Regulation of bacterial drug export systems

S Grkovic, MH Brown, RA Skurray - Microbiology and Molecular …, 2002 - Am Soc Microbiol
The active transport of toxic compounds by membrane-bound efflux proteins is becoming an
increasingly frequent mechanism by which cells exhibit resistance to therapeutic drugs. This …

Negative autoregulation speeds the response times of transcription networks

N Rosenfeld, MB Elowitz, U Alon - Journal of molecular biology, 2002 - Elsevier
Cells regulate gene expression using networks of transcription interactions; it is of interest to
discover the principles that govern the dynamical behavior of such networks. An important …

Gene regulation by tetracyclines

C Berens, W Hillen - Genetic engineering: principles and methods, 2004 - Springer
Gene regulation by tetracyclines has become a widely-used tool to study gene functions in
pro-and eukaryotes. This regulatory system originates from Gram-negative bacteria, in which …

Two mutations in the tetracycline repressor change the inducer anhydrotetracycline to a corepressor

A Kamionka, J Bogdanska‐Urbaniak… - Nucleic acids …, 2004 - academic.oup.com
We report for the first time the in vitro characterization of a reverse tetracycline repressor
(revTetR). The dimeric wild‐type repressor (TetR) binds to tet operator tetO in the absence of …

Activity reversal of Tet repressor caused by single amino acid exchanges

O Scholz, EM Henßler, J Bail, P Schubert… - Molecular …, 2004 - Wiley Online Library
We explore by extensive mutagenesis regions in the sequence allowing reversal of the
allosteric response of Tet repressor. The wild type requires anhydrotetracycline for induction …

Broad‐spectrum protein biosensors for class‐specific detection of antibiotics

CC Weber, N Link, C Fux, AH Zisch… - Biotechnology and …, 2005 - Wiley Online Library
The dramatically increasing prevalence of multi‐drug‐resistant human pathogenic bacteria
and related mortality requires two key actions:(i) decisive initiatives for the detection of novel …

Teaching TetR to recognize a new inducer

O Scholz, M Köstner, M Reich, S Gastiger… - Journal of molecular …, 2003 - Elsevier
Tet Repressor (TetR) recognizes the inducer tetracycline (tc) with high affinity. The tc analog
4-de (dimethylamino)-6-deoxy-6-demethyl-tetracycline (cmt3) is not an inducer for TetR …

A parameterized two-domain thermodynamic model explains diverse mutational effects on protein allostery

Z Liu, TG Gillis, S Raman, Q Cui - Elife, 2024 - elifesciences.org
New experimental findings continue to challenge our understanding of protein allostery.
Recent deep mutational scanning study showed that allosteric hotspots in the tetracycline …

Transcription Factor Based Small‐Molecule Sensing with a Rapid Cell Phone Enabled Fluorescent Bead Assay

M Chern, PM Garden, RC Baer… - Angewandte Chemie …, 2020 - Wiley Online Library
Recently, allosteric transcription factors (TFs) were identified as a novel class of
biorecognition elements for in vitro sensing, whereby an indicator of the differential binding …

A Förster Resonance Energy Transfer‐Based Ratiometric Sensor with the Allosteric Transcription Factor TetR

TT Nguyen, M Chern, RC Baer, J Galagan, AM Dennis - Small, 2020 - Wiley Online Library
A recent description of an antibody‐free assay is significantly extended for small molecule
analytes using allosteric transcription factors (aTFs) and Förster resonance energy transfer …