A Rubbery Pocket
a: Active site ~
b: rubbery key hole
What: The common analogy is that an enzyme active size and substrate is like a key and and lock. While this is close, the idea needs to be extended. The key-lock association implies that the molecules in question are as rigid as steel. This is just not the case. Organic molecules are more rubbery than they are rigid. If pull someone tongue you'll see this action. So if you want to realistically visualize organic molecules such as an enzyme and a substrate, try to visualize them as a lock and key made of rubber. They are somewhat specific, but with enough pressure they will deform.
Useful?
Writer: Lucretia
LCC:
Where: Reference Link Has Evaporated
Date: Apr 30 2013 10:26 AM
# 2797 Critique Analogy