rs786201675

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_000051.4(ATM):​c.3712_3716delTTATT​(p.Leu1238fs) variant causes a frameshift change. The variant allele was found at a frequency of 0.00000912 in 1,535,136 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000080 ( 0 hom. )

Consequence

ATM
NM_000051.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:15

Conservation

PhyloP100: 6.93
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 Pathogenic. Variant got 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 11-108282837-CTTTTA-C is Pathogenic according to our data. Variant chr11-108282837-CTTTTA-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 184764.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-108282837-CTTTTA-C is described in Lovd as [Pathogenic]. Variant chr11-108282837-CTTTTA-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATMNM_000051.4 linkuse as main transcriptc.3712_3716delTTATT p.Leu1238fs frameshift_variant 25/63 ENST00000675843.1 NP_000042.3 Q13315A0A024R3C7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATMENST00000675843.1 linkuse as main transcriptc.3712_3716delTTATT p.Leu1238fs frameshift_variant 25/63 NM_000051.4 ENSP00000501606.1 Q13315

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152128
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000795
AC:
11
AN:
1383008
Hom.:
0
AF XY:
0.00000867
AC XY:
6
AN XY:
691890
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:
0.0000105
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152128
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:15
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Ataxia-telangiectasia syndrome Pathogenic:4
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 19, 2024This sequence change creates a premature translational stop signal (p.Leu1238Lysfs*6) in the ATM gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in ATM are known to be pathogenic (PMID: 23807571, 25614872). This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with ataxia-telangiectasia, chronic lymphocytic leukemia, or bladder cancer, sarcoma, and polyposis (PMID: 21665257, 21933854, 22071889, 26845104, 27528516). ClinVar contains an entry for this variant (Variation ID: 184764). For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingGreenwood Genetic Center Diagnostic Laboratories, Greenwood Genetic CenterAug 29, 2022PVS1 PS3 PM2 -
Pathogenic, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -
Pathogenic, criteria provided, single submitterclinical testingWomen's Health and Genetics/Laboratory Corporation of America, LabCorpOct 30, 2017Variant summary: The ATM c.3712_3716delTTATT (p.Leu1238LysfsX6) variant results in a premature termination codon, predicted to cause a truncated or absent ATM protein due to nonsense mediated decay, which are commonly known mechanisms for disease. This variant is absent in 241134 control chromosomes (gnomAD). Multiple publications have cited the variant in homozygote and compound heterozygote A-T pts. In addition, multiple clinical diagnostic laboratories classified this variant as "likely pathogenic/pathogenic." Taken together, this variant is classified as pathogenic. -
not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalJul 31, 2024- -
Pathogenic, criteria provided, single submitterclinical testingGeneDxMar 12, 2024Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Observed heterozygous in individuals with ATM-related cancers (PMID: 30303537, 31432501); Not observed in large population cohorts (gnomAD); Truncating variants in this gene are considered pathogenic by a well-established clinical consortium and/or database; Also known as 3711del5 and c.3705delTTTTA; This variant is associated with the following publications: (PMID: 21933854, 21445571, 16238588, 27664052, 34234304, 32782288, 29922827, 22071889, 10817650, 9043869, 23091097, 9792409, 27528516, 26556299, 30303537, 31432501, 31589614, 33436325, 35312039, 12815592) -
Pathogenic, no assertion criteria providedclinical testingGenetic Services Laboratory, University of ChicagoJul 29, 2022DNA sequence analysis of the ATM gene demonstrated a 5 base pair deletion in exon 25, c.3712_3716del. This sequence change results in an amino acid frameshift and creates a premature stop codon 5 amino acids downstream of the change, p.Leu1238Lysfs*6. This sequence change is predicted to result in an abnormal transcript, which may be degraded, or may lead to the production of a truncated ATM protein with potentially abnormal function. The c.3712_3716del sequence change has not been described in population databases such as ExAC and gnomAD. The c.3712_3716del sequence change has previously been described in the compound heterozygous state in individuals with ataxia-telangiectasia (PMID: 22071889, 27528516). This variant has also been identified in the germline heterozygous state in an individual with esophagogastric adenocarcinoma and in an individual with familial pancreatic cancer (PMID: 26556299, 31432501). Similar frameshift variants in this region have also been described in individuals with ATM-related disorders and have been described as pathogenic. -
Familial cancer of breast Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingMyriad Genetics, Inc.Jan 22, 2024This variant is considered pathogenic. This variant creates a frameshift predicted to result in premature protein truncation. -
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsFeb 21, 2024- -
Pathogenic, no assertion criteria providedclinical testingMedical Genetics Laboratory, Umraniye Training and Research Hospital, University of Health SciencesAug 07, 2021- -
Hereditary cancer-predisposing syndrome Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthDec 21, 2020This variant deletes 5 nucleotides in exon 25 of the ATM gene, creating a frameshift and premature translation stop signal. This variant is expected to result in an absent or non-functional protein product. This variant has been reported in the homozygous state or compound heterozygous state with a second ATM mutation in individuals affected with ataxia telangiectasia (PMID: 9792409, 10817650, 12815592, 21665257, 22071889, 27528516). This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Loss of ATM function is a known mechanism of disease (clinicalgenome.org). Based on the available evidence, this variant is classified as Pathogenic. -
Pathogenic, criteria provided, single submitterclinical testingAmbry GeneticsSep 09, 2024The c.3712_3716delTTATT pathogenic mutation, located in coding exon 24 of the ATM gene, results from a deletion of 5 nucleotides at nucleotide positions 3712 to 3716, causing a translational frameshift with a predicted alternate stop codon (p.L1238Kfs*6). This variant has been reported in multiple homozygous and compound heterozygous individuals with ataxia-telangiectasia (A-T) (Vorechovský I et al. Eur. J. Hum. Genet. 1996;4:352-5; Broeks A et al. Hum. Mutat. 1998;12:330-7; Li A et al. Am. J. Med. Genet. 2000 May;92:170-7; Mitui M et al. Hum. Mutat. 2003 Jul;22:43-50; Jacquemin V et al. Eur. J. Hum. Genet. 2012 Mar;20:305-12; Carranza D et al. Neuromolecular Med. 2017 Mar;19:161-174; Berland A et al. J Allergy Clin Immunol, 2019 01;143:325-334.e2). Of note, this alteration is also designated as 3709del5 and 3711del5 in published literature. This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. As such, this alteration is interpreted as a disease-causing mutation. -
Likely pathogenic, criteria provided, single submitterclinical testingUniversity of Washington Department of Laboratory Medicine, University of WashingtonNov 20, 2015- -
Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsNov 23, 2021- -
ATM-related disorder Pathogenic:1
Pathogenic, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 22, 2024The ATM c.3712_3716del5 variant is predicted to result in a frameshift and premature protein termination (p.Leu1238Lysfs*6). This variant has been reported in multiple individuals with ataxia-telangiectasia (A-T) (examples, Carranza et al. 2016. PubMed ID: 27664052; Li et al. 2000. PubMed ID: 10817650; Marelli et al. 2016. PubMed ID: 27528516). This variant has not been reported in a large population database, indicating this variant is rare. This variant is interpreted as likely pathogenic/pathogenic in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/184764/). Frameshift variants in ATM are expected to be pathogenic. This variant is interpreted as pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs786201675; hg19: chr11-108153564; API