rs878854831

Variant names:

• chr4-54264964-A-G
• rs878854831
• NM_006206.6:c.674A>G

Your query was ambiguous. Multiple possible variants found:

• chr4-54264964-A-G
• chr4-54264964-A-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_006206.6(PDGFRA):​c.674A>G​(p.Tyr225Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,136 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. Y225H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PDGFRA NM_006206.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.18
• Publications: 1 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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.42353365).

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.674A>G	p.Tyr225Cys	missense	Exon 5 of 23	NP_006197.1	P16234-1
	PDGFRA	NM_001347828.2		c.749A>G	p.Tyr250Cys	missense	Exon 6 of 24	NP_001334757.1
	PDGFRA	NM_001347830.2		c.713A>G	p.Tyr238Cys	missense	Exon 5 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.674A>G	p.Tyr225Cys	missense	Exon 5 of 23	ENSP00000257290.5	P16234-1
	PDGFRA	ENST00000508170.5	TSL:1	c.*1008A>G		3_prime_UTR	Exon 4 of 4	ENSP00000425648.1	P16234-2
	ENSG00000282278	ENST00000507166.5	TSL:2	c.1018-9961A>G		intron	N/A	ENSP00000423325.1	A0A0B4J203

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461136 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726946

African (AFR) AF: 0.00 AC: 0 AN: 33458

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

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

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111366

Other (OTH) AF: 0.00 AC: 0 AN: 60356

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Gastrointestinal stromal tumor (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	0.0079	T
BayesDel_noAF	Benign	-0.23
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T
Eigen	Uncertain	0.51
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.92	D
M_CAP	Uncertain	0.10	D
MetaRNN	Benign	0.42	T
MetaSVM	Benign	-0.28	T
MutationAssessor	Benign	1.9	L
PhyloP100		3.2
PrimateAI	Uncertain	0.61	T
PROVEAN	Benign	-0.59	N
REVEL	Benign	0.19
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.0040	D
Polyphen		1.0	D
Vest4		0.43
MutPred		0.39		Gain of methylation at K226 (P = 0.0137)
MVP		0.56
MPC		1.2
ClinPred		0.85	D
GERP RS		5.3
Varity_R		0.18
gMVP		0.89
Mutation Taster		=75/25	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs878854831; hg19: chr4-55131131;