chr11-108320024-T-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_000051.4(ATM):c.6418T>C(p.Phe2140Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,457,586 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F2140C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6

Conservation

PhyloP100: 7.18

Publications

1 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 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.848

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATM	NM_000051.4 link	c.6418T>C	p.Phe2140Leu	missense_variant	Exon 44 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.6418T>C	p.Phe2140Leu	missense_variant	Exon 44 of 63		NM_000051.4	ENSP00000501606.1		Q13315

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249466

AF XY:

0.00000740

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1457586

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725372

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33382

American (AMR)

AF:

0.00

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26088

East Asian (EAS)

AF:

0.00

AC:

AN:

39558

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86152

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108308

Other (OTH)

AF:

0.00

AC:

AN:

60236

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

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

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Ataxia-telangiectasia syndrome

Uncertain:2

Dec 14, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Dec 09, 2023

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 leucine, which is neutral and non-polar, at codon 2140 of the ATM protein (p.Phe2140Leu). This variant is present in population databases (no rsID available, gnomAD 0.003%). This missense change has been observed in individual(s) with pancreatic ductal adenocarcinoma, breast and/or ovarian cancer (PMID: 33646313, 35171259). ClinVar contains an entry for this variant (Variation ID: 489571). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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

May 17, 2019

Color Diagnostics, LLC DBA Color Health

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 19, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.F2140L variant (also known as c.6418T>C), located in coding exon 43 of the ATM gene, results from a T to C substitution at nucleotide position 6418.This variant was observed in a study of 1010 unrelated Indian patients with breast and/or ovarian cancer (Singh J et al. Breast Cancer Res Treat, 2018 Jul;170:189-196). The p.F2140L variant was also identified in an individual from Trinidad and Tobago who was diagnosed with breast cancer at age 33 (George SHL et al. JAMA Netw Open, 2021 Mar;4:e210307). The phenylalanine at codon 2140 is replaced by leucine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

not provided

Uncertain:1

Sep 16, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Observed in individuals with breast and/or ovarian cancer (Singh et al., 2018; George et al., 2021); This variant is associated with the following publications: (PMID: 33646313, 23532176, 29470806) -

Familial cancer of breast

Uncertain:1

Jan 11, 2024

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

Pathogenic

0.84

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

T;T

Eigen

Uncertain

0.64

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.83

T;.

M_CAP

Pathogenic

0.30

MetaRNN

Pathogenic

0.85

D;D

MetaSVM

Uncertain

-0.24

MutationAssessor

Uncertain

2.6

M;M

PhyloP100

7.2

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-2.1

N;N

REVEL

Uncertain

0.51

Sift

Benign

0.071

T;T

Sift4G

Benign

0.17

T;T

Polyphen

1.0

D;D

Vest4

0.85

MutPred

0.59

Gain of disorder (P = 0.1109);Gain of disorder (P = 0.1109);

MVP

0.95

MPC

0.43

ClinPred

0.87

GERP RS

5.5

Varity_R

0.47

gMVP

0.36

Mutation Taster

=9/91

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over