Trypanosoma brucei adenine-phosphoribosyltransferases mediate adenine salvage and aminopurinol susceptibility but not adenine toxicity [PDF]
African trypanosomes, like all obligate parasitic protozoa, cannot synthesize purines de novo and import purines from their hosts to build nucleic acids. The purine salvage pathways of Trypanosoma brucei being redundant, none of the involved enzymes is likely to be essential.
Lüscher, Alexandra +4 more
openaire +4 more sources
Adenine Nucleotide and Nicotinamide Adenine Dinucleotide Measurements in Plants [PDF]
AbstractAs the principal co‐factors of many metabolic pathways, the measurement of both adenine nucleotides and nicotinamide adenine dinucleotide provides important information about cellular energy metabolism. However, given their rapid and reversible conversion as well as their relatively low concentration ranges, it is difficult to measure these ...
Zhang, Youjun +4 more
openaire +4 more sources
Uraemic Cardiomyopathy in Different Mouse Models
Uraemic cardiomyopathy (UCM) is one of the most common complications in chronic kidney disease (CKD). Our aim was to compare characteristics of various UCM mouse models. Mice were assigned to the following groups: the pole ligation group, 5/6 nephrectomy
Cheng Chen +7 more
doaj +1 more source
Electron transfer driven decomposition of adenine and selected analogs as probed by experimental and theoretical methods [PDF]
We report on a combined experimental and theoretical study of electron transfer induced decomposition of adenine and a selection of analogue molecules in collisions with potassium atoms (K).
Bacchus-Montabonel, M.-C. +6 more
core +4 more sources
Ribose supplementation alone or with elevated creatine does not preserve high energy nucleotides or cardiac function in the failing mouse heart [PDF]
Background: Reduced levels of creatine and total adenine nucleotides (sum of ATP, ADP and AMP) are hallmarks of chronic heart failure and restoring these pools is predicted to be beneficial by maintaining the diseased heart in a more favourable energy ...
Aksentijevic, Dunja +6 more
core +9 more sources
Adenine deaminase and adenine utilization in Saccharomyces cerevisiae [PDF]
Compared with other purine salvage and nitrogen catabolism enzymatic activities, adenine deaminase (adenine aminohydrolase [AAH]; EC 3.5.4.2) activity in Saccharomyces cerevisiae is uniquely regulated. AAH specific activity is not induced by adenine and is reduced sevenfold when cells are cultivated in medium containing proline in place of ammonium as ...
openaire +2 more sources
Structure and stereochemistry of the base excision repair glycosylase MutY reveal a mechanism similar to retaining glycosidases. [PDF]
MutY adenine glycosylases prevent DNA mutations by excising adenine from promutagenic 8-oxo-7,8-dihydroguanine (OG):A mismatches. Here, we describe structural features of the MutY active site bound to an azaribose transition state analog which indicate a
Cao, Sheng +6 more
core +2 more sources
Adsorption of Nucleic Acid Bases, Ribose, and Phosphate by Some Clay Minerals
Besides having a large capacity for taking up organic molecules, clay minerals can catalyze a variety of organic reactions. Derived from rock weathering, clay minerals would have been abundant in the early Earth. As such, they might be expected to play a
Hideo Hashizume
doaj +1 more source
DGR mutagenic transposition occurs via hypermutagenic reverse transcription primed by nicked template RNA. [PDF]
Diversity-generating retroelements (DGRs) are molecular evolution machines that facilitate microbial adaptation to environmental changes. Hypervariation occurs via a mutagenic retrotransposition process from a template repeat (TR) to a variable repeat ...
Guo, Huatao +6 more
core +3 more sources
Adenine and Thymine Effect on Quartz Dissolution at Different Artificial Seawaters
According to Bernal (1951) minerals may have played important roles in the origin of life such as: protect biomolecules against degradation by UV radiation or hydrolysis, pre-concentrate biomolecules from prebiotic seas and formation of polymers.
Dimas Augusto Morozin Zaia +2 more
doaj +1 more source

