Single-cell analysis of λ immunity regulation

被引:40
作者
Bæk, K
Svenningsen, S
Eisen, H
Sneppen, K
Brown, S
机构
[1] Univ Copenhagen, Dept Mol Cell Biol, DK-1353 Copenhagen K, Denmark
[2] Fred Hutchinson Canc Res Ctr, Seattle, WA 98109 USA
[3] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark
关键词
bacteriophage lambda; repressor; GFP; single-cell analyses;
D O I
10.1016/j.jmb.2003.09.037
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
We have examined expression of the lambdacI operon in single cells via a rex:: gfp substitution. Although average fluorescence agreed with expectations for expression of X-repressor, fluorescence fluctuated greatly from cell-to-cell. Fluctuations in repressor concentration are not predicted by previous models and are tolerated in part by a regulatory response to DNA damage. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:363 / 372
页数:10
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