rs755860432
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7
The NM_000051.4(ATM):c.876G>A(p.Pro292Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000205 in 1,610,766 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P292P) has been classified as Likely benign.
Frequency
Consequence
NM_000051.4 synonymous
Scores
Clinical Significance
Conservation
Publications
- hereditary breast carcinomaInheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics, ClinGen
- ataxia telangiectasiaInheritance: 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 cancerInheritance: AD Classification: MODERATE, LIMITED Submitted by: ClinGen, Ambry Genetics
- prostate cancerInheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
- sarcomaInheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
- familial ovarian cancerInheritance: AD Classification: LIMITED Submitted by: ClinGen
- gastric carcinomaInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
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ACMG classification
Our verdict: Benign. The variant received -13 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.876G>A | p.Pro292Pro | synonymous_variant | Exon 7 of 63 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152072Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000524 AC: 13AN: 248152 AF XY: 0.0000669 show subpopulations
GnomAD4 exome AF: 0.0000219 AC: 32AN: 1458694Hom.: 0 Cov.: 32 AF XY: 0.0000220 AC XY: 16AN XY: 725822 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152072Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 74270 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Benign:2
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:2
The ATM p.Pro292= variant was identified in the literature however the frequency of this variant in an affected population was not provided (Decker 2017). The variant was also identified in the following databases: dbSNP (ID: rs755860432) as "With Likely benign allele", ClinVar (2x likely benign, 1x benign), and Clinvitae (2x likely benign, 1x benign). The variant was not identified in Cosmic, MutDB, or LOVD 3.0. The variant was identified in control databases in 13 of 243644 chromosomes at a frequency of 0.00005 (Genome Aggregation Database Feb 27, 2017). Breakdown of the observations by population include Latino in 5 of 33486 chromosomes (freq: 0.0001), European in 1 of 111146 chromosomes (freq: 0.000009), Ashkenazi Jewish in 2 of 9828 chromosomes (freq: 0.0002), East Asian in 1 of 17192 chromosomes (freq: 0.00006), and South Asian in 4 of 30758 chromosomes (freq: 0.0001). The variant was not observed in the African, Other, or Finnish populations. The p.Pro292 residue is conserved across mammals and other organisms, however it is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, 4 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. In our lab this variant was observed with a co-occurring pathogenic BRCA1 variant c.5161C>T, increasing the likelihood that the p.Pro292= variant does not have clinical significance. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
ATM: BP4, BP7 -
Hereditary cancer-predisposing syndrome Benign: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. -
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Ataxia-telangiectasia syndrome Benign:1
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Familial cancer of breast Benign:1
This variant is considered benign. This variant is a silent/synonymous amino acid change and it is not expected to impact splicing. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at