rs114056442

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_130839.5(UBE3A):​c.1185A>T​(p.Glu395Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,862 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. E395E) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

UBE3A
NM_130839.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0140
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the UBE3A gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 44 curated pathogenic missense variants (we use a threshold of 10). The gene has 8 curated benign missense variants. Trascript score misZ: 6.9443 (above the threshold of 3.09). GenCC associations: The gene is linked to Angelman syndrome.
BP4
Computational evidence support a benign effect (MetaRNN=0.07539797).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
UBE3ANM_130839.5 linkc.1185A>T p.Glu395Asp missense_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.1185A>T p.Glu395Asp missense_variant Exon 6 of 13 NM_130839.5 ENSP00000497572.2 Q05086-3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251298
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135806
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461862
Hom.:
0
Cov.:
33
AF XY:
0.00000275
AC XY:
2
AN XY:
727228
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:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jul 21, 2015
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.061
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
12
DANN
Benign
0.96
DEOGEN2
Benign
0.15
.;.;.;.;.;.;.;.;.;T;.;.;.;T;T
Eigen
Benign
-0.77
Eigen_PC
Benign
-0.59
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.94
.;.;.;D;.;.;.;D;.;.;.;.;D;D;D
M_CAP
Benign
0.0084
T
MetaRNN
Benign
0.075
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.38
.;.;.;.;.;.;.;.;.;N;.;.;.;N;.
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-0.97
.;.;.;.;N;.;.;.;.;.;.;N;N;N;.
REVEL
Benign
0.20
Sift
Benign
0.35
.;.;.;.;T;.;.;.;.;.;.;T;T;T;.
Sift4G
Benign
0.65
.;.;.;.;.;T;.;.;.;.;.;.;.;T;.
Polyphen
0.0030, 0.0
.;B;.;.;.;B;.;B;.;B;.;.;.;B;.
Vest4
0.077, 0.082, 0.090, 0.088, 0.086, 0.074, 0.087, 0.075
MutPred
0.34
.;.;.;.;.;.;.;.;.;Loss of solvent accessibility (P = 0.4653);.;.;.;Loss of solvent accessibility (P = 0.4653);.;
MVP
0.49
MPC
0.83
ClinPred
0.043
T
GERP RS
-0.77
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.055
gMVP
0.23

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.

Other links and lift over

dbSNP: rs114056442; hg19: chr15-25616136; API