P-Body Localization of the Hrr25/Casein Kinase 1 Protein Kinase Is Required for the Completion of Meiosis [Research Article]

P-bodies are liquid droplet-like compartments that lack a limiting membrane and are present in many eukaryotic cells. These structures contain specific sets of proteins and mRNAs at concentrations higher than that in the surrounding environment. Although highly conserved, the normal physiological roles of these ribonucleoprotein (RNP) granules remain poorly defined. Here, we report that P-bodies are required for the efficient completion of meiosis in the budding yeast Saccharomyces cerevisiae. P-bodies were found to be present during all phases of the meiotic program and to provide protection for the Hrr25/CK1 protein kinase, a key regulator of this developmental process. A failure to associate with these RNP granules resulted in diminished levels of Hrr25 and an ensuing inability to complete meiosis. This work therefore identifies a novel function for these RNP granules and indicates how protein recruitment to these structures can have a significant impact on eukaryotic cell biology.

Source link

Related posts

Proteasome β5 subunit overexpression improves proteostasis during aging and extends lifespan in Drosophila melanogaster

Newsemia Named to Inc. 5000 List for Second Year in a Row


AMIA Announces 2018 Signature Award and Leadership Award Recipients


This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More

Privacy & Cookies Policy