    New chain ID            Original chain ID

7tei-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         C
           D                         0
           E                         3
           F                         7
           G                        1A
           H                        3A
           I                        kA
           J                        mA
           K                        NA
           L                        oA
           M                        QA
           N                        rA
           O                        SA
           P                        wA
           Q                        YA
           R                         D
           S                         E
           T                         F
           U                         G
           V                         H
           W                         I
           X                         J
           Y                         K
           Z                         L
           a                         M
           b                         N
           c                         O
           d                         P
           e                         Q
           f                         R
           g                         S
           h                         W
           i                         j
           j                         v
