Results 61 to 70 of about 4,377 (174)

Capture‐SELEX of DNA Aptamers for Highly Selective Binding of Folate

open access: yesChemBioChem, Volume 27, Issue 10, 27 May 2026.
Using capture‐SELEX, a DNA aptamer with sub‐micromolar affinity for folate was isolated, showing excellent selectivity. Using this aptamer, a light‐up fluorescent biosensor was developed for folate detection. Folate (vitamin B9) is an essential micronutrient for human health, particularly during pregnancy.
Yachen Xie, Yifan Chen, Juewen Liu
wiley   +1 more source

Anticancer Photodynamic and Non-photodynamic Effects of Pterin Derivatives on a Pancreatic Cancer Cell Line

open access: yesJournal of Pharmacological Sciences, 2008
To evaluate the feasibility of two kinds of pterin derivatives, 2-(N,N-dimethylaminomethyleneamino)-6-formyl-3-pivaloylpteridin-4-one (DFP) and 2-(N,N-dimethylaminomethyleneamino)-3-pivaloylpteridin-4-one (DP), as anticancer drugs, their photodynamic and
Takashi Miyoshi   +6 more
doaj   +1 more source

The pterin molybdenum cofactors.

open access: yesJournal of Biological Chemistry, 1992
crassa, demonstrated that the inactive apoprotein of nitrate reductase in extracts of the mutant could be reconstituted by the addition of denatured preparations of purified molybdoenzymes from animal, fungal, or bacterial origin. This crucial finding showed that mol- ybdoenzymes contain a dissociable entity fitting the description of a cofactor and ...
K V, Rajagopalan, J L, Johnson
openaire   +2 more sources

Pterin Metabolism In Haemodialysis Patients

open access: yesPteridines, 1989
Patients undertaking maintenance haemodialysis may develop a variety of neurological disorders, the most serious of which is aluminium induced encephalopathy.
Altmann Paul   +5 more
doaj   +1 more source

Biosynthesis of Pteridines in Insects: A Review

open access: yesInsects
Pteridines are important cofactors for many biological functions of all living organisms, and they were first discovered as pigments of insects, mainly in butterfly wings and the eye and body colors of insects. Most of the information on their structures
Juan Ferré
doaj   +1 more source

QT-AIM analysis of neutral pterin and its anionic and cationic forms

open access: yesPteridines, 2014
Quantum theory of atoms in molecules (QT-AIM) allows detailed insight into the electronic structure of molecules by analysis of the gradient vector field of the electronic density distribution function.
Reibnegger Gilbert
doaj   +1 more source

Crystal structure of (2-amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3O4,N5,O6)aqua(1,10-phenanthroline-κ2N,N′)zinc trihydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination ...
Siddhartha S. Baisya   +2 more
doaj   +1 more source

Promiscuous and Adaptable Enzymes Fill “Holes” in the Tetrahydrofolate Pathway in Chlamydia Species

open access: yesmBio, 2014
Folates are tripartite molecules comprising pterin, para-aminobenzoate (PABA), and glutamate moieties, which are essential cofactors involved in DNA and amino acid synthesis.
Nancy E. Adams   +8 more
doaj   +1 more source

Accessing Bisphosphine Copper(I) Complexes with Recalcitrant Pterin–Phenanthroline Ligands Through Mechanochemistry

open access: yesInorganics
The synthesis of [Cu(PteN˄N)(P˄P)][BF4] complexes with pterin-fused phenanthroline (PteN˄N) derivatives and bisphosphine (P˄P) co-ligands was achieved through a mechanochemical approach. Due to the extremely poor solubility of PteN˄N ligands, traditional
Siva S. M. Bandaru   +4 more
doaj   +1 more source

An in vitro System for Studying Pteridine Biosynthesis In Drosophila melanogaster

open access: yesPteridines, 1991
In vitro organ culture is a system especially useful for the study of metabolic pathways and their regulation. This report applies such a system to the study of the biosynthesis of pteridines in Drosophila melanogaster, determining in vitro optimal ...
Escriche B., Silva F. J.
doaj   +1 more source

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