    New chain ID            Original chain ID

8pv7-pdb-bundle1.pdb:
           A                        C1
           B                        C2
           C                        C3
           D                        C4
           E                        CB
           F                        CF
           G                        CH
           H                        CI
           I                        CJ
           J                        CK
           K                        CL
           L                        CM
           M                        CN
           N                        CO
           O                        CQ
           P                        Lq
           Q                        Cb

8pv7-pdb-bundle2.pdb:
           A                        Cd
           B                        Ce
           C                        Cf
           D                        Cg
           E                        Ch
           F                        Cz
           G                        LA
           H                        LB
           I                        LC
           J                        LD
           K                        LE
           L                        LF
           M                        LG
           N                        LH
           O                        LJ
           P                        LK
           Q                        LL
           R                        LM
           S                        LN
           T                        LO
           U                        LP
           V                        LQ
           W                        LR
           X                        LS
           Y                        LT
           Z                        LU
           a                        LV
           b                        LX
           c                        LY
           d                        LZ
           e                        La
           f                        Lc
           g                        Ld
           h                        Le
           i                        Lf
           j                        Lg
           k                        Lh
           l                        Li
           m                        Lj
           n                        Lk
           o                        Ll
           p                        Lp
