The bacterial cytoskeleton: in vivo dynamics of the actin-like protein Mbl of Bacillus subtilis.

Abstract:

:Mbl is a bacterial actin homolog that controls cell morphogenesis in Bacillus subtilis. A functional GFP-Mbl fusion protein was used to examine the behavior of the helical cables formed by Mbl protein in live B. subtilis cells. The cables undergo dynamic changes during cell cycle progression. They are stable but not rigid while elongating in parallel with cell growth, and they require septum formation to divide/cleave. Fluorescence recovery after photobleaching (FRAP) analysis showed that the cables are continuously remodeled during cell elongation. Turnover occurs along the length of the helical Mbl filaments, with no obvious polarity and a recovery half-time of about 8 min. These findings have important implications for the nature of bacterial cell wall architecture and synthesis.

journal_name

Dev Cell

journal_title

Developmental cell

authors

Carballido-López R,Errington J

doi

10.1016/s1534-5807(02)00403-3

keywords:

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

19-28

issue

1

eissn

1534-5807

issn

1878-1551

pii

S1534-5807(02)00403-3

journal_volume

4

pub_type

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