    New chain ID            Original chain ID

6n09-pdb-bundle1.pdb:
           A                         A
           B                         B
           C                         C
           D                         D
           E                         E
           F                         F
           G                        GA
           H                        GB
           I                        GC
           J                        GD
           K                        GE
           L                        GF
           M                        HA
           N                        HB
           O                        HC
           P                        HD
           Q                        HE
           R                        HF
           S                        IA
           T                        IB
           U                        IC
           V                        ID
           W                        IE
           X                        IF
           Y                        JA
           Z                        JB
           a                        JC
           b                        JD
           c                        JE
           d                        JF
           e                        KA
           f                        KB
           g                        KC
           h                        KD
           i                        KE
           j                        KF
           k                        LA
           l                        LB
           m                        LC
           n                        LD
           o                        LE
           p                        LF
           q                         G
           r                         H
           s                         I
           t                         J
           u                         K
           v                         L
           w                         M
           x                         N
           y                         O
           z                         P
           0                         Q
           1                         R
           2                         S
           3                         T
           4                         U
           5                         V
           6                         W
           7                         X
