The molecular structure of the fastest myosin from green algae, Chara

被引:52
作者
Morimatsu, M
Nakamura, A
Sumiyoshi, H
Sakaba, N
Taniguchi, H
Kohama, K
Higashi-Fujime, S [1 ]
机构
[1] Nagoya Univ, Dept Mol Biol, Sch Sci, Nagoya, Aichi 4648602, Japan
[2] Gunma Univ, Sch Med, Dept Pharmacol, Gunma 3718511, Japan
[3] Fujita Hlth Univ, Inst Comprehens Med Sci, Div Biomed Polymer Sci, Toyoake, Aichi 4701192, Japan
关键词
D O I
10.1006/bbrc.2000.2391
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Chara myosin in green algae, Chara corallina, is the fastest myosin of all those observed so far. To shed light on the molecular mechanism of this fast sliding, we determined the primary structure of Chara myosin heavy chain (he). It has a motor domain, six IQ motifs for calmodulin binding, a coiled-coil structure to dimerize, and a globular tail. Chara myosin he is very similar to some plant myosins and has been predicted to belong to the class XI. Short loop 1 and loop 2 may account for the characteristics of mechanochemical properties of Chara myosin. (C) 2000 Academic Press.
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收藏
页码:147 / 152
页数:6
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