Publications associées à FtsZ

Sequestered Chloroplasts In The Benthic Foraminifer Haynesina Germanica: Cellular Organization, Oxygen Fluxes And Potential Ecological Implications

Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

Haynesina germanica is a coastal benthic foraminifer known to sequester chloroplasts from benthic pennate diatoms. This study investigates its cellular organization, as well as the oxygen consumption and production rates under dark and light conditions. Th ...

2017

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

Division site selection linked to inherited cell surface wave troughs in mycobacteria

Georg Fantner, John McKinney, Neeraj Dhar, Adrian Pascal Nievergelt, Pascal Damian Odermatt, Haig Alexander Eskandarian, Mélanie Thérèse Marie Hannebelle, Joëlle Xiao Yuan Ven

Cell division is tightly controlled in space and time to maintain cell size and ploidy within narrow bounds. In bacteria, the canonical Minicell (Min) and nucleoid occlusion (Noc) systems together ensure that division is restricted to midcell after complet ...

2017

An Amidase_3 domain-containing N-acetylmuramyl-L-alanine amidase is required for mycobacterial cell division

Neeraj Dhar, Ashima Bhaskar, Dong Li

Mycobacteria possess a multi-layered cell wall that requires extensive remodelling during cell division. We investigated the role of an amidase_3 domain-containing N-acetylmuramyl-L-alanine amidase, a peptidoglycan remodelling enzyme implicated in cell div ...

Nature Research2017

A benzamide-dependent ftsZ mutant reveals residues crucial for Z-ring assembly

David William Adams

In almost all bacteria, cell division is co-ordinated by the essential tubulin homologue FtsZ and represents an attractive but as yet unexploited target for new antibiotics. The benzamides, e.g. PC190723, are potent FtsZ inhibitors that have the potential ...

Wiley-Blackwell2016

SAS-6 engineering reveals interdependence between cartwheel and microtubules in determining centriole architecture

Pierre Gönczy, Virginie Hamel, Paul Guichard

Centrioles are critical for the formation of centrosomes, cilia and flagella in eukaryotes. They are thought to assemble around a nine-fold symmetric cartwheel structure established by SAS-6 proteins. Here, we have engineered Chlamydomonas reinhardtii SAS- ...

Nature Publishing Group2016

Centriolar CPAP/SAS-4 Imparts Slow Processive Microtubule Growth

Pierre Gönczy, Mary-Claude Croisier-Coeytaux, Nicola Jane Dynes, Ashwani Sharma

Centrioles are fundamental and evolutionarily conserved microtubule-based organelles whose assembly is characterized by microtubule growth rates that are orders of magnitude slower than those of cytoplasmic microtubules. Several centriolar proteins can int ...

Cell Press - Elsevier2016

Pombe's thirteen - control of fission yeast cell division by the septation initiation network

Viesturs Simanis

The septation initiation network (SIN) regulates aspects of cell growth and division in Schizosaccharomyces pombe and is essential for cytokinesis. Insufficient signalling results in improper assembly of the contractile ring and failure of cytokinesis, gen ...

Company Of Biologists Ltd2015

Correction of a Depth-Dependent Lateral Distortion in 3D Super-Resolution Imaging

Suliana Manley, Kyle Michael Douglass, Seamus John Holden, Lina Carlini

Three-dimensional (3D) localization-based super-resolution microscopy (SR) requires correction of aberrations to accurately represent 3D structure. Here we show how a depth-dependent lateral shift in the apparent position of a fluorescent point source, whi ...

Public Library of Science2015

High throughput 3D super-resolution microscopy reveals Caulobacter crescentus in vivo Z-ring organization

Suliana Manley, Karin Lederballe Meibom, Seamus John Holden, Thomas Pengo

We created a high-throughput modality of photoactivated localization microscopy (PALM) that enables automated 3D PALM imaging of hundreds of synchronized bacteria during all stages of the cell cycle. We used high-throughput PALM to investigate the nanoscal ...

National Academy of Sciences2014

Listeria phage A511, a model for the contractile tail machineries of SPO1-related bacteriophages

Petr Leiman

Recognition of the bacterial host and attachment to its surface are two critical steps in phage infection. Here we report the identification of Gp108 as the host receptor-binding protein of the broad host-range, virulent Listeria phage A511. The ligands fo ...

Wiley-Blackwell2014

Direct path integral estimators for isotope fractionation ratios

Michele Ceriotti, Bingqing Cheng

Fractionation of isotopes among distinct molecules or phases is a quantum effect which is often exploited to obtain insights on reaction mechanisms, biochemical, geochemical, and atmospheric phenomena. Accurate evaluation of isotope ratios in atomistic sim ...

American Institute of Physics2014

Programmable microfluidic patterning of protein gradients on hydrogels

Matthias Lütolf, Steffen Cosson, Simone Allazetta

Computer-controlled hydrodynamic flow focusing was utilized to generate tethered protein gradients of any user-defined shape on the surface of soft synthetic hydrogels. ...

Royal Society of Chemistry2010

Chemical genetic analysis of the regulatory role of Cdc2p in the S. pombe septation initiation network

Viesturs Simanis, Andrea Krapp

The protein kinase Cdc2p is the master regulator of cell cycle progression in the fission yeast Schizosaccharomyces pombe. It is required both for entry into mitosis and for onset of DNA replication. Cdc2p must be inactivated to permit exit from mitosis, l ...

2008

The Schizosaccharomyces pombe septation initiation network (SIN) is required for spore formation in meiosis

Viesturs Simanis, Andrea Krapp, Elena Cano

When nutrients are abundant, S. pombe cells grow as rods, dividing by fission after formation of a medially placed cell wall or division septum. Septum formation is triggered by a group of proteins, called the septation initiation network or SIN, that trig ...

2006

Events at the end of mitosis in the budding and fission yeasts

Viesturs Simanis

The mitotic exit network (MEN) and the septation initiation network (SIN) control events at the end of mitosis in S. cerevisiae and S. pombe, respectively. SIN initiates contraction of the actin ring and synthesis of the division septum, thereby bringing a ...

2003

Flp1, a fission yeast orthologue of the s. cerevisiae CDC14 gene, is not required for cyclin degradation or rum1p stabilisation at the end of mitosis

Viesturs Simanis

In Saccharomyces cerevisiae, the phosphoprotein phosphatase Cdc14p plays a central role in exit from mitosis, by promoting B-type cyclin degradation and allowing accumulation of the cyclin-dependent kinase inhibitor Sic1p. Cdc14p is sequestered in the nucl ...

2001