Table 3.
Peak nomenclature
| Peak | Structure | Abbreviations |
|---|---|---|
| M1 | M.P. | M. monomer; P. pentapeptide as stem peptide |
| M2 | M.P.G1 | Monomer pentapeptide modified with one glycine |
| M2* | M.T.G2/2 | Tetrapeptide as stem peptide; G glycine residue; 2/2 two glycine residues per two possible attachment sites (Lys in position 3 or Ala in position 4) |
| M3 | M.P.G3 | Monomer pentapeptide modified with three glycines |
| M4 | M.P.G5 | Monomer pentapeptide modified with five glycines |
| M6* | M.T.G6/2 | See M2* |
| M9 | M.Pn.G5 + M.P.A1 | A alanine; n, glutamic acid instead of glutamine in position 2; two muropeptides with identical retention time |
| M10 | M.P.G4A1 | See M4 and M9 |
| M11 | M.Pn. | See M1 plus unknown muropeptide component |
| D1 | D.P.G5 + T.G1 or D.P.G1 + T.G5 | Dimer of M4 and M2 |
| D2* | D.2xT.G11/3 | Dimer of M4 (degradation product) |
| D3 | D.P.G5 + T.G5 | Dimer of M4 |
| D4 | D.P.G5 + T.G3 | Dimer of M3 and M4 |
| D5 | D.Pn.G5 + T.G5 or D.P.G5 + Tn.G5 | Dimer of M4 and M9 |
| D10 | D.P.G5 + T.G4A1 or D.P.G4A1 +T.G5 | Dimer of M4 and M10 |
| T3 | D.P.G5 + 2xT.G5 | Trimer of M4 |
| Proposed structures for novel peaks | ||
| x | M.T.G1/1 | See M2*; Gly at position 4 of alanine |
| y1 | M.P. + M.P. | Dimer of M1 |
| y2 | M.P. + M.P.G1 | Dimer of M1 and M2 |
| y3 | M.P. + M.P.G5 | Dimer of M1 and M2 |
| z2 | M.P. + M.P.G1 + M.P.G5 | |
| z3 | M.P. + M.P.G5 + M.P.G5 | |
*
Structures are probably degradation products produced by an endopeptidase.