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Structure and mechanism of a pyridoxal-dependent transaminase ribozyme

ReferenceBB/C514582/1
Principal Investigator / Supervisor Professor David Hodgson
Co-Investigators /
Co-Supervisors
Institution Durham University
DepartmentChemistry
Funding typeResearch
Value (£) 187,496
StatusCompleted
TypeResearch Grant
Start date 01/10/2005
End date 30/09/2008
Duration36 months

Abstract

A pyridoxamine-dependent transaminase ribozyme that has been isolated through in vitro selection will be studied in detail. Product analysis studies using isotope labelling and/or nanospray-LC-FT-ICR-ESMS will be performed in order to cofirm this transaminase activity using a number of potential substrates. The substrate preferences and general kinetic properties of the ribozyme will be determined using a gel shift assay. The tertiary structure of the ribozyme will be determined using mutant ribozymes, nuclease, chemical modification and metal ion mapping techniques along with photo-cross-linking studies in order to confirm the tertiary structure. Nucleotide analogue interference mapping (NAIM) will be used to determine the catalytic roles of individual functional groups within the ribozyme.

Summary

unavailable
Committee Closed Committee - Biomolecular Sciences (BMS)
Research TopicsStructural Biology
Research PriorityX – Research Priority information not available
Research Initiative X - not in an Initiative
Funding SchemeX – not Funded via a specific Funding Scheme
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