Search Results - "Wierzchowski, J."

Non-typical nucleoside analogs as fluorescent and fluorogenic indicators of purine-nucleoside phosphorylase activity in biological samples by Stachelska-Wierzchowska, A., Wierzchowski, J.

“…Several novel non-typical nucleoside analogs were examined as potential fluorescent indicators of purine-nucleoside phosphorylase (PNP) activity in human…”
Get full text

Calculation of Free Energies and Chemical Potentials for Gas Hydrates Using Monte Carlo Simulations by Wierzchowski, S. J, Monson, P. A

“…We describe a method for calculating free energies and chemical potentials for molecular models of gas hydrate systems using Monte Carlo simulations. The…”
Get full text

Calculating the Phase Behavior of Gas-Hydrate-Forming Systems from Molecular Models by Wierzchowski, S. J, Monson, P. A

“…We describe a calculation of the phase behavior of the methane−water system, including the structure-I hydrate phase, starting from a model of the…”
Get full text

Trimer Based Polarization as a Multibody Molecular Model. Application to Hydrogen Fluoride by Wierzchowski, Scott J, Kofke, David A

“…A molecular modeling approach is introduced as a way to treat multibody (more than two molecules) contributions to the intermolecular potential. There are two…”
Get full text

Fugacity Coefficients of Saturated Water from Molecular Simulation by Wierzchowski, Scott J, Kofke, David A

“…We apply isothermal−isobaric Monte Carlo molecular simulation to measure the vapor-phase fugacity coefficients and equation of state of three fixed-charge…”
Get full text

Liquid-Phase Activity Coefficients for Saturated HF/H2O Mixtures with Vapor-Phase Nonidealities Described by Molecular Simulation by Wierzchowski, Scott J, Kofke, David A

“…Isothermal−isobaric Monte Carlo molecular simulations are performed to estimate the vapor-phase fugacity coefficients of hydrogen fluoride and water in their…”
Get full text

Kinetics of C. Elegans DcpS Cap Hydrolysis Studied by Fluorescence Spectroscopy by Wierzchowski, J., Pietrzak, M., Stepinski, J., Jemielity, J., Kalek, M., Bojarska, E., Jankowska-Anyszka, M., Davis, R. E., Darzynkiewicz, E.

“…DcpS (scavenger decapping enzyme) from nematode C. elegans readily hydrolyzes both monomethyl- and trimethylguanosine cap analogues. The reaction was followed…”
Get full text

GIS-Generated, Expert-Based Models for Identifying Wildlife Habitat Linkages and Planning Mitigation Passages by Clevenger, Anthony P., Wierzchowski, Jack, Chruszcz, Bryan, Gunson, Kari

“…We developed three black bear (Ursus americanus) habitat models in the context of a geographic information system to identify linkage areas across a major…”
Get full text

Fugacity Coefficients of Saturated Water from Molecular Simulation by Wierzchowski, S. J, Kofke, David A

Get full text

Grizzly bear response to human development and activities in the Bow River Watershed, Alberta, Canada by Gibeau, Michael L, Clevenger, Anthony P, Herrero, Stephen, Wierzchowski, Jack

“…Few studies have reported the effects of multiple human activities on grizzly bears, Ursus arctos. We document the degree of grizzly bear response to various…”
Get full text

Fluorescence emission properties of 8-azaxanthine and its N-alkyl derivatives: Excited-state proton transfer, and potential applications in enzymology by Wierzchowski, Jacek, Sepioł, Jerzy, Sulikowski, Daniel, Kierdaszuk, Borys, Shugar, David

“…We have investigated the emission properties of 8-azaxanthine (8-azaXan) and its triazolo N-alkyl derivatives, with particular emphasis on…”
Get full text

Three-body effects in hydrogen fluoride: survey of potential energy surfaces by Wierzchowski, S. J., Fang, Z. H., Kofke, D. A., Tilson, J. L.

“…The potential energy surface for trimers of hydrogen fluoride is examined for multiple arrangements of the three-molecule cluster. Several established…”
Get full text

Studies of a primitive model of mixtures of nonpolar molecules with water by Wierzchowski, S. J., Monson, P. A.

“…The paper presents calculations of the properties of binary mixtures of hard spheres and directionally associating hard spheres, a simple model for mixtures of…”
Get full text

Pyrazolo[4,3-e][1,2,4]triazines: purine analogues with electronic absorption in the visible region by Mojzych, Mariusz, Rykowski, Andrzej, Wierzchowski, Jacek

“…Synthesis of several pryrazolo[4,3-e][1,2,4]-triazines is described. The absorption spectrum of some 5-substituted derivatives was found to extend to the…”
Get full text

Selective fluorescent and fluorogenic substrates for purine-nucleoside phosphorylases from various sources, and direct fluorimetric determination of enzyme levels in human and animal blood by Wierzchowski, Jacek, Ogiela, Maria, Iwańska, Beata, Shugar, David

“…The decrease in fluorescence of 7-methylguanosine (m 7Guo) accompanying its phosphorolysis is readily applicable to monitoring the level of purine nucleoside…”
Get full text

Interactions of Calf Spleen Purine Nucleoside Phosphorylase with 8-Azaguanine, and a Bisubstrate Analogue Inhibitor: Implications for the Reaction Mechanism by Wierzchowski, Jacek, Bzowska, Agnieszka, Stępniak, Katarzyna, Shugar, David

“…Interactions of calf spleen purine nucleoside phosphorylase (PNP) with a non-typical substrate, 8-azaguanine (8-azaG), and a bisubstrate analogue inhibitor,…”
Get full text

Aromatic aldehydes as fluorogenic indicators for human aldehyde dehydrogenases and oxidases: substrate and isozyme specificity by Wroczyński, P, Wierzchowski, J

“…Substrate properties of a number of potentially fluorogenic aromatic aldehydes of naphthalenes, phenanthrenes and anthracenes and of some coumarin aldehydes…”
Get more information

Interactions of calf spleen purine nucleoside phosphorylase with antiviral acyclic nucleoside phosphonate inhibitors: kinetics and emission studies by Wierzchowski, J, Kulikowska, E, Bzowska, A, Holy, A, Magnowska, L, Shugar, D

“…Association between calf spleen purine nucleoside phosphorylase and a series of phosphonylalkoxyalkyl derivatives of purine bases was studied by inhibition…”
Get more information

Fluorescence emission properties of 8-azapurines and their nucleosides, and application to the kinetics of the reverse synthetic reaction of purine nucleoside phosphorylase by Wierzchowski, Jacek, Wielgus-Kutrowska, Beata, Shugar, David

“…An extensive study has been made of the fluorescence emission properties of the neutral and ionic forms in aqueous medium of the azapurine nucleosides,…”
Get full text

Analogues of formycins A and B: synthesis and some properties of methyl derivatives of 7-amino and 7-keto pyrazolo(4,3-d)pyrimidines by Wierzchowski, J, Kuśmierek, J, Giziewicz, J, Salvi, D, Shugar, D

“…Starting from the synthesis of 3-propyl-7-ketopyrazolo(4,3-d)pyrimidine (a formal analogue of formycin B), this was converted to the 7-thio derivative, which…”
Get full text