    New chain ID            Original chain ID

5j4d-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         C
           D                         D

5j4d-pdb-bundle2.pdb:
           A                         E
           B                         F
           C                         G
           D                         H
           E                         I
           F                         J
           G                         K
           H                         L
           I                         M
           J                         N
           K                         O
           L                         P
           M                         Q
           N                         R
           O                         S
           P                         T
           Q                         U
           R                         V
           S                         W
           T                         X
           U                         Y
           V                         Z
           W                        AA
           X                        BA
           Y                        CA
           Z                        DA
           a                        EA
           b                        FA
           c                        GA
           d                        HA
           e                        IA
           f                        JA
           g                        KA
           h                        LA
           i                        MA
           j                        NA
           k                        OA
           l                        PA
           m                        QA
           n                        RA
           o                        SA
           p                        TA
           q                        UA
           r                        VA
           s                        WA
           t                        XA
           u                        YA
           v                        ZA
           w                        AB
           x                        BB
           y                        CB
           z                        DB
           0                        FB

5j4d-pdb-bundle3.pdb:
           A                        GB
           B                        HB
           C                        IB
           D                        JB
           E                        KB
           F                        LB
           G                        MB
           H                        NB
           I                        OB
           J                        PB
           K                        QB
           L                        RB
           M                        SB
           N                        TB
           O                        UB
           P                        VB
           Q                        WB
           R                        XB
           S                        YB
           T                        ZB
           U                        AC
           V                        BC
           W                        CC
           X                        DC
           Y                        EC
           Z                        FC
           a                        GC
           b                        HC
           c                        IC
           d                        JC
           e                        KC
           f                        LC
           g                        MC
           h                        NC
           i                        OC

5j4d-pdb-bundle4.pdb:
           A                        PC
           B                        QC
           C                        RC
           D                        SC
           E                        TC
           F                        UC
           G                        VC
           H                        WC
           I                        XC
           J                        YC
           K                        ZC
           L                        AD
           M                        BD
           N                        CD
           O                        DD
           P                        ED
           Q                        FD
           R                        GD
           S                        HD
           T                        ID
