rs143000400

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP7BP4

This summary comes from the ClinGen Evidence Repository: The c.1119T>C p.(Asp373=) variant in UBE3A (NM_130838.2) is present in gnomAD v2.1.1 at a frequency of 0.006% in the European (non-Finnish) sub population (no criteria met). The silent p.(Asp373=) variant is not predicted to affect splicing using multiple computational tools and does not affect a highly conserved nucleotide (BP4, BP7). In summary, the c.1119T>C p.(Asp373=) variant in UBE3A is classified as Likely Benign based on the ACMG/AMP criteria (BP4, BP7). LINK:https://erepo.genome.network/evrepo/ui/classification/CA291608/MONDO:0007113/016

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000087 ( 0 hom. )

Consequence

UBE3A
NM_130839.5 synonymous

Scores

2

Clinical Significance

Likely benign reviewed by expert panel U:1B:4

Conservation

PhyloP100: -0.265

Publications

1 publications found
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]
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]

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ACMG classification

Classification was made for transcript

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

BP4
For more information check the summary or visit ClinGen Evidence Repository.
BP7
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
UBE3ANM_130839.5 linkc.1179T>C p.Asp393Asp synonymous_variant Exon 6 of 13 ENST00000648336.2 NP_570854.1 Q05086-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
UBE3AENST00000648336.2 linkc.1179T>C p.Asp393Asp synonymous_variant Exon 6 of 13 NM_130839.5 ENSP00000497572.2 Q05086-3

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152026
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000279
AC:
7
AN:
251316
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000869
AC:
127
AN:
1461856
Hom.:
0
Cov.:
33
AF XY:
0.0000908
AC XY:
66
AN XY:
727222
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000106
AC:
118
AN:
1111996
Other (OTH)
AF:
0.000149
AC:
9
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
9
18
28
37
46
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152026
Hom.:
0
Cov.:
32
AF XY:
0.0000539
AC XY:
4
AN XY:
74256
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41394
American (AMR)
AF:
0.00
AC:
0
AN:
15250
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10592
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000107
Hom.:
0
Bravo
AF:
0.0000453
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:4
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Angelman syndrome Uncertain:1Benign:2
Jun 30, 2022
ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel
Significance:Likely benign
Review Status:reviewed by expert panel
Collection Method:curation

The c.1119T>C p.(Asp373=) variant in UBE3A (NM_130838.2) is present in gnomAD v2.1.1 at a frequency of 0.006% in the European (non-Finnish) sub population (no criteria met). The silent p.(Asp373=) variant is not predicted to affect splicing using multiple computational tools and does not affect a highly conserved nucleotide (BP4, BP7). In summary, the c.1119T>C p.(Asp373=) variant in UBE3A is classified as Likely Benign based on the ACMG/AMP criteria (BP4, BP7). -

Feb 14, 2014
Baylor Genetics
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

possible diagnosis of Angelman syndrome -

Sep 09, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Jun 22, 2017
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Apr 16, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 25212744) -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
5.5
DANN
Benign
0.69
PhyloP100
-0.27
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8

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

Other links and lift over

dbSNP: rs143000400; hg19: chr15-25616142; API