Effects of 2,3-butanedione monoxime on the crossbridge kinetics in frog single muscle fibres
β Scribed by M. A. Bagni; G. Cecchi; F. Colomo; P. Garzella
- Publisher
- Springer Netherlands
- Year
- 1992
- Tongue
- English
- Weight
- 663 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0142-4319
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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
2,3-butanedione 2-monoxime (BDM) inhibits muscle contraction and actomyosin ATPase both in fibres and in solution. It is potentially useful as a tool for exploring weak interactions between actin and myosin. We have examined the effect of BDM on several key steps of the myosin subfragment-1 and acto