    New chain ID            Original chain ID

5mc6-pdb-bundle1.pdb:
           2                         2
           A                         A
           B                         B
           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                         a
           b                         b
           c                         c
           d                         d
           e                         e
           f                         f
           g                         g
           l                         l
           m                         m
           n                         n
           h                         h
           i                         i

5mc6-pdb-bundle2.pdb:
           A                         j
           B                         k
           C                        AA
           D                        AB
           E                        AC
           F                        AD
           G                        AE
           H                        AF
           I                        AG
           J                        AH
           K                        AI
           L                        AJ
           M                        AK
           N                        AL
           O                        AM
           P                        AN
           Q                        AO
           R                        AP
           S                        AQ
           T                        AR
           U                        AS
           V                        AT
           W                        AU
           X                        AV
           Y                        AW
           Z                        AX
           a                        AY
           b                        AZ
           c                        BA
           d                        BB
           e                        BC
           f                        BD
           g                        BE
           h                        BF
           i                        BG
           j                        BH
           k                        BI
           l                        BJ
           m                        BK
           n                        BL
           o                        BM
           p                        BN
           q                        BO
           r                        BP

5mc6-pdb-bundle3.pdb:
           A                        BQ
           B                        BR
           C                        BS
           D                        BT
