Results 11 to 20 of about 134,014 (261)

From Gut Homeostasis to Colorectal Cancer: Spatial and Temporal Reprogramming of Microbial Inosine Signaling [PDF]

open access: yesBiomedicines
Microbial metabolites are increasingly recognized as critical regulators of gut homeostasis, mediating the interaction among gut microbiota, host tissue, and immune response.
Lorenzo Tomassini   +4 more
doaj   +2 more sources

Potential Mechanisms Connecting Purine Metabolism and Cancer Therapy

open access: yesFrontiers in Immunology, 2018
Unrestricted cell proliferation is a hallmark of cancer. Purines are basic components of nucleotides in cell proliferation, thus impaired purine metabolism is associated with the progression of cancer.
Yulong Yin, Tiejun Li, Wenkai Ren
exaly   +3 more sources

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

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 ...
Vladislav A. Malkov   +6 more
openaire   +2 more sources

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

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 ...
J I, Clifford, K R, Rees
openaire   +2 more sources

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

The influence of the addition of polymers on the physico-chemical properties of bentonite suspensions [PDF]

open access: yesScience of Sintering, 2014
Bentonite clays have many applications in industries ranging from construction to cosmetics. Addition of polymers can profoundly influence the properties of bentonite suspensions and we now describe the influence of a range of different polymers.
Stojiljkovic S.   +7 more
doaj   +1 more source

Cryo-EM structures demonstrate human IMPDH2 filament assembly tunes allosteric regulation

open access: yeseLife, 2020
Inosine monophosphate dehydrogenase (IMPDH) mediates the first committed step in guanine nucleotide biosynthesis and plays important roles in cellular proliferation and the immune response. IMPDH reversibly polymerizes in cells and tissues in response to
Matthew C Johnson, Justin M Kollman
doaj   +1 more source

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

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