HEADER    HYDROLASE                               15-OCT-04   1XRT              
TITLE     THE CRYSTAL STRUCTURE OF A NOVEL, LATENT DIHYDROOROTASE FROM AQUIFEX  
TITLE    2 AEOLICUS AT 1.7 A RESOLUTION                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DIHYDROOROTASE;                                            
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: DHOASE;                                                     
COMPND   5 EC: 3.5.2.3;                                                         
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: AQUIFEX AEOLICUS;                               
SOURCE   3 ORGANISM_TAXID: 63363;                                               
SOURCE   4 GENE: PYRC;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    DIHYDROOROTASE, AMIDOHYDROLASE, METALLOENZYME, PYRIMIDINE, HYDROLASE  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    P.D.MARTIN,C.PURCAREA,P.ZHANG,A.VAISHNAV,S.SADECKI,H.I.GUY-EVANS,     
AUTHOR   2 D.R.EVANS,B.F.EDWARDS                                                
REVDAT   6   23-AUG-23 1XRT    1       REMARK SEQADV LINK                       
REVDAT   5   13-JUL-11 1XRT    1       VERSN                                    
REVDAT   4   24-FEB-09 1XRT    1       VERSN                                    
REVDAT   3   09-AUG-05 1XRT    1       JRNL                                     
REVDAT   2   19-JUL-05 1XRT    1       HEADER                                   
REVDAT   1   05-JUL-05 1XRT    0                                                
JRNL        AUTH   P.D.MARTIN,C.PURCAREA,P.ZHANG,A.VAISHNAV,S.SADECKI,          
JRNL        AUTH 2 H.I.GUY-EVANS,D.R.EVANS,B.F.EDWARDS                          
JRNL        TITL   THE CRYSTAL STRUCTURE OF A NOVEL, LATENT DIHYDROOROTASE FROM 
JRNL        TITL 2 AQUIFEX AEOLICUS AT 1.7A RESOLUTION                          
JRNL        REF    J.MOL.BIOL.                   V. 348   535 2005              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   15826652                                                     
JRNL        DOI    10.1016/J.JMB.2005.03.015                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.61 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.61                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 77.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 90961                          
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 + TEST SET) : 0.167                           
REMARK   3   R VALUE            (WORKING SET) : 0.165                           
REMARK   3   FREE R VALUE                     : 0.208                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 4873                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.61                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.65                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 688                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3750                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 37                           
REMARK   3   BIN FREE R VALUE                    : 0.2950                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5699                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 1239                                    
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 18.93                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -2.52000                                             
REMARK   3    B22 (A**2) : -0.81000                                             
REMARK   3    B33 (A**2) : 3.34000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.12000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.097         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.102         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.071         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.250         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.969                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.954                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  5789 ; 0.020 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  5470 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  7815 ; 1.770 ; 1.978       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 12814 ; 0.925 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   730 ; 7.148 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   922 ; 0.112 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  6262 ; 0.008 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  1013 ; 0.005 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1273 ; 0.232 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  6685 ; 0.254 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  3371 ; 0.088 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   676 ; 0.210 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    13 ; 0.254 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    84 ; 0.253 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    46 ; 0.232 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3657 ; 1.102 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  5936 ; 1.907 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2132 ; 3.192 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1879 ; 5.431 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A   422                          
REMARK   3    ORIGIN FOR THE GROUP (A):  58.9000  19.4120  26.5250              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1483 T22:   0.1169                                     
REMARK   3      T33:   0.0051 T12:   0.0112                                     
REMARK   3      T13:  -0.0113 T23:  -0.0197                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.4051 L22:   0.7407                                     
REMARK   3      L33:   0.3014 L12:   0.1065                                     
REMARK   3      L13:   0.0045 L23:   0.0579                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0228 S12:  -0.0231 S13:   0.0362                       
REMARK   3      S21:   0.0739 S22:   0.0379 S23:  -0.0648                       
REMARK   3      S31:   0.0118 S32:   0.0559 S33:  -0.0151                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B     0        B   422                          
REMARK   3    ORIGIN FOR THE GROUP (A):  60.2960  69.8360   3.7800              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1438 T22:   0.1065                                     
REMARK   3      T33:   0.0038 T12:  -0.0018                                     
REMARK   3      T13:   0.0179 T23:  -0.0132                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.6342 L22:   0.6216                                     
REMARK   3      L33:   0.3092 L12:  -0.1185                                     
REMARK   3      L13:  -0.0193 L23:   0.1604                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0187 S12:   0.0112 S13:  -0.0292                       
REMARK   3      S21:   0.0084 S22:   0.0278 S23:  -0.0679                       
REMARK   3      S31:  -0.0087 S32:   0.0484 S33:  -0.0091                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1XRT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-NOV-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000030692.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-FEB-02                          
REMARK 200  TEMPERATURE           (KELVIN) : 93                                 
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU FR-D                        
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : OSMIC MIRRORS                      
REMARK 200  OPTICS                         : OSMIC MIRRORS                      
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS HTC                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU)          
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 95834                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.609                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 79.2                               
REMARK 200  DATA REDUNDANCY                : 6.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.10500                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 4.8000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.61                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.67                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 14.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.00                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.24300                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CCP4 (MOLREP)                                         
REMARK 200 STARTING MODEL: PDB ENTRY 1XRF                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.90                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.75                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: ETHANOL, PEG 400, ACETATE, PH 4.6,       
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
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 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       87.10050            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       45.61750            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       87.10050            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       45.61750            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
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 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   -44                                                      
REMARK 465     ARG A   -43                                                      
REMARK 465     PHE A   -42                                                      
REMARK 465     TRP A   -41                                                      
REMARK 465     GLN A   -40                                                      
REMARK 465     TYR A   -39                                                      
REMARK 465     ILE A   -38                                                      
REMARK 465     ASN A   -37                                                      
REMARK 465     GLY A   -36                                                      
REMARK 465     VAL A   -35                                                      
REMARK 465     ASP A   -34                                                      
REMARK 465     MET A   -33                                                      
REMARK 465     ARG A   -32                                                      
REMARK 465     GLY A   -31                                                      
REMARK 465     SER A   -30                                                      
REMARK 465     HIS A   -29                                                      
REMARK 465     HIS A   -28                                                      
REMARK 465     HIS A   -27                                                      
REMARK 465     HIS A   -26                                                      
REMARK 465     HIS A   -25                                                      
REMARK 465     HIS A   -24                                                      
REMARK 465     GLY A   -23                                                      
REMARK 465     MET A   -22                                                      
REMARK 465     ALA A   -21                                                      
REMARK 465     SER A   -20                                                      
REMARK 465     MET A   -19                                                      
REMARK 465     THR A   -18                                                      
REMARK 465     GLY A   -17                                                      
REMARK 465     GLY A   -16                                                      
REMARK 465     GLN A   -15                                                      
REMARK 465     GLN A   -14                                                      
REMARK 465     MET A   -13                                                      
REMARK 465     GLY A   -12                                                      
REMARK 465     ARG A   -11                                                      
REMARK 465     ASP A   -10                                                      
REMARK 465     LEU A    -9                                                      
REMARK 465     TYR A    -8                                                      
REMARK 465     ASP A    -7                                                      
REMARK 465     ASP A    -6                                                      
REMARK 465     ASP A    -5                                                      
REMARK 465     ASP A    -4                                                      
REMARK 465     LYS A    -3                                                      
REMARK 465     ASP A    -2                                                      
REMARK 465     ARG A    -1                                                      
REMARK 465     TRP A     0                                                      
REMARK 465     GLY A   189                                                      
REMARK 465     VAL A   190                                                      
REMARK 465     ILE A   191                                                      
REMARK 465     ASN A   192                                                      
REMARK 465     GLU A   193                                                      
REMARK 465     GLY A   194                                                      
REMARK 465     GLU A   195                                                      
REMARK 465     VAL A   196                                                      
REMARK 465     SER A   197                                                      
REMARK 465     ALA A   198                                                      
REMARK 465     LEU A   199                                                      
REMARK 465     LEU A   200                                                      
REMARK 465     GLY A   201                                                      
REMARK 465     LEU A   202                                                      
REMARK 465     SER A   203                                                      
REMARK 465     SER A   204                                                      
REMARK 465     ARG A   205                                                      
REMARK 465     ALA A   206                                                      
REMARK 465     PRO A   207                                                      
REMARK 465     GLU A   208                                                      
REMARK 465     PHE A   263                                                      
REMARK 465     THR A   264                                                      
REMARK 465     GLU A   265                                                      
REMARK 465     ARG A   266                                                      
REMARK 465     GLU A   267                                                      
REMARK 465     VAL A   268                                                      
REMARK 465     LEU A   269                                                      
REMARK 465     ASN A   270                                                      
REMARK 465     SER A   271                                                      
REMARK 465     GLY A   272                                                      
REMARK 465     ALA A   273                                                      
REMARK 465     ASN A   274                                                      
REMARK 465     ALA A   275                                                      
REMARK 465     ARG A   276                                                      
REMARK 465     VAL A   277                                                      
REMARK 465     ASN A   278                                                      
REMARK 465     PRO A   279                                                      
REMARK 465     PRO A   280                                                      
REMARK 465     LEU A   281                                                      
REMARK 465     ARG A   282                                                      
REMARK 465     LYS A   283                                                      
REMARK 465     LYS A   284                                                      
REMARK 465     PHE A   312                                                      
REMARK 465     GLU A   313                                                      
REMARK 465     LYS A   314                                                      
REMARK 465     GLU A   315                                                      
REMARK 465     LEU A   316                                                      
REMARK 465     VAL A   317                                                      
REMARK 465     GLU A   318                                                      
REMARK 465     PHE A   319                                                      
REMARK 465     ALA A   320                                                      
REMARK 465     MET A   321                                                      
REMARK 465     PRO A   322                                                      
REMARK 465     MET B   -44                                                      
REMARK 465     ARG B   -43                                                      
REMARK 465     PHE B   -42                                                      
REMARK 465     TRP B   -41                                                      
REMARK 465     GLN B   -40                                                      
REMARK 465     TYR B   -39                                                      
REMARK 465     ILE B   -38                                                      
REMARK 465     ASN B   -37                                                      
REMARK 465     GLY B   -36                                                      
REMARK 465     VAL B   -35                                                      
REMARK 465     ASP B   -34                                                      
REMARK 465     MET B   -33                                                      
REMARK 465     ARG B   -32                                                      
REMARK 465     GLY B   -31                                                      
REMARK 465     SER B   -30                                                      
REMARK 465     HIS B   -29                                                      
REMARK 465     HIS B   -28                                                      
REMARK 465     HIS B   -27                                                      
REMARK 465     HIS B   -26                                                      
REMARK 465     HIS B   -25                                                      
REMARK 465     HIS B   -24                                                      
REMARK 465     GLY B   -23                                                      
REMARK 465     MET B   -22                                                      
REMARK 465     ALA B   -21                                                      
REMARK 465     SER B   -20                                                      
REMARK 465     MET B   -19                                                      
REMARK 465     THR B   -18                                                      
REMARK 465     GLY B   -17                                                      
REMARK 465     GLY B   -16                                                      
REMARK 465     GLN B   -15                                                      
REMARK 465     GLN B   -14                                                      
REMARK 465     MET B   -13                                                      
REMARK 465     GLY B   -12                                                      
REMARK 465     ARG B   -11                                                      
REMARK 465     ASP B   -10                                                      
REMARK 465     LEU B    -9                                                      
REMARK 465     TYR B    -8                                                      
REMARK 465     ASP B    -7                                                      
REMARK 465     ASP B    -6                                                      
REMARK 465     ASP B    -5                                                      
REMARK 465     ASP B    -4                                                      
REMARK 465     LYS B    -3                                                      
REMARK 465     ASP B    -2                                                      
REMARK 465     ARG B    -1                                                      
REMARK 465     TYR B   188                                                      
REMARK 465     GLY B   189                                                      
REMARK 465     VAL B   190                                                      
REMARK 465     ILE B   191                                                      
REMARK 465     ASN B   192                                                      
REMARK 465     GLU B   193                                                      
REMARK 465     GLY B   194                                                      
REMARK 465     GLU B   195                                                      
REMARK 465     VAL B   196                                                      
REMARK 465     SER B   197                                                      
REMARK 465     ALA B   198                                                      
REMARK 465     LEU B   199                                                      
REMARK 465     LEU B   200                                                      
REMARK 465     GLY B   201                                                      
REMARK 465     LEU B   202                                                      
REMARK 465     SER B   203                                                      
REMARK 465     SER B   204                                                      
REMARK 465     ARG B   205                                                      
REMARK 465     ALA B   206                                                      
REMARK 465     PRO B   207                                                      
REMARK 465     PHE B   263                                                      
REMARK 465     THR B   264                                                      
REMARK 465     GLU B   265                                                      
REMARK 465     ARG B   266                                                      
REMARK 465     GLU B   267                                                      
REMARK 465     VAL B   268                                                      
REMARK 465     LEU B   269                                                      
REMARK 465     ASN B   270                                                      
REMARK 465     SER B   271                                                      
REMARK 465     GLY B   272                                                      
REMARK 465     ALA B   273                                                      
REMARK 465     ASN B   274                                                      
REMARK 465     ALA B   275                                                      
REMARK 465     ARG B   276                                                      
REMARK 465     VAL B   277                                                      
REMARK 465     ASN B   278                                                      
REMARK 465     PRO B   279                                                      
REMARK 465     PRO B   280                                                      
REMARK 465     LEU B   281                                                      
REMARK 465     ARG B   282                                                      
REMARK 465     LYS B   283                                                      
REMARK 465     LYS B   284                                                      
REMARK 465     GLU B   285                                                      
REMARK 465     ASP B   286                                                      
REMARK 465     PHE B   312                                                      
REMARK 465     GLU B   313                                                      
REMARK 465     LYS B   314                                                      
REMARK 465     GLU B   315                                                      
REMARK 465     LEU B   316                                                      
REMARK 465     VAL B   317                                                      
REMARK 465     GLU B   318                                                      
REMARK 465     PHE B   319                                                      
REMARK 465     ALA B   320                                                      
REMARK 465     MET B   321                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH B  1501     O    HOH B  1880              1.62            
REMARK 500   O    HOH B  1602     O    HOH B  1885              1.92            
REMARK 500   C    LEU A   262     O    HOH A  1857              1.95            
REMARK 500   NZ   LYS A   414     O    HOH A  1865              1.96            
REMARK 500   O    HOH A  1560     O    HOH A  1876              1.97            
REMARK 500   O    HOH B  1771     O    HOH B  1817              2.00            
REMARK 500   O    LEU A   186     CE1  HIS A   309              2.01            
REMARK 500   CB   SER A   371     O    HOH A  1872              2.03            
REMARK 500   N    ALA A   209     O    HOH A  1859              2.04            
REMARK 500   O    HOH B  1789     O    HOH B  1869              2.07            
REMARK 500   N    GLY A   323     O    HOH A  1867              2.08            
REMARK 500   O    HOH B  1492     O    HOH B  1907              2.08            
REMARK 500   O    HOH A  1479     O    HOH A  1856              2.13            
REMARK 500   O    HOH A  1528     O    HOH A  1949              2.14            
REMARK 500   O    HOH A  1822     O    HOH A  1864              2.16            
REMARK 500   O    HOH A  1578     O    HOH A  1868              2.16            
REMARK 500   O    HOH A  1576     O    HOH A  1868              2.18            
REMARK 500   O    HOH A  1745     O    HOH A  1849              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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  1493     O    HOH B  1889     4545     2.14            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A 153   CB  -  CG  -  OD1 ANGL. DEV. =   5.9 DEGREES          
REMARK 500    LEU B   2   CB  -  CG  -  CD2 ANGL. DEV. =  10.4 DEGREES          
REMARK 500    ASP B  74   CB  -  CG  -  OD1 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ASP B 415   CB  -  CG  -  OD2 ANGL. DEV. =   6.2 DEGREES          
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  61       85.82   -153.74                                   
REMARK 500    ASN A  95       35.63    -85.13                                   
REMARK 500    LEU A 118      -98.79   -105.76                                   
REMARK 500    ASP A 153      133.72    -25.70                                   
REMARK 500    HIS A 180       40.38     83.43                                   
REMARK 500    SER A 234       -3.47   -143.40                                   
REMARK 500    THR A 353      -88.28   -127.58                                   
REMARK 500    ASP A 363       55.96    -92.09                                   
REMARK 500    LEU A 364     -166.21   -117.16                                   
REMARK 500    ASN B  37       81.15     55.08                                   
REMARK 500    HIS B  61       84.94   -152.34                                   
REMARK 500    GLN B  69       52.36   -141.01                                   
REMARK 500    GLU B  73      151.64    179.26                                   
REMARK 500    ASN B  95       40.28    -88.56                                   
REMARK 500    LEU B 118      -94.99   -114.25                                   
REMARK 500    ASP B 153      137.00    -24.50                                   
REMARK 500    HIS B 180       50.43     77.72                                   
REMARK 500    GLN B 310     -126.27    -98.09                                   
REMARK 500    THR B 353      -93.31   -127.88                                   
REMARK 500    ASP B 363       59.82    -90.03                                   
REMARK 500    ARG B 396       18.66   -141.08                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 ASP A  153     GLY A  154                 -143.54                    
REMARK 500 LYS A  185     LEU A  186                  144.35                    
REMARK 500 LEU A  186     ALA A  187                  138.00                    
REMARK 500 ASP B  153     GLY B  154                 -134.24                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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                              ZN A1423  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  61   NE2                                                    
REMARK 620 2 HIS A  63   NE2 111.2                                              
REMARK 620 3 ASP A 153   OD2  96.3 107.0                                        
REMARK 620 4 ASP A 153   OD1 144.6  90.0  49.3                                  
REMARK 620 5 CYS A 181   SG  104.5 124.9 109.3  83.8                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN B1424  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B  61   NE2                                                    
REMARK 620 2 HIS B  63   NE2 109.0                                              
REMARK 620 3 ASP B 153   OD1 146.3  91.9                                        
REMARK 620 4 ASP B 153   OD2  96.8 113.0  50.0                                  
REMARK 620 5 CYS B 181   SG  106.2 123.6  81.5 104.8                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 1423                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 1424                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1XRF   RELATED DB: PDB                                   
REMARK 900 THE CRYSTAL STRUCTURE OF A NOVEL, LATENT DIHYDROOROTASE FROM         
REMARK 900 AQUIFEX AEOLICUS AT 1.7 A RESOLUTION                                 
DBREF  1XRT A    1   422  UNP    O66990   PYRC_AQUAE       1    422             
DBREF  1XRT B    1   422  UNP    O66990   PYRC_AQUAE       1    422             
SEQADV 1XRT MET A  -44  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG A  -43  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT PHE A  -42  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TRP A  -41  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN A  -40  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TYR A  -39  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ILE A  -38  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASN A  -37  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -36  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT VAL A  -35  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A  -34  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET A  -33  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG A  -32  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -31  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT SER A  -30  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -29  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -28  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -27  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -26  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -25  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS A  -24  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -23  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET A  -22  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ALA A  -21  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT SER A  -20  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET A  -19  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT THR A  -18  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -17  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -16  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN A  -15  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN A  -14  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET A  -13  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY A  -12  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG A  -11  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A  -10  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT LEU A   -9  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TYR A   -8  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A   -7  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A   -6  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A   -5  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A   -4  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT LYS A   -3  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP A   -2  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG A   -1  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TRP A    0  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET B  -44  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG B  -43  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT PHE B  -42  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TRP B  -41  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN B  -40  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TYR B  -39  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ILE B  -38  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASN B  -37  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -36  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT VAL B  -35  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B  -34  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET B  -33  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG B  -32  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -31  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT SER B  -30  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -29  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -28  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -27  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -26  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -25  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT HIS B  -24  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -23  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET B  -22  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ALA B  -21  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT SER B  -20  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET B  -19  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT THR B  -18  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -17  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -16  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN B  -15  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLN B  -14  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT MET B  -13  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT GLY B  -12  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG B  -11  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B  -10  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT LEU B   -9  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TYR B   -8  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B   -7  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B   -6  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B   -5  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B   -4  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT LYS B   -3  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ASP B   -2  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT ARG B   -1  UNP  O66990              CLONING ARTIFACT               
SEQADV 1XRT TRP B    0  UNP  O66990              CLONING ARTIFACT               
SEQRES   1 A  467  MET ARG PHE TRP GLN TYR ILE ASN GLY VAL ASP MET ARG          
SEQRES   2 A  467  GLY SER HIS HIS HIS HIS HIS HIS GLY MET ALA SER MET          
SEQRES   3 A  467  THR GLY GLY GLN GLN MET GLY ARG ASP LEU TYR ASP ASP          
SEQRES   4 A  467  ASP ASP LYS ASP ARG TRP MET LEU LYS LEU ILE VAL LYS          
SEQRES   5 A  467  ASN GLY TYR VAL ILE ASP PRO SER GLN ASN LEU GLU GLY          
SEQRES   6 A  467  GLU PHE ASP ILE LEU VAL GLU ASN GLY LYS ILE LYS LYS          
SEQRES   7 A  467  ILE ASP LYS ASN ILE LEU VAL PRO GLU ALA GLU ILE ILE          
SEQRES   8 A  467  ASP ALA LYS GLY LEU ILE VAL CYS PRO GLY PHE ILE ASP          
SEQRES   9 A  467  ILE HIS VAL HIS LEU ARG ASP PRO GLY GLN THR TYR LYS          
SEQRES  10 A  467  GLU ASP ILE GLU SER GLY SER ARG CYS ALA VAL ALA GLY          
SEQRES  11 A  467  GLY PHE THR THR ILE VAL CYS MET PRO ASN THR ASN PRO          
SEQRES  12 A  467  PRO ILE ASP ASN THR THR VAL VAL ASN TYR ILE LEU GLN          
SEQRES  13 A  467  LYS SER LYS SER VAL GLY LEU CYS ARG VAL LEU PRO THR          
SEQRES  14 A  467  GLY THR ILE THR LYS GLY ARG LYS GLY LYS GLU ILE ALA          
SEQRES  15 A  467  ASP PHE TYR SER LEU LYS GLU ALA GLY CYS VAL ALA PHE          
SEQRES  16 A  467  THR ASP ASP GLY SER PRO VAL MET ASP SER SER VAL MET          
SEQRES  17 A  467  ARG LYS ALA LEU GLU LEU ALA SER GLN LEU GLY VAL PRO          
SEQRES  18 A  467  ILE MET ASP HIS CYS GLU ASP ASP LYS LEU ALA TYR GLY          
SEQRES  19 A  467  VAL ILE ASN GLU GLY GLU VAL SER ALA LEU LEU GLY LEU          
SEQRES  20 A  467  SER SER ARG ALA PRO GLU ALA GLU GLU ILE GLN ILE ALA          
SEQRES  21 A  467  ARG ASP GLY ILE LEU ALA GLN ARG THR GLY GLY HIS VAL          
SEQRES  22 A  467  HIS ILE GLN HIS VAL SER THR LYS LEU SER LEU GLU ILE          
SEQRES  23 A  467  ILE GLU PHE PHE LYS GLU LYS GLY VAL LYS ILE THR CYS          
SEQRES  24 A  467  GLU VAL ASN PRO ASN HIS LEU LEU PHE THR GLU ARG GLU          
SEQRES  25 A  467  VAL LEU ASN SER GLY ALA ASN ALA ARG VAL ASN PRO PRO          
SEQRES  26 A  467  LEU ARG LYS LYS GLU ASP ARG LEU ALA LEU ILE GLU GLY          
SEQRES  27 A  467  VAL LYS ARG GLY ILE ILE ASP CYS PHE ALA THR ASP HIS          
SEQRES  28 A  467  ALA PRO HIS GLN THR PHE GLU LYS GLU LEU VAL GLU PHE          
SEQRES  29 A  467  ALA MET PRO GLY ILE ILE GLY LEU GLN THR ALA LEU PRO          
SEQRES  30 A  467  SER ALA LEU GLU LEU TYR ARG LYS GLY ILE ILE SER LEU          
SEQRES  31 A  467  LYS LYS LEU ILE GLU MET PHE THR ILE ASN PRO ALA ARG          
SEQRES  32 A  467  ILE ILE GLY VAL ASP LEU GLY THR LEU LYS LEU GLY SER          
SEQRES  33 A  467  PRO ALA ASP ILE THR ILE PHE ASP PRO ASN LYS GLU TRP          
SEQRES  34 A  467  ILE LEU ASN GLU GLU THR ASN LEU SER LYS SER ARG ASN          
SEQRES  35 A  467  THR PRO LEU TRP GLY LYS VAL LEU LYS GLY LYS VAL ILE          
SEQRES  36 A  467  TYR THR ILE LYS ASP GLY LYS MET VAL TYR LYS ASP              
SEQRES   1 B  467  MET ARG PHE TRP GLN TYR ILE ASN GLY VAL ASP MET ARG          
SEQRES   2 B  467  GLY SER HIS HIS HIS HIS HIS HIS GLY MET ALA SER MET          
SEQRES   3 B  467  THR GLY GLY GLN GLN MET GLY ARG ASP LEU TYR ASP ASP          
SEQRES   4 B  467  ASP ASP LYS ASP ARG TRP MET LEU LYS LEU ILE VAL LYS          
SEQRES   5 B  467  ASN GLY TYR VAL ILE ASP PRO SER GLN ASN LEU GLU GLY          
SEQRES   6 B  467  GLU PHE ASP ILE LEU VAL GLU ASN GLY LYS ILE LYS LYS          
SEQRES   7 B  467  ILE ASP LYS ASN ILE LEU VAL PRO GLU ALA GLU ILE ILE          
SEQRES   8 B  467  ASP ALA LYS GLY LEU ILE VAL CYS PRO GLY PHE ILE ASP          
SEQRES   9 B  467  ILE HIS VAL HIS LEU ARG ASP PRO GLY GLN THR TYR LYS          
SEQRES  10 B  467  GLU ASP ILE GLU SER GLY SER ARG CYS ALA VAL ALA GLY          
SEQRES  11 B  467  GLY PHE THR THR ILE VAL CYS MET PRO ASN THR ASN PRO          
SEQRES  12 B  467  PRO ILE ASP ASN THR THR VAL VAL ASN TYR ILE LEU GLN          
SEQRES  13 B  467  LYS SER LYS SER VAL GLY LEU CYS ARG VAL LEU PRO THR          
SEQRES  14 B  467  GLY THR ILE THR LYS GLY ARG LYS GLY LYS GLU ILE ALA          
SEQRES  15 B  467  ASP PHE TYR SER LEU LYS GLU ALA GLY CYS VAL ALA PHE          
SEQRES  16 B  467  THR ASP ASP GLY SER PRO VAL MET ASP SER SER VAL MET          
SEQRES  17 B  467  ARG LYS ALA LEU GLU LEU ALA SER GLN LEU GLY VAL PRO          
SEQRES  18 B  467  ILE MET ASP HIS CYS GLU ASP ASP LYS LEU ALA TYR GLY          
SEQRES  19 B  467  VAL ILE ASN GLU GLY GLU VAL SER ALA LEU LEU GLY LEU          
SEQRES  20 B  467  SER SER ARG ALA PRO GLU ALA GLU GLU ILE GLN ILE ALA          
SEQRES  21 B  467  ARG ASP GLY ILE LEU ALA GLN ARG THR GLY GLY HIS VAL          
SEQRES  22 B  467  HIS ILE GLN HIS VAL SER THR LYS LEU SER LEU GLU ILE          
SEQRES  23 B  467  ILE GLU PHE PHE LYS GLU LYS GLY VAL LYS ILE THR CYS          
SEQRES  24 B  467  GLU VAL ASN PRO ASN HIS LEU LEU PHE THR GLU ARG GLU          
SEQRES  25 B  467  VAL LEU ASN SER GLY ALA ASN ALA ARG VAL ASN PRO PRO          
SEQRES  26 B  467  LEU ARG LYS LYS GLU ASP ARG LEU ALA LEU ILE GLU GLY          
SEQRES  27 B  467  VAL LYS ARG GLY ILE ILE ASP CYS PHE ALA THR ASP HIS          
SEQRES  28 B  467  ALA PRO HIS GLN THR PHE GLU LYS GLU LEU VAL GLU PHE          
SEQRES  29 B  467  ALA MET PRO GLY ILE ILE GLY LEU GLN THR ALA LEU PRO          
SEQRES  30 B  467  SER ALA LEU GLU LEU TYR ARG LYS GLY ILE ILE SER LEU          
SEQRES  31 B  467  LYS LYS LEU ILE GLU MET PHE THR ILE ASN PRO ALA ARG          
SEQRES  32 B  467  ILE ILE GLY VAL ASP LEU GLY THR LEU LYS LEU GLY SER          
SEQRES  33 B  467  PRO ALA ASP ILE THR ILE PHE ASP PRO ASN LYS GLU TRP          
SEQRES  34 B  467  ILE LEU ASN GLU GLU THR ASN LEU SER LYS SER ARG ASN          
SEQRES  35 B  467  THR PRO LEU TRP GLY LYS VAL LEU LYS GLY LYS VAL ILE          
SEQRES  36 B  467  TYR THR ILE LYS ASP GLY LYS MET VAL TYR LYS ASP              
HET     ZN  A1423       1                                                       
HET     ZN  B1424       1                                                       
HETNAM      ZN ZINC ION                                                         
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   5  HOH   *1239(H2 O)                                                   
HELIX    1   1 PRO A   14  ASN A   17  5                                   4    
HELIX    2   2 ASP A   74  GLY A   85  1                                  12    
HELIX    3   3 ASN A  102  GLY A  117  1                                  16    
HELIX    4   4 THR A  128  LYS A  132  5                                   5    
HELIX    5   5 ASP A  138  GLY A  146  1                                   9    
HELIX    6   6 ASP A  159  GLY A  174  1                                  16    
HELIX    7   7 GLU A  182  ALA A  187  5                                   6    
HELIX    8   8 ALA A  209  GLY A  225  1                                  17    
HELIX    9   9 THR A  235  LYS A  248  1                                  14    
HELIX   10  10 ASN A  257  LEU A  262  5                                   6    
HELIX   11  11 ASP A  286  ARG A  296  1                                  11    
HELIX   12  12 GLY A  326  GLN A  328  5                                   3    
HELIX   13  13 THR A  329  LYS A  340  1                                  12    
HELIX   14  14 SER A  344  THR A  353  1                                  10    
HELIX   15  15 THR A  353  GLY A  361  1                                   9    
HELIX   16  16 PRO B   14  ASN B   17  5                                   4    
HELIX   17  17 ASP B   74  GLY B   85  1                                  12    
HELIX   18  18 ASN B  102  GLY B  117  1                                  16    
HELIX   19  19 THR B  128  LYS B  132  5                                   5    
HELIX   20  20 ASP B  138  GLY B  146  1                                   9    
HELIX   21  21 ASP B  159  GLY B  174  1                                  16    
HELIX   22  22 GLU B  182  LEU B  186  5                                   5    
HELIX   23  23 GLU B  208  GLY B  225  1                                  18    
HELIX   24  24 THR B  235  LYS B  248  1                                  14    
HELIX   25  25 ASN B  257  LEU B  262  5                                   6    
HELIX   26  26 ARG B  287  ARG B  296  1                                  10    
HELIX   27  27 GLY B  326  GLN B  328  5                                   3    
HELIX   28  28 THR B  329  LYS B  340  1                                  12    
HELIX   29  29 SER B  344  THR B  353  1                                  10    
HELIX   30  30 THR B  353  GLY B  361  1                                   9    
SHEET    1   A 4 LYS A  30  ASP A  35  0                                        
SHEET    2   A 4 ASP A  23  GLU A  27 -1  N  LEU A  25   O  LYS A  33           
SHEET    3   A 4 LYS A   3  LYS A   7 -1  N  LEU A   4   O  VAL A  26           
SHEET    4   A 4 ALA A  43  ASP A  47  1  O  GLU A  44   N  ILE A   5           
SHEET    1   B 6 LEU A  18  GLU A  21  0                                        
SHEET    2   B 6 TYR A  10  ASP A  13 -1  N  ASP A  13   O  LEU A  18           
SHEET    3   B 6 ILE A  52  PRO A  55  1  O  VAL A  53   N  ILE A  12           
SHEET    4   B 6 ILE A 375  ILE A 385 -1  O  PHE A 378   N  ILE A  52           
SHEET    5   B 6 VAL A 404  LYS A 414 -1  O  LEU A 405   N  TRP A 384           
SHEET    6   B 6 LYS A 417  LYS A 421 -1  O  LYS A 417   N  LYS A 414           
SHEET    1   C 3 PHE A  57  VAL A  62  0                                        
SHEET    2   C 3 PHE A  87  CYS A  92  1  O  VAL A  91   N  ASP A  59           
SHEET    3   C 3 ARG A 120  PRO A 123  1  O  LEU A 122   N  ILE A  90           
SHEET    1   D 4 PRO A 176  ASP A 179  0                                        
SHEET    2   D 4 HIS A 227  ILE A 230  1  O  HIS A 229   N  ILE A 177           
SHEET    3   D 4 ILE A 252  VAL A 256  1  O  THR A 253   N  ILE A 230           
SHEET    4   D 4 CYS A 301  PHE A 302  1  O  CYS A 301   N  VAL A 256           
SHEET    1   E 4 LYS B  30  ASP B  35  0                                        
SHEET    2   E 4 ASP B  23  GLU B  27 -1  N  LEU B  25   O  LYS B  33           
SHEET    3   E 4 LYS B   3  LYS B   7 -1  N  LEU B   4   O  VAL B  26           
SHEET    4   E 4 ALA B  43  ASP B  47  1  O  ILE B  46   N  LYS B   7           
SHEET    1   F 6 LEU B  18  GLU B  21  0                                        
SHEET    2   F 6 TYR B  10  ASP B  13 -1  N  ASP B  13   O  LEU B  18           
SHEET    3   F 6 ILE B  52  PRO B  55  1  O  VAL B  53   N  ILE B  12           
SHEET    4   F 6 ILE B 375  ILE B 385 -1  O  PHE B 378   N  ILE B  52           
SHEET    5   F 6 VAL B 404  LYS B 414 -1  O  LEU B 405   N  TRP B 384           
SHEET    6   F 6 LYS B 417  LYS B 421 -1  O  VAL B 419   N  THR B 412           
SHEET    1   G 3 PHE B  57  VAL B  62  0                                        
SHEET    2   G 3 PHE B  87  CYS B  92  1  O  VAL B  91   N  ASP B  59           
SHEET    3   G 3 ARG B 120  PRO B 123  1  O  LEU B 122   N  ILE B  90           
SHEET    1   H 4 ILE B 177  ASP B 179  0                                        
SHEET    2   H 4 VAL B 228  ILE B 230  1  O  HIS B 229   N  ILE B 177           
SHEET    3   H 4 ILE B 252  VAL B 256  1  O  THR B 253   N  ILE B 230           
SHEET    4   H 4 CYS B 301  PHE B 302  1  O  CYS B 301   N  VAL B 256           
LINK         NE2 HIS A  61                ZN    ZN A1423     1555   1555  2.10  
LINK         NE2 HIS A  63                ZN    ZN A1423     1555   1555  2.16  
LINK         OD2 ASP A 153                ZN    ZN A1423     1555   1555  2.17  
LINK         OD1 ASP A 153                ZN    ZN A1423     1555   1555  2.76  
LINK         SG  CYS A 181                ZN    ZN A1423     1555   1555  2.30  
LINK         NE2 HIS B  61                ZN    ZN B1424     1555   1555  2.11  
LINK         NE2 HIS B  63                ZN    ZN B1424     1555   1555  2.27  
LINK         OD1 ASP B 153                ZN    ZN B1424     1555   1555  2.73  
LINK         OD2 ASP B 153                ZN    ZN B1424     1555   1555  2.14  
LINK         SG  CYS B 181                ZN    ZN B1424     1555   1555  2.28  
CISPEP   1 ASP A   66    PRO A   67          0         4.60                     
CISPEP   2 ASN A   97    PRO A   98          0         1.45                     
CISPEP   3 ASP B   66    PRO B   67          0         8.94                     
CISPEP   4 ASN B   97    PRO B   98          0         0.30                     
SITE     1 AC1  5 HIS A  61  HIS A  63  ASP A 153  CYS A 181                    
SITE     2 AC1  5 ASP A 305                                                     
SITE     1 AC2  5 HIS B  61  HIS B  63  ASP B 153  CYS B 181                    
SITE     2 AC2  5 ASP B 305                                                     
CRYST1  174.201   91.235   61.183  90.00  93.15  90.00 C 1 2 1       8          
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      0.005740  0.000000  0.000316        0.00000                         
SCALE2      0.000000  0.010961  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016369        0.00000