HEADER    HYDROLASE                               12-DEC-00   1HP4              
TITLE     CRYSTAL STRUCTURE OF STREPTOMYCES PLICATUS BETA-N-ACETYLHEXOSAMINIDASE
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BETA-N-ACETYLHEXOSAMINIDASE;                               
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 3.2.1.52;                                                        
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES PLICATUS;                          
SOURCE   3 ORGANISM_TAXID: 1922;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET3A(P3AHEX-1.8)                         
KEYWDS    GLYCOSYL HYDROLASE, HEXOSAMINIDASE, STREPTOMYCES PLICATUS, FAMILY 20, 
KEYWDS   2 TIM BARREL, HYDROLASE                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.L.MARK                                                              
REVDAT   5   16-OCT-24 1HP4    1       REMARK ATOM                              
REVDAT   4   13-JUL-11 1HP4    1       VERSN                                    
REVDAT   3   24-FEB-09 1HP4    1       VERSN                                    
REVDAT   2   21-NOV-01 1HP4    1       REMARK                                   
REVDAT   1   04-APR-01 1HP4    0                                                
JRNL        AUTH   B.L.MARK,D.J.VOCADLO,S.KNAPP,B.L.TRIGGS-RAINE,S.G.WITHERS,   
JRNL        AUTH 2 M.N.JAMES                                                    
JRNL        TITL   CRYSTALLOGRAPHIC EVIDENCE FOR SUBSTRATE-ASSISTED CATALYSIS   
JRNL        TITL 2 IN A BACTERIAL BETA-HEXOSAMINIDASE.                          
JRNL        REF    J.BIOL.CHEM.                  V. 276 10330 2001              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   11124970                                                     
JRNL        DOI    10.1074/JBC.M011067200                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   B.L.MARK,G.A.WASNEY,T.J.SALO,A.R.KHAN,Z.CAO,P.W.ROBBINS,     
REMARK   1  AUTH 2 M.N.JAMES,B.L.TRIGGS-RAINE                                   
REMARK   1  TITL   STRUCTURAL AND FUNCTIONAL CHARACTERIZATION OF STREPTOMYCES   
REMARK   1  TITL 2 PLICATUS BETA-N-ACETYLHEXOSAMINIDASE BY COMPARATIVE          
REMARK   1  TITL 3 MOLECULAR MODELING AND SITE-DIRECTED MUTAGENESIS             
REMARK   1  REF    J.BIOL.CHEM.                  V. 273 19618 1998              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1  DOI    10.1074/JBC.273.31.19618                                     
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   P.W.ROBBINS,K.OVERBYE,C.ALBRIGHT,B.BENFIELD,J.PERO           
REMARK   1  TITL   CLONING AND HIGH-LEVEL EXPRESSION OF CHITINASE-ENCODING GENE 
REMARK   1  TITL 2 OF STREPTOMYCES PLICATUS                                     
REMARK   1  REF    GENE                          V. 111    69 1992              
REMARK   1  REFN                   ISSN 0378-1119                               
REMARK   1  DOI    10.1016/0378-1119(92)90604-N                                 
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   P.W.ROBBINS,C.ALBRIGHT,B.BENFIELD                            
REMARK   1  TITL   CLONING AND EXPRESSION OF A STREPTOMYCES PLICATUS CHITINASE  
REMARK   1  TITL 2 (CHITINASE-63) IN ESCHERICHIA COLI                           
REMARK   1  REF    J.BIOL.CHEM.                  V. 263   443 1988              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   B.L.MARK,D.J.VOCADLO,D.ZHAO,S.KNAPP,S.G.WITHERS,M.N.JAMES    
REMARK   1  TITL   BIOCHEMICAL AND STRUCTURAL ASSESSMENT OF THE 1-N-AZASUGAR    
REMARK   1  TITL 2 GALNAC-ISOFAGOMINE AS A POTENT FAMILY 20 BETA                
REMARK   1  TITL 3 -N-ACETYLHEXOSAMINIDASE INHIBITOR.                           
REMARK   1  REF    J.BIOL.CHEM.                  V. 276 42131 2001              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1  DOI    10.1074/JBC.M107154200                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.19                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 3258301.650                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 99.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 47413                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.181                           
REMARK   3   FREE R VALUE                     : 0.209                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.100                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 4783                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.003                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.34                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.70                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 6987                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1750                       
REMARK   3   BIN FREE R VALUE                    : 0.2140                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 9.60                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 739                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.008                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3864                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 27                                      
REMARK   3   SOLVENT ATOMS            : 382                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 12.50                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 17.40                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.75000                                              
REMARK   3    B22 (A**2) : 0.75000                                              
REMARK   3    B33 (A**2) : -1.50000                                             
REMARK   3    B12 (A**2) : 1.69000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.21                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.07                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.25                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.15                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 23.00                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.820                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.100 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.610 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.870 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.600 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.38                                                 
REMARK   3   BSOL        : 51.07                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : GOL_XPLOR_PAR.TXT                              
REMARK   3  PARAMETER FILE  3  : SPECIAL_POSITION.PARAM                         
REMARK   3  PARAMETER FILE  4  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  5  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : GOL_XPLOR_TOP.TXT                              
REMARK   3  TOPOLOGY FILE  3   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  4   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HP4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-DEC-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000012495.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-SEP-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 14-BM-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9797, 0.9795, 0.9496             
REMARK 200  MONOCHROMATOR                  : TRIANGLE GE(111), CONICAL SI/RH    
REMARK 200                                   MIRROR                             
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 47413                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 12.00                              
REMARK 200  R MERGE                    (I) : 0.03100                            
REMARK 200  R SYM                      (I) : 0.03100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 56.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.26                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.06700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 21.60                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 69.43                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.02                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, TRI-SODIUM CITRATE,   
REMARK 280  20% GLYCEROL, PH 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE    
REMARK 280  298.0K                                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+5/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/6                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       58.92967            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      117.85933            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       88.39450            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000      147.32417            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       29.46483            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       58.92967            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000      117.85933            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000      147.32417            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       88.39450            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       29.46483            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 6030 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 32360 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -138.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.500000  0.866025  0.000000      -66.55000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000      115.26798            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       29.46483            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3630 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 34500 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -88.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.500000 -0.866025  0.000000       66.55000            
REMARK 350   BIOMT2   2 -0.866025 -0.500000  0.000000      115.26798            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      -29.46483            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A    -5                                                      
REMARK 465     HIS A    -4                                                      
REMARK 465     HIS A    -3                                                      
REMARK 465     HIS A    -2                                                      
REMARK 465     HIS A    -1                                                      
REMARK 465     HIS A     0                                                      
REMARK 465     HIS A     1                                                      
REMARK 465     HIS A     2                                                      
REMARK 465     THR A     3                                                      
REMARK 465     GLY A     4                                                      
REMARK 465     ALA A     5                                                      
REMARK 465     ALA A     6                                                      
REMARK 465     PRO A     7                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500  CL     CL A   510    CL     CL A   510    12565     0.31            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    HIS A  77       68.79   -110.78                                   
REMARK 500    ASP A 191     -160.74   -166.41                                   
REMARK 500    HIS A 345       -8.98    -57.92                                   
REMARK 500    GLU A 351       82.90     47.16                                   
REMARK 500    ARG A 391      -57.75   -137.28                                   
REMARK 500    ASP A 475      117.16   -171.28                                   
REMARK 500    TRP A 505      130.58    -39.40                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 507                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 508                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 509                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 510                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 511                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 512                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 513                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 514                 
DBREF  1HP4 A    3   506  UNP    O85361   O85361_STRPL     3    506             
SEQADV 1HP4 MET A   -5  UNP  O85361              INITIATING METHIONINE          
SEQADV 1HP4 HIS A   -4  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A   -3  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A   -2  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A   -1  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A    0  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A    1  UNP  O85361              SEE REMARK 999                 
SEQADV 1HP4 HIS A    2  UNP  O85361              SEE REMARK 999                 
SEQRES   1 A  512  MET HIS HIS HIS HIS HIS HIS HIS THR GLY ALA ALA PRO          
SEQRES   2 A  512  ASP ARG LYS ALA PRO VAL ARG PRO THR PRO LEU ASP ARG          
SEQRES   3 A  512  VAL ILE PRO ALA PRO ALA SER VAL ASP PRO GLY GLY ALA          
SEQRES   4 A  512  PRO TYR ARG ILE THR ARG GLY THR HIS ILE ARG VAL ASP          
SEQRES   5 A  512  ASP SER ARG GLU ALA ARG ARG VAL GLY ASP TYR LEU ALA          
SEQRES   6 A  512  ASP LEU LEU ARG PRO ALA THR GLY TYR ARG LEU PRO VAL          
SEQRES   7 A  512  THR ALA HIS GLY HIS GLY GLY ILE ARG LEU ARG LEU ALA          
SEQRES   8 A  512  GLY GLY PRO TYR GLY ASP GLU GLY TYR ARG LEU ASP SER          
SEQRES   9 A  512  GLY PRO ALA GLY VAL THR ILE THR ALA ARG LYS ALA ALA          
SEQRES  10 A  512  GLY LEU PHE HIS GLY VAL GLN THR LEU ARG GLN LEU LEU          
SEQRES  11 A  512  PRO PRO ALA VAL GLU LYS ASP SER ALA GLN PRO GLY PRO          
SEQRES  12 A  512  TRP LEU VAL ALA GLY GLY THR ILE GLU ASP THR PRO ARG          
SEQRES  13 A  512  TYR ALA TRP ARG SER ALA MET LEU ASP VAL SER ARG HIS          
SEQRES  14 A  512  PHE PHE GLY VAL ASP GLU VAL LYS ARG TYR ILE ASP ARG          
SEQRES  15 A  512  VAL ALA ARG TYR LYS TYR ASN LYS LEU HIS LEU HIS LEU          
SEQRES  16 A  512  SER ASP ASP GLN GLY TRP ARG ILE ALA ILE ASP SER TRP          
SEQRES  17 A  512  PRO ARG LEU ALA THR TYR GLY GLY SER THR GLU VAL GLY          
SEQRES  18 A  512  GLY GLY PRO GLY GLY TYR TYR THR LYS ALA GLU TYR LYS          
SEQRES  19 A  512  GLU ILE VAL ARG TYR ALA ALA SER ARG HIS LEU GLU VAL          
SEQRES  20 A  512  VAL PRO GLU ILE ASP MET PRO GLY HIS THR ASN ALA ALA          
SEQRES  21 A  512  LEU ALA SER TYR ALA GLU LEU ASN CYS ASP GLY VAL ALA          
SEQRES  22 A  512  PRO PRO LEU TYR THR GLY THR LYS VAL GLY PHE SER SER          
SEQRES  23 A  512  LEU CYS VAL ASP LYS ASP VAL THR TYR ASP PHE VAL ASP          
SEQRES  24 A  512  ASP VAL ILE GLY GLU LEU ALA ALA LEU THR PRO GLY ARG          
SEQRES  25 A  512  TYR LEU HIS ILE GLY GLY ASP GLU ALA HIS SER THR PRO          
SEQRES  26 A  512  LYS ALA ASP PHE VAL ALA PHE MET LYS ARG VAL GLN PRO          
SEQRES  27 A  512  ILE VAL ALA LYS TYR GLY LYS THR VAL VAL GLY TRP HIS          
SEQRES  28 A  512  GLN LEU ALA GLY ALA GLU PRO VAL GLU GLY ALA LEU VAL          
SEQRES  29 A  512  GLN TYR TRP GLY LEU ASP ARG THR GLY ASP ALA GLU LYS          
SEQRES  30 A  512  ALA GLU VAL ALA GLU ALA ALA ARG ASN GLY THR GLY LEU          
SEQRES  31 A  512  ILE LEU SER PRO ALA ASP ARG THR TYR LEU ASP MET LYS          
SEQRES  32 A  512  TYR THR LYS ASP THR PRO LEU GLY LEU SER TRP ALA GLY          
SEQRES  33 A  512  TYR VAL GLU VAL GLN ARG SER TYR ASP TRP ASP PRO ALA          
SEQRES  34 A  512  GLY TYR LEU PRO GLY ALA PRO ALA ASP ALA VAL ARG GLY          
SEQRES  35 A  512  VAL GLU ALA PRO LEU TRP THR GLU THR LEU SER ASP PRO          
SEQRES  36 A  512  ASP GLN LEU ASP TYR MET ALA PHE PRO ARG LEU PRO GLY          
SEQRES  37 A  512  VAL ALA GLU LEU GLY TRP SER PRO ALA SER THR HIS ASP          
SEQRES  38 A  512  TRP ASP THR TYR LYS VAL ARG LEU ALA ALA GLN ALA PRO          
SEQRES  39 A  512  TYR TRP GLU ALA ALA GLY ILE ASP PHE TYR ARG SER PRO          
SEQRES  40 A  512  GLN VAL PRO TRP THR                                          
HET     CL  A 507       1                                                       
HET     CL  A 508       1                                                       
HET     CL  A 509       1                                                       
HET     CL  A 510       1                                                       
HET    SO4  A 511       5                                                       
HET    GOL  A 512       6                                                       
HET    GOL  A 513       6                                                       
HET    GOL  A 514       6                                                       
HETNAM      CL CHLORIDE ION                                                     
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2   CL    4(CL 1-)                                                     
FORMUL   6  SO4    O4 S 2-                                                      
FORMUL   7  GOL    3(C3 H8 O3)                                                  
FORMUL  10  HOH   *382(H2 O)                                                    
HELIX    1   1 SER A   48  GLY A   67  1                                  20    
HELIX    2   2 LYS A  109  LEU A  124  1                                  16    
HELIX    3   3 PRO A  125  LYS A  130  5                                   6    
HELIX    4   4 GLY A  166  ARG A  179  1                                  14    
HELIX    5   5 PRO A  203  TYR A  208  1                                   6    
HELIX    6   6 THR A  223  ARG A  237  1                                  15    
HELIX    7   7 THR A  251  TYR A  258  1                                   8    
HELIX    8   8 ALA A  259  ASN A  262  5                                   4    
HELIX    9   9 LYS A  285  LEU A  302  1                                  18    
HELIX   10  10 PRO A  319  TYR A  337  1                                  19    
HELIX   11  11 GLN A  346  ALA A  350  5                                   5    
HELIX   12  12 GLY A  367  ASN A  380  1                                  14    
HELIX   13  13 GLU A  413  ASP A  419  1                                   7    
HELIX   14  14 ASP A  421  TYR A  425  5                                   5    
HELIX   15  15 PRO A  430  ASP A  432  5                                   3    
HELIX   16  16 ASP A  448  PHE A  457  1                                  10    
HELIX   17  17 PRO A  458  SER A  469  1                                  12    
HELIX   18  18 PRO A  470  HIS A  474  5                                   5    
HELIX   19  19 ASP A  475  ALA A  485  1                                  11    
HELIX   20  20 GLN A  486  GLY A  494  1                                   9    
SHEET    1   A 7 SER A  27  PRO A  30  0                                        
SHEET    2   A 7 GLY A 143  ASP A 147 -1  O  THR A 144   N  ASP A  29           
SHEET    3   A 7 TYR A  94  GLY A  99 -1  O  TYR A  94   N  ASP A 147           
SHEET    4   A 7 GLY A 102  ALA A 107 -1  N  GLY A 102   O  GLY A  99           
SHEET    5   A 7 ILE A  80  LEU A  84  1  O  ARG A  81   N  ILE A 105           
SHEET    6   A 7 ILE A  43  ARG A  44  1  O  ARG A  44   N  LEU A  82           
SHEET    7   A 7 VAL A  72  THR A  73  1  N  THR A  73   O  ILE A  43           
SHEET    1   B 2 TYR A  35  ILE A  37  0                                        
SHEET    2   B 2 TRP A 138  VAL A 140 -1  O  TRP A 138   N  ILE A  37           
SHEET    1   C 9 TRP A 153  ASP A 159  0                                        
SHEET    2   C 9 LYS A 184  HIS A 188  1  O  LYS A 184   N  ALA A 156           
SHEET    3   C 9 GLU A 240  GLU A 244  1  O  GLU A 240   N  LEU A 185           
SHEET    4   C 9 TYR A 307  HIS A 309  1  N  HIS A 309   O  PRO A 243           
SHEET    5   C 9 THR A 340  TRP A 344  1  O  THR A 340   N  LEU A 308           
SHEET    6   C 9 LEU A 357  TYR A 360  1  N  LEU A 357   O  VAL A 341           
SHEET    7   C 9 GLY A 383  LEU A 386  1  O  GLY A 383   N  VAL A 358           
SHEET    8   C 9 VAL A 434  LEU A 441  1  N  ARG A 435   O  LEU A 384           
SHEET    9   C 9 TRP A 153  ASP A 159  1  O  TRP A 153   N  VAL A 437           
SHEET    1   D 2 SER A 190  ASP A 191  0                                        
SHEET    2   D 2 GLY A 194  TRP A 195 -1  O  GLY A 194   N  ASP A 191           
SSBOND   1 CYS A  263    CYS A  282                          1555   1555  2.04  
CISPEP   1 ILE A   22    PRO A   23          0        -0.15                     
CISPEP   2 GLY A  136    PRO A  137          0         0.04                     
CISPEP   3 MET A  247    PRO A  248          0        -0.11                     
CISPEP   4 PHE A  457    PRO A  458          0         0.75                     
SITE     1 AC1  5 TYR A 271  LYS A 275  LEU A 406  SER A 407                    
SITE     2 AC1  5 TRP A 408                                                     
SITE     1 AC2  3 ASP A 175  ARG A 176  ARG A 179                               
SITE     1 AC3  6 THR A 223  LYS A 224  ALA A 225  HOH A 542                    
SITE     2 AC3  6 HOH A 791  HOH A 813                                          
SITE     1 AC4  2 LYS A 275  VAL A 276                                          
SITE     1 AC5  4 ARG A 150  ALA A 423  HOH A 610  HOH A 731                    
SITE     1 AC6  9 ARG A 162  VAL A 276  ASP A 395  LEU A 406                    
SITE     2 AC6  9 TRP A 408  TRP A 442  GLU A 444  GOL A 513                    
SITE     3 AC6  9 HOH A 671                                                     
SITE     1 AC7  6 LYS A 275  VAL A 276  GLU A 314  TRP A 408                    
SITE     2 AC7  6 GOL A 512  GOL A 514                                          
SITE     1 AC8 10 HIS A 316  SER A 317  HIS A 345  GLN A 346                    
SITE     2 AC8 10 TRP A 361  GLU A 370  TRP A 408  GOL A 513                    
SITE     3 AC8 10 HOH A 683  HOH A 687                                          
CRYST1  133.100  133.100  176.789  90.00  90.00 120.00 P 61 2 2     12          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.007513  0.004338  0.000000        0.00000                         
SCALE2      0.000000  0.008675  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005656        0.00000