    New chain ID            Original chain ID

6ynx_1-pdb-bundle1.pdb:
           A                         a
           B                         b
           C                         d
           D                         f
           E                         i
           F                         k
           G                         c
           H                         g
           I                         h
           J                         j
           K                         l
           L                         m
           M                         n
           N                         o
           O                         p
           P                         q
           Q                         r
           R                         s
           S                         e
           T                         A
           U                         B
           V                         D
           W                         F
           X                         I
           Y                         K
           Z                         C
           a                         G
           b                         H
           c                         J
           d                         L
6ynx_1-pdb-bundle2.pdb:
           A                         L
           B                         M
           C                         N
           D                         O
           E                         P
           F                         Q
           G                         R
           H                         S
           I                         E
           J                        i2
           K                         t
