SIGNAL TRANSDUCTION PATHWAY Definition & Meaning

signal transduction pathway

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.

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Slow synaptic transmission activates receptors on the receiving nerve cells that then cause changes in chemicals known as second messengers, a whole internal signal transduction pathway within the cell that might be thought of as the brain’s software.

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In rapid succession, scientists from Stanford, Harvard, and other universities reportedly reached out to a small Bay-area biotechnology company called Rigel to request permission to study one of their lead compounds, fostamitinib, an inhibitor of the Syk kinase which is also in the B cell signal transduction pathway.

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signal transduction pathway

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