Table 5.

Summary of the direction of fluorescence changes for cation-induced folding of Tel22.

ODN	Location	Stackeda	Mobility	Change in fluorescence intensity (U → F)	Change in polarization (U → F)	Change in fluorescence intensity for kinetic steps
Na+ (50 mM)
AP1	core	yes	fixed	b↓	↑	c↓↓↓
AP7	loop 1	no	mobile	↑	↑	↑↑
AP13	loop 2	yes	fixed	↓	↑	↓↓
AP19	loop 3	yes	mobile	↑	↓	↓↑
K+ (3 mM)
AP1	core			↓	↑	↑↓→
AP7	loop 1			↑	→	↑↓↓
AP13	loop 2			↓	→	↑↓↓
AP19	loop 3			↑	↓	↑↓↑
K+ (33 mM)
AP1	core			→	↑	↑↓
AP7	loop 1			↑	→	↑↓
AP13	loop 2			↓	→	↓
AP19	loop 3			↑	↓	↑↓

^aDetermined from the NMR structure of Tel22 (14)

^b↑ = increase, ↓ = decrease, → = no significant change.

^cIn order of steps 1, 2 and 3.