Publication date: Available online 28 February 2017
Source:Cellular Signalling
Author(s): Sean Singh, Wasima Mohamed, Annelie Aguessy, Ella Dyett, Shriraj Shah, Mohammedasad Khan, Ramamurthy Baskar, Derrick Brazill
Multicellular development in Dictyostelium discoideum involves tightly regulated signaling events controlling the entry into development, initiation of aggregation and chemotaxis, and cellular differentiation. Here we show that PkcA, a Dictyostelium discoideum Protein Kinase C-orthologue, is involved in quorum sensing and the initiation of development, as well as cAMP sensing during chemotaxis. Additionally, by epistasis analysis we provide evidence that PkcA and PldB (a Phospholipase D-orthologue) functionally interact to regulate aggregation, differentiation, and cell-cell adhesion during development. Finally, we show that PkcA acts as a positive regulator of intracellular PLD-activity during development. Taken together, our results suggest that PkcA act through PldB, by regulating PLD-activity, in order to control events during development.
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