3-36992565-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014805.4(EPM2AIP1):​c.513C>A​(p.Asp171Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,912 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. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

EPM2AIP1
NM_014805.4 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0210
Variant links:
Genes affected
EPM2AIP1 (HGNC:19735): (EPM2A interacting protein 1) The EPM2A gene, which encodes laforin, is mutated in an autosomal recessive form of adolescent progressive myoclonus epilepsy. The protein encoded by this gene binds to laforin, but its function is not known. This gene is intronless. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0625875).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EPM2AIP1NM_014805.4 linkuse as main transcriptc.513C>A p.Asp171Glu missense_variant 1/1 ENST00000322716.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EPM2AIP1ENST00000322716.8 linkuse as main transcriptc.513C>A p.Asp171Glu missense_variant 1/1 NM_014805.4 P1
EPM2AIP1ENST00000623924.1 linkuse as main transcriptc.63+313C>A intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152212
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000265
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
249160
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135176
show subpopulations
Gnomad AFR exome
AF:
0.000129
Gnomad AMR exome
AF:
0.0000290
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461700
Hom.:
0
Cov.:
34
AF XY:
0.00000413
AC XY:
3
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.0000671
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152212
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.000265
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000491
ExAC
AF:
0.00000827
AC:
1

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 17, 2023The c.513C>A (p.D171E) alteration is located in exon 1 (coding exon 1) of the EPM2AIP1 gene. This alteration results from a C to A substitution at nucleotide position 513, causing the aspartic acid (D) at amino acid position 171 to be replaced by a glutamic acid (E). 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
0.11
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
5.4
DANN
Uncertain
0.97
DEOGEN2
Benign
0.0067
T
Eigen
Benign
-0.72
Eigen_PC
Benign
-0.56
FATHMM_MKL
Benign
0.21
N
LIST_S2
Benign
0.37
T
M_CAP
Benign
0.0052
T
MetaRNN
Benign
0.063
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
0.81
L
MutationTaster
Benign
0.96
N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
0.0
N
REVEL
Benign
0.057
Sift
Benign
0.26
T
Sift4G
Benign
0.88
T
Polyphen
0.066
B
Vest4
0.042
MutPred
0.63
Gain of ubiquitination at K173 (P = 0.0817);
MVP
0.31
MPC
0.52
ClinPred
0.015
T
GERP RS
4.4
Varity_R
0.059
gMVP
0.22

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: rs779288621; hg19: chr3-37034056; API