Protocol to request
            
                Analysis of frequency-domain fluorescence lifetime data
                
                
            
        
        
            
                Tools and resources
            
            
                An improved fluorescent noncanonical amino acid for measuring conformational distributions using time-resolved transition metal ion FRET
                
            
            
            
                William N Zagotta et al.
            
            
                DOI: 10.7554/eLife.70236