rs762210984

chr11-94470530-T-Cchr11-94470530-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005591.4(MRE11):c.958A>G(p.Ile320Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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. I320L) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: MRE11 NM_005591.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 1.17

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.10564989).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MRE11	NM_005591.4	c.958A>G	p.Ile320Val	missense_variant	9/20	ENST00000323929.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MRE11	ENST00000323929.8	c.958A>G	p.Ile320Val	missense_variant	9/20	1	NM_005591.4	P3
MRE11	ENST00000323977.7	c.958A>G	p.Ile320Val	missense_variant	9/19	1
MRE11	ENST00000407439.7	c.967A>G	p.Ile323Val	missense_variant	9/20	2
MRE11	ENST00000393241.8	c.958A>G	p.Ile320Val	missense_variant	9/20	5		A1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461076 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726858

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Ataxia-telangiectasia-like disorder 1 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Revvity Omics, Revvity

Aug 21, 2019

- -

Hereditary cancer-predisposing syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 18, 2018

The p.I320V variant (also known as c.958A>G), located in coding exon 8 of the MRE11A gene, results from an A to G substitution at nucleotide position 958. The isoleucine at codon 320 is replaced by valine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.056
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
Cadd	Benign	15
Dann	Uncertain	0.98
DEOGEN2	Benign	0.063	T;.;.;.
Eigen	Benign	-0.50
Eigen_PC	Benign	-0.41
FATHMM_MKL	Benign	0.74	D
LIST_S2	Benign	0.69	T;T;T;T
M_CAP	Benign	0.031	D
MetaRNN	Benign	0.11	T;T;T;T
MetaSVM	Benign	-0.71	T
MutationAssessor	Benign	1.5	L;.;L;.
MutationTaster	Benign	0.93	N;N;N;N
PrimateAI	Benign	0.29	T
PROVEAN	Benign	-0.040	N;N;N;N
REVEL	Benign	0.13
Sift	Benign	0.10	T;T;T;T
Sift4G	Benign	0.28	T;T;T;T
Polyphen		0.0010	B;.;B;.
Vest4		0.076
MutPred		0.44		.;Loss of loop (P = 0.0512);.;.;
MVP		0.57
MPC		0.071
ClinPred		0.12	T
GERP RS		2.0
Varity_R		0.11
gMVP		0.23

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs762210984; hg19: chr11-94203696;