    New chain ID            Original chain ID

6tmj-pdb-bundle1.pdb:
           A                         Q
           B                         K
           C                        g2
           D                        d2
           E                        e2
           F                        H2
           G                        I2
           H                        J2
           I                        K2
           J                        M2
           K                        N2
           L                        O2
           M                        P2
           N                        Q2
           O                        L2
