    New chain ID            Original chain ID

8vde-pdb-bundle1.pdb:
           A                        B1
           B                        B2
           C                        B3
           D                        B4
           E                        B5
           F                        C1
           G                        C2
           H                        C3
           I                        C4
           J                        C5
           K                        D1
           L                        D2
           M                        D3
           N                        D4
           O                        D5
           P                        P1
           Q                        P2
           R                        P3
           S                        P4
           T                        P5
           U                        P6
           V                        P7
           W                        P8
           X                        P9
           Y                        Q1
           Z                        Q2
           a                        Q3
