Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Keyword
- Publication
- Publication Type
Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur
Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur
Faculty Publications, Chemistry
Type II restriction enzymes are homodimeric systems that bind four to eight base pair palindromic recognition sequences of DNA and catalyze metal ion-dependent phosphodiester cleavage. While Mg(II) is required for cleavage in these enzymes, in some systems Ca(II) promotes avid substrate binding and sequence discrimination. These properties make them useful model systems for understanding the roles of alkaline earth metal ions in nucleic acid processing. We have previously shown that two Ca(II) ions stimulate DNA binding by PvuII endonuclease and that the trivalent lanthanide ions Tb(III) and Eu(III) support subnanomolar DNA binding in this system. Here we capitalize on this …
Relation Between Increased Transmision In Xas And Increase In Abrikosov Vortices As T→Tc, J. Chigvinadze, G. Mamniashvilli, Juana Acrivos
Relation Between Increased Transmision In Xas And Increase In Abrikosov Vortices As T→Tc, J. Chigvinadze, G. Mamniashvilli, Juana Acrivos
Faculty Publications, Chemistry
The increased transmission, observed in the EXAFS region of their X-ray absorption spectra, as cuprate materials go through the superconducting transition temperature Tc is correlated with a critical increase in Abrikosov Vortex expulsion in zero magnetic field as the temperature T →Tc.
Theory And Experiments: Scf Calculations/Xrd/Enhanced Scattering/Pld In Ybco7-D Nano Film, H. Sahibudeen, M. Navacerrada, Juana Acrivos
Theory And Experiments: Scf Calculations/Xrd/Enhanced Scattering/Pld In Ybco7-D Nano Film, H. Sahibudeen, M. Navacerrada, Juana Acrivos
Faculty Publications, Chemistry
X-Ray diffraction above and below the transition temperature to superconductivity Tc are correlated using SCF-MOLECOLE computations that describe the CuO2 layer (fig. 1) in the field of 9 unit cells of YBa2Cu3O7. The MO symmetry, charge transfer and OAOB bond mobility are compared to the data using the highest occupiedmolecular orbitals, MO-i (HOMO=MO0) bases to construct the layer tight-binding extended state.
Self Consistent Field, Scf Homo And Lumo For Cuo2 Layer In Cuprates, H. Sahibudeen, Juana Acrivos
Self Consistent Field, Scf Homo And Lumo For Cuo2 Layer In Cuprates, H. Sahibudeen, Juana Acrivos
Faculty Publications, Chemistry
Before photoemission studies [1995] measured the symmetry of layer cuprate conduction states along the (xy),(-x-y) direction of the unit cell, a SCF analysis [1993] gave the symmetry of the HOMO & LUMO showing O:2pxy-O:2pxy charge de-localization for the conducting CuO2 layer in a superconducting cuprate (T'-Nd2CuO4 in the crystal field of point charges of nearest neighbor unit cells). The predictive power of MO calculations are applied now to understand the concept of valence and periodic lattice distortions commonly found in these solids [2003].
Enhanced Resonant Soft X-Ray Scattering Yba2cu3o7-X 50 Nm Thin Films On Bycristalline Substrates, M. Navacerrada, H. Sahibudeen, Jeffrey Kortright, Juana Acrivos
Enhanced Resonant Soft X-Ray Scattering Yba2cu3o7-X 50 Nm Thin Films On Bycristalline Substrates, M. Navacerrada, H. Sahibudeen, Jeffrey Kortright, Juana Acrivos
Faculty Publications, Chemistry
No abstract provided.
Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur
Lanthanide Spectroscopic Studies Of The Dinuclear And Mg(Ii)-Dependent Pvuii Restriction Endonuclease, Gilles Muller, L. M. Bowen, J. P. Riehl, C. M. Dupureur
Gilles Muller
Type II restriction enzymes are homodimeric systems that bind four to eight base pair palindromic recognition sequences of DNA and catalyze metal ion-dependent phosphodiester cleavage. While Mg(II) is required for cleavage in these enzymes, in some systems Ca(II) promotes avid substrate binding and sequence discrimination. These properties make them useful model systems for understanding the roles of alkaline earth metal ions in nucleic acid processing. We have previously shown that two Ca(II) ions stimulate DNA binding by PvuII endonuclease and that the trivalent lanthanide ions Tb(III) and Eu(III) support subnanomolar DNA binding in this system. Here we capitalize on this …