Total submissions: 4
| Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
|---|---|---|---|---|---|---|---|---|
| Ambry Genetics | RCV000130299 | SCV000185148 | uncertain significance | Hereditary cancer-predisposing syndrome | 2014-03-03 | criteria provided, single submitter | clinical testing | The p.I988V variant (also known as c.2962A>G), located in coding exon 22 of the NF1 gene, results from an A to G substitution at nucleotide position 2962. The isoleucine at codon 988 is replaced by valine, an amino acid with highly similar properties. This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be benign and tolerated by PolyPhen and SIFT in silico analyses, respectively. Since supporting evidence is limited at this time, the clinical significance of p.I988V remains unclear. |
| Labcorp Genetics |
RCV001050120 | SCV001214212 | uncertain significance | Neurofibromatosis, type 1 | 2023-06-14 | 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on NF1 protein function. ClinVar contains an entry for this variant (Variation ID: 141685). This variant has not been reported in the literature in individuals affected with NF1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 988 of the NF1 protein (p.Ile988Val). |
| Genome- |
RCV001050120 | SCV002560244 | uncertain significance | Neurofibromatosis, type 1 | 2022-03-15 | criteria provided, single submitter | clinical testing | |
| Fulgent Genetics, |
RCV005016442 | SCV005646724 | uncertain significance | Neurofibromatosis, familial spinal; Juvenile myelomonocytic leukemia; Neurofibromatosis, type 1; Neurofibromatosis-Noonan syndrome; Café-au-lait macules with pulmonary stenosis | 2024-04-25 | criteria provided, single submitter | clinical testing |