rs1553620318

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1PM2PM5PP3_StrongPP5

The NM_000551.4(VHL):​c.487C>A​(p.Leu163Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. L163R) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

VHL
NM_000551.4 missense

Scores

10
7
2

Clinical Significance

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

Conservation

PhyloP100: 4.47
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 11 ACMG points.

PM1
In a helix (size 11) in uniprot entity VHL_HUMAN there are 18 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 chr3-10149811-T-G is described in Lovd as [Pathogenic].
PP3
MetaRNN computational evidence supports a deleterious effect, 0.95
PP5
Variant 3-10149810-C-A is Pathogenic according to our data. Variant chr3-10149810-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 1743762.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VHLNM_000551.4 linkc.487C>A p.Leu163Ile missense_variant Exon 3 of 3 ENST00000256474.3 NP_000542.1 P40337-1A0A024R2F2
VHLNM_198156.3 linkc.364C>A p.Leu122Ile missense_variant Exon 2 of 2 NP_937799.1 P40337-2A0A0S2Z4K1
VHLNM_001354723.2 linkc.*41C>A 3_prime_UTR_variant Exon 3 of 3 NP_001341652.1
VHLNR_176335.1 linkn.816C>A non_coding_transcript_exon_variant Exon 4 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VHLENST00000256474.3 linkc.487C>A p.Leu163Ile missense_variant Exon 3 of 3 1 NM_000551.4 ENSP00000256474.3 P40337-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461864
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
Nov 06, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 163 of the VHL protein (p.Leu163Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with VHL-related conditions. ClinVar contains an entry for this variant (Variation ID: 1743762). 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 with a positive predictive value of 95%. This variant disrupts the p.Leu163 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7728151, 15607616, 19270817). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Hereditary cancer-predisposing syndrome Uncertain:1
Jan 07, 2020
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.L163I variant (also known as c.487C>A), located in coding exon 3 of the VHL gene, results from a C to A substitution at nucleotide position 487. The leucine at codon 163 is replaced by isoleucine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.60
BayesDel_addAF
Pathogenic
0.25
D
BayesDel_noAF
Uncertain
0.12
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.87
D;.
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Pathogenic
0.72
D
MetaRNN
Pathogenic
0.95
D;D
MetaSVM
Pathogenic
0.97
D
MutationAssessor
Uncertain
2.5
M;.
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.4
N;N
REVEL
Pathogenic
0.75
Sift
Uncertain
0.0090
.;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
0.99
D;D
Vest4
0.54
MutPred
0.88
Loss of catalytic residue at L163 (P = 0.0019);.;
MVP
1.0
MPC
1.1
ClinPred
0.94
D
GERP RS
4.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.96
gMVP
0.78

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-10191494; API