    New chain ID            Original chain ID

9g3i-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         C
           D                         D
           E                         E
           F                         F
           G                         G
           H                         H
           I                         I
           J                         J
           K                         K
           L                         L
           M                         M
           N                         N
           O                         O
           P                         P
           Q                         Q
           R                         R
           S                         S
           T                         T
           U                         U
           V                         V
           W                         W
           X                         X
           Y                         Y
           Z                         Z
           a                        AA
           b                        BA
           c                        CA
           d                        DA
           e                        EA
           f                        FA
           g                        GA
           h                        HA
           i                        IA
           j                        JA
           k                        KA
           l                        LA
           m                        MA
           n                        NA
           o                        OA
           p                        PA
           q                        QA
           r                        RA
           s                        SA
           t                        TA
           u                        UA
           v                        VA
           w                        WA
           x                        XA
           y                        YA
           z                        ZA
           0                        AB
           1                        BB
           2                        CB
           3                        DB
           4                        EB
           5                        FB
           6                        GB
           7                        HB
           8                        IB
           9                        JB

9g3i-pdb-bundle2.pdb:
           A                        KB
           B                        LB
           C                        MB
           D                        NB
           E                        OB
           F                        PB
           G                        QB
           H                        RB
           I                        SB
           J                        TB
           K                        UB
           L                        VB
           M                        WB
           N                        XB
           O                        YB
           P                        ZB
           Q                        AC
           R                        BC
           S                        CC
           T                        DC
           U                        EC
           V                        FC
           W                        GC
           X                        HC
           Y                        IC
           Z                        JC
           a                        KC
           b                        LC
           c                        MC
           d                        NC
           e                        OC
           f                        PC
           g                        QC
           h                        RC
           i                        SC
           j                        TC
           k                        UC
           l                        VC
