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. 2004 Aug;87(2):831–843. doi: 10.1529/biophysj.104.041715

TABLE 1.

Lifetimes of various forms of membrane-bound gramicidin

Gramicidin conformation α1 τ1 (ns) α2 τ2 (ns) τ* (ns)
Nonchannel 0.78 1.05 0.22 4.25 2.76
Intermediate I 0.87 0.65 0.13 3.73 2.07
Intermediate II 0.83 0.64 0.17 2.92 1.74
Channel 0.89 0.87 0.11 3.46 1.72

The excitation wavelength was 297 nm; emission was monitored at 340 nm. All other conditions are as in Fig. 1. See Materials and Methods for other details.

*

Calculated using Eq. 5.