    New chain ID            Original chain ID

9azm-pdb-bundle1.pdb:
           A                        CD
           B                        SD
           C                        SF
           D                        SK
           E                        SP
           F                        SQ
           G                        SS
           H                        ST
           I                        SU
           J                        Sc
           K                        Sd
           L                        Sg
           M                        SM
           N                        SZ
           O                        Sf
           P                        S2
