Award details

Role of microdomains of ATP and Ca2+ concentration in glucose-triggered insulin secretion

ReferenceC11313
Principal Investigator / Supervisor Professor Guy Rutter
Co-Investigators /
Co-Supervisors
Institution University of Bristol
DepartmentBiochemistry
Funding typeResearch
Value (£) 158,214
StatusCompleted
TypeResearch Grant
Start date 01/04/2000
End date 01/04/2003
Duration36 months

Abstract

Glucose may trigger insulin release from islet beta-cells by increasing the intracellular ATP/ADP ratio. We have established novel bioluminescence imaging technologies with recombinant firefly luciferase to measure free ATP concentrations in single living beta-cells. In this project we will determine the importance of (ATP) changes in the mitochondrial matrix, the mitochondrial inter membrane space and on the surface of secretory vesicles. We will also engineer luciferase in order to measure ATP/ADP ratios in each compartment. Finally we will use targeted fluorescent proteins to assess the importance of the 3- dimensional relationships between the endoplasmic reticulum, the mitochondria, and secretory vesicles.

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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