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Kaneko et al., Biochem Biophys Res Commun 2000 : Unphosphorylated calponin binds to F-actin and inhibits the actin activated myosin ATPase activity ; these properties are lost on phosphorylation
Winder et al., Biochem J 1992 : Caldesmon had no significant influence on the calponin induced inhibition of the smooth muscle actomyosin ATPase , nor did calponin have a significant effect on caldesmon induced inhibition
Hossain et al., Biochemistry 2006 : Inhibition of myosin II ATPase also resulted in the degradation of h2-calponin in alveolar cells, showing a determining role of the tension in the actin cytoskeleton
Makuch et al., Biochem J 1991 : CA(2+)-calmodulin competed with actin for calponin binding, and at high molar excess dissociated the calponin-actin complex and reversed the calponin induced inhibition of actomyosin ATPase activity
Nishida et al., FEBS Lett 1990 : The presence of calponin reduced the Vmax value for thin filament activated myosin Mg-ATPase activity by 33 % without a significant change in Km value
Abe et al., J Biochem 1990 : Effect of calponin on actin activated myosin ATPase activity
Winder et al., J Biol Chem 1990 : Phosphorylation of calponin by either kinase resulted in loss of its ability to inhibit the actomyosin ATPase
Mezgueldi et al., J Biol Chem 1995 : Earlier, we proposed that the interaction of gizzard calponin with F-actin, promoting the inhibition of the actomyosin ATPase activity, involves the NH2-terminal portion of the calponin segment Ala145-Tyr182 ( Mezgueldi, M., Fattoum, A., Derancourt, J., and Kassab, R. ( 1992 ) J. Biol. Chem. 267, 15943-15951 )
Gong et al., J Biochem 1993 : A mutant alpha calponin with a replacement in the putative inhibitory region ( residues 146-171 ) has impaired ability to inhibit the acto-subfragment-1 ATPase activity, suggesting that this region of calponin may be involved in the modulation of the actin-myosin interactions
Lin et al., J Biochem 1993 : Stimulatory effect of calponin on myosin ATPase activity
Ichikawa et al., Biochem Biophys Res Commun 1993 : Functionally, calponin dephosphorylated by MBP recovered its inhibitory effect on the actin activated Mg ( 2+ ) -ATPase activity of myosin