학술논문

Conformational Effects in Enzyme Catalysis: Reaction via a High Energy Conformation in Fatty Acid Amide Hydrolase
Document Type
article
Source
Biophysical Journal. 92(2)
Subject
Biochemistry and Cell Biology
Biological Sciences
Chemical Sciences
Theoretical and Computational Chemistry
Affordable and Clean Energy
Amidohydrolases
Binding Sites
Computer Simulation
Energy Transfer
Enzyme Activation
Models
Chemical
Models
Molecular
Protein Binding
Protein Conformation
Structure-Activity Relationship
Physical Sciences
Biophysics
Biological sciences
Chemical sciences
Physical sciences
Language
Abstract
Quantum mechanics/molecular mechanics and molecular dynamics simulations of fatty acid amide hydrolase show that reaction (amide hydrolysis) occurs via a distinct, high energy conformation. This unusual finding has important implications for fatty acid amide hydrolase, a key enzyme in the endocannabinoid system. These results demonstrate the importance of structural fluctuations and the need to include them in the modeling of enzyme reactions. They also show that approaches based simply on studying enzyme-substrate complexes can be misleading for understanding biochemical reactivity.