Total submissions: 3
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Labcorp Genetics |
RCV001381048 | SCV001579300 | pathogenic | Neurofibromatosis, type 1 | 2020-02-17 | criteria provided, single submitter | clinical testing | This sequence change affects a donor splice site in intron 1 of the NF1 gene. It is expected to disrupt RNA splicing and likely results in an absent or disrupted protein product. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. Disruption of this splice site has been observed in individual(s) with clinical features of neurofibromatosis 1 (PMID: 18484666, 25541118, Invitae). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site, but this prediction has not been confirmed by published transcriptional studies. Donor and acceptor splice site variants typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in NF1 are known to be pathogenic (PMID: 10712197, 23913538). For these reasons, this variant has been classified as Pathogenic. |
Ambry Genetics | RCV002357288 | SCV002656173 | likely pathogenic | Hereditary cancer-predisposing syndrome; Cardiovascular phenotype | 2020-04-17 | criteria provided, single submitter | clinical testing | The c.60+2T>C intronic variant results from a T to C substitution two nucleotides after coding exon 1 in the NF1 gene. This nucleotide position is highly conserved in available vertebrate species. Using the BDGP and ESEfinder splice site prediction tools, this alteration is predicted to abolish the native splice donor site; however, direct evidence is unavailable. Alterations that disrupt the canonical splice site are expected to cause aberrant splicing, resulting in an abnormal protein or a transcript that is subject to nonsense-mediated mRNA decay. As such, this alteration is classified as likely pathogenic. |
Fulgent Genetics, |
RCV005014523 | SCV005644920 | likely pathogenic | Neurofibromatosis, familial spinal; Juvenile myelomonocytic leukemia; Neurofibromatosis, type 1; Neurofibromatosis-Noonan syndrome; Café-au-lait macules with pulmonary stenosis | 2024-05-14 | criteria provided, single submitter | clinical testing |