HEADER    PENTOSYLTRANSFERASE                     05-NOV-91   1ULB              
TITLE     APPLICATION OF CRYSTALLOGRAPHIC AND MODELING METHODS IN THE DESIGN OF 
TITLE    2 PURINE NUCLEOSIDE PHOSPHORYLASE INHIBITORS                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PURINE NUCLEOSIDE PHOSPHORYLASE;                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 2.4.2.1;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606                                                 
KEYWDS    PENTOSYLTRANSFERASE                                                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.E.EALICK,S.A.RULE,D.C.CARTER,T.J.GREENHOUGH,Y.S.BABU,W.J.COOK,      
AUTHOR   2 J.HABASH,J.R.HELLIWELL,J.D.STOECKLER,R.E.PARKSJUNIOR,S.-F.CHEN,      
AUTHOR   3 C.E.BUGG                                                             
REVDAT   5   14-FEB-24 1ULB    1       REMARK                                   
REVDAT   4   13-JUL-11 1ULB    1       VERSN                                    
REVDAT   3   24-FEB-09 1ULB    1       VERSN                                    
REVDAT   2   01-APR-03 1ULB    1       JRNL                                     
REVDAT   1   15-JAN-93 1ULB    0                                                
JRNL        AUTH   S.E.EALICK,Y.S.BABU,C.E.BUGG,M.D.ERION,W.C.GUIDA,            
JRNL        AUTH 2 J.A.MONTGOMERY,J.A.SECRIST 3RD.                              
JRNL        TITL   APPLICATION OF CRYSTALLOGRAPHIC AND MODELING METHODS IN THE  
JRNL        TITL 2 DESIGN OF PURINE NUCLEOSIDE PHOSPHORYLASE INHIBITORS.        
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V.  88 11540 1991              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   1763067                                                      
JRNL        DOI    10.1073/PNAS.88.24.11540                                     
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   S.E.EALICK,S.A.RULE,D.C.CARTER,T.J.GREENHOUGH,Y.S.BABU,      
REMARK   1  AUTH 2 W.J.COOK,J.HABASH,J.R.HELLIWELL,J.D.STOECKLER,               
REMARK   1  AUTH 3 R.E.PARKSJUNIOR,S.-F.CHEN,C.E.BUGG                           
REMARK   1  TITL   THREE-DIMENSIONAL STRUCTURE OF HUMAN ERYTHROCYTIC PURINE     
REMARK   1  TITL 2 NUCLEOSIDE PHOSPHORYLASE AT 3.2 ANGSTROMS RESOLUTION         
REMARK   1  REF    J.BIOL.CHEM.                  V. 265  1812 1990              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   W.J.COOK,S.E.EALICK,C.E.BUGG,J.D.STOECKLER,R.E.PARKSJUNIOR   
REMARK   1  TITL   CRYSTALLIZATION AND PRELIMINARY X-RAY INVESTIGATION OF HUMAN 
REMARK   1  TITL 2 ERYTHROCYTE PURINE NUCLEOSIDE PHOSPHORYLASE                  
REMARK   1  REF    J.BIOL.CHEM.                  V. 256  4079 1981              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.75 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.75                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : NULL                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
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) : 0.204                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
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) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2258                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 21                                      
REMARK   3   SOLVENT ATOMS            : 0                                       
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) : 0.019 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; 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 1ULB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000176949.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
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) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
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: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 75.61                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 5.04                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
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       71.45000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       41.25168            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       55.06667            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000       71.45000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       41.25168            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       55.06667            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000       71.45000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       41.25168            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       55.06667            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000       71.45000            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       41.25168            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       55.06667            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000       71.45000            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       41.25168            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       55.06667            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000       71.45000            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       41.25168            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       55.06667            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       82.50335            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000      110.13333            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000       82.50335            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000      110.13333            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000       82.50335            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000      110.13333            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000       82.50335            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000      110.13333            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000       82.50335            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000      110.13333            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000       82.50335            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000      110.13333            
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 9880 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 33250 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -125.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   3  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   O    SER A   239     N    LEU A   240              1.80            
REMARK 500   O    THR A    60     CD   PRO A    62              1.98            
REMARK 500   O    ASN A     3     N    TYR A     5              2.09            
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    SER A 239   C     LEU A 240   N      -0.234                       
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    TYR A   5   CB  -  CG  -  CD1 ANGL. DEV. =  -5.4 DEGREES          
REMARK 500    ARG A  24   NE  -  CZ  -  NH2 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A  58   NE  -  CZ  -  NH2 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    THR A  60   O   -  C   -  N   ANGL. DEV. =   9.9 DEGREES          
REMARK 500    VAL A  61   CB  -  CA  -  C   ANGL. DEV. = -11.7 DEGREES          
REMARK 500    ARG A  67   NE  -  CZ  -  NH2 ANGL. DEV. =   3.5 DEGREES          
REMARK 500    ARG A  76   NE  -  CZ  -  NH2 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    MET A  80   CG  -  SD  -  CE  ANGL. DEV. =   9.8 DEGREES          
REMARK 500    MET A  81   CG  -  SD  -  CE  ANGL. DEV. =   9.7 DEGREES          
REMARK 500    ARG A  84   NE  -  CZ  -  NH2 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    MET A  87   CG  -  SD  -  CE  ANGL. DEV. =   9.7 DEGREES          
REMARK 500    ARG A 101   NE  -  CZ  -  NH2 ANGL. DEV. =   3.9 DEGREES          
REMARK 500    MET A 130   CG  -  SD  -  CE  ANGL. DEV. =   9.7 DEGREES          
REMARK 500    ARG A 133   NE  -  CZ  -  NH2 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    ARG A 148   NE  -  CZ  -  NH2 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A 154   NE  -  CZ  -  NH2 ANGL. DEV. =   3.8 DEGREES          
REMARK 500    ARG A 158   NE  -  CZ  -  NH2 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG A 171   NE  -  CZ  -  NH2 ANGL. DEV. =   3.6 DEGREES          
REMARK 500    ARG A 173   NE  -  CZ  -  NH2 ANGL. DEV. =   3.2 DEGREES          
REMARK 500    ARG A 185   NE  -  CZ  -  NH2 ANGL. DEV. =   4.0 DEGREES          
REMARK 500    ARG A 229   NE  -  CZ  -  NH2 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ARG A 234   NE  -  CZ  -  NH2 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    SER A 239   CA  -  C   -  N   ANGL. DEV. =  20.8 DEGREES          
REMARK 500    SER A 239   O   -  C   -  N   ANGL. DEV. = -22.2 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    GLU A   2      175.09    -41.47                                   
REMARK 500    TYR A   5      137.52    -39.49                                   
REMARK 500    SER A  33       82.42     14.35                                   
REMARK 500    LEU A  35       11.57   -145.08                                   
REMARK 500    THR A  43      -66.04   -107.53                                   
REMARK 500    GLN A  46      110.59   -164.51                                   
REMARK 500    TYR A  50       -4.18    -58.66                                   
REMARK 500    VAL A  61      -36.98      4.06                                   
REMARK 500    PRO A  62     -146.85    -46.36                                   
REMARK 500    HIS A  64      -32.36     62.61                                   
REMARK 500    ALA A  65       81.67    -51.13                                   
REMARK 500    TYR A  88       -7.63    -56.47                                   
REMARK 500    VAL A 108      138.63    -32.80                                   
REMARK 500    ASN A 115      133.42    179.61                                   
REMARK 500    VAL A 126      139.47    -34.84                                   
REMARK 500    ASP A 128     -168.78    -50.09                                   
REMARK 500    GLU A 153        0.38    -54.17                                   
REMARK 500    PHE A 159       67.20   -118.91                                   
REMARK 500    ALA A 165      -72.80    -36.96                                   
REMARK 500    ASP A 167      150.58    -46.33                                   
REMARK 500    GLN A 180       -6.12    -50.25                                   
REMARK 500    THR A 221      -42.46     89.18                                   
REMARK 500    PHE A 236      148.71    151.18                                   
REMARK 500    THR A 242       17.46   -149.30                                   
REMARK 500    ASN A 243     -125.85    173.85                                   
REMARK 500    LYS A 244      148.38     84.17                                   
REMARK 500    ILE A 246       -6.11   -159.79                                   
REMARK 500    TYR A 249       -7.58    -59.02                                   
REMARK 500    GLU A 250      128.97    123.34                                   
REMARK 500    SER A 251     -136.93   -136.97                                   
REMARK 500    LEU A 252       38.18    162.10                                   
REMARK 500    GLU A 253     -162.36   -120.92                                   
REMARK 500    LYS A 254      -58.12   -161.80                                   
REMARK 500    ALA A 255      104.40    102.04                                   
REMARK 500    GLU A 259       29.87    -77.83                                   
REMARK 500    LYS A 265     -142.49   -147.32                                   
REMARK 500    PRO A 285      -81.97    -84.62                                   
REMARK 500    ASP A 286     -110.22     58.01                                   
REMARK 500    ALA A 288      101.01     84.61                                   
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 291                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 292                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GUN A 290                 
DBREF  1ULB A    1   289  UNP    P00491   PNPH_HUMAN       1    289             
SEQRES   1 A  289  MET GLU ASN GLY TYR THR TYR GLU ASP TYR LYS ASN THR          
SEQRES   2 A  289  ALA GLU TRP LEU LEU SER HIS THR LYS HIS ARG PRO GLN          
SEQRES   3 A  289  VAL ALA ILE ILE CYS GLY SER GLY LEU GLY GLY LEU THR          
SEQRES   4 A  289  ASP LYS LEU THR GLN ALA GLN ILE PHE ASP TYR SER GLU          
SEQRES   5 A  289  ILE PRO ASN PHE PRO ARG SER THR VAL PRO GLY HIS ALA          
SEQRES   6 A  289  GLY ARG LEU VAL PHE GLY PHE LEU ASN GLY ARG ALA CYS          
SEQRES   7 A  289  VAL MET MET GLN GLY ARG PHE HIS MET TYR GLU GLY TYR          
SEQRES   8 A  289  PRO LEU TRP LYS VAL THR PHE PRO VAL ARG VAL PHE HIS          
SEQRES   9 A  289  LEU LEU GLY VAL ASP THR LEU VAL VAL THR ASN ALA ALA          
SEQRES  10 A  289  GLY GLY LEU ASN PRO LYS PHE GLU VAL GLY ASP ILE MET          
SEQRES  11 A  289  LEU ILE ARG ASP HIS ILE ASN LEU PRO GLY PHE SER GLY          
SEQRES  12 A  289  GLN ASN PRO LEU ARG GLY PRO ASN ASP GLU ARG PHE GLY          
SEQRES  13 A  289  ASP ARG PHE PRO ALA MET SER ASP ALA TYR ASP ARG THR          
SEQRES  14 A  289  MET ARG GLN ARG ALA LEU SER THR TRP LYS GLN MET GLY          
SEQRES  15 A  289  GLU GLN ARG GLU LEU GLN GLU GLY THR TYR VAL MET VAL          
SEQRES  16 A  289  ALA GLY PRO SER PHE GLU THR VAL ALA GLU CYS ARG VAL          
SEQRES  17 A  289  LEU GLN LYS LEU GLY ALA ASP ALA VAL GLY MET SER THR          
SEQRES  18 A  289  VAL PRO GLU VAL ILE VAL ALA ARG HIS CYS GLY LEU ARG          
SEQRES  19 A  289  VAL PHE GLY PHE SER LEU ILE THR ASN LYS VAL ILE MET          
SEQRES  20 A  289  ASP TYR GLU SER LEU GLU LYS ALA ASN HIS GLU GLU VAL          
SEQRES  21 A  289  LEU ALA ALA GLY LYS GLN ALA ALA GLN LYS LEU GLU GLN          
SEQRES  22 A  289  PHE VAL SER ILE LEU MET ALA SER ILE PRO LEU PRO ASP          
SEQRES  23 A  289  LYS ALA SER                                                  
HET    SO4  A 291       5                                                       
HET    SO4  A 292       5                                                       
HET    GUN  A 290      11                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GUN GUANINE                                                          
FORMUL   2  SO4    2(O4 S 2-)                                                   
FORMUL   4  GUN    C5 H5 N5 O                                                   
HELIX    1  H1 TYR A    7  HIS A   20  1                                  14    
HELIX    2  H2 LEU A   35  THR A   43  1                                   9    
HELIX    3  H3 LEU A   93  LEU A  106  1                                  14    
HELIX    4  H4 ARG A  168  LYS A  179  1                                  12    
HELIX    5  H5 VAL A  203  LEU A  212  1                                  10    
HELIX    6  H6 VAL A  222  CYS A  231  1                                  10    
HELIX    7  H7 LYS A  265  ILE A  282  1                                  18    
SHEET    1   A 8 GLN A  44  ASP A  49  0                                        
SHEET    2   A 8 ARG A  67  PHE A  72 -1                                        
SHEET    3   A 8 ALA A  77  GLN A  82 -1                                        
SHEET    4   A 8 VAL A  27  GLY A  32  1                                        
SHEET    5   A 8 THR A 110  ASN A 115  1                                        
SHEET    6   A 8 ARG A 234  ILE A 241  1                                        
SHEET    7   A 8 ASP A 128  ARG A 133 -1                                        
SHEET    8   A 8 LEU A 187  THR A 191  1                                        
SHEET    1   B 5 HIS A 135  LEU A 138  0                                        
SHEET    2   B 5 TYR A 192  ALA A 196  1                                        
SHEET    3   B 5 ASP A 215  MET A 219  1                                        
SHEET    4   B 5 ALA A 116  LEU A 120 -1                                        
SHEET    5   B 5 THR A 242  LYS A 244  1                                        
SITE     1 AC1  7 GLY A  32  SER A  33  ARG A  84  HIS A  86                    
SITE     2 AC1  7 ASN A 115  ALA A 116  SER A 220                               
SITE     1 AC2  3 GLY A  34  LEU A  35  GLY A  36                               
SITE     1 AC3  8 ALA A 116  PHE A 200  GLU A 201  VAL A 217                    
SITE     2 AC3  8 GLY A 218  MET A 219  ASN A 243  LYS A 244                    
CRYST1  142.900  142.900  165.200  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      0.006998  0.004040  0.000000        0.00000                         
SCALE2      0.000000  0.008080  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006053        0.00000