Peptide models XXIX. cis-trans Isomerism of peptide bonds: Ab initio study on small peptide model compound; the 3D-Ramachandran map of formylglycinamide
- Baldoni, Hector Armando
- Zamarbide, Graciela Nidia
- Enriz, Ricardo Daniel
- Jauregui, Esteban Adrian
- Farkas, Od̈ön
- Perczel, András
- Salpietro, Salvatore J.
- Csizmadia, Imre Gyula
DOIAbstract
Thermodynamic separations for cis and trans-amides and formylglycinamide range from 0.00 to 4.77 kcal/mol as computed at various levels of theory. The barriers for trans ← cis-isomerization, for the same set of compounds, computed at various levels of theory, were found between 15.69 and 22.67 kcal/mol. The cis- and trans-Ramachandran maps of formylglycinamide are compared and the topology of the ab initio 3D-Ramachandran map is presented for the first time.Fil: Baldoni, Hector Armando. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Matemática Aplicada de San Luis "Prof. Ezio Marchi". Universidad Nacional de San Luis. Facultad de Ciencias Físico, Matemáticas y Natur...
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