The temporal relationship between myosin phosphorylation, contractile force and ATPase activity was studied in skinned preparations from the guinea-pig Taenia coli. When free Calcium concentration [( Ca2+]) was increased from pCa (-log[Ca2+]) 9 to pCa 4.5 at low calmodulin concentration (0.05 microM
Skinned smooth muscle: Time course of force and ATPase activity during contraction cycle
✍ Scribed by K. Güth; M. Gagelmann; J. C. Rüegg
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 336 KB
- Volume
- 40
- Category
- Article
- ISSN
- 1420-682X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Recent theories of inuscular contraction have placed considerable importance on the p a r t played by passive viscoiiselastic factors in the determination of the time course of the response to stimulation. Rozler ('41)' for example, has reported that the time-course of isometric relaxation agrees ex
The effects of 2,3-butanedione monoxime (BDM) were studied in smooth muscle fibres from guinea pig taenia colt. In intact muscle, active force during contractions induced by high-K + was inhibited by about 10% in I mM BDM and by approximately 70% in 10 mM BDM. Intracellular [Ca 2+ ] during contracti