UDP-N-acetylmuramyl-pentapeptide (UDP-MurNAc-pentapeptide) is well known to be a key intermediate of bacterial peptidoglycan biosynthesis. We first detected the occurrence of UDP-MurNAc-pentapeptide in the cyanobacterium Anabaena cylindrica (NIES-19), and identified the structure of this pentapeptide by two-dimensional 1H-1H and 1H-13C NMR correlation experiments and mass spectra.
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Kodani et al. (1999) studied this question.