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Structural changes in regulated myosin

ReferenceC09206
Principal Investigator / Supervisor Professor John Trinick
Co-Investigators /
Co-Supervisors
Professor Peter Knight
Institution University of Leeds
DepartmentHuman Biology
Funding typeResearch
Value (£) 262,083
StatusCompleted
TypeResearch Grant
Start date 06/02/1998
End date 06/02/2001
Duration36 months

Abstract

Control of smooth muscle contraction and many forms of cellular motility relies on regulation of the motor protein myosin, yet the structural mechanism of this control is unknown. Using low dose electron microscopy, including frozen hydrated unstained specimens, large numbers of high resolution images will be recorded of regulated myosin and modified recombinant molecules in the on and off states. Computer analysis by single particle averaging will reveal consistent details in the structure while suppressing random variations. Comparison of on and off states with each other and the atomic structure of the isolated head will reveal the differences within the myosin heads and in their arrangement that underlie the switching mechanism.

Summary

unavailable
Committee Closed Committee - Biochemistry & Cell Biology (BCB)
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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