DNA supercoiling
Co operative roles for DNA supercoiling and nucleoid associated proteins in the regulation of bacterial transcription
... the DNA is a change in the twisting of DNA around its helical axis that can facilitate the formation of single-stranded ‘bubbles’ as hydrogen bonds between pairs of bases are ...the DNA to become ...
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DNA Supercoiling Regulates the Motility of Campylobacter jejuni and Is Altered by Growth in the Presence of Chicken Mucus
... by DNA supercoil- ing levels. As DNA supercoiling appeared to influence motility, reverse transcription-PCR (RT-PCR) was used to examine the effect of DNA relaxation on the transcription of a ...
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A quantum-chemical analysis of the relationships between electronic structure and cytotoxicity, GyrB inhibition, DNA supercoiling inhibition and anti- tubercular activity of a series of quinoline–aminopiperidine hybrid analogues
... We present here the results of the application of a formal method relating the electronic structure of a series of quinoline–aminopiperidine hybrid analogues with cytotoxicity, GyrB inhibition, DNA ...
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DNA supercoiling and the Lrp protein determine the directionality of fim switch DNA inversion in Escherichia coli K 12
... on DNA inversion (5, 17, 22, 34) ...fimS DNA to enhance the formation of a synaptic complex for ...Similarly, DNA supercoiling might be expected to influence recombination efficiency through ...
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DNA supercoiling and transcription: a two way street
... the DNA gyrase inhibitor coumermycin ...between DNA gyrase and nu- cleoid associated proteins in ...palindromic DNA sequences [124, ...mediated DNA supercoiling cooperate in recruiting ...
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Inhibition of retrovirus DNA supercoiling in interferon-treated cells.
... 120-126 0022-538X/83/100120-07$02.00/0 Copyright 3 1983, American Society for Microbiology Inhibition of Retrovirus DNA Supercoiling in InterferonTreated Cells MAHMOUD HULEIHEL AND MORDE[r] ...
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Structural Coupling between RNA Polymerase Composition and DNA Supercoiling in Coordinating Transcription: a Global Role for the Omega Subunit?
... high-affinity DNA sites in the gene promoter regions ...to DNA superhelicity (3, ...of DNA relaxation ...the DNA by the E. coli DNA gyrase depends on the ATP/ADP ratio, such that the ...
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In Vitro Inhibitory Effect of Methanol Extracts of Chinese Herbal Drugs on Supercoiling Activity of Bacterial DNA Gyrase
... against supercoiling activity of gy- rase, while those of S5 and S10 were less effective, and those of S3, S4, S9, S13 and S15 showed no obvious inhibitory effect on supercoiling activity of gyrase com- ...
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A fundamental regulatory mechanism operating through OmpR and DNA topology controls expression of Salmonella pathogenicity islands SPI 1 and SPI 2
... Although OmpR-EnvZ is the archetypal two component signal transduction pathway, the environmental stimulus of EnvZ kinase activity remains unclear [35], and this stimulus appears to differ between E. coli and S. enterica ...
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Reverse Engineering and Quantifying Context Effects in Synthetic Gene Networks
... from DNA supercoiling ...vitro supercoiling experiments and show that by relaxing positive supercoiling in the plasmids, we can significantly reduce the context effects in gene ...and ...
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BACTERIAL DNA GYRASE IS NOT THE TARGET OF QUINOLINE-BASED ANTI-TUBERCULOSIS COMPOUNDS
... using DNA gyrase positive E. coli strains, we presumed that bacterial DNA gyrase might be a probable target of ...coli DNA gyrase as an alternative to DNA gyrase from the pathogenic ...
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De novo assembly of potential linear artificial chromosome constructs capped with expansive telomeric repeats
... centromeric DNA and telomeric DNA fragments into a single large DNA ...telomeric DNA fragments because telomeric repeats can not be stably maintained in Escherichia ...centromeric DNA ...
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DNA looping by two 5-methylcytosine-binding proteins quantified using nanofluidic devices
... unmethylated DNA without labels and methylated DNA with labels exhibit the same exten- ...- DNA carries only about 300 CpG site in 48 kbp ...for DNA-binding pro- teins with multiple binding ...
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Quantitative determination of DNA bridging efficiency of chromatin proteins
... of DNA loop formation is the bridging of two separate DNA double ...Detecting DNA bridge formation generally involves the use of complex single-molecule techniques (atomic force microscopy, magnetic, ...
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Foundations of dna and biotechnology466
... F4-2: “a lot of studies that focus the significance of top management support like a necessary to element to improve ERP implementation Hartline et al., 2000 p.35.” F4-3: “An analogy bet[r] ...
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DNase Specific for Uracil-Containing Bacteriophage DNA
... subtilis DNA, calf thymus DNA, T4 DNA, and PBS 15 DNA were not hydrolyzed aThe DNase activity was assayed by the optical by the purified enzyme Table 3.. the addition of thymus DNA to th[r] ...
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DNA FROM MAIZE WITH AND WITHOUT B CHROMOSOMES: A COMPARATIVE STUDY
... The present investigation was undertaken in the hope that a detailed comparison of DNA bouyant density distribution, DNA renaturation kinetics and DNA/DNA duplexes formed between 5B[r] ...
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DNA Damage Signaling Is Required for Replication of Human Bocavirus 1 DNA in Dividing HEK293 Cells
... and DNA repair DNA polymerases are recruited into centers of viral DNA ...HBoV1 DNA. We examined the localization of key S-phase (DNA replication) factors, including proliferating cell ...
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Characterization of the inhomogeneous DNA in virions of bacteriophage Mu by DNA reannealing kinetics.
... coli DNA in Mu DNA from the reassociation of labeled bacterial DNA, we analyzed the kinetics of reassociation of labeled bacterial DNA in the presence of a measured amount of cold bacter[r] ...
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Analysis of Data Hiding for DNA Based Cryptography
... Deoxyribonucleic acid or DNA is a biological molecule that contains genetic information of living organisms.it contains the repeating cell known as nucleotides. each nucleotide is made of sugar and a phosphate ...
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