BCH Enzymes Ch6

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bkheath
ID:
130979
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BCH Enzymes Ch6
Updated:
2012-01-27 11:26:45
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BCH Enzymes Ch6
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BCH Enzymes
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  1. Additional chemical compenent, such as a inorganic ion or a complex organic or metalloorganic molec that may be required by an enzyme
    cofactor
  2. complex organic or metalloorganic molec
    coenzyme
  3. Coenzyme or metal ion that's very tightly bound or covalently bound to the enzyme protein
    prosthetic group
  4. A complete, catalytically active enzyme together w/its bound coenzyme and/or metal ions
    holoenzyme
  5. protein portion of a holoenzyme
    apoenzyme or apoprotein
  6. Energy derived from enzyme-substrate interaction
    Binding energy
  7. The ability of an enzyme to discriminate b/w a substrate and competing molec
    specificity
  8. When enzyme-substrate interactions replace most or all of the H bonds b/w the substrate and water
    Desolvation
  9. Concentration of substrate that leads to half-maximal velocity
    Km
  10. Max # of enzymatic rxns catalyzed per sec
    Kcat
  11. Type of enzymes which have increased or decreased catalytic activity in response to certain signals, thereby altering the rate of metabolic sequences.
    Regulatory enzymes
  12. Enzymes which function through reversible, noncovalent binding of regulatory compounds, which are generally small metabolites or cofactors
    Allosteric enzymes
  13. Regulatory compounds that are generally small metabolites or cofactors
    Allosteric modulators or allosteric effectors
  14. Regulatory enzymes for which substrate and modulator are identical are called ___
    homotropic
  15. When the modulator is a molecule other than the substrate, the enzyme is called ____
    heterotropic
  16. Enzymes which attach phosphoryl groups to specific aa residues of a protein
    Protein kinases
  17. Enzymes which remove phosphoryl groups
    Protein phosphatases
  18. Inactive precursor of a consensus sequence which is cleaved to form the active enzyme
    Zymogen (or general term is proproteins or proenzymes)

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