Results 1 to 10 of about 186,546 (339)

Purine-Furan and Purine-Thiophene Conjugates [PDF]

open access: yesMolbank, 2018
Furyl and thienyl moieties were introduced into a purine structure to elevate its fluorescence properties, while a trityl group was used to increase the amorphous properties of the purine compounds.
Zigfrīds Kapilinskis   +2 more
doaj   +2 more sources

Characterization of Guanine Deaminase from Kluyveromyces marxianus and Its Industrial Application to Reduce Guanine Content in Beer [PDF]

open access: yesFoods
Guanine deaminase (GDA) catalyzes the first step in purine catabolism by converting guanine to xanthine. Despite its significant role in the development of low-purine food, studies on GDA remain limited compared to other metabolic deaminases. To identify
Peng Zhou   +4 more
doaj   +2 more sources

The major role of Listeria monocytogenes folic acid metabolism during infection is the generation of N-formylmethionine

open access: yesmBio, 2023
Folic acid and its derivatives (folates) play central roles in one-carbon metabolism, necessary for the synthesis of purines, pyrimidines, and some amino acids.
Ying Feng   +2 more
doaj   +1 more source

Structure-Based Design of 2-Aminopurine Derivatives as CDK2 Inhibitors for Triple-Negative Breast Cancer

open access: yesFrontiers in Pharmacology, 2022
Cyclin-dependent kinase 2 (CDK2) regulates the progression of the cell cycle and is critically associated with tumor growth. Selective CDK2 inhibition provides a potential therapeutic benefit against certain tumors. Purines and related heterocycle (e.g.,
Hanzhi Liang   +6 more
doaj   +1 more source

Protonated pyrimidine-purine-purine triplex [PDF]

open access: yesNucleic Acids Research, 1993
We have studied a protonated pyrimidine-purine-purine (Py-Pu-Pu) triplex, which is formed between the d(C)nd(G)n duplex and the d(AG)m oligonucleotide as the third strand and carries the CG*A+ protonated base-triads. We have observed such an intermolecular complex between a plasmid carrying the d(C)18 d(G)18 insert and the d(AG)5 oligonucleotide ...
Ingeborg Jansen   +7 more
openaire   +3 more sources

Ferrocenoyl-adenines: substituent effects on regioselective acylation

open access: yesBeilstein Journal of Organic Chemistry, 2022
A series of N6-substituted adenine–ferrocene conjugates was prepared and the reaction mechanism underlying the synthesis was explored. The SN2-like reaction between ferrocenoyl chloride and adenine anions is a regioselective process in which the product ...
Mateja Toma   +5 more
doaj   +1 more source

The interaction of aflatoxins with purines and purine nucleosides [PDF]

open access: yesBiochemical Journal, 1967
From measurements of thermal hyperchromicity and the behaviour of an aflatoxin-DNA mixture on a Sephadex column it was concluded that aflatoxin B(1) is capable of weak binding to single-stranded DNA. The interactions of the aflatoxins (B(1), G(1) and G(2)) with nucleosides result in difference spectra and suggest that the purine bases and the amino ...
K. R. Rees, Janet I. Clifford
openaire   +3 more sources

Assessment of the temporal trend and daily profiles of the dietary purine intake among Chinese residents during 2014 to 2021

open access: yesFrontiers in Nutrition, 2023
The incidence of hyperuricemia is on the rise in China, primarily due to dietary habits. However, limited data exists regarding dietary purine intake in the country.
Shiwen Li   +5 more
doaj   +1 more source

Comparative study and relationship analysis between purine content, uric acid, superoxide dismutase, and growth traits in purebred and crossbred Thai native chickens

open access: yesFrontiers in Veterinary Science, 2023
The objective was to compare and analyze the relationship between growth, purine content, uric acid, and superoxide dismutase (SOD) in purebred and crossbred Thai native chickens. A total of 300 Thai native chickens were divided into 3 groups.
Veeraya Tantiyasawasdikul   +6 more
doaj   +1 more source

Synthesis and Cytotoxic Activity of the Derivatives of N-(Purin-6-yl)aminopolymethylene Carboxylic Acids and Related Compounds

open access: yesMolecules, 2023
Testing a number of N-[omega-(purin-6-yl)aminoalkanoyl] derivatives of 7,8-difluoro-3,4-dihydro-3-methyl-2H-[1,4]benzoxazine in a panel of nine tumor cell lines has shown that the studied compounds exhibit high cytotoxic activity, especially against 4T1 ...
Victor P. Krasnov   +9 more
doaj   +1 more source

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