5-150125556-A-G

Variant names:

• chr5-150125556-A-G
• rs1060499542
• NM_002609.4:c.1696T>C
• PDGFRB p.Trp566Arg

GermlineCancer (beta)

Variant summary

Our verdict is Pathogenic.

+14 Pathogenic

-7

-6

-1

0

+5

+6

+9

+10

BenignB

Likely BenignLB

UncertainVUS

Likely PathogenicLP

PathogenicP

The variant received 14 classification points (ACMG Germline Pathogenicity v2019). PS3PM1PM2PP3_ModeratePP5_Strong

The NM_002609.4(PDGFRB):c.1696T>C (p.Trp566Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant is absent from the gnomAD population database at sites with sufficient sequencing coverage. In-silico predictor (REVEL) classifies this variant as likely damaging/oncogenic. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. The affected nucleotide is highly conserved across species (PhyloP 100-way vertebrate score: 9.32). Variant has been reported in ClinVar as Pathogenic/Likely Pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV000484407: It activates PDGFRB signaling in cell culture (gain of function). We sequenced PDGFRB in myofibromatosis cases using the Ion Torrent technology. All variants were confirmed by an alternative method (allele specific PCR or Sanger sequencing). Mutants were functionally characterized in experiments based on cell transfection." and additional evidence is available in ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PDGFRB NM_002609.4 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:8
• Conservation: PhyloP100: 9.32
• Publications: 17 publications found

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: PanelApp Australia, 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: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), PanelApp Australia
• basal ganglia calcification, idiopathic, 4

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Genomics England PanelApp, PanelApp Australia, Labcorp Genetics (formerly Invitae)
• 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
• ocular pterygium-digital keloid dysplasia syndrome

  Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia

Classification according to ACMG Germline Pathogenicity v2019

Classification was made for transcript:

Our verdict: Pathogenic. The variant received 14 points.

Apply	Criterion Code & Title / Strength	Strength	Rationale / Clinical Context
	PS3Functional studies show damaging effect		Well-established functional study supports damaging effect (PS3); SCV000484407: It activates PDGFRB signaling in cell culture (gain of function). We sequenced PDGFRB in myofibromatosis cases using the Ion Torrent technology. All variants were confirmed by an alternative method (allele specific PCR or Sanger sequencing). Mutants were functionally characterized in experiments based on cell transfection.; SCV000590605: Published functional studies demonstrate W566R was constitutively activated in contrast to the unstimulated wild-type receptor and was constitutively phosphorylated on tyrosines in NIH3T3 fibroblasts (PMID: 28334876); SCV002768630: Functional studies on patient cells indicated that the variant constitutively activates the PI3K-AKT pathway (PMID: 30941910).
	PM1Mutational hot spot or critical domain		Missense neighbourhood hotspot (≥2 P/LP within ±8 AA, OR ≥ 5 vs. background) — PM1; In-domain: 0 pathogenic, 0 benign rare missense variants.; ±8 AA neighbourhood: 5 pathogenic, 0 benign (OR vs. background: 55.0).
	PM2Absent/extremely low in population databases		Absent from gnomAD (AD/XL gene) — PM2; Absent from gnomAD at well-covered site (MOI: AD/XL) (threshold 0.0001) — PM2 moderate.
	PP3Computational evidence supports damaging effect		Germline meta computational scorer (REVEL/MetaRNN/BayesDel) predicts damaging effect — moderate evidence (PP3); Splicing verdict: not pathogenic.; Germline computational verdict: pathogenic (Moderate).
	PP5Reputable source reports pathogenic		ClinVar 2-star pathogenic — strong (PP5); ClinVar germline classification: Pathogenic/Likely Pathogenic, 2 star(s).

Variant Effect in Transcripts

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

RefSeq Transcripts

Sel.	Gene / Transcript	Tags	HGVSc / HGVSp	Effect	Exon rank	Protein / UniProt
	PDGFRB NM_002609.4	MANE Select	c.1696T>C p.Trp566Arg	missense	Exon 12 of 23	Prot: NP_002600.1 UniProt:
	PDGFRB NM_001355016.2		c.1504T>C p.Trp502Arg	missense	Exon 11 of 22	Prot: NP_001341945.1
	PDGFRB NM_001355017.2		c.1213T>C p.Trp405Arg	missense	Exon 12 of 23	Prot: NP_001341946.1

PDGFRB NM_002609.4

MANE Select

HGVSc / HGVSpc.1696T>Cp.Trp566Arg

Exon rankExon 12 of 23

missense

Prot: NP_002600.1UniProt: P09619-1

PDGFRB NM_001355016.2

HGVSc / HGVSpc.1504T>Cp.Trp502Arg

Exon rankExon 11 of 22

missense

Prot: NP_001341945.1

PDGFRB NM_001355017.2

HGVSc / HGVSpc.1213T>Cp.Trp405Arg

Exon rankExon 12 of 23

missense

Prot: NP_001341946.1

Ensembl Transcripts

Sel.	Gene / Transcript	Tags	HGVSc / HGVSp	Effect	Exon rank	Protein / UniProt
	PDGFRB ENST00000261799.9	TSL:1MANE Select	c.1696T>C p.Trp566Arg	missense	Exon 12 of 23	Prot: ENSP00000261799.4 UniProt:
	PDGFRB ENST00000520579.5	TSL:1	n.*1010T>C	3_prime_UTR	Exon 12 of 23	Prot: ENSP00000430026.1 UniProt:
	PDGFRB ENST00000520579.5	TSL:1	n.*1010T>C	non_coding_transcript_exon	Exon 12 of 23	Prot: ENSP00000430026.1 UniProt:

PDGFRB ENST00000261799.9

TSL:1MANE Select

HGVSc / HGVSpc.1696T>Cp.Trp566Arg

Exon rankExon 12 of 23

missense

Prot: ENSP00000261799.4UniProt: P09619-1

PDGFRB ENST00000520579.5

TSL:1

HGVSc / HGVSpn.*1010T>C

Exon rankExon 12 of 23

3_prime_UTR

Prot: ENSP00000430026.1UniProt: E5RH16

PDGFRB ENST00000520579.5

TSL:1

HGVSc / HGVSpn.*1010T>C

Exon rankExon 12 of 23

non_coding_transcript_exon

Prot: ENSP00000430026.1UniProt: E5RH16

Frequencies

Allele frequencies (AF), counts (AC/AN), homozygotes and coverage

Common (AF > 0.05 / Hom > 5)

Rare (AF ≤ 0.0001 / Hom ≤ 1)

Source / population	AF	AC	Hom	AN	Coverage
Global population databases 3 sources Large-scale international reference populations
GnomAD3 genomes	AF:	AC:	Hom:	AN:	Cov:32
GnomAD4 exome	AF:	AC:	Hom:	AN:	Cov:31
GnomAD4 genome	AF:	AC:	Hom:	AN:	Cov:32

Showing 3 sources

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Skeletal overgrowth-craniofacial dysmorphism-hyperelastic skin-white matter lesions syndrome (2)
1	-	-	Dandy-Walker syndrome (1)
1	-	-	Hydrocephalus;C4551572:Myofibromatosis, infantile, 1 (1)
1	-	-	Inborn genetic diseases (1)
1	-	-	Infantile myofibromatosis (1)
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)
1	-	-	not provided (1)

Computational Scores

Algorithm	Calibrated pred.	Score	Prediction
AlphaGenome AVI	Pathogenic	28
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.35
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.83	D
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Pathogenic	0.99	D
GPN-Star LLR	N/A	-10
GPN-Star score	N/A	10
LIST_S2	Uncertain	0.92	D
M_CAP	Pathogenic	0.48	D
MetaRNN	Pathogenic	0.92	D
MetaSVM	Pathogenic	1.1	D
Mutation Taster	N/A	8/92	disease causing (ClinVar)
MutationAssessor	Pathogenic	3.3	M
PhyloP100	Pathogenic	9.3
popEVE	Benign	-4.3
PrimateAI	Pathogenic	0.88	D
PROVEAN	Pathogenic	-11	D
REVEL	Pathogenic	0.88
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Varity_R	N/A	0.92
VESM-3B	Benign	-12

Showing 27 of 27 scores

Splicing Scores

Algorithm	Calibrated pred.	Score	Prediction
Pangolin (max)	Benign	0.010
SpliceAI score (max)	Benign	0.030	Details are displayed if max score is > 0.2

Showing 2 of 2 scores

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

MaveDB functional evidence

MaveDB is a public repository of laboratory assays that test the effect of thousands of variants at once — treat this as supporting research data and interpret it with great caution; it is not a clinical classification.

No MaveDB functional evidence found for this variant.

Other links and lift over

dbSNP: rs1060499542;

hg19: chr5-149505119;

ACMG debug oncogenicity

ACGS debug oncogenicity

ACMG debug germline

Submit to ClinVar