Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV001278261 | SCV003466899 | uncertain significance | Methylmalonic aciduria, cblA type | 2021-10-08 | criteria provided, single submitter | clinical testing | This sequence change replaces aspartic acid with histidine at codon 284 of the MMAA protein (p.Asp284His). The aspartic acid residue is highly conserved and there is a moderate physicochemical difference between aspartic acid and histidine. This variant is present in population databases (rs758654806, ExAC 0.01%). This variant has not been reported in the literature in individuals with MMAA-related disease. 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. |
Natera, |
RCV001278261 | SCV001465259 | uncertain significance | Methylmalonic aciduria, cblA type | 2020-09-08 | no assertion criteria provided | clinical testing |