    New chain ID            Original chain ID

8apo_1-pdb-bundle1.pdb:
           A                        Aa
           B                        Ab
           C                        Ac
           D                        Ad
           E                        Ae
           F                        Af
           G                        Ah
           H                        Ai
           I                        Aj
           J                        Ak
           K                        Al
           L                        Am
           M                        An
           N                        Ao
           O                        Ap
           P                        Aq
           Q                        Ar
           R                        As
           S                        At
           T                        Au
           U                        Av
           V                        Aw
           W                        Ax
           X                        Ay
           Y                        Az
           Z                        AA
           a                        AB
           b                        AC
           c                        AD
           d                        AE
           e                        AF
           f                        AG
           g                        AH
           h                        AI
           i                        AJ
           j                        AK
           k                        AL
           l                        AM
           m                        AN
           n                        AO
           o                        Xa
           p                        Xb
           q                        Xc
           r                        Xd
           s                        Xe
           t                        Xf
           u                        Xg
           v                        Xh
           w                        Xj
           x                        Ba
           y                        Bb
           z                        Bc
           0                        Bd
           1                        Be
           2                        Bf
           3                        Bg
           4                        Bh
           5                        Bi
           6                        Bj
           7                        Bk
           8                        Bl
           9                        Bm
8apo_1-pdb-bundle2.pdb:
           A                        Bn
           B                        Bo
           C                        Bp
           D                        Bq
8apo_1-pdb-bundle3.pdb:
           A                        Bq
           B                        Br
           C                        Bs
           D                        Bt
           E                        Bu
           F                        Bv
           G                        Bw
           H                        Bx
           I                        By
           J                        Bz
           K                        BA
           L                        BB
           M                        BC
           N                        BD
           O                        BE
           P                        BF
           Q                        Ya
           R                        Yb
           S                        Yc
           T                        Yd
           U                        Ye
           V                        Yf
           W                        Yg
           X                        Yh
           Y                        Yi
           Z                        Yj
           a                        Yk
           b                        Yl
           c                        Ub
           d                        Ua
           e                        Ud
           f                        Ue
           g                        Uf
           h                        Ug
           i                        Uh
