Results 41 to 50 of about 393,841 (281)

Interplay of 'induced fit' and preorganization in the ligand induced folding of the aptamer domain of the guanine binding riboswitch [PDF]

, 2006
Riboswitches are highly structured elements in the 50-untranslated regions (50-UTRs) of messenger RNA that control gene expression by specifically binding to small metabolite molecules. They consist of an aptamer domain responsible for ligand binding and
Noeske, Jonas, Buck, Janina, Fürtig, Boris, Nasiri, Hamid Reza, Schwalbe, Harald (Prof. Dr.), Wöhnert, Jens   +5 more
core   +1 more source

Mutual Relations between Substituent Effect, Hydrogen Bonding, and Aromaticity in Adenine-Uracil and Adenine-Adenine Base Pairs

Molecules, 2020
The electronic structure of substituted molecules is governed, to a significant extent, by the substituent effect (SE). In this paper, SEs in selected nucleic acid base pairs (Watson-Crick, Hoogsteen, adenine-adenine) are analyzed, with special emphasis ...
Paweł A. Wieczorkiewicz, Halina Szatylowicz, Tadeusz M. Krygowski   +2 more
doaj   +1 more source

Mechanism study on the effect of adenine on the viability of Lactiplantibacillus plantarum LIP-1 powder via freeze-drying

Food Science of Animal Products, 2023
Adenine acts as a growth promoter to promote the growth of the lactic acid bacteria (LAB), but the effect on the viability of freeze-dried strains has rarely been studied.
Qiaoling Zhang, Rongze Ma, Jinqi Cao, Ruoru Zhuang, Shuyi Jiao, Xingkun Guo, Jingjing E, Junguo Wang   +7 more
doaj   +1 more source

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

, 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 ...
Noeske, Jonas, Schwalbe, Harald (Prof. Dr.), Wöhnert, Jens   +2 more
core  

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Surface-Enhanced Raman Spectroscopy (SERS) for Identifying Traces of Adenine in Organic-Bearing Extraterrestrial Dust Analogs Captured in the Tanpopo Aerogel after Hypervelocity Impacts

Gels
Raman spectroscopy is a non-destructive analytical technique for characterizing organic and inorganic materials with spatial resolution in the micrometer range. This makes it a method of choice for space-mission sample characterization, whether on return
Aline Percot, Farah Mahieddine, Hajime Yano, Sunao Hasegawa, Makoto Tabata, Akihiko Yamagishi, Hajime Mita, Alejandro Paredes-Arriaga, Marie-Christine Maurel, Jean-François Lambert, Donia Baklouti, Emilie-Laure Zins   +11 more
doaj   +1 more source

Purine and pyrimidine bases as growth substances for lactic acid bacteria [PDF]

, 1941
In 1936 Richardson (1) showed that uracil was essential for the anaerobic growth of Staphylococcus aureus, but not for aerobic growth of the same organism.
Mitchell, Herschel K., Snell, Esmond E.
core  

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

The effect of adenine adsorption on Zn (II) electroreduction in acetate buffer.

Acta Chimica Slovenica, 2018
The paper presents the thermodynamic analysis of adenine adsorption on a mercury electrode in an acetate buffer at pH 3 and pH 4. Adsorption energy and constants were determined using the Frumkin isotherm and the virial isotherm.
Dorota Gugała-Fekner
doaj   +1 more source

The Role of Organic Peroxides in the Induction of Mutations [PDF]

, 1949
The discovery by Wyss, Stone, and Clark' that bacteria grown on a substrate recently exposed to ultra-violet light are subject to high mutation rates shows clearly that some meta-stable chemical substance, probably of no great complexity, is an ...
Cleland, George H., Dickey, Frank H., Lotz, Carol   +2 more
core   +1 more source