rs781469947

chr4-54274519-CTT-C

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP6_Moderate BS2

The NM_006206.6(PDGFRA):c.1559-11_1559-10del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000043 in 1,603,818 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000053 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000042 (1 hom.)
• Consequence: PDGFRA NM_006206.6 splice_polypyrimidine_tract, intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.239

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]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP6: Variant 4-54274519-CTT-C is Benign according to our data. Variant chr4-54274519-CTT-C is described in ClinVar as [Likely_benign]. Clinvar id is 414482.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS2: High AC in GnomAd at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PDGFRA	NM_006206.6	c.1559-11_1559-10del		splice_polypyrimidine_tract_variant, intron_variant		ENST00000257290.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PDGFRA	ENST00000257290.10	c.1559-11_1559-10del		splice_polypyrimidine_tract_variant, intron_variant		1	NM_006206.6	P1
PDGFRA	ENST00000509490.5	c.1559-11_1559-10del		splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant		1
PDGFRA	ENST00000509092.5	n.1377-11_1377-10del		splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152178 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000262

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000718 AC: 18 AN: 250632 Hom.: 0 AF XY: 0.0000738 AC XY: 10 AN XY: 135472

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.000318

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000265

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000420 AC: 61 AN: 1451522 Hom.: 1 AF XY: 0.0000360 AC XY: 26 AN XY: 723006

Gnomad4 AFR exome AF: 0.0000901

Gnomad4 AMR exome AF: 0.000537

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000349

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000272

Gnomad4 OTH exome AF: 0.0000167

GnomAD4 genome AF: 0.0000525 AC: 8 AN: 152296 Hom.: 0 Cov.: 32 AF XY: 0.0000671 AC XY: 5 AN XY: 74476

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000831

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Gastrointestinal stromal tumor Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 30, 2024

- -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.25		Details are displayed if max score is > 0.2
DS_AL_spliceai		0.25		Position offset: 12

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

Publications

LitVar

Other links and lift over

dbSNP: rs781469947; hg19: chr4-55140686;