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Database: PDB
Entry: 1S3U
LinkDB: 1S3U
Original site: 1S3U 
HEADER    OXIDOREDUCTASE                          14-JAN-04   1S3U              
TITLE     STRUCTURE DETERMINATION OF TETRAHYDROQUINAZOLINE ANTIFOLATES IN       
TITLE    2 COMPLEX WITH HUMAN AND PNEUMOCYSTIS CARINII DIHYDROFOLATE REDUCTASE: 
TITLE    3 CORRELATIONS OF ENZYME SELECTIVITY AND STEREOCHEMISTRY               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DIHYDROFOLATE REDUCTASE;                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 1.5.1.3;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: DHFR;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    DIHYDROFOLATE REDUCTASE, INHIBITOR COMPLEX, OXIDOREDUCTASE            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    V.CODY,J.R.LUFT,W.PANGBORN,A.GANGJEE,S.F.QUEENER                      
REVDAT   3   11-OCT-17 1S3U    1       REMARK                                   
REVDAT   2   24-FEB-09 1S3U    1       VERSN                                    
REVDAT   1   30-MAR-04 1S3U    0                                                
JRNL        AUTH   V.CODY,J.R.LUFT,W.PANGBORN,A.GANGJEE,S.F.QUEENER             
JRNL        TITL   STRUCTURE DETERMINATION OF TETRAHYDROQUINAZOLINE ANTIFOLATES 
JRNL        TITL 2 IN COMPLEX WITH HUMAN AND PNEUMOCYSTIS CARINII DIHYDROFOLATE 
JRNL        TITL 3 REDUCTASE: CORRELATIONS BETWEEN ENZYME SELECTIVITY AND       
JRNL        TITL 4 STEREOCHEMISTRY.                                             
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  60   646 2004              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   15039552                                                     
JRNL        DOI    10.1107/S0907444904002094                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROFFT                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON,FINZEL                           
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 5749                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.165                           
REMARK   3   R VALUE            (WORKING SET) : 0.165                           
REMARK   3   FREE R VALUE                     : 0.182                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 7225                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1502                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 37                                      
REMARK   3   SOLVENT ATOMS            : 52                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.016 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : 0.050 ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; 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  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1S3U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-JAN-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000021332.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-FEB-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 298                                
REMARK 200  PH                             : 6.8                                
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 RU300                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418,1.5621,1.7321               
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IIC                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : R-AXIS                             
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 7200                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.04700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
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) : 2.50                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
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: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: PROTEIN                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.65                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, 60-65%, 0.1 M          
REMARK 280  PHOSPHASTE, PH 6.8, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE      
REMARK 280  298K                                                                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       5555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       6555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290       7555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290       8555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290       9555   -X+Y+1/3,-X+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  1.000000  0.000000  0.000000       42.58650            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       24.58733            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       25.95200            
REMARK 290   SMTRY1   5 -0.500000 -0.866025  0.000000       42.58650            
REMARK 290   SMTRY2   5  0.866025 -0.500000  0.000000       24.58733            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       25.95200            
REMARK 290   SMTRY1   6 -0.500000  0.866025  0.000000       42.58650            
REMARK 290   SMTRY2   6 -0.866025 -0.500000  0.000000       24.58733            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       25.95200            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       49.17465            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       51.90400            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       49.17465            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       51.90400            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       49.17465            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       51.90400            
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: 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 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   NH2  ARG A    36     O    GLY A   164              2.06            
REMARK 500   N    GLY A     2     O    ASP A   110              2.07            
REMARK 500   OG   SER A    42     OD1  ASP A   110              2.17            
REMARK 500   O    LEU A    79     NH1  ARG A    91              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    THR A 100   C     GLU A 101   N       0.225                       
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    CYS A   6   N   -  CA  -  CB  ANGL. DEV. =  10.2 DEGREES          
REMARK 500    LYS A  18   O   -  C   -  N   ANGL. DEV. =  10.7 DEGREES          
REMARK 500    LEU A  22   CA  -  CB  -  CG  ANGL. DEV. =  14.0 DEGREES          
REMARK 500    ARG A  28   CD  -  NE  -  CZ  ANGL. DEV. =  15.9 DEGREES          
REMARK 500    ARG A  32   NE  -  CZ  -  NH1 ANGL. DEV. =   4.6 DEGREES          
REMARK 500    ARG A  36   CA  -  CB  -  CG  ANGL. DEV. =  14.5 DEGREES          
REMARK 500    ARG A  36   CD  -  NE  -  CZ  ANGL. DEV. = -10.3 DEGREES          
REMARK 500    ARG A  65   NE  -  CZ  -  NH1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ARG A  70   CB  -  CA  -  C   ANGL. DEV. = -13.9 DEGREES          
REMARK 500    ARG A  70   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.5 DEGREES          
REMARK 500    GLU A  78   CA  -  CB  -  CG  ANGL. DEV. =  22.7 DEGREES          
REMARK 500    HIS A  87   CE1 -  NE2 -  CD2 ANGL. DEV. =   4.6 DEGREES          
REMARK 500    ARG A  91   CD  -  NE  -  CZ  ANGL. DEV. =   8.8 DEGREES          
REMARK 500    LYS A 108   O   -  C   -  N   ANGL. DEV. = -13.1 DEGREES          
REMARK 500    ASP A 110   CB  -  CG  -  OD1 ANGL. DEV. =   9.0 DEGREES          
REMARK 500    ARG A 137   NE  -  CZ  -  NH1 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    ARG A 137   NE  -  CZ  -  NH2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ASP A 145   CB  -  CA  -  C   ANGL. DEV. =  12.3 DEGREES          
REMARK 500    GLU A 150   OE1 -  CD  -  OE2 ANGL. DEV. =   9.2 DEGREES          
REMARK 500    GLU A 150   CG  -  CD  -  OE2 ANGL. DEV. = -12.9 DEGREES          
REMARK 500    TYR A 156   CB  -  CG  -  CD1 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    ASP A 168   CB  -  CG  -  OD2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    GLU A 171   OE1 -  CD  -  OE2 ANGL. DEV. =  11.2 DEGREES          
REMARK 500    GLU A 172   CG  -  CD  -  OE2 ANGL. DEV. = -12.2 DEGREES          
REMARK 500    GLU A 180   OE1 -  CD  -  OE2 ANGL. DEV. = -11.8 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    MET A  14       35.64     78.71                                   
REMARK 500    ASP A 110      -86.58    -87.91                                   
REMARK 500    ASN A 185       97.32   -174.41                                   
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  70         0.10    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    LYS A 108         10.28                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 188                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 189                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TQD A 187                 
DBREF  1S3U A    1   186  UNP    P00374   DYR_HUMAN        1    186             
SEQRES   1 A  186  VAL GLY SER LEU ASN CYS ILE VAL ALA VAL SER GLN ASN          
SEQRES   2 A  186  MET GLY ILE GLY LYS ASN GLY ASP LEU PRO TRP PRO PRO          
SEQRES   3 A  186  LEU ARG ASN GLU PHE ARG TYR PHE GLN ARG MET THR THR          
SEQRES   4 A  186  THR SER SER VAL GLU GLY LYS GLN ASN LEU VAL ILE MET          
SEQRES   5 A  186  GLY LYS LYS THR TRP PHE SER ILE PRO GLU LYS ASN ARG          
SEQRES   6 A  186  PRO LEU LYS GLY ARG ILE ASN LEU VAL LEU SER ARG GLU          
SEQRES   7 A  186  LEU LYS GLU PRO PRO GLN GLY ALA HIS PHE LEU SER ARG          
SEQRES   8 A  186  SER LEU ASP ASP ALA LEU LYS LEU THR GLU GLN PRO GLU          
SEQRES   9 A  186  LEU ALA ASN LYS VAL ASP MET VAL TRP ILE VAL GLY GLY          
SEQRES  10 A  186  SER SER VAL TYR LYS GLU ALA MET ASN HIS PRO GLY HIS          
SEQRES  11 A  186  LEU LYS LEU PHE VAL THR ARG ILE MET GLN ASP PHE GLU          
SEQRES  12 A  186  SER ASP THR PHE PHE PRO GLU ILE ASP LEU GLU LYS TYR          
SEQRES  13 A  186  LYS LEU LEU PRO GLU TYR PRO GLY VAL LEU SER ASP VAL          
SEQRES  14 A  186  GLN GLU GLU LYS GLY ILE LYS TYR LYS PHE GLU VAL TYR          
SEQRES  15 A  186  GLU LYS ASN ASP                                              
HET    SO4  A 188       5                                                       
HET    SO4  A 189       5                                                       
HET    TQD  A 187      27                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     TQD (2R,6S)-6-{[METHYL(3,4,5-TRIMETHOXYPHENYL)                       
HETNAM   2 TQD  AMINO]METHYL}-1,2,5,6,7,8-HEXAHYDROQUINAZOLINE-2,4-             
HETNAM   3 TQD  DIAMINE                                                         
FORMUL   2  SO4    2(O4 S 2-)                                                   
FORMUL   4  TQD    C19 H29 N5 O3                                                
FORMUL   5  HOH   *52(H2 O)                                                     
HELIX    1   1 LEU A   27  THR A   40  1                                  14    
HELIX    2   2 LYS A   54  ILE A   60  1                                   7    
HELIX    3   3 PRO A   61  ARG A   65  5                                   5    
HELIX    4   4 SER A   92  LEU A   99  1                                   8    
HELIX    5   5 GLY A  117  HIS A  127  1                                  11    
SHEET    1   A 8 PHE A  88  SER A  90  0                                        
SHEET    2   A 8 ILE A  71  LEU A  75  1  N  VAL A  74   O  PHE A  88           
SHEET    3   A 8 GLN A  47  GLY A  53  1  N  MET A  52   O  LEU A  75           
SHEET    4   A 8 VAL A 109  GLY A 116  1  O  TRP A 113   N  ILE A  51           
SHEET    5   A 8 LEU A   4  VAL A  10  1  N  ASN A   5   O  ILE A 114           
SHEET    6   A 8 HIS A 130  ILE A 138  1  O  THR A 136   N  VAL A   8           
SHEET    7   A 8 ILE A 175  ASN A 185 -1  O  TYR A 182   N  LEU A 133           
SHEET    8   A 8 LYS A 157  LEU A 158 -1  N  LYS A 157   O  GLU A 183           
SHEET    1   B 8 PHE A  88  SER A  90  0                                        
SHEET    2   B 8 ILE A  71  LEU A  75  1  N  VAL A  74   O  PHE A  88           
SHEET    3   B 8 GLN A  47  GLY A  53  1  N  MET A  52   O  LEU A  75           
SHEET    4   B 8 VAL A 109  GLY A 116  1  O  TRP A 113   N  ILE A  51           
SHEET    5   B 8 LEU A   4  VAL A  10  1  N  ASN A   5   O  ILE A 114           
SHEET    6   B 8 HIS A 130  ILE A 138  1  O  THR A 136   N  VAL A   8           
SHEET    7   B 8 ILE A 175  ASN A 185 -1  O  TYR A 182   N  LEU A 133           
SHEET    8   B 8 GLN A 170  GLU A 172 -1  N  GLN A 170   O  TYR A 177           
SHEET    1   C 2 GLY A  15  GLY A  17  0                                        
SHEET    2   C 2 THR A 146  PHE A 147 -1  N  THR A 146   O  GLY A  17           
CISPEP   1 ARG A   65    PRO A   66          0        -0.89                     
CISPEP   2 GLY A  116    GLY A  117          0         0.53                     
SITE     1 AC1  7 GLY A  53  LYS A  54  LYS A  55  THR A  56                    
SITE     2 AC1  7 GLY A 117  SER A 119  VAL A 120                               
SITE     1 AC2  4 LYS A  54  SER A  76  ARG A  77  GLU A  78                    
SITE     1 AC3 12 ILE A   7  VAL A   8  ALA A   9  GLU A  30                    
SITE     2 AC3 12 PHE A  31  PHE A  34  PRO A  61  ASN A  64                    
SITE     3 AC3 12 LEU A  67  VAL A 115  TYR A 121  THR A 136                    
CRYST1   85.173   85.173   77.856  90.00  90.00 120.00 H 3           9          
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      0.011741  0.006779  0.000000        0.00000                         
SCALE2      0.000000  0.013557  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012844        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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