rs780111998
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_006206.6(PDGFRA):c.1848C>G(p.Ser616Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,734 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S616N) has been classified as Uncertain significance.
Frequency
Consequence
NM_006206.6 missense
Scores
Clinical Significance
Conservation
Publications
- gastrointestinal stromal tumorInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
- polyps, multiple and recurrent inflammatory fibroid, gastrointestinalInheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Ambry Genetics, G2P
- congenital heart diseaseInheritance: AD Classification: LIMITED Submitted by: ClinGen
- isolated cleft palateInheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Uncertain_significance. The variant received 1 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PDGFRA | ENST00000257290.10 | c.1848C>G | p.Ser616Arg | missense_variant | Exon 13 of 23 | 1 | NM_006206.6 | ENSP00000257290.5 | ||
| ENSG00000282278 | ENST00000507166.5 | c.1128C>G | p.Ser376Arg | missense_variant | Exon 14 of 24 | 2 | ENSP00000423325.1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251434 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461734Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 727178 show subpopulations
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
not provided Uncertain:2
The PDGFRA c.1848C>G; p.Ser616Arg variant (rs780111998), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 407377). This variant is only found on one allele in the Genome Aggregation Database, indicating it is not a common polymorphism. Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.594). Due to limited information, the clinical significance of this variant is uncertain at this time. -
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Gastrointestinal stromal tumor Uncertain:1
This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 616 of the PDGFRA protein (p.Ser616Arg). This variant is present in population databases (rs780111998, gnomAD 0.0009%). This missense change has been observed in individual(s) with orofacial clefts (PMID: 37350193). ClinVar contains an entry for this variant (Variation ID: 407377). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PDGFRA protein function with a negative predictive value of 80%. 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 Uncertain:1
The p.S616R variant (also known as c.1848C>G), located in coding exon 12 of the PDGFRA gene, results from a C to G substitution at nucleotide position 1848. The serine at codon 616 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at