    New chain ID            Original chain ID

9pn5_1-pdb-bundle1.pdb:
           A                        BA
           B                        BB
           C                        BC
           D                        BE
           E                        BG
           F                        BH
           G                        BI
           H                        BJ
           I                        BL
           J                        BN
           K                        BO
           L                        BV
           M                        BW
           N                        BX
           O                        BY
           P                        Ba
           Q                        Bb
           R                        Be
           S                        BD
           T                        BF
           U                        BK
           V                        BP
           W                        BQ
           X                        BR
           Y                        BS
           Z                        BT
           a                        BU
           b                        BZ
           c                        Bc
           d                        Bd
           e                        Bg
           f                        Bf
           g                        BM
           h                        AA
           i                        AB
           j                        AC
           k                        AD
           l                        AE
           m                        AF
           n                        AG
           o                        AH
           p                        AI
           q                        AJ
           r                        AL
           s                        AM
           t                        AN
           u                        AO
           v                        AP
           w                        AQ
           x                        AR
           y                        AS
           z                        AT
           0                        AU
           1                        AV
           2                        AW
           3                        AX
           4                        AY
           5                        AZ
           6                        Aa
           7                        Ab
           8                        Ac
           9                        Ad
9pn5_1-pdb-bundle2.pdb:
           A                        Ae
           B                        Af
           C                        Ag
           D                        Ah
           E                        Ai
           F                        Aj
           G                        Ak
           H                        Al
           I                        Am
           J                        Ao
           K                        Ap
