Variant chr22-39225716-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_002608.4(PDGFB):c.*7C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000344 in 1,612,800 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00035 ( 1 hom. )

Consequence

PDGFB
NM_002608.4 3_prime_UTR

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.381

Variant links:

Genes affected

PDGFB (HGNC:8800): (platelet derived growth factor subunit B) This gene encodes a member of the protein family comprised of both platelet-derived growth factors (PDGF) and vascular endothelial growth factors (VEGF). The encoded preproprotein is proteolytically processed to generate platelet-derived growth factor subunit B, which can homodimerize, or alternatively, heterodimerize with the related platelet-derived growth factor subunit A. These proteins bind and activate PDGF receptor tyrosine kinases, which play a role in a wide range of developmental processes. Mutations in this gene are associated with meningioma. Reciprocal translocations between chromosomes 22 and 17, at sites where this gene and that for collagen type 1, alpha 1 are located, are associated with dermatofibrosarcoma protuberans, a rare skin tumor. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2015]

PDGFB links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

BP6

Variant 22-39225716-G-A is Benign according to our data. Variant chr22-39225716-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3048695.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000256 (39/152272) while in subpopulation NFE AF= 0.000529 (36/68018). AF 95% confidence interval is 0.000392. There are 0 homozygotes in gnomad4. There are 10 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 39 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	MANE
PDGFB	NM_002608.4 linkuse as main transcript	c.*7C>T	3_prime_UTR_variant	6/7	ENST00000331163.11
PDGFB	NM_033016.3 linkuse as main transcript	c.*7C>T	3_prime_UTR_variant	6/7
PDGFB	XM_047441393.1 linkuse as main transcript	c.*7C>T	3_prime_UTR_variant	6/7
PDGFB	XM_047441394.1 linkuse as main transcript	c.*7C>T	3_prime_UTR_variant	6/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PDGFB	ENST00000331163.11 linkuse as main transcript	c.*7C>T		3_prime_UTR_variant	6/7	1	NM_002608.4	P1	P01127-1
PDGFB	ENST00000381551.8 linkuse as main transcript	c.*7C>T		3_prime_UTR_variant	6/7	5			P01127-2

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152154

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.000529

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000199

AC:

AN:

250650

Hom.:

AF XY:

0.000177

AC XY:

AN XY:

135494

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000203

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000353

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000353

AC:

515

AN:

1460528

Hom.:

Cov.:

AF XY:

0.000355

AC XY:

258

AN XY:

726490

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000269

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000433

Gnomad4 OTH exome

AF:

0.000298

GnomAD4 genome

AF:

0.000256

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.0000482

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000529

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000357

Hom.:

Bravo

AF:

0.000261

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PDGFB-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Nov 21, 2022

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

DANN

Benign

0.89

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over