Results 11 to 20 of about 76,319 (326)

Effects of purine nucleotide administration on purine nucleotide metabolism in brains of heroin-dependent rats [PDF]

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2016
Heroin is known to enhance catabolism and inhibit anabolism of purine nucleotides, leading to purine nucleotide deficiencies in rat brains. Here, we determined the effect of exogenous purine nucleotide administration on purine nucleotide metabolism in ...
Kun Li   +3 more
doaj   +4 more sources

FAMIN Is a Multifunctional Purine Enzyme Enabling the Purine Nucleotide Cycle [PDF]

open access: yesCell, 2020
Mutations in FAMIN cause arthritis and inflammatory bowel disease in early childhood, and a common genetic variant increases risk for Crohn’s disease and leprosy. We developed an unbiased liquid chromatography mass spectrometry screen for enzymatic activity of this orphan protein.
Cader, M Zaeem   +21 more
openaire   +8 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

Purine and pyrimidine nucleotide metabolism in Mollicutes [PDF]

open access: yesGenetics and Molecular Biology, 2007
Several mollicute genome projects are underway, offering unique opportunities to study genes and metabolic pathways on a genome-wide scale. Here, we have analyzed the conservation and diversity of purine and pyrimidine metabolism in mycoplasmas. An evaluation of discrepancies between genomic analysis and enzymatic data revealed interesting aspects ...
Bizarro, Cristiano Valim   +1 more
openaire   +4 more sources

Nucleotides: Structure and Properties [PDF]

open access: yes, 2005
Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core   +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

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   +1 more source

Ribose supplementation alone or with elevated creatine does not preserve high energy nucleotides or cardiac function in the failing mouse heart [PDF]

open access: yes, 2013
Background: Reduced levels of creatine and total adenine nucleotides (sum of ATP, ADP and AMP) are hallmarks of chronic heart failure and restoring these pools is predicted to be beneficial by maintaining the diseased heart in a more favourable energy ...
Aksentijevic, Dunja   +6 more
core   +2 more sources

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

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

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