Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV002514625 | SCV003004784 | uncertain significance | Bloom syndrome | 2024-12-16 | criteria provided, single submitter | clinical testing | This sequence change replaces alanine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 1357 of the BLM protein (p.Ala1357Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BLM-related conditions. ClinVar contains an entry for this variant (Variation ID: 133704). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt BLM protein function with a negative predictive value of 80%. 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. |
Ambry Genetics | RCV004948187 | SCV005544571 | uncertain significance | Hereditary cancer-predisposing syndrome | 2024-10-11 | criteria provided, single submitter | clinical testing | The p.A1357P variant (also known as c.4069G>C), located in coding exon 20 of the BLM gene, results from a G to C substitution at nucleotide position 4069. The alanine at codon 1357 is replaced by proline, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. |
ITMI | RCV000120233 | SCV000084381 | not provided | not specified | 2013-09-19 | no assertion provided | reference population |