    New chain ID            Original chain ID

7tgh-pdb-bundle1.pdb:
           A                         1
           B                        1B
           C                         2
           D                        2B
           E                         3
           F                        3A
           G                        3B
           H                        3C
           I                        3D
           J                        3E
           K                        3F
           L                        3G
           M                        3H
           N                        3I
           O                        3J
           P                        3M
           Q                        3a
           R                        3b
           S                        3c
           T                        3d
           U                        3e
           V                        3f
           W                        3g
           X                        3h
           Y                        3i
           Z                        3j
           a                        3l
           b                        3m
           c                         4
           d                        4L
           e                         5
           f                        5B
           g                         6
           h                        A2
           i                        A5
           j                        A6
           k                        A7
           l                        A9
           m                        AB
           n                        AC
           o                        AL
           p                        AM
           q                        B7
           r                        B8
           s                        BL
           t                         C
           u                        C1
           v                        C2
           w                        C3
           x                        TD
           y                        J1
           z                        FX
           0                        T2

7tgh-pdb-bundle2.pdb:
           A                        T1
           B                        A1
           C                        X1
           D                        T6
           E                        T5
           F                         R
           G                        S1
           H                        S2
           I                        S3
           J                        S4
           K                        S6
           L                        S7
           M                        S8
           N                        B9
           O                        TX
           P                        A8
           Q                        TB
           R                        V1
           S                        V2
           T                        B6
           U                        BM
           V                        C4
           W                        AN
           X                        B4
           Y                        T4
           Z                        T8
           a                        B2
           b                        T3
           c                        P1
           d                        B3
           e                        TA
           f                        S5
           g                        TC
           h                        P2
           i                        A3
           j                        T9
           k                        TE
           l                        T7
