Results 11 to 20 of about 5,912 (161)

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

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   +5 more sources

Mechanistic Study of ROS-photogeneration by Pterin

open access: yesPteridines, 2011
Pterins are widespread in biological systems and possess photosensitizing activities. In the present study, the photosensitization mechanism of acid form of pterin (PTA) and basic form of pterin (PTB) is investigated by means of density functional theory
Ji Hong-Fang, Shen Liang
doaj   +2 more sources

Room-temperature crystal structure of a metal-dependent W-formate dehydrogenase by serial synchrotron crystallography. [PDF]

open access: yesActa Crystallogr D Struct Biol
We report a room‐temperature serial synchrotron X‐ray crystallographic structural analysis of Nitratidesulfovibrio vulgaris formate dehydrogenase AB, an enzyme that reduces CO2 to formate.Metal‐dependent formate dehydrogenases (Fdhs) are a promising research target in efforts to mitigate climate change by developing active, efficient, selective and ...
Vilela-Alves G   +7 more
europepmc   +2 more sources

Synthesis, Characterization and Chlorination of 4-(Pentyloxy)-7-(prop-2-yn-1-yloxy)pteridin-2-amine

open access: yesMolbank, 2023
A new alkyne functionalized pterin derivative was synthesized through a reaction of 7-chloropterin with propargyl alcohol in the presence of sodium hydride.
Jevy V. Correia   +2 more
doaj   +1 more source

Comparison of Pteridine Normalization Methods in Urine for Detection of Bladder Cancer

open access: yesDiagnostics, 2020
Pterin compounds belong to the group of biomarkers for which an increase in interest has been observed in recent years. Available literature data point to this group of compounds as potential biomarkers for cancer detection, although the biochemical ...
Piotr Kośliński   +6 more
doaj   +1 more source

Direct coordination of pterin to FeII enables neurotransmitter biosynthesis in the pterin-dependent hydroxylases

open access: yes, 2021
The pterin-dependent nonheme iron enzymes hydroxylate aromatic amino acids to perform the biosynthesis of neurotransmitters to maintain proper brain function.
Babicz, Jeffrey T.   +27 more
core   +1 more source

Exploring the scope of DBU-promoted amidations of 7-methoxycarbonylpterin

open access: yesBeilstein Journal of Organic Chemistry, 2020
The synthetic utility of pterins is often hampered by the notorious insolubility of this heterocycle, slowing the development of medicinally relevant pteridine derivatives.
Anna R. Bockman, Jeffrey M. Pruet
doaj   +1 more source

The pterin binding site of dihydropteroate synthase (DHPS): In silico screening and in vitro antibacterial activity of existing drugs

open access: yesResults in Chemistry, 2023
Antimicrobial resistance has rendered the sulfonamide class of antibiotics obsolete. An additional binding site on the dihydropteroate synthase (DHPS) enzyme, i.e., the pterin binding site, has been shown to be a valid alternative to the well-known para ...
Maryké Shaw   +3 more
doaj   +1 more source

Structures of pterin-7-carboxamides 1–4.

open access: yes, 2022
Structures of pterin-7-carboxamides 1–4.
Kazuki Nagatsu (14248052)   +9 more
core   +1 more source

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