Results 31 to 40 of about 13,429,421 (274)

Safety and efficacy of l‐histidine monohydrochloride monohydrate produced by fermentation with Escherichia coli (NITE BP‐02526) for all animal species

open access: yesEFSA Journal, 2019
Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on l‐histidine monohydrochloride monohydrate produced by fermentation with ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP)   +29 more
doaj   +1 more source

Split histidine kinases enable ultrasensitivity and bistability in two-component signaling networks [PDF]

open access: yes, 2012
Bacteria sense and respond to their environment through signaling cascades generally referred to as two-component signaling networks. These networks comprise histidine kinases and their cognate response regulators.
Steven L Porter   +16 more
core   +2 more sources

VLE of Carbon Dioxide-Loaded Aqueous Potassium Salt of L-Histidine Solutions as a Green Solvent for Carbon Dioxide Capture: Experimental Data and Modelling

open access: yesInternational Journal of Chemical Engineering, 2019
In this study, vapour-liquid equilibrium of CO2-loaded aqueous potassium salt of L-histidine was studied for a wide range of temperature (313.15–353.15 K), pressure (150–4000 kPa), and solvent concentrations (1–2.5 molar).
Afaf Syalsabila   +3 more
doaj   +1 more source

Preparation of 2'-13C-L-Histidine Starting from 13C-Thiocyanate: Synthetic Access to Any Site-Directed Stable Isotope Enriched L-Histidine

open access: yesMolecules, 2014
1-Benzyl-2-(methylthio)-imidazole-5-ketone is obtained in a few simple steps starting from thiocyanate and glycine amide (glycin). Subsequent treatment with diethyl phosphorocyanidate and functional group manipulations gives 1-benzyl-5-chloromethyl ...
Sarra Talab   +2 more
doaj   +1 more source

Histamine derived from probiotic Lactobacillus reuteri suppresses TNF via modulation of PKA and ERK signaling. [PDF]

open access: yesPLoS ONE, 2012
Beneficial microbes and probiotic species, such as Lactobacillus reuteri, produce biologically active compounds that can modulate host mucosal immunity. Previously, immunomodulatory factors secreted by L. reuteri ATCC PTA 6475 were unknown.
Carissa M Thomas   +8 more
doaj   +1 more source

Heteroligand copper(II), nickel(II), and cobalt(II) complexes with isonicotinic acid hydrazide and L-histidine

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2021
Complex formation in the ternary systems copper(II)/nickel(II)/cobalt(II) – isonicotinic acid hydrazide – L-histidine was studied by the methods of spectrophotometry and mathematical modeling in an aqueous solution with 0.1 mol dm–3 KNO3 as a background ...
N.V. Troshanin, T.I. Bychkova
doaj   +1 more source

Histidine-Triggered GO Hybrid Hydrogels for Microfluidic 3D Printing

open access: yes, 2022
Graphene oxide (GO) hydrogels have provided tremendous opportunities in designing and fabricating complex constructs for diverse applications, while their 3D printing without photocuring is still a challenging task due to their low viscosity ...
Yuanjin Zhao (1428505)   +3 more
core   +1 more source

High-throughput screening for the asymmetric transformation reaction of L-histidine to D-histidine by capillary array electrophoresis

open access: yes, 2006
Asymmetric transformation reaction of L-histidine to D-histidine was studied by homemade capillary array electrophoresis for the first time.
王利   +5 more
core   +1 more source

Molecular Biology of L-Histidine Decarboxylase

open access: yesYAKUGAKU ZASSHI, 1994
L-Histidine decarboxylase (HDC) catalyzes the formation of histamine from L-histidine. This biogenic amine is known to exert various effects in physiological and pathological reactions. In contrast to the well-known mechanism of histamine action through its interaction with specific receptors, the mechanisms regulating HDC gene expression are not ...
K, Yatsunami, T, Fukui, A, Ichikawa
openaire   +3 more sources

Enantio-differentiating catalytic oxidation by a biomimetic trinuclear copper complex containing L-histidine residues

open access: yes, 2003
The trinuclear complex [Cu3PHI]6+, derived from a ligand containing two chiral L-histidine residues, performs the catalytic oxidation of L- and D-Dopa with remarkable enantio-differentiation; this depends on the anchoring effect provided by the copper ...
E. Monzanic   +4 more
core   +2 more sources

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