allosterism, allostery

allosterism, allostery
The influencing of an enzyme activity, or the binding of a ligand to a protein, by a change in the conformation of the protein, brought about by the binding of a substrate or other effector at a site (allosteric site) other than the active site of the protein. Cf.:cooperativity, hysteresis.

Medical dictionary. 2011.

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Look at other dictionaries:

  • allostery — noun The quality of being allosteric Syn: allosterism …   Wiktionary

  • allosterism — al·lo·ster·ism (alґo ster″iz əm) allostery …   Medical dictionary

  • cooperativity — A property of certain proteins (often enzymes) in which the binding curves or saturation curves or, in the case of enzymes, a plot of initial rates as a function of initial substrate concentration, are nonhyperbolic; suggests that the binding of… …   Medical dictionary

  • Allosteric regulation — In biochemistry, allosteric regulation is the regulation of an enzyme or other protein by binding an effector molecule at the protein s allosteric site (that is, a site other than the protein s active site). Effectors that enhance the protein s… …   Wikipedia

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