    New chain ID            Original chain ID

8bqd-pdb-bundle1.pdb:
           A                         B
           B                         A
           C                         C
           D                         D
           E                         E
           F                         F
           G                         G
           H                         H
           I                         I
           J                         J
           K                         K
           L                         L
           M                         M
           N                         N
           O                         O
           P                         P
           Q                         Q
           R                         R
           S                         S
           T                         T
           U                         U
           V                         V
           W                         W
           X                         X
           Y                         Y
           Z                         Z
           a                        AA
           b                        BA
           c                        AB
           d                        BB
           e                        AC
           f                        BC
           g                         2
           h                         a
           i                         b
           j                         c
           k                         d
           l                         e
           m                         f
           n                         g

8bqd-pdb-bundle2.pdb:
           A                        BQ
           B                        BR
           C                        BS
           D                        AW
           E                        BE
           F                        BI
           G                        BM
           H                        BO
           I                        AD
           J                        BD
           K                        AG
           L                        AJ
           M                        AM
           N                        AQ
           O                        AU
           P                        AX

8bqd-pdb-bundle3.pdb:
           A                        BF
           B                        BH
           C                        BJ
           D                        BL
           E                        AE
           F                        AH
           G                        AK
           H                        AN
           I                        AR
           J                        AV
           K                        AY
           L                        BG
           M                        BK
           N                        BN
           O                        BP
           P                        AF
           Q                        AI
           R                        AL
           S                        AO
           T                        AS
           U                        AP
           V                        AT
           W                         x
           X                        BT
