    New chain ID            Original chain ID

38ol-pdb-bundle1.pdb:
           A                         P
           B                         A
           C                         N
           D                        S2
           E                         Q
           F                         R
           G                         T
           H                        S1
           I                         D
           J                         E
           K                         G
           L                         I
           M                         J
           N                         K
           O                         O
           P                         U
