rs568721384
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_006206.6(PDGFRA):c.2998C>G(p.Leu1000Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,614,086 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_006206.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
PDGFRA | ENST00000257290.10 | c.2998C>G | p.Leu1000Val | missense_variant | Exon 22 of 23 | 1 | NM_006206.6 | ENSP00000257290.5 | ||
ENSG00000282278 | ENST00000507166.5 | c.2278C>G | p.Leu760Val | missense_variant | Exon 23 of 24 | 2 | ENSP00000423325.1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152222Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000278 AC: 7AN: 251386Hom.: 0 AF XY: 0.0000294 AC XY: 4AN XY: 135856
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461748Hom.: 0 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 727208
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152338Hom.: 0 Cov.: 33 AF XY: 0.0000268 AC XY: 2AN XY: 74492
ClinVar
Submissions by phenotype
not provided Uncertain:2
In silico analysis supports that this missense variant does not alter protein structure/function; In silico analysis suggests this variant may impact gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: Dillon2016[article]) -
BP4 -
Polyps, multiple and recurrent inflammatory fibroid, gastrointestinal Uncertain:1
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PDGFRA-related disorder Uncertain:1
The PDGFRA c.2998C>G variant is predicted to result in the amino acid substitution p.Leu1000Val. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.014% of alleles in individuals of Latino descent in gnomAD (http://gnomad.broadinstitute.org/variant/4-55156597-C-G). It is interpreted as uncertain significance in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/568217/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Gastrointestinal stromal tumor Uncertain:1
This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1000 of the PDGFRA protein (p.Leu1000Val). This variant is present in population databases (rs568721384, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PDGFRA-related conditions. ClinVar contains an entry for this variant (Variation ID: 568217). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at