    New chain ID            Original chain ID

38qp-pdb-bundle1.pdb:
           A                         A
           B                         E
           C                         Q
           D                         T
           E                         V
           F                         D
           G                         N
           H                         P
           I                        R1
           J                        R2
           K                         U
           L                         J
           M                         S
