Objectives for Cell Signaling-1

Objectives for Cell Signaling-1 - Objectives for Cell...

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Objectives for Cell Signaling (Chapter 11) 1. Know these terms: Signal- cell to cell communication in multicellular organisms Transduction- the conversion of a signal from outside the cell to a form that can bring about a particular cellular response. Response- the change in a specific cellular activity brought about by a transduced signal from outside the cell Amacrine- a neuron of the retina that helps integrate information before it is sent to the brain. Paracrine- referring to a secreted molecule that acts on neighboring cell Endocrine- (hormonal signaling)- specialized cells release hormone molecules, which travel via the circulatory system to target cells in other parts of the body Ligand- a molecule that binds specifically to another molecule, usually a larger one G protein- a GTP- binding protein that relays signals from a plasma membrane signal receptor, known as G protein- coupled receptor, to other signal transduction proteins inside the cell G protein-coupled receptors- (G protein-linked receptor )- a signal receptor protein in the plasma membrane that responds to the binding of a signaling molecule by activating a G protein. Second messenger-a small, nonprotein, water-soluble molecule or ion, such as calcium (Ca 2+ ) or cyclic AMP, hat relays a signal to a cell’s interior in response to a signaling molecule bound by a signal receptor protein
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This note was uploaded on 02/05/2011 for the course BIO 311C taught by Professor Satasivian during the Spring '08 term at University of Texas at Austin.

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Objectives for Cell Signaling-1 - Objectives for Cell...

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