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- Mixed_inhibition abstract "Mixed inhibition is a type of enzyme inhibition in which the inhibitor may bind to the enzyme whether or not the enzyme has already bound the substrate but has a greater affinity for one state or the other. It is called "mixed" because it can be seen as a conceptual "mixture" of competitive inhibition, in which the inhibitor can only bind the enzyme if the substrate has not already bound, and uncompetitive inhibition, in which the inhibitor can only bind the enzyme if the substrate has already bound. If the ability of the inhibitor to bind the enzyme is exactly the same whether or not the enzyme has already bound the substrate, it is known as a non-competitive inhibitor. Non-competitive inhibition is sometimes thought of as a special case of mixed inhibition. In mixed inhibition, the inhibitor binds to an allosteric site, i.e. a site different from the active site where the substrate binds. However, not all inhibitors that bind at allosteric sites are mixed inhibitors. Mixed inhibition may result in either a decrease in the apparent affinity of the enzyme for the substrate (, a decrease in apparent affinity means the Km value appears to increase) in cases where the inhibitor favors binding the free enzyme, or in an increase in the apparent affinity (, an increase in apparent affinity means the Km value appears to decrease) when the inhibitor binds favorably to the enzyme-substrate complex. In either case the inhibition decreases the apparent maximum enzyme reaction rate .Mathematically, mixed inhibition occurs when the factors α and α’ (introduced into the Michaelis-Menten equation to account for competitive and uncompetitive inhibition, respectively) are both greater than 1.In the special case where α = α’, noncompetitive inhibition occurs, in which case is reduced but is unaffected. This is very unusual in practice".
- Mixed_inhibition thumbnail Mixed_inhibition.svg?width=300.
- Mixed_inhibition wikiPageID "1112147".
- Mixed_inhibition wikiPageRevisionID "578792475".
- Mixed_inhibition hasPhotoCollection Mixed_inhibition.
- Mixed_inhibition subject Category:Enzyme_inhibitors.
- Mixed_inhibition comment "Mixed inhibition is a type of enzyme inhibition in which the inhibitor may bind to the enzyme whether or not the enzyme has already bound the substrate but has a greater affinity for one state or the other.".
- Mixed_inhibition label "Inhibición mixta".
- Mixed_inhibition label "Inibitore di tipo misto".
- Mixed_inhibition label "Mixed inhibition".
- Mixed_inhibition sameAs Inhibición_mixta.
- Mixed_inhibition sameAs Inibitore_di_tipo_misto.
- Mixed_inhibition sameAs m.0470p4.
- Mixed_inhibition sameAs Q6883979.
- Mixed_inhibition sameAs Q6883979.
- Mixed_inhibition wasDerivedFrom Mixed_inhibition?oldid=578792475.
- Mixed_inhibition depiction Mixed_inhibition.svg.
- Mixed_inhibition isPrimaryTopicOf Mixed_inhibition.