chr5-150121305-G-T

Variant names:

• chr5-150121305-G-T
• rs1320275282
• NM_002609.4:c.2362C>A
• PDGFRB p.Arg788Arg

GermlineCancer (beta)

Variant summary

Our verdict is Likely benign.

-2 Likely Benign

-7

-6

-1

0

+5

+6

+9

+10

BenignB

Likely BenignLB

UncertainVUS

Likely PathogenicLP

PathogenicP

The variant received -2 classification points (ACGS-UK Somatic Oncogenicity v2025). O3_ModerateB4_Strong

The NM_002609.4(PDGFRB):c.2362C>A (p.Arg788Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The gene PDGFRB is a known oncogene (CancerMine: 11 oncogene, 19 driver citations). The gene PDGFRB is a cancer driver gene (CancerMine: 11 oncogene, 19 driver citations). The variant is absent from the gnomAD population database at sites with sufficient sequencing coverage. In-silico predictor (BayesDel (noAF)) classifies this variant as likely benign. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. The variant has been observed in cBioPortal in 1 sample across 1 study and 1 cancer type; somatic enrichment level: NONE (Observed in at most one deduplicated cBioPortal case.).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: PDGFRB NM_002609.4 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.73
• Publications: 2 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 ACGS-UK Somatic Oncogenicity v2025

Classification was made for transcript:

Our verdict: Likely_benign. The variant received -2 points.

Apply	Criterion Code & Title / Strength	Strength	Rationale / Clinical Context
	O3Absent or very rare in population		Absent or extremely rare in gnomAD (AC ≤ 2) — O3 moderate; GnomAD: AF = absent, AC = 0 — absent/extremely rare (O3 moderate [+2])
	B4Synonymous/intronic, no splicing impact		Synonymous/intronic variant with confirmed no splicing impact (B4 strong); Synonymous variant — splicing algorithms confirm no impact on splicing (B4 strong [-4])

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.2362C>A p.Arg788Arg	synonymous	Exon 17 of 23	Prot: NP_002600.1 UniProt:
	PDGFRB NM_001355016.2		c.2170C>A p.Arg724Arg	synonymous	Exon 16 of 22	Prot: NP_001341945.1
	PDGFRB NM_001355017.2		c.1879C>A p.Arg627Arg	synonymous	Exon 17 of 23	Prot: NP_001341946.1

PDGFRB NM_002609.4

MANE Select

HGVSc / HGVSpc.2362C>Ap.Arg788Arg

Exon rankExon 17 of 23

synonymous

Prot: NP_002600.1UniProt: P09619-1

PDGFRB NM_001355016.2

HGVSc / HGVSpc.2170C>Ap.Arg724Arg

Exon rankExon 16 of 22

synonymous

Prot: NP_001341945.1

PDGFRB NM_001355017.2

HGVSc / HGVSpc.1879C>Ap.Arg627Arg

Exon rankExon 17 of 23

synonymous

Prot: NP_001341946.1

Ensembl Transcripts

Sel.	Gene / Transcript	Tags	HGVSc / HGVSp	Effect	Exon rank	Protein / UniProt
	PDGFRB ENST00000261799.9	TSL:1MANE Select	c.2362C>A p.Arg788Arg	synonymous	Exon 17 of 23	Prot: ENSP00000261799.4 UniProt:
	PDGFRB ENST00000520579.5	TSL:1	n.*1676C>A	3_prime_UTR	Exon 17 of 23	Prot: ENSP00000430026.1 UniProt:
	PDGFRB ENST00000520579.5	TSL:1	n.*1676C>A	non_coding_transcript_exon	Exon 17 of 23	Prot: ENSP00000430026.1 UniProt:

PDGFRB ENST00000261799.9

TSL:1MANE Select

HGVSc / HGVSpc.2362C>Ap.Arg788Arg

Exon rankExon 17 of 23

synonymous

Prot: ENSP00000261799.4UniProt: P09619-1

PDGFRB ENST00000520579.5

TSL:1

HGVSc / HGVSpn.*1676C>A

Exon rankExon 17 of 23

3_prime_UTR

Prot: ENSP00000430026.1UniProt: E5RH16

PDGFRB ENST00000520579.5

TSL:1

HGVSc / HGVSpn.*1676C>A

Exon rankExon 17 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 5 sources Large-scale international reference populations
GnomAD3 genomes	AF:	AC:	Hom:	AN:	Cov:32
GnomAD4 exome Warning	AF: 0.00	AC:0	Hom:0	AN:1421036	Cov:27
GnomAD4 genome	AF:	AC:	Hom:	AN:	Cov:32
TOPMed (Bravo)	AF: 0.00000378	AC:1	Hom:0	AN:264690	Cov:
ALFA (dbGaP/dbSNP Allele Frequency Aggregator)	AF: 0.00	AC:0	Hom:0	AN:16840	Cov:

Showing 5 sources

ClinVar

Not reported in ClinVar

Computational Scores

Algorithm	Calibrated pred.	Score	Prediction
AlphaGenome AVI	Uncertain	18
BayesDel_noAF	Benign	-0.79
CADD	Benign	7.6
DANN	Benign	0.54
GPN-Star LLR	N/A	-3.1
GPN-Star score	N/A	3.1
PhyloP100	Benign	2.7

Showing 7 of 7 scores

Splicing Scores

Algorithm	Calibrated pred.	Score	Prediction
Pangolin (max)	Benign	0.010
SpliceAI score (max)	Benign	0.0	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: rs1320275282;

hg19: chr5-149500868;

COSMIC: COSV55810779;

COSMIC: COSV55810779;

ACMG debug oncogenicity

ACGS debug oncogenicity

ACMG debug germline

Submit to ClinVar