Lissencephaly 4, also known as lis4, is related to lissencephaly 2 and lissencephaly 1. An important gene associated with Lissencephaly 4 is NDE1 (NudE Neurodevelopment Protein 1), and among its related pathways/superpathways are Cell Cycle Checkpoints and Neurogenesis regulation in the olfactory epithelium. Affiliated tissues include brain and cortex, and related phenotypes are global developmental delay and wide nasal bridge