3 Sep
                
                    2009
                
            
            
                3 Sep
                
                '09
                
            
            
            
        
    
                9:52 a.m.
            
        Hi all - is it possible to specify custom planar restraints in phenix.refine? I'm refining a 3.8A protein-dna complex and although i've set hydrogen bonding restraints between base pairs, they still become very twisted and buckled after refinement. Alan