rs1555018337

Variant names:

• chr11-94490954-T-C
• rs1555018337
• NM_005591.4:c.32A>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005591.4(MRE11):​c.32A>G​(p.Asn11Ser) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MRE11 NM_005591.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.55

Genes affected

MRE11 (HGNC:7230): (MRE11 homolog, double strand break repair nuclease) This gene encodes a nuclear protein involved in homologous recombination, telomere length maintenance, and DNA double-strand break repair. By itself, the protein has 3' to 5' exonuclease activity and endonuclease activity. The protein forms a complex with the RAD50 homolog; this complex is required for nonhomologous joining of DNA ends and possesses increased single-stranded DNA endonuclease and 3' to 5' exonuclease activities. In conjunction with a DNA ligase, this protein promotes the joining of noncomplementary ends in vitro using short homologies near the ends of the DNA fragments. This gene has a pseudogene on chromosome 3. Alternative splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.35776258).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MRE11	NM_005591.4	c.32A>G	p.Asn11Ser	missense_variant	Exon 3 of 20	ENST00000323929.8	NP_005582.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MRE11	ENST00000323929.8	c.32A>G	p.Asn11Ser	missense_variant	Exon 3 of 20	1	NM_005591.4	ENSP00000325863.4

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1314020 Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0 AN XY: 661250

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1

Oct 29, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.N11S variant (also known as c.32A>G), located in coding exon 2 of the MRE11A gene, results from an A to G substitution at nucleotide position 32. The asparagine at codon 11 is replaced by serine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -

Ataxia-telangiectasia-like disorder Uncertain:1

Nov 23, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This sequence change replaces asparagine with serine at codon 11 of the MRE11 protein (p.Asn11Ser). The asparagine residue is weakly conserved and there is a small physicochemical difference between asparagine and serine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with MRE11-related disease. 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: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.088
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.42	T;.;.;.;T;.;.
Eigen	Benign	-0.038
Eigen_PC	Benign	0.093
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.87	D;D;D;D;D;D;D
M_CAP	Benign	0.060	D
MetaRNN	Benign	0.36	T;T;T;T;T;T;T
MetaSVM	Benign	-0.57	T
MutationAssessor	Benign	0.91	L;.;L;.;.;.;.
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-2.7	D;D;D;D;D;N;N
REVEL	Benign	0.29
Sift	Uncertain	0.0060	D;D;D;D;T;T;T
Sift4G	Uncertain	0.017	D;D;T;T;T;T;T
Polyphen		0.64	P;.;B;.;.;.;.
Vest4		0.17
MutPred		0.45		.;Gain of disorder (P = 0.0868);.;.;.;.;.;
MVP		0.61
MPC		0.068
ClinPred		0.82	D
GERP RS		4.5
Varity_R		0.23
gMVP		0.40

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1555018337; hg19: chr11-94224120;