11-108250816-C-T
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 0P and 3B. BP4_ModerateBP6
The NM_000051.4(ATM):c.1351C>T(p.Arg451Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000632 in 1,613,956 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
Consequence
NM_000051.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.1351C>T | p.Arg451Cys | missense_variant | Exon 10 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000855 AC: 13AN: 151976Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000131 AC: 33AN: 251354Hom.: 0 AF XY: 0.000110 AC XY: 15AN XY: 135840
GnomAD4 exome AF: 0.0000609 AC: 89AN: 1461862Hom.: 0 Cov.: 35 AF XY: 0.0000591 AC XY: 43AN XY: 727228
GnomAD4 genome AF: 0.0000855 AC: 13AN: 152094Hom.: 0 Cov.: 32 AF XY: 0.0000673 AC XY: 5AN XY: 74330
ClinVar
Submissions by phenotype
not provided Uncertain:4
- -
- -
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 24356096, 26689913, 28652578, 30287823, 31719806, 27104957, 33436325, 26911350, 30093976, 31742824, 28779002, 32973888, 36627197, 36243179, 33471991) -
The ATM p.Arg451Cys variant was not identified in the literature nor was it identified in the GeneInsight-COGR, MutDB, LOVD 3.0, ATM-LOVD, databases. The variant was identified in the following databases: dbSNP (ID: rs201719927) as With Uncertain significance allele, ClinVar (classified as uncertain significance by Ambry Genetics, Invitae, GeneDx), Cosmic (classified as Pathogenic (score 0.96)). The variant was identified in control databases in 30 of 246126 chromosomes at a frequency of 0.000122 increasing the likelihood this could be a low frequency variant (Genome Aggregation Consortium Feb 27, 2017). The p.Arg451 residue is conserved in mammals but not in more distantly related organisms, and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) suggest that the variant may impact the protein; however, this information is not predictive enough to assume pathogenicity. The variant occurs outside of the splicing consensus sequence and 1 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -
Hereditary cancer-predisposing syndrome Uncertain:1Benign:2
- -
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. -
- -
Ataxia-telangiectasia syndrome Uncertain:1Benign:1
- -
- -
Ataxia-telangiectasia syndrome;C0346153:Familial cancer of breast Uncertain:1
- -
ATM-related disorder Uncertain:1
The ATM c.1351C>T variant is predicted to result in the amino acid substitution p.Arg451Cys. This variant has been reported in cases and controls from a breast cancer cohort study (Supp. Data, Momozawa et al. 2018. PubMed ID: 30287823), an individual with a personal and family history of breast cancer (Table S2, Chan et al. 2018. PubMed ID: 30093976), and (Table S4, Karlsson et al. 2021. PubMed ID: 33436325). This variant is reported in 0.082% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/11-108121543-C-T). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Familial cancer of breast Benign:1
This variant is considered likely benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at