Results 61 to 70 of about 669,704 (210)

Initial steps in pyrimidine synthesis in Ehrlich ascites carcinoma in vitro. 1. Factors affecting the incorporation of 14C-bicarbonate into carbon 2 of the uracil ring of the acid-soluble nucleotides of intact cells.

open access: yesJournal of Biological Chemistry, 1965
SUMMARY During short incubation in vitro of intact Ehrlich ascites cells, 14C-bicarbonate was incorporat,ed into carbon atom 2 of the uracil ring derived from intracellular, acid-soluble uridine nu- cleotides.
S. Hager, M. Jones
semanticscholar   +1 more source

Uracil in duplex DNA is a substrate for the nucleotide incision repair pathway in human cells [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Significance Hydrolytic deamination of cytosine to uracil generates a highly mutagenic DNA base lesion and is considered one of the major sources of spontaneous mutation in living organisms. We report that the major human apurinic/apyrimidinic (AP) endonuclease, APE1, is a deoxyuridine endonuclease and can remove uracil residues in ...
Prorok, P.   +7 more
openaire   +3 more sources

RNA degradomics and proteomics reveal the mechanism of dsProsβ1‐mediated proteasome targeting in Psylliodes chrysocephala

open access: yesPest Management Science, EarlyView.
RNA degradomics revealed dsProsβ1‐derived siRNA‐mediated mRNA cleavage events, mainly at uracil‐guanine and adenine‐adenine pairs. Proteasome inhibition via dsProsβ1 increased mitochondrial and cytoskeletal proteins while reducing translation‐related and mRNA‐binding proteins.
Doga Cedden   +3 more
wiley   +1 more source

The continuing significance of chiral agrochemicals

open access: yesPest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley   +1 more source

Genetic Tools in the Nakaseomyces clade for Evolutionary Comparisons of Signal Transduction Pathways

open access: yesYeast, EarlyView.
ABSTRACT The genus Nakaseomyces provides four species that are closely related but have different characteristics. For example, N. glabratus (formerly known as Candida glabrata) is a common human pathogen, whereas N. bracarensis and N. nivariensis have been isolated in clinical settings but are not common human pathogens. N.
Maria Abraham   +2 more
wiley   +1 more source

Comparative Analysis of Stress Adaptation in the Yeast Microbiome of Cactus

open access: yesYeast, EarlyView.
Yeasts and related fungi isolated from cacti or nearby non‐cactus plants were characterized phenotypically and genomically, revealing differences that hint at modes of adaptation to the cactus host. ABSTRACT Together with other fungi, yeasts make up a significant component of the plant microbiome. As the planet warms, cacti expand their range.
Alya N. Hussain   +2 more
wiley   +1 more source

Analysis of Z64 genetic code network [PDF]

open access: yesNetwork Biology
The genetic code is the set of rules defining how the sequence of nucleotides in DNA or RNA determines the specific amino acid sequence in the synthesis of protein.
Adil Akhtar, Nasrin Irshad Hussain
doaj  

Homologous recombination mutants cause differing lethality between h− and h+ Schizosaccharomyces pombe strains due to mat1 heterochromatin

open access: yesThe FEBS Journal, EarlyView.
Homologous recombination (HR) in Schizosaccharomyces pombe is essential when mating‐type switching–induced double‐strand breaks (DSBs) form at the mat1 locus. In h90 and h− strains, efficient mat1 DSB formation renders HR indispensable unless suppressors block these breaks.
Peter Kolesar   +3 more
wiley   +1 more source

A hybrid stochastic model of folate-mediated one-carbon metabolism: Effect of the common C677T MTHFR variant on de novo thymidylate biosynthesis

open access: yesScientific Reports, 2017
Folate-mediated one-carbon metabolism (FOCM) is an interconnected network of metabolic pathways, including those required for the de novo synthesis of dTMP and purine nucleotides and for remethylation of homocysteine to methionine. Mouse models of folate-
Karla Misselbeck   +5 more
doaj   +1 more source

Transgenic selection and underlying mechanisms in apicomplexan parasites

open access: yesThe FEBS Journal, EarlyView.
Transgenic selection markers have driven genetic engineering in apicomplexans, enabling precise, iterative experiments. This review discusses mechanistic details of drug selection markers, strategies for marker recycling, and practical considerations for several clinically relevant parasites.
Swaroop Peddiraju   +2 more
wiley   +1 more source

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