rs1553904190
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate
The NM_006206.6(PDGFRA):c.1431C>G(p.His477Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict 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. H477N) has been classified as Uncertain significance.
Frequency
Consequence
NM_006206.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PDGFRA | NM_006206.6 | c.1431C>G | p.His477Gln | missense_variant | 10/23 | ENST00000257290.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PDGFRA | ENST00000257290.10 | c.1431C>G | p.His477Gln | missense_variant | 10/23 | 1 | NM_006206.6 | P1 | |
PDGFRA | ENST00000509092.5 | n.1249C>G | non_coding_transcript_exon_variant | 9/15 | 1 | ||||
PDGFRA | ENST00000509490.5 | c.1431C>G | p.His477Gln | missense_variant, NMD_transcript_variant | 10/18 | 1 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD4 exome Cov.: 32
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
Gastrointestinal stromal tumor Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Nov 28, 2023 | This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 477 of the PDGFRA protein (p.His477Gln). This variant is not present in population databases (gnomAD no frequency). 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: 1023059). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 26, 2021 | The p.H477Q variant (also known as c.1431C>G), located in coding exon 9 of the PDGFRA gene, results from a C to G substitution at nucleotide position 1431. The histidine at codon 477 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. 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