Wikman-Coffelt, J., Fábián, F. & Mason, D. T.

Freezing and thawing of myosin with no alteration in ATPase activity.

Prep Biochem 10, 97-101.

Myosin can be frozen in liquid nitrogen (-70 degrees C) and stored at this temperature for 5 months with no loss in K+, Ca2+, or actin + Mg2+ -stimulated ATPase activities. Furthermore, myosin can be refrozen and thawed in this manner for at least 5 consecutive times with no alteration in ATPase activity.

Pintér, K., Jancsó, A. & Bíró, E. N.

A simple procedure for the preparation of electrophoretically homogeneous alpha-actin from rabbit muscle.

Acta Biochim Biophys Acad Sci Hung 15, 217-22.

A simplified procedure for the preparation of alpha-actinin from rabbit skeletal muscle is described. Use is made of the observation that actin is completely eliminated by denaturation, when myofibrils are dissolved in 0.6 M MgCl2 and thereafter MgCl2 is removed by dialysis.

Hegyi, G. & Venyaminov, S. Y.

Absence of gross changes in the secondary structure of actin at G--F transition.

FEBS Lett 109, 134-6.