    New chain ID            Original chain ID

7top-pdb-bundle1.pdb:
           A                      A25S
           B                      A58S
           C                       A5S
           D                      AL02
           E                      AL03
           F                      AL04
           G                      AL05
           H                      AL06
           I                      AL07
           J                      AL08
           K                      AL09
           L                      AL10
           M                      AL11
           N                      AL12
           O                      AL13
           P                      AL14
           Q                      AL15
           R                      AL16

7top-pdb-bundle2.pdb:
           A                      AL17
           B                      AL18
           C                      AL19
           D                      AL20
           E                      AL21
           F                      AL22
           G                      AL23
           H                      AL24
           I                      AL25
           J                      AL26
           K                      AL27
           L                      AL28
           M                      AL29
           N                      AL30
           O                      AL31
           P                      AL32
           Q                      AL33
           R                      AL34
           S                      AL35
           T                      AL36
           U                      AL37
           V                      AL38
           W                      AL39
           X                      AL40
           Y                      AL41
           Z                      AL42
           a                      AL43
           b                      ALP0
           c                      APTN
           d                        PR
