Results 131 to 140 of about 211,555 (356)

Interaction and imbalance between indispensable amino acids in young piglets

open access: yesAnimal, 2019
Lowering protein level in diets for piglets urge to have knowledge on the piglet’s requirements for essential amino acids (AA) and their interactions. The present studies aimed to determine the interaction between the dietary level of valine (Val) and ...
A.J.M. Jansman   +5 more
doaj  

Three phases in the evolution of the standard genetic code: how translation could get started [PDF]

open access: yes, 2007
A primordial genetic code is proposed, having only four codons assigned, GGC meaning glycine, GAC meaning aspartate/glutamate, GCC meaning alanine-like and GUC meaning valine-like.
van der Gulik, Peter
core   +1 more source

Advanced strategic constructions of diketopyrrolopyrrole derivatives‐based organic semiconducting phototheranostics

open access: yesInterdisciplinary Medicine, Volume 1, Issue 1, January 2023., 2023
This review specially focuses on the detailed elaboration and summary perspective of the design and application of diketopyrrolopyrrole derivatives‐based organic semiconducting phototheranostics. This paper may provide a new sight into diketopyrrolopyrrole derivatives for developing personalized theranostics, while opening the door to cancer ...
Bo Wang   +4 more
wiley   +1 more source

Purine Chemistry in the Early RNA World at the Origins of Life: From RNA and Nucleobases Lesions to Current Key Metabolic Routes

open access: yesChemBioChem, EarlyView.
In the nascent processes of the beginnings and evolution of life, nucleobases and especially purines, ribonucleos(t)ides and primitive RNAs have been continuously modified. A RNA‐peptide world and key metabolic pathways probably have emerged from the corresponding chemical modifications resulting from adenine deamination, purine alkylation and ...
Jean‐Luc Décout   +1 more
wiley   +1 more source

Response of piglets to the valine content in diet in combination with the supply of other branched-chain amino acids

open access: yesAnimal, 2011
The branched-chain amino acids (BCAA) valine (Val) and isoleucine (Ile) are considered to be among the next-limiting amino acids for growth in piglets.
M. Gloaguen   +6 more
doaj  

Dependence of Sidechain Rotamer Preference on Backbone Conformation: Relative Free Energy Calculations for Valine and Leucine [PDF]

open access: yesarXiv, 2002
Three dimensional relative free energy calculations are used to directly calculate the dependence of the preferred sidechain rotamers for valine and leucine on the conformation of the backbone. Specifically, umbrella restrained molecular dynamics calculations are used to sample all of Ramachandran space for chi values surrounding the common rotameric ...
arxiv  

Valine Requirement for Reproduction in Swine

open access: yesJournal of Animal Science, 1983
Five levels of L-valine [3.3 (basal), 5.5, 7.8, 10.1 and 12.4 g/d] were fed to gilts from one estrus before mating through two pregnancies and for 30 d of a third pregnancy. Five litter-mate outcome groups of five animals each were allocated randomly to the diet treatments. Animals were individually fed 1.82 kg/d premating and during pregnancy.
A, Robles-Cabrera, V C, Speer
openaire   +3 more sources

Identification of key active site positions controlling the chemoselectivity of Aspergillus brasiliensis unspecific peroxygenase

open access: yesChemBioChem, Accepted Article.
Heme‐containing unspecific peroxygenases (UPOs) have catched significant attention as biocatalysts for oxidation reactions due to their ability to function without expensive nicotinamide cofactors. In our recent study, the UPO from Aspergillus brasiliensis (AbrUPO) was found to catalyze the aromatic hydroxylation of substituted benzenes, a feature that
Fabian Schmitz   +8 more
wiley   +1 more source

Methylmalonic Aciduria in Children: Clinical Recommendations

open access: yesПедиатрическая фармакология, 2017
Methylmalonic acidemia (aciduria) is an inherited metabolic disturbance from the group of organic acidemias (acidurias). The article presents etiopathogenetic, epidemiological, diagnostic, and therapeutic aspects of the problem.
Alexander A. Baranov   +16 more
doaj   +1 more source

Transport properties of Valine in water at different temperatures [PDF]

open access: yesarXiv, 2018
Molecular Dynamics simulations of Valine in water and their binary mixtures ($N_{Val}$ =0.003 \& $N_{water}$=0.997, $N$ representing the mole fraction) have been accomplished at temperatures 293.20 K, 303.20 K, 313.20 K, 323.20 K, and 333.20 K using the OPLS/AA force field parameters. The work has been carried out by using GROMACS.
arxiv  

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