Abstract:
:Several laboratories have demonstrated that activation of drug metabolism by P450s may occur via a mechanism that resembles allosterism from an enzyme kinetic standpoint. Because the effector drug binding site may be located in the same P450 binding pocket where the drug substrate is located, the ability to find and characterize novel effectors (aka heteroactivators) will prove to be important in probing the mechanism of activation. We have used analogues of the prototypical CYP2C9 heteroactivator dapsone to validate a simple docking method that can be used to predict heteroactivators based on ligand binding location in a P450 crystal structure. As proof of concept for the described docking method, a protocol was developed to discover potential heteroactivators from a virtual chemical library through efficient sorting of >40,000 compounds. One of the top-scoring compounds identified was verified to be a CYP2C9 heteroactivator in vitro, and it possessed activity similar to dapsone.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Locuson CW,Gannett PM,Ayscue R,Tracy TSdoi
10.1021/jm060706psubject
Has Abstractpub_date
2007-03-22 00:00:00pages
1158-65issue
6eissn
0022-2623issn
1520-4804journal_volume
50pub_type
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