    New chain ID            Original chain ID

7w5z-pdb-bundle1.pdb:
           A                        U1
           B                        U2
           C                        U3
           D                        U4
           E                        U5
           F                        U6
           G                        C1
           H                        C2
           I                        C3
           J                        5B
           K                        6A
           L                        6B
           M                        6L
           N                        6C
           O                        7A
           P                        7C
           Q                        7L
           R                        M1
           S                        M2
           T                        M3
           U                        T1
           V                        T2
           W                        T3
           X                        T4
           Y                        T5
           Z                        T6
           a                        BP
           b                        FS
           c                        AC
           d                        Y7
           e                        Y0
           f                        Y5
           g                         A
           h                         B
           i                         C
           j                         D
           k                         E
           l                         F
           m                         G
           n                         H
           o                         I
           p                         J
           q                         K
           r                         L
           s                         M
           t                         N
           u                         O
           v                         P
           w                         Q
           x                         R
           y                         S
           z                         T
           0                         U
           1                         V
           2                         W
           3                         X
           4                         Y
           5                         Z
           6                        u1
           7                        u2
           8                        u3
           9                        u4

7w5z-pdb-bundle2.pdb:
           A                        u5
           B                        u6
           C                        c1
           D                        c2
           E                        c3
           F                        5b
           G                        6a
           H                        6b
           I                        6l
           J                        6c
           K                        7a
           L                        7c
           M                        7l
           N                        m1
           O                        m2
           P                        m3
           Q                        t1
           R                        t2
           S                        t3
           T                        t4
           U                        t5
           V                        t6
           W                        bp
           X                        fs
           Y                        ac
           Z                        y7
           a                        y0
           b                        y5
           c                         a
           d                         b
           e                         d
           f                         e
           g                         f
           h                         g
           i                         h
           j                         i
           k                         j
           l                         k
           m                         l
           n                         m
           o                         n
           p                         o
           q                         p
           r                         q
           s                         r
           t                         s
           u                         t
           v                         u
           w                         v
           x                         w
           y                         x
           z                         y
           0                         z
           1                         c
