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Pushing at the Boundaries of Pterin Chemistry [PDF]

open access: yesMolecules
Pterins are molecules of substantial interest as they occur in nature in a number of forms with quite distinct and often indispensable roles. Chemically, the synthesis of the principle pterin scaffold is comparably simple, while the insolubility of the ...
Jevy V. Correia   +2 more
doaj   +4 more sources

A model to understand type I oxidations of biomolecules photosensitized by pterins

open access: yesJournal of Photochemistry and Photobiology, 2021
Photosensitized oxidations, in part responsible for the harmful effect of UV and visible radiation on biological systems, can take place through type I (generation of radicals) and type II (singlet oxygen) mechanisms.
Carolina Lorente   +2 more
exaly   +3 more sources

Comparative metabolism of conjugated and unconjugated pterins in Crithidia, Leishmania and African trypanosomes. [PDF]

open access: yesPLoS Neglected Tropical Diseases
Mammalian cells synthesise tetrahydrobiopterin de novo, an essential cofactor for hydroxylation of aromatic amino acids, cleavage of ether lipids and the synthesis of nitric oxide.
Han B Ong, Susan Wyllie, Alan H Fairlamb
doaj   +2 more sources

Pterin function in bacteria [PDF]

open access: yesPteridines, 2017
Pterins are widely conserved biomolecules that play essential roles in diverse organisms. First described as enzymatic cofactors in eukaryotic systems, bacterial pterins were discovered in cyanobacteria soon after.
Feirer Nathan, Fuqua Clay
doaj   +2 more sources

Cerebrospinal Fluid Neurotransmitters, Pterins, Folates and Amino Acids in Paediatric Onset Epilepsies: A Tertiary Centre Retrospective Cohort Study [PDF]

open access: yesChildren
Objectives: To investigate the clinical value of cerebrospinal fluid (CSF) testing for biogenic amine, pterins, amino acids, and folates in paediatric onset epilepsies. Methods: Retrospective clinical and biochemical phenotyping of patients with epilepsy
Mario Mastrangelo   +6 more
doaj   +2 more sources

Electron Transfer Initiated Reactions Photoinduced by Pterins

open access: yesPteridines, 2011
Interest in the photochemistry and photophysics of pterins has increased since the participation of this family of compounds in different photobiological processes has been suggested or demonstrated in recent decades.
Carolina Lorente   +2 more
exaly   +2 more sources

Determination of Urinary Pterins by Capillary Electrophoresis Coupled with LED-Induced Fluorescence Detector

open access: yesMolecules, 2019
Urinary pterins have been found as potential biomarkers in many pathophysiological conditions including inflammation, viral infections, and cancer. However, pterins determination in biological samples is difficult due to their degradation under exposure ...
Wojciech Grochocki   +2 more
exaly   +3 more sources

Pterin-Based Red Coloration Predicts the Outcome of Male–Male Competition in Guinan Toad-Headed Lizard [PDF]

open access: yesAnimals
Animal coloration offers a unique opportunity to explore the evolutionary mechanisms underlying phenotypic diversity. Conspicuous coloration caused by pigments plays a crucial role in social signaling across multiple species by conveying information ...
Xiao Xiao   +8 more
doaj   +2 more sources

CSF Amino Acids, Pterins and Mechanism of the Ketogenic Diet

open access: yesPediatric Neurology Briefs, 2015
Investigators from Hospital Sant Joan de Deu, Barcelona, Spain, studied the relationship between the etiology of refractory childhood epilepsy, CSF neurotransmitters, pterins, and amino acids, and response to a ketogenic diet in 60 patients with ...
J Gordon Millichap
exaly   +3 more sources

Analysis of Catecholamines and Pterins in Inborn Errors of Monoamine Neurotransmitter Metabolism—From Past to Future

open access: yesCells, 2019
Inborn errors of monoamine neurotransmitter biosynthesis and degradation belong to the rare inborn errors of metabolism. They are caused by monogenic variants in the genes encoding the proteins involved in (1) neurotransmitter biosynthesis (like tyrosine
Oya Kuseyri Hubschmann
exaly   +3 more sources

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