منابع مشابه
Nucleoid-associated proteins in Crenarchaea.
Architectural proteins play an important role in compacting and organizing the chromosomal DNA in all three kingdoms of life (Eukarya, Bacteria and Archaea). These proteins are generally not conserved at the amino acid sequence level, but the mechanisms by which they modulate the genome do seem to be functionally conserved across kingdoms. On a generic level, architectural proteins can be class...
متن کاملDistribution of gyrase and topoisomerase IV on bacterial nucleoid: implications for nucleoid organization
We explored the existence of nucleoid DNA loops in Escherichia coli by studying the distribution of bacterial type II topoisomerases (Topo IIs). Norfloxacin-induced high molecular weight (HMW) DNA fragmentation of nucleoid, an event reminiscent of the excision of eukaryotic chromosomal DNA loops mediated by topoisomerase II (TOP2). The size of the HMW DNA fragments induced by norfloxacin was af...
متن کاملWelfare, Autonomy, and the Autonomy Fallacy
In this paper, I subject the claim that autonomous choice is an intrinsic welfare benefit to critical scrutiny. My argument begins by discussing perhaps the most influential argument in favor of the intrinsic value of autonomy: the argument from deference. In response, I hold that this argument displays what I call the ‘Autonomy Fallacy’: the argument from deference has no power to support the ...
متن کاملStructure and dynamics of the crenarchaeal nucleoid.
Crenarchaeal genomes are organized into a compact nucleoid by a set of small chromatin proteins. Although there is little knowledge of chromatin structure in Archaea, similarities between crenarchaeal and bacterial chromatin proteins suggest that organization and regulation could be achieved by similar mechanisms. In the present review, we describe the molecular properties of crenarchaeal chrom...
متن کاملFtsZ Placement in Nucleoid-Free Bacteria
We describe the placement of the cytoplasmic FtsZ protein, an essential component of the division septum, in nucleoid-free Escherichia coli maxicells. The absence of the nucleoid is accompanied in maxicells by degradation of the SlmA protein. This protein, together with the nucleoid, prevents the placement of the septum in the regions occupied by the chromosome by a mechanism called nucleoid oc...
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ژورنال
عنوان ژورنال: Communicative & Integrative Biology
سال: 2008
ISSN: 1942-0889
DOI: 10.4161/cib.1.1.6622