    New chain ID            Original chain ID

8apn-pdb-bundle1.pdb:
           A                        A1
           B                        A2
           C                        A3
           D                        A4
           E                        A5
           F                        A6
           G                        A7
           H                        A8
           I                        A9
           J                        Aa
           K                        Ab
           L                        Ac
           M                        Ad
           N                        Ae
           O                        Af
           P                        Ah
           Q                        Ai
           R                        Aj
           S                        Ak
           T                        Al
           U                        Am
           V                        An
           W                        Ao
           X                        Ap
           Y                        Aq
           Z                        Ar
           a                        As
           b                        At
           c                        Au
           d                        Av
           e                        Aw
           f                        Ax
           g                        Ay
           h                        Az
           i                        AA
           j                        AB
           k                        AC
           l                        AD
           m                        AE
           n                        AF
           o                        AG
           p                        AH
           q                        AI
           r                        AJ
           s                        AK
           t                        AL
           u                        AM
           v                        AN
           w                        AO
           x                        Xa
           y                        Xb
           z                        Xc
           0                        Xd

8apn-pdb-bundle2.pdb:
           A                        Xe
           B                        Xf
           C                        Xg
           D                        Xh
           E                        Xi
           F                        Xj
           G                        B1
           H                        B2
           I                        B3
           J                        B4
           K                        Ba
           L                        Bb
           M                        Bc
           N                        Bd
           O                        Be
           P                        Bf
           Q                        Bg
           R                        Bh
           S                        Bi
           T                        Bj
           U                        Bk
           V                        Bl
           W                        Bm
           X                        Bn
           Y                        Bo
           Z                        Bp
           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
           0                        Yk
           1                        Yl
           2                        C1
           3                        C3
           4                        Ub
           5                        Ua
           6                        Ud
           7                        Ue
           8                        Uf
           9                        Ug

8apn-pdb-bundle3.pdb:
           A                        Uh
           B                        Ui
           C                        Uj
           D                        Uk
           E                        Ul
           F                        Um
