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. 2004 Oct 22;88(1):224–234. doi: 10.1529/biophysj.104.047456

TABLE 3.

Activation enthalpy (ΔH) and entropy (ΔS) for incorporation into PC/PG vesicles of gA and phenylalanine analogs

Gramicidin analog ΔH (kcal/mol) ΔS (e.u.)
Gramicidin A 11.8 ± 0.7 −11 ± 2
Phe9-gA 13.1 ± 0.4 −8 ± 2
Phe11-gA 14.6 ± 0.4 −4 ± 2
Phe13-gA 15.5 ± 0.5 −1 ± 2
Phe15-gA 17.0 ± 0.7 4 ± 2

Data obtained from Easton (1989).