Results 91 to 100 of about 5,912 (161)
, 1987 Bu çalışmada bir pteridin türevi olan pterin-6-car-boxylic acid' in Estrus siklusunun estrus, diestrus ve pro- estrus evrelerinde sıçanların hipofiz ve pineal ultrastrüktürü üzerine etkilerinin incelenmesi amaçlanmıştır.
Üner, Mustafa
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Optimized Routes to 7-Carboxymethyl-Pterin: A Useful Building Block for Medicinal Chemists
, 2018 Pterins are a class of nitrogen-heterocycle with wide application in the field of medicinal chemistry. The importance of pterin derivatives stems from discovery of numerous biologically relevant pterins, such as folate and bioterin.
Bennett, Zachary +2 more
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Folic Acid With Fluorene: A Complexation Study by UV and FTIR Spectroscopies
Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017 The complexation between folic acid and a typical polyaromatic hydrocarbon, fluorene, was investigated using FTIR and UV spectra. Appearance of a new IR band at 2401cm−1 demonstrates that NH2–C=N moiety on pterin ring in folic acid is protonated ...
K. K. Hammud +4 more
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Pterin and folate salvage. Plants and Escherichia coli lack capacity to reduce oxidized pterins
, 2007 Dihydropterins are intermediates of folate synthesis and products of folate breakdown that are readily oxidized to their aromatic forms. In trypanosomatid parasites, reduction of such oxidized pterins is crucial for pterin and folate salvage.
Naponelli V. +7 more
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Enzymatic Assimilation of Cyanide via Pterin-Dependent Oxygenolytic Cleavage to Ammonia and Formate in Pseudomonas fluorescens NCIMB 11764 [PDF]
, 2004 Article on the enzymatic assimilation of cyanide via pterin-dependent oxygenolytic cleavage to ammonia and formate in Pseudomonas fluorescens NCIMB ...
Dolghih, Elena +2 more
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Photosensitization of peptides and proteins by pterin derivatives
Pteridines, 2017 Proteins are one of the preferential targets of the photosensitized damaging effects of ultraviolet (UV) radiation on biological system. Pterins belong to a family of heterocyclic compounds, which are widespread in living systems and participate in ...
Dantola Maria Laura +5 more
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, 2014 Male bluefin killifish (Lucania goodei) exhibit extensive color variation in their fins, but the utility of this variation has not yet been determined. We collected males from multiple populations and spectrophotometrically determined the pigment types ...
Fuller, Rebecca C., Johnson, Ashley M.
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, 1992 A recently described new form of hyperphenylalaninemia is characterized by the excretion of 7-substituted isomers of biopterin and neopterin and 7-oxo-biopterin in the urine of patients.
Heizmann, Claus W. +15 more
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, 2016 New octahedral pterine complexes of the general formula [M(en)(pterin)2] (M = Ni (1), Cd (2)) have been synthesized by reaction between the pterin ligand and ethylenediamine complexes of Ni(II) and Cd(II) in a basic aqueous solution.
Antonella Cataldi (2678065) +6 more
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Tetrahydrobiopterin and inherited hyperphenylalaninemias
The Turkish Journal of Pediatrics, 1996 Tetrahydrobiopterin deficiency, a variant of hyperphenylalaninemia, may be caused by deficiency of one of the following enzymes: guanosine triphosphate cyclohydrolase 1,6-pyruvoyltetrahydropterin synthase, dihydropteridin reductase and pterin-4a ...
N Blau, B Thony, M Spada, A Ponzone
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