Results 101 to 110 of about 30,194 (292)

Uropathogenic Escherichia coli preferentially utilize metabolites in urine for nucleotide biosynthesis through salvage pathways

open access: yesInternational Journal of Medical Microbiology, 2018
Growth in urinary tract depends on the ability of uropathogenic E. coli to adjust metabolism in response to available nutrients, especially to synthesize metabolites that are present in urinary tract with limited concentrations. In this study, a genome-wide assay was applied and identified five nucleotide biosynthetic genes purA, guaAB and carAB that ...
Jiale Ma   +5 more
openaire   +3 more sources

LEDGF Binds H3R17me2a Promoting De Novo Nucleotide Biosynthesis in SETD2 Mutant Clear Cell Renal Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
In SETD2‐mutant ccRCC, the original LEDGF recognition of the H3K36me3 regulatory axis no longer exists. LEDGF interacts with CARM1‐dependent H3R17me2a regulating the transcription of key enzymes in the de novo synthesis pathway. The abnormally elevated LEDGF leads to the accumulation of purine nucleotides in SETD2‐mutant ccRCC, thereby satisfying the ...
Yuwei Zhang   +11 more
wiley   +1 more source

Allopurinol Disrupts Purine Metabolism to Increase Damage in Experimental Colitis

open access: yesCells
Inflammatory bowel disease (IBD) is marked by a state of chronic energy deficiency that limits gut tissue wound healing. This energy shortfall is partially due to microbiota dysbiosis, resulting in the loss of microbiota-derived metabolites, which the ...
Corey S. Worledge   +5 more
doaj   +1 more source

Combined epigenetic and metabolic treatments overcome differentiation blockade in acute myeloid leukemia

open access: yesiScience, 2021
Summary: A hallmark of acute myeloid leukemia (AML) is the inability of self-renewing malignant cells to mature into a non-dividing terminally differentiated state.
Barry M. Zee   +21 more
doaj  

Functional characterization of human equilibrative nucleoside transporter 1

open access: yesProtein & Cell, 2016
Equilibrative nucleoside transporters (ENTs), which facilitate cross-membrane transport of nucleosides and nucleoside-derived drugs, play an important role in the salvage pathways of nucleotide synthesis, cancer chemotherapy, and treatment for virus ...
Weiyun Huang   +3 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

From Code to Life: The AI‐Driven Revolution in Genome Editing

open access: yesAdvanced Science, EarlyView.
This review explores AI‐driven advancements in genome editing, focusing on CRISPR optimization, enhanced targeting precision, reduced off‐target effects, and novel tool design. It addresses ethical challenges, data biases, and highlights future prospects in precision medicine, agriculture, and synthetic biology.
Zhidong Li   +10 more
wiley   +1 more source

Nicotinamide riboside kinase structures reveal new pathways to NAD+.

open access: yesPLoS Biology, 2007
The eukaryotic nicotinamide riboside kinase (Nrk) pathway, which is induced in response to nerve damage and promotes replicative life span in yeast, converts nicotinamide riboside to nicotinamide adenine dinucleotide (NAD+) by phosphorylation and ...
Wolfram Tempel   +10 more
doaj   +1 more source

Lethal Mutagenesis of Poliovirus Mediated by a Mutagenic Pyrimidine Analogue [PDF]

open access: yes, 2007
Lethal mutagenesis is the mechanism of action of ribavirin against poliovirus (PV) and numerous other RNA viruses. However, there is still considerable debate regarding the mechanism of action of ribavirin against a variety of RNA viruses.
Brown, Daniel M.   +11 more
core   +4 more sources

Metabolic Stress‐Induced Choline Kinase α (CHKA) Activation in Endothelial Subpopulation Contributes to Diabetes‐Associated Microvascular Dysfunction

open access: yesAdvanced Science, EarlyView.
This study uncovers CHKA as a pivotal driver of vascular dysfunction in diabetic retinopathy and highlights its role in endothelial dysfunction through NAD⁺‐SIRT1‐Notch signaling. Single‐cell and functional analyses, combined with clinical and genetic validation, suggest CHKA as a promising therapeutic target for the prevention and treatment of ...
Ling Ren   +11 more
wiley   +1 more source

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