    New chain ID            Original chain ID

6xu8-pdb-bundle1.pdb:
           A                        CO
           B                        CL
           C                        CV
           D                        CM
           E                        Ca
           F                        CN
           G                        CI
           H                        CD
           I                        CQ
           J                        CR
           K                        CA
           L                        CS
           M                        CT
           N                        CP
           O                        CX
           P                        CY
           Q                        CZ
           R                        Cr
           S                        Ch
           T                        Cb
           U                        CB
           V                        CF
           W                        Cc
           X                        Ce
           Y                        Cf
           Z                        Ci
           a                        Ck
           b                        Cl
           c                        CC
           d                        Cm
           e                        Cn
           f                        Cp
           g                        Co
           h                        CJ
           i                        CH
           j                        CE
           k                        CG
           l                        A9
           m                        A7
           n                        A8
           o                        Ag
           p                        AU
           q                        AO
           r                        AX
           s                        AM
           t                        Ad
           u                        AN
           v                        AL
           w                        AR
           x                        AP
           y                        AB
           z                        AA
           0                        AV
           1                        AY
           2                        AZ
           3                        Aa
           4                        Ab
           5                        AD
           6                        Ae
           7                        Af
           8                        AJ
           9                        AE

6xu8-pdb-bundle2.pdb:
           A                        AC
           B                        AG
           C                        AH
           D                        AI
           E                        AQ
           F                        Cz
           G                        A5

6xu8-pdb-bundle3.pdb:
           A                        B2
           B                        AW
           C                        AT
           D                        AK
           E                        AF
           F                        Ac
           G                        CU
           H                        Cj
           I                        CW
           J                        Cg
           K                        Cd
           L                        AS
