K. Hatori et al., ATP HYDROLYSIS AND SLIDING MOVEMENT OF ACTOMYOSIN COMPLEX IN THE PRESENCE OF ETHANOL, Journal of Biochemistry, 117(2), 1995, pp. 264-266
We measured both the ATPase activity of actomyosin complex and the sli
ding velocity of actin filaments on myosin heads under hydrophobic con
ditions in the presence of ethanol. Both the ATPase activity and the s
liding velocity decrease with the increase of ethanol concentration, i
f the ionic strength is not too high. As ionic strength increases, the
re appears an optimum concentration of ethanol that can enhance both t
he ATPase activity and the sliding velocity.