Total submissions: 4
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Illumina Laboratory Services, |
RCV001142030 | SCV001302425 | uncertain significance | Knobloch syndrome | 2018-01-12 | 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. |
| Gene |
RCV001772337 | SCV001993469 | uncertain significance | not provided | 2019-08-20 | criteria provided, single submitter | clinical testing | In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge |
| Labcorp Genetics |
RCV001772337 | SCV002119167 | uncertain significance | not provided | 2024-12-20 | criteria provided, single submitter | clinical testing | This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 810 of the COL18A1 protein (p.Arg810Trp). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with COL18A1-related conditions. ClinVar contains an entry for this variant (Variation ID: 898257). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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 | RCV002557020 | SCV003733223 | uncertain significance | Inborn genetic diseases | 2022-04-06 | criteria provided, single submitter | clinical testing | The c.2428C>T (p.R810W) alteration is located in exon 28 (coding exon 28) of the COL18A1 gene. This alteration results from a C to T substitution at nucleotide position 2428, causing the arginine (R) at amino acid position 810 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. |