Results 21 to 30 of about 276,635 (308)

Metal-ion binding and metal-ion induced folding of the adenine-sensing riboswitch aptamer domain [PDF]

open access: yes, 2010
Divalent cations are important in the folding and stabilization of complex RNA structures. The adenine-sensing riboswitch controls the expression of mRNAs for proteins involved in purine metabolism by directly sensing intracellular adenine levels ...
Wöhnert, Jens   +2 more
core   +1 more source

Uraemic Cardiomyopathy in Different Mouse Models

open access: yesFrontiers in Medicine, 2021
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

Comparative analysis of inflammatory and oxidative stress indicators in rat models of CKD induced by adenine versus folic acid; an experimental study [PDF]

open access: yesJournal of Nephropathology
Introduction: Chronic kidney disease (CKD) is a progressive condition characterized by inflammation, oxidative stress, and significant renal dysfunction. Animal models are indispensable for studying CKD pathophysiology and testing therapeutic strategies.
Asaad Abass Fadhel Khalif   +3 more
doaj   +1 more source

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

Single-molecule chemical denaturation of riboswitches [PDF]

open access: yes, 2013
To date, single-molecule RNA science has been developed almost exclusively around the effect of metal ions as folding promoters and stabilizers of the RNA structure.
St-Pierre, Patrick   +16 more
core   +1 more source

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

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

Silver-Based SERS Pico-Molar Adenine Sensor

open access: yesBiosensors, 2020
Adenine is an important molecule for biomedical and agricultural research and applications. The detection of low concentration adenine molecules is thus desirable.
Yonhua Tzeng, Bo-Yi Lin
doaj   +1 more source

Detection of Guanine and Adenine Using an Aminated Reduced Graphene Oxide Functional Membrane-Modified Glassy Carbon Electrode

open access: yesSensors, 2017
A new electrochemical sensor based on a Nafion, aminated reduced graphene oxide and chitosan functional membrane-modified glassy carbon electrode was proposed for the simultaneous detection of adenine and guanine. Fourier transform-infrared spectrometry (
Di Li   +6 more
doaj   +1 more source

A porous material of cross-linked adenine-polyethylene glycol diglycidyl ether for copper ion adsorption

open access: yesMaterials Research Express, 2021
A porous material (PEA) was prepared by the ring opening polymerization of polyethylene glycol diglycidyl ether with adenine in a simple sol-gel method. The structure and composition of PEA were characterized by SEM, FT-IR, BET and XRD.
Longfei Zhang   +7 more
doaj   +1 more source

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