    New chain ID            Original chain ID

7zjw-pdb-bundle1.pdb:
           A                         E
           B                         F
           C                         I
           D                         S
           E                         B
           F                        L5
           G                        L7
           H                        L8

7zjw-pdb-bundle2.pdb:
           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                        LQ
           N                        LR
           O                        LS
           P                        LT
           Q                        LU
           R                        LV
           S                        LW
           T                        LX
           U                        LY
           V                        LZ
           W                        La
           X                        Lb
           Y                        Lc
           Z                        Ld
           a                        Le
           b                        Lf
           c                        Lg
           d                        Lh
           e                        Li
           f                        Lj
           g                        Lk
           h                        Ll
           i                        Lm
           j                        Ln
           k                        Lo
           l                        Lp
           m                        Lq
           n                        Lr
           o                        Ls
           p                        Lt
           q                        Lx
           r                        S2
           s                        SB
           t                        SC
           u                        SD
           v                        SE
           w                        SF
           x                        SG
           y                        SH

7zjw-pdb-bundle3.pdb:
           A                        SL
           B                        SM
           C                        SN
           D                        SO
           E                        SP
           F                        SQ
           G                        SR
           H                        SS
           I                        ST
           J                        SU
           K                        SV
           L                        SW
           M                        SX
           N                        SY
           O                        SZ
           P                        Sa
           Q                        Sb
           R                        Sc
           S                        Sd
           T                        Se
           U                        Sf
           V                        Sg
           W                        Sh
           X                        Si
           Y                        Sj
           Z                        Sk
           a                        Sl
