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Chain A from PDB  Type:DNA  Length:12
                                           
                  1D27 A  1 CGCgAATTTGCG 12
                               |    10  
                               |        
                               4-6OG    


Chain B from PDB  Type:DNA  Length:12
                                           
                  1D27 B 13 CGCgAATTTGCG 24
                               |    22  
                              16-6OG
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