Both are butene-dioic acids, but the cis-isomer is called maleic acid and the trans-isomer is called fumaric acid. Maleic and fumaric acid are not mirror images of each other, so they are not enantiomers. They have separate properties, such as maleic acid is more water soluble and has a...
Polyunsaturated fatty acyls usually contain cis double bonds, but can also contain trans double bonds (which are called trans fats). Example of an unsaturated fatty acid Glycerides Glycerides (also known as glycerolipids or acylglycerols) are formed from the esterification of glycerol to one, two...
A purification method, using acetone precipitation, and a simple colonmetric assay method for citrus acetylesterase, using 2,6-dichlorobenzenonejndophenylacetate as a substrate are described.Reaction rate constants have been determined of the inhibition of citrus acetylesterase at pH 7.5 and 25° by...
For instance, in a study of iminodihydrofurans, calculated spin–spin coupling constants were compared with experimental data to establish the configuration of the CNH group (orientation of the nitrogen lone pair) and the conformation of the OCCC fragment (s-cis vs. s-trans) [226]. Recent ...
Interactive 3D animations and models of LISICON, which stands for "Li superionic conductor", it has a rigid framework of Li11Zn(GeO4)4 where the stationery lithium ions share sites with zinc.
A new optical storage technology based on the STED / RESOLFT process will be presented, allowing the cis-trans isomerism of suitable molecules such as cyclohexane or azo chromophores to be altered or switched by means of the STED / RESOLFT process. which corresponds to a storing operation to ...
S. Synthesis and Derivatization of the Bis(amido)-lambda(3)-cyclodiphosphazanes cis-[R '(H)NP(mu-NR)](2), Including a Rare Example, trans- [tBu(H)N(Se)P(mu-NCy)](2), Showing Intermolecular Se***H-O Hydrogen Bonding. Eur. J. Inorg. Chem. 2011, 2011 (14), 2264-2272. (...
Cyclophilins, a family of highly conserved cellular peptidyl–prolyl cis–trans isomerases (PPIase), are involved in many cellular processes such as protein folding and trafficking. There are over 16 human cyclophilins with different subcellular localizations and functions (Wang and Heitman, 2005). ...
Besides a conformational change of the double mutated EGFR molecule the explanation may be again attributed to heterogeneous subpopulations of the tumour. This means that both mutations could occur in different clones or in the same cell and in this case in cis or in trans. However, heterogeneity...
CIS-trans energy differencesopen-shell systemsAb initio SCF and Cl calculations have shown that the most important factor in determining the relative energies of conformational isomers in free radicals is the movement of electron density into the singly occupied orbital. This is most favorable when ...