Table II.

Summary of Fluorescence Characteristics at Different Sites in Shaker

Site		Less constrained at		More accessible to D2O at		More accessible to iodide at		Modulated by pH at
M356C		−90 mV		−90 mV		0 mV		−90 mV
A359C		0 mV		0 mV		—		−90 mV
V363C		0 mV		—		—		—