Abstract
Engineered biocatalysts offer the opportunity to introduce modifications into complex lead molecules and drug candidates in a chemo-, regio- and stereoselective manner that is difficult to accomplish using traditional synthetic organic chemistry. As candidate biocatalysts, the cytochrome P450 enzymes that metabolize drugs and other xenobiotics are amongst the most versatile agents known. Not only can they mediate an exceptional range of biotransformation reactions, but they act on an unparalleled diversity of substrates. However, this versatility comes at the cost of relatively poor catalytic efficiency and low rates of coupling of cofactor consumption to product formation. Directed evolution is being used to redefine the substrate specificity of P450 enzymes while at the same time improving their efficiency, thermostability and other properties. This review will outline the key successes with bacterial P450s used as biocatalysts, examine the studies done to date with mammalian forms, and assess the prospects for exploiting xenobiotic-metabolizing P450s for applications in medicinal chemistry.
Keywords: Drug development, cytochrome P450, directed evolution, biocatalysis, P450 BM3, high throughput screening, metabolite identification, protein engineering.
Current Topics in Medicinal Chemistry
Title:The Evolution of Cytochrome P450 Enzymes as Biocatalysts in Drug Discovery and Development
Volume: 13 Issue: 18
Author(s): Elizabeth M.J. Gillam and Martin A. Hayes
Affiliation:
Keywords: Drug development, cytochrome P450, directed evolution, biocatalysis, P450 BM3, high throughput screening, metabolite identification, protein engineering.
Abstract: Engineered biocatalysts offer the opportunity to introduce modifications into complex lead molecules and drug candidates in a chemo-, regio- and stereoselective manner that is difficult to accomplish using traditional synthetic organic chemistry. As candidate biocatalysts, the cytochrome P450 enzymes that metabolize drugs and other xenobiotics are amongst the most versatile agents known. Not only can they mediate an exceptional range of biotransformation reactions, but they act on an unparalleled diversity of substrates. However, this versatility comes at the cost of relatively poor catalytic efficiency and low rates of coupling of cofactor consumption to product formation. Directed evolution is being used to redefine the substrate specificity of P450 enzymes while at the same time improving their efficiency, thermostability and other properties. This review will outline the key successes with bacterial P450s used as biocatalysts, examine the studies done to date with mammalian forms, and assess the prospects for exploiting xenobiotic-metabolizing P450s for applications in medicinal chemistry.
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Cite this article as:
Gillam M.J. Elizabeth and Hayes A. Martin, The Evolution of Cytochrome P450 Enzymes as Biocatalysts in Drug Discovery and Development, Current Topics in Medicinal Chemistry 2013; 13 (18) . https://dx.doi.org/10.2174/15680266113136660158
DOI https://dx.doi.org/10.2174/15680266113136660158 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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