Total submissions: 5
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Illumina Laboratory Services, |
RCV000372100 | SCV000406271 | uncertain significance | COG1 congenital disorder of glycosylation | 2018-01-13 | criteria provided, single submitter | clinical testing | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. |
| Labcorp Genetics |
RCV000372100 | SCV002211203 | uncertain significance | COG1 congenital disorder of glycosylation | 2022-08-16 | criteria provided, single submitter | clinical testing | This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 89 of the COG1 protein (p.Arg89Cys). This variant is present in population databases (rs766457949, gnomAD 0.009%). This variant has not been reported in the literature in individuals affected with COG1-related conditions. ClinVar contains an entry for this variant (Variation ID: 324958). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 | RCV002521119 | SCV003741725 | uncertain significance | Inborn genetic diseases | 2022-04-07 | criteria provided, single submitter | clinical testing | The c.265C>T (p.R89C) alteration is located in exon 1 (coding exon 1) of the COG1 gene. This alteration results from a C to T substitution at nucleotide position 265, causing the arginine (R) at amino acid position 89 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. |
| 3billion, |
RCV000372100 | SCV005328637 | likely benign | COG1 congenital disorder of glycosylation | 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. |
| Daryl Scott Lab, |
RCV000372100 | SCV005871103 | uncertain significance | COG1 congenital disorder of glycosylation | 2024-01-01 | criteria provided, single submitter | clinical testing | PM2 |