11-108252894-T-G

Variant names:

Variant summary

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

The NM_000051.4(ATM):c.1880T>G(p.Phe627Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,612,246 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. F627S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:11O:1

Conservation

PhyloP100: 6.09

Publications

6 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 Gene-Disease associations (from GenCC):

hereditary breast carcinoma
Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics, ClinGen
ataxia telangiectasia
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, ClinGen, Laboratory for Molecular Medicine, Orphanet
hereditary nonpolyposis colon cancer
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: ClinGen, Ambry Genetics
prostate cancer
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
sarcoma
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
familial ovarian cancer
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
gastric carcinoma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ATM 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.1880T>G	p.Phe627Cys	missense_variant	Exon 12 of 63	ENST00000675843.1	NP_000042.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATM	ENST00000675843.1 link	c.1880T>G	p.Phe627Cys	missense_variant	Exon 12 of 63		NM_000051.4	ENSP00000501606.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

250808

AF XY:

0.00000738

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:

0.0000265

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1459934

Hom.:

Cov.:

AF XY:

0.0000151

AC XY:

AN XY:

726392

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33422

American (AMR)

AF:

0.00

AC:

AN:

44688

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26088

East Asian (EAS)

AF:

0.00

AC:

AN:

39532

South Asian (SAS)

AF:

0.00

AC:

AN:

86174

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53322

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000189

AC:

AN:

1110650

Other (OTH)

AF:

0.00

AC:

AN:

60304

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

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:

0.0000197

AC:

AN:

152312

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41588

American (AMR)

AF:

0.0000654

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67994

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.408

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:

0.0000272

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:11Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:3Other:1

Aug 11, 2017

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Dec 15, 2021

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at a significant frequency in large population cohorts (Lek 2016); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 11996792, 19781682, 12935922, 28779002)

GenomeConnect, ClinGen

Significance:not provided

Review Status:no classification provided

Collection Method:phenotyping only

Variant interpretted as Uncertain significance and reported on 12-16-2019 by Lab or GTR ID Credit Valley Hospital Department of Laboratory Medicine. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant.

Feb 19, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The ATM c.1880T>G; p.Phe627Cys variant (rs546087885), is reported in the literature in individuals affected with breast cancer (Bernstein 2010, Sommer 2002, Tavtigian 2009). This variant is also reported in ClinVar (Variation ID: 232928). It is only found on four alleles in the Genome Aggregation Database (v2.1.1), indicating it is not a common polymorphism. Computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.338). Due to limited information, the clinical significance of this variant is uncertain at this time. References: Bernstein JL et al. Radiation exposure, the ATM Gene, and contralateral breast cancer in the women's environmental cancer and radiation epidemiology study. J Natl Cancer Inst. 2010 Apr 7;102(7):475-83. PMID: 20305132. Sommer SS et al. Elevated frequency of ATM gene missense mutations in breast cancer relative to ethnically matched controls. Cancer Genet Cytogenet. 2002 Apr 1;134(1):25-32. PMID: 11996792. 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. PMID: 19781682.

Ataxia-telangiectasia syndrome

Uncertain:3

Oct 02, 2017

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.

Sep 16, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

Dec 10, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces phenylalanine, which is neutral and non-polar, with cysteine, which is neutral and slightly polar, at codon 627 of the ATM protein (p.Phe627Cys). This variant is present in population databases (rs546087885, gnomAD 0.003%). This missense change has been observed in individual(s) with breast cancer (PMID: 11996792, 12935922, 19781682). ClinVar contains an entry for this variant (Variation ID: 232928). 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.

Hereditary cancer-predisposing syndrome

Uncertain:2

Jun 11, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.F627C variant (also known as c.1880T>G), located in coding exon 11 of the ATM gene, results from a T to G substitution at nucleotide position 1880. The phenylalanine at codon 627 is replaced by cysteine, an amino acid with highly dissimilar properties. This alteration has been detected in 1/4112 breast cancer patients and 0/2399 healthy control individuals across numerous studies (Tavtigian S et al. Am J Hum Genet. 2009 Oct;85(4):427-46). This alteration has been reported in the germline of 2 of 8920 ethnically matched normal population control subjects but was not seen in 516 samples from a study of chronic lymphocytic leukemia patients of European descent (Tiao G et al. Leukemia, 2017 10;31:2244-2247). This variant was also identified in a patient with breast cancer (Bernstein JL et al. J Natl Cancer Inst, 2010 Apr;102:475-83). This amino acid position is well conserved in available vertebrate species. 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.

Jan 29, 2024

Color Diagnostics, LLC DBA Color Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This missense variant replaces phenylalanine with cysteine at codon 627 of the ATM protein. Computational prediction suggests that this variant may not impact protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in individuals affected with breast cancer (PMID: 11996792, 12935922, 19781682). In a large international case-control study, this variant was reported in 7/60466 breast cancer cases and 1/53461 controls (OR=6.19, 95%CI 0.761 to 50.312, p-value=0.074; PMID: 33471991). This variant has been identified in 4/282200 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:1

Oct 24, 2019

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.1880T>G (p.Phe627Cys) results in a non-conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 1.2e-05 in 250808 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.1880T>G has been reported in the literature in individuals affected with Breast Cancer (Bernstein_2010, Sommer_2003, Tavtigian_2009). These reports do not provide unequivocal conclusions about association of the variant with Breast Cancer. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Six ClinVar submissions (evaluation after 2014) cite the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance.

Breast and/or ovarian cancer

Uncertain:1

Jun 15, 2020

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

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Familial cancer of breast

Uncertain:1

Dec 12, 2023

Baylor Genetics

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

Uncertain

0.42

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

0.010

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0

.;T;T

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.77

T;T;.

M_CAP

Benign

0.036

MetaRNN

Uncertain

0.72

D;D;D

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

.;M;M

PhyloP100

6.1

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-2.5

D;N;N

REVEL

Uncertain

0.34

Sift

Benign

0.091

T;T;T

Sift4G

Pathogenic

0.0

D;D;D

Vest4

0.0

ClinPred

0.84

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.13

gMVP

0.41

Mutation Taster

=6/94

disease causing

(source)

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

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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