    New chain ID            Original chain ID

6zlm-pdb-bundle1.pdb:
           A                         A
           B                        XC
           C                         K
           D                         Q
           E                         X
           F                        DA
           G                        JA
           H                        PA
           I                        VA
           J                        BB
           K                        HB
           L                        NB
           M                        TB
           N                         B
           O                         C
           P                         D
           Q                         E
           R                         F
           S                         G
           T                         H
           U                         I
           V                         J
           W                         L
           X                         M
           Y                         N
           Z                         O
           a                         P
           b                         R
           c                         S
           d                         T
           e                         V
           f                         W
           g                         Y
           h                         Z
           i                        AA
           j                        BA
           k                        CA
           l                        EA
           m                        FA

6zlm-pdb-bundle2.pdb:
           A                        GA
           B                        HA
           C                        IA
           D                        KA
           E                        LA
           F                        MA
           G                        NA
           H                        OA
           I                        QA
           J                        RA
           K                        SA
           L                        TA
           M                        UA
           N                        WA
           O                        XA
           P                        YA
           Q                        ZA
           R                        AB
           S                        CB
           T                        DB
           U                        EB
           V                        FB
           W                        GB
           X                        IB
           Y                        JB
           Z                        KB
           a                        LB
           b                        MB

6zlm-pdb-bundle3.pdb:
           A                        OB
           B                        PB
           C                        QB
           D                        RB
           E                        SB
