How Is It Coupled to the Interaction between Myosin and Actin

Phosphorylation of LC20 in smooth muscle precedes tension development (Driska et al., 1981 Barany 

Diphosphorylation of LC20 has been observed in intact smooth muscles such as carbachol- or oxytocin-stimulated rat uterus (Bardny et al, 1985c), K+-stimulated porcine carotid artery (Erdodi et al., 1987), carbachol-stimulated bovine trachea (Colburn et al., 

prostaglandin F2 -stimulated rabbit thoracic artery (Seto et al, 1990), phorbol dibutyrate (PDBu)-treated carotid artery (Rokolya et al., 1991), or endo-thelin-l-stimulated lamb tracheal muscle (Katoch, 

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