In contrast to the myosins of vertebrate skeletal muscle, molluscan myosins are regulated molecules whose enzymatic activity is switched on by the direct binding of Ca2+. The head portion (S1) of the molecule consists of a motor domain and a regulatory domain (RD) containing a 'regulatory' and an 'essential' light chain (RLC and ELC, respectively) ...
In contrast to the myosins of vertebrate skeletal muscle, molluscan myosins are regulated molecules whose enzymatic activity is switched on by the direct binding of Ca2+. The head portion (S1) of the molecule consists of a motor domain and a regulatory domain (RD) containing a 'regulatory' and an 'essential' light chain (RLC and ELC, respectively). The structures of scallop myosin RD with bound Ca2+, as well as the S1 fragment of chicken skeletal muscle myosin, have been determined previously to 2.8 A resolution.
Related Citations:
Structure of the Regulatory Domain of Scallop Myosin at 2.8 A Resolution Xie, X., Harrison, D.H., Schlichting, I., Sweet, R.M., Kalabokis, V.N., Szent-Gyorgyi, A.G., Cohen, C. (1994) Nature 368: 306
Isolation of the Regulatory Domain of Scallop Myosin: Role of the Essential Light Chain in Calcium Binding Kwon, H., Goodwin, E.B., Nyitray, L., Berliner, E., O'Neall-Hennessey, E., Melandri, F.D., Szent-Gyorgyi, A.G. (1990) Proc Natl Acad Sci U S A 87: 4771
Organizational Affiliation:
Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA 02254-9110, USA.
Download Mendeley
