5 Dec
                
                    2007
                
            
            
                5 Dec
                
                '07
                
            
            
            
        
    
                4:55 p.m.
            
        Hi Joe, Our group (Berkeley) is working with the Richardsons to analyze RNA sugar puckers and adjust the restraints for the 2' and 3' states. This should become available relatively soon. Ralf