Table 3.

Excited state lifetime distribution of UDP-MurNAc-pentapeptide-DNS (40 μM), DNS-lipid I, and DNS-lipid II (5 μM each)

Sample	α1	α2	α3	τ1 (ns)	τ2 (ns)	τ3 (ns)	〈τ〉∗ (ns)
UDP-MurNAc-pentapeptide-DNS	0.22 ± 0.02	0.03 ± 0.02	0.75 ± 0.02	0.20 ± 0.06	1.38 ± 0.53	3.58 ± 0.12	2.77 ± 0.06
DNS-lipid I	0.19 ± 0.01	0.06 ± 0.01	0.75 ± 0.02	0.92 ± 0.14	4.23 ± 0.31	14.28± 0.09	11.16 ± 0.15
DNS-lipid I/clausin	0.21 ± 0.02	0.14 ± 0.01	0.65 ± 0.02	0.65 ± 0.10	2.45 ± 0.47	11.88 ± 0.24	8.20 ± 0.05
DNS-lipid II	0.20 ± 0.01	0.08 ± 0.01	0.72 ± 0.01	0.66 ± 0.15	3.33 ± 0.38	14.32 ± 0.03	10.69 ± 0.28
DNS-lipid II/clausin	0.23 ± 0.01	0.12 ± 0.03	0.65 ± 0.03	0.81 ± 0.11	3.19 ± 1.05	11.98 ± 0.25	8.36 ± 0.25

Microcuvettes of 140 μL were used. Clausin concentration, 130 μM; DPC, 1%; excitation, 375 nm; emission, 525 nm + Schott KV418 cutoff filter.

^∗Amplitude-averaged lifetime was defined as $\langle \tau \rangle =\sum _i{\alpha }_i{\tau }_i$.