The Research on the DNA Three-stranded Structural Model and Energetics
 
                
                 
                
                    
                    
                    
                                        
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Abstract
    Based on the image of a denaturation DNA three-stranded braid structure obtained from STM,this paper presented respectively DNA three-stranded braid and tri-helix structure molecular models with molecular building.After doing the energy optimization using conjugated gradient method,we did the energy analysis,and then discussed the stability and structural features of DNA three-stranded braid and tri-helix structures.
 
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