Genetic Variant VHL:n.42A>G (chr3-10141843-A-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The ENST00000477538.2(VHL):n.42A>G variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000145 in 1,382,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

VHL
ENST00000477538.2 non_coding_transcript_exon

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.391

Publications

0 publications found

Variant links:

Genes affected

VHL (HGNC:12687): (von Hippel-Lindau tumor suppressor) This gene encodes a component of a ubiquitination complex. The encoded protein is involved in the ubiquitination and degradation of hypoxia-inducible-factor (HIF), which is a transcription factor that plays a central role in the regulation of gene expression by oxygen. In addition to oxygen-related gene expression, this protein plays a role in many other cellular processes including cilia formation, cytokine signaling, regulation of senescence, and formation of the extracellular matrix. Variants of this gene are associated with von Hippel-Lindau syndrome, pheochromocytoma, erythrocytosis, renal cell carcinoma, and cerebellar hemangioblastoma. [provided by RefSeq, Jun 2022]

VHL Gene-Disease associations (from GenCC):

pheochromocytoma
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
von Hippel-Lindau disease
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Orphanet
renal cell carcinoma
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
autosomal recessive secondary polycythemia not associated with VHL gene
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics
Chuvash polycythemia
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
hereditary pheochromocytoma-paraganglioma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

VHL links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.74).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
VHL	NM_000551.4 link	c.-5A>G	5_prime_UTR_variant	Exon 1 of 3	ENST00000256474.3	NP_000542.1	P40337-1A0A024R2F2
VHL	NR_176335.1 link	n.66A>G	non_coding_transcript_exon_variant	Exon 1 of 4
VHL	NM_001354723.2 link	c.-5A>G	5_prime_UTR_variant	Exon 1 of 3		NP_001341652.1
VHL	NM_198156.3 link	c.-5A>G	5_prime_UTR_variant	Exon 1 of 2		NP_937799.1	P40337-2A0A0S2Z4K1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3 link	c.-5A>G		5_prime_UTR_variant	Exon 1 of 3	1	NM_000551.4	ENSP00000256474.3		P40337-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000145

AC:

AN:

1382758

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

680832

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30732

American (AMR)

AF:

0.00

AC:

AN:

33288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24452

East Asian (EAS)

AF:

0.00

AC:

AN:

35318

South Asian (SAS)

AF:

0.00

AC:

AN:

77908

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47708

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4016

European-Non Finnish (NFE)

AF:

0.00000187

AC:

AN:

1072266

Other (OTH)

AF:

0.00

AC:

AN:

57070

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.74

CADD

Benign

(source)

DANN

Benign

0.54

PhyloP100

0.39

PromoterAI

-0.062

Neutral

(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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over