rs730881342

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_000051.4(ATM):​c.1727T>A​(p.Ile576Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,532 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. I576T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.93

Publications

10 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.825

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATMNM_000051.4 linkc.1727T>A p.Ile576Lys missense_variant Exon 11 of 63 ENST00000675843.1 NP_000042.3 Q13315A0A024R3C7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATMENST00000675843.1 linkc.1727T>A p.Ile576Lys missense_variant Exon 11 of 63 NM_000051.4 ENSP00000501606.1 Q13315

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251150
AF XY:
0.00
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:
6.84e-7
AC:
1
AN:
1461532
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727074
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.00
AC:
0
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111764
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.325
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1
Jan 31, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.I576K variant (also known as c.1727T>A), located in coding exon 10 of the ATM gene, results from a T to A substitution at nucleotide position 1727. The isoleucine at codon 576 is replaced by lysine, an amino acid with dissimilar properties. In one study, this alteration was observed in a Norwegian BRCA1 and BRCA2 negative breast and ovarian cancer cohort (Jarhelle E et al. Sci Rep, 2019 12;9:19986). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.23
CADD
Uncertain
24
DANN
Benign
0.97
DEOGEN2
Uncertain
0.51
.;D;D
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.82
T;D;.
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.82
D;D;D
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Uncertain
2.4
.;M;M
PhyloP100
3.9
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.1
D;D;D
REVEL
Pathogenic
0.67
Sift
Uncertain
0.0020
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
.;D;D
Vest4
0.83, 0.81
MutPred
0.66
Gain of disorder (P = 0.0059);Gain of disorder (P = 0.0059);Gain of disorder (P = 0.0059);
MVP
0.97
MPC
0.47
ClinPred
0.87
D
GERP RS
6.0
Varity_R
0.46
gMVP
0.76
Mutation Taster
=65/35
polymorphism

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

Other links and lift over

dbSNP: rs730881342; hg19: chr11-108122683; API