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biochem
Updated: 10/1/2020
biochem
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  • Hi sydney, can you pleaseexplain to me about our topic a while a go. I didn't understand it
  • HMM, you mean the different types of inhibitors?
  • Uhm, yes.
  • Sure. Well, first and foremost we havedifferent types of inhibitors.
  • Oh, sowhat are those?
  • We have the Competitive,Non-competitive, Uncompetitive.
  • The competitive inhibition, an inhibitor that resembles the normal substrate binds to the enzyme, usually at the active site, and prevents the substrate from binding. At any given moment, the enzyme may be bound to the inhibitor, the substrate, or neither, but it cannot bind both at the same time.
  • The other type of inhibition is noncompetitive inhibition . In noncompetitive inhibition, a molecule binds to an enzyme somewhere other than the active site. For example, the amino acid alanine non competitively inhibits the enzyme pyruvate kinase.
  • Uncompetitive inhibitors bind only to the enzyme-substrate complex and not to the free enzyme. Substrate-binding could cause a conformational change to take place in the enzyme and reveal an inhibitor binding site, or the inhibitor could bind directly to the enzyme-bound substrate. In neither case does the inhibitor compete with the substrate for the same binding site, so the inhbition cannot be overcome by increasing the substrate concentration
  • I get it now, thank you!
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