Definition of Signal transduction

1. Noun. (biochemistry) A series of chemical reactions within a cell which start when a transmembrane protein comes into contact with a chemical signal, resulting in a second messenger being triggered. ¹

¹ Source: wiktionary.com

Medical Definition of Signal transduction

1. The cascade of processes by which an extracellular signal (typically a hormone or neurotransmitter) interacts with a receptor at the cell surface, causing a change in the level of a second messenger for example calcium or cyclic AMP) and ultimately effects a change in the cells functioning (for example: triggering glucose uptake or initiating cell division). Can also be applied to sensory signal transduction, for example of light at photoreceptors. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Signal Transduction

signal level
signal light
signal node
signal peptidase
signal peptidase complex
signal peptide
signal peptide p25-subunit IV cytochrome oxidase
signal peptides
signal phrase
signal phrases
signal power
signal recognition particle
signal recognition particle receptor
signal response coupling
signal sequence
signal transduction (current term)
signal void
signaled
signaler
signalers
signalese
signaleses
signaling
signaling device
signalings
signalisation
signalise
signalised
signalises
signalising

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