The essential genome of a bacterium.

The essential genome of a bacterium.
复制标题

DOI:
10.1038/msb.2011.58
复制
发表时间:
2011-08-30
影响因子:
9.9
通讯作者:
--
中科院分区:
生物学1区
文献类型:
--
作者:

文献摘要

参考文献

被引文献

相似文献

新月形茎杆菌是一种模式生物的集成电路运行的细菌细胞周期。充分发现其基本基因组,包括非编码元件、调控元件和编码元件,是了解细菌细胞完整调控网络的先决条件。通过超饱和转座子诱变和高通量测序,我们以8 bp的分辨率确定了Caulobacter的基本基因组,包括1012个基本基因组特征:480个orf, 402个调控序列和130个非编码元件,包括90个功能未知的基因间片段。富培养基上生长的基本转录回路包括10个转录因子,2个RNA聚合酶sigma因子和1个抗sigma因子。我们确定了细胞周期调控基因的所有必需启动子元件。基本元件优先位于染色体的起源和末端附近。这里使用的高分辨率策略适用于高通量、全基因组必要性研究和广泛种类细菌的大规模遗传扰动实验。
Caulobacter crescentus is a model organism for the integrated circuitry that runs a bacterial cell cycle. Full discovery of its essential genome, including non-coding, regulatory and coding elements, is a prerequisite for understanding the complete regulatory network of a bacterial cell. Using hyper-saturated transposon mutagenesis coupled with high-throughput sequencing, we determined the essential Caulobacter genome at 8 bp resolution, including 1012 essential genome features: 480 ORFs, 402 regulatory sequences and 130 non-coding elements, including 90 intergenic segments of unknown function. The essential transcriptional circuitry for growth on rich media includes 10 transcription factors, 2 RNA polymerase sigma factors and 1 anti-sigma factor. We identified all essential promoter elements for the cell cycle-regulated genes. The essential elements are preferentially positioned near the origin and terminus of the chromosome. The high-resolution strategy used here is applicable to high-throughput, full genome essentiality studies and large-scale genetic perturbation experiments in a broad class of bacterial species.
DOI: 10.1101/gr.097097.109
发表时间: 2009-12-01
期刊: GENOME RESEARCH
影响因子: 7
作者:
Langridge, Gemma C.;Phan, Minh-Duy;Turner, A. Keith
通讯作者: Turner, A. Keith
大肠杆菌K-12的构造框架,单基因敲除突变体:Keio Collection。
DOI: 10.1038/msb4100050
发表时间: 2006
影响因子: 9.9
作者:
通讯作者: --
DOI: 10.1038/nmeth.1377
发表时间: 2009-10
期刊: NATURE METHODS
影响因子: 48
作者:
van Opijnen, Tim;Bodi, Kip L.;Camilli, Andrew
通讯作者: Camilli, Andrew
DOI: 10.1038/sj.emboj.7600927
发表时间: 2006-01-25
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
Collier, J;Murray, SR;Shapiro, L
通讯作者: Shapiro, L
DOI: 10.1126/science.1095191
发表时间: 2004-05-14
期刊: SCIENCE
影响因子: 56.9
作者:
Holtzendorff, J;Hung, D;Shapiro, L
通讯作者: Shapiro, L