rs121912691
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM5PP3_StrongPP5_Very_Strong
The NM_000341.4(SLC3A1):c.1400T>A(p.Met467Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000279 in 1,613,932 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M467T) has been classified as Pathogenic.
Frequency
Consequence
NM_000341.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
SLC3A1 | NM_000341.4 | c.1400T>A | p.Met467Lys | missense_variant | Exon 8 of 10 | ENST00000260649.11 | NP_000332.2 | |
SLC3A1 | XM_011533047.4 | c.1400T>A | p.Met467Lys | missense_variant | Exon 8 of 10 | XP_011531349.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
SLC3A1 | ENST00000260649.11 | c.1400T>A | p.Met467Lys | missense_variant | Exon 8 of 10 | 1 | NM_000341.4 | ENSP00000260649.6 | ||
ENSG00000285542 | ENST00000649044.1 | n.*1411T>A | non_coding_transcript_exon_variant | Exon 13 of 15 | ENSP00000497083.1 | |||||
ENSG00000285542 | ENST00000649044.1 | n.*1411T>A | 3_prime_UTR_variant | Exon 13 of 15 | ENSP00000497083.1 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152198Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000916 AC: 23AN: 251156Hom.: 1 AF XY: 0.000118 AC XY: 16AN XY: 135726
GnomAD4 exome AF: 0.0000287 AC: 42AN: 1461616Hom.: 1 Cov.: 31 AF XY: 0.0000371 AC XY: 27AN XY: 727128
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152316Hom.: 0 Cov.: 32 AF XY: 0.0000268 AC XY: 2AN XY: 74496
ClinVar
Submissions by phenotype
Cystinuria Pathogenic:5
This sequence change replaces methionine, which is neutral and non-polar, with lysine, which is basic and polar, at codon 467 of the SLC3A1 protein (p.Met467Lys). This variant is present in population databases (rs121912691, gnomAD 0.05%). This missense change has been observed in individual(s) with SLC3A1-related conditions (PMID: 8054986, 19782624, 23532419, 28166740; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 18116). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on SLC3A1 protein function. Experimental studies have shown that this missense change affects SLC3A1 function (PMID: 9083097, 18332091). This variant disrupts the p.Met467 amino acid residue in SLC3A1. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8054986, 8792820, 21677404, 23532419). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -
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not provided Pathogenic:2
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SLC3A1-related disorder Pathogenic:1
The SLC3A1 c.1400T>A variant is predicted to result in the amino acid substitution p.Met467Lys. This variant was reported in the compound heterozygous and homozygous states in individuals with cystinuria (Calonge et al. 1994. PubMed ID: 8054986; Alghamdi et al. 2020. PubMed ID: 33262960;). In an in vitro model, the p.Met467Lys change was shown to disrupt membrane trafficking of the rBAT protein (Chillarón et al. 1997. PubMed ID: 9083097). This variant is reported in 0.056% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/2-44539792-T-A). In addition, other missense variants resulting in a different substitution at the same amino acid residue (p.Met467Val, p.Met467Thr, and p.Met467Ile) have also been reported in individuals with cystinuria (Human Gene Mutation Database). Taken together, the c.1400T>A (p.Met467Lys) variant is interpreted as pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at