    New chain ID            Original chain ID

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

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