منابع مشابه
Comparison of DNA Replication in Cells from Prokarya and Eukarya
It is now supposed that utilization of DNA as genetic material emerged after an RNA world existed (Gesteland and Atkins 1993) and that all contemporary organisms evolved from a common ancestor related to primitive photosynthetic bacteria (Woese and Pace 1993). It is therefore not surprising that cells in the three major kingdoms, Bacteria, Archaea, and Eukarya, use roughly similar strategies an...
متن کاملEnigmatic variations: divergent modes of regulating eukaryotic DNA replication.
Proteins involved in DNA replication are conserved from yeast to mammals, suggesting that the mechanism was established at an early stage of eukaryotic evolution. In spite of this common origin, recent findings have revealed surprising variations in how replication initiation is controlled, implying that a conserved mechanism has not necessarily resulted in regulatory conservation.
متن کاملDNA-Binding Proteins Regulating pIP501 Transfer and Replication
pIP501 is a Gram-positive broad-host-range model plasmid intensively used for studying plasmid replication and conjugative transfer. It is a multiple antibiotic resistance plasmid frequently detected in clinical Enterococcus faecalis and Enterococcus faecium strains. Replication of pIP501 proceeds unidirectionally by a theta mechanism. The minimal replicon of pIP501 is composed of the repR gene...
متن کاملA dual promoter system regulating λ DNA replication initiation
Transcription and DNA replication are tightly regulated to ensure coordination of gene expression with growth conditions and faithful transmission of genetic material to progeny. A large body of evidence has accumulated, indicating that encounters between protein machineries carrying out DNA and RNA synthesis occur in vivo and may have important regulatory consequences. This feature may be exac...
متن کاملDNA REPLICATION AND SYNTHESIS OF DNABINDING PROTEINS IN THE CHLOROPLASTS OF A CALLUS CULTURE
Continuous labelling of callus with H-thymidine results in intermittent peaks of H-DNA per chloroplast, showing synchrony of division. The increase in H-DNA could be due to several replication rounds, and the drop to successive plastid divisions without intervening DNA synthesis. The level of DNA-binding proteins in the chloroplast parallels the peaks of plastidal DNA synthesis; such pro...
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ژورنال
عنوان ژورنال: Cold Spring Harbor Perspectives in Biology
سال: 2013
ISSN: 1943-0264
DOI: 10.1101/cshperspect.a012930