TRANSFORMATIONS IN ISOLATED POLYHOOKS

被引：20

作者：

KAGAWA, H

AIZAWA, SI

ASAKURA, S

机构：

[1] Institute of Molecular Biology Faculty, Science Nagoya University, Nagoya

来源：

JOURNAL OF MOLECULAR BIOLOGY | 1979年 / 129卷 / 02期

关键词：

D O I：

10.1016/0022-2836(79)90286-9

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：

Polyhooks from certain non-flagellated mutants of Salmonella and Escheriohia coli are known to be helix-shaped under physiological conditions. However, two non-helical forms were found to occur in isolated polyhooks under appropriate conditions. One form is straight, and appeared when the pH was decreased to 3.2 or lower. The helical-to-straight transformation was reversible. The other form is a doughnut with a fairly constant diameter of above 0.1 μm, which was produced when polyhooks were heated at 75 °C in the absence of salts. © 1979.

引用

页码：333 / 336

页数：4

共 13 条

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