1,4,8,11-Tetraazoniacyclotetradecane tetrakis(hydrogensulfate)

Temperature and ionic strength dependence of the subunit interactions in vertebrate skeletal myosin. A comparison of the interaction between the alkali light and heavy chains of mammalian and avian myosin.

The stability of the interaction of A1 in myosin and subfragment 1 isolated from fast-twitch mammalian and avian muscles with respect to temperature and ionic strength has been examined. This was done by determining the extent of exchange of the endogenous free A1 light chain into these proteins from the two species. Whereas the extent of exchange at 37 degrees C into mammalian S1, occurring af...