3-10142079-A-G

Position:

• chr3-10142079-A-G

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Very_Strong

The NM_000551.4(VHL):​c.232A>G​(p.Asn78Asp) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N78S) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: VHL NM_000551.4 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4
• Conservation: PhyloP100: 5.72

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 (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PM1: In a strand (size 7) in uniprot entity VHL_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_000551.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr3-10142080-A-G is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.99
• PP5: Variant 3-10142079-A-G is Pathogenic according to our data. Variant chr3-10142079-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 625226.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VHL	NM_000551.4	c.232A>G	p.Asn78Asp	missense_variant	1/3	ENST00000256474.3	NP_000542.1
VHL	NM_001354723.2	c.232A>G	p.Asn78Asp	missense_variant	1/3		NP_001341652.1
VHL	NM_198156.3	c.232A>G	p.Asn78Asp	missense_variant	1/2		NP_937799.1
VHL	NR_176335.1	n.302A>G		non_coding_transcript_exon_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3	c.232A>G	p.Asn78Asp	missense_variant	1/3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Von Hippel-Lindau syndrome Pathogenic:2

Pathogenic, criteria provided, single submitter	clinical testing	Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia	Aug 01, 2018	- -
Likely pathogenic, no assertion criteria provided	clinical testing	Clinical Genomics Labs, University Health Network	Aug 08, 2018	- -

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Apr 12, 2023

For these reasons, this variant has been classified as Pathogenic. This variant disrupts the p.Asn78 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7728151, 8956040, 12114495, 15109448, 15300849, 19464396, 23842656). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt VHL protein function. ClinVar contains an entry for this variant (Variation ID: 625226). This missense change has been observed in individual(s) with von Hippel-Lindau syndrome (PMID: 23224817). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with aspartic acid, which is acidic and polar, at codon 78 of the VHL protein (p.Asn78Asp). -

not provided Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

Jun 30, 2022

Observed in individuals meeting diagnostic criteria of von Hippel-Lindau syndrome and segregated with disease in one family (Cingoz 2013, Lee 2016); Not observed in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 20233476, 24727139, 23842656, 7728151, 12114495, 15300849, 8956040, 15109448, 27439424, 23224817) -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.26	D
BayesDel_noAF	Pathogenic	0.14
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.99	D;.
Eigen	Pathogenic	0.74
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.86	D;T
M_CAP	Pathogenic	1.0	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Uncertain	0.78	D
MutationAssessor	Uncertain	2.6	M;M
PrimateAI	Pathogenic	0.95	D
PROVEAN	Uncertain	-4.2	D;D
REVEL	Pathogenic	0.82
Sift	Pathogenic	0.0	.;D
Sift4G	Uncertain	0.018	D;D
Polyphen		0.99	D;D
Vest4		0.91
MutPred		0.95		Loss of MoRF binding (P = 0.0407);Loss of MoRF binding (P = 0.0407);
MVP		1.0
MPC		1.1
ClinPred		1.0	D
GERP RS		5.4
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.97
gMVP		0.99

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

Other links and lift over

dbSNP: rs869025621; hg19: chr3-10183763; COSMIC: COSV56549825; COSMIC: COSV56549825;