sentences:  Induced fit may be beneficial to the fidelity of molecular recognition in the presence of competition and noise via the conformational proofreading mechanism
  .These conformational changes also bring catalytic residues in the active site close to the chemical bonds in the substrate that will be altered in the reaction.After binding takes place, one or more mechanisms of catalysis lowers the energy of the reaction's transition state, by providing an alternative chemical pathway for the reaction.