    New chain ID            Original chain ID

9spi-pdb-bundle1.pdb:
           A                        At
           B                        Et
           C                        L5
           D                        L7
           E                        L8
           F                        LA
           G                        LB
           H                        LC
           I                        LD

9spi-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                        Mr
           n                        Pt
           o                        S2
           p                        SA
           q                        SB
           r                        SC
           s                        SD
           t                        SE
           u                        SF
           v                        SG
           w                        SH
           x                        SI
           y                        SJ
           z                        SK
           0                        SL
           1                        SM

9spi-pdb-bundle3.pdb:
           A                        SN
           B                        SO
           C                        SP
           D                        SQ
           E                        SR
           F                        SS
           G                        ST
           H                        SU
           I                        SV
           J                        SW
           K                        SX
           L                        SY
           M                        SZ
           N                        Sa
           O                        Sb
           P                        Sc
           Q                        Sd
           R                        Se
           S                        Sf
           T                        Sg
