Permissive zones for the centromere-binding protein ParB on the Caulobacter crescentus chromosome
Permissive zones for the centromere-binding protein ParB on the Caulobacter crescentus chromosome
复制标题
新月柄杆菌染色体上着丝粒结合蛋白 ParB 的允许区
DOI:
10.1101/172932
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Tran N
中科院分区:
文献类型:
--
作者:
Tran N
Proper chromosome segregation is essential in all living organisms. InCaulobacter crescentus, the ParA–ParB–parSsystem is required for proper chromosome segregation and cell viability. The bacterial centromere-likeparSDNA locus is the first to be segregated following chromosome replication.parSis bound by ParB protein, which in turn interacts with ParA to partition the ParB-parSnucleoprotein complex to each daughter cell. Here, we investigated the genome-wide distribution of ParB on theCaulobacterchromosome using a combination ofin vivochromatin immunoprecipitation (ChIP-seq) andin vitroDNA affinity purification with deep sequencing (IDAP-seq). We confirmed two previously identifiedparSsites and discovered at least three more sites that cluster ∼8 kb from the origin of replication. We showed thatCaulobacterParB nucleates atparSsites and associates non-specifically with ∼10 kb flanking DNA to form a high-order nucleoprotein complex on the left chromosomal arm. Lastly, using transposon mutagenesis coupled with deep sequencing (Tn-seq), we identified a ∼500 kb region surrounding the nativeparScluster that is tolerable to the insertion of a secondparScluster without severely affecting cell viability. Our results demonstrate that the genomic distribution ofparSsites is highly restricted and is crucial for chromosome segregation inCaulobacter.
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DOI:
--
发表时间:
--
期刊:
--
影响因子:
--
作者:
Tung B K Le
通讯作者:
Tung B K Le
影响因子:
3.3
作者:
Ouellette, Scot P.;Gauliard, Emilie;Ladant, Daniel
通讯作者:
Ladant, Daniel
DOI:
10.1073/pnas.120163297
发表时间:
2000-06-06
影响因子:
11.1
作者:
Datsenko, KA;Wanner, BL
通讯作者:
Wanner, BL
影响因子:
9.3
作者:
Sanchez, Aurore;Cattoni, Diego I.;Bouet, Jean-Yves
通讯作者:
Bouet, Jean-Yves
影响因子:
4.5
作者:
Lagage V;Boccard F;Vallet-Gely I
通讯作者:
Vallet-Gely I