Results 91 to 100 of about 5,837 (209)

Structural insights into urocanate reductase using room‐temperature X‐ray crystallography

open access: yesActa Crystallographica Section D, Volume 82, Issue 6, Page 603-614, June 2026.
The active‐site dynamics of the microbial enzyme urocanate reductase were revealed by room‐temperature X‐ray crystallography.Urocanate reductase (UrdA) is a bacterial enzyme that converts urocanic acid to imidazole propionate. Its catalytic residue Arg411 undergoes a large conformational change in the substrate‐bound versus product‐bound states.
Swati Aggarwal   +4 more
wiley   +1 more source

Targeted Myocardial Hypoxia Imaging Using a Nitroreductase-Activatable Near-Infrared Fluorescent Nanoprobe

open access: yes, 2019
Development of a highly selective and sensitive imaging probe for accurate detection of myocardial hypoxia will be helpful to estimate the degree of ischemia and subsequently guide personalized treatment.
Mi Lu   +17 more
core   +1 more source

Mutagenic activation of CL64,855, an anti-Trypanosoma cruzi nitroderivant, by bacterial nitroreductases

open access: yesGenetics and Molecular Biology, 1998
CL64,855 is a nitroimidazole-thiodiazole derivate with high anti-Trypanosoma cruzi activity. CL64,855-induced mutagenesis in the Salmonella/microsome test was detected by TA98 and TA98dnp6 strains, but not by the nitroreductase I-deficient TA98nr strain.
Morais Jr. Marcos Antonio de   +2 more
doaj  

A Host–Guest Platform for Highly Efficient, Quantitative, and Rapid Detection of Nitroreductase

open access: yesChemosensors
Nitroreductase (NTR) is an enzyme expressed at an abnormally high level in solid tumors, which is associated with the hypoxia level in tumors. The establishment of a high-performance and convenient fluorescent platform for the fast monitoring of NTR is ...
Wen Si   +7 more
doaj   +1 more source

Activation of 1-nitropyrene by nitroreductase increases the DNA adduct level and mutagenicity [PDF]

open access: yes, 1998
1-Nitropyrene (1-NP) is a mutagenic nitro compound in the environment. We studied correlations between the mutagenicity of 1-NP for three strains of Salmonella typhimurium, the activity of bacterial nitroreductases and the amount of 1-NP-derived DNA ...
Ohnishi, Yoshinari   +21 more
core  

Asymmetric and Reduced Xanthene Fluorophores: Synthesis, Photochemical Properties, and Application to Activatable Fluorescent Probes for Detection of Nitroreductase

open access: yesMolecules, 2019
Xanthene fluorophores, including fluorescein, rhodol, and rhodamines, are representative classes of fluorescent probes that have been applied in the detection and visualization of biomolecules.
Kunal N. More   +5 more
doaj   +1 more source

NITROREDUCTASE NfnB FROM Mycobacterium smegmatis

open access: yes, 2008
The present invention relates to a screening method for the identification of new nitrobenzothiazinone drugs for the treatment of tuberculosis, which are not or are slowly transformed and inactivated by nitroreductase.
PASCA, MARIA ROSALIA   +2 more
core  

Structure and function of CinD (YtjD) of Lactococcus lactis, a copper-induced nitroreductase involved in defense against oxidative stress

open access: yes, 2010
In Lactococcus lactis IL1403, 14 genes are under the control of the copper-inducible CopR repressor. This so-called CopR regulon encompasses the CopR regulator, two putative CPx-type copper ATPases, a copper chaperone, and 10 additional genes of unknown ...
Oberholzer, Anselm E   +11 more
core   +1 more source

Oncolytic adenovirus vectors for nitroreductase suicide gene therapy of prostate cancer [PDF]

open access: yes, 2010
Prostate cancer is the most common male cancer in the UK and USA, with a 1/13 chance of diagnosis and a 1/30 lifetime risk of death from the disease. Current treatment options include radiotherapy, surgery and hormone therapy, however 1/3 patients escape
Herod, Morgan Reece
core  

Nitroreductase reactions of Arabidopsis thaliana thioredoxin reductase

open access: yesBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1998
Arabidopsis thaliana NADPH:thioredoxin reductase (TR, EC 1.6.4.5) catalyzed redox cycling of aromatic nitrocompounds, including the explosives 2,4,6-trinitrotoluene and tetryl, and the herbicide 3,5-dinitro-o-cresol. The yield of nitro anion radicals was equal to 70-90%.
Miškinien≐, Vanda   +3 more
openaire   +2 more sources

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