HEADER    OXIDOREDUCTASE                          14-FEB-21   7NIY              
TITLE     E. COLI NFSA WITH FMN                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: OXYGEN-INSENSITIVE NADPH NITROREDUCTASE;                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: MODULATOR OF DRUG ACTIVITY A;                               
COMPND   5 EC: 1.-.-.-;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI (STRAIN K12);                  
SOURCE   3 ORGANISM_TAXID: 83333;                                               
SOURCE   4 STRAIN: K12;                                                         
SOURCE   5 VARIANT: DH5ALPHA;                                                   
SOURCE   6 GENE: NFSA, MDA18, MDAA, YBJB, B0851, JW0835;                        
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PPS1341A1                                 
KEYWDS    COMPLEX WITH INHIBITOR FMN, FLAVOPROTEIN, NITROREDUCTASE,             
KEYWDS   2 OXIDOREDUCTASE                                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.D.DAY,D.JARROM,E.I.HYDE,S.A.WHITE                                   
REVDAT   3   06-NOV-24 7NIY    1       REMARK                                   
REVDAT   2   31-JAN-24 7NIY    1       REMARK                                   
REVDAT   1   21-JUL-21 7NIY    0                                                
JRNL        AUTH   M.A.DAY,D.JARROM,A.J.CHRISTOFFERSON,A.E.GRAZIANO,            
JRNL        AUTH 2 J.L.R.ANDERSON,P.F.SEARLE,E.I.HYDE,S.A.WHITE                 
JRNL        TITL   THE STRUCTURES OF E. COLI NFSA BOUND TO THE ANTIBIOTIC       
JRNL        TITL 2 NITROFURANTOIN; TO 1,4-BENZOQUINONE AND TO FMN.              
JRNL        REF    BIOCHEM.J.                    V. 478  2601 2021              
JRNL        REFN                   ESSN 1470-8728                               
JRNL        PMID   34142705                                                     
JRNL        DOI    10.1042/BCJ20210160                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.03 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.8.0258                                      
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) : 1.03                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.36                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 99892                          
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) : 0.106                           
REMARK   3   R VALUE            (WORKING SET) : 0.105                           
REMARK   3   FREE R VALUE                     : 0.118                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 5332                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.03                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.06                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 7069                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 92.30                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2320                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 360                          
REMARK   3   BIN FREE R VALUE                    : 0.2530                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1887                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 97                                      
REMARK   3   SOLVENT ATOMS            : 295                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 10.38                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.00000                                              
REMARK   3    B22 (A**2) : 0.44000                                              
REMARK   3    B33 (A**2) : -0.10000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : -0.08000                                             
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.021         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.020         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.012         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.527         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.983                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.982                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  2403 ; 0.015 ; 0.018       
REMARK   3   BOND LENGTHS OTHERS               (A):  2201 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  3292 ; 1.752 ; 1.891       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  5119 ; 1.246 ; 2.898       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   304 ; 6.110 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   115 ;35.929 ;23.739       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   404 ;12.300 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    22 ;19.821 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   350 ; 0.096 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2780 ; 0.012 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   506 ; 0.003 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
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):  4603 ; 2.122 ; 3.000       
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  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.00                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS U VALUES : REFINED INDIVIDUALLY                           
REMARK   4                                                                      
REMARK   4 7NIY COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 15-FEB-21.                  
REMARK 100 THE DEPOSITION ID IS D_1292113674.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-OCT-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.934                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 210                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 99892                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.030                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 32.360                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.7                               
REMARK 200  DATA REDUNDANCY                : 8.000                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.04000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 27.8900                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.03                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.06                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 92.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.58000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 1FV5                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.52                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 30 % PEG 3,350; 100 MM IMIDAZOLE, 20     
REMARK 280  MM HYDROQUINONE, 15 % ETHYLENE GLYCOL, PH 7.0, VAPOR DIFFUSION,     
REMARK 280  SITTING DROP, TEMPERATURE 291K                                      
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       45.95550            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       26.00150            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       45.95550            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       26.00150            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 15200 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 17910 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -78.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
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 A 613  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 688  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    CYS A   9   CB    CYS A   9   SG     -0.106                       
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    ARG A  57   NE  -  CZ  -  NH1 ANGL. DEV. =   3.0 DEGREES          
REMARK 500    ARG A  85   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.8 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    CYS A  45       41.41   -109.85                                   
REMARK 500    ASN A 179      -40.02     73.41                                   
REMARK 500    ASN A 179      -40.02     67.84                                   
REMARK 500    GLU A 223       79.20   -115.28                                   
REMARK 500    GLU A 223       76.32   -115.28                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A  57         0.08    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 690        DISTANCE =  5.88 ANGSTROMS                       
REMARK 525    HOH A 691        DISTANCE =  5.90 ANGSTROMS                       
REMARK 525    HOH A 692        DISTANCE =  5.98 ANGSTROMS                       
REMARK 525    HOH A 693        DISTANCE =  6.33 ANGSTROMS                       
REMARK 525    HOH A 694        DISTANCE =  6.90 ANGSTROMS                       
REMARK 525    HOH A 695        DISTANCE =  8.81 ANGSTROMS                       
DBREF  7NIY A    1   240  UNP    P17117   NFSA_ECOLI       1    240             
SEQRES   1 A  240  MET THR PRO THR ILE GLU LEU ILE CYS GLY HIS ARG SER          
SEQRES   2 A  240  ILE ARG HIS PHE THR ASP GLU PRO ILE SER GLU ALA GLN          
SEQRES   3 A  240  ARG GLU ALA ILE ILE ASN SER ALA ARG ALA THR SER SER          
SEQRES   4 A  240  SER SER PHE LEU GLN CYS SER SER ILE ILE ARG ILE THR          
SEQRES   5 A  240  ASP LYS ALA LEU ARG GLU GLU LEU VAL THR LEU THR GLY          
SEQRES   6 A  240  GLY GLN LYS HIS VAL ALA GLN ALA ALA GLU PHE TRP VAL          
SEQRES   7 A  240  PHE CYS ALA ASP PHE ASN ARG HIS LEU GLN ILE CYS PRO          
SEQRES   8 A  240  ASP ALA GLN LEU GLY LEU ALA GLU GLN LEU LEU LEU GLY          
SEQRES   9 A  240  VAL VAL ASP THR ALA MET MET ALA GLN ASN ALA LEU ILE          
SEQRES  10 A  240  ALA ALA GLU SER LEU GLY LEU GLY GLY VAL TYR ILE GLY          
SEQRES  11 A  240  GLY LEU ARG ASN ASN ILE GLU ALA VAL THR LYS LEU LEU          
SEQRES  12 A  240  LYS LEU PRO GLN HIS VAL LEU PRO LEU PHE GLY LEU CYS          
SEQRES  13 A  240  LEU GLY TRP PRO ALA ASP ASN PRO ASP LEU LYS PRO ARG          
SEQRES  14 A  240  LEU PRO ALA SER ILE LEU VAL HIS GLU ASN SER TYR GLN          
SEQRES  15 A  240  PRO LEU ASP LYS GLY ALA LEU ALA GLN TYR ASP GLU GLN          
SEQRES  16 A  240  LEU ALA GLU TYR TYR LEU THR ARG GLY SER ASN ASN ARG          
SEQRES  17 A  240  ARG ASP THR TRP SER ASP HIS ILE ARG ARG THR ILE ILE          
SEQRES  18 A  240  LYS GLU SER ARG PRO PHE ILE LEU ASP TYR LEU HIS LYS          
SEQRES  19 A  240  GLN GLY TRP ALA THR ARG                                      
HET    HQE  A 301       8                                                       
HET    HQE  A 302       8                                                       
HET    FMN  A 303      31                                                       
HET    EDO  A 304       4                                                       
HET    FMN  A 305      31                                                       
HET     CL  A 306       1                                                       
HET    IMD  A 307       5                                                       
HET    IMD  A 308       5                                                       
HET    EDO  A 309       4                                                       
HETNAM     HQE BENZENE-1,4-DIOL                                                 
HETNAM     FMN FLAVIN MONONUCLEOTIDE                                            
HETNAM     EDO 1,2-ETHANEDIOL                                                   
HETNAM      CL CHLORIDE ION                                                     
HETNAM     IMD IMIDAZOLE                                                        
HETSYN     FMN RIBOFLAVIN MONOPHOSPHATE                                         
HETSYN     EDO ETHYLENE GLYCOL                                                  
FORMUL   2  HQE    2(C6 H6 O2)                                                  
FORMUL   4  FMN    2(C17 H21 N4 O9 P)                                           
FORMUL   5  EDO    2(C2 H6 O2)                                                  
FORMUL   7   CL    CL 1-                                                        
FORMUL   8  IMD    2(C3 H5 N2 1+)                                               
FORMUL  11  HOH   *295(H2 O)                                                    
HELIX    1 AA1 THR A    2  GLY A   10  1                                   9    
HELIX    2 AA2 SER A   23  ALA A   36  1                                  14    
HELIX    3 AA3 SER A   39  LEU A   43  5                                   5    
HELIX    4 AA4 ASP A   53  THR A   64  1                                  12    
HELIX    5 AA5 LYS A   68  ALA A   73  1                                   6    
HELIX    6 AA6 PHE A   83  CYS A   90  1                                   8    
HELIX    7 AA7 LEU A   97  LEU A  122  1                                  26    
HELIX    8 AA8 GLY A  130  ASN A  134  5                                   5    
HELIX    9 AA9 ASN A  135  LEU A  143  1                                   9    
HELIX   10 AB1 PRO A  171  VAL A  176  1                                   6    
HELIX   11 AB2 ASP A  185  ARG A  203  1                                  19    
HELIX   12 AB3 THR A  211  ILE A  220  1                                  10    
HELIX   13 AB4 PHE A  227  GLN A  235  1                                   9    
SHEET    1 AA1 4 SER A  46  ARG A  50  0                                        
SHEET    2 AA1 4 GLU A  75  ASP A  82 -1  O  CYS A  80   N  SER A  47           
SHEET    3 AA1 4 VAL A 149  GLY A 158 -1  O  LEU A 152   N  PHE A  79           
SHEET    4 AA1 4 GLY A 125  ILE A 129 -1  N  GLY A 125   O  GLY A 158           
LINK         SG  CYS A   9                 C4  HQE A 301     1555   1555  1.71  
LINK         SG  CYS A  90                 C4  HQE A 302     1555   1555  1.73  
CRYST1   91.911   52.003   64.695  90.00 133.78  90.00 C 1 2 1       4          
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      0.010880  0.000000  0.010428        0.00000                         
SCALE2      0.000000  0.019230  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021410        0.00000