    New chain ID            Original chain ID

9fxo-pdb-bundle1.pdb:
           A                        L1
           B                        L2
           C                        L3
           D                        L4
           E                        L5
           F                        L6
           G                        L7
           H                        L8
           I                        LA
           J                        LB
           K                        LC
           L                        LD
           M                        LE
           N                        LF
           O                        LG
           P                        LH
           Q                        LI
           R                        LJ

9fxo-pdb-bundle2.pdb:
           A                        LK
           B                        LL
           C                        LM
           D                        LN
           E                        LO
           F                        LP
           G                        LQ
           H                        LR
           I                        LS
           J                        LT
           K                        LU
           L                        LV
           M                        LW
           N                        LX
           O                        LY
           P                        LZ
           Q                        La
           R                        Lb
           S                        Lc
           T                        Ld
           U                        Le
           V                        Lf
           W                        Lg
           X                        Lh
           Y                        Li
           Z                        Lj
           a                        Lk
           b                        Ll
           c                        Lm
           d                        Ln
           e                        Lo
           f                        Lp
           g                        S1
           h                        S2
           i                        S3
           j                        S4
           k                        SA
           l                        SB
           m                        SC
           n                        SD
           o                        SE
           p                        SF
           q                        SG
           r                        SH
           s                        SI
           t                        SJ
           u                        SK
           v                        SL
           w                        SM
           x                        SN

9fxo-pdb-bundle3.pdb:
           A                        SO
           B                        SP
           C                        SQ
           D                        SR
           E                        SS
           F                        ST
           G                        SU
           H                        SV
           I                        SW
           J                        SX
           K                        SY
           L                        SZ
           M                        Sa
           N                        Sb
           O                        Sc
           P                        Sd
           Q                        Se
           R                        Sf
           S                        Sg
           T                        Sh
           U                        S5
