Results 31 to 40 of about 352,557 (290)

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Heat Capacity and Thermodynamic Properties of Photocatalitic Bismuth Tungstate, Bi₂WO₆

Metals
The photocatalytic activity of Bi2WO6 Aurivillius phase has been widely exploited for the degradation of a wide range of gaseous and aqueous molecules, as well as microorganisms, under the influence of visible irradiation.
Bogusław Onderka, Anna Kula
doaj   +1 more source

Logarithmic Corrections to Scaling in the $XY_2$--Model [PDF]

, 1994
We study the distribution of partition function zeroes for the $XY$--model in two dimensions. In particular we find the scaling behaviour of the end of the distribution of zeroes in the complex external magnetic field plane in the thermodynamic limit ...
A.C. Irving, Abe, Amit, Dunlop, Fisher, José, Kenna, Kenna, Kenna, Kenna, Kenna, Kosterlitz, Kosterlitz, Luck, Nightingale, R. Kenna, Roomany, Wolff, Yang, Yang   +19 more
core   +3 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Heat Capacity and Thermodynamic Characteristics of Sodium and Potassium Nickelite-Manganites of Neodymium of NdNa₂NiMnO₅ and NdK₂NiMnO₅

Applied Sciences
For the first time, neodymium nickel manganites NdNa2NiMnO5 and NdK2NiMnO5 were synthesized via the solid-state interaction method, and they crystallize in a cubic system.
Shuga Bulatovna Kasenova, Zhenisgul Imangalievna Sagintaeva, Bulat Kunurovich Kasenov, Erbolat Ermekovich Kuanyshbekov, Aigul Tanirbergenovna Ordabaeva, Manara Amangeldievna Isabaeva   +5 more
doaj   +1 more source

Conductometric Studies of 1-Ethyl-3-methylimidazolium Tetrafluoroborate and 1-Butyl-3-methylimidazolium Tetrafluoroborate in 1-Propanol at Temperatures from (283.15 to 318.15) K

International Journal of Electrochemical Science, 2014
The electrical conductances of dilute solutions of the ionic liquids 1-ethyl-3-methylimidazolium tetrafluoroborate [emim][BF4] and 1-butyl-3-methylimidazolium tetrafluoroborate [bmim][BF4] in 1- propanol have been measured in the temperature range from ...
Agnieszka Borun, Adam Bald
doaj   +1 more source

Solid-phase equilibria in the GeBi2Te4-Bi2Te3-Te system and thermodynamic properties of compounds of the GeTe·mBi2Te3 homologous series

Фізика і хімія твердого тіла, 2022
The GeBi2Te4-Bi2Te3-Te system was investigated by XRD and EMF measurements of the reversible concentration cell of the type (-) GeTe (solid) │glycerol +KCl │ Ge-Bi-Тe (solid) (+) in the 300-450K temperature range. It was shown that, in the indicated
T.M. Alakbarova, E.N. Orujlu, D.M. Babanly, S.Z. Imamaliyeva, M.B. Babanly   +4 more
doaj   +1 more source

Thermodynamic modeling of the LiF-YF3 phase diagram

, 2012
A thermodynamic optimization of the LiF-YF3 binary phase diagram was performed by fitting the Gibbs energy functions to experimental data that were taken from the literature, as well as from own thermoanalytic measurements (DTA and DSC) on HF-treated ...
Abell, Barin, D. Klimm, Guggenheim, Harris, I.A. dos Santos, I.M. Ranieri, Klimm, Lyapunov, Pelikan, Ranieri, Redlich, S.L. Baldochi, Safi, Thoma, van der Meer, Wetter   +16 more
core   +1 more source

The postulates of gravitational thermodynamics [PDF]

, 1996
The general principles and logical structure of a thermodynamic formalism that incorporates strongly self-gravitating systems are presented. This framework generalizes and simplifies the formulation of thermodynamics developed by Callen.
B. F. Whiting, C. Lanczos, C. Lanczos, C. Rovelli, D. Nunez, E. A. Guggenheim, E. A. Martinez, E. A. Martinez, Erik A. Martinez, G. Carrington, H. B. Callen, H. Braden, J. Binney, J. D. Bekenstein, J. D. Brown, J. D. Brown, J. D. Brown, J. D. Brown, J. D. Brown, J. D. Brown, J. D. Brown, J. Louko, J. W. York, Jr., M. J. Massieu, O. B. Zaslavskii, O. B. Zaslavskii, O. B. Zaslavskii, O. B. Zaslavskii, P. C. W. Davies, R. C. Tolman, R. F. Greene, S. W. Hawking, V. de la Cruz, V. P. Frolov, V. P. Frolov, W. Israel, W. Israel   +36 more
core   +2 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source