Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Counsyl | RCV000674920 | SCV000800336 | uncertain significance | Bloom syndrome | 2018-06-04 | criteria provided, single submitter | clinical testing | |
Labcorp Genetics |
RCV000674920 | SCV002286187 | uncertain significance | Bloom syndrome | 2021-07-15 | criteria provided, single submitter | clinical testing | 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with BLM-related conditions. ClinVar contains an entry for this variant (Variation ID: 558622). This variant is not present in population databases (ExAC no frequency). This sequence change replaces aspartic acid with tyrosine at codon 542 of the BLM protein (p.Asp542Tyr). The aspartic acid residue is weakly conserved and there is a large physicochemical difference between aspartic acid and tyrosine. |