Table 3.

Assignment of Global Conformation States from ¹⁹F NMR Measurements

F6 Na+Complexes	Ligands and Substrates	Chemical Shifts of the 19F NMR Peaks (ppm)		Conformation Assignments	Figure
(F6)(Na+)E(Ain)	F6	-56.52 ± 0.01		αOβO	Figure 1
(F6))(Na+)E(A-A)	F6; L-Ser		-55.45 ± 0. 01	αCβC	Figure 1
(F6))(Na+)E(A-A)(BZI)	F6; L-Ser; BZI		-55.45 ± 0. 01	αCβC	Figure 2
(F6))(Na+)E(Q)Indoline	F6; L-Ser; Indoline		-55.45 ± 0. 01	αCβC	Figure 2
(F6)E(Q)Aniline	F6; L-Ser; Aniline		-55.45 ± 0. 01	αCβC	Figure 2
(F6))(Na+)E(Q)2AP	F6; L-Ser; 2-Aminophenol		-55.45 ± 0. 01	αCβC	Figure 4
(F6))(Na+)E(Q)3 + (F6)E(Aex)2	F6; L-Trp	-56.52 ± 0.01	-55.45 ± 0. 01	αCβC and αOβO or αOβC	Figure S1
(F6))(Na+)E(Q)L-His + (F6)E(Aex)L-His	F6; L-His	-56.52 ± 0.01	-55.45 ± 0. 01	αCβC and αOβO or αOβC	Figure S2
Cs+ F6 Complex
(F6))(Cs+)E(Q)L-His	F6; L-His		-55.45 ± 0. 01		Figure S2
Na+ F9 Complexes
(F9))(Na+)E(Ain)	F9	-56.79 ± 0.01			Figure 5
(F9))(Na+)E(A-A)	F9; L-Ser		-56.91 ± 0. 01		Figure 5
(F9))(Na+)E(A-A)(BZI)	F9; L-Ser; BZI		-56.91 ± 0. 01		Figure 5
(F9))(Na+)E(Q)Indoline	F9; L-Ser; Indoline		-56.91 ± 0. 01		Figure 5
(F9)(Na+)E(Q)2AP	F9; L-Ser; 2-Aminophenol		-56.91 ± 0. 01		Figure 5