    New chain ID            Original chain ID

7mq9-pdb-bundle1.pdb:
           A                        L0
           B                        L1
           C                        L2
           D                        L3
           E                        L4
           F                        L5
           G                        L6
           H                        L7
           I                        L8
           J                        L9
           K                        LA
           L                        LC
           M                        LD
           N                        LF
           O                        LG
           P                        LH
           Q                        LI
           R                        LJ
           S                        LK
           T                        LL
           U                        LN
           V                        LO
           W                        LP
           X                        LQ
           Y                        LS

7mq9-pdb-bundle2.pdb:
           A                        LT
           B                        LU
           C                        LW
           D                        LZ
           E                        NA
           F                        NB
           G                        ND
           H                        NE
           I                        NF
           J                        NG
           K                        NJ
           L                        NM
           M                        NN
           N                        NO
           O                        NQ
           P                        NR
           Q                        NT
           R                        NU
           S                        NW
           T                        SA
           U                        SB
           V                        SC
           W                        SD
           X                        SE
           Y                        SF
           Z                        SH
           a                        SI
           b                        SK
           c                        SL
           d                        SM
           e                        SQ
           f                        SR
           g                        SS
           h                        SX
           i                        SY
           j                        NH
           k                        SP
           l                        LR

7mq9-pdb-bundle3.pdb:
           A                        LM
           B                        N0
           C                        SG
           D                        NI
           E                        SW
           F                        ST
           G                        SU
           H                        NK
           I                        NY
           J                        SZ
           K                        SJ
