Results 141 to 150 of about 390,444 (399)

Re-evaluation of Adrenocorticotropic Hormone and Melanocyte Stimulating Hormone Activation of GPR139 in Vitro

open access: yesFrontiers in Pharmacology, 2018
It is now well established that GPR139, a G-protein coupled receptor exclusively expressed in the brain and pituitary, is activated by the essential amino acids L-tryptophan (L-Trp) and L-phenylalanine (L-Phe) via Gαq-coupling.
Diane Nepomuceno   +5 more
doaj   +1 more source

Action of Phenylalanine Metabolites on Glutamic Acid Decarboxylase and gamma-Aminobutyric Acid---alpha-Ketoglutaric Acid Transaminase in Brain. [PDF]

open access: bronze, 1959
Arne Hanson   +5 more
openalex   +1 more source

Engineering Electron Transfer Flux between Cytochrome P450 Enzyme and P450 Reductase to Enhance Serotonin Production in Escherichia Coli

open access: yesAdvanced Science, EarlyView.
The electron transfer flux in CPR‐P450 catalytic system is systematically engineered through: i) enhancing electron transfer rate by redesigning the putative electron transfer pathway of CPR; ii) improving electron‐receiving rate by evolving the heme domain of tryptophan‐5‐hydroxylase (T5H); iii) enlarging electron supply by fine‐tuning NADPH synthesis.
Wenzhao Xu   +4 more
wiley   +1 more source

Recommendations for the nutrition management of phenylalanine hydroxylase deficiency

open access: yesGenetics in Medicine, 2014
The effectiveness of a phenylalanine-restricted diet to improve the outcome of individuals with phenylalanine hydroxylase deficiency (OMIM no. 261600) has been recognized since the first patients were treated 60 years ago.
Rani H. Singh   +11 more
semanticscholar   +1 more source

Phenylalanine determined in plasma with use of phenylalanine dehydrogenase and a centrifugal analyzer

open access: yesClinical Chemistry, 1993
Abstract Quantitative determination of plasma phenylalanine (Phe) is essential for the diagnosis of phenylketonuria (PKU) and the control of dietary therapy of PKU patients. We have adapted a spectrophotometric method (Clin Chim Acta 1991;201:95-8) based on phenylalanine dehydrogenase (EC 1.4.1.-) for rapid and accurate determinations of
C Farré, M. A. Vilaseca, F Ramón
openaire   +4 more sources

JA‐Mediated Regulation of Amino Acid Homeostasis Adjusts Metabolic Flux and Enhances Spider Mite Tolerance via the SlJAZ8‐SlWRKY57‐SlAVT6s Module in Tomato

open access: yesAdvanced Science, EarlyView.
This study elucidates a novel SlJAZ8‐SlWRKY57‐SlAVT6A/SlAVT6B module that effectively channels metabolic flux from primary to secondary metabolism, impacting plant growth, development, and resistance. Two novel vacuolar amino acid exporters, SlAVT6A and SlAVT6B, fine‐tunes trichomes, terpenes, and gibberellins, bolstering spider mite resistance.
Yingchen Hao   +11 more
wiley   +1 more source

Serum tryptophan, kynurenine, phenylalanine, tyrosine and neopterin concentrations in 100 healthy blood donors

open access: yesPteridines, 2015
Formation of neopterin, a biomarker of the activated human immune system, is linked with tryptophan (TRP) and phenylalanine (PHE) metabolism. To obtain normal values, in this study, serum concentrations of neopterin as well as of TRP, PHE and their ...
Geisler Simon   +5 more
doaj   +1 more source

Tailor-Made Nanostructured Ion Selective MCM-48 Membranes [PDF]

open access: yes, 2003
Mesoporous templated MCM-48 silica was prepared using a C16 surfactant as template. The MCM-48 powders and thin films were characterized by different techniques. Two types of porous supports were used, namely macroporous ¿-alumina and silicon microsieves.
Berg, Albert van den   +5 more
core   +1 more source

Shikimate and Phenylalanine Biosynthesis in the Green Lineage

open access: yesFrontiers in Plant Science, 2013
The shikimate pathway provides carbon skeletons for the aromatic amino acids l-tryptophan, l-phenylalanine, and l-tyrosine. It is a high flux bearing pathway and it has been estimated that greater than 30% of all fixed carbon is directed through this ...
Takayuki Tohge   +3 more
semanticscholar   +1 more source

Advanced Pharmaceutical Nanotechnologies Applied for Chinese Herbal Medicines

open access: yesAdvanced Science, EarlyView.
This review offers a comprehensive overview of pharmaceutical nanotechnology strategies to address limitations associated with the complex material basis and relative mild therapeutic efficacy of Chinese herbal medicines, and summarizes the advantages of these strategies.
Jiameng Li   +11 more
wiley   +1 more source

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