Results 11 to 20 of about 77,981 (273)

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.
Jie Yin   +9 more
doaj   +3 more sources

The mTORC1 Signaling Network Senses Changes in Cellular Purine Nucleotide Levels

open access: yesCell Reports, 2017
Summary: Mechanistic (or mammalian) target of rapamycin complex 1 (mTORC1) integrates signals from growth factors and nutrients to control biosynthetic processes, including protein, lipid, and nucleic acid synthesis.
Gerta Hoxhaj   +7 more
doaj   +3 more sources

Purine nucleotide depletion prompts cell migration by stimulating the serine synthesis pathway

open access: yesNature Communications, 2022
Nucleotides are essential for different biological processes and have been also associated to cancer development. Depleting cellular nucleotides is a strategy commonly employed to target cancers.
Mona Hoseini Soflaee   +20 more
doaj   +1 more source

Phosphorylation of purine and pyrimidine nucleosides by isolated rat liver mitochondria [PDF]

open access: yes, 1975
Formation of 5'-AMP, 5'-GMP, 5'-CMP and 5'UMP was confirmed in isolated rat liver mitochondria incubated with alpha-ketoglutarate, inorganic phosphate, purine nucleoside and pyrimidine nucleoside. Increased incorporation of 32Pi into ATP, GTP and UTP was
Inaba, Kozo, Oda, Takuzo
core   +1 more source

Characterisation of multiple substrate-specific (d)ITP/(d)XTPase and modelling of deaminated purine nucleotide metabolism [PDF]

open access: yes, 2011
To be viable, organisms possess a number of (deoxy)nucleotide phosphohydrolases, which hydrolyze these nucleotides removing them from the active NTP and dNTP pools. Deamination of purine bases can result in accumulation of such nucleotides as ITP, dITP,
Davies, Oluwafemi   +3 more
core   +2 more sources

Nucleotide-, chemotactic peptide- and phorbol ester-induced exocytosis in HL-60 leukemic cells [PDF]

open access: yes, 1990
Undifferentiated and differentiated HL-60 leukemic cells possess nucleotide receptors which functionally couple to phospholipase C via pertussis toxin-sensitive guanine nucleotide-binding proteins (G-proteins).
Seifert, Roland   +1 more
core   +1 more source

Purine Nucleotide Availability Regulates mTORC1 Activity through the Rheb GTPase

open access: yesCell Reports, 2017
Pharmacologic agents that interfere with nucleotide metabolism constitute an important class of anticancer agents. Recent studies have demonstrated that mTOR complex 1 (mTORC1) inhibitors suppress de novo biosynthesis of pyrimidine and purine nucleotides.
Natasha Emmanuel   +9 more
doaj   +1 more source

Efficient Biocatalytic Synthesis of Dihalogenated Purine Nucleoside Analogues Applying Thermodynamic Calculations [PDF]

open access: yes, 2020
The enzymatic synthesis of nucleoside analogues has been shown to be a sustainable and efficient alternative to chemical synthesis routes. In this study, dihalogenated nucleoside analogues were produced by thermostable nucleoside phosphorylases in ...
Giessmann, Robert T.   +9 more
core   +1 more source

Can adenine nucleotides predict primary nonfunction of the human liver homograft? [PDF]

open access: yes, 1994
Sixty-eight primary liver grafts were analyzed to see whether adenine nucleotides (AN: ATP, ADP, and AMP) or purine catabolites (PC: adenosine, inosine, hypoxanthine, and xanthine) of tissue or effluent can predict primary graft nonfunction.
Bronsther, O   +8 more
core   +1 more source

Inosine triphosphate pyrophosphatase from Trypanosoma brucei cleanses cytosolic pools from deaminated nucleotides

open access: yesScientific Reports, 2022
Inosine triphosphate pyrophosphatases (ITPases) are ubiquitous house-cleaning enzymes that specifically recognize deaminated purine nucleotides and catalyze their hydrolytic cleavage.
Antonio E. Vidal   +5 more
doaj   +1 more source

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