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Control by phosphorylation: structural studies on phosphorylase kinase

ReferenceB11748
Principal Investigator / Supervisor Professor Dame Louise Johnson
Co-Investigators /
Co-Supervisors
Professor Martin Noble
Institution University of Oxford
DepartmentBiochemistry
Funding typeResearch
Value (£) 140,824
StatusCompleted
TypeResearch Grant
Start date 01/08/1999
End date 01/08/2002
Duration36 months

Abstract

The structure determination of phosphorylase kinase kinase domain (PhK) in complex with peptide substrate and inactive ATP analogue has provided insights recognition, control and catalysis. New studies are aimed at providing a deeper analysis of the catalytic mechanism through site directed mutagenesis and structure determination of ternary complexes with transition state analogues and the complex with the protein substrate, glycogen phosphorylase. Structural studies on the full-length catalytic subunit in complex with calmodulin will elucidate the control of PhK by calcium. The structure of the quaternary holoenzyme complex (MW 1.3 MDa) will be investigated with combined X-ray and EM methods.

Summary

unavailable
Committee Closed Committee - Biomolecular Sciences (BMS)
Research TopicsX – not assigned to a current Research Topic
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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