    New chain ID            Original chain ID

9zdw-pdb-bundle1.pdb:
           A                        PA
           B                        TA
           C                        AA
           D                        PB
           E                        TB
           F                        AB
           G                        PC
           H                        TC
           I                        AC
           J                        PD
           K                        TD
           L                        AD
           M                        PE
           N                        TE
           O                        AE
           P                        PF
           Q                        TF
           R                        AF
           S                        PG
           T                        TG
           U                        AG
           V                        PH
           W                        TH
           X                        AH
           Y                        PI
           Z                        TI
           a                        AI
           b                        PJ
           c                        TJ
           d                        AJ
           e                        PK
           f                        TK
           g                        AK
           h                        PL
           i                        TL
           j                        AL
