Publication details

STUDY OF THE CARBOHYDRATE CH/pi INTERACTIONS FAVOURABLE REGIONS IN THE CARBOHYDRATE SURROUNDINGS

Authors

KOZMON Stanislav MATUŠKA Radek SPIWOK Vojtěch KOČA Jaroslav

Year of publication 2011
Type Conference abstract
MU Faculty or unit

Central European Institute of Technology

Citation
Description Molecular recognition of carbohydrates by proteins plays a key role in many biological processes including immune response, pathogen entry into a cell, cell-cell adhesion and so forth1-5. Recent studies show that key role in protein - saccharide recognition may play dispersive interactions, such as CH/pi interactions of aromatic amino acids with non polar faces of carbohydrates. In this study we present the first systematic computational three-dimensional scan of carbohydrate hydrophobic patches for the ability to interact via CH/pi dispersion interactions. The carbohydrates b-D-glucopyranose, b-D-mannopyranose and a-L-fucopyranose were studied in a complex with a benzene molecule, which served as a model of the CH/pi interaction in carbohydrate/protein complexes. The 3D relaxed scans were performed at the SCC-DFTB-D level with 3 757 grid points for both carbohydrate hydrophobic sides. The interaction energy of all grid points was recalculated at the DFT-D BP/def2-TZVPP level.
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