Results 1 to 10 of about 77,275 (204)

Absorption of pyrimidines, purines, and nucleosides by Co, Ni, Cu and Fe /III-montmorillonite /clay-organic studies XIII/ [PDF]

open access: yes
Absorption of pyrimidines, purines, and nucleosides by copper, nickel, cobalt, and iron ...
Brindley, G. W.   +2 more
core   +1 more source

Purine and pyrimidine bases as growth substances for lactic acid bacteria [PDF]

open access: yes, 1941
In 1936 Richardson (1) showed that uracil was essential for the anaerobic growth of Staphylococcus aureus, but not for aerobic growth of the same organism.
Mitchell, Herschel K., Snell, Esmond E.
core  

Purine and carbohydrate availability drive Enterococcus faecalis fitness during wound and urinary tract infections

open access: yesmBio
Enterococcus faecalis is commonly isolated from a variety of wound types. Despite its prevalence, the pathogenic mechanisms of E. faecalis during wound infection are poorly understood. Using a mouse wound infection model, we performed in vivo E. faecalis
Casandra Ai Zhu Tan   +11 more
doaj   +1 more source

E. coli genetically modified for purine nucleobase release promotes butyrate generation and colonic wound healing during DSS insult

open access: yesGut Microbes
The gut microbiota transforms energy stored as undigestible carbohydrates into a remarkable number of metabolites that fuel intestinal bacterial communities and the host tissue.
J. Scott Lee   +7 more
doaj   +1 more source

From quantum groups to genetic mutations

open access: yes, 2003
In the framework of the crystal basis model of the genetic code, where each codon is assigned to an irreducible representation of $U_{q \to 0}(sl(2) \oplus sl(2))$, single base mutation matrices are introduced.
Sciarrino, Antonino
core  

Editorial: The role of astrocyte signalling pathways in ageing-induced neurodegenerative pathologies

open access: yesFrontiers in Physiology, 2022
Nady Braidy   +7 more
doaj   +1 more source

Purine and pyrimidine synthesis differently affect the strength of the inoculum effect for aminoglycoside and β-lactam antibiotics

open access: yesMicrobiology Spectrum
The inoculum effect has been observed for nearly all antibiotics and bacterial species. However, explanations accounting for its occurrence and strength are lacking.
Daniella M. Hernandez   +17 more
doaj   +1 more source

Lie Markov models with purine/pyrimidine symmetry [PDF]

open access: yes, 2013
Continuous-time Markov chains are a standard tool in phylogenetic inference. If homogeneity is assumed, the chain is formulated by specifying time-independent rates of substitutions between states in the chain.
Fernández-Sánchez, Jesús   +3 more
core   +2 more sources

The Characterization of the Purine Nucleoside Phosphorylase from Agaricus bisporus and Its Potential Application in Reducing Purine Content in Beer

open access: yesJournal of Fungi
Beer, the most popular alcoholic beverage, poses health risks for individuals with gout and hyperuricemia due to its high purine content. Herein, we identified a novel purine nucleoside phosphorylase (AbPNP) from the edible mushroom Agaricus bisporus and
Jun Liu, Jian Lu
doaj   +1 more source

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