Search results for "Hydrogen"
showing 10 items of 4254 documents
Formation of l(-)malate by Saccharomyces cerevisiae during fermentation
1988
When grown in a synthetic medium most of the 51 strains of the genera Saccharomyces, Saccharomycodes, Zygosaccharomyces and Schizosaccharomyces investigated formed l-malate during fermentation. The quantity varied between 0.1 and 2.6 g malate per liter. Two strains of Saccharomyces cerevisiae synthesized malate at a rate of about 1.5 g/l. Malate was liberated during the growth phase and not metabolized during the stationary phase. Optimum malate formation was observed at a sugar concentration of about 20% (w/v), at pH 5 and at suboptimal nitrogen concentrations of less than 300 mg N/liter. Of the amino acids aspartate and glutamate were most favourable. If ammonium salts were used as the ni…
An ab initio conformational study on captopril
2003
Abstract Captopril can interact regio- and stereo-specifically with various functional groups present at the active site of angiotensin converting enzyme (ACE). Since no X-ray structure of ACE is available, Captopril, as an ACE inhibitor may be used as a ‘molecular caliper’, to estimate upper and lower bound values for separation d, where the mercaptidic terminal group of the molecule is linked to the enzyme Zn2+ cofactor, while the carboxylate links via an hydrogen bond to the guanidine moiety of an arginine side chain. As the results of this Ab Initio study, the conformations of the dianionic form of the full captopril molecule are reported here.
The Candida albicans cell wall-associated glyceraldehyde-3-phosphate dehydrogenase activity increases in response to starvation and temperature upshi…
2002
We have determined the effect of environmental factors (mild thermal upshift and starvation) on the Candida albicans cell wall-associated glyceraldehyde-3-phosphate dehydrogenase (cwGAPDH) activity. Temperature upshift (from 28 to 37 degrees C) and/ or starvation (at 28 or 37 degrees C in water) of exponentially growing yeast cells caused an increase in cwGAPDH activity (3 to 5-, and 7 to 8-fold, respectively). This increase in activity did not correlate with an increase in the amount of cwGAPDH protein present, as determined by flow cytometry, immunoelectron microscopy and Western-blotting. These results indicate that thermal upshift and starvation cause an activation of the cwGAPDH in C. …
CCDC 1835272: Experimental Crystal Structure Determination
2021
Related Article: Mamadou Ndiaye, Mouhamadou Birame Diop, Abdoulaye Samb, Libasse Diop, Allen G. Oliver, Laurent Plasseraud|2020|Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische Chemie|75|815 |doi:10.1515/znb-2020-0097
CCDC 1400957: Experimental Crystal Structure Determination
2016
Related Article: Roberto Puentes, Julia Torres, Carlos Kremer, Joan Cano, Francesc Lloret, Davide Capucci, Alessia Bacchi|2016|Dalton Trans.|45|5356|doi:10.1039/C5DT05060J
CCDC 1979775: Experimental Crystal Structure Determination
2020
Related Article: Elena A. Mikhalyova, Matthias Zeller, Jerry P. Jasinski, Raymond J. Butcher, Luca M. Carrella, Alexander E. Sedykh, Konstantin S. Gavrilenko, Sergey S. Smola, Michael Frasso, Sebastian Calderon Cazorla, Kuluni Perera, Anni Shi, Habib G. Ranjbar, Casey Smith, Alexandru Deac, Youlin Liu, Sean M. McGee, Vladimir P. Dotsenko, Michael U. Kumke, Klaus Müller-Buschbaum, Eva Rentschler, Anthony W. Addison, Vitaly V. Pavlishchuk|2020|Dalton Trans.|49|7774|doi:10.1039/D0DT00600A
CCDC 1979776: Experimental Crystal Structure Determination
2020
Related Article: Elena A. Mikhalyova, Matthias Zeller, Jerry P. Jasinski, Raymond J. Butcher, Luca M. Carrella, Alexander E. Sedykh, Konstantin S. Gavrilenko, Sergey S. Smola, Michael Frasso, Sebastian Calderon Cazorla, Kuluni Perera, Anni Shi, Habib G. Ranjbar, Casey Smith, Alexandru Deac, Youlin Liu, Sean M. McGee, Vladimir P. Dotsenko, Michael U. Kumke, Klaus Müller-Buschbaum, Eva Rentschler, Anthony W. Addison, Vitaly V. Pavlishchuk|2020|Dalton Trans.|49|7774|doi:10.1039/D0DT00600A
CCDC 176064: Experimental Crystal Structure Determination
2002
Related Article: R.P.Doyle, P.E.Kruger, M.Julve, F.Lloret, M.Nieuwenhuyzen|2002|CrystEngComm|4|13|doi:10.1039/b111350j
Crystal structure of zwitterionic 3-(2-hydroxy-2-phosphonato-2-phosphonoethyl)imidazo[1,2-a]pyridin-1-ium monohydrate (minodronic acid monohydrate): …
2014
A redetermination of the crystal structure of minodronic acid monohydrate was carried out in order to provide accurate atomic coordinates and geometry information, whose knowledge is fundamental to elucidate the presumed polymorphism of the compound at room temperature.
Direct electrochemical generation of organic carbonates by dehydrogenative coupling.
2018
Organic carbonates are an important source for polycarbonate synthesis. However, their synthesis generally requires phosgene, sophisticated catalysts, harsh reaction conditions, or other highly reactive chemicals. We present the first direct electrochemical generation of mesityl methyl carbonate by C–H activation. Although this reaction pathway is still challenging concerning scope and efficiency, it outlines a new strategy for carbonate generation.