Total submissions: 2
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Institute of Human Genetics Munich, |
RCV000578225 | SCV000680174 | likely pathogenic | Congenital myasthenic syndrome 4C | 2017-09-08 | criteria provided, single submitter | clinical testing | |
Invitae | RCV002530364 | SCV002932430 | pathogenic | Congenital myasthenic syndrome 4A | 2022-03-31 | criteria provided, single submitter | clinical testing | This sequence change affects a donor splice site in intron 11 of the CHRNE gene. While this variant is not anticipated to result in nonsense mediated decay, it likely alters RNA splicing and results in a disrupted protein product. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CHRNE-related conditions. ClinVar contains an entry for this variant (Variation ID: 488482). Variants that disrupt the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. This variant disrupts a region of the CHRNE protein in which other variant(s) (p.Asn452Glufs*4) have been determined to be pathogenic (PMID: 8957026, 15951177, 19064877, 21175599, 28024842, 29054425). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. |