کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2036725 1072278 2009 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Recruitment of SMC by ParB-parS Organizes the Origin Region and Promotes Efficient Chromosome Segregation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوشیمی، ژنتیک و زیست شناسی مولکولی (عمومی)
پیش نمایش صفحه اول مقاله
Recruitment of SMC by ParB-parS Organizes the Origin Region and Promotes Efficient Chromosome Segregation
چکیده انگلیسی

SummaryOrganization and segregation of replicated chromosomes are essential processes during cell division in all organisms. Similar to eukaryotes, bacteria possess centromere-like DNA sequences (parS) that cluster at the origin of replication and the structural maintenance of chromosomes (SMC) complexes for faithful chromosome segregation. In Bacillus subtilis, parS sites are bound by the partitioning protein Spo0J (ParB), and we show here that Spo0J recruits the SMC complex to the origin. We demonstrate that the SMC complex colocalizes with Spo0J at the origin and that insertion of parS sites near the replication terminus targets SMC to this position leading to defects in chromosome organization and segregation. Consistent with these findings, the subcellular localization of the SMC complex is disrupted in the absence of Spo0J or the parS sites. We propose a model in which recruitment of SMC to the origin by Spo0J-parS organizes the origin region and promotes efficient chromosome segregation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 137, Issue 4, 15 May 2009, Pages 697–707
نویسندگان
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