Neurodevelopmental Disorder with Seizures, Spasticity, and Complete or Partial Agenesis of the Corpus Callosum, is also known as nedsscc. An important gene associated with Neurodevelopmental Disorder with Seizures, Spasticity, and Complete or Partial Agenesis of the Corpus Callosum is HECTD4 (HECT Domain E3 Ubiquitin Protein Ligase 4). Affiliated tissues include brain, and related phenotypes are intellectual disability and seizure