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Unformatted text preview: 4. Metal ion = transfer electrons while bound to enzyme V. Enzyme Helpers a. Prosthetic Groups i. Non-amino acid permanently bound to enzymes b. Cofactors i. Inorganic ions bound to enzyme c. Coenzymes i. Carbon-containing small temporarily bound to enzyme ii. Add/remove things from substrate iii. ATP/ADP VI.Reaction Rate and [Substrate] a. Directly proportional VII. Enzyme Regulation a. Inhibitors i. Irreversible 1. Covalently bonded to side chains of active site in enzyme ii. Reversible 1. Competitive a. Compete with natural substrate for active site and prevent its entrance 2. Non-competitive a. Bind at another site on enzyme b. But can change enzyme shape to hide active site from substrate or allow it to bind, but not as well = rate = slower...
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- Fall '08