Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV000806629 | SCV000946638 | uncertain significance | 3-methylglutaconic aciduria, type VIIB | 2018-12-18 | criteria provided, single submitter | clinical testing | This sequence change replaces leucine with phenylalanine at codon 83 of the CLPB protein (p.Leu83Phe). The leucine residue is weakly conserved and there is a small physicochemical difference between leucine and phenylalanine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with CLPB-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The phenylalanine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. 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. |
3billion, |
RCV000806629 | SCV005328817 | likely benign | 3-methylglutaconic aciduria, type VIIB | 2024-09-20 | criteria provided, single submitter | clinical testing | The homozygous variant was found in patients diagnosed with another variant in a different gene, with no symptoms related to the gene containing the homozygous variant. |