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

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PDGFRA
NM_006206.6 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.00500

Publications

0 publications found
Variant links:
Genes affected
PDGFRA (HGNC:8803): (platelet derived growth factor receptor alpha) This gene encodes a cell surface tyrosine kinase receptor for members of the platelet-derived growth factor family. These growth factors are mitogens for cells of mesenchymal origin. The identity of the growth factor bound to a receptor monomer determines whether the functional receptor is a homodimer or a heterodimer, composed of both platelet-derived growth factor receptor alpha and beta polypeptides. Studies suggest that this gene plays a role in organ development, wound healing, and tumor progression. Mutations in this gene have been associated with idiopathic hypereosinophilic syndrome, somatic and familial gastrointestinal stromal tumors, and a variety of other cancers. [provided by RefSeq, Mar 2012]
PDGFRA Gene-Disease associations (from GenCC):
  • gastrointestinal stromal tumor
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
  • polyps, multiple and recurrent inflammatory fibroid, gastrointestinal
    Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Genomics England PanelApp, Ambry Genetics, G2P
  • congenital heart disease
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen
  • isolated cleft palate
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.35810316).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PDGFRANM_006206.6 linkc.1848C>G p.Ser616Arg missense_variant Exon 13 of 23 ENST00000257290.10 NP_006197.1 P16234-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PDGFRAENST00000257290.10 linkc.1848C>G p.Ser616Arg missense_variant Exon 13 of 23 1 NM_006206.6 ENSP00000257290.5 P16234-1
ENSG00000282278ENST00000507166.5 linkc.1128C>G p.Ser376Arg missense_variant Exon 14 of 24 2 ENSP00000423325.1 A0A0B4J203

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251434
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461734
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727178
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33474
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111874
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Feb 16, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

Apr 07, 2023
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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
Jan 07, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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
Aug 29, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
.;D
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.72
D
LIST_S2
Uncertain
0.90
D;T
M_CAP
Benign
0.078
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Benign
-0.45
T
MutationAssessor
Benign
0.46
.;N
PhyloP100
0.0050
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-2.2
N;D
REVEL
Uncertain
0.59
Sift
Benign
0.24
T;D
Sift4G
Benign
0.23
T;T
Polyphen
1.0
.;D
Vest4
0.48
MutPred
0.49
.;Gain of MoRF binding (P = 0.0113);
MVP
0.78
MPC
1.1
ClinPred
0.42
T
GERP RS
2.9
Varity_R
0.49
gMVP
0.87
Mutation Taster
=21/79
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs780111998; hg19: chr4-55143616; API