO:0007113/016

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000099 ( 0 hom. )

Consequence

UBE3A
NM_130839.5 missense

Scores

Clinical Significance

Benign reviewed by expert panel U:3B:5

Conservation

PhyloP100: 6.21

Variant links:

Genes affected

UBE3A (HGNC:12496): (ubiquitin protein ligase E3A) This gene encodes an E3 ubiquitin-protein ligase, part of the ubiquitin protein degradation system. This imprinted gene is maternally expressed in brain and biallelically expressed in other tissues. Maternally inherited deletion of this gene causes Angelman Syndrome, characterized by severe motor and intellectual retardation, ataxia, hypotonia, epilepsy, absence of speech, and characteristic facies. The protein also interacts with the E6 protein of human papillomavirus types 16 and 18, resulting in ubiquitination and proteolysis of tumor protein p53. Alternative splicing of this gene results in three transcript variants encoding three isoforms with different N-termini. Additional transcript variants have been described, but their full length nature has not been determined. [provided by RefSeq, Jul 2008]

UBE3A links:

SNHG14 (HGNC:37462): (small nucleolar RNA host gene 14) This gene is located within the Prader-Willi critical region and produces a long, spliced paternally-imprinted RNA that initiates within a common upstream promoter region shared by the SNRPN (small nuclear ribonucleoprotein polypeptide N) and SNURF genes. This transcript serves as a host RNA for the small nucleolar RNA, C/D box 115 and 116 clusters. This RNA extends in antisense into the region of the ubiquitin protein ligase E3A gene (UBE3A), and is thought to regulate imprinted expression of UBE3A in the brain. This transcript undergoes extensive alternative splicing, and may initiate and terminate at multiple locations within this genomic region. The full-length structure of all splice forms is not determined. [provided by RefSeq, Mar 2017]

SNHG14 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BS1

For more information check the summary or visit ClinGen Evidence Repository.

BS2

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UBE3A	NM_130839.5 link	c.815A>G	p.Asn272Ser	missense_variant	6/13	ENST00000648336.2	NP_570854.1	Q05086-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UBE3A	ENST00000648336.2 link	c.815A>G	p.Asn272Ser	missense_variant	6/13		NM_130839.5	ENSP00000497572.2		Q05086-3

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000103

AC:

AN:

251344

Hom.:

AF XY:

0.000110

AC XY:

AN XY:

135838

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000992

AC:

145

AN:

1461786

Hom.:

Cov.:

AF XY:

0.0000935

AC XY:

AN XY:

727188

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.0000765

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000103

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.0000985

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74486

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000136

Hom.:

Bravo

AF:

0.000166

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000581

AC:

ExAC

AF:

0.000173

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Uncertain:3Benign:5

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Angelman syndrome

Uncertain:3Benign:2

Uncertain significance, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Feb 08, 2013	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 28, 2025	- -
Uncertain significance, no assertion criteria provided	clinical testing	Baylor Genetics	Feb 14, 2014	possible diagnosis of Angelman syndrome -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Oct 31, 2018	- -
Benign, reviewed by expert panel	curation	ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel	Aug 25, 2022	The allele frequency of the p.Asn272Ser variant in UBE3A is 0.013% in European (Non-Finnish) sub population in gnomAD, which is high enough to be classified as likely benign based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BS1). The p.Asn272Ser variant is observed in at least 4 unaffected individuals (internal database) (BS2). Computational analysis prediction tools suggest that the p.Asn272Ser variant does not have a deleterious impact; however this information does not predict clinical significance on its own (BP4). In summary, the p.Asn272Ser variant in UBE3A is classified as benign based on the ACMG/AMP criteria (BS1, BS2, BP4). -

Inborn genetic diseases

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 02, 2022

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Nov 07, 2019

- -

UBE3A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 22, 2020

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.62

CADD

Benign

DANN

Benign

0.88

DEOGEN2

Benign

0.15

.;.;.;.;.;.;.;.;.;T;.;.;.;T;T

Eigen

Benign

0.0028

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.77

.;.;.;T;.;.;.;T;.;.;.;.;T;T;T

M_CAP

Benign

0.015

MetaRNN

Benign

0.072

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

.;.;.;.;.;.;.;.;.;L;.;.;.;L;.

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-1.2

.;.;.;.;N;.;.;.;.;.;.;N;N;N;.

REVEL

Benign

0.086

Sift

Benign

0.75

.;.;.;.;T;.;.;.;.;.;.;T;T;T;.

Sift4G

Benign

0.75

.;.;.;.;.;T;.;.;.;.;.;.;.;T;.

Polyphen

0.57, 0.10

.;P;.;.;.;P;.;P;.;B;.;.;.;B;.

Vest4

0.14, 0.17, 0.12, 0.15, 0.12, 0.12, 0.15, 0.13

MVP

0.53

MPC

0.73

ClinPred

0.061

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.090

gMVP

0.21

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