    New chain ID            Original chain ID

9pbe-pdb-bundle1.pdb:
           A                        CD
           B                        CI
           C                        L5
           D                        L7
           E                        L8
           F                        LA
           G                        LB
           H                        LC
           I                        LD

9pbe-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                        Pt
           p                        S2
           q                        SA
           r                        SB
           s                        SC
           t                        SD
           u                        SE
           v                        SF
           w                        SG
           x                        SH

9pbe-pdb-bundle3.pdb:
           A                        SI
           B                        SJ
           C                        SK
           D                        SL
           E                        SM
           F                        SN
           G                        SO
           H                        SP
           I                        SQ
           J                        SR
           K                        SS
           L                        ST
           M                        SU
           N                        SV
           O                        SW
           P                        SX
           Q                        SY
           R                        SZ
           S                        Sa
           T                        Sb
           U                        Sc
           V                        Sd
           W                        Se
           X                        Sf
           Y                        Sg
