Total submissions: 1
Submitter | RCV | SCV | Clinical significance | Condition | Last evaluated | Review status | Method | Comment |
---|---|---|---|---|---|---|---|---|
Invitae | RCV001031655 | SCV001194961 | likely pathogenic | Early infantile epileptic encephalopathy with suppression bursts | 2021-08-12 | criteria provided, single submitter | clinical testing | This variant is a gross deletion of the genomic region encompassing exon(s) 12-15 of the STXBP1 gene. This variant would be expected to be in-frame, preserving the integrity of the reading frame. A similar copy number variant has been observed in individual(s) with early onset seizures and intellectual disability (Invitae). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. This variant disrupts the p.Arg406 amino acid residue in STXBP1. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 20887364, 23934111, 26648591, 28387360). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. |