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signal transduction pathway

signal transduction pathway in Culture

signal transduction pathway definition

A set of chemical reactions in a cell that occurs when a molecule, such as a hormone, attaches to a receptor on the cell membrane. The pathway is actually a cascade of biochemical reactions inside the cell that eventually reach the target molecule or reaction. Thus, the pathway is a method by which molecules inside the cell can be altered by molecules on the outside.

The American HeritageĀ® New Dictionary of Cultural Literacy, Third Edition
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