    New chain ID            Original chain ID

9jb1-pdb-bundle1.pdb:
           A                        FO
           B                        FP
           C                        FN
           D                        FM
           E                        FL
           F                        FQ
           G                        FK
           H                        FJ
           I                        FI
           J                        FH
           K                        FG
           L                        FF
