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Inhibition (irreversible inhibitors (cause damage to enzyme, do not have…
Inhibition
irreversible inhibitors
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when irreversible inhibitor binds to the enzyme, it cause the conformational change of active site, substrate cannot bind to the active site ,enzyme cannot carry out its function ,rate of rxn decrease
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eg. cyanide, mercury, silver
cyanide: bind to the iron cytochrome c oxidase in Electron Transport Chain (ETC), prevent the transfer of electron to oxygen,permanently inhibit synthesis during cellular respiration
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reversible inhibitors
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types
competitive inhibitors
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inhibitor bind to the active site, prevent substrate bind to the enzyme, enzyme-substrate complex does not form, no product, reduce the rate of rxn
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to decrease the effect of inhibitors, decrease the [inhibitors], increase[substrate],more chance to bind to the active site
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removal of the inhibitor, restore activity of enzyme to normal
eg. malonate, isoleucine, ATP
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