11-108320043-G-C
Variant summary
Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2
The NM_000051.4(ATM):āc.6437G>Cā(p.Ser2146Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000707 in 1,598,250 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict 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
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ACMG classification
Verdict is Benign. Variant got -13 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ATM | NM_000051.4 | c.6437G>C | p.Ser2146Thr | missense_variant | Exon 44 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00392 AC: 596AN: 152156Hom.: 8 Cov.: 32
GnomAD3 exomes AF: 0.000959 AC: 239AN: 249170Hom.: 1 AF XY: 0.000608 AC XY: 82AN XY: 134918
GnomAD4 exome AF: 0.000370 AC: 535AN: 1445976Hom.: 1 Cov.: 28 AF XY: 0.000287 AC XY: 207AN XY: 720228
GnomAD4 genome AF: 0.00391 AC: 595AN: 152274Hom.: 8 Cov.: 32 AF XY: 0.00356 AC XY: 265AN XY: 74456
ClinVar
Submissions by phenotype
not specified Benign:8Other:1
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The ATM p.Ser2146Thr variant was not identified in the literature nor was it identified in the COGR, Cosmic, or ATM-LOVD databases. The variant was identified in dbSNP (ID: rs56815840) as "With other allele ", ClinVar (classified as benign by GeneDx, Ambry Genetics, Invitae, Color Genomics; as likely benign by one clinical laboratory), MutDB, and in LOVD 3.0 (1x as benign). The variant was identified in control databases in 347 of 275004 chromosomes (3 homozygous) at a frequency of 0.001 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: African in 300 of 24016 chromosomes (freq: 0.013), Other in 11 of 6442 chromosomes (freq: 0.002), Latino in 33 of 34386 chromosomes (freq: 0.0009), European in 3 of 124640 chromosomes (freq: 0.00002), while the variant was not observed in the Ashkenazi Jewish, East Asian, Finnish, and South Asian populations. The p.Ser2146 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and 1 of 4 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. -
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
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not provided Benign:5
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ATM: BP4, BS1 -
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Ataxia-telangiectasia syndrome Benign:3
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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -
Hereditary cancer-predisposing syndrome Benign:3
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This alteration is classified as 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. -
Familial cancer of breast Benign:2
This variant is considered benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
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Breast and/or ovarian cancer Uncertain:1
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Hereditary breast ovarian cancer syndrome Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at