chr11-108267198-C-T

Position:

chr11-108267198-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_000051.4(ATM):c.2494C>T(p.Arg832Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000255 in 1,613,948 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R832H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:9

Conservation

PhyloP100: -0.273

Variant links:

Genes affected

ATM (HGNC:795): (ATM serine/threonine kinase) The protein encoded by this gene belongs to the PI3/PI4-kinase family. This protein is an important cell cycle checkpoint kinase that phosphorylates; thus, it functions as a regulator of a wide variety of downstream proteins, including tumor suppressor proteins p53 and BRCA1, checkpoint kinase CHK2, checkpoint proteins RAD17 and RAD9, and DNA repair protein NBS1. This protein and the closely related kinase ATR are thought to be master controllers of cell cycle checkpoint signaling pathways that are required for cell response to DNA damage and for genome stability. Mutations in this gene are associated with ataxia telangiectasia, an autosomal recessive disorder. [provided by RefSeq, Aug 2010]

ATM links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.024146795).

BP6

Variant 11-108267198-C-T is Benign according to our data. Variant chr11-108267198-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 140867.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=8, Uncertain_significance=7}. Variant chr11-108267198-C-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATM	NM_000051.4 linkuse as main transcript	c.2494C>T	p.Arg832Cys	missense_variant	17/63	ENST00000675843.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATM	ENST00000675843.1 linkuse as main transcript	c.2494C>T	p.Arg832Cys	missense_variant	17/63		NM_000051.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000296

AC:

AN:

152030

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000459

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.000265

Gnomad OTH

AF:

0.000960

GnomAD3 exomes

AF:

0.000247

AC:

AN:

251364

Hom.:

AF XY:

0.000221

AC XY:

AN XY:

135858

show subpopulations

Gnomad AFR exome

AF:

0.000369

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.000163

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000325

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000250

AC:

366

AN:

1461800

Hom.:

Cov.:

AF XY:

0.000231

AC XY:

168

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.000508

Gnomad4 AMR exome

AF:

0.000492

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000252

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000296

AC:

AN:

152148

Hom.:

Cov.:

AF XY:

0.000255

AC XY:

AN XY:

74390

show subpopulations

Gnomad4 AFR

AF:

0.000458

Gnomad4 AMR

AF:

0.000393

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.000950

Alfa

AF:

0.000191

Hom.:

Bravo

AF:

0.000325

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000214

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:9Benign:9

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome

Uncertain:1Benign:4

Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Apr 24, 2015	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneKor MSA	Aug 01, 2018	- -
Likely benign, no assertion criteria provided	clinical testing	True Health Diagnostics	May 08, 2018	- -
Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Aug 22, 2021	- -
Likely benign, criteria provided, single submitter	clinical testing	Ambry Genetics	May 18, 2018	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not specified

Uncertain:2Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jan 30, 2023	Variant summary: ATM c.2494C>T (p.Arg832Cys) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00023 in 278644 control chromosomes (gnomAD). This frequency is not higher than predicted for a pathogenic variant in ATM causing Breast Cancer (0.00023 vs 0.001), allowing no conclusion about variant significance. Multiple publications have cited the variant in affected individuals with varying phenotypes including Lynch syndrome, breast cancer, chronic lymphocytic leukemia, prostate cancer and pancreatic cancer (e.g. Grant_2015, Nadeu_2016, Schwartz_2019, Skowronska_2012, Paulo_2018, Tung_2016, Yurgelun_2015) but also in controls (e.g. Momozawa_2018, Tavtigian_2009). These reports do not provide unequivocal conclusions about association of the variant with Breast Cancer. A co-occurrence with a pathogenic variant has been reported following internal testing (SMAD4 c.787+2T>C). A ClinVar submitter reports co-occurrence with another mutation in the ATM gene (phase unknown) for the phenotype of Hereditary cancer-predisposing syndrome (SCV000183785.6). Furthermore, the variant was reported in the FLOSSIES database in 5 women older than age 70 years who have never had cancer. Altogether, these data provide supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Twelve ClinVar submitters (evaluation after 2014) cite the variant as likely benign (n=6) and as uncertain significance (n=6). Based on the evidence outlined above, the variant was classified as likely benign. -
Uncertain significance, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Sep 08, 2016	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital	Feb 06, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 02, 2017	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Ataxia-telangiectasia syndrome

Uncertain:2Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Apr 16, 2020	- -

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Mayo Clinic Laboratories, Mayo Clinic	Jun 13, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden	Nov 03, 2021	- -

Breast and/or ovarian cancer

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

May 05, 2023

- -

ATM-related disorder

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Apr 26, 2024

The ATM c.2494C>T variant is predicted to result in the amino acid substitution p.Arg832Cys. This variant has been reported in individuals with early-onset breast cancer (Table S1, Young et al. 2016. PubMed ID: 26787654; Table A2, Tung et al. 2016. PubMed ID: 26976419), suspected Lynch syndrome (Table S2, Yurgelun et al. 2015. PubMed ID: 25980754), chronic lymphocytic leukemia (Table S8, Nadeu et al. 2016. PubMed ID: 26837699), and pancreatic cancer (Table S1, Grant et al. 2015. PubMed ID: 25479140; Schwartz et al. 2019. PubMed ID: 31432501). This variant is reported in 0.044% of alleles in individuals of African descent in gnomAD and has conflicting interpretations regarding its pathogenicity in ClinVar, ranging from likely benign to uncertain (https://www.ncbi.nlm.nih.gov/clinvar/variation/140867/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Hereditary cancer

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Mendelics

Sep 11, 2024

This variant is considered likely benign or benign based on one or more of the following: it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease, and/or has normal protein function, and/or has lack of segregation with disease, and/or has been detected in co-occurrence with known pathogenic variant, and/or has lack of disease association in case-control studies, and/or is located in a region inconsistent with a known cause of pathogenicity. -

Familial cancer of breast

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Myriad Genetics, Inc.

May 09, 2024

This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.89

DEOGEN2

Benign

0.069

.;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.0050

LIST_S2

Benign

0.22

T;T;.

M_CAP

Benign

0.010

MetaRNN

Benign

0.024

T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

-0.41

.;N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.19

PROVEAN

Benign

-0.86

N;N;N

REVEL

Uncertain

0.30

Sift

Benign

0.18

T;T;T

Sift4G

Benign

0.18

T;T;T

Polyphen

0.0

.;B;B

Vest4

0.19, 0.20

MVP

0.57

MPC

0.17

ClinPred

0.020

GERP RS

-1.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.080

gMVP

0.18

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over