rs1064794981

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM2PM5PP5_Very_Strong

The NM_003042.4(SLC6A1):​c.1531G>A​(p.Val511Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V511L) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SLC6A1
NM_003042.4 missense

Scores

7
7
5

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 7.84

Publications

7 publications found
Variant links:
Genes affected
SLC6A1 (HGNC:11042): (solute carrier family 6 member 1) The protein encoded by this gene is a gamma-aminobutyric acid (GABA) transporter that localizes to the plasma membrane. The encoded protein removes GABA from the synaptic cleft, restoring it to presynaptic terminals. [provided by RefSeq, Jan 2017]
SLC6A1 Gene-Disease associations (from GenCC):
  • epilepsy with myoclonic atonic seizures
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Illumina, G2P, Labcorp Genetics (formerly Invitae)
  • myoclonic-astatic epilepsy
    Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 12 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr3-11034534-G-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 813786.Status of the report is criteria_provided_single_submitter, 1 stars.
PP5
Variant 3-11034534-G-A is Pathogenic according to our data. Variant chr3-11034534-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 421211.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC6A1NM_003042.4 linkc.1531G>A p.Val511Met missense_variant Exon 15 of 16 ENST00000287766.10 NP_003033.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC6A1ENST00000287766.10 linkc.1531G>A p.Val511Met missense_variant Exon 15 of 16 1 NM_003042.4 ENSP00000287766.4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1453188
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
722832
African (AFR)
AF:
0.00
AC:
0
AN:
33260
American (AMR)
AF:
0.00
AC:
0
AN:
44648
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26018
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39556
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85990
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53220
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5732
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1104718
Other (OTH)
AF:
0.00
AC:
0
AN:
60046
GnomAD4 genome
Cov.:
32
EpiCase
AF:
0.0000546
EpiControl
AF:
0.00

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Jan 30, 2025
Athena Diagnostics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant has not been reported in large, multi-ethnic general populations. (gnomad.broadinstitute.org) This variant has been identified in multiple unrelated individuals with autosomal dominant myoclonic-atonic epilepsy, including apparent de novo cases. Assessment of experimental evidence suggests this variant results in abnormal protein function. (PMID: 34028503, 38781976) -

Jun 14, 2022
Molecular Genetics laboratory, Necker Hospital
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 12, 2023
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Published functional studies demonstrate a damaging effect (Mermer et al., 2021); Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 29315614, 34028503, 34006619, 31440721, 31302675) -

Epilepsy with myoclonic atonic seizures Pathogenic:1
Feb 23, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 511 of the SLC6A1 protein (p.Val511Met). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with clinical features of SLC6A1-related conditions (PMID: 29315614, 31302675; Invitae). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 421211). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SLC6A1 protein function with a negative predictive value of 80%. For these reasons, this variant has been classified as Pathogenic. -

Neurodevelopmental delay Pathogenic:1
-
Centre de Biologie Pathologie Génétique, Centre Hospitalier Universitaire de Lille
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Seizure Pathogenic:1
May 16, 2024
Génétique des Maladies du Développement, Hospices Civils de Lyon
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
34
DANN
Uncertain
1.0
DEOGEN2
Benign
0.28
T;T;T;T;T;.;T;.;T;T;T;T;.;T;T;T;.;T;T;T;.;T;T;T;.
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.89
.;.;.;.;.;.;.;.;.;.;.;.;D;.;.;.;D;.;.;.;D;.;.;D;D
M_CAP
Benign
0.080
D
MetaRNN
Uncertain
0.67
D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
1.9
M;M;M;M;M;.;M;.;M;M;M;M;.;M;M;M;.;M;M;M;.;M;M;M;.
PhyloP100
7.8
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
-2.0
.;N;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
REVEL
Uncertain
0.54
Sift
Uncertain
0.0070
.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Sift4G
Uncertain
0.0080
.;D;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.;.
Polyphen
0.96
D;D;D;D;D;.;D;.;D;D;D;D;.;D;D;D;.;D;D;D;.;D;D;D;.
Vest4
0.58
MutPred
0.46
Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);.;Loss of catalytic residue at V511 (P = 0.0516);.;Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);.;Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);.;Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);.;Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);Loss of catalytic residue at V511 (P = 0.0516);.;
MVP
0.96
MPC
2.0
ClinPred
0.91
D
GERP RS
5.8
Varity_R
0.36
gMVP
0.88
Mutation Taster
=5/95
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs1064794981; hg19: chr3-11076220; COSMIC: COSV55117205; COSMIC: COSV55117205; API