Results 31 to 40 of about 45,192 (224)
A novel antifolate suppresses growth of FPGS-deficient cells and overcomes methotrexate resistance
Mechanistic characterization of a novel, lipophilic antifolate that suppresses growth of FPGS-deficient cells that are linked to methotrexate resistance and relapse in cancer patients.
Felix van der Krift +18 more
doaj +1 more source
A reservoir of 'historical' antibiotic resistance genes in remote pristine Antarctic soils [PDF]
Background: Soil bacteria naturally produce antibiotics as a competitive mechanism, with a concomitant evolution, and exchange by horizontal gene transfer, of a range of antibiotic resistance mechanisms.
Bezuidt, Oliver KI +5 more
core +2 more sources
We have used SOM and grid 3D and 4D QSAR schemes for modeling the activity of a series of dihydrofolate reductase inhibitors. Careful analysis of the performance and external predictivities proves that this method can provide an efficient inhibition ...
Tomasz Magdziarz +3 more
doaj +1 more source
Toward eradication of B-vitamin deficiencies : considerations for crop biofortification [PDF]
'Hidden hunger' involves insufficient intake of micronutrients and is estimated to affect over two billion people on a global scale. Malnutrition of vitamins and minerals is known to cause an alarming number of casualties, even in the developed world ...
Strobbe, Simon +1 more
core +3 more sources
Pteridine reductase 1 (PTR1) is a trypanosomatid multifunctional enzyme that provides a mechanism for escape of dihydrofolate reductase (DHFR) inhibition. This is because PTR1 can reduce pterins and folates.
Magambo Phillip Kimuda +3 more
doaj +1 more source
Processes underlying the nutritional programming of embryonic development by iron deficiency in the rat [PDF]
Peer reviewedPublisher ...
Gambling, Lorraine +5 more
core +3 more sources
Background Sulfonamide derivatives are of great attention due to their wide spectrum of biological activities. Sulfonamides conjugated with acetamide fragments exhibit antimicrobial and anticancer activities. The inhibition dihydrofolate reductase (DHFR)
Essam M. Hussein +3 more
doaj +1 more source
Affinity chromatography of dihydrofolate reductase [PDF]
1. Dihydrofolate reductase was purified from Lactobacillus casei MTX/R, and studied on affinity columns containing folic acid and methotrexate. Two forms of the enzyme were interconverted by incubation with substrates. 2. Affinity columns were prepared from agarose activated with cyanogen bromide and coupled with 1,6-diaminohexane.
P C, Newbold, N G, Harding
openaire +2 more sources
A Two-Enzyme Adaptive Unit within Bacterial Folate Metabolism
Summary: Enzyme function and evolution are influenced by the larger context of a metabolic pathway. Deleterious mutations or perturbations in one enzyme can often be compensated by mutations to others.
Andrew F. Schober +8 more
doaj +1 more source
Cinnamomum zeylanicum is a tropical plant with traditional medicinal significance that possesses antimicrobial, antifungal, anti-parasitic, and anti-tumor properties.
Sadhna Aggarwal +8 more
doaj +1 more source

