    New chain ID            Original chain ID

9sre-pdb-bundle1.pdb:
           A                         3
           B                         4
           C                         H
           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                        AP
           S                        AQ
           T                        AR
           U                        AS
           V                        AU
           W                        AV
           X                        AW
           Y                        AX
           Z                        AY
           a                        AZ
           b                        A0
           c                        A3
           d                        AT
           e                        AO
           f                        BB
           g                        BY
           h                        BO
           i                        BC
           j                        B5
           k                        BL
           l                        Bf
           m                        BU
           n                        Bb
           o                        Be
           p                        BE
           q                        Ba
           r                        BT
           s                        BW
           t                        Bi
           u                        BI
           v                        BR
           w                        BK
           x                        BQ
           y                        BV
           z                        Bj
           0                        BG
           1                        BD
           2                        BF
           3                        BZ
           4                        B6
           5                        BP
           6                        BM
           7                        BS
           8                        Bd
           9                        BN

9sre-pdb-bundle2.pdb:
           A                        Bg
           B                        Bc
           C                        BJ
           D                        Bl
           E                        B4
           F                        Bk
           G                        BA
           H                         1

9sre-pdb-bundle3.pdb:
           2                         2
