SUPER HELIX FORMATION OF ACTIN-FILAMENTS IN AN INVITRO MOTILE SYSTEM

被引：31

作者：

TANAKA, Y ^{[1
]}

ISHIJIMA, A ^{[1
]}

ISHIWATA, S ^{[1
]}

机构：

[1] WASEDA UNIV,SCH SCI & ENGN,DEPT PHYS,TOKYO 160,JAPAN

来源：

BIOCHIMICA ET BIOPHYSICA ACTA | 1992年 / 1159卷 / 01期

关键词：

ACTIN FILAMENT; SUPER HELIX FORMATION; MOTILE SYSTEM; MUSCLE CONTRACTION;

D O I：

10.1016/0167-4838(92)90079-S

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：

Muscle contraction results from relative sliding of actin and myosin filaments. However, the possibility that actin filaments twist or rotate during sliding has not yet been experimentally investigated. We found that a super helix of an actin filament is formed in an in vitro motile system. This fact suggests that an actin filament twists and rotates due to a torque component of a sliding force generated at cross-bridges.

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页码：94 / 98

页数：5

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