Receptor tyrosine kinases (RTKs) are a class of membrane receptors that play a crucial role in cell signaling and regulation by transferring phosphate groups from ATP to specific tyrosine residues on target proteins. This phosphorylation activates various signaling pathways, leading to changes in cell behavior such as growth, differentiation, and metabolism. RTKs are integral to how cells respond to external signals and are significant players in processes like development and cancer progression.
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