1988 Volume 28 Issue 1 Pages 12-15
Three functionally important sites of myosin head, i.e. ATPase site, actin-binding site and SH1 thiol, were identified in its three-dimensional structure by electron microscopy. These sites were also mapped along primary structures of myosin heavy and light chains by chemical methods such as affinity labeling, chemical crosslinking and "end-label fingerprinting".