    New chain ID            Original chain ID

8rdv-pdb-bundle1.pdb:
           A                         B
           B                         F
           C                         H
           D                        Z2
           E                        R3
           F                        A4
           G                        E5
           H                        L6
           I                        F7
           J                        D8
           K                        E9
           L                        aA
           M                        MB
           N                        UC
           O                        WD
           P                        XE
           Q                        RF
           R                        FG
           S                        VH
           T                        TI
           U                        fJ
           V                        HK
           W                        OL
           X                        MM
           Y                        PO
           Z                        SP
           a                        BQ
           b                        GR
           c                        GS
           d                        CT
           e                        KU
           f                        NV
           g                        YW
           h                        IX
           i                        JY
           j                        QZ
           k                        Ba
           l                        Qb
           m                        Nc
           n                        Kd
           o                        Je
           p                        Af
           q                        Lg

8rdv-pdb-bundle2.pdb:
           A                        dh
           B                        Oi
           C                        Pj
           D                        bk
           E                        Cl
           F                        Dm
           G                        Sn
           H                        To
           I                        ep
           J                         V
           K                         Y
           L                        C1
           M                        iN
