Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team • Last updated August 2025
Definition
A series of sequential phosphorylation events in which one phosphorylated protein activates the next protein in a chain, amplifying and transmitting a signal through a cell.
AP course connection
Topic 4.2: 4.2 Introduction to Signal Transduction