Genetic Variant PDGFRA:p.Asp423His (chr4-54272423-G-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006206.6(PDGFRA):c.1267G>C(p.Asp423His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. D423N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Consequence

PDGFRA
NM_006206.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.93

Publications

3 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: G2P, Ambry Genetics, Genomics England PanelApp
congenital heart disease
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
isolated cleft palate
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

PDGFRA links:

ENSG00000282278 (HGNC:):

ENSG00000282278 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006206.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PDGFRA	NM_006206.6	MANE Select	c.1267G>C	p.Asp423His	missense	Exon 9 of 23	NP_006197.1	P16234-1
PDGFRA	NM_001347828.2		c.1342G>C	p.Asp448His	missense	Exon 10 of 24	NP_001334757.1
PDGFRA	NM_001347830.2		c.1306G>C	p.Asp436His	missense	Exon 9 of 23	NP_001334759.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PDGFRA	ENST00000257290.10	TSL:1 MANE Select	c.1267G>C	p.Asp423His	missense	Exon 9 of 23	ENSP00000257290.5	P16234-1
ENSG00000282278	ENST00000507166.5	TSL:2	c.1018-2502G>C		intron	N/A	ENSP00000423325.1	A0A0B4J203
PDGFRA	ENST00000509092.5	TSL:1	n.1085G>C		non_coding_transcript_exon	Exon 8 of 15

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251336

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:

0.0000462

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Gastrointestinal stromal tumor (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Uncertain

0.022

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.056

Eigen

Uncertain

0.35

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.86

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.46

MetaSVM

Benign

-0.35

MutationAssessor

Benign

1.8

PhyloP100

2.9

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-0.46

REVEL

Benign

0.28

Sift

Benign

0.050

Sift4G

Benign

0.12

Polyphen

0.94

Vest4

0.56

MutPred

0.21

Gain of sheet (P = 0.0477)

MVP

0.62

MPC

0.44

ClinPred

0.47

GERP RS

6.2

Varity_R

0.096

gMVP

0.45

Mutation Taster

=68/32

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over