Missense variants in DPYSL5 cause a neurodevelopmental disorder with corpus callosum agenesis and cerebellar abnormalities

The collapsin response mediator protein (CRMP) family proteins are intracellular mediators of neurotrophic factors regulating neurite structure/spine formation and are essential for dendrite patterning and directional axonal pathfinding during brain developmental processes. Among this family, CRMP5/DPYSL5 plays a significant role in neuronal migration, axonal guidance, dendrite outgrowth, and synapse formation by interacting with microtubules. Here, we report the identification of missense mutations in DPYSL5 in nine individuals with brain malformations, including corpus callosum agenesis and/or posterior fossa abnormalities, associated with variable degrees of intellectual disability.

Source: The American Journal of Human Genetics - April 23, 2021 Category: Genetics & Stem Cells Authors: M édéric Jeanne, Hélène Demory, Aubin Moutal, Marie-Laure Vuillaume, Sophie Blesson, Rose-Anne Thépault, Sylviane Marouillat, Judith Halewa, Saskia M. Maas, M. Mahdi Motazacker, Grazia M.S. Mancini, Marjon A. van Slegtenhorst, Avgi Andreou, Helene Co Tags: Report Source Type: research