    New chain ID            Original chain ID

6t7t-pdb-bundle1.pdb:
           A                        LA
           B                        SA
           C                        LB
           D                        SB
           E                        C2
           F                        SP
           G                        SC
           H                        SD
           I                        SE
           J                        SF
           K                        SG
           L                        SH
           M                        SI
           N                        SJ
           O                        SK
           P                        SL
           Q                        SM
           R                        SN
           S                        SO
           T                        SQ
           U                        SR
           V                        SS
           W                        ST
           X                        SU
           Y                        SV
           Z                        SW
           a                        SX
           b                        SY
           c                        SZ
           d                        Sa
           e                        Sb
           f                        Sd
           g                        Se
           h                        Sf
           i                        Sg
           j                        Sc
           k                        C4
           l                        C3
           m                        LC
           n                        LD
           o                        LE
           p                        LF
           q                        LG
           r                        LH
           s                        LI

6t7t-pdb-bundle2.pdb:
           A                        LJ
           B                        LL
           C                        LM
           D                        LN
           E                        LO
           F                        LP
           G                        LQ
           H                        LR
           I                        LS
           J                        LT
           K                        LU
           L                        LV
           M                        LW
           N                        LX
           O                        LY
           P                        LZ
           Q                        La
           R                        Lb
           S                        Lc
           T                        Ld
           U                        Le
           V                        Lf
           W                        Lg
           X                        Lh
           Y                        Li
           Z                        Lj
           a                        Lk
           b                        Ll
           c                        Lm
           d                        Ln
           e                        Lo
           f                        Lp
           g                        C1
           h                         5

6t7t-pdb-bundle3.pdb:
           7                         7
           6                         6
           A                         A
