    New chain ID            Original chain ID

9t7h-pdb-bundle1.pdb:
           1                         1
           2                         2

9t7h-pdb-bundle2.pdb:
           A                         3
           B                         H
           C                        AA
           D                        AB
           E                        AC
           F                        AD
           G                        AE
           H                        AF
           I                        AG
           J                        AH
           K                        AI
           L                        AJ
           M                        AK
           N                        AL
           O                        AM
           P                        AN
           Q                        AP
           R                        AQ
           S                        AR
           T                        AS
           U                        AU
           V                        AV
           W                        AW
           X                        AX
           Y                        AY
           Z                        AZ
           a                        A0
           b                        A3
           c                        AT
           d                        AO
           e                        BB
           f                        BY
           g                        BO
           h                        BC
           i                        B5
           j                        BL
           k                        Bf
           l                        BU
           m                        Bb
           n                        Be
           o                        BE
           p                        Ba
           q                        BT
           r                        BW
           s                        Bi
           t                        BI
           u                        BR
           v                        BK
           w                        BQ
           x                        BV
           y                        Bj
           z                        BG
           0                        BD
           1                        BF
           2                        BZ
           3                        B6
           4                        BP
           5                        BM
           6                        BS
           7                        Bd
           8                        BN
           9                        Bg

9t7h-pdb-bundle3.pdb:
           A                        Bc
           B                        BJ
           C                        Bl
           D                        B4
           E                        Bk
           F                        BA
