Results 51 to 60 of about 4,302 (241)
Photochemistry of Resveratrol: Beyond the Reactivity of Metal‐Free Porphyrins Immobilized on Lignin
ChemPhotoChem, EarlyView.Resveratrol photochemistry with singlet oxygen is examined at 450 nm using blue‐LED irradiation and various homogeneous and heterogeneous photosensitizers. Products of CC bond cleavage, electrocyclic ring closure, and [4 + 2] cycloaddition are identified.
Elisa De Marchi +8 more
wiley +1 more source
Pteridines, 2015 Folic acid and pterin derivatives are important heterocyclic compounds found in a variety of biological systems and have been shown to be photochemically active. Understanding the amount of binding that various pterins have with biological macromolecules
Soniat Michael, Martin Christopher B.
doaj +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Animal coloration serves a variety of visually related functions in nature (e.g. mate choice, aposematism and camouflage) but the pigments in integumentary tissues such as skin, scales and feathers may also serve functions unrelated to the visual environment (e.g ...
Beth A. Reinke +2 more
wiley +1 more source
Functional Promiscuity of the COG0720 Family [PDF]
, 2011 The biosynthesis of GTP derived metabolites such as tetrahydrofolate (THF), biopterin (BH4), and the modified tRNA nucleosides queuosine (Q) and archaeosine (G+) relies on several enzymes of the Tunnel-fold superfamily. A subset of these proteins include
Bailly, Marc +9 more
core +2 more sources
Proteomic associations with fluctuation and long‐term changes in BMI: A 40‐year follow‐up study
Diabetes, Obesity and Metabolism, EarlyView.Abstract Introduction While some studies have explored associations between weight change and blood proteins, most have been intervention‐based, offering limited insight into proteomic associations with long‐term weight gain. It remains unclear whether plasma proteins are related to BMI fluctuation over time.
Alvaro Obeso +6 more
wiley +1 more source
Biochemistry and biosynthesis of insect pigments
European Journal of Entomology, 2014 The functional role and commercial importance of insect pigments have been studied for well over a century. They are classified into those synthesized by insects, which include anthraquinones, aphins, pterins, tetrapyrroles, ommochromes, melanins and ...
Gulsaz SHAMIM +3 more
doaj +1 more source
Cerebrospinal fluid neopterin analysis in neuropediatric patients: establishment of a new cut off-value for the identification of inflammatory-immune mediated processes [PDF]
, 2018 OBJECTIVE: A high level of cerebrospinal fluid (CSF) neopterin is a marker of central nervous system inflammatory-immune mediated processes. We aimed to assess data from 606 neuropediatric patients, describing the clinical and biochemical features of ...
Artuch Iriberri, Rafael +8 more
core +1 more source
The FEBS Journal, EarlyView.Molybdenum‐dependent formate dehydrogenases (Mo‐FDHs) contain a strictly conserved lysine residue (K44) in the vicinity of an electron‐transferring [4Fe‐4S] cluster and a catalytically active molybdenum atom coordinated by two molybdopterins (MPT‐1 and MPT‐2).
Feilong Li, Michael Lienemann
wiley +1 more source
Molecular Ecology, EarlyView.Abstract Colour signals play pivotal roles in different communication systems, and the evolution of these characters has been associated with behavioural ecology, integumentary production processes and perceptual mechanisms of the species involved. Here, we present the first insight into the molecular and histological basis of skin colour polymorphism ...
Juliane P. C. Monteiro +7 more
wiley +1 more source
Tetrahydrobiopterin (Bh4) deficiencies: diagnosis and treatment
Acta Pediátrica de México, 2014 Tetrahydrobiopterin (BH4) is an enzyme cofactor of phenylalanine hydroxylase, tyrosine hydroxylase and tryptophan hydroxylase. Three different enzymes affect BH4 synthesis: guanosine triphosphate cyclohydrolase I (GTP CH 1), 6-piruvoil tetrahydropterin ...
Mercedes Martínez-Pardo
doaj +1 more source