PDB Short entry for 1IZC
HEADER    LYASE                                   01-OCT-02   1IZC              
TITLE     CRYSTAL STRUCTURE ANALYSIS OF MACROPHOMATE SYNTHASE                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: MACROPHOMATE SYNTHASE INTERMOLECULAR DIELS-ALDERASE;       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: MACROPHOMATE SYNTHASE;                                      
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MACROPHOMA COMMELINAE;                          
SOURCE   3 ORGANISM_TAXID: 108330;                                              
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: PET30B                                    
KEYWDS    TIM-BARREL, PYRUVATE MG(II) COMPLEX, LYASE                            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.OSE,K.WATANABE,T.MIE,M.HONMA,H.WATANABE,M.YAO,H.OIKAWA,I.TANAKA     
REVDAT   4   13-JUL-11 1IZC    1       VERSN                                    
REVDAT   3   24-FEB-09 1IZC    1       VERSN                                    
REVDAT   2   08-APR-03 1IZC    3       HETATM                                   
REVDAT   1   01-APR-03 1IZC    0                                                
JRNL        AUTH   T.OSE,K.WATANABE,T.MIE,M.HONMA,H.WATANABE,M.YAO,H.OIKAWA,    
JRNL        AUTH 2 I.TANAKA                                                     
JRNL        TITL   INSIGHT INTO A NATURAL DIELS-ALDER REACTION FROM THE         
JRNL        TITL 2 STRUCTURE OF MACROPHOMATE SYNTHASE.                          
JRNL        REF    NATURE                        V. 422   185 2003              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   12634789                                                     
JRNL        DOI    10.1038/NATURE01454                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
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) : 1.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 91.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 41102                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.176                           
REMARK   3   FREE R VALUE                     : 0.203                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 4121                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.76                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2360                       
REMARK   3   BIN FREE R VALUE                    : 0.2752                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 245                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2270                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 7                                       
REMARK   3   SOLVENT ATOMS            : 360                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 23.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.48                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.33000                                             
REMARK   3    B22 (A**2) : -1.33000                                             
REMARK   3    B33 (A**2) : 2.66100                                              
REMARK   3    B12 (A**2) : -0.24400                                             
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) : 0.17                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.10                            
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) : 0.20                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.13                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.008                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.37                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.98                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.92                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1IZC COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 03-OCT-02.                  
REMARK 100 THE RCSB ID CODE IS RCSB005434.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-NOV-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : PHOTON FACTORY                     
REMARK 200  BEAMLINE                       : BL-18B                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.0                                
REMARK 200  MONOCHROMATOR                  : SILICON                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : CCP4 (SCALA)                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 41139                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.3                               
REMARK 200  DATA REDUNDANCY                : 6.500                              
REMARK 200  R MERGE                    (I) : 0.08100                            
REMARK 200  R SYM                      (I) : 0.07500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.5000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.79                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 61.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.31500                            
REMARK 200  R SYM FOR SHELL            (I) : 0.28100                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: SHARP                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.99                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.73                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PIPES, PH 6.5, VAPOR DIFFUSION,          
REMARK 280  HANGING DROP, TEMPERATURE 293K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63 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                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+1/2                                            
REMARK 290       6555   X-Y,X,Z+1/2                                             
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z                                              
REMARK 290      10555   -Y,-X,-Z+1/2                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/2                                            
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        0.00000            
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        0.00000            
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       60.37750            
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       60.37750            
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       60.37750            
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        0.00000            
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        0.00000            
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       60.37750            
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       60.37750            
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       60.37750            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
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: HEXAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 34820 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 59040 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -252.0 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      106.67800            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000       53.33900            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000       92.38586            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   4  0.500000 -0.866025  0.000000       53.33900            
REMARK 350   BIOMT2   4 -0.866025 -0.500000  0.000000       92.38586            
REMARK 350   BIOMT3   4  0.000000  0.000000 -1.000000       60.37750            
REMARK 350   BIOMT1   5 -1.000000  0.000000  0.000000      106.67800            
REMARK 350   BIOMT2   5  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   5  0.000000  0.000000 -1.000000       60.37750            
REMARK 350   BIOMT1   6  0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   6  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   6  0.000000  0.000000 -1.000000       60.37750            
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     1                                                      
REMARK 465     GLN A   301                                                      
REMARK 465     GLY A   302                                                      
REMARK 465     LYS A   303                                                      
REMARK 465     ALA A   304                                                      
REMARK 465     ALA A   305                                                      
REMARK 465     THR A   306                                                      
REMARK 465     ASP A   307                                                      
REMARK 465     GLY A   308                                                      
REMARK 465     THR A   309                                                      
REMARK 465     THR A   310                                                      
REMARK 465     ASP A   311                                                      
REMARK 465     GLU A   312                                                      
REMARK 465     THR A   313                                                      
REMARK 465     VAL A   314                                                      
REMARK 465     ASP A   315                                                      
REMARK 465     GLY A   316                                                      
REMARK 465     ALA A   317                                                      
REMARK 465     ALA A   318                                                      
REMARK 465     GLU A   319                                                      
REMARK 465     GLU A   320                                                      
REMARK 465     VAL A   321                                                      
REMARK 465     ALA A   322                                                      
REMARK 465     ASN A   323                                                      
REMARK 465     GLY A   324                                                      
REMARK 465     VAL A   325                                                      
REMARK 465     SER A   326                                                      
REMARK 465     LYS A   327                                                      
REMARK 465     VAL A   328                                                      
REMARK 465     LYS A   329                                                      
REMARK 465     LEU A   330                                                      
REMARK 465     ASP A   331                                                      
REMARK 465     GLU A   332                                                      
REMARK 465     ALA A   333                                                      
REMARK 465     GLY A   334                                                      
REMARK 465     ASP A   335                                                      
REMARK 465     GLU A   336                                                      
REMARK 465     ASP A   337                                                      
REMARK 465     LYS A   338                                                      
REMARK 465     ALA A   339                                                      
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   O    HOH A  2358     O    HOH A  2358     9766     2.06            
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    LYS A   3       19.84   -141.12                                   
REMARK 500    MET A  75       47.35    -79.12                                   
REMARK 500    ILE A 158      -51.28   -126.15                                   
REMARK 500    ASP A 160       24.57   -150.64                                   
REMARK 500    ASN A 166       54.18     38.04                                   
REMARK 500    GLU A 185       35.70   -151.90                                   
REMARK 500    ASP A 219       93.17    -64.79                                   
REMARK 500    VAL A 227      102.07     55.63                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2216        DISTANCE =  5.49 ANGSTROMS                       
REMARK 525    HOH A2226        DISTANCE =  5.55 ANGSTROMS                       
REMARK 525    HOH A2241        DISTANCE =  5.26 ANGSTROMS                       
REMARK 525    HOH A2261        DISTANCE =  6.23 ANGSTROMS                       
REMARK 525    HOH A2325        DISTANCE =  5.29 ANGSTROMS                       
REMARK 525    HOH A2337        DISTANCE =  5.63 ANGSTROMS                       
REMARK 525    HOH A2357        DISTANCE =  5.16 ANGSTROMS                       
REMARK 525    HOH A2358        DISTANCE =  5.64 ANGSTROMS                       
REMARK 525    HOH A2361        DISTANCE =  5.86 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A1001  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 185   OE1                                                    
REMARK 620 2 ASP A 211   OD2  93.2                                              
REMARK 620 3 PYR A2001   O3   95.6 163.3                                        
REMARK 620 4 HOH A2036   O    88.8  99.7  94.7                                  
REMARK 620 5 HOH A2245   O   175.9  86.7  83.5  95.2                            
REMARK 620 6 PYR A2001   O1   89.6  86.9  79.0 173.3  86.3                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 1001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PYR A 2001                
DBREF  1IZC A    1   339  UNP    Q9UVD4   Q9UVD4_9ASCO     1    339             
SEQADV 1IZC VAL A  108  UNP  Q9UVD4    ILE   108 ENGINEERED                     
SEQRES   1 A  339  MET ALA LYS SER TYR SER GLU GLN PRO GLU LEU HIS ALA          
SEQRES   2 A  339  LYS ALA PRO TYR ARG SER ALA MET LEU THR TYR PRO GLY          
SEQRES   3 A  339  ASN LEU ARG GLN ALA LEU LYS ASP ALA MET ALA ASP PRO          
SEQRES   4 A  339  SER LYS THR LEU MET GLY VAL ALA HIS GLY ILE PRO SER          
SEQRES   5 A  339  THR PHE VAL THR LYS VAL LEU ALA ALA THR LYS PRO ASP          
SEQRES   6 A  339  PHE VAL TRP ILE ASP VAL GLU HIS GLY MET PHE ASN ARG          
SEQRES   7 A  339  LEU GLU LEU HIS ASP ALA ILE HIS ALA ALA GLN HIS HIS          
SEQRES   8 A  339  SER GLU GLY ARG SER LEU VAL ILE VAL ARG VAL PRO LYS          
SEQRES   9 A  339  HIS ASP GLU VAL SER LEU SER THR ALA LEU ASP ALA GLY          
SEQRES  10 A  339  ALA ALA GLY ILE VAL ILE PRO HIS VAL GLU THR VAL GLU          
SEQRES  11 A  339  GLU VAL ARG GLU PHE VAL LYS GLU MET TYR TYR GLY PRO          
SEQRES  12 A  339  ILE GLY ARG ARG SER PHE SER PRO TRP THR PHE SER PRO          
SEQRES  13 A  339  GLY ILE ALA ASP ALA SER LEU PHE PRO ASN ASP PRO TYR          
SEQRES  14 A  339  ASN VAL ALA THR SER ASN ASN HIS VAL CYS ILE ILE PRO          
SEQRES  15 A  339  GLN ILE GLU SER VAL LYS GLY VAL GLU ASN VAL ASP ALA          
SEQRES  16 A  339  ILE ALA ALA MET PRO GLU ILE HIS GLY LEU MET PHE GLY          
SEQRES  17 A  339  PRO GLY ASP TYR MET ILE ASP ALA GLY LEU ASP LEU ASN          
SEQRES  18 A  339  GLY ALA LEU SER GLY VAL PRO HIS PRO THR PHE VAL GLU          
SEQRES  19 A  339  ALA MET THR LYS PHE SER THR ALA ALA GLN ARG ASN GLY          
SEQRES  20 A  339  VAL PRO ILE PHE GLY GLY ALA LEU SER VAL ASP MET VAL          
SEQRES  21 A  339  PRO SER LEU ILE GLU GLN GLY TYR ARG ALA ILE ALA VAL          
SEQRES  22 A  339  GLN PHE ASP VAL TRP GLY LEU SER ARG LEU VAL HIS GLY          
SEQRES  23 A  339  SER LEU ALA GLN ALA ARG ALA SER ALA LYS GLN PHE ALA          
SEQRES  24 A  339  GLY GLN GLY LYS ALA ALA THR ASP GLY THR THR ASP GLU          
SEQRES  25 A  339  THR VAL ASP GLY ALA ALA GLU GLU VAL ALA ASN GLY VAL          
SEQRES  26 A  339  SER LYS VAL LYS LEU ASP GLU ALA GLY ASP GLU ASP LYS          
SEQRES  27 A  339  ALA                                                          
HET     MG  A1001       1                                                       
HET    PYR  A2001       6                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     PYR PYRUVIC ACID                                                     
FORMUL   2   MG    MG 2+                                                        
FORMUL   3  PYR    C3 H4 O3                                                     
FORMUL   4  HOH   *360(H2 O)                                                    
HELIX    1   1 SER A    4  HIS A   12  5                                   9    
HELIX    2   2 ASN A   27  ASP A   38  1                                  12    
HELIX    3   3 PRO A   39  THR A   42  5                                   4    
HELIX    4   4 SER A   52  THR A   62  1                                  11    
HELIX    5   5 ASN A   77  SER A   92  1                                  16    
HELIX    6   6 ASP A  106  GLY A  117  1                                  12    
HELIX    7   7 THR A  128  TYR A  140  1                                  13    
HELIX    8   8 ASN A  170  VAL A  178  1                                   9    
HELIX    9   9 SER A  186  ASN A  192  1                                   7    
HELIX   10  10 ASN A  192  ALA A  198  1                                   7    
HELIX   11  11 GLY A  208  ALA A  216  1                                   9    
HELIX   12  12 HIS A  229  ASN A  246  1                                  18    
HELIX   13  13 SER A  256  ASP A  258  5                                   3    
HELIX   14  14 MET A  259  GLN A  266  1                                   8    
HELIX   15  15 ASP A  276  LYS A  296  1                                  21    
HELIX   16  16 GLN A  297  ALA A  299  5                                   3    
SHEET    1   A 9 LEU A  43  HIS A  48  0                                        
SHEET    2   A 9 PHE A  66  ASP A  70  1  O  TRP A  68   N  HIS A  48           
SHEET    3   A 9 LEU A  97  ARG A 101  1  O  ILE A  99   N  ILE A  69           
SHEET    4   A 9 GLY A 120  ILE A 123  1  O  GLY A 120   N  VAL A 100           
SHEET    5   A 9 CYS A 179  ILE A 184  1  O  ILE A 181   N  ILE A 121           
SHEET    6   A 9 LEU A 205  PHE A 207  1  O  MET A 206   N  ILE A 184           
SHEET    7   A 9 ILE A 250  GLY A 253  1  O  PHE A 251   N  LEU A 205           
SHEET    8   A 9 TYR A 268  PHE A 275  1  O  ARG A 269   N  ILE A 250           
SHEET    9   A 9 LEU A  43  HIS A  48  1  N  LEU A  43   O  ILE A 271           
LINK        MG    MG A1001                 OE1 GLU A 185     1555   1555  2.08  
LINK        MG    MG A1001                 OD2 ASP A 211     1555   1555  2.13  
LINK        MG    MG A1001                 O3  PYR A2001     1555   1555  2.06  
LINK        MG    MG A1001                 O   HOH A2036     1555   1555  2.19  
LINK        MG    MG A1001                 O   HOH A2245     1555   1555  2.27  
LINK        MG    MG A1001                 O1  PYR A2001     1555   1555  2.17  
CISPEP   1 GLY A  142    PRO A  143          0         0.32                     
SITE     1 AC1  5 GLU A 185  ASP A 211  PYR A2001  HOH A2036                    
SITE     2 AC1  5 HOH A2245                                                     
SITE     1 AC2 11 ARG A 101  GLN A 183  GLU A 185  GLY A 208                    
SITE     2 AC2 11 PRO A 209  GLY A 210  ASP A 211   MG A1001                    
SITE     3 AC2 11 HOH A2068  HOH A2245  HOH A2271                               
CRYST1  106.678  106.678  120.755  90.00  90.00 120.00 P 63 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      0.009374  0.005412  0.000000        0.00000                         
SCALE2      0.000000  0.010824  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008281        0.00000