rs104895300
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PM5PP3_ModeratePP5_Very_Strong
The NM_000431.4(MVK):c.500C>T(p.Pro167Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000889 in 1,461,888 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P167Q) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000431.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MVK | NM_000431.4 | c.500C>T | p.Pro167Leu | missense_variant | 5/11 | ENST00000228510.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MVK | ENST00000228510.8 | c.500C>T | p.Pro167Leu | missense_variant | 5/11 | 1 | NM_000431.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 exomes AF: 0.00000796 AC: 2AN: 251380Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135894
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461888Hom.: 0 Cov.: 32 AF XY: 0.0000110 AC XY: 8AN XY: 727246
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
not provided Pathogenic:3
Pathogenic, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, University Medical Center Utrecht | - | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Dec 23, 2016 | The P167L likely pathogenic variant, also reported as P165L, in the MVK gene has been observed previously in patients with Hyper IgD syndrome including in both the homozygous and compound heterozygous states (Simon et al., 2004; de Wolff et al., 2009; Cuisset et al., 2001; Drenth et al., 1999). It was not observed at any significant frequency in approximately 6,500 individuals of European and African American ancestry by the NHLBI Exome Sequencing Project. P167L is a semi-conservative amino acid substitution, which may impact secondary protein structure as these residues differ in some properties. Although this substitution occurs at a position that is not conserved, in silico analysis predicts this variant is probably damaging to the protein structure/function. Additionally, missense variants in nearby residues (P165L, N166I, G171R) have been reported in the Human Gene Mutation Database in association with MVK-related disorders (Stenson et al., 2014), supporting the functional importance of this region of the protein. Therefore, this variant is likely pathogenic; however, the possibility that it is benign cannot be excluded. - |
Pathogenic, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Hyperimmunoglobulin D with periodic fever Pathogenic:1Other:1
not provided, no classification provided | literature only | Unité médicale des maladies autoinflammatoires, CHRU Montpellier | - | - - |
Pathogenic, no assertion criteria provided | literature only | OMIM | Apr 01, 2001 | - - |
Hyperimmunoglobulin D with periodic fever;C1867981:Porokeratosis 3, disseminated superficial actinic type;C1959626:Mevalonic aciduria Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Aug 10, 2023 | For these reasons, this variant has been classified as Pathogenic. 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 MVK protein function. ClinVar contains an entry for this variant (Variation ID: 39725). This missense change has been observed in individual(s) with hyper IgD syndrome (PMID: 10369262, 11313769). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. This variant is present in population databases (rs104895300, gnomAD 0.01%). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 167 of the MVK protein (p.Pro167Leu). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at