    New chain ID            Original chain ID

3jc8-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                        Au
           V                        Av
           W                        Aw
           X                        Ax
           Y                        Ay
           Z                        Az
           a                        A1
           b                        A2
           c                        A3
           d                        A4
           e                        A5
           f                        A6
           g                        A7
           h                        A8
           i                        A9
           j                        Ba
           k                        Bb
           l                        Bc
           m                        Bd
           n                        Be
           o                        Bf
           p                        Ca
           q                        Cb
           r                        Na
           s                        Oa
           t                        Ma
           u                        Nb
           v                        Ob
           w                        Mb
           x                        Nc
           y                        Oc
           z                        Mc
           0                        Nd
           1                        Od
           2                        Md
           3                        Ne
           4                        Oe
           5                        Me
           6                        Nf
           7                        Of
           8                        Mf
           9                        Ng

3jc8-pdb-bundle2.pdb:
           A                        Og
           B                        Mg
           C                        Nh
           D                        Oh
           E                        Mh
           F                        Ni
           G                        Oi
           H                        Mi
           I                        Nj
           J                        Oj
           K                        Mj
           L                        Nk
           M                        Ok
           N                        Mk
           O                        Nl
           P                        Ol
           Q                        Ml
           R                        Qa
           S                        Pa
           T                        Qb
           U                        Pb
           V                        Qc
           W                        Pc
           X                        Qd
           Y                        Pd
           Z                        Qe
           a                        Pe
           b                        Qf
           c                        Pf
           d                        Qg
           e                        Pg
           f                        Qh
           g                        Ph
           h                        Qi
           i                        Pi
           j                        Qj
           k                        Pj
           l                        Qk
           m                        Pk
           n                        Ql
           o                        Pl
           p                        Ta
           q                        Tb
           r                        Tc
           s                        Td
           t                        Te
           u                        Tf
           v                        Tg
           w                        Th
           x                        Ti
           y                        Tj
           z                        Tk
           0                        Tl
