    New chain ID            Original chain ID

9ze2-pdb-bundle1.pdb:
           A                         2
           B                         H
           C                         R
           D                         A
           E                        B1
           F                        B2
           G                        B3
           H                        B4
           I                        B5
           J                        B6
           K                        A2
           L                        A3
