    New chain ID            Original chain ID

9d94-pdb-bundle1.pdb:
           A                        Fa
           B                        Fb
           C                        Fc
           D                        Fd
           E                        Fe
           F                        Ff
           G                        Fg
           H                        Fh
           I                        Fi
           J                        Fj
           K                        Fk
           L                        Fl
           M                        Ga
           N                        Gb
           O                        Gc
           P                        Gd
           Q                        Ge
           R                        Gf
           S                        Gg
           T                        Gh

9d94-pdb-bundle2.pdb:
           A                        Gi
           B                        Gj
           C                        Gk
           D                        Gl
           E                        Ha
           F                        Hb
           G                        Hc
           H                        Hd
           I                        He
           J                        Hf
           K                        Ia
           L                        Ib
           M                        Ic
           N                        Id
           O                        Ie
           P                        If
           Q                        Ja
           R                        Jb
           S                        Jc
           T                        Jd
           U                        Je
           V                        Jf
           W                        Jg
           X                        Jh
           Y                        Ji
           Z                        Jj
           a                        Jk
           b                        Jl
