These intracellular signaling pathways, also called signal transduction ... Protein kinases such as PKA and PKC catalyze the transfer of phosphate groups from ATP molecules to protein molecules.

A screen for genetic modifiers revealed that the PKA signaling pathway specifically mediates the sleep deficits of inc mutants. Elevated PKA signaling also contributes to the shorter life ...

Ligustroside derived from Ligustrum japonicum shows a significant anti-melanogenesis effect via suppression of the MAPK and PKA/CREB signaling pathways.