Genetic Variant NM_006206.6:c.437C>A (chr4-54263736-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006206.6(PDGFRA):c.437C>A(p.Ala146Asp) 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. 14/22 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. A146P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Consequence

PDGFRA
NM_006206.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.29

Publications

4 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 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16843295).

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.437C>A	p.Ala146Asp	missense	Exon 4 of 23	NP_006197.1	P16234-1
PDGFRA	NM_001347828.2		c.512C>A	p.Ala171Asp	missense	Exon 5 of 24	NP_001334757.1
PDGFRA	NM_001347830.2		c.476C>A	p.Ala159Asp	missense	Exon 4 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.437C>A	p.Ala146Asp	missense	Exon 4 of 23	ENSP00000257290.5	P16234-1
PDGFRA	ENST00000508170.5	TSL:1	c.437C>A	p.Ala146Asp	missense	Exon 4 of 4	ENSP00000425648.1	P16234-2
ENSG00000282278	ENST00000507166.5	TSL:2	c.1018-11189C>A		intron	N/A	ENSP00000423325.1	A0A0B4J203

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Gastrointestinal stromal tumor (1)

Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.45

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

Eigen

Benign

-0.39

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.82

M_CAP

Benign

0.019

MetaRNN

Benign

0.17

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

PhyloP100

1.3

PrimateAI

Benign

0.39

PROVEAN

Benign

-1.6

REVEL

Benign

0.12

Sift

Benign

0.30

Sift4G

Benign

0.59

Polyphen

0.034

Vest4

0.50

MutPred

0.55

Gain of sheet (P = 0.0477)

MVP

0.48

MPC

0.53

ClinPred

0.13

GERP RS

3.3

Varity_R

0.31

gMVP

0.93

Mutation Taster

=71/29

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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