Results 31 to 40 of about 38,518 (252)

Modeling of Self-Assembled Peptide Nanotubes and Determination of Their Chirality Sign Based on Dipole Moment Calculations

open access: yesNanomaterials, 2021
The chirality quantification is of great importance in structural biology, where the differences in proteins twisting can provide essentially different physiological effects.
Vladimir Bystrov   +8 more
doaj   +1 more source

Muscle carnosine metabolism and β-alanine supplementation in relation to exercise and training [PDF]

open access: yes, 2010
Carnosine is a dipeptide with a high concentration in mammalian skeletal muscle. It is synthesized by carnosine synthase from the amino acids L-histidine and beta-alanine, of which the latter is the rate-limiting precursor, and degraded by carnosinase ...
Baguet, Audrey   +3 more
core   +2 more sources

L-Glutamine peptides as a means of accelerated rehydration under intense physical activity in athletes

open access: yesСпортивная медицина: наука и практика, 2020
This review is devoted to the theory and practice of the use of glutamine dipeptides in sports. The pathway of L-Glutamine dipeptides is described from the moment of oral intake and entering the intestine to inclusion in intracellular metabolic processes
T. Pushkina   +6 more
doaj   +1 more source

Self-Assembly of the Dipeptide L-Alanyl-L-Phenylalanine under the Action of Methanol Vapor with the Formation of Micro- and Nanostructures

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2023
The mechanism of self-assembly by short-chain peptides (oligopeptides) – the process by which their molecules spontaneously form an ordered structure – has received much attention recently.
A. S. Morozova   +4 more
doaj   +1 more source

RGS4 is arginylated and degraded by the N-end rule pathway in vitro [PDF]

open access: yes, 2000
The N-end rule relates the in vivo half-life of a protein to the identity of its N-terminal residue. We used an expression-cloning screen to search for mouse proteins that are degraded by the ubiquitin/proteasome-dependent N-end rule pathway in a ...
Davydov, Ilia V., Varshavsky, Alexander
core   +1 more source

Analysis of dipeptides in Chinese liquors based on dansylation combined with liquid chromatography–mass spectrometry

open access: yesFood Chemistry: X, 2023
Dipeptides have been shown to be an important taste substance in alcoholic beverages. However, the characterization of dipeptides in Chinese liquors was poor.
Yubo Yang   +10 more
doaj   +1 more source

First-principles molecular structure search with a genetic algorithm

open access: yes, 2015
The identification of low-energy conformers for a given molecule is a fundamental problem in computational chemistry and cheminformatics. We assess here a conformer search that employs a genetic algorithm for sampling the low-energy segment of the ...
Baldauf, Carsten   +2 more
core   +2 more sources

Recent advances in experimental techniques to probe fast excited-state dynamics in biological molecules in the gas phase : dynamics in nucleotides, amino acids and beyond [PDF]

open access: yes, 2013
In many chemical reactions, an activation barrier must be overcome before a chemical transformation can occur. As such, understanding the behaviour of molecules in energetically excited states is critical to understanding the chemical changes that these ...
Hadden DJ   +6 more
core   +1 more source

Sum frequency generation spectroscopy of the attachment disc of a spider [PDF]

open access: yes, 2021
The pyriform silk of the attachment disc of a spider was studied using infrared-visible vibrational sum frequency generation (SFG) spectroscopy. The spider can attach dragline and radial lines to many kinds of substrates in nature (concrete, alloy, metal,
Hien, Khuat Thi Thu   +5 more
core   +2 more sources

Bivalent Inhibitor of the N-end Rule Pathway [PDF]

open access: yes, 1999
The N-end rule relates the in vivo half-life of a protein to the identity of its N-terminal residue. Ubr1p, the recognition (E3) component of the Saccharomyces cerevisiae N-end rule pathway, contains at least two substrate-binding sites.
Kwon, Yong Tae   +2 more
core   +1 more source

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