rs372561968
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_030777.4(SLC2A10):c.781G>A(p.Val261Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000144 in 1,614,238 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V261A) has been classified as Uncertain significance.
Frequency
Consequence
NM_030777.4 missense
Scores
Clinical Significance
Conservation
Publications
- arterial tortuosity syndromeInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P
- familial thoracic aortic aneurysm and aortic dissectionInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000184 AC: 28AN: 152242Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000876 AC: 22AN: 251104 AF XY: 0.0000958 show subpopulations
GnomAD4 exome AF: 0.000140 AC: 205AN: 1461878Hom.: 0 Cov.: 33 AF XY: 0.000150 AC XY: 109AN XY: 727238 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000184 AC: 28AN: 152360Hom.: 0 Cov.: 33 AF XY: 0.000188 AC XY: 14AN XY: 74500 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Arterial tortuosity syndrome Uncertain:2
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 261 of the SLC2A10 protein (p.Val261Ile). This variant is present in population databases (rs372561968, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with SLC2A10-related conditions. ClinVar contains an entry for this variant (Variation ID: 263879). 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 SLC2A10 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
not specified Uncertain:1
Variant summary: SLC2A10 c.781G>A (p.Val261Ile) results in a conservative amino acid change located in the Major facilitator superfamily domain (IPR020846) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 8.8e-05 in 251104 control chromosomes (gnomAD). This frequency is not significantly higher than estimated for a pathogenic variant in SLC2A10 causing Arterial Tortuosity Syndrome (8.8e-05 vs 0.0016), allowing no conclusion about variant significance. To our knowledge, no occurrence of c.781G>A in individuals affected with Arterial Tortuosity Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Three ClinVar submitters have assessed this variant since 2014: all submitters classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
The p.V261I variant (also known as c.781G>A), located in coding exon 2 of the SLC2A10 gene, results from a G to A substitution at nucleotide position 781. The valine at codon 261 is replaced by isoleucine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
not provided Uncertain:1
Has not been previously published as pathogenic or benign to our knowledge; In silico analysis indicates that this missense variant does not alter protein structure/function -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at