TABLE 1

Structures of peptidoglycan monomers of S. coelicolor A3(2)

MuropeptideaMonoisotopic mass (Da)
ObservedCalculated
GlcNAc–MurNAc–l-Ala–d-Gln697.30697.30
GlcNAc–MurNAc–l-Ala–d-Glu698.29698.29
GlcNAc–MurN–l-Ala–d-iGln-l,l-A2pm(Gly)884.40884.40
GlcNAc–MurNAc–l-Ala–d-iGln-l,l-A2pm(Gly)926.40926.41
GlcNAc–MurN–l-Ala–d-iGlu-l,l-A2pm(Gly)885.38885.38
GlcNAc–MurNAc–l-Ala–d-iGlu-l,l-A2pm(Gly)927.39927.39
GlcNAc–MurN–l-Ala–d-iGln-l,l-A2pm(Gly)-d-Ala955.44955.43
GlcNAc–MurNAc–l-Ala–d-iGln-l,l-A2pm(Gly)-d-Ala997.44997.45
GlcNAc–MurNAc–l-Ala–d-iGln-l,l-A2pm(Gly)-d-Ala–d-Ala1,068.491,068.48
GlcNAc–MurNAc–l-Ala–d-iGlu-l,l-A2pm(Gly)-d-Ala998.43998.43
GlcNAc–MurNAc–l-Ala–d-iGlu-l,l-A2pm(Gly)-d-Ala–d-Ala1,069.471,069.47
  • a d-iGln, d-iso-glutamine; l,l-A2pm(Gly), glycine linked to the side chain amine of l,l-A2pm.