Table 1.
Structures, molecular masses, and quantities of muropeptides from Rhizobium leguminosarum bv. viciae 3841 and ctpA mutant 3845.
| Peak | Proposed Structure | Observed m/z | Calculated [M+Na]+ | % of All Peaks | |
|---|---|---|---|---|---|
| Wild Type | ctpA Mutant | ||||
| 2 | GlcNAc-MurNAc-Ala-Glu-meso-DAP | 893.4 | 893.8 | 2.0 | 2.7 |
| 3 | GlcNAc-MurNAc-Ala-Glu-meso-DAP-Gly | 950.4 | 950.9 | 1.6 | 1.6 |
| 6 | GlcNAc-MurNAc-Ala-Glu-meso-DAP-Ala | 964.5 | 964.9 | 6.2 | 8.3 |
| 10 | GlcNAc-MurNAc-Ala-Glu-meso-DAP-Ala-meso-DAP-Glu-Ala-MurNAc-GlcNAc | 1816.9 | 1816.8 | 1.3 | 2.4 |
| 11 | MurNAc-Ala-Glu-meso-DAP-Ala-meso-DAP-Glu-Ala-MurNAc | 1408.7 | 1408.4 | 1.1 | 2.2 |
| 12 | GlcNAc-MurNAc-Ala-Glu-meso-DAP-Ala-Ala-meso-DAP-Glu-Ala-MurNAc-GlcNAc | 1888.0 | 1887.9 | 2.9 | 3.0 |