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J Integr Plant Biol, 1999, 41 (12): -, Research Article
Identification of Myosin on the Surface of Wheat Mitochondria
ZHAO He-Ping, LIU Ai-Xiao, REN Dong-Tao, LIU Guo-Qin and YAN Long-Fei (YEN Lung Fei)
doi:
Abstract
It was demonstrated that myosin was associated with the surface of mitochondria in wheat ( Triticum aestivum L. ). Assays of polyacrylamide gel electrophoresis and Western blotting have shown that a polypeptide with molecular weight of 210 kD could be recognized by a polyclonal antibody against hmnan muscle myosin. It was found that the ATPase activity of mitochondrial suspension could be stimulated by F-actin isolated from chicken muscle, which indicated that there was myosin on the surface of wheat mitochondria. This result was confirmed by electron microscopic observation: mitochondria treated with N-ethylmaleimide (NEM) could be wrapped by the F-actin.
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