Results 11 to 20 of about 79,534 (186)

ADP-Ribosylation of Cytidine: A Novel Nucleic Acid Modification Reversed by NADAR Hydrolases [PDF]

open access: yesToxins
ADP-ribosylation of nucleic acids is a modification found in both eukaryotes and bacteria, where it contributes to genome maintenance but can also serve as a toxic mechanism used by bacterial toxins to disrupt essential cellular processes.
Petra Mikolčević   +6 more
doaj   +2 more sources

Integrated amplification of NADPH-regenerating modules enhances cytidine biosynthesis in Escherichia coli [PDF]

open access: yesSynthetic and Systems Biotechnology
In Escherichia coli, cofactor imbalance serves as a crucial limiting factor in cytidine biosynthesis, with nicotinamide adenine dinucleotide phosphate (NADPH) insufficiency representing the principal metabolic barrier.
Lu Liu   +7 more
doaj   +2 more sources

Promoting cytidine biosynthesis by modulating pyrimidine metabolism and carbon metabolic regulatory networks in Bacillus subtilis [PDF]

open access: yesMicrobial Cell Factories
Background The modification of single or multiple genes via metabolic engineering can lead to the dysregulation of central metabolism and affect bacterial growth and metabolite accumulation.
Xiangjun Zhang   +8 more
doaj   +2 more sources

Double-strand break-free and transgene-free genome editing in the microalga Nannochloropsis oceanica using removable vectors containing the CRISPR base editing system [PDF]

open access: yesScientific Reports
The accumulation of lipids by algae makes them attractive for carbon-neutral fuel production; however, the industrial-scale production of algal lipids has yet to be achieved.
Keishi Moroi   +2 more
doaj   +2 more sources

Biological functions and clinical implications of the CMPK2 across multisystemic diseases [PDF]

open access: yesCell & Bioscience
Cytidine/Uridine monophosphate kinase 2 (CMPK2) is a crucial enzyme responsible for the phosphorylation of nucleotides, specifically converting cytidine monophosphate (CMP) and uridine monophosphate (UMP) into their respective diphosphates, known as ...
Jia Li   +6 more
doaj   +2 more sources

Determination of total potentially available nucleosides in bovine milk [PDF]

open access: yes, 2010
Bovine colostrum and milk samples were collected from two herds over the course of the first month post-partum, pooled for each herd by stage of lactation and total potentially available nucleosides were determined.
Gill, Brendon D.   +2 more
core   +2 more sources

Programmable base editing of zebrafish genome using a modified CRISPR-Cas9 system. [PDF]

open access: yes, 2017
Precise genetic modifications in model animals are essential for biomedical research. Here, we report a programmable "base editing" system to induce precise base conversion with high efficiency in zebrafish. Using cytidine deaminase fused to Cas9 nickase,
Bai, Haipeng   +7 more
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

Transcription as a Threat to Genome Integrity [PDF]

open access: yes, 2016
Genomes undergo different types of sporadic alterations, including DNA damage, point mutations, and genome rearrangements, that constitute the basis for evolution.
Aguilera López, Andrés   +1 more
core   +1 more source

The cyclin-dependent kinase inhibitor p57(Kip2) is epigenetically regulated in carboplatin resistance and results in collateral sensitivity to the CDK inhibitor seliciclib in ovarian cancer [PDF]

open access: yes, 2012
Carboplatin remains a first-line agent in the management of epithelial ovarian cancer (EOC). Unfortunately, platinum-resistant disease ultimately occurs in most patients.
A Bali   +27 more
core   +1 more source

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