15-25339090-CTTTTTTT-CTTTTT
Variant names:
Variant summary
Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2
The NM_130839.5(UBE3A):c.*45_*46delAA variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000763 in 1,311,464 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 7.6e-7 ( 0 hom. )
Consequence
UBE3A
NM_130839.5 3_prime_UTR
NM_130839.5 3_prime_UTR
Scores
Not classified
Clinical Significance
Not reported in ClinVar
Conservation
PhyloP100: -0.00200
Publications
0 publications found
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: Uncertain_significance. The variant received 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 genomes
Cov.:
32
GnomAD4 exome AF: 7.63e-7 AC: 1AN: 1311464Hom.: 0 AF XY: 0.00000155 AC XY: 1AN XY: 644294 show subpopulations
GnomAD4 exome
AF:
AC:
1
AN:
1311464
Hom.:
AF XY:
AC XY:
1
AN XY:
644294
show subpopulations
African (AFR)
AF:
AC:
0
AN:
28012
American (AMR)
AF:
AC:
0
AN:
20758
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
21570
East Asian (EAS)
AF:
AC:
0
AN:
34136
South Asian (SAS)
AF:
AC:
0
AN:
66814
European-Finnish (FIN)
AF:
AC:
0
AN:
41360
Middle Eastern (MID)
AF:
AC:
0
AN:
3704
European-Non Finnish (NFE)
AF:
AC:
1
AN:
1041098
Other (OTH)
AF:
AC:
0
AN:
54012
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome Cov.: 32
GnomAD4 genome
Cov.:
32
ClinVar
Not reported inComputational scores
Source:
Name
Calibrated prediction
Score
Prediction
PhyloP100
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
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