Total submissions: 1
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV001212800 | SCV001384397 | uncertain significance | Hereditary nonpolyposis colorectal neoplasms | 2019-07-23 | criteria provided, single submitter | clinical testing | This variant has not been reported in the literature in individuals with MLH1-related conditions. This variant is not present in population databases (ExAC no frequency). This sequence change replaces glycine with valine at codon 22 of the MLH1 protein (p.Gly22Val). The glycine residue is highly conserved and there is a moderate physicochemical difference between glycine and valine. 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 disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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. |