COMPND    MOL_ID: 1;
COMPND   2 MOLECULE: Beta-galactosidase-like enzyme;
COMPND   3 CHAIN: A, C, E, G;
COMPND   4 MUTATION: YES;
COMPND   5 ENGINEERED: YES;
EXPDTA     X-RAY DIFFRACTION
REMARK   2 RESOLUTION.    2.20 ANGSTORMS
DBREF  6M4F A   23   594  UNP    Q564N5   Q564N5_9BAS     23    594
SEQRES   1 A  542  GLY THR ALA GLU LEU ASP ALA LEU TRP ASN LEU VAL GLU
SEQRES   2 A  542  ALA GLN TYR PRO VAL GLN THR ALA ALA VAL THR THR LEU
SEQRES   3 A  542  VAL THR VAL PRO ASP ASP TYR LYS PHE GLU ALA ASP PRO
SEQRES   4 A  542  PRO SER TYR ALA LEU ALA GLY TYR GLU THR SER GLU ILE
SEQRES   5 A  542  ALA GLY LEU LYS PHE PRO LYS GLY PHE LYS PHE GLY VAL
SEQRES   6 A  542  ALA GLY ALA ALA ILE GLN VAL GLU GLY ALA ALA LYS ALA
SEQRES   7 A  542  GLU GLY ARG GLY PRO SER THR TRP ASP TYR LEU CYS HIS
SEQRES   8 A  542  HIS TYR ALA SER THR GLN CYS ASN ASN TYR ASP PRO ASP
SEQRES   9 A  542  ILE THR THR ASN HIS TYR TYR LEU TYR PRO LEU ASP PHE
SEQRES  10 A  542  ALA ARG LEU GLN HIS LEU GLY ILE ASN THR TYR SER PHE
SEQRES  11 A  542  SER ILE SER TRP THR ARG ILE TYR PRO LEU GLY ALA GLY
SEQRES  12 A  542  TYR VAL ASN GLU ALA GLY LEU ALA HIS TYR ASP ALA VAL
SEQRES  13 A  542  ILE HIS SER ALA LYS LYS TYR GLY LEU GLU PRO VAL GLY
SEQRES  14 A  542  THR VAL PHE HIS TRP ASP THR PRO LEU SER LEU MET LEU
SEQRES  15 A  542  LYS TYR GLY ALA TRP GLN ASP THR GLY ASP GLN ILE VAL
SEQRES  16 A  542  LYS ASP PHE VAL THR TYR ALA THR THR VAL PHE LYS ARG
SEQRES  17 A  542  TYR GLY ASN GLU VAL LYS THR TRP PHE THR PHE ASN GLU
SEQRES  18 A  542  PRO ARG VAL PHE CYS SER GLN ASN SER GLY LEU PRO TYR
SEQRES  19 A  542  ASN LEU THR TYR PRO GLU GLY ILE ASN SER THR SER ALA
SEQRES  20 A  542  VAL PHE ARG CYS THR TYR ASN VAL LEU LYS ALA HIS GLY
SEQRES  21 A  542  HIS ALA VAL LYS VAL TYR ARG ASP LEU VAL ALA SER GLY
SEQRES  22 A  542  THR ILE ALA ALA GLY GLU ILE GLY PHE LYS SER ASP ASP
SEQRES  23 A  542  ASN TYR PRO ILE PRO ALA ARG PRO GLY ASN ALA ASP ASP
SEQRES  24 A  542  GLU GLU SER ALA LYS ARG HIS GLU ALA PHE ARG ILE GLY
SEQRES  25 A  542  ILE PHE ALA GLN PRO VAL TYR GLY ASN GLY ASP TYR PRO
SEQRES  26 A  542  ASP VAL VAL LYS GLU THR VAL GLY ASP MET LEU PRO ALA
SEQRES  27 A  542  LEU THR ASP GLU ASP LYS GLY TYR ILE LYS GLY SER GLY
SEQRES  28 A  542  ASP ILE PHE ALA ILE ASP GLY TYR ARG THR ASP ILE SER
SEQRES  29 A  542  HIS ALA ALA LEU ASN GLY ILE ALA ASN CYS ILE ARG ASN
SEQRES  30 A  542  GLN SER ASP PRO ASN TRP PRO VAL CYS GLU GLU GLY SER
SEQRES  31 A  542  ASP PRO PHE ALA HIS VAL TYR PRO SER GLY PHE ALA ILE
SEQRES  32 A  542  GLY GLN SER ALA ASP PRO LEU SER SER TRP LEU VAL ASN
SEQRES  33 A  542  SER ALA PRO PHE ILE ARG ASP GLN LEU LYS PHE LEU THR
SEQRES  34 A  542  GLN THR TYR PRO ALA LYS GLY GLY ILE TYR PHE SER ALA
SEQRES  35 A  542  PHE GLY TRP ALA GLU ASP ALA GLU TYR ASP ARG GLN LEU
SEQRES  36 A  542  LEU TYR GLN ILE THR TRP ASP GLY LEU ARG THR GLN TYR
SEQRES  37 A  542  LEU THR ASP TYR LEU SER GLN LEU LEU LEU ALA VAL HIS
SEQRES  38 A  542  LYS ASP GLY ILE ASN LEU ARG GLY ALA LEU THR TRP SER
SEQRES  39 A  542  PHE VAL ASP ASN TRP GLU TRP GLY LEU GLY MET GLN GLN
SEQRES  40 A  542  LYS PHE GLY PHE GLN PHE VAL ASN GLN SER ASP PRO ASP
SEQRES  41 A  542  LEU THR ARG THR PHE LYS LEU SER ALA HIS ALA TYR ALA
SEQRES  42 A  542  GLN PHE GLY ARG ASN HIS LEU HIS HIS