Results 21 to 30 of about 232,397 (303)

Identification of the Allosteric Site for Phenylalanine in Rat Phenylalanine Hydroxylase [PDF]

open access: yesJournal of Biological Chemistry, 2016
Liver phenylalanine hydroxylase (PheH) is an allosteric enzyme that requires activation by phenylalanine for full activity. The location of the allosteric site for phenylalanine has not been established. NMR spectroscopy of the isolated regulatory domain (RDPheH(25-117) is the regulatory domain of PheH lacking residues 1-24) of the rat enzyme in the ...
Shengnan, Zhang, Paul F, Fitzpatrick
openaire   +2 more sources

Sustainable synthesis of L-phenylalanine derivatives in continuous flow by immobilized phenyl ammonia lyase [PDF]

open access: yes, 2023
The application of phenyl ammonia lyases for the amination of a variety of cinnamic acids has been shown to be a cost-efficient method to produce a variety of phenylalanine analogues.
Snajdrova, Radka   +3 more
core   +1 more source

Aromatic Dipeptide Homologue-Based Hydrogels for Photocontrolled Drug Release

open access: yesNanomaterials, 2022
Peptide-based hydrogels are considered of special importance due to their biocompatibility and biodegradability. They have a wide range of applications in the biomedical field, such as drug delivery, tissue engineering, wound healing, cell culture media,
Chloé Guilbaud-Chéreau   +5 more
doaj   +1 more source

Nitrogen Economy and Nitrogen Environmental Interactions in Conifers

open access: yesAgronomy, 2016
Efficient acquisition, assimilation and economy of nitrogen are of special importance in trees that must cope with seasonal periods of growth and dormancy over many years.
Rafael A. Cañas   +4 more
doaj   +1 more source

Combining metabolite doping and metabolic engineering to improve 2-phenylethanol production by engineered cyanobacteria

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
2-Phenylethanol (2-PE) is a rose-scented aromatic compound, with broad application in cosmetic, pharmaceutical, food and beverage industries. Many plants naturally synthesize 2-PE via Shikimate Pathway, but its extraction is expensive and low-yielding ...
Giulia Usai   +11 more
doaj   +1 more source

Mechanism of phenylalanine regulation of phenylalanine hydroxylase.

open access: yesJournal of Biological Chemistry, 1990
The mechanism of phenylalanine regulation of rat liver phenylalanine hydroxylase was studied. We show that phenylalanine "activates" phenylalanine hydroxylase, converting it from an inactive to active form, by binding at a true allosteric regulatory site.
R, Shiman, S H, Jones, D W, Gray
openaire   +2 more sources

Phenylalanine-Based Co2+ and Cd2+ 1D Coordination Polymers: Structural Properties and Catalytic Application for Solvent-Free Aerobic Oxidation of Cycloalkene

open access: yes, 2023
Two 1D coordination polymers (CPs) with general formula [M(L)(H2O)(AcO)]n, (M = Co (1) or Cd (2), AcO = acetate anion and L denotes l-phenylalanine based ligand), were synthesized and fully characterized by various spectroscopies (UV–vis, FTIR, and NMR),
Patricio Cancino (8491314)   +13 more
core   +1 more source

Phenylalanine modulates casein synthesis in bovine mammary epithelial cells by influencing amino acid transport and protein synthesis pathways

open access: yesFrontiers in Nutrition
The efficiency of phenylalanine (Phe) utilization for milk protein synthesis in dairy cows is limited, and its uptake and metabolic mechanisms in the mammary tissue remaining unclear. This study investigated the effects of Phe availability (0.07, 0.14, 0.
Yuanyuan Xing   +18 more
doaj   +1 more source

The Response Strategy of Maize, Pea and Broad Bean Plants to Different Osmotic Potential Stress [PDF]

open access: yesJournal of Stress Physiology & Biochemistry, 2013
This investigation was conducted to study the tolerance strategy of maize, broad bean and pea plants to salinity stress with exogenous applications of proline or phenylalanine on seed germination and seedlings growth. From the results obtained, it can be
Hamdia M. Abd El-Samad, M.A.K. Shadadd
doaj  

Immune activation and inflammation in patients with cardiovascular disease are associated with elevated phenylalanine-to-tyrosine ratios

open access: yesPteridines, 2013
Higher serum neopterin concentrations and kynurenine-to-tryptophan (Kyn/Trp) ratios are associated with increased mortality in patients with coronary artery disease (CAD). Preferentially, Th1-type cytokine interferon-γ stimulates tryptophan breakdown and
Mangge Harald   +5 more
doaj   +1 more source

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