chr22-39225792-G-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_002608.4(PDGFB):​c.657C>A​(p.Pro219=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00282 in 1,614,018 control chromosomes in the GnomAD database, including 111 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. P219P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.015 ( 59 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 52 hom. )

Consequence

PDGFB
NM_002608.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.288
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.63).
BP6
Variant 22-39225792-G-T is Benign according to our data. Variant chr22-39225792-G-T is described in ClinVar as [Benign]. Clinvar id is 777710.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr22-39225792-G-T is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.288 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0518 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PDGFBNM_002608.4 linkuse as main transcriptc.657C>A p.Pro219= synonymous_variant 6/7 ENST00000331163.11
PDGFBNM_033016.3 linkuse as main transcriptc.612C>A p.Pro204= synonymous_variant 6/7
PDGFBXM_047441393.1 linkuse as main transcriptc.564C>A p.Pro188= synonymous_variant 6/7
PDGFBXM_047441394.1 linkuse as main transcriptc.564C>A p.Pro188= synonymous_variant 6/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PDGFBENST00000331163.11 linkuse as main transcriptc.657C>A p.Pro219= synonymous_variant 6/71 NM_002608.4 P1P01127-1
PDGFBENST00000381551.8 linkuse as main transcriptc.612C>A p.Pro204= synonymous_variant 6/75 P01127-2

Frequencies

GnomAD3 genomes
AF:
0.0152
AC:
2309
AN:
152160
Hom.:
58
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0538
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00340
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00956
GnomAD3 exomes
AF:
0.00386
AC:
970
AN:
251272
Hom.:
21
AF XY:
0.00285
AC XY:
387
AN XY:
135824
show subpopulations
Gnomad AFR exome
AF:
0.0541
Gnomad AMR exome
AF:
0.00171
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000194
Gnomad OTH exome
AF:
0.00114
GnomAD4 exome
AF:
0.00153
AC:
2231
AN:
1461740
Hom.:
52
Cov.:
31
AF XY:
0.00124
AC XY:
902
AN XY:
727170
show subpopulations
Gnomad4 AFR exome
AF:
0.0559
Gnomad4 AMR exome
AF:
0.00197
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.000104
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000612
Gnomad4 OTH exome
AF:
0.00306
GnomAD4 genome
AF:
0.0152
AC:
2315
AN:
152278
Hom.:
59
Cov.:
32
AF XY:
0.0148
AC XY:
1101
AN XY:
74436
show subpopulations
Gnomad4 AFR
AF:
0.0537
Gnomad4 AMR
AF:
0.00340
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.0118
Alfa
AF:
0.00807
Hom.:
16
Bravo
AF:
0.0169
Asia WGS
AF:
0.0120
AC:
41
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 26, 2024- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 01, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.63
CADD
Benign
7.1
DANN
Benign
0.71

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

LitVar

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

Other links and lift over

dbSNP: rs35978693; hg19: chr22-39621797; COSMIC: COSV58648093; COSMIC: COSV58648093; API