    New chain ID            Original chain ID

8ia0-pdb-bundle1.pdb:
           A                        C1
           B                        C2
           C                        CA
           D                        CB
           E                        CC
           F                        CD
           G                        CE
           H                        CF
           I                        CG
           J                        CH
           K                        CI
           L                        CJ
           M                        CK

8ia0-pdb-bundle2.pdb:
           A                        CL
           B                        CM
           C                        CN
           D                        CO
           E                        CP
           F                        CQ
           G                        CR
           H                        CS
           I                        CT
           J                        CU
           K                        CV
           L                        CW
           M                        CX
           N                        CY
           O                        CZ
           P                        Ca
           Q                        Cz
           R                        LA
           S                        LB
           T                        LC
           U                        LE
           V                        LF
           W                        LG
           X                        LH
           Y                        LK
           Z                        LL
           a                        LM
           b                        LN
           c                        LO
           d                        LP
           e                        LQ
           f                        LR
           g                        LS
           h                        LT
           i                        LU
           j                        LV
           k                        LX
           l                        LY
           m                        LZ
           n                        Lc
           o                        Ld
           p                        Le
           q                        Lf
           r                        Lg
           s                        Lh
           t                        Li
           u                        Lj
           v                        Lk
           w                        Lp
           x                        Ll
           y                        Lq
