Table 1.

Detected muropeptides from whole-cell analysis (in molecules per bacterium ×10⁴).^a

Muropeptide	Wild-type	Inducedb	p-valuec
NAG-1,6-anhNAM
2a	1.5 ± 0.07	0.3 ± 0.01	0.01*
2b	0.2 ± 0.01	0.08 ± 0.01	0.004*
2c	0.8 ± 0.05	0.3 ± 0.02	0.02*
2d	5.5 ± 0.3	1.0 ± 0.3	0.002*
2e	0.01 ± 0.005	0.1 ± 0.02	0.04*
1,6-anhNAM
4c	0.3 ± 0.06	0.1 ± 0.003	0.0003*
4d	0.4 ± 0.01	0.07 ± 0.003	0.01*
4e	N.D.d	0.08 ± 0.01	0.04*
(NAG-NAM)n-NAG-1,6-anhNAM
3cc	0.1 ± 0.01	0.02 ± 0.006	0.003*
3cd	0.2 ± 0.02	0.03 ± 0.007	0.03*
3dd	0.9 ± 0.06	0.09 ± 0.03	0.002*
3ddd	0.1 ± 0.02	0.01 ± 0.003	0.049*
NAG-1,6-NAM-crosslinked-1,6-NAM-NAG
5cd	0.03 ± 0.004	0.02 ± 0.001	0.2
5dd	0.3 ± 0.01	0.07 ± 0.007	0.001*
6dd	0.04 ± 0.001	0.02 ± 0.004	0.07
Reduced end
2a-R	0.07 ± 0.01	N.D.d	0.02*
2c-R	0.07 ± 0.03	0.02 ± 0.002	0.11
2d-R	0.5 ± 0.1	0.1 ± 0.03	0.06
5dd-RR	0.1 ± 0.002	0.01 ± 0.002	0.0002*
5dd-R	0.02 ± 0.002	0.009± 0.002	0.047*
Totale	11.1 ± 0.8	2.4 ± 0.5

^aAverage of two runs.

^bPAO1 was exposed to cefoxitin at 512 μg/mL.

^cp-values from Student t-test.

Numbers with *are significantly different (p < 0.05) between the wild-type and induced sample.

^dnot detected.

^etotal-detected muropeptides.