    New chain ID            Original chain ID

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

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