👉 Kinases are enzymes that play a crucial role in cellular metabolism. They catalyze the conversion of substrates (usually lipids) into energy molecules, such as ATP (adenosine triphosphate), which is essential for various bodily functions. Kinases can be divided into two main categories: protein kinases and RNA-dependent RNA polymerase kinases. The term "kinase" comes from the Greek word "kinesis," which means "breaking through." In biological terms, a kinase