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Concept

Prokaryota

Publications associées (30)

Mitochondrial activity detected by cantilever based sensor

Giovanni Dietler, Sandor Kasas, Petar Stupar, Wojciech Chomicki

Our team recently demonstrated that cantilever based devices can detect signature of life in a chemistry independent manner. In this technique, the organism of interest is attached onto a classical AFM cantilever. If alive, it induces nanometre scale oscil ...

Copernicus GmbH2017

A Microfluidic Platform Enables Large-Scale Single-Cell Screening to Identify Genes Involved in Bacterial Persistence

Amanda Verpoorte

Persistent cells, representing a small fraction of a bacterial population, are refractory to antibiotic therapy. It is a phenotypic transient state. The underlying mechanisms of persistence remain largely unknown, but even divergent hypotheses agree on a f ...

EPFL2017

Rv3852 (H-NS) of Mycobacterium tuberculosis Is Not Involved in Nucleoid Compaction and Virulence Regulation

Stewart Cole, Claudia Sala, Andrej Benjak, Anthony Vocat, Gaëlle Séraphine Kolly, Andréanne Lupien, Nina Theres Odermatt

A handful of nucleoid-associated proteins (NAPs) regulate the vast majority of genes in a bacterial cell. H-NS, the histone-like nucleoid-structuring protein, is one of these NAPs and protects Escherichia coli from foreign gene expression. Though lacking a ...

American Society for Microbiology2017

Interbacterial predation as a strategy for DNA acquisition in naturally competent bacteria

Melanie Blokesch

Natural competence enables bacteria to take up exogenous DNA. The evolutionary function of natural competence remains controversial, as imported DNA can act as a source of substrates or can be integrated into the genome. Exogenous homologous DNA can also b ...

Nature Publishing Group2017

Devices for high-throughput aggregation and manipulation of mammalian cells

Matthias Lütolf, Nathalie Brandenberg, Sylke Höhnel

The invention concerns a device (1) for aggregating cells comprising at least one cavity (2), wherein said cavity comprises a plurality of microwells (3) for receiving at least one cell, wherein each said well comprises a vertical sidewall and a curved bot ...

2016

Regulation of competence-mediated horizontal gene transfer in the natural habitat of Vibrio cholerae

Melanie Blokesch, Lisa Christina Metzger

The human pathogen Vibrio cholerae is an autochthonous inhabitant of aquatic environments where it often interacts with zooplankton and their chitinous molts. Chitin induces natural competence for transformation in V. cholerae, a key mode of horizontal gen ...

Elsevier2016

Chromatin organization, transcription factor dynamics and gene expression in higher eukaryotes with superresolution imaging and single molecule tracking

Aleksandr Benke

Gene expression is dynamic and heterogeneous across all cell types. It serves several fundamental functions such as adaptation for changing environment and developing tissue specific phenotype and functionality during development and in adult organism. Con ...

EPFL2015

Transcriptomic characterization of the enzymatic antioxidants FeSOD, MnSOD, APX and KatG in the dinoflagellate genus Symbiodinium

Thomas Krüger

Background The diversity of the symbiotic dinoflagellate Symbiodinium sp., as assessed by genetic markers, is well established. To what extent this diversity is reflected on the amino acid level of functional genes such as enzymatic antioxidants that play ...

BioMed Central2015

Molecular Mechanism of Flocculation Self-Recognition in Yeast and Its Role in Mating and Survival

Sandor Kasas, Livan Bladimir Alonso Sarduy

We studied the flocculation mechanism at the molecular level by determining the atomic structures of N-Flo1p and N-Lg-Flo1p in complex with their ligands. We show that they have similar ligand binding mechanisms but distinct carbohydrate specificities and ...

American Society for Microbiology2015

Structural studies suggest a peptidoglycan hydrolase function for the Mycobacterium tuberculosis Tat-secreted protein Rv2525c

Stewart Cole, Raju Mukherjee, Sophie Magnet

Among the few proteins shown to be secreted by the Tat system in Mycobacterium tuberculosis, Rv2525c is of particular interest, since its gene is conserved in the minimal genome of Mycobacterium leprae. Previous evidence linked this protein to cell wall me ...

Elsevier2014