rs35203200

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

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

The NM_000051.4(ATM):c.7618G>A(p.Val2540Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000085 in 1,611,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. V2540V) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000080 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:21B:3

Conservation

PhyloP100: 5.65

Publications

12 publications found

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:

C11orf65 (HGNC:28519): (chromosome 11 open reading frame 65) Predicted to be involved in negative regulation of mitochondrial fission and negative regulation of protein targeting to mitochondrion. Predicted to be located in cytosol and mitochondrial outer membrane. [provided by Alliance of Genome Resources, Apr 2022]

C11orf65 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATM	NM_000051.4 link	c.7618G>A	p.Val2540Ile	missense_variant	Exon 51 of 63	ENST00000675843.1	NP_000042.3	Q13315A0A024R3C7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATM	ENST00000675843.1 link	c.7618G>A	p.Val2540Ile	missense_variant	Exon 51 of 63		NM_000051.4	ENSP00000501606.1		Q13315

Frequencies

GnomAD3 genomes

AF:

0.000132

AC:

AN:

151748

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.0164

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:

0.0000736

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000438

AC:

AN:

251002

AF XY:

0.0000368

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000880

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000801

AC:

117

AN:

1460176

Hom.:

Cov.:

AF XY:

0.0000881

AC XY:

AN XY:

726360

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33450

American (AMR)

AF:

0.0000672

AC:

AN:

44648

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26070

East Asian (EAS)

AF:

0.00

AC:

AN:

39562

South Asian (SAS)

AF:

0.00

AC:

AN:

85922

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53228

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5700

European-Non Finnish (NFE)

AF:

0.0000972

AC:

108

AN:

1111272

Other (OTH)

AF:

0.0000829

AC:

AN:

60324

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.442

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000132

AC:

AN:

151748

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74094

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41318

American (AMR)

AF:

0.00

AC:

AN:

15238

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4814

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10462

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000736

AC:

AN:

67952

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000954

Hom.:

Bravo

AF:

0.000264

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:21Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Ataxia-telangiectasia syndrome

Uncertain:6

Sep 16, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jun 17, 2025

St. Jude Molecular Pathology, St. Jude Children's Research Hospital

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The ATM c.7618G>A p.(Val2540Ile) missense change has a maximum subpopulation frequency of 0.01% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge functional studies have not been performed. To our knowledge, this variant has not been reported in individuals with ataxia telangiectasia. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 2540 of the ATM protein (p.Val2540Ile). This variant is present in population databases (rs35203200, gnomAD 0.009%). This missense change has been observed in individual(s) with gastric cancer, breast cancer, ovarian cancer, chronic lymphocytic leukemia, pancreatic cancer, melanoma, and colorectal cancer (PMID: 25186627, 26689913, 26976419, 27978560, 28591191, 28652578, 29360161, 33850299). ClinVar contains an entry for this variant (Variation ID: 141579). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt ATM protein function with a negative predictive value of 95%. 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. -

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Sep 28, 2018

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The ATM c.7618G>A; p.Val2540Ile variant (rs35203200) is reported in the literature in individuals with breast, ovarian, stomach, or colorectal cancer (Lu 2015, Pearlman 2017, Stafford, Tung 2016) but has also been reported in an unaffected control (Tavtigian 2009). This variant is classified as uncertain in ClinVar (Variation ID: 141579), and found in the general population with an overall allele frequency of 0.005% (13/276580 alleles) in the Genome Aggregation Database. The valine at codon 2540 is moderately conserved, but computational analyses (SIFT, PolyPhen-2) predict that this variant is tolerated. Due to limited information, the clinical significance of this variant is uncertain at this time. REFERENCES Lu C et al. Patterns and functional implications of rare germline variants across 12 cancer types. Nat Commun. 2015 Dec 22;6:10086. Pearlman R et al. Prevalence and Spectrum of Germline Cancer Susceptibility Gene Mutations Among Patients With Early-Onset Colorectal Cancer. JAMA Oncol. 2017 Apr 1;3(4):464-471. Stafford JL et al. Reanalysis of BRCA1/2 negative high risk ovarian cancer patients reveals novel germline risk loci and insights into missing heritability. PLoS One. 2017 Jun 7;12(6):e0178450. Tavtigian SV et al. Rare, evolutionarily unlikely missense substitutions in ATM confer increased risk of breast cancer. Am J Hum Genet. 2009 Oct;85(4):427-46. Tung N et al. Frequency of Germline Mutations in 25 Cancer Susceptibility Genes in a Sequential Series of Patients With Breast Cancer. J Clin Oncol. 2016 May 1;34(13):1460-8. -

Apr 17, 2018

Counsyl

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

not provided

Uncertain:4Benign:1

Feb 23, 2024

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

PM2_moderate, PS3_moderate -

Jan 27, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); Published functional studies demonstrate reduced HDR activity, reduced cell viability, and defects in kinase activity (PMID: 35354106); In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in individuals with breast, ovarian, rectal, and other cancers, but also in unaffected controls (PMID: 19781682, 26689913, 26976419, 28779002, 27978560, 28591191, 28652578, 29522266, 29641532, 30303537, 30374176, 34326862, 34262154, 33471991); This variant is associated with the following publications: (PMID: 26976419, 30374176, 31920950, 30303537, 19781682, 26689913, 22529920, 27978560, 28591191, 27720647, 28779002, 29522266, 28652578, 29596542, 29641532, 23532176, 33471991, 34326862, 34262154, 33850299, 35354106) -

Oct 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ATM: BP4 -

Jan 22, 2021

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 22, 2021

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The frequency of this variant in the general population, 0.0001 (13/128932 chromosomes, http://gnomad.broadinstitute.org), is uninformative in assessment of its pathogenicity. In the published literature, the variant has been reported in individuals with breast/ovarian cancer (PMIDs: 29522266 (2018), 29360161 (2018), 28779002 (2017), 26976419 (2016), 25186627 (2015)), colorectal cancer (PMID: 27978560 (2016)), stomach cancer (PMID: 26689913 (2015)), lymphocytic leukemia (PMID: 28652578 (2017)), as well as in control individuals (PMIDs: 28779002 (2017), 19781682 (2009), 16832357 (2006)). Analysis of this variant using bioinformatics tools for the prediction of the effect of amino acid changes on protein structure and function yielded predictions that this variant is benign. Based on the available information, we are unable to determine the clinical significance of this variant. -

Familial cancer of breast

Uncertain:2Benign:1

Jul 08, 2025

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 2540 of the ATM protein (p.Val2540Ile). The valine at codon 2540 is moderately conserved. This variant is present in population databases (rs35203200, gnomAD 0.009%). This missense change has been observed in individual(s) with gastric cancer, breast cancer, ovarian cancer, chronic lymphocytic leukemia, pancreatic cancer, melanoma, and colorectal cancer (PMID: 25186627, 26689913, 26976419, 27978560, 28591191, 28652578, 29360161, 33850299). ClinVar contains an entry for this variant (Variation ID: 141579). computational analyses (SIFT, PolyPhen-2) predict that this variant is tolerated. 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 -

Jun 14, 2024

Myriad Genetics, Inc.

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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]. -

Oct 24, 2023

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Uncertain:2Benign:1

Nov 22, 2022

Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Apr 20, 2022

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

Sep 17, 2024

Color Diagnostics, LLC DBA Color Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This missense variant replaces valine with isoleucine at codon 2540 of the ATM protein. Computational prediction suggests that this variant may not impact protein structure and function. An in vitro functional study suggests that this variant may reduce kinase activity, homology directed repair, and colony formation (PMID: 35354106). This variant has been reported in individuals affected with breast cancer, ovarian cancer, rectal cancer, stomach adenocarcinoma, and dystonia, as well as in unaffected controls (PMID: 19781682, 25186627, 26689913, 26976419, 27978560, 28591191, 28779002, 29522266, 30303537, 31920950, 33471991). This variant has been identified in 14/282022 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

not specified

Uncertain:2

Aug 03, 2020

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: ATM c.7618G>A (p.Val2540Ile) results in a conservative amino acid change located in the PIK-related kinase, FAT domain (IPR003151) of 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 4.8e-05 in 252044 control chromosomes. This frequency is not significantly higher than expected for a pathogenic variant in ATM causing Ataxia-Telangiectasia (4.8e-05 vs 0.004), allowing no conclusion about variant significance. c.7618G>A has been reported in the literature in individuals affected with breast cancer (e.g. Tung_2015, Tung_2016, Hauke_2018, Girard_2019), ovarian cancer (e.g. Stafford_2017), CLL (e.g. Tiao_2017), colorectal cancer (e.g. Pearlman_2016), and pancreatic cancer (e.g. Dudley_2018), but also in healthy controls (e.g. Renwick_2006, Tavtigian_2009). The variant has also been reported in an individual with dystonia (e.g. Pogoda_2019). These reports do not provide unequivocal conclusions about association of the variant with Ataxia-Telangiectasia. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Eight other clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. These laboratories cited the variant as uncertain significance (n=7) and likely benign (n=1). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Sep 20, 2017

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breast and/or ovarian cancer

Uncertain:1

Dec 21, 2022

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

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

ATM-related cancer predisposition

Uncertain:1

May 17, 2023

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast

Uncertain:1

Jan 02, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

ATM-related disorder

Uncertain:1

Aug 26, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The ATM c.7618G>A variant is predicted to result in the amino acid substitution p.Val2540Ile. This variant has been reported in patients with colorectal cancer (eTable 2, Pearlman et al. 2017. PubMed ID: 27978560), breast cancer (Tung et al 2016. PubMed ID: 26976419), and ovarian cancer (Stafford et al. 2017. PubMed ID: 28591191). However, this variant was also reported in a control individual in a breast cancer study (Table S2, Tavtigian et al. 2009. PubMed ID: 19781682). This variant is reported in 0.010% of alleles in individuals of European (non-Finnish) descent in gnomAD and has conflicting interpretations regarding its pathogenicity in ClinVar, ranging from likely benign to uncertain significance (https://www.ncbi.nlm.nih.gov/clinvar/variation/141579/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Intellectual disability

Uncertain:1

Dec 30, 2019

Cambridge Genomics Laboratory, East Genomic Laboratory Hub, NHS Genomic Medicine Service

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.073

T;T

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.82

T;.

M_CAP

Uncertain

0.12

MetaRNN

Benign

0.028

T;T

MetaSVM

Benign

-0.55

MutationAssessor

Benign

1.6

L;L

PhyloP100

5.7

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.56

N;N

REVEL

Uncertain

0.32

Sift

Benign

0.21

T;T

Sift4G

Benign

0.25

T;T

Polyphen

0.71

P;P

Vest4

0.22

MutPred

0.34

Loss of MoRF binding (P = 0.3409);Loss of MoRF binding (P = 0.3409);

MVP

0.86

MPC

0.10

ClinPred

0.12

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.24

gMVP

0.27

Mutation Taster

=76/24

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.30

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.30

Position offset: 21

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over