    New chain ID            Original chain ID

6ydw-pdb-bundle1.pdb:
           A                        AI
           B                        BT
           C                        BU
           D                        BV
           E                        BW
           F                        BX
           G                        BY
           H                        Ba
           I                        Bb
           J                        Bc
           K                        Bd
           L                        Be
           M                        Bf
           N                        Bg
           O                        Bh
           P                        Bi
           Q                        Bj
           R                        Bk
           S                        Bl
           T                        Bm
           U                        Bn
           V                        Bo
           W                        Bp
           X                        Bq
           Y                        Bt
           Z                        Bu
           a                        Bv
           b                        B0
           c                        Bw
           d                        Bx
           e                        AA
           f                        AB
           g                        AC
           h                        AE
           i                        AF
           j                        AG
           k                        AJ
           l                        AK
           m                        AL
           n                        AN
           o                        AO
           p                        AP
           q                        AQ
           r                        AR
           s                        AU
           t                        AV
           u                        AX
           v                        AY
           w                        AZ
           x                        Aa
           y                        Ab
           z                        Ac
           0                        Ad
           1                        Ae
           2                        B1
           3                        Af

6ydw-pdb-bundle2.pdb:
           A                        Ag
           B                        Ah
           C                        Ai
           D                        Aj
           E                        Ak
           F                        Am
           G                        An
           H                        Ao
           I                        Ap
           J                        CL
           K                        DL
           L                        EL
           M                        FL
           N                        GL
           O                        HL
           P                        LL
           Q                        B2
           R                        B3
           S                        B4
           T                        B5
           U                        B6
           V                        B7
           W                        B8
           X                        B9
           Y                        BA
           Z                        BB
           a                        BC
           b                        BD
           c                        BE
           d                        BF
           e                        BI
           f                        BJ
           g                        BK
           h                        BN
           i                        BO
           j                        BP
           k                        BQ
           l                        BR
           m                        BS
