    New chain ID            Original chain ID

8flf-pdb-bundle1.pdb:
           A                        BE
           B                        L1
           C                        L3
           D                        L4
           E                        L5
           F                        L6
           G                        L7
           H                        L8
           I                        L9
           J                        LA
           K                        LB
           L                        LC
           M                        LD
           N                        LE
           O                        LF
           P                        LG
           Q                        LH
           R                        LI
           S                        LJ
           T                        LK

8flf-pdb-bundle2.pdb:
           A                        LL
           B                        LM
           C                        LN
           D                        LO
           E                        LP
           F                        LQ
           G                        LR
           H                        LS
           I                        LT
           J                        LU
           K                        LV
           L                        LW
           M                        LX
           N                        LY
           O                        LZ
           P                        NK
           Q                        NP
           R                        SA
           S                        SB
           T                        SC
           U                        SD
           V                        SE
           W                        SF
           X                        SG
           Y                        SK
           Z                        SQ
           a                        SR
           b                        SV
