    New chain ID            Original chain ID

6ynx-pdb-bundle1.pdb:
           a                         a
           b                         b
           d                         d
           f                         f
           i                         i
           k                         k
           c                         c
           g                         g
           h                         h
           j                         j
           l                         l
           m                         m
           n                         n
           o                         o
           p                         p
           q                         q
           r                         r
           s                         s
           e                         e
           A                         A
           B                         B
           D                         D
           F                         F
           I                         I
           K                         K
           C                         C
           G                         G

6ynx-pdb-bundle2.pdb:
           A                         H
           B                         J
           C                         L
           D                         M
           E                         N
           F                         O
           G                         P
           H                         Q
           I                         R
           J                         S
           K                         E
           L                        i1
           M                        i2
           N                         t
