rs863224810
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP2PP3_StrongPP5
The NM_001370259.2(MEN1):c.1354C>T(p.Arg452Trp) variant causes a missense change. The variant allele was found at a frequency of 0.00000188 in 1,596,730 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).
Frequency
Consequence
NM_001370259.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MEN1 | NM_001370259.2 | c.1354C>T | p.Arg452Trp | missense_variant | Exon 10 of 10 | ENST00000450708.7 | NP_001357188.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.00000138 AC: 2AN: 1444518Hom.: 0 Cov.: 45 AF XY: 0.00 AC XY: 0AN XY: 718700
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152212Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74360
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Pathogenic:2Uncertain:1Other:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 452 of the MEN1 protein (p.Arg452Trp). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with multiple endocrine neoplasia type 1 (PMID: 29036195; Invitae). ClinVar contains an entry for this variant (Variation ID: 216815). 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 MEN1 protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -
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Variant interpreted as Likely pathogenic and reported on 08-18-2020 by Lab Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -
not provided Pathogenic:1
The MEN1 c.1354C>T; p.Arg452Trp variant (rs863224810) is reported in individuals affected with familial multiple endocrine neoplasia, type 1 (Pardi 2017, ARUP internal data). This variant is also reported in ClinVar (Variation ID: 216815), but is absent from the Genome Aggregation Database, indicating it is not a common polymorphism. Computational analyses predict that this variant is deleterious (REVEL: 0.961). Based on available information, this variant is considered to be likely pathogenic. References: Pardi E et al. Mutational and large deletion study of genes implicated in hereditary forms of primary hyperparathyroidism and correlation with clinical features. PLoS One. 2017 Oct 16;12(10):e0186485. PMID: 29036195. -
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.R452W variant (also known as c.1354C>T) is located in coding exon 9 of the MEN1 gene. This alteration results from a C to T substitution at nucleotide position 1354. The arginine at codon 452 is replaced by tryptophan, an amino acid with dissimilar properties. This alteration has been reported in multiple families with clinical features of MEN1 (Pardi E et al. PLoS ONE 2017 Oct;12(10):e0186485; Ambry internal data). Structural analysis demonstrates that the total energy of p.R452W is considerably higher compared to the native structure, implying a possible underlying damaging effect on protein structure, potentially affecting protein stability and function (Shi A et al. Blood, 2012 Nov;120:4461-9; Ambry internal data). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the majority of available evidence to date, this variant is likely to be pathogenic. -
Hereditary breast ovarian cancer syndrome Pathogenic:1
According to the ACMG SVI adaptation criteria we chose these criteria: PS4 (medium pathogenic): This alteration has been reported in multiple families with clinical features of MEN1 (Pardi E et al. PLoS ONE 2017 Oct;12(10):e0186485; Ambry internal data). , PM2 (supporting pathogenic): 1x in gnomAD v3.1.2 (non-cancer), PP3 (strong pathogenic): REVEL-Score 0.961 (pathogenic strong), Varsome: META-Score (20) pathogenic -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at