    New chain ID            Original chain ID

7aor-pdb-bundle1.pdb:
           A                         u
           B                         s
           C                         r
           D                         n
           E                         h
           F                         e
           G                        az
           H                        ay
           I                        ax
           J                        aw
           K                        au
           L                        ak
           M                        aj
           N                        ag
           O                        af
           P                        ae
           Q                         l
           R                        ac
           S                        ab
           T                        ad
           U                         m
           V                         i
           W                         f
           X                         c
           Y                         d
           Z                        ba
           a                        av
           b                        at
           c                        ar
           d                        aq
           e                        ap
           f                        ao

7aor-pdb-bundle2.pdb:
           A                        ai
           B                        an
           C                         z
           D                         y
           E                         x
           F                         w
           G                         v
           H                        bb
           I                         t
           J                        al
           K                         q
           L                         p
           M                        Ca
           N                         g
           O                         j
           P                         b
           Q                        bd
           R                         a
           S                        bc
           T                        aa
           U                         k
           V                        be
           W                        as
           X                         A
           Y                         2
