    New chain ID            Original chain ID

9srd_1-pdb-bundle1.pdb:
           A                        AA
           B                        AB
           C                        AC
           D                        AD
           E                        AE
           F                        AF
           G                        AG
           H                        AH
           I                        AI
           J                        AJ
           K                        AK
           L                        AL
           M                        AM
           N                        AN
           O                        AP
           P                        AQ
           Q                        AR
           R                        AS
           S                        AU
           T                        AV
           U                        AW
           V                        AX
           W                        AZ
           X                        A0
           Y                        A3
           Z                        AT
           a                        AO
           b                        BB
           c                        BY
           d                        BO
           e                        BC
           f                        B5
           g                        BL
           h                        Bf
           i                        BU
           j                        Bb
           k                        Be
           l                        BE
           m                        Ba
           n                        BT
           o                        BW
           p                        Bi
           q                        BI
           r                        BR
           s                        BK
           t                        BQ
           u                        BV
           v                        Bj
           w                        BG
           x                        BD
           y                        BF
           z                        BZ
           0                        B6
           1                        BP
           2                        BM
           3                        BS
           4                        Bd
           5                        BN
           6                        Bg
           7                        Bc
           8                        BJ
           9                        Bl
9srd_1-pdb-bundle2.pdb:
           A                        B4
           B                        Bk
           C                         H
