    New chain ID            Original chain ID

9p7k-pdb-bundle1.pdb:
           A                        CI
           B                        Pt
           C                        Et
           D                        L5
           E                        L7
           F                        L8
           G                        LA
           H                        LB
           I                        LC
           J                        LD

9p7k-pdb-bundle2.pdb:
           A                        LE
           B                        LF
           C                        LG
           D                        LH
           E                        LI
           F                        LJ
           G                        LL
           H                        LM
           I                        LN
           J                        LO
           K                        LP
           L                        LQ
           M                        LR
           N                        LS
           O                        LT
           P                        LU
           Q                        LV
           R                        LW
           S                        LX
           T                        LY
           U                        LZ
           V                        La
           W                        Lb
           X                        Lc
           Y                        Ld
           Z                        Le
           a                        Lf
           b                        Lg
           c                        Lh
           d                        Li
           e                        Lj
           f                        Lk
           g                        Ll
           h                        Lm
           i                        Ln
           j                        Lo
           k                        Lp
           l                        Lr
           m                        Ls
           n                        Lt
           o                        SD
           p                        SF
           q                        SK
           r                        SM
           s                        SP
           t                        SQ
           u                        SR
           v                        SS
           w                        ST
           x                        SU
           y                        SZ
           z                        Sc
           0                        Sd
           1                        Sf
           2                        Sg
           3                        SA
           4                        SB
           5                        SC
           6                        SE
           7                        SG
           8                        SH
           9                        SI

9p7k-pdb-bundle3.pdb:
           A                        SJ
           B                        SL
           C                        SN
           D                        SO
           E                        SV
           F                        SW
           G                        SX
           H                        SY
           I                        Sa
           J                        Sb
           K                        Se
           L                        S2
           M                        AT
           N                        CF
