rs200151849

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_000051.4(ATM):​c.275A>C​(p.Lys92Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,613,916 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).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

4
8
7

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:5O:1

Conservation

PhyloP100: 8.72
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1027056).
BP6
Variant 11-108229267-A-C is Benign according to our data. Variant chr11-108229267-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 133625.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Uncertain_significance=4, not_provided=1}. Variant chr11-108229267-A-C is described in Lovd as [Benign].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATMNM_000051.4 linkc.275A>C p.Lys92Thr missense_variant Exon 4 of 63 ENST00000675843.1 NP_000042.3 Q13315A0A024R3C7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATMENST00000675843.1 linkc.275A>C p.Lys92Thr missense_variant Exon 4 of 63 NM_000051.4 ENSP00000501606.1 Q13315

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152232
Hom.:
0
Cov.:
33
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:
0.00115
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000757
AC:
19
AN:
251078
Hom.:
0
AF XY:
0.0000810
AC XY:
11
AN XY:
135738
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00103
Gnomad SAS 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:
0.0000192
AC:
28
AN:
1461566
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727070
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000706
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152350
Hom.:
0
Cov.:
33
AF XY:
0.0000671
AC XY:
5
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00116
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302
ExAC
AF:
0.0000741
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:5Benign:5Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Ataxia-telangiectasia syndrome Uncertain:2Benign:1
Jan 17, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

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 16, 2020
Natera, Inc.
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1Benign:2
Sep 15, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Jul 30, 2021
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. -

Dec 19, 2019
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1Other:1
Oct 07, 2024
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: ATM c.275A>C (p.Lys92Thr) results in a non-conservative amino acid change located in the Telomere-length maintenance and DNA damage repair domain (IPR021668) of 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 7.6e-05 in 251078 control chromosomes, predominantly at a frequency of 0.001 within the East Asian subpopulation in the gnomAD database. This frequency is similar to the maximal expected allele frequency for a disease causing allele in ATM gene (0.001), suggesting that this variant may represent a rare ethnic polymorphism. c.275A>C has been reported not to be enriched in individuals affected with Breast Cancer (example, Okawa_2023). These report(s) 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. The following publications has been ascertained in the context of this evaluation (PMID: , 36243179). ClinVar contains an entry for this variant (Variation ID: 133625). Based on the evidence outlined above, the variant was classified as likely benign. -

Sep 19, 2013
ITMI
Significance: not provided
Review Status: no classification provided
Collection Method: reference population

- -

Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast Uncertain:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Uncertain:1
Dec 26, 2017
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is denoted ATM c.275A>C at the cDNA level, p.Lys92Thr (K92T) at the protein level, and results in the change of a Lysine to a Threonine (AAA>ACA). This variant was also identified in 1/62 healthy East Asian individuals undergoing whole genome sequencing (Bodian 2014). Of note, the participants in this study were younger than 50 years old thus the unaffected status of this individual may not be significant. ATM Lys92Thr was observed at an allele frequency of 0.11% (19/18,844) in individuals of East Asian ancestry in large population cohorts (Lek 2016). ATM Lys92Thr is located in region of interaction with p53 & BRCA1 (Stracker 2013). In-silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect. Based on currently available evidence, it is unclear whether ATM Lys92Thr is a pathogenic or benign variant. We consider it to be a variant of uncertain significance. -

Familial cancer of breast Benign:1
Sep 28, 2023
Baylor Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.69
BayesDel_addAF
Benign
-0.095
T
BayesDel_noAF
Uncertain
0.030
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.080
.;T;T;T;.;T;T;T;T;T;T
Eigen
Pathogenic
0.76
Eigen_PC
Pathogenic
0.79
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D;D;D;T;D;.;.;.;.;.;D
M_CAP
Benign
0.073
D
MetaRNN
Benign
0.10
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.53
T
MutationAssessor
Uncertain
2.2
.;M;.;.;.;M;.;.;.;.;.
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-2.6
D;N;D;D;.;N;.;.;.;.;.
REVEL
Uncertain
0.38
Sift
Benign
0.17
T;T;T;D;.;T;.;.;.;.;.
Sift4G
Uncertain
0.0060
D;T;T;D;D;T;.;.;.;D;D
Polyphen
1.0
.;D;.;.;.;D;D;D;D;D;.
Vest4
0.68, 0.72, 0.61, 0.76
MVP
0.92
MPC
0.62
ClinPred
0.43
T
GERP RS
6.1
Varity_R
0.58
gMVP
0.55

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.

Other links and lift over

dbSNP: rs200151849; hg19: chr11-108099994; API