Genetic Variant NM_002609.4:c.3275C>T (chr5-150115809-G-A) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_002609.4(PDGFRB):c.3275C>T(p.Ser1092Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000155 in 1,612,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1092T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

PDGFRB
NM_002609.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 1.73

Publications

5 publications found

Variant links:

COSMIC-nc: COSV53840534

Genes affected

PDGFRB (HGNC:8804): (platelet derived growth factor receptor beta) The protein encoded by this gene is 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 (PDGFB or PDGFD) or a heterodimer (PDGFA and PDGFB). This gene is essential for normal development of the cardiovascular system and aids in rearrangement of the actin cytoskeleton. This gene is flanked on chromosome 5 by the genes for granulocyte-macrophage colony-stimulating factor and macrophage-colony stimulating factor receptor; all three genes may be implicated in the 5-q syndrome. A translocation between chromosomes 5 and 12, that fuses this gene to that of the ETV6 gene, results in chronic myeloproliferative disorder with eosinophilia. [provided by RefSeq, Aug 2017]

PDGFRB Gene-Disease associations (from GenCC):

acroosteolysis-keloid-like lesions-premature aging syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)
myofibromatosis, infantile, 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
skeletal overgrowth-craniofacial dysmorphism-hyperelastic skin-white matter lesions syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
basal ganglia calcification, idiopathic, 4
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
bilateral striopallidodentate calcinosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
infantile myofibromatosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
hereditary progressive mucinous histiocytosis
Inheritance: AD Classification: LIMITED Submitted by: G2P

PDGFRB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09028825).

BP6

Variant 5-150115809-G-A is Benign according to our data. Variant chr5-150115809-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1975317.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0000657 (10/152210) while in subpopulation AFR AF = 0.000121 (5/41462). AF 95% confidence interval is 0.0000474. There are 0 homozygotes in GnomAd4. There are 7 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 10 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002609.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PDGFRB	NM_002609.4	MANE Select	c.3275C>T	p.Ser1092Leu	missense	Exon 23 of 23	NP_002600.1	P09619-1
PDGFRB	NM_001355016.2		c.3083C>T	p.Ser1028Leu	missense	Exon 22 of 22	NP_001341945.1
PDGFRB	NM_001355017.2		c.2792C>T	p.Ser931Leu	missense	Exon 23 of 23	NP_001341946.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PDGFRB	ENST00000261799.9	TSL:1 MANE Select	c.3275C>T	p.Ser1092Leu	missense	Exon 23 of 23	ENSP00000261799.4	P09619-1
PDGFRB	ENST00000520579.5	TSL:1	n.*2589C>T		non_coding_transcript_exon	Exon 23 of 23	ENSP00000430026.1	E5RH16
PDGFRB	ENST00000520579.5	TSL:1	n.*2589C>T		3_prime_UTR	Exon 23 of 23	ENSP00000430026.1	E5RH16

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000242

AC:

AN:

247748

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.000125

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:

0.0000269

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000103

AC:

AN:

1460116

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

726256

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33412

American (AMR)

AF:

0.0000224

AC:

AN:

44626

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26076

East Asian (EAS)

AF:

0.00

AC:

AN:

39656

South Asian (SAS)

AF:

0.00

AC:

AN:

86026

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53360

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5394

European-Non Finnish (NFE)

AF:

0.00000990

AC:

AN:

1111268

Other (OTH)

AF:

0.0000332

AC:

AN:

60298

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152210

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74354

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41462

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000399

Hom.:

Bravo

AF:

0.0000604

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Infantile myofibromatosis;C1866182:Acroosteolysis-keloid-like lesions-premature aging syndrome;C3554321:Basal ganglia calcification, idiopathic, 4;C4225270:Skeletal overgrowth-craniofacial dysmorphism-hyperelastic skin-white matter lesions syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.38

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

Eigen

Benign

-0.53

Eigen_PC

Benign

-0.44

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.76

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.090

MetaSVM

Benign

-0.77

MutationAssessor

Benign

0.95

PhyloP100

1.7

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.56

REVEL

Benign

0.25

Sift

Benign

0.035

Sift4G

Benign

0.37

Polyphen

0.20

Vest4

0.098

MVP

0.35

MPC

0.34

ClinPred

0.089

GERP RS

5.7

Varity_R

0.048

gMVP

0.15

Mutation Taster

=92/8

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over