Concept

Rolling circle replication

Related publications (65)

DNA supercoiling and its role in DNA decatenation and unknotting

Chromosomal and plasmid DNA molecules in bacterial cells are maintained under torsional tension and are therefore supercoiled. With the exception of extreme thermophiles, supercoiling has a negative sign, which means that the torsional tension diminishes t ...

Oxford University Press2010

Interplay of DNA supercoiling and catenation during the segregation of sister duplexes

Andrzej Stasiak, Guillaume Witz, Pablo Hernandez

The discrete regulation of supercoiling, catenation and knotting by DNA topoisomerases is well documented both in vivo and in vitro, but the interplay between them is still poorly understood. Here we studied DNA catenanes of bacterial plasmids arising as a ...

Oxford University Press2009

Imaging of mRNA in Live Cells Using Nucleic Acid-Templated Reduction of Azidorhodamine Probes

Christoph Merten, Katarzyna Irena Gorska

Nucleic acid-templated reactions leading to a fluorescent product represent an attractive strategy for the detection and imaging of cellular nucleic acids. Herein we report the use of a Staudinger reaction to promote the reduction of profluorescent azidorh ...

2009

Telomerase is essential to alleviate pif1-induced replication stress at telomeres

Joachim Lingner

Pif1, an evolutionarily conserved helicase, negatively regulates telomere length by removing telomerase from chromosome ends. Pif1 has also been implicated in DNA replication processes Such as Okazaki fragment maturation and replication fork pausing. We fi ...

2009

Preparation of templates for nucleic acid sequencing

Gerardo Turcatti

The invention relates to methods of generating templates for a nucleic acid sequencing reaction which comprise: providing at least one double-stranded nucleic acid molecule, wherein both strands of the double-stranded nucleic acid molecule are attached to ...

2009

How adeno-associated virus Rep78 relocalises Cdc25B to arrest the cell cycle

Florence Magnin

Adeno-associated virus (AAV) is a small DNA virus belonging to the family of the parvoviridae. AAV infects the human population, however no disease has been associated with this virus. On the contrary, AAV was reported to have oncosuppressive activities. T ...

EPFL2009

Phi29 polymerase based random amplification of viral RNA as an alternative to random RT-PCR

Stewart Cole, Iain Old

BACKGROUND: Phi29 polymerase based amplification methods provides amplified DNA with minimal changes in sequence and relative abundance for many biomedical applications. RNA virus detection using microarrays, however, can present a challenge because phi29 ...

2008

Chemical approach for the study of the 'kissing complex' of Moloney murine leukaemia Virus

Sébastien Porcher

The replication of Moloney murine leukaemia virus relies on the formation of a stable homodimeric 'kissing complex' of a GACG tetraloop interacting through only two C center dot G base pairs flanked of 5'-adjacent Unpaired adenosines A9. Previous NMR inves ...

2008

An affinity oligonucleotide displacement strategy to purify ribonucleoprotein complexes applied to human telomerase

Joachim Lingner

Antisense oligonucleotides have been used to study the structure and function of small nuclear ribonucleoprotein (snRNP) complexes and were adapted and modified for the purification of a variety of RNPs. We describe methods for recombinant expression and r ...

Humana Press2008

Differential gene expression between adult queens and workers in the ant Lasius niger

Johannes Gräff, Laurent Keller

Ants and other social insects forming large societies are generally characterized by marked reproductive division of labour. Queens largely monopolize reproduction whereas workers have little reproductive potential. In addition, some social insect species ...

Wiley-Blackwell2007

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