Introduction
FAS-II System
Mechanism of Action
Structure
Crystal structures of InhA reveal a with separate ligand binding sites in each subunit. Each subunit features a single domain with a central core that supports a NADH binding site. The alpha6 and alpha7 helices of the monomer form one side of the fatty acyl substrate binding crevice of InhA. Within this binding crevice, many hydrophobic side chains from the amino acids involved in forming the substrate binding loop, , interact with the substrates. One side of this cavity is open and exposed to solvent, which allows the substrates to access the binding pocket of this enzyme. The size of the substrate binding loop is a primary determinant of the ability of InhA to distinguish between shorter and longer substrates and provide for the enoyl-ACP reductase reaction.
[[Image:Fatty Acyl Binding Crevice.jpg|200 px|middle|thumb|
Fatty Acyl Binding Crevice
4ohu]
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Fatty Acyl Binding Crevice
Catalytic Triad
Hydrogen Bonding Interactions
Clinical Applications
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