    New chain ID            Original chain ID

8ugg-pdb-bundle1.pdb:
           A                        3A
           B                        3B
           C                        3C
           D                        3D
           E                        3E
           F                        3F
           G                        3G
           H                        3H
           I                        3I
           J                        3J
           K                        3N
           L                        3O
           M                        3P
           N                        3Q
           O                        3R
           P                        3S
           Q                        3T
           R                        3U
           S                        3V
           T                        3W
           U                        3X
           V                        3Y
