    New chain ID            Original chain ID

8rl2-pdb-bundle1.pdb:
           A                        L5
           B                        L7
           C                        L8
           D                        LA
           E                        LB
           F                        LC
           G                        LD
           H                        LE
           I                        LF
           J                        LG
           K                        LH
           L                        LJ
           M                        LL
           N                        LM

8rl2-pdb-bundle2.pdb:
           A                        LN
           B                        LO
           C                        LP
           D                        LQ
           E                        LR
           F                        LS
           G                        LT
           H                        LU
           I                        LV
           J                        LX
           K                        LY
           L                        LZ
           M                        La
           N                        Lc
           O                        Ld
           P                        Le
           Q                        Lf
           R                        Lg
           S                        Lh
           T                        Li
           U                        Lj
           V                        Lk
           W                        Ll
           X                        Lp
           Y                        Lr
           Z                        Lt
           a                        CA
           b                        CB
           c                        CC
           d                        CD
           e                        CE
           f                        CF
           g                        CG
           h                        CH
           i                        CI
           j                        CJ
           k                        CK
           l                        CL
