rs776761757

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000051.4(ATM):​c.4662C>A​(p.Asn1554Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000277 in 1,441,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

ATM
NM_000051.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.616
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.17603868).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATMNM_000051.4 linkuse as main transcriptc.4662C>A p.Asn1554Lys missense_variant 31/63 ENST00000675843.1 NP_000042.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATMENST00000675843.1 linkuse as main transcriptc.4662C>A p.Asn1554Lys missense_variant 31/63 NM_000051.4 ENSP00000501606 P1

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000160
AC:
4
AN:
249992
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135142
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000277
AC:
4
AN:
1441944
Hom.:
0
Cov.:
29
AF XY:
0.00000139
AC XY:
1
AN XY:
718432
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000365
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Ataxia-telangiectasia syndrome Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 01, 2021In 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with ATM-related conditions. This variant is present in population databases (rs776761757, ExAC 0.003%). This sequence change replaces asparagine with lysine at codon 1554 of the ATM protein (p.Asn1554Lys). The asparagine residue is moderately conserved and there is a moderate physicochemical difference between asparagine and lysine. -
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Oct 28, 2019- -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxAug 22, 2023Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
21
DANN
Benign
0.96
DEOGEN2
Benign
0.066
T;T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.23
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.81
T;.
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.18
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.5
L;L
MutationTaster
Benign
0.77
D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.86
N;N
REVEL
Benign
0.20
Sift
Benign
0.47
T;T
Sift4G
Benign
0.63
T;T
Polyphen
0.0020
B;B
Vest4
0.48
MutPred
0.51
Gain of ubiquitination at N1554 (P = 0.0128);Gain of ubiquitination at N1554 (P = 0.0128);
MVP
0.87
MPC
0.15
ClinPred
0.13
T
GERP RS
3.3
Varity_R
0.15
gMVP
0.17

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs776761757; hg19: chr11-108164090; API