    New chain ID            Original chain ID

9oad-pdb-bundle1.pdb:
           A                        Aa
           B                        Ab
           C                        Ac
           D                        Ad
           E                        Ae
           F                        Af
           G                        Ag
           H                        Ah
           I                        Ai
           J                        Aj
           K                        Ak
           L                        Al
           M                        Am
           N                        An
           O                        Ao
           P                        Ap
           Q                        Aq
           R                        Ar
           S                        As
           T                        At
           U                        Ba
           V                        Bb
           W                        Bc
           X                        Bd
           Y                        Be
           Z                        Bf
           a                        Bg
           b                        Bh
           c                        Bi
           d                        Bj
           e                        Bk
           f                        Bl
           g                        Bm
           h                        Bn
           i                        Bo
           j                        Bp
           k                        Bq
           l                        Br
           m                        Bs
           n                        Bt
           o                        Ca
           p                        Cb
           q                        Cc
           r                        Cd
           s                        Ce
           t                        Da
           u                        Db
           v                        Dc
           w                        Dd
           x                        De
           y                        Df
           z                        Dg
           0                        Dh
           1                        Di
           2                        Dj

9oad-pdb-bundle2.pdb:
           A                        Dk
           B                        Dl
           C                        Ea
           D                        Eb
           E                        Ec
           F                        Ed
           G                        Ee
           H                        Ef
           I                        Eg
           J                        Eh
           K                        Ei
           L                        Ej
           M                        Ek
           N                        El
           O                        Ja
           P                        Jb
           Q                        Jc
           R                        Jd
           S                        Je
           T                        Jf
           U                        Jg
           V                        Jh
           W                        Ji
           X                        Jj
