Award details

Design of bioactive sesquiterpene-based chemical signals with enhanced stability

ReferenceBBS/E/C/00005105
Principal Investigator / Supervisor Dr Michael Birkett
Co-Investigators /
Co-Supervisors
Institution Rothamsted Research
DepartmentRothamsted Research Department
Funding typeResearch
Value (£) 22,126
StatusCompleted
TypeInstitute Project
Start date 01/01/2011
End date 31/08/2014
Duration44 months

Abstract

We have previously extensively investigated the active site of terpene synthases by a combination of protein engineering and synthetic chemistry. From this work, we hypothesize that subtle alterations to this chemical space will allow the docking and catalytic conversion of analogues of the natural precursor farnesyl diphosphate (FDP), and lead rationally to the production of analogues of biologically active naturally-occurring sesquiterpenes. Signalling between organisms via small lipophilic molecules (SLMs), e.g. pheromones and other semiochemicals, can have profound impacts on development and, for higher organisms including human and other animals, on behaviour. Our chemical ecology work shows that plant-produced sesquiterpenes can be semiochemicals that modify the behaviour of major world pests, such as aphid pests attacking arable crops and pests of livestock and human health. This includes the highly unstable and volatile sesquiterpene hydrocarbon (S)-germacrene D. We will investigate the chemical space of (S)-germacrene D synthase (GDS) using a synthetic biology approach. Investigations will involve a combination of introducing FDP analogues to GDSs, active site modification of wild type GDS, and production of a library of (S)-germacrene D analogues with greater stability.

Summary

unavailable
Committee Not funded via Committee
Research TopicsStructural Biology, Synthetic Biology
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
terms and conditions of use (opens in new window)
export PDF file