    New chain ID            Original chain ID

7rr5-pdb-bundle1.pdb:
           A                        C1
           B                        C4
           C                        C3
           D                        LA
           E                        LB
           F                        LC
           G                        LD
           H                        LE
           I                        LF
           J                        LG
           K                        LH
           L                        LI
           M                        LJ
           N                        LL
           O                        LM
           P                        LN

7rr5-pdb-bundle2.pdb:
           A                        LO
           B                        LP
           C                        LQ
           D                        LR
           E                        LS
           F                        LT
           G                        LU
           H                        LV
           I                        LW
           J                        LX
           K                        LY
           L                        LZ
           M                        La
           N                        Lb
           O                        Lc
           P                        Ld
           Q                        Le
           R                        Lf
           S                        Lg
           T                        Lh
           U                        Li
           V                        Lj
           W                        Lk
           X                        Ll
           Y                        Lm
           Z                        Ln
           a                        Lo
           b                        Lp
           c                        P0
           d                        P2
           e                        C2
           f                        SA
           g                        SB
           h                        SC
           i                        SD
           j                        SE
           k                        SF
           l                        SG
           m                        SH
           n                        SI
           o                        SJ
           p                        SK
           q                        SL
           r                        SM
           s                        SN
           t                        SO
           u                        SP
           v                        SQ
           w                        SR
           x                        SS
           y                        ST
           z                        SU
           0                        SV
           1                        SW
           2                        SX
           3                        SY
           4                        SZ
           5                        Sa
           6                        Sb

7rr5-pdb-bundle3.pdb:
           A                        Sc
           B                        Sd
           C                        Se
           D                        Sf
           E                        Sg
           F                         A
           G                         P
           H                         m
           I                         5
           J                         R
           K                         T
           L                        L1
