    New chain ID            Original chain ID

23ar-pdb-bundle1.pdb:
           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                        LN
           O                        LO
           P                        LP
           Q                        LQ

23ar-pdb-bundle2.pdb:
           A                        LR
           B                        LS
           C                        LT
           D                        LU
           E                        LV
           F                        LW
           G                        LX
           H                        LY
           I                        LZ
           J                        La
           K                        Lb
           L                        Lc
           M                        Ld
           N                        Le
           O                        Lf
           P                        Lg
           Q                        Lh
           R                        Li
           S                        Lj
           T                        Lk
           U                        Ll
           V                        Lm
           W                        Ln
           X                        Lo
           Y                        Lp
           Z                        Lq
           a                        Lr
           b                        mR
           c                        Cc
           d                        S2
           e                        SA
           f                        SB
           g                        SC
           h                        SD
           i                        SE
           j                        SF
           k                        SG
           l                        SH
           m                        SI
           n                        SJ
           o                        SK
           p                        SL
           q                        SM
           r                        SN
           s                        SO
           t                        SP
           u                        SQ
           v                        SR
           w                        SS
           x                        ST
           y                        SU
           z                        SV
           0                        SW
           1                        SX
           2                        SY
           3                        SZ
           4                        Sa
           5                        Sb
           6                        Sc
           7                        Sd

23ar-pdb-bundle3.pdb:
           A                        Se
           B                        Sf
           C                        Sg
           D                        Bb
