Total submissions: 2
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV002373751 | SCV002684258 | uncertain significance | Hereditary cancer-predisposing syndrome; Cardiovascular phenotype | 2022-04-29 | criteria provided, single submitter | clinical testing | The p.R294H variant (also known as c.881G>A), located in coding exon 9 of the LZTR1 gene, results from a G to A substitution at nucleotide position 881. The arginine at codon 294 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. |
| Labcorp Genetics |
RCV003100034 | SCV003471441 | uncertain significance | not provided | 2023-03-08 | criteria provided, single submitter | clinical testing | 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. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt LZTR1 protein function. ClinVar contains an entry for this variant (Variation ID: 1764774). This variant has not been reported in the literature in individuals affected with LZTR1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 294 of the LZTR1 protein (p.Arg294His). |