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. Author manuscript; available in PMC: 2014 Jun 25.
Published in final edited form as: Biochemistry. 2013 Jun 13;52(25):4413–4421. doi: 10.1021/bi400344b

Table 1.

Fitted parameters of urea-induced equilibrium unfolding of OmpA monitored by tryptophan fluorescence.

Cα-bilayer center
distance (Å)		 Cm
(M)		 m
(kcal/mol/M)		 ΔGoUnfold,H2O
(kcal/mol)
W0 none 2.0 ± 0.1 1.2± 0.1 2.5 ± 0.2
W7 −10.3 3.0 ± 0.1 2.1 ± 0.2 6.3 ± 0.5
W9 −5.2 1.9 ± 0.1 2.2 ± 0.1 4.2 ± 0.4
W11 0 2.1 ± 0.1 2.7 ± 0.3 5.4 ± 0.7
W13 4.7 2.2 ± 0.1 2.3 ± 0.2 5.1 ± 0.5
W15 9.6 2.2 ± 0.1 1.7 ± 0.1 3.7 ± 0.4