Structure-based rational design of a phosphotriesterase

Colin J. Jackson, Kahli Weir, Anthony Herlt, Jeevan Khurana, Tara D. Sutherland, Irene Horne, Christopher Easton, Robyn J. Russell, Colin Scott*, John G. Oakeshott

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


In silico substrate docking of both stereoisomers of the pesticide chlorfenvinphos (CVP) in the phosphotriesterase from Agrobacterium radiobacter identified two residues (F131 and W132) that prevent productive substrate binding and cause stereospecificity. A variant (W131H/F132A) was designed that exhibited ca. 480-fold and 8-fold increases in the rate of Z-CVP and E-CVP hydrolysis, respectively, eliminating stereospecificity.

Original languageEnglish
Pages (from-to)5153-5156
Number of pages4
JournalApplied and Environmental Microbiology
Issue number15
Publication statusPublished - Aug 2009
Externally publishedYes

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