rs957472472
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PP3_StrongBS2
The NM_000465.4(BARD1):c.1388C>T(p.Thr463Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000891 in 1,458,750 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000465.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251308Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135824
GnomAD4 exome AF: 0.00000891 AC: 13AN: 1458750Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3AN XY: 725914
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Familial cancer of breast Uncertain:2
This sequence change replaces threonine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 463 of the BARD1 protein (p.Thr463Ile). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with BARD1-related conditions (PMID: 26315354, 34326862). ClinVar contains an entry for this variant (Variation ID: 460703). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
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Hereditary cancer-predisposing syndrome Uncertain:2
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The p.T463I variant (also known as c.1388C>T), located in coding exon 5 of the BARD1 gene, results from a C to T substitution at nucleotide position 1388. The threonine at codon 463 is replaced by isoleucine, an amino acid with similar properties. This alteration has been identified in individuals diagnosed with breast and/or ovarian cancer (Ramus SJ et al. J Natl Cancer Inst, 2015 Nov;107:; Bhai P et al. Front Genet, 2021 Jul;12:698595). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
not provided Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at