Open Close
Reina, J., Gottardo, M., Riparbelli, M.G., Llamazares, S., Callaini, G., Gonzalez, C. (2018). Centrobin is essential for C-tubule assembly and flagellum development in Drosophila melanogaster spermatogenesis.  J. Cell Biol. 217(7): 2365--2372.
FlyBase ID
Publication Type
Research paper

Centrobin homologues identified in different species localize on daughter centrioles. In Drosophila melanogaster sensory neurons, Centrobin (referred to as CNB in Drosophila) inhibits basal body function. These data open the question of CNB's role in spermatocytes, where daughter and mother centrioles become basal bodies. In this study, we report that in these cells, CNB localizes equally to mother and daughter centrioles and is essential for C-tubules to attain the right position and remain attached to B-tubules as well as for centrioles to grow in length. CNB appears to be dispensable for meiosis, but flagellum development is severely compromised in Cnb mutant males. Remarkably, three N-terminal POLO phosphorylation sites that are critical for CNB function in neuroblasts are dispensable for spermatogenesis. Our results underpin the multifunctional nature of CNB that plays different roles in different cell types in Drosophila, and they identify CNB as an essential component for C-tubule assembly and flagellum development in Drosophila spermatogenesis.

PubMed ID
PubMed Central ID
PMC6028543 (PMC) (EuropePMC)
Associated Information
Associated Files
Other Information
Secondary IDs
    Language of Publication
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    J. Cell Biol.
    Journal of Cell Biology
    Publication Year
    Data From Reference
    Genes (4)