    New chain ID            Original chain ID

8ohd-pdb-bundle1.pdb:
           A                         5
           B                         7
           C                         8
           D                         A
           E                         B
           F                         C
           G                         D
           H                         K
           I                        LA
           J                        LB

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