NM_005591.4:c.1852A>G
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_005591.4(MRE11):c.1852A>G(p.Met618Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000323 in 1,610,774 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. M618T) has been classified as Uncertain significance.
Frequency
Consequence
NM_005591.4 missense
Scores
Clinical Significance
Conservation
Publications
- ataxia-telangiectasia-like disorder 1Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics
- breast cancerInheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
- familial ovarian cancerInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- hereditary breast carcinomaInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
- prostate cancerInheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MRE11 | NM_005591.4 | c.1852A>G | p.Met618Val | missense_variant | Exon 16 of 20 | ENST00000323929.8 | NP_005582.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152224Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000797 AC: 2AN: 251074 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.0000302 AC: 44AN: 1458550Hom.: 0 Cov.: 29 AF XY: 0.0000331 AC XY: 24AN XY: 725906 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152224Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74370 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
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Ataxia-telangiectasia-like disorder 1 Uncertain:1
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not provided Uncertain:1
The frequency of this variant in the general population, 0.000023 (3/128832 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. In the published literature, the variant has been reported in an individual with breast cancer (PMID: 24894818 (2014)). In a large-scale breast cancer association study, the variant was observed in individuals with breast cancer as well as in unaffected individuals (PMID: 33471991 (2021), see also LOVD (http://databases.lovd.nl/shared/genes/MRE11A)). Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.M618V variant (also known as c.1852A>G), located in coding exon 15 of the MRE11A gene, results from an A to G substitution at nucleotide position 1852. The methionine at codon 618 is replaced by valine, an amino acid with highly similar properties. In one study, this variant was reported in 1/1313 early-onset breast cancer cases and 0/1123 population controls (Damiola F et al. Breast Cancer Res. 2014 Jun;16(3):R58). 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. -
Ataxia-telangiectasia-like disorder Uncertain:1
This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 618 of the MRE11 protein (p.Met618Val). This variant is present in population databases (rs375630981, gnomAD 0.004%). This missense change has been observed in individual(s) with breast cancer (PMID: 24894818). ClinVar contains an entry for this variant (Variation ID: 142333). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at