    New chain ID            Original chain ID

8k2d-pdb-bundle1.pdb:
           A                        C2

8k2d-pdb-bundle2.pdb:
           A                        C1
           B                        C4
           C                        C3
           D                        SA
           E                        SB
           F                        SC
           G                        SD
           H                        SE
           I                        SF
           J                        SG
           K                        SH
           L                        SI
           M                        SJ
           N                        SK
           O                        SL
           P                        SM
           Q                        SN
           R                        SO
           S                        SP
           T                        SQ
           U                        SR

8k2d-pdb-bundle3.pdb:
           A                        SS
           B                        ST
           C                        SU
           D                        SV
           E                        SW
           F                        SX
           G                        SY
           H                        SZ
           I                        Sa
           J                        Sb
           K                        Sc
           L                        Sd
           M                        Se
           N                        Sf
           O                        Sg
           P                        LA
           Q                        LB
           R                        LC
           S                        LD
           T                        LE
           U                        LF
           V                        LG
           W                        LH
           X                        LI
           Y                        LJ
           Z                        LK
           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                        La
           q                        Lb
           r                        Lc
           s                        Ld
           t                        Le
           u                        Lf
           v                        Lg
           w                        Lh
           x                        Li
           y                        Lj
           z                        Lk
           0                        Ll
           1                        Lm
           2                        Ln
           3                        Lo
           4                        Lp
           5                        CE
           6                        L1
           7                        P0
           8                        CD
           9                        CS
