Solvent and viscosity effect on the kinetics of the thermal cis-trans isomerization of 3'-nitro-4-diethylaminoazobenzene

1989 ◽  
Vol 11 (3) ◽  
pp. 179-189 ◽  
Author(s):  
Bruno Marcandalli ◽  
Pier Luigi Beltrame ◽  
Ernestina Dubini-Paglia ◽  
Alberto Seves
Keyword(s):  
Viscosity Effect ◽  
Trans Isomerization ◽  
Kinetics Of

KINETICS OF A THERMAL CIS-TRANS ISOMERIZATION. II

1932 ◽  
Vol 54 (6) ◽  
pp. 2208-2215 ◽  
Author(s):  
M. Nelles ◽  
G. B. Kistiakowsky
Keyword(s):  
Trans Isomerization ◽  
Kinetics Of

scholarly journals The Effect of Proline cis-trans Isomerization on the Folding of the C-Terminal SH2 Domain from p85

2019 ◽  
Vol 21 (1) ◽  
pp. 125
Author(s):  
Francesca Troilo ◽  
Francesca Malagrinò ◽  
Lorenzo Visconti ◽  
Angelo Toto ◽  
Stefano Gianni
Keyword(s):  
Protein Interactions ◽  
Specific Interaction ◽  
Sh2 Domain ◽  
Regulatory Subunit ◽  
Wild Type ◽  
Protein Protein Interactions ◽  
Sh2 Domains ◽  
Trans Isomerization ◽  
A Site ◽  
Kinetics Of

SH2 domains are protein domains that modulate protein–protein interactions through a specific interaction with sequences containing phosphorylated tyrosines. In this work, we analyze the folding pathway of the C-terminal SH2 domain of the p85 regulatory subunit of the protein PI3K, which presents a proline residue in a cis configuration in the loop between the βE and βF strands. By employing single and double jump folding and unfolding experiments, we demonstrate the presence of an on-pathway intermediate that transiently accumulates during (un)folding. By comparing the kinetics of folding of the wild-type protein to that of a site-directed variant of C-SH2 in which the proline was replaced with an alanine, we demonstrate that this intermediate is dictated by the peptidyl prolyl cis-trans isomerization. The results are discussed in the light of previous work on the effect of peptidyl prolyl cis-trans isomerization on folding events.

The Kinetics of Thermal Cis—Trans Isomerization. IV

1935 ◽  
Vol 57 (2) ◽  
pp. 269-271 ◽  
Author(s):  
G. B. Kistiakowsky ◽  
Walter R. Smith
Keyword(s):  
Trans Isomerization ◽  
Kinetics Of

Kinetics of cis-trans Isomerization of para-Substituted N-Benzylideneanilines

1965 ◽  
Vol 69 (5) ◽  
pp. 1584-1587 ◽  
Author(s):  
G. Wettermark ◽  
J. Weinstein ◽  
J. Sousa ◽  
L. Dogliotti
Keyword(s):  
Trans Isomerization ◽  
Kinetics Of

Photoresponsive New Polysiloxanes with 4-Substituted Azobenzene Side-Groups. Synthesis, Characterization and Kinetics of the ReversibleTrans-Cis-Trans Isomerization

2007 ◽  
Vol 208 (24) ◽  
pp. 2600-2610 ◽  
Author(s):  
Nicolae Hurduc ◽  
Dominique Adès ◽  
Joël Belleney ◽  
Alain Siove ◽  
Georges Sauvet
Keyword(s):  
Trans Isomerization ◽  
Kinetics Of

Triplett-sensibilisierte Photoreaktionen von Azobenzol in schwefelsaurer Lösung / Triplet-sensitized Photoreaction of Azobenzene in Sulphuric Acid

1981 ◽  
Vol 36 (11) ◽  
pp. 1180-1186 ◽  
Author(s):  
Hermann Rau ◽  
Alan D. Crosby ◽  
Alan D. Crosby ◽  
Rudolf Frank
Keyword(s):  
Sulphuric Acid ◽  
Electron Acceptor ◽  
Thermally Induced ◽  
Photostationary State ◽  
Trans Isomerization ◽  
Azo Group ◽  
Kinetics Of

The kinetics of the thermally induced cis-trans-isomerization of protonated azobenzene de­pend upon the amount of acid in a mixed H2SO4-H2O-solvent. This is rationalized by the assumption of a doubly protonated azobenzene molecule as an intermediate. Triplet sensitization of protonated azobenzene in 73% sulphuric acid (by weight) leads to cis-trans-isomerization and a photostationary state. This is similar to stilbene. With 1-aminonaphthalene as a sensitizer a photoreduction and cleavage of the azo group is an alternative reaction. It is shown that the cis-azobenzene molecule is the electron acceptor and that the photoreduction can be quenched by the addition of oxygen.

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