11-94445855-A-G

Variant names:

• chr11-94445855-A-G
• rs770184763
• NM_005591.4:c.1822T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_005591.4(MRE11):​c.1822T>C​(p.Ser608Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/22 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. S608A) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MRE11 NM_005591.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.53
• Publications: 0 publications found

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]

MRE11 Gene-Disease associations (from GenCC):

• ataxia-telangiectasia-like disorder 1

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics
• breast cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics
• familial ovarian cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• hereditary breast carcinoma

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• prostate cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24254796).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MRE11	NM_005591.4	c.1822T>C	p.Ser608Pro	missense_variant	Exon 16 of 20	ENST00000323929.8	NP_005582.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MRE11	ENST00000323929.8	c.1822T>C	p.Ser608Pro	missense_variant	Exon 16 of 20	1	NM_005591.4	ENSP00000325863.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1

Dec 26, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.S608P variant (also known as c.1822T>C), located in coding exon 15 of the MRE11A gene, results from a T to C substitution at nucleotide position 1822. The serine at codon 608 is replaced by proline, an amino acid with similar properties. This amino acid position is conserved. 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.091
BayesDel_addAF	Uncertain	0.054	T
BayesDel_noAF	Benign	-0.16
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Benign	0.14	T;.;.
Eigen	Benign	-0.10
Eigen_PC	Benign	0.022
FATHMM_MKL	Uncertain	0.80	D
LIST_S2	Benign	0.67	T;T;T
M_CAP	Benign	0.041	D
MetaRNN	Benign	0.24	T;T;T
MetaSVM	Benign	-0.60	T
MutationAssessor	Benign	1.8	L;.;.
PhyloP100		3.5
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-1.0	N;N;N
REVEL	Benign	0.27
Sift	Uncertain	0.013	D;D;D
Sift4G	Benign	0.13	T;T;T
Polyphen		0.0	B;.;.
Vest4		0.30
MutPred		0.16		.;Loss of phosphorylation at S611 (P = 0.0162);.;
MVP		0.67
MPC		0.11
ClinPred		0.62	D
GERP RS		5.5
Varity_R		0.22
gMVP		0.32
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs770184763; hg19: chr11-94179021;