rs1213891703
Variant summary
Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM1PM2PP2
The NM_001370259.2(MEN1):c.869A>T(p.Glu290Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,446 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. E290A) has been classified as Uncertain significance.
Frequency
Consequence
NM_001370259.2 missense
Scores
Clinical Significance
Conservation
Publications
- multiple endocrine neoplasia type 1Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P, ClinGen, Orphanet, Ambry Genetics
- familial isolated hyperparathyroidismInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- pituitary gigantismInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary pheochromocytoma-paragangliomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Uncertain_significance. The variant received 5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MEN1 | NM_001370259.2 | c.869A>T | p.Glu290Val | missense_variant | Exon 6 of 10 | ENST00000450708.7 | NP_001357188.2 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461446Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1AN XY: 727036 show subpopulations
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Multiple endocrine neoplasia, type 1 Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 290 of the MEN1 protein (p.Glu290Val). 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: 643563). 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 80%. 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
The p.E290V variant (also known as c.869A>T), located in coding exon 5 of the MEN1 gene, results from an A to T substitution at nucleotide position 869. The glutamic acid at codon 290 is replaced by valine, an amino acid with dissimilar properties. This variant was reported in individual(s) with features consistent with multiple endocrine neoplasia type 1 (Romanet P et al. Hum Mutat, 2019 Jun;40:661-674; Ambry internal data). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at