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Intellectual disability - microarray and sequencing v5.16 SPTAN1 Sarah Leigh Phenotypes for gene: SPTAN1 were changed from Epileptic encephalopathy, early infantile, 5, 613477; EPILEPTIC ENCEPHALOPATHY EARLY INFANTILE TYPE 5 (EIEE5) to Developmental and epileptic encephalopathy 5, OMIM:613477; developmental and epileptic encephalopathy, 5, MONDO:0013277
Intellectual disability - microarray and sequencing v5.15 SPTAN1 Sarah Leigh Publications for gene: SPTAN1 were set to
Intellectual disability - microarray and sequencing v3.0 NUS1 Konstantinos Varvagiannis edited their review of gene: NUS1: Added comment: Please consider upgrading this gene (NUS1 is also rated Green in the epilepsy panel).

Den et al (2019 - PMID: 31656175) reported on 2 additional unrelated individuals (aged 17 and 59y) both presenting intellectual disability, epilepsy , involuntary movements, ataxia and scoliosis. Both were found to harbor the same splicing variant in NUS1 (NM_138459.4:c.691+1C>A) following exome sequencing. Using lymphoblastoid cell lines from both individuals it was demonstrated that the variant creates a new splice donor site in exon 3 further creating a new reading frame and producing a premature termination codon [c.601_691del or p.(Arg202Glnfs*9)]. Using cyclohexamide, it was further shown that the mutant mRNA is partially subjected to NMD. [Additional variants identified by exome for the 2 subjects were non diagnostic (/VUS). An SPTAN1 nonsense variant identified in one was inherited from an unaffected parent (dominant-negative mechanism listed in G2P for this gene / in ClinVar all pLoF variants are submitted as VUS)].
-----; Changed rating: GREEN; Changed publications: 25066056, 29100083, 24824130, 30348779, 31656175
Intellectual disability - microarray and sequencing v2.468 SPTAN1 Louise Daugherty Source Victorian Clinical Genetics Services was added to SPTAN1.
Intellectual disability - microarray and sequencing SPTAN1 BRIDGE consortium edited their review of SPTAN1
Intellectual disability - microarray and sequencing SPTAN1 BRIDGE consortium edited their review of SPTAN1
Intellectual disability - microarray and sequencing SPTAN1 BRIDGE consortium reviewed SPTAN1