Article
Structural kinetics of cardiac troponin C mutants linked to familial hypertrophic and dilated cardiomyopathy in troponin complexes.
The Journal of biological chemistry - 8 Feb 2008
Dong Wen-Ji, Xing Jun, Ouyang Yexin, An Jianli, Cheung Herbert C
Abstract excerpt
The key events in regulating cardiac muscle contraction involve Ca(2+) binding to and release from cTnC (troponin C) and structural changes in cTnC and other thin filament proteins triggered by Ca(2+) movement. Single mutations L29Q and G159D in human cTnC have been reported to associate with familial hypertrophic and dilated cardiomyopathy, respectively. We have examined the effects of these individual mutations...
Topics
- Actomyosin
- Animals
- Calcium
- Cardiomyopathy, Dilated
- Chickens
- Cyclic AMP-Dependent Protein Kinases
- Fluorescence Resonance Energy Transfer
- Hypertrophy
- Kinetics
- Mutation
- Myocardium
