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| Description: In this example, the enzyme catalyzes a cleavage reaction. a. The lock-and-key model. In this early model, the active site of the enzyme fits the substrate as a lock does a key. b. The induced fit model. In this elaboration of the lock-and-key model, both enzyme and substrate are distorted on binding. The substrate is forced into a conformation approximating the transition state; the enzyme keeps the substrate under strain. Picture Stats: Views: 273 Filesize: 35kB Height: 571 Width: 379 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=34369 |