Information Conversion and Amplification Signal Transduction

Modify ing amino acid side chains is therefore a useful way of controlhng ionic permeation. 

Individual cells in the bodies of multicellular creatures communicate with each other by exchanging information, resulting in synchronized functions. Information is delivered across the body by chemical substances such as hormones. Such chemicals are specifically recognized by receptors on the cell surface, and information is transmitted and amplified by enzymatic actions. 

Signal transduction and amplification systems are useful specimens to study when designing molecular devices because they are based on supramolecular interactions between substances. G-proteins play an important role in bio- 

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Information Conversion and Amplification - Signal Transduction When an extracellular signal is recognized by a receptor on a cell membrane, the G-protein activates the enzyme inside the cell. The activation of an enzyme by external chemicals can be mimicked using a system consisting of an artificial receptor and an enzyme immobilized on an artificial lipid bilayer membrane. 

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