Results 11 to 20 of about 137,731 (206)

Density Functional Theory for the Photoionization Dynamics of Uracil [PDF]

, 2007
Photoionization dynamics of the RNA base Uracil is studied in the framework of Density Functional Theory (DFT). The photoionization calculations take advantage of a newly developed parallel version of a multicentric approach to the calculation of the electronic continuum spectrum which uses a set of B-spline radial basis functions and a Kohn-Sham ...
Altmann S. L., D. Toffoli, F. A. Gianturco, Massey H. S. W., P. Decleva, Parr R. G., R. R. Lucchese, Slater J. C., Taylor J. R.   +8 more
arxiv   +3 more sources

Low energy electron scattering from DNA and RNA bases: shape resonances and radiation damage [PDF]

, 2005
Calculations are carried out to determine elastic scattering cross sections and resonance energies for low energy electron impact on uracil and on each of the DNA bases (thymine, cytosine, adenine, guanine), for isolated molecules in their equilibrium geometry. Our calculations are compared with available theory and experiment.
Blackburn G. M., Chris H. Greene, Levesque P., Parr R. G., Stefano Tonzani   +4 more
arxiv   +3 more sources

Cytosine-to-Uracil Deamination by SssI DNA Methyltransferase [PDF]

, 2013
The prokaryotic DNA(cytosine-5)methyltransferase M.SssI shares the specificity of eukaryotic DNA methyltransferases (CG) and is an important model and experimental tool in the study of eukaryotic DNA methylation.
A Beletskii, A Jeltsch, AN Sharath, Antal Kiss, AS Yang, B Bandaru, B Bandaru, B Chaikind, BM Hall, BTF van der Gun, DM Woodcock, EA Raleigh, EU Selker, EV Koudan, G Pósfai, GL Xu, H Gowher, I Stier, Ildikó Stier, J Sambrook, JC Shen, JC Shen, JC Shen, JM Zingg, JM Zingg, KM Reinisch, LA Frederico, LM Guzman, M Frommer, M Wyszynski, Martin G. Marinus, MH Sibley, P Rathert, P Renbaum, PA Waite-Rees, PM Warnecke, R Métivier, R Shapiro, RJ Roberts, RY-H Wang, S Kumar, SE Luria, T Durfee, TA Kunkel, UT Sankpal, WA Rosche, X Cheng, X Zhang   +47 more
core   +9 more sources

Mechanisms of base selection by human single-stranded selective monofunctional uracil-DNA glycosylase [PDF]

, 2009
hSMUG1 (human single-stranded selective monofunctional uracil-DNA glyscosylase) is one of three glycosylases encoded within a small region of human chromosome 12. Those three glycosylases, UNG (uracil-DNA glycosylase), TDG (thymine-DNA glyscosylase), and
Agus Darwanto, Akbari, Alcantara, Barrett, Bennett, Bethod, Boorstein, Bryantsev, Cerny, Clough, Cui, Cybulski, Daniel K. Rogstad, Di Noia, Di Noia, Dunning, Fujimoto, Gait, Guerniou, Hansch, Haushalter, Hobza, Jacob A. Theruvathu, James L. Sowers, Jang, Kavli, Kelly, Kendall, Krokan, Krokan, La Francois, Lawrence C. Sowers, Liu, Marten, Masaoka, Matsubara, Matsubara, Matsudaira, Mendes, Morgan, Neddermann, Nilsen, Nilsen, Pearl, Perezjorda, Privat, Rao, Rogstad, SantaLucia, Sibghat-Ullah, Slupphaug, Sousa, Sowers, Sowers, Sugiyama, Tannor, Tod Pascal, Waters, Wibley, William Goddard, Zhao, Zhao, Zhao, Zielenkiewicz   +63 more
core   +3 more sources

Threshold behavior in metastable dissociation of multi-photon ionized thymine and uracil [PDF]

, 2017
Microsecond-timescale HNCO loss has been observed from single-color multi-photon ionized pyrimidine nucleobases in the gas phase. Photon energy thresholds for the metastable channels have been measured at 5.55 ± 0.02 eV for thymine and 5.57 ± 0.02 eV for
da Fonseca Cunha, T., Dampc, M., Eden, S., Lalande, M., Limão-Vieira, P., Mason, N.J., Pandey, R., Poully, J.C., Ryszka, M.   +8 more
core   +3 more sources

Photoprotecting uracil by coupling with lossy nanocavities [PDF]

J. Phys. Chem. Lett. 11, 8810-8818 (2020), 2020
We analyze how the photorelaxation dynamics of a molecule can be controlled by modifying its electromagnetic environment using a nanocavity mode. In particular, we consider the photorelaxation of the RNA nucleobase uracil, which is the natural mechanism to prevent photodamage.
arxiv   +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   +4 more sources

Structure of isolated biomolecules by electron diffraction-laser desorption: uracil and guanine [PDF]

, 2009
We report the structure of isolated biomolecules, uracil and guanine, demonstrating the capability of a newly developed electron diffraction apparatus augmented with surface-assisted IR laser desorption.
Gahlmann, Andreas, Park, Sang Tae, Zewail, Ahmed H.   +2 more
core   +1 more source

Architecturally diverse proteins converge on an analogous mechanism to inactivate Uracil-DNA glycosylase [PDF]

, 2013
Uracil-DNA glycosylase (UDG) compromises the replication strategies of diverse viruses from unrelated lineages. Virally encoded proteins therefore exist to limit, inhibit or target UDG activity for proteolysis.
A. R. Cole, Acharya, Barrett, Berkner, Broennimann, dos Reis, Duncan, Emsley, Freitag, G. Baltulionis, Haushalter, Hennessy, Huang, Jern, K. Ryzhenkova, Kabsch, Katz, Kiljunen, Kleywegt, Koulis, Martomo, McCoy, Newman, P. Hornyak, Pearl, Perez-Lago, Putnam, Putnam, R. Savva, S. Ofer, Savva, Savva, Savva, Schorman, Sharp, Takahashi, Tye, Warner, Warren, Winn   +39 more
core   +1 more source

The Escherichia coli RutR transcription factor binds at targets within genes as well as intergenic regions. [PDF]

, 2008
The Escherichia coli RutR protein is the master regulator of genes involved in pyrimidine catabolism. Here we have used chromatin immunoprecipitation in combination with DNA microarrays to measure the binding of RutR across the chromosome of ...
Akira Ishihama, Baba, Babu, Babu, Browning, Cho, Datsenko, David C. Grainger, Efromovich, Grainger, Grainger, Grainger, Grainger, Hiard, Li, Loh, Martinez-Antonio, Pavesi, Robison, Shimada, Stephen J. W. Busby, Tomohiro Shimada, Wade, Wade, Wei   +24 more
core   +5 more sources