Results 71 to 80 of about 285,864 (400)

Stress-induced inactivation of the Staphylococcus aureus purine biosynthesis repressor leads to hypervirulence

open access: yesNature Communications, 2019
Staphylococcus aureus is a significant cause of human infection. Here, we demonstrate that mutations in the transcriptional repressor of purine biosynthesis, purR, enhance the pathogenic potential of S. aureus.
Mariya I. Goncheva   +11 more
semanticscholar   +1 more source

Electron transfer driven decomposition of adenine and selected analogs as probed by experimental and theoretical methods [PDF]

open access: yes, 2018
We report on a combined experimental and theoretical study of electron transfer induced decomposition of adenine and a selection of analogue molecules in collisions with potassium atoms (K).
Bacchus-Montabonel, M.-C.   +6 more
core   +3 more sources

Elucidating prognostic significance of purine metabolism in colorectal cancer through integrating data from transcriptomic, immunohistochemical, and single‐cell RNA sequencing analysis

open access: yesMolecular Oncology, EarlyView.
Low expression of five purine metabolism‐related genes (ADSL, APRT, ADCY3, NME3, NME6) was correlated with poor survival in colorectal cancer. Immunohistochemistry analysis showed that low NME3 (early stage) and low ADSL/NME6 (late stage) levels were associated with high risk.
Sungyeon Kim   +8 more
wiley   +1 more source

Vanishing of self-extensions over symmetric algebras [PDF]

open access: yes, 2013
We study self-extensions of modules over symmetric artin algebras. We show that non-projective modules with eventually vanishing self-extensions must lie in AR components of stable type $\mathbb{Z}A_{\infty}$. Moreover, the degree of the highest non-vanishing self-extension of these modules is determined by their quasilength.
arxiv   +1 more source

Serine, but not glycine, supports one-carbon metabolism and proliferation of cancer cells [PDF]

open access: yes, 2014
Previous work has shown that some cancer cells are highly dependent on serine/glycine uptake for proliferation. Although serine and glycine can be interconverted and either might be used for nucleotide synthesis and one-carbon metabolism, we show that ...
Labuschagne, Christiaan F.   +4 more
core   +2 more sources

Enhanced discovery of bacterial laccase‐like multicopper oxidase through computer simulation and metagenomic analysis of industrial wastewater

open access: yesFEBS Open Bio, EarlyView.
We obtained potential bacterial laccase‐like multicopper oxidase (LMCO) sequences through metagenomic sequencing. All sequences exhibited significant differences from known LMCOs in databases. To select the most promising candidates, we performed structure prediction and molecular docking using alphafold2, metal3d and rosetta.
Ting Cui   +5 more
wiley   +1 more source

Gene Algebra from a Genetic Code Algebraic Structure [PDF]

open access: yesJournal of Mathematical Biology. 2005 Oct;51(4):431-57., 2004
The biological distinction between the base positions in the codon, the chemical types of bases (purine and pyrimidine) and their hydrogen bond number have been the most relevant codon properties used in the genetic code analysis. Now, these properties have allowed us to build a Genetic Code ring isomorphic to the ring (Z64, +,*) of the integer module ...
arxiv   +1 more source

5-Aminoimidazole-4-carboxamide-1-beta-D-ribofuranosyl 5'-Monophosphate (AICAR), a Highly Conserved Purine Intermediate with Multiple Effects

open access: yesMetabolites, 2012
AICAR (5-Aminoimidazole-4-carboxamide-1-beta-D-ribofuranosyl 5'-monophosphate) is a natural metabolic intermediate of purine biosynthesis that is present in all organisms.
Bertrand Daignan-Fornier, Benoît Pinson
doaj   +1 more source

A study of the effects of exercise on the urinary metabolome using normalisation to individual metabolic output [PDF]

open access: yes, 2015
Aerobic exercise, in spite of its multi-organ benefit and potent effect on the metabolome, has yet to be investigated comprehensively via an untargeted metabolomics technology.
Anthony, Nahoum   +5 more
core   +2 more sources

De novo synthesis of serine and glycine fuels purine nucleotide biosynthesis in human lung cancer tissues

open access: yesJournal of Biological Chemistry, 2019
Nucleotide synthesis is essential to proliferating cells, but the preferred precursors for de novo biosynthesis are not defined in human cancer tissues.
T. Fan   +13 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy