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Pasteurella multocida toxin as a tool for studying Gq signal transduction
1Department of Microbiology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. bawilson@life.uiuc.edu
Reviews of Physiology, Biochemistry and Pharmacology
|September 30, 2004
Abstract:
Pasteurella multocida toxin (PMT) stimulates and subsequently uncouples phospholipase C (PLC) signal transduction through its selective action on the Galphaq subunit. This review summarizes what is currently known about the molecular action of PMT on Gq and the resulting cellular effects. Examples are presented illustrating the use of PMT as a powerful tool for dissecting the molecular mechanisms involving pertussis toxin (PT)-insensitive heterotrimeric G proteins.