Results 11 to 20 of about 196 (49)
Neopterin, as a non-conjugated pteridine, is synthesized from guanosine triphosphate and its production is upregulated upon the activation of cellular immune response.
Girgin Gözde+5 more
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Glyceryl-Ether Monooxygenase [EC 1.14.16.5J Part VIII. Probing the Nature of the Active Site
The V /K kinetic parameters for glyceryl-ether monooxygenase with 3-1 '-n-alkoxypropane-I,2-diols having alkyl sidechains varying from Cll to C22 (lb-k, 2a and b, and 3d) were determined. Maximum activity was found with the CI6 ethers, dropping almost to
Taguchi Hiroyasu+2 more
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Two types of pteridine - polyamine conjugates designed on oncopterin perform different actions to DNA. The most obvious difference is their actions in DNA compaction. One of the pteridine - polyamine conjugates, PT- 2R, containing a polyamine substituent
Murata Shizuaki, Chen Ning
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Age-dependance of pteridines in the malaria vector, Anopheles stephensi
Determining the accurate age of malaria vectors is crucial to measure the risk of malaria transmission. A group of fluorescent chemicals derived from a pyrimidine-pyrazine ring structure known as pteridines from the head, thorax and whole body of adult ...
Edalat Hamideh+2 more
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A simple and effective method for the synthesis of unknown 1-methyl-7-arylfuro[3,2-g]pteridine-2,4(1H,3H)-diones by dehydration of the corresponding 1-methyl-6-phenacyl-pteridine-2,4,7(1H,3H,8H)-triones is reported in the article. It was shown that their
Maxim Stanislavovich Kazunin+4 more
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Pteridine levels and head weights are correlated with age and colony task in the honey bee, Apis mellifera [PDF]
Background. The age of an insect strongly influences many aspects of behavior and reproduction. The interaction of age and behavior is epitomized in the temporal polyethism of honey bees in which young adult bees perform nurse and maintenance duties ...
Frank D. Rinkevich+4 more
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Inhibitory Effects of Pteridines on the Cytochrome P-450 Enzyme System
The effects of 17 different pteridine derivatives on rat liver microsomal cytochrome P-450 catalyzed degradation of aminoantipyrin were studied.
Horejsi Renate+5 more
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The parasites Trypanosoma brucei (Tb) and Leishmania major (Lm) cause the tropical diseases sleeping sickness, nagana, and cutaneous leishmaniasis. Every year, millions of humans, as well as animals, living in tropical to subtropical climates fall victim
Katharina Possart+3 more
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A new method for assay of sepiapterin deaminase (3.5.4.24) activity by use of high performance liquid chromatography (HPLC) was developed. By this sensitive method the enzyme activity in the cell organelle was assayed.
Tsusué M., Kuroda S., Sawada H.
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Occurrence and significance of folic acid
Folic acid is a naturally occurring pteridine, which was originally isolated from plants. Folic acid (pteroyl-glutamic acid) is composed of pteridine (6-methylptero), p-aminobenzoic acid (PABA) and glutamic acid.
Cieślik Ewa, Cieślik Iwona
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