rs372411821

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_005591.4(MRE11):​c.1096C>T​(p.Arg366*) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000056 in 1,607,808 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. R366R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

MRE11
NM_005591.4 stop_gained, splice_region

Scores

4
3
5
Splicing: ADA: 0.2839
2

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 2.46

Publications

5 publications found
Variant links:
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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 11-94467815-G-A is Pathogenic according to our data. Variant chr11-94467815-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 1681596.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MRE11NM_005591.4 linkc.1096C>T p.Arg366* stop_gained, splice_region_variant Exon 10 of 20 ENST00000323929.8 NP_005582.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MRE11ENST00000323929.8 linkc.1096C>T p.Arg366* stop_gained, splice_region_variant Exon 10 of 20 1 NM_005591.4 ENSP00000325863.4
MRE11ENST00000323977.7 linkc.1096C>T p.Arg366* stop_gained, splice_region_variant Exon 10 of 19 1 ENSP00000326094.3
MRE11ENST00000407439.7 linkc.1105C>T p.Arg369* stop_gained, splice_region_variant Exon 10 of 20 2 ENSP00000385614.3
MRE11ENST00000393241.8 linkc.1096C>T p.Arg366* stop_gained, splice_region_variant Exon 10 of 20 5 ENSP00000376933.4

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152000
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000550
AC:
8
AN:
1455808
Hom.:
0
Cov.:
29
AF XY:
0.00000828
AC XY:
6
AN XY:
724648
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33342
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26104
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39636
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86130
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53392
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5516
European-Non Finnish (NFE)
AF:
0.00000361
AC:
4
AN:
1106828
Other (OTH)
AF:
0.00
AC:
0
AN:
60144
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152000
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74230
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41394
American (AMR)
AF:
0.00
AC:
0
AN:
15250
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5178
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10564
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Ataxia-telangiectasia-like disorder 1 Pathogenic:1
Dec 23, 2023
Baylor Genetics
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Hereditary cancer-predisposing syndrome Pathogenic:1
Jul 07, 2023
Ambry Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R366* pathogenic mutation (also known as c.1096C>T), located in coding exon 9 of the MRE11A gene, results from a C to T substitution at nucleotide position 1096. This changes the amino acid from an arginine to a stop codon within coding exon 9. This mutation has been identified in a cohort of high-risk breast/ovarian cancer patients (Cast&eacute;ra L et al. Eur. J. Hum. Genet., 2014 Nov;22:1305-13). In addition to the published data, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation.

Ataxia-telangiectasia-like disorder Pathogenic:1
Apr 20, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

For these reasons, this variant has been classified as Pathogenic. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. This variant has been observed in individual(s) with a personal and/or family history of breast and/or ovarian cancer (PMID: 24549055). This variant is not present in population databases (ExAC no frequency). This sequence change creates a premature translational stop signal (p.Arg366*) in the MRE11 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in MRE11 are known to be pathogenic (PMID: 23080121, 23912341).

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.56
D
BayesDel_noAF
Pathogenic
0.57
CADD
Pathogenic
56
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0
.;.;.;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.49
LIST_S2
Benign
0.0
.;.;.;.
MetaRNN
Benign
0.0
.;.;.;.
MutationAssessor
Benign
0.0
.;.;.;.
PhyloP100
2.5
PROVEAN
Benign
0.0
.;.;.;.
Sift
Pathogenic
0.0
.;.;.;.
Sift4G
Pathogenic
0.0
.;.;.;.
Vest4
0.99
GERP RS
2.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=0/200
disease causing (fs/PTC)

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.28
dbscSNV1_RF
Benign
0.65
SpliceAI score (max)
0.87
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.87
Position offset: 2

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

Publications

Other links and lift over

dbSNP: rs372411821; hg19: chr11-94200981; COSMIC: COSV60578898; COSMIC: COSV60578898; API