Florence Pojer

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Publications associées (48)

Virulence Regulator EspR of Mycobacterium tuberculosis Is a Nucleoid-Associated Protein

Benjamin Blasco, Stewart Cole, Claudia Sala, Florence Pojer, Jeffrey Chen, Swapna Uplekar, Jacques Rougemont, Ruben Hartkoorn

The principal virulence determinant of Mycobacterium tuberculosis (Mtb), the ESX-1 protein secretion system, is positively controlled at the transcriptional level by EspR. Depletion of EspR reportedly affects a small number of genes, both positively or neg ...

Public Library of Science2012

Characterization of Molecular Determinants of the Conformational Stability of Macrophage Migration Inhibitory Factor: Leucine 46 Hydrophobic Pocket

Ursula Röthlisberger, Bruno Claude Daniel Fauvet, Hilal Lashuel, Hajer Ouertatani-Sakouhi, Michele Cascella, Farah El Turk, Marilisa Neri, Florence Pojer, Amer Ashrafi, Min Kyu Cho, Magdalena Zweckstetter

Macrophage Migration Inhibitory Factor (MIF) is a key mediator of inflammatory responses and innate immunity and has been implicated in the pathogenesis of several inflammatory and autoimmune diseases. The oligomerization of MIF, more specifically trimer f ...

Public Library of Science2012

Directed evolution of the suicide protein O⁶-alkylguanine-DNA alkyltransferase for increased reactivity results in an alkylated protein with exceptional stability

Kai Johnsson, Ursula Röthlisberger, Simone Schmitt, Florence Pojer, Birgit Mollwitz, Elizabeth Claire Brunk

Here we present a biophysical, structural, and computational analysis of the directed evolution of the human DNA repair protein O-6-alkylguanine-DNA alkyltransferase (hAGT) into SNAP-tag, a self-labeling protein tag. Evolution of hAGT led not only to incre ...

2012

Structural Basis for Benzothiazinone-Mediated Killing of Mycobacterium tuberculosis

Paul Joseph Dyson, John McKinney, Stewart Cole, Neeraj Dhar, Florence Pojer, Elizabeth Fullam, Joao Pedro De Almeida Neres

The benzothiazinone BTZ043 is a tuberculosis drug candidate with nanomolar whole-cell activity. BTZ043 targets the DprE1 catalytic component of the essential enzyme decaprenylphosphoryl-beta-D-ribofuranose-2'-epimerase, thus blocking biosynthesis of arabin ...

American Association for the Advancement of Science2012

Towards a new tuberculosis drug: pyridomycin - nature's isoniazid

Stewart Cole, Claudia Sala, Florence Pojer, Sophie Magnet, Swapna Uplekar, Ruben Hartkoorn, Joao Pedro De Almeida Neres, Raju Mukherjee

Tuberculosis, a global threat to public health, is becoming untreatable due to widespread drug resistance to frontline drugs such as the InhA-inhibitor isoniazid. Historically, by inhibiting highly vulnerable targets, natural products have been an importan ...

Wiley Open Access2012

EspD Is Critical for the Virulence-Mediating ESX-1 Secretion System in Mycobacterium tuberculosis

Stewart Cole, Neeraj Dhar, Florence Pojer, Jeffrey Chen, Stefanie Boy-Röttger

ESAT-6 system 1 (ESX-1)-mediated secretion in Mycobacterium tuberculosis is dependent on proteins encoded by the cotranscribed espA-espC-espD gene cluster. While the roles of EspA and EspC with respect to the ESX-1 secretion system have been actively inves ...

American Society for Microbiology2011

Towards anti-virulence drugs targeting ESX-1 mediated pathogenesis of Mycobacterium tuberculosis

Benjamin Blasco, Stewart Cole, Florence Pojer, Jeffrey Chen

Mycobacterium tuberculosis (M. tb) the causative agent of tuberculosis (TB) causes 1.7 million deaths annually. According to the World Health Organization, in some areas of the world, 25% of TB cases are due to multi- or extensively drug resistant M. tb st ...

Elsevier2010

Sigma Factor F does not Prevent Rifampin Inhibition of RNA Polymerase or Cause Rifampin Tolerance in Mycobacterium tuberculosis

Stewart Cole, Claudia Sala, Florence Pojer, Sophie Magnet, Jeffrey Chen, Ruben Hartkoorn

The tolerance of Mycobacterium tuberculosis to anti-tuberculosis drugs is a major reason for the lengthy therapy needed to treat a tuberculosis infection. Rifampin is a potent inhibitor of RNA polymerase (RNAP) in vivo, but has been shown to be less effect ...

American Society for Microbiology2010

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