11-108267164-C-T
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_000051.4(ATM):c.2467-7C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,613,584 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000051.4 splice_region, intron
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: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ATM | NM_000051.4 | c.2467-7C>T | splice_region_variant, intron_variant | Intron 16 of 62 | ENST00000675843.1 | NP_000042.3 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152136Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000239 AC: 6AN: 251102 AF XY: 0.0000295 show subpopulations
GnomAD4 exome AF: 0.0000226 AC: 33AN: 1461448Hom.: 0 Cov.: 31 AF XY: 0.0000234 AC XY: 17AN XY: 727028 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152136Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74298 show subpopulations
ClinVar
Submissions by phenotype
not provided Benign:4
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
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Malignant tumor of breast Uncertain:1
The ATM c.2467-7C>T variant was not identified in the literature nor was it identified in the COGR, Cosmic, LOVD 3.0, or the ATM-LOVD database. The variant was identified in dbSNP (ID: rs768850329) as "With Uncertain significance allele", and in ClinVar (classified as likely benign by Invitae, GeneDx, Color Genomics; as uncertain significance by Integrated Genetics/Laboratory Corporation of America). The variant was identified in control databases in 5 of 245888 chromosomes at a frequency of 0.00002 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: European Non-Finnish in 3 of 111516 chromosomes (freq: 0.00003), and Ashkenazi Jewish in 2 of 9834 chromosomes (freq: 0.0002); it was not observed in the African, Other, Latino, East Asian, Finnish, and South Asian populations. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. 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. -
not specified Benign:1
Variant summary: ATM c.2467-7C>T alters a non-conserved nucleotide located at a position not widely known to affect splicing. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 2.4e-05 in 251102 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. To our knowledge, no occurrence of c.2467-7C>T in individuals affected with Ataxia-Telangiectasia and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 236691). Based on the evidence outlined above, the variant was classified as likely benign. -
Ataxia-telangiectasia syndrome Benign:1
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Familial cancer of breast Benign:1
This variant is considered benign. This variant is intronic and is not expected to impact mRNA splicing. 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