Hydrodynamical Resistance of a Smooth Muscle Myosin Molecule and Its Application to Conformational Changes Associated with Phosphorylation
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概要
- 論文の詳細を見る
Hydrodynamical calculation of the drag and side forces on a single myosin molecule in an incompressible viscous fluid, which is placed in an otherwise uniform flow along its rod direction, is made on the basis of the Stokes equation. The beads model approximation is employed to describe various conformation of the heads and tail of this macromolecule. The results are compared with an electrophoretic measurement of an intact myosin of the smooth muscle in a pyrophosphate polyacrylamide gel. Biochemical analysis is combined to give the relation between the phosphorylation of the myosin regulatory light chains and the orientations of the two heads relative to the rod axis. Possible actin-and-myosin interaction mechanisms which may cause the smooth muscle contraction are discussed.
- 社団法人日本物理学会の論文
- 1993-07-15
著者
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Takano-ohmuro Hiromi
Department Of Pharmacology Faculty Of Medicine The University Of Tokyo
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Sano Osamu
Department Of Applied Physics Tokyo University Of Agriculture And Technology
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Takano‐ohmuro H
Department Of Pharmacology Faculty Of Medicine University Of Tokyo
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Takano‐ohmuro H
Univ. Tokyo Tokyo Jpn
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Sano Osamu
Department Of Applied Physics Faculty Of Engineering University Of Tokyo
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Sano Osamu
Department Mining and Mineral Engineering
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