    New chain ID            Original chain ID

9pkd_1-pdb-bundle1.pdb:
           A                        CI
           B                        LA
           C                        LB
           D                        LC
           E                        LD
           F                        LE
           G                        LF
           H                        LG
           I                        LH
           J                        LI
           K                        LJ
           L                        LL
           M                        LM
           N                        LN
           O                        LO
           P                        LP
           Q                        LQ
           R                        LR
           S                        LS
           T                        LT
           U                        LU
           V                        LV
           W                        LW
           X                        LX
           Y                        LY
           Z                        LZ
           a                        La
           b                        Lb
           c                        Lc
           d                        Ld
           e                        Le
           f                        Lf
           g                        Lg
           h                        Lh
           i                        Li
           j                        Lj
           k                        Lk
           l                        Ll
           m                        Lm
           n                        Lo
           o                        Lp
           p                        Lr
           q                        Ls
           r                        Lt
           s                        SA
           t                        SB
           u                        SC
           v                        SE
           w                        SG
           x                        SH
           y                        SI
           z                        SJ
           0                        SL
           1                        SN
           2                        SO
           3                        SV
           4                        SW
           5                        SX
           6                        SY
           7                        Sa
           8                        Sb
           9                        Se
9pkd_1-pdb-bundle2.pdb:
           A                        SR
           B                        SD
           C                        SF
           D                        SK
           E                        SM
           F                        SP
           G                        SQ
           H                        SS
           I                        ST
           J                        SU
           K                        SZ
           L                        Sc
           M                        Sd
           N                        Sf
           O                        Sg
