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18 résultats avec le mot-clé: 'α amino acids'

Cloud Point Extraction of α-Amino Acids

The present work concerns the study of cloud point extraction (CPE) as a method of recovery and valorization of several α-amino acids from aqueous solutions, using the

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2021
Cloud Point Extraction of α-Amino Acids

The results of amino acid extraction from their 7.5 g/L (0.75 wt.%) aqueous solutions with Oxo-C 10 E 4 , according to two variables: wt.% surfactant (X t ), and temperature (T),

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2021
Organocatalytic Multicomponent Synthesis of α/β‐Dipeptide Derivatives

The diversity: A straightforward organocatalyzed multicomponent reaction (MCR) involving readily available hydroxamic acids-derived from naturally occurring α-amino acids

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2021
Enantioselective catalytic synthesis of α-aryl-α-SCF 3 -β 2,2 -amino acids

Based on our recent progress in the utilization of compounds 1 to access masked chiral b 2,2 -AAs 2 under chiral phase-transfer catalysis, 14 we now became interested in

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2021
Ischémie digestive chronique et kyste de l’ovaire

En septembre 2008, une exploration chirurgicale du tronc cœliaque et de l’artère mésentérique supérieure ne per- mettait pas de gestes de revascularisation, en raison de

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2022
Decoding biomineralization: Interaction of a Mad10-derived peptide with magnetite thin films

The reduced number of rupture events measured for Mad10sc highlights that both the amino acid composition and the regular arrangement of these amino acids on the surface of an α

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2021
CATs and HATs: the SLC7 family of amino acid transporters

with 4F2hc] Na + indep.: cationic amino acids; Na + depen.: large neutral l -amino acids (system y + L) E (preferentially intracellular cationic amino acid for extracellular

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2021
RAPPORT PARTIEL A 24H D ANALYSES

Point prélèvement : Cantine scolaire au réfectoire – Fontaine réfrigérée Adresse : 401 chemin de Valbois, 06330 Roquefort les Pins Date et heure de prélèvement : Lundi

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2022
Synthetic mimics of beta-sheets : design, synthesis and evaluation of their ability to modulate the aggregation of the beta-amyloid 1-42 peptide.

We decided to synthesized the 2:1 [Aza/α]-tripeptide sequence aVal-aAla-Val-CONH 2 (Molecule 5.2) (Figure 5.2), composed by two aza-amino acids aVal and aAla and one natural amino

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2021
Access to Unprotected β-Fluoroalkyl β-Amino Acids and Their α-Hydroxy Derivatives

ABSTRACT: Unprotected -(het)aryl--fluoroalkyl -amino acids and their -hydroxy derivatives can be readily obtained using a decarboxylative Mannich-type reaction

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2021
Axially chiral Ni(II) complexes of α-amino acids: Separation of enantiomers and kinetics of racemization

Improved synthesis of proline‐derived Ni(II) complexes of glycine: versatile chiral equivalents of nucleophilic glycine for general asymmetric synthesis of α‐ amino acids. Moore

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2021
Administration transdermique non-invasive par iontophorèse de protéines: démonstration de la faisabilité et de la compréhension du mécanisme d'électrotransport

In this study, different molecular properties – protein volume, total number of charged amino acids, number of positively charged amino acids, number of

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2022
Propriétés nutritionnelles de la citrulline : un nouvel acteur dans la régulation du métabolisme protéino-énergétique

Effects of leucine and citrulline versus non-essential amino acids on muscle protein synthesis in fasted rat: a common activation

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Evolution of biological sequences implies an extreme value distribution of type I for both global and local pairwise alignment scores.

tion hazard rate for the reliability of amino acids' mutual information: it depends 1) on the distribution of the amino acids and 2) on the distribution of amino acid sim-

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A reassessment of prebiotically relevant chemical agents for the activation of α-amino acids and peptides

Several groups, including ours, have provided evidence that α-amino acids and peptides, strongly activated in the forms of N-carboxyanhydrides (NCAs) [10-12] or

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2021
TRIBUNAL ADMINISTRATIF DE DIJON N RÉPUBLIQUE FRANÇAISE UNION DES PRODUCTEURS DE VINS «MÂCON» AU NOM DU PEUPLE FRANÇAIS. M.

Par suite, l’Institut national de l’origine et de la qualité n’a pas méconnu les dispositions précitées en rejetant, par la décision attaquée, la demande

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2022
Concise enantiospecific syntheses of α-hydroxy-β-amino acids and indolizidines of natural origin

A new procedure has been developed for synthesizing enantiomerically pure p-amino acids, a-hydroxy-P-amino acids and certain alkaloids from aspartic acid.. By

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2022
Peptides and peptidomimetics obtention from Capsicum baccatum var. pendulum (Solanaceae) aiming to the antibiofilm activity

Also we provide chemical and molecular information (general information/range of concentration tested, number of amino acids, amino acids sequences, molecular weight, total net

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