4-54277450-C-G

Variant names:

• chr4-54277450-C-G
• rs878854825
• NM_006206.6:c.1849C>G

Variant summary

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

The NM_006206.6(PDGFRA):​c.1849C>G​(p.Arg617Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,764 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R617L) 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
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.92
• Publications: 7 publications found

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)

ENSG00000282278 (HGNC:):

ACMG classification

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PDGFRA	NM_006206.6	MANE Select	c.1849C>G	p.Arg617Gly	missense	Exon 13 of 23	NP_006197.1	P16234-1
	PDGFRA	NM_001347828.2		c.1924C>G	p.Arg642Gly	missense	Exon 14 of 24	NP_001334757.1
	PDGFRA	NM_001347830.2		c.1888C>G	p.Arg630Gly	missense	Exon 13 of 23	NP_001334759.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PDGFRA	ENST00000257290.10	TSL:1 MANE Select	c.1849C>G	p.Arg617Gly	missense	Exon 13 of 23	ENSP00000257290.5	P16234-1
	ENSG00000282278	ENST00000507166.5	TSL:2	c.1129C>G	p.Arg377Gly	missense	Exon 14 of 24	ENSP00000423325.1	A0A0B4J203
	PDGFRA	ENST00000507536.1	TSL:1	n.275C>G		non_coding_transcript_exon	Exon 1 of 5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251436 AF XY: 0.00

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461764 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727200

African (AFR) AF: 0.00 AC: 0 AN: 33472

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: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111898

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.23
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	0.070
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.59	D
Eigen	Benign	0.047
Eigen_PC	Benign	0.063
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.94	D
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.66	D
MetaSVM	Uncertain	0.38	D
MutationAssessor	Benign	0.44	N
PhyloP100		4.9
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-2.0	N
REVEL	Pathogenic	0.65
Sift	Uncertain	0.013	D
Sift4G	Benign	0.11	T
Polyphen		1.0	D
Vest4		0.63
MutPred		0.47		Loss of solvent accessibility (P = 0.0159)
MVP		0.83
MPC		1.2
ClinPred		0.88	D
GERP RS		3.9
Varity_R		0.58
gMVP		0.83
Mutation Taster		=22/78	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

Other links and lift over

dbSNP: rs878854825; hg19: chr4-55143617;