Chemical Mechanisms in Enzyme Catalysis - Chemical Mechanisms for Transition State Stabilization

5 important questions on Chemical Mechanisms in Enzyme Catalysis - Chemical Mechanisms for Transition State Stabilization

What are the 5 chemical mechanisms that stabilize the transition state?

  1. Approximation of reactants
  2. Covalent catalyisis
  3. General acid-base catalysis
  4. Conformational disortion
  5. Preorganization of the active site for transition state complementarity

How can you increase the speed of the enzymatic reaction with biomolecules?

Substrate A and substrate B need to bind together, to speed this up you can increase the concentration of A and B or higher the temperature.

What do you need in order to bind biomolecules to the enzyme?

  1. Orbital rearrangement
  2. VDW repulsion should be overcome
  3. Change of electronic orbitals
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What kind of acids and bases are there?

acid: specific and general acid
base: specific and general base

The difference is that a specific acid / base has an immediate influence on the reaction

What is preorganized active site complementarity to transition state?

Binding to substrate in transition state is favored over normale binding and therefore you will get more free energy.

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