    New chain ID            Original chain ID

7muy-pdb-bundle1.pdb:
           A                        AG
           B                        ED
           C                        EF
           D                        Eg
           E                        EH
           F                        EK
           G                        EL
           H                        EM
           I                        EN
           J                        EU
           K                        EX
           L                        Ed
           M                        Ef
           N                        FD
           O                        FF
           P                        Fg
           Q                        CC
           R                        FH
           S                        FK
           T                        FL
           U                        FM
           V                        FN
           W                        FU
           X                        FX
           Y                        Fd
           Z                        Ff
           a                        BC
           b                        BG
           c                        AF
           d                        GD
           e                        GF
           f                        Gg
           g                        GH
           h                        GK
           i                        GL
           j                        GM
           k                        GN
           l                        GU
           m                        GX
           n                        Gd
           o                        Gf
           p                        HD
           q                        GC
           r                        HF
           s                        Hg
           t                        HH
           u                        HK
           v                        HL
           w                        HM
           x                        HN
           y                        HU
           z                        HX
           0                        Hd
           1                        Hf
           2                        CG
           3                        Bg
           4                        ID
           5                        IF
           6                        Ig
           7                        IH
           8                        IK
           9                        IL

7muy-pdb-bundle2.pdb:
           A                        IM
           B                        IN
           C                        IU
           D                        IX
           E                        Id
           F                        KC
           G                        If
           H                        JD
           I                        JF
           J                        Jg
           K                        JH
           L                        JK
           M                        JL
           N                        JM
           O                        JN
           P                        JU
           Q                        JX
           R                        Jd
           S                        Jf
           T                        DG
           U                        AH
           V                        KD
           W                        KF
           X                        Kg
           Y                        KH
           Z                        KK
           a                        KL
           b                        KM
           c                        KN
           d                        KU
           e                        KX
           f                        Kd
           g                        Kf
           h                        LD
           i                        LF
           j                        Lg
           k                        LH
           l                        LK
           m                        LL
           n                        LM
           o                        LN
           p                        LU
           q                        LX
           r                        Ld
           s                        Lf
           t                        AK
           u                        EG
           v                        MD
           w                        MF
           x                        Mg
           y                        MH
           z                        MK
           0                        ML
           1                        MM
           2                        MN
           3                        MU
           4                        MX
           5                        Md
           6                        Mf
           7                        VF
           8                        VG
           9                        VH

7muy-pdb-bundle3.pdb:
           A                        VX
           B                        WF
           C                        WG
           D                        WH
           E                        WX
           F                        XF
           G                        XG
           H                        XH
           I                        XX
           J                        YF
           K                        AL
           L                        FG
           M                        YG
           N                        YH
           O                        DC
           P                        YX
           Q                        ZF
           R                        ZG
           S                        ZH
           T                        ZX
           U                        AM
           V                        AN
           W                        AU
           X                        AX
           Y                        Ad
           Z                        Af
           a                        BD
           b                        BF
           c                        BH
           d                        BK
           e                        BL
           f                        BM
           g                        BN
           h                        BU
           i                        BX
           j                        Bd
           k                        Bf
           l                        EC
           m                        GG
           n                        FC
           o                        HC
           p                        IC
           q                        JC
           r                        LC
           s                        MC
           t                        CD
           u                        CF
           v                        Cg
           w                        CH
           x                        CK
           y                        CL
           z                        CM
           0                        CN
           1                        CU
           2                        CX
           3                        Cd
           4                        Cf
           5                        DD
           6                        DF
           7                        Dg
           8                        DH
           9                        DK

7muy-pdb-bundle4.pdb:
           A                        HG
           B                        IG
           C                        JG
           D                        KG
           E                        LG
           F                        MG
           G                        NG
           H                        OG
           I                        PG
           J                        AC
           K                        DL
           L                        DM
           M                        DN
           N                        DU
           O                        DX
           P                        Dd
           Q                        Ag
           R                        Df
           S                        AD
