rs386833806
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1_StrongPM2PP5_Very_Strong
The NM_003982.4(SLC7A7):c.1387del(p.Val463CysfsTer56) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,716 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. V463V) has been classified as Likely benign.
Frequency
Consequence
NM_003982.4 frameshift
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/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SLC7A7 | NM_003982.4 | c.1387del | p.Val463CysfsTer56 | frameshift_variant | 9/10 | ENST00000674313.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SLC7A7 | ENST00000674313.1 | c.1387del | p.Val463CysfsTer56 | frameshift_variant | 9/10 | NM_003982.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000795 AC: 2AN: 251434Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135894
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461716Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1AN XY: 727176
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Lysinuric protein intolerance Pathogenic:5
Pathogenic, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Jun 12, 2023 | Variant summary: SLC7A7 c.1387delG (p.Val463CysfsX56) causes a frameshift which results in an extension of the protein. The variant allele was found at a frequency of 8e-06 in 251434 control chromosomes (gnomAD). c.1387delG has been reported in the literature in compound heterozygous individuals affected with Lysinuric Protein Intolerance (e.g. Shoji_2002, Zhang_2017, Yu_2021). These data indicate that the variant is likely to be associated with disease. The following publications have been ascertained in the context of this evaluation (PMID: 12402335, 34589056, 29058386). Two clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and classified the variant as pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. - |
Pathogenic, no assertion criteria provided | clinical testing | Natera, Inc. | Sep 16, 2020 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Aug 24, 2023 | This sequence change results in a frameshift in the SLC7A7 gene (p.Val463Cysfs*56). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 49 amino acid(s) of the SLC7A7 protein and extend the protein by 6 additional amino acid residues. This variant is present in population databases (rs386833806, gnomAD 0.01%). This frameshift has been observed in individual(s) with lysinuric protein intolerance (PMID: 12402335). This variant is also known as c.1673delG. ClinVar contains an entry for this variant (Variation ID: 56358). This variant disrupts a region of the SLC7A7 protein in which other variant(s) (p.Cys487Leufs*32) have been determined to be pathogenic (PMID: 10655553; Invitae). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. - |
Likely pathogenic, no assertion criteria provided | literature only | Juha Muilu Group; Institute for Molecular Medicine Finland (FIMM) | - | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Baylor Genetics | May 06, 2023 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at