    New chain ID            Original chain ID

8v3t-pdb-bundle1.pdb:
           D                         D
           A                         A
           C                         C
           a                         a
           B                         B
           E                         E
           b                         b
           V                         V
           M                         M
           S                         S
           k                         k
           P                         P
           Y                         Y
           n                         n
           W                         W
           N                         N
           T                         T
           l                         l
           Q                         Q
           Z                         Z
           o                         o
           I                         I
           F                         F
           H                         H
           K                         K
           G                         G
           J                         J
           L                         L
           X                         X
           O                         O
           U                         U
           m                         m
           R                         R
           c                         c
           p                         p
           g                         g
           d                         d
           f                         f
           i                         i
           e                         e
           h                         h
           j                         j
