    New chain ID            Original chain ID

9e71-pdb-bundle1.pdb:
           2                         2
           1                         1

9e71-pdb-bundle2.pdb:
           A                         4
           B                        AA
           C                        AB
           D                        AC
           E                        AD
           F                        AE
           G                        AF
           H                        AG
           I                        AH
           J                        AI
           K                        AJ
           L                        AK
           M                        AL
           N                        AM
           O                        AN
           P                        AO
           Q                        AP
           R                        AQ
           S                        AR
           T                        AS
           U                        AT
           V                        AU
           W                        AV
           X                        AW
           Y                        AX
           Z                        AY
           a                        AZ
           b                        Aa
           c                        Ab
           d                        Ac
           e                        Ad
           f                        Ae
           g                        Af
           h                        Ag
           i                        Ah
           j                        Ai
           k                        Aj
           l                        Ak
           m                        BA
           n                        BB
           o                        BC
           p                        BD
           q                        BE
           r                        BF
           s                        BG
           t                        BH
           u                        BI
           v                        BJ
           w                        BK
           x                        BL
           y                        BM
           z                        BN
           0                        BO
           1                        BP
           2                        BQ
           3                        BR
           4                        BS
           5                        BT
           6                        BU
           7                        BV
           8                        BW
           9                        BX

9e71-pdb-bundle3.pdb:
           A                        BY
           B                        BZ
           C                        Ba
           D                        Bb
           E                        Bc
