Katanin-like protein Katnal2 is required for ciliogenesis and brain development in Xenopus embryos
Ημερομηνία
2018Συγγραφέας
Willsey, Helen RankinWalentek, Peter
Exner, Cameron R. T.
Xu, Yuxiao
Lane, Andrew B.
Harland, Richard M.
Heald, Rebecca
Santama, Niovi
ISSN
0012-1606Source
Developmental BiologyVolume
442Issue
2Pages
276-287Google Scholar check
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
Microtubule remodeling is critical for cellular and developmental processes underlying morphogenetic changes and for the formation of many subcellular structures. Katanins are conserved microtubule severing enzymes that are essential for spindle assembly, ciliogenesis, cell division, and cellular motility. We have recently shown that a related protein, Katanin-like 2 (KATNAL2), is similarly required for cytokinesis, cell cycle progression, and ciliogenesis in cultured mouse cells. However, its developmental expression pattern, localization, and in vivo role during organogenesis have yet to be characterized. Here, we used Xenopus embryos to reveal that Katnal2 (1) is expressed broadly in ciliated and neurogenic tissues throughout embryonic development (2) is localized to basal bodies, ciliary axonemes, centrioles, and mitotic spindles and (3) is required for ciliogenesis and brain development. Since human KATNAL2 is a risk gene for autism spectrum disorders, our functional data suggest that Xenopus may be a relevant system for understanding the relationship of mutations in this gene to autism and the underlying molecular mechanisms of pathogenesis.