Results 21 to 30 of about 487,247 (373)

Ribose supplementation alone or with elevated creatine does not preserve high energy nucleotides or cardiac function in the failing mouse heart [PDF]

open access: yes, 2013
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   +7 more sources

Adsorption of Nucleic Acid Bases, Ribose, and Phosphate by Some Clay Minerals

open access: yesLife, 2015
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

Purine Synthesis Inhibitor L-Alanosine Impairs Mitochondrial Function and Stemness of Brain Tumor Initiating Cells

open access: yesBiomedicines, 2022
Glioblastoma (GBM) is a lethal brain cancer exhibiting high levels of drug resistance, a feature partially imparted by tumor cell stemness. Recent work shows that homozygous MTAP deletion, a genetic alteration occurring in about half of all GBMs ...
Simranjit X. Singh   +8 more
doaj   +1 more source

Adenine and Thymine Effect on Quartz Dissolution at Different Artificial Seawaters

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
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

Structure and stereochemistry of the base excision repair glycosylase MutY reveal a mechanism similar to retaining glycosidases. [PDF]

open access: yes, 2015
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

Adenine deaminase and adenine utilization in Saccharomyces cerevisiae [PDF]

open access: yesJournal of Bacteriology, 1992
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

DGR mutagenic transposition occurs via hypermutagenic reverse transcription primed by nicked template RNA. [PDF]

open access: yes, 2017
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

Skeletal myopathy in CKD: a comparison of adenine-induced nephropathy and 5/6 nephrectomy models in mice.

open access: yesAJP - Renal Physiology, 2021
Preclinical models of chronic kidney disease (CKD) are critical to investigate the mechanisms of disease and to evaluate novel therapeutics aimed to treat CKD-associated pathologies.
Kyoungrae Kim   +8 more
semanticscholar   +1 more source

Electron transfer driven decomposition of adenine and selected analogs as probed by experimental and theoretical methods [PDF]

open access: yes, 2018
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

A dual-deaminase CRISPR base editor enables concurrent adenine and cytosine editing

open access: yesNature Biotechnology, 2020
Existing adenine and cytosine base editors induce only a single type of modification, limiting the range of DNA alterations that can be created. Here we describe a CRISPR–Cas9-based synchronous programmable adenine and cytosine editor (SPACE) that can ...
Julian Grünewald   +10 more
semanticscholar   +1 more source

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