TABLE 2.
Muropeptide composition of the peptidoglycan of derivatives of strain PA14 harboring various deletions
| Muropeptide (cross-link) | Calculated massa | Observed massa of muropeptides for strains with indicated deletion(s) |
|||||
|---|---|---|---|---|---|---|---|
| None | ΔldtPae1 | ΔldtPae2 | ΔldtPae3 | ΔldtPae1 ΔldtPae2 ΔldtPae3 | ΔoprI | ||
| Monomers | |||||||
| Tri | 870.371 | 870.370 | 870.369 | 870.371 | 870.370 | 870.374 | 870.364 |
| Tetra | 941.408 | 941.407 | 941.406 | 941.406 | 941.408 | 941.412 | 941.405 |
| Tri→KR | 1,154.567 | 1,154.566 | 1,154.565 | ND | 1,154.565 | ND | ND |
| Dimers | |||||||
| Tri-Tri (3→3) | 1,722.731 | 1,722.731 | ND | ND | ND | ND | ND |
| Tetra-Tri (4→3) | 1,793.768 | 1,793.766 | 1,793.764 | ND | 1,793.767 | ND | 1,793.761 |
| Tri-Tetra (3→3) | 1,793.768 | 1,793.764 | ND | 1,793.764 | 1,793.766 | ND | 1,793.763 |
| Tetra-Tetra (4→3) | 1,864.805 | 1,864.802 | 1,864.801 | 1,864.799 | 1,864.804 | 1,864.818 | 1,864.800 |
a
Monoisotopic mass. ND, not detected. Data are representative of three biological repeats except for strain ΔoprI (two repeats).