HEADER    OXIDOREDUCTASE                          27-MAR-00   1EP2              
TITLE     CRYSTAL STRUCTURE OF LACTOCOCCUS LACTIS DIHYDROOROTATE DEHYDROGENASE B
TITLE    2 COMPLEXED WITH OROTATE                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DIHYDROOROTATE DEHYDROGENASE B (PYRD SUBUNIT);             
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 1.3.3.1;                                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: DIHYDROOROTATE DEHYDROGENASE B (PYRK SUBUNIT);             
COMPND   8 CHAIN: B;                                                            
COMPND   9 EC: 1.3.3.1;                                                         
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: LACTOCOCCUS LACTIS;                             
SOURCE   3 ORGANISM_TAXID: 1358;                                                
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 MOL_ID: 2;                                                           
SOURCE   7 ORGANISM_SCIENTIFIC: LACTOCOCCUS LACTIS;                             
SOURCE   8 ORGANISM_TAXID: 1358;                                                
SOURCE   9 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  10 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    HETEROTETRAMER, OXIDOREDUCTASE                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    P.ROWLAND,S.NORAGER,K.F.JENSEN,S.LARSEN                               
REVDAT   4   07-FEB-24 1EP2    1       REMARK SEQADV SHEET                      
REVDAT   3   13-JUL-11 1EP2    1       VERSN                                    
REVDAT   2   24-FEB-09 1EP2    1       VERSN                                    
REVDAT   1   17-JAN-01 1EP2    0                                                
JRNL        AUTH   P.ROWLAND,S.NORAGER,K.F.JENSEN,S.LARSEN                      
JRNL        TITL   STRUCTURE OF DIHYDROOROTATE DEHYDROGENASE B: ELECTRON        
JRNL        TITL 2 TRANSFER BETWEEN TWO FLAVIN GROUPS BRIDGED BY AN             
JRNL        TITL 3 IRON-SULPHUR CLUSTER.                                        
JRNL        REF    STRUCTURE FOLD.DES.           V.   8  1227 2000              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   11188687                                                     
JRNL        DOI    10.1016/S0969-2126(00)00530-X                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 38.50                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 86.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 21335                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.190                           
REMARK   3   FREE R VALUE                     : 0.241                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1036                            
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
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            : 4255                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 99                                      
REMARK   3   SOLVENT ATOMS            : 144                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 34.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.009                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.639                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
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  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 1EP2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-APR-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000010786.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 31-JAN-97                          
REMARK 200  TEMPERATURE           (KELVIN) : 288                                
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 RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS II                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 21335                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 38.500                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 86.0                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : 0.09900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.44                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.49700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.50                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.59                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 2.4 M AMMONIUM SULFATE, 0.1 M SODIUM     
REMARK 280  ACETATE, PH 4.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 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   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290       7555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       8555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       9555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290      10555   Y+2/3,X+1/3,-Z+1/3                                      
REMARK 290      11555   X-Y+2/3,-Y+1/3,-Z+1/3                                   
REMARK 290      12555   -X+2/3,-X+Y+1/3,-Z+1/3                                  
REMARK 290      13555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290      14555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290      15555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290      16555   Y+1/3,X+2/3,-Z+2/3                                      
REMARK 290      17555   X-Y+1/3,-Y+2/3,-Z+2/3                                   
REMARK 290      18555   -X+1/3,-X+Y+2/3,-Z+2/3                                  
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 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
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        0.00000            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000      101.21000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       58.43362            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       26.96000            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000      101.21000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       58.43362            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       26.96000            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000      101.21000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       58.43362            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       26.96000            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000      101.21000            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       58.43362            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       26.96000            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000      101.21000            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       58.43362            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       26.96000            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000      101.21000            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       58.43362            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       26.96000            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000      116.86724            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000       53.92000            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000      116.86724            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000       53.92000            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000      116.86724            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000       53.92000            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000      116.86724            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000       53.92000            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000      116.86724            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000       53.92000            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000      116.86724            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000       53.92000            
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A HETEROTETRAMER. THERE           
REMARK 300 IS A CRYSTALLOGRAPHIC TWO-FOLD AXIS THROUGH THE CENTER               
REMARK 300 OF THE HETEROTETRAMER, PASSING THROUGH A SMALL HYDROPHOBIC           
REMARK 300 CAVITY BETWEEN THE TWO CHAIN A MOLECULES OF THE                      
REMARK 300 HETEROTETRAMER AT APPROXIMATE COORDINATES                            
REMARK 300 (47.61, 34.32, 13.52). THE HETEROTETRAMER IS HELD TOGETHER           
REMARK 300 BY THE TWO CHAIN A MOLECULES, WITH THE TWO CHAIN B                   
REMARK 300 MOLECULES MAKING FEW CLOSE CONTACTS WITH EACH OTHER.                 
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 14480 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 41340 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -102.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 350   BIOMT1   2 -0.500000 -0.866025  0.000000      101.21000            
REMARK 350   BIOMT2   2 -0.866025  0.500000  0.000000       58.43362            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       26.96000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A1140  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A1141  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A1142  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B1143  LIES ON A SPECIAL POSITION.                          
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     THR A     2                                                      
REMARK 465     VAL A   138                                                      
REMARK 465     LYS A   139                                                      
REMARK 465     HIS A   140                                                      
REMARK 465     GLY A   141                                                      
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    ALA A  73       58.00   -150.42                                   
REMARK 500    PRO A 136      -89.83    -58.83                                   
REMARK 500    GLN A 143      -44.89    102.06                                   
REMARK 500    ILE A 216      -71.79     72.46                                   
REMARK 500    ASP A 239       35.28   -149.88                                   
REMARK 500    LYS A 310      -78.78   -103.52                                   
REMARK 500    TYR B  18      109.32    -57.21                                   
REMARK 500    ASP B  34      -31.76   -154.35                                   
REMARK 500    PRO B  45       43.59    -71.24                                   
REMARK 500    GLU B 106       26.87   -150.30                                   
REMARK 500    GLN B 138      133.37    -38.26                                   
REMARK 500    LEU B 153       13.80     56.09                                   
REMARK 500    ASP B 170      -71.50    -51.63                                   
REMARK 500    ASP B 171      -63.73   -108.72                                   
REMARK 500    TYR B 174      -60.26   -138.64                                   
REMARK 500    PHE B 189      161.70    -49.89                                   
REMARK 500    CYS B 197      115.48   -164.86                                   
REMARK 500    ALA B 225      -74.40   -141.75                                   
REMARK 500    CYS B 234       46.49    -82.78                                   
REMARK 500    ASP B 238     -151.77    -81.20                                   
REMARK 500    LYS B 239       87.29    -60.31                                   
REMARK 500    GLU B 240      148.22     75.74                                   
REMARK 500    SER B 243     -159.86    -76.43                                   
REMARK 500    LYS B 258     -155.39     64.36                                   
REMARK 500    LEU B 260      120.15     80.52                                   
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                             FES B 504  FE1                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 226   SG                                                     
REMARK 620 2 FES B 504   S1  113.2                                              
REMARK 620 3 FES B 504   S2  108.6 106.0                                        
REMARK 620 4 CYS B 231   SG  108.1 110.4 110.6                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             FES B 504  FE2                           
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS B 234   SG                                                     
REMARK 620 2 FES B 504   S1  123.0                                              
REMARK 620 3 FES B 504   S2  114.2 104.1                                        
REMARK 620 4 CYS B 249   SG  103.1 105.5 105.3                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FMN A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ORO A 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FAD B 503                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FES B 504                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1EP1   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF LACTOCOCCUS LACTIS DIHYDROOROTATE               
REMARK 900 DEHYDROGENASE B AT ROOM TEMPERATURE.                                 
REMARK 900 RELATED ID: 1EP3   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF LACTOCOCCUS LACTIS DIHYDROOROTATE               
REMARK 900 DEHYDROGENASE B. DATA COLLECTED UNDER CRYOGENIC CONDITIONS.          
DBREF  1EP2 A    1   311  UNP    P54322   PYRDB_LACLC      1    311             
DBREF  1EP2 B    2   262  UNP    P56968   PYRK_LACLC       2    262             
SEQADV 1EP2 ALA A  123  UNP  P54322    ARG   123 CONFLICT                       
SEQADV 1EP2 ASP A  255  UNP  P54322    VAL   255 CONFLICT                       
SEQADV 1EP2 ALA A  266  UNP  P54322    ARG   266 CONFLICT                       
SEQRES   1 A  311  MET THR GLU ASN ASN ARG LEU SER VAL LYS LEU PRO GLY          
SEQRES   2 A  311  LEU ASP LEU LYS ASN PRO ILE ILE PRO ALA SER GLY CYS          
SEQRES   3 A  311  PHE GLY PHE GLY GLU GLU TYR ALA LYS TYR TYR ASP LEU          
SEQRES   4 A  311  ASN LYS LEU GLY SER ILE MET VAL LYS ALA THR THR LEU          
SEQRES   5 A  311  HIS PRO ARG PHE GLY ASN PRO THR PRO ARG VAL ALA GLU          
SEQRES   6 A  311  THR ALA SER GLY MET LEU ASN ALA ILE GLY LEU GLN ASN          
SEQRES   7 A  311  PRO GLY LEU GLU VAL ILE MET THR GLU LYS LEU PRO TRP          
SEQRES   8 A  311  LEU ASN GLU ASN PHE PRO GLU LEU PRO ILE ILE ALA ASN          
SEQRES   9 A  311  VAL ALA GLY SER GLU GLU ALA ASP TYR VAL ALA VAL CYS          
SEQRES  10 A  311  ALA LYS ILE GLY ASP ALA ALA ASN VAL LYS ALA ILE GLU          
SEQRES  11 A  311  LEU ASN ILE SER CYS PRO ASN VAL LYS HIS GLY GLY GLN          
SEQRES  12 A  311  ALA PHE GLY THR ASP PRO GLU VAL ALA ALA ALA LEU VAL          
SEQRES  13 A  311  LYS ALA CYS LYS ALA VAL SER LYS VAL PRO LEU TYR VAL          
SEQRES  14 A  311  LYS LEU SER PRO ASN VAL THR ASP ILE VAL PRO ILE ALA          
SEQRES  15 A  311  LYS ALA VAL GLU ALA ALA GLY ALA ASP GLY LEU THR MET          
SEQRES  16 A  311  ILE ASN THR LEU MET GLY VAL ARG PHE ASP LEU LYS THR          
SEQRES  17 A  311  ARG GLN PRO ILE LEU ALA ASN ILE THR GLY GLY LEU SER          
SEQRES  18 A  311  GLY PRO ALA ILE LYS PRO VAL ALA LEU LYS LEU ILE HIS          
SEQRES  19 A  311  GLN VAL ALA GLN ASP VAL ASP ILE PRO ILE ILE GLY MET          
SEQRES  20 A  311  GLY GLY VAL ALA ASN ALA GLN ASP VAL LEU GLU MET TYR          
SEQRES  21 A  311  MET ALA GLY ALA SER ALA VAL ALA VAL GLY THR ALA ASN          
SEQRES  22 A  311  PHE ALA ASP PRO PHE VAL CYS PRO LYS ILE ILE ASP LYS          
SEQRES  23 A  311  LEU PRO GLU LEU MET ASP GLN TYR ARG ILE GLU SER LEU          
SEQRES  24 A  311  GLU SER LEU ILE GLN GLU VAL LYS GLU GLY LYS LYS              
SEQRES   1 B  261  SER GLN LEU GLN GLU MET MET THR VAL VAL SER GLN ARG          
SEQRES   2 B  261  GLU VAL ALA TYR ASN ILE PHE GLU MET VAL LEU LYS GLY          
SEQRES   3 B  261  THR LEU VAL ASP GLU MET ASP LEU PRO GLY GLN PHE LEU          
SEQRES   4 B  261  HIS LEU ALA VAL PRO ASN GLY ALA MET LEU LEU ARG ARG          
SEQRES   5 B  261  PRO ILE SER ILE SER SER TRP ASP LYS ARG ALA LYS THR          
SEQRES   6 B  261  CYS THR ILE LEU TYR ARG ILE GLY ASP GLU THR THR GLY          
SEQRES   7 B  261  THR TYR LYS LEU SER LYS LEU GLU SER GLY ALA LYS VAL          
SEQRES   8 B  261  ASP VAL MET GLY PRO LEU GLY ASN GLY PHE PRO VAL ALA          
SEQRES   9 B  261  GLU VAL THR SER THR ASP LYS ILE LEU ILE ILE GLY GLY          
SEQRES  10 B  261  GLY ILE GLY VAL PRO PRO LEU TYR GLU LEU ALA LYS GLN          
SEQRES  11 B  261  LEU GLU LYS THR GLY CYS GLN MET THR ILE LEU LEU GLY          
SEQRES  12 B  261  PHE ALA SER GLU ASN VAL LYS ILE LEU GLU ASN GLU PHE          
SEQRES  13 B  261  SER ASN LEU LYS ASN VAL THR LEU LYS ILE ALA THR ASP          
SEQRES  14 B  261  ASP GLY SER TYR GLY THR LYS GLY HIS VAL GLY MET LEU          
SEQRES  15 B  261  MET ASN GLU ILE ASP PHE GLU VAL ASP ALA LEU TYR THR          
SEQRES  16 B  261  CYS GLY ALA PRO ALA MET LEU LYS ALA VAL ALA LYS LYS          
SEQRES  17 B  261  TYR ASP GLN LEU GLU ARG LEU TYR ILE SER MET GLU SER          
SEQRES  18 B  261  ARG MET ALA CYS GLY ILE GLY ALA CYS TYR ALA CYS VAL          
SEQRES  19 B  261  GLU HIS ASP LYS GLU ASP GLU SER HIS ALA LEU LYS VAL          
SEQRES  20 B  261  CYS GLU ASP GLY PRO VAL PHE LEU GLY LYS GLN LEU SER          
SEQRES  21 B  261  LEU                                                          
HET    FMN  A 501      31                                                       
HET    ORO  A 502      11                                                       
HET    FAD  B 503      53                                                       
HET    FES  B 504       4                                                       
HETNAM     FMN FLAVIN MONONUCLEOTIDE                                            
HETNAM     ORO OROTIC ACID                                                      
HETNAM     FAD FLAVIN-ADENINE DINUCLEOTIDE                                      
HETNAM     FES FE2/S2 (INORGANIC) CLUSTER                                       
HETSYN     FMN RIBOFLAVIN MONOPHOSPHATE                                         
FORMUL   3  FMN    C17 H21 N4 O9 P                                              
FORMUL   4  ORO    C5 H4 N2 O4                                                  
FORMUL   5  FAD    C27 H33 N9 O15 P2                                            
FORMUL   6  FES    FE2 S2                                                       
FORMUL   7  HOH   *144(H2 O)                                                    
HELIX    1   1 ASN A    4  SER A    8  5                                   5    
HELIX    2   2 GLY A   30  LYS A   35  1                                   6    
HELIX    3   3 ASP A   38  LEU A   42  5                                   5    
HELIX    4   4 PRO A   79  GLU A   87  1                                   9    
HELIX    5   5 GLU A   87  PHE A   96  1                                  10    
HELIX    6   6 GLU A  109  GLY A  121  1                                  13    
HELIX    7   7 ASP A  148  SER A  163  1                                  16    
HELIX    8   8 ILE A  178  ALA A  188  1                                  11    
HELIX    9   9 GLY A  222  ALA A  224  5                                   3    
HELIX   10  10 ILE A  225  GLN A  238  1                                  14    
HELIX   11  11 ASN A  252  GLY A  263  1                                  12    
HELIX   12  12 THR A  271  ASP A  276  1                                   6    
HELIX   13  13 PHE A  278  TYR A  294  1                                  17    
HELIX   14  14 SER A  298  GLY A  309  1                                  12    
HELIX   15  15 THR B   28  MET B   33  5                                   6    
HELIX   16  16 THR B   78  SER B   84  1                                   7    
HELIX   17  17 GLY B  121  LYS B  134  1                                  14    
HELIX   18  18 LEU B  153  SER B  158  1                                   6    
HELIX   19  19 HIS B  179  ILE B  187  1                                   9    
HELIX   20  20 ALA B  199  TYR B  210  1                                  12    
SHEET    1   A 2 VAL A   9  LEU A  11  0                                        
SHEET    2   A 2 LEU A  14  LEU A  16 -1  O  LEU A  14   N  LEU A  11           
SHEET    1   B 7 ILE A  20  PRO A  22  0                                        
SHEET    2   B 7 ILE A 244  GLY A 246  0                                        
SHEET    3   B 7 GLY A 192  MET A 195  1  O  LEU A 193   N  ILE A 245           
SHEET    4   B 7 LEU A 167  LYS A 170  1  O  LEU A 167   N  GLY A 192           
SHEET    5   B 7 VAL A 126  ASN A 132  1  O  ILE A 129   N  TYR A 168           
SHEET    6   B 7 ILE A 101  VAL A 105  1  O  ILE A 101   N  LYS A 127           
SHEET    7   B 7 ILE A  45  MET A  46  1  O  ILE A  45   N  ILE A 102           
SHEET    1   C 4 VAL A  63  THR A  66  0                                        
SHEET    2   C 4 GLY A  69  ASN A  72 -1  O  GLY A  69   N  THR A  66           
SHEET    3   C 4 GLY A 218  SER A 221 -1  N  GLY A 219   O  ASN A  72           
SHEET    4   C 4 LEU A 199  GLY A 201 -1  O  LEU A 199   N  LEU A 220           
SHEET    1   D 2 PHE A 204  ASP A 205  0                                        
SHEET    2   D 2 GLN A 210  PRO A 211 -1  O  GLN A 210   N  ASP A 205           
SHEET    1   E 7 ARG B  53  SER B  56  0                                        
SHEET    2   E 7 PHE B  39  LEU B  42 -1  O  LEU B  40   N  ILE B  55           
SHEET    3   E 7 LYS B  91  LEU B  98 -1  O  MET B  95   N  HIS B  41           
SHEET    4   E 7 GLN B   5  ALA B  17 -1  O  GLU B   6   N  VAL B  94           
SHEET    5   E 7 ILE B  20  LYS B  26 -1  N  ILE B  20   O  ALA B  17           
SHEET    6   E 7 THR B  66  ARG B  72 -1  O  CYS B  67   N  LEU B  25           
SHEET    7   E 7 SER B  59  ASP B  61 -1  O  SER B  59   N  THR B  68           
SHEET    1   F 7 THR B 176  LYS B 177  0                                        
SHEET    2   F 7 VAL B 163  GLY B 172  1  O  ILE B 167   N  THR B 176           
SHEET    3   F 7 MET B 139  SER B 147  1  O  MET B 139   N  THR B 164           
SHEET    4   F 7 ILE B 113  GLY B 118  1  O  ILE B 113   N  THR B 140           
SHEET    5   F 7 ALA B 193  CYS B 197  1  O  ALA B 193   N  LEU B 114           
SHEET    6   F 7 LEU B 216  SER B 219  1  O  TYR B 217   N  THR B 196           
SHEET    7   F 7 VAL B 254  PHE B 255 -1  O  PHE B 255   N  ILE B 218           
SHEET    1   G 2 VAL B 235  HIS B 237  0                                        
SHEET    2   G 2 ALA B 245  LYS B 247 -1  N  LEU B 246   O  GLU B 236           
LINK         SG  CYS B 226                FE1  FES B 504     1555   1555  2.26  
LINK         SG  CYS B 231                FE1  FES B 504     1555   1555  2.27  
LINK         SG  CYS B 234                FE2  FES B 504     1555   1555  2.21  
LINK         SG  CYS B 249                FE2  FES B 504     1555   1555  2.25  
CISPEP   1 THR A   60    PRO A   61          0        -0.39                     
CISPEP   2 MET A  195    ILE A  196          0         0.72                     
CISPEP   3 GLY B   96    PRO B   97          0        -0.13                     
CISPEP   4 GLY B  252    PRO B  253          0         0.38                     
SITE     1 AC1 22 ALA A  23  SER A  24  GLY A  25  LYS A  48                    
SITE     2 AC1 22 ALA A  49  ASN A  72  ASN A 104  ASN A 132                    
SITE     3 AC1 22 LYS A 170  ILE A 196  ASN A 197  THR A 198                    
SITE     4 AC1 22 SER A 221  GLY A 222  MET A 247  GLY A 248                    
SITE     5 AC1 22 GLY A 249  GLY A 270  THR A 271  ORO A 502                    
SITE     6 AC1 22 HOH A1003  HOH A1020                                          
SITE     1 AC2 12 LYS A  48  ASN A  72  ILE A  74  GLY A  75                    
SITE     2 AC2 12 LEU A  76  ASN A 132  CYS A 135  PRO A 136                    
SITE     3 AC2 12 ASN A 137  ASN A 197  THR A 198  FMN A 501                    
SITE     1 AC3 20 GLU A  65  LEU B  51  ARG B  53  PRO B  54                    
SITE     2 AC3 20 ILE B  55  SER B  56  LEU B  70  TYR B  71                    
SITE     3 AC3 20 ARG B  72  THR B  78  GLY B  79  THR B  80                    
SITE     4 AC3 20 ILE B 120  GLU B 221  SER B 222  ARG B 223                    
SITE     5 AC3 20 MET B 224  HOH B1006  HOH B1046  HOH B1050                    
SITE     1 AC4 10 MET B 224  ALA B 225  CYS B 226  GLY B 227                    
SITE     2 AC4 10 GLY B 229  ALA B 230  CYS B 231  TYR B 232                    
SITE     3 AC4 10 CYS B 234  CYS B 249                                          
CRYST1  202.420  202.420   80.880  90.00  90.00 120.00 H 3 2        18          
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      0.004940  0.002852  0.000000        0.00000                         
SCALE2      0.000000  0.005704  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012364        0.00000