    New chain ID            Original chain ID

7muc-pdb-bundle1.pdb:
           A                        AC
           B                        AD
           C                        AF
           D                        AG
           E                        AH
           F                        AK
           G                        AL
           H                        AM
           I                        AN
           J                        AU
           K                        AX
           L                        Ad
           M                        Af
           N                        BC
           O                        BD
           P                        BF
           Q                        BG
           R                        BH
           S                        BK
           T                        BL
           U                        BM
           V                        BN
           W                        BU
           X                        BX
           Y                        Bd
           Z                        Bf
           a                        CC
           b                        CD
           c                        CF
           d                        CG
           e                        CH
           f                        CK
           g                        CL
           h                        CM
           i                        CN
           j                        CU
           k                        CX
           l                        Cd
           m                        Cf
           n                        DC
           o                        DD
           p                        DF
           q                        DG
           r                        DH
           s                        DK
           t                        DL
           u                        DM
           v                        DN
           w                        DU
           x                        DX
           y                        Dd
           z                        Df
           0                        EC
           1                        ED
           2                        EF
           3                        EG
           4                        EH
           5                        EK
           6                        EL
           7                        EM
           8                        EN
           9                        EU

7muc-pdb-bundle2.pdb:
           A                        EX
           B                        Ed
           C                        Ef
           D                        FC
           E                        FD
           F                        FF
           G                        FG
           H                        FH
           I                        FK
           J                        FL
           K                        FM
           L                        FN
           M                        FU
           N                        FX
           O                        Fd
           P                        Ff
           Q                        GC
           R                        GD
           S                        GF
           T                        GG
           U                        GH
           V                        GK
           W                        GL
           X                        GM
           Y                        GN
           Z                        GU
           a                        GX
           b                        Gd
           c                        Gf
           d                        HC
           e                        HD
           f                        HF
           g                        HG
           h                        HH
           i                        HK
           j                        HL
           k                        HM
           l                        HN
           m                        HU
           n                        HX
           o                        Hd
           p                        Hf
           q                        IC
           r                        ID
           s                        IF
           t                        IG
           u                        IH
           v                        IK
           w                        IL
           x                        IM
           y                        IN
           z                        IU
           0                        IX
           1                        Id
           2                        If
           3                        JC
           4                        JD
           5                        JF
           6                        JG
           7                        JH
           8                        JK
           9                        JL

7muc-pdb-bundle3.pdb:
           A                        JM
           B                        JN
           C                        JU
           D                        JX
           E                        Jd
           F                        Jf
           G                        KC
           H                        KD
           I                        KF
           J                        KG
           K                        KH
           L                        KK
           M                        KL
           N                        KM
           O                        KN
           P                        KU
           Q                        KX
           R                        Kd
           S                        Kf
           T                        LC
           U                        LD
           V                        LF
           W                        LG
           X                        LH
           Y                        LK
           Z                        LL
           a                        LM
           b                        LN
           c                        LU
           d                        LX
           e                        Ld
           f                        Lf
           g                        MC
           h                        MD
           i                        MF
           j                        MG
           k                        MH
           l                        MK
           m                        ML
           n                        MM
           o                        MN
           p                        MU
           q                        MX
           r                        Md
           s                        Mf
           t                        VF
           u                        VG
           v                        VH
           w                        VX
           x                        WF
           y                        WG
           z                        WH
           0                        WX
           1                        XF
           2                        XG
           3                        XH
           4                        XX
           5                        YF
           6                        YG
           7                        YH
           8                        YX
           9                        ZF

7muc-pdb-bundle4.pdb:
           A                        ZG
           B                        ZH
           C                        ZX
