    New chain ID            Original chain ID

13gh_1-pdb-bundle1.pdb:
           A                        C1
           B                        C2
           C                        C3
           D                        C4
           E                        C5
           F                        C6
           G                        C7
           H                        C8
           I                        C9
           J                       C10
           K                       C11
           L                       C12
           M                       C13
           N                       C14
           O                       C15
           P                       C16
           Q                       C17
           R                       C18
           S                       C19
           T                       C20
           U                       C21
           V                       C22
           W                       C23
           X                       C24
           Y                       C25
           Z                       C26
           a                       C27
           b                       C28
           c                       C29
           d                       C30
           e                       C31
           f                       C32
           g                       C33
13gh_1-pdb-bundle2.pdb:
           A                       C33
           B                       C34
           C                       C35
           D                       C36
           E                       C37
           F                       C38
           G                       C39
           H                       C40
           I                       C41
