Neurodevelopmental Disorder with Dysmorphic Facies, Sleep Disturbance, and Brain Abnormalities, is also known as nedfasb. An important gene associated with Neurodevelopmental Disorder with Dysmorphic Facies, Sleep Disturbance, and Brain Abnormalities is KAT5 (Lysine Acetyltransferase 5). Affiliated tissues include brain and kidney, and related phenotypes are seizure and global developmental delay