rs1555164143
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP2PP3_Moderate
The NM_001370259.2(MEN1):c.1337G>A(p.Arg446His) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,648 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R446C) has been classified as Uncertain significance.
Frequency
Consequence
NM_001370259.2 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MEN1 | NM_001370259.2 | c.1337G>A | p.Arg446His | missense_variant | 9/10 | ENST00000450708.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MEN1 | ENST00000450708.7 | c.1337G>A | p.Arg446His | missense_variant | 9/10 | 5 | NM_001370259.2 | P3 |
Frequencies
GnomAD3 genomes ? Cov.: 34
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461648Hom.: 0 Cov.: 43 AF XY: 0.00 AC XY: 0AN XY: 727124
GnomAD4 genome ? Cov.: 34
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Nov 01, 2023 | This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 446 of the MEN1 protein (p.Arg446His). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with MEN1-related conditions. ClinVar contains an entry for this variant (Variation ID: 527253). 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%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 07, 2022 | The p.R446H variant (also known as c.1337G>A), located in coding exon 8 of the MEN1 gene, results from a G to A substitution at nucleotide position 1337. The arginine at codon 446 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at