    New chain ID            Original chain ID

6ek5-pdb-bundle1.pdb:
           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                        BA
           b                        BB
           c                        BC
           d                        BD
           e                         a
           f                         b
           g                         c
           h                         d
           i                         e
           j                         f
           k                         g
           l                         h
           m                         i
           n                         j
           o                         m
           p                         n
           q                         o
           r                         p
           s                         q
           t                         r
           u                         s
           v                         t
           w                         u
           x                         x
           y                         y
           z                         z
           0                         3
           1                         1
           2                         2
           3                         k
           4                         w
           5                         l
           6                         v
           7                        BE
           8                        BF
           9                        BG

6ek5-pdb-bundle2.pdb:
           A                        BJ
           B                        BP
           C                        BS
           D                        BT
           E                        BU
           F                        BX
           G                        BY
           H                        BZ
           I                        Ba
           J                        Bb
           K                        Bc
           L                        Bd
           M                        BK
           N                        BL
           O                        BM
           P                        BN
           Q                        BO
           R                        Be
           S                        Bf
           T                        Bg
           U                        Bh
           V                        Bi
           W                        Bj
           X                        Bm
           Y                        Bn
           Z                        Bo
           a                        Bp
           b                        Bq
           c                        Br
           d                        Bs
           e                        Bt
           f                        Bu
           g                        Bx
           h                        By
           i                        Bz
           j                        B3
           k                        B1
           l                        B2
           m                        Bw
           n                        BH
           o                        BQ
           p                        BV
           q                        Bk
           r                        Bv
           s                        BI
           t                        BR
           u                        BW
           v                        Bl
