Results 41 to 50 of about 8,860 (214)

Application of katG::lux gene construct for cytotoxicity and genotoxicity monitoring of metoprolol in environment [PDF]

, 2017
Celem niniejszej pracy była ocena możliwości wykorzystania mikrobiologicznego biosensora Escherichia coli z konstruktem genowym katG::lux w badaniach monitorujących cytotoksyczność i genotoksyczność metoprololu w środowisku.
Hawrylik, E., Matejczyk, M.
core   +1 more source

Effect of Oxidative Stress on AhpC Activity and Virulence in katG Ser315 Thr Mycobacterium tuberculosis Mutant

Indonesian Journal of Biotechnology, 2011
Mycobacterium tuberculosis strains resistance to INH is mainly caused by the alteration in several genes encoding the molecular targets. Mutation of katG at codon 315 especially Ser315Thr are responsible for INH resistance in a large proportion of TB ...
Ning Rintiswati, Tri Wibawa, Widya Asmara, Hardyanto Soebono   +3 more
doaj   +1 more source

KatG, the Bifunctional Catalase of Xanthomonas citri subsp. citri, Responds to Hydrogen Peroxide and Contributes to Epiphytic Survival on Citrus Leaves. [PDF]

PLoS ONE, 2016
Xanthomonas citri subsp. citri (Xcc) is the bacterium responsible for citrus canker. This bacterium is exposed to reactive oxygen species (ROS) at different points during its life cycle, including those normally produced by aerobic respiration or upon ...
María Laura Tondo, María Laura Delprato, Ivana Kraiselburd, María Verónica Fernández Zenoff, María Eugenia Farías, Elena G Orellano   +5 more
doaj   +1 more source

Heteroresistance of Mycobacterium tuberculosis in the Sputum Detected by Droplet Digital PCR

Biology, 2023
Heteroresistance in MTB refers to the presence of distinct subpopulations of bacteria with varying levels of antibiotic susceptibility within a population. Multidrug-resistant and rifampicin-resistant TB are serious global health concerns. In this study,
Ye Win Aung, Kiatichai Faksri, Arunnee Sangka, Kanchana Tomanakan, Wises Namwat   +4 more
doaj   +1 more source

Unravelling the Chemolithoautotrophic Metabolism of the Carboxydotrophic Knallgas Bacterium Hydrogenophaga pseudoflava

Microbial Biotechnology, Volume 19, Issue 11, November 2026.
Proteomics of the aerobic carboxydotroph Hydrogenophaga pseudoflava across trophic conditions revealed that an unphysiological CO concentration causes a redox imbalance and stress response. CO dehydrogenase I and the membrane‐bound hydrogenase were essential for CO and H2 oxidation, respectively, whereas the soluble hydrogenase likely supports redox ...
Simon Grieshaber, Antonia Ebert, Pauline Kehr, Dominik L. Siebert, Ammar Al‐Shameri, Volker Sieber, Birgitta E. Ebert, Esteban Marcellin, Bastian Blombach   +8 more
wiley   +1 more source

Theophylline controls endogenous KatG expression and restores sensitivity to isoniazid.

, 2012
(A) A single recombination event between the Msmeg chromosome and a plasmid containing the promoter-riboswitch combination and 500 bp of KatG yields the RiboS-katG strain containing a single full-length copy of katG under riboswitch control. The positive
Shana Topp (187380), Jessica C. Seeliger (187377), Kimberly M. Sogi (187386), Mary L. Previti (187392), Carolyn R. Bertozzi (187405), Justin P. Gallivan (187399)   +5 more
core   +1 more source

Multiplex PCR for Rapid Detection of Rifampin and Isoniazid Resistance in Mycobacterium tuberculosis Isolated from Bandung, Indonesia

Microbiology Indonesia, 2010
Mycobacterium tuberculosis resistant to rifampin and isoniazid, known as multidrug-resistant M. tuberculosis (MDR-TB) strains, is an emerging problem of great importance to public health, with higher mortality rates than for drug-sensitive strains ...
HERA NOVIANA, ZEILY NURACHMAN, MAELITA RAMDANI, AS NOER   +3 more
doaj   +1 more source

Prognostic significance of novel katG mutations in Mycobacterium tuberculosis

International Journal of Mycobacteriology, 2015
Background: By using whole genome sequencing (WGS), researchers are beginning to understand the genetic diversity of Mycobacterium tuberculosis (MTB) and its consequences for the diagnosis of multidrug-resistant tuberculosis (MDR–TB) on a genomic scale.
F Valafar, S M Ramirez-Busby, J Torres, Lynthia V Paul, T C Rodwell, T C Victor, C Rodrigues, M T Gler, V Crudu, T Catanzaro   +9 more
openaire   +3 more sources

Overexpression, Purification, and Characterization of the Catalase-peroxidase KatG from Mycobacterium tuberculosis [PDF]

Journal of Biological Chemistry, 1997
Wild-type catalase-peroxidase KatG from Mycobacterium tuberculosis as well as a specific mutant (R463L) frequently found in isoniazid-resistant strains have been overexpressed in Escherichia coli, allowing purification of sufficient quantities of enzyme for physical and kinetic characterization.
Johnsson, Kai, Froland, Wayne A., Schultz, Peter G.   +2 more
openaire   +3 more sources

OsYchF1 suppresses OsEF1Bγ‐mediated ER detoxification to co‐involve the growth‐maintenance trade‐off in rice

The Plant Journal, Volume 128, Issue 3, November 2026.
SUMMARY Translation elongation is a fundamental biological process, yet its direct role in stress adaptation remains unclear. In this study, we uncover a novel regulatory axis in rice involving the unconventional G protein OsYchF1, which gates the detoxification activity of the elongation factor 1Bγ (OsEF1Bγ) in the endoplasmic reticulum.
Liyang Gao, Lulu Yu, Dongyu Chen, Rongfang Li, Yuhe Wang, Yunchuan Liao, Yetao Meng, Qian Li, Ying Miao, Gefei Hao, Rui Miao   +10 more
wiley   +1 more source