rs797044999
Variant summary
Our verdict is Pathogenic. Variant got 15 ACMG points: 15P and 0B. PM2PP2PP3_StrongPP5_Very_Strong
The NM_005097.4(LGI1):c.1418C>T(p.Ser473Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. S473S) has been classified as Likely benign.
Frequency
Consequence
NM_005097.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 15 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LGI1 | NM_005097.4 | c.1418C>T | p.Ser473Leu | missense_variant | 8/8 | ENST00000371418.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LGI1 | ENST00000371418.9 | c.1418C>T | p.Ser473Leu | missense_variant | 8/8 | 1 | NM_005097.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461830Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727218
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Autosomal dominant epilepsy with auditory features Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Invitae | Aug 17, 2023 | This variant is not present in population databases (gnomAD no frequency). This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 473 of the LGI1 protein (p.Ser473Leu). This missense change has been observed in individuals with autosomal dominant lateral temporal lobe epilepsy (PMID: 15079010, 19780791). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 208480). 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 LGI1 protein function. Experimental studies have shown that this missense change affects LGI1 function (PMID: 25485908, 27760137). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. - |
Epilepsy, familial temporal lobe, 1 Other:1
not provided, no classification provided | literature only | GeneReviews | - | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at