rs1064794981
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM2PP2PP5_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 (★★).
Frequency
Consequence
NM_003042.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SLC6A1 | NM_003042.4 | c.1531G>A | p.Val511Met | missense_variant | Exon 15 of 16 | ENST00000287766.10 | NP_003033.3 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0AN: 1453188Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0AN XY: 722832
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
not provided Pathogenic:3
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) -
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) -
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Epilepsy with myoclonic atonic seizures Pathogenic:1
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
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Seizure Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at