    New chain ID            Original chain ID

6lgl-pdb-bundle1.pdb:
           A                         A
           D                         D
           M                         M
           V                         V
           N                         N
           W                         W
           O                         O
           X                         X
           P                         P
           Y                         Y
           Q                         Q
           Z                         Z
           R                         R
           a                         a
           S                         S
           b                         b

6lgl-pdb-bundle2.pdb:
           T                         T
           c                         c
           U                         U
           d                         d
           B                         B
           H                         H
           C                         C
           I                         I
           E                         E
           J                         J
           F                         F
           K                         K
           G                         G
           L                         L
           e                         e
           j                         j
           o                         o
           f                         f
           k                         k
           p                         p
           g                         g
           l                         l
           q                         q

6lgl-pdb-bundle3.pdb:
           h                         h
           m                         m
           r                         r
           i                         i
           n                         n
           s                         s
           z                         z
