On the base of the semi-empirical method of conformational analysis low-energetic conformations have been found for the glycopeptides with the O-beta-N-acetyl-D-muramic acid or the O-beta-N-acetyl--D-glucosaminyl-(1-4)-N-acetyl-D-muramic acid in the glycan part and L-Ala--D-GluNH2, L-Ala--L-GluNH2, D-Ala--D-GluNH2 in the peptide part. It was shown that for either molecule preferentiability of any conformation is determined mainly by interactions between dipeptide and muramic acid residue.
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