Results 31 to 40 of about 139,089 (266)

Effects of the pyrE deletion mutant from Bacillus thuringiensis on gut microbiota and immune response of Spodoptera exigua

Frontiers in Microbiology, 2023
The gut microbiota is essential for the growth and development of insects, and the intestinal immune system plays a critical role in regulating the homeostasis of intestinal microorganisms and their interactions with pathogenic bacteria.
Dan Zhao, Han Wu, Han Wu, Yazi Li, Qian Wang, Yujie Ji, Xiaochang Guo, Wei Guo, Wei Guo   +8 more
doaj   +1 more source

Uracil restores susceptibility of methicillin-resistant Staphylococcus aureus to aminoglycosides through metabolic reprogramming

Frontiers in Pharmacology, 2023
Background: Methicillin-resistant Staphylococcus aureus (MRSA) has now become a major nosocomial pathogen bacteria and resistant to many antibiotics. Therefore, Development of novel approaches to combat the disease is especially important.
Lvyuan Fan, Zhiyu Pan, Xu Liao, Yilin Zhong, Juan Guo, Rui Pang, Xinhai Chen, Guozhu Ye, Yubin Su   +8 more
doaj   +1 more source

Uracil-Induced Down-Regulation of the Yeast Uracil Permease [PDF]

Journal of Bacteriology, 1999
ABSTRACT In Saccharomyces cerevisiae the FUR4 -encoded uracil permease catalyzes the first step of the pyrimidine salvage pathway. The availability of uracil has a negative regulatory effect upon its own transport.
K, Séron, M O, Blondel, R, Haguenauer-Tsapis, C, Volland   +3 more
openaire   +2 more sources

Monotriazoles Derived from Uracil and Thymine as Corrosion Inhibitor for API 5L X52 Steel in 1 M H2SO4

International Journal of Electrochemical Science, 2018
In this study, the corrosion inhibition of monotriazoles derived from uracil and thymine was studied with electrochemical impedance spectroscopy (EIS) on API 5L X52 steel in 1 M H2SO4.
A. Espinoza-Vázquez, F.J. Rodríguez-Gómez, Guillermo E. Negrón-Silva, D. Angeles-Beltrán, R. González-Olvera   +4 more
doaj   +1 more source

The role of Duschinsky rotation in intersystem crossing: A case study of uracil [PDF]

Journal of the Serbian Chemical Society, 2011
The intersystem crossing rate for the transition between the lowest excited singlet and triplet electronic states of uracil was studied by means of ab initio methods.
Etinski Mihajlo
doaj   +1 more source

Synthesis, Herbicidal Activity, Mode of Action, and In Silico Analysis of Novel Pyrido[2,3-d]pyrimidine Compounds

Molecules, 2023
Natural products are a main source of new chemical entities for use in drug and pesticide discovery. In order to discover lead compounds with high herbicidal activity, a series of new pyrido[2,3-d] pyrimidine derivatives were designed and synthesized ...
Lijing Min, Wei Liang, Joanna Bajsa-Hirschel, Peng Ye, Qiao Wang, Xinpeng Sun, Charles L. Cantrell, Liang Han, Nabo Sun, Stephen O. Duke, Xinghai Liu   +10 more
doaj   +1 more source

Low-energy electron collisions with gas-phase uracil [PDF]

, 2006
We have studied gas-phase collisions between slow electrons and uracil molecules with a view to understanding the resonance structure of the scattering cross section.
McKoy, Vincent, Winstead, Carl
core   +1 more source

Excited States of Proton-bound DNA/RNA Base Homo-dimers: Pyrimidines [PDF]

, 2014
We are presenting the electronic photo fragment spectra of the protonated pyrimidine DNA bases homo-dimers. Only the thymine dimer exhibits a well structured vibrational progression, while protonated monomer shows broad vibrational bands. This shows that
Adesokan A. a, Ahlrichs R., Alata I., Alata I., Alata I., Alata I., Andersen L. H., Bakker J. M., Berdakin M., Berdakin M., Bouchoux G., Boyarkin O. V., Brøndsted Nielsen S., Chakraborty S., Christophe Jouvet, Claude Dedonder-Lardeux, Delchev V. B., Dopfer O., Duncan M. A., Fonseca Guerra C., Fridgen T. D., Féraud G., Féraud G., Gehring K., Grégoire G., Gustavo A. Pino, Géraldine Féraud, Góra R. W., Hattig C., Kamrath M. Z., Kamrath M. Z., Kang H., Kang H., Kang H., Kleinermanns K., Le Barbu-Debus K., Lepere V., Lieblein A. L., Marian C., Matias Berdakin, Mercier S. R., Patzer A., Pino G. A., Rajabi K., Saigusa H., Salpin J.-Y., Schermann J.-P., Schirmer J., Scuderi D., Scuderi D., Sobolewski A. L., Solcà N., Wang X. B., Yang B., Yang B., Škríba A.   +55 more
core   +5 more sources

Ultraviolet relaxation dynamics in uracil: Time-resolved photoion yield studies using a laser-based thermal desorption source [PDF]

, 2018
Wavelength-dependent measurements of the RNA base uracil, undertaken with nanosecond ultraviolet laser pulses, have previously identified a fragment at m/z = 84 (corresponding to the C3H4N2O+ ion) at excitation wavelengths ≤232 nm.
Bockova, Jana, Crane, Stuart W., De Camillis, Simone, Eden, Samuel, Ghafur, Omair, Greenwood, Jason B., Rebelo, Andre, Ryszka, Michal, Saalbach, Lisa, Townsend, Dave   +9 more
core   +2 more sources

Rewriting Human History and Empowering Indigenous Communities with Genome Editing Tools. [PDF]

, 2020
Appropriate empirical-based evidence and detailed theoretical considerations should be used for evolutionary explanations of phenotypic variation observed in the field of human population genetics (especially Indigenous populations). Investigators within
Fox, Keolu, Komor, Alexis C, Rallapalli, Kartik Lakshmi   +2 more
core   +2 more sources