HEADER    ISOMERASE/DNA                           29-JAN-98   1A35              
TITLE     HUMAN TOPOISOMERASE I/DNA COMPLEX                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-                                                   
COMPND   3 D(*AP*AP*AP*AP*AP*GP*AP*CP*TP*TP*AP*GP*AP*AP*AP*AP*AP*(BRU)P*(BRU)   
COMPND   4 P*TP*TP*T)-3');                                                      
COMPND   5 CHAIN: C;                                                            
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: DNA (5'-                                                   
COMPND   9 D(*AP*AP*AP*AP*AP*TP*+UP*+UP*+UP*+UP*CP*+UP*AP*AP*GP*TP*CP*TP*TP*TP*+
COMPND  10 UP*T)-3');                                                           
COMPND  11 CHAIN: D;                                                            
COMPND  12 ENGINEERED: YES;                                                     
COMPND  13 MOL_ID: 3;                                                           
COMPND  14 MOLECULE: PROTEIN (DNA TOPOISOMERASE I);                             
COMPND  15 CHAIN: A;                                                            
COMPND  16 FRAGMENT: CORE DOMAIN AND C-TERMINAL DOMAIN;                         
COMPND  17 EC: 5.99.1.2;                                                        
COMPND  18 ENGINEERED: YES;                                                     
COMPND  19 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 SYNTHETIC: YES;                                                      
SOURCE   5 MOL_ID: 3;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   7 ORGANISM_COMMON: HUMAN;                                              
SOURCE   8 ORGANISM_TAXID: 9606;                                                
SOURCE   9 CELLULAR_LOCATION: NUCLEUS;                                          
SOURCE  10 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA;                            
SOURCE  11 EXPRESSION_SYSTEM_COMMON: FALL ARMYWORM;                             
SOURCE  12 EXPRESSION_SYSTEM_TAXID: 7108;                                       
SOURCE  13 EXPRESSION_SYSTEM_VECTOR: BACULOVIRUS                                
KEYWDS    TOPOISOMERASE I/DNA), DNA, TOPOISOMERASE I, ISOMERASE-DNA COMPLEX     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.R.REDINBO,L.STEWART,P.KUHN,J.J.CHAMPOUX,W.G.HOL                     
REVDAT   5   03-APR-24 1A35    1       REMARK                                   
REVDAT   4   07-FEB-24 1A35    1       REMARK                                   
REVDAT   3   03-NOV-21 1A35    1       SEQADV LINK                              
REVDAT   2   24-FEB-09 1A35    1       VERSN                                    
REVDAT   1   28-AUG-98 1A35    0                                                
JRNL        AUTH   M.R.REDINBO,L.STEWART,P.KUHN,J.J.CHAMPOUX,W.G.HOL            
JRNL        TITL   CRYSTAL STRUCTURES OF HUMAN TOPOISOMERASE I IN COVALENT AND  
JRNL        TITL 2 NONCOVALENT COMPLEXES WITH DNA.                              
JRNL        REF    SCIENCE                       V. 279  1504 1998              
JRNL        REFN                   ISSN 0036-8075                               
JRNL        PMID   9488644                                                      
JRNL        DOI    10.1126/SCIENCE.279.5356.1504                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.1                                           
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 10000000.000                   
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0010                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 87.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 20807                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.308                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1467                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 10                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.50                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.59                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 55.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1261                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3150                       
REMARK   3   BIN FREE R VALUE                    : 0.3210                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 6.00                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 81                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3778                                    
REMARK   3   NUCLEIC ACID ATOMS       : 896                                     
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 273                                     
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) : -2.35000                                             
REMARK   3    B22 (A**2) : 4.70600                                              
REMARK   3    B33 (A**2) : -2.35000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.75300                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.011                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.470                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.30                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.460                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PARHCSDX.PRO                                   
REMARK   3  PARAMETER FILE  2  : PARAM_NDBX.DNA                                 
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : TOPHCSDX.PRO                                   
REMARK   3  TOPOLOGY FILE  2   : TOP_NDBX.DNA                                   
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1A35 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB.                                
REMARK 100 THE DEPOSITION ID IS D_1000170333.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : JUN-96                             
REMARK 200  TEMPERATURE           (KELVIN) : 100.00                             
REMARK 200  PH                             : 7.70                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : FUJI                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 18834                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 83.9                               
REMARK 200  DATA REDUNDANCY                : 4.200                              
REMARK 200  R MERGE                    (I) : 0.07700                            
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) : 2.50                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.60                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 87.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.26900                            
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: RIGID BODY REFINEMENT        
REMARK 200 SOFTWARE USED: X-PLOR                                                
REMARK 200 STARTING MODEL: RECONSTITUTED HUMAN TOPOISOMERASE I COVALENT         
REMARK 200  COMPLEX WITH 22 BASE PAIR DUPLEX DNA                                
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.91                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.70, VAPOR DIFFUSION, SITTING        
REMARK 280  DROP, TEMPERATURE 295.00K                                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       33.15000            
REMARK 290   SMTRY3   2  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: TRIMERIC                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D, 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 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 RESIDUES 215-635 OF CHAIN A COMPRISE THE CORE DOMAIN OF              
REMARK 400 THE MOLECULE.  RESIDUES 715-765 OF CHAIN A COMPRISE THE              
REMARK 400 C-TERMINAL DOMAIN.  1-22 OF CHAIN C COMPRISE THE SCISSILE            
REMARK 400 STRAND OF THE DNA, 101-122 OF CHAIN D THE INTACT DNA                 
REMARK 400 STRAND.                                                              
REMARK 400                                                                      
REMARK 400 NOTE THAT THE LINKER DOMAIN (636-714) IS NOT                         
REMARK 400 PRESENT IN THE CONSTRUCT OF THIS RECONSTITUTED ENZYME.               
REMARK 400 THE RECONSTITUTED ENZYME IS MADE UP OF RESIDUES 175-659 OF           
REMARK 400 THE CORE (EXPRESSED IN BACULOVIRUS) AND RESIDUES 713-765 OF          
REMARK 400 THE C-TERMINAL DOMAIN (EXPRESSED IN E. COLI).                        
REMARK 400                                                                      
REMARK 400 CHAIN A RESIDUES 175-214 AND 636-659 OF THE CORE                     
REMARK 400 AND 713-719 OF THE C-TERMINAL DOMAIN ARE DISORDERED AND NOT          
REMARK 400 PRESENT IN THE STRUCTURE.                                            
REMARK 400                                                                      
REMARK 400 TER                                                                  
REMARK 400 ALA 635 A IS THE TERMINAL RESIDUE OF THE CORE DOMAIN.                
REMARK 400 PHE 765 A IS THE TERMINAL RESIDUE OF THE C-TERMINAL DOMAIN.          
REMARK 400                                                                      
REMARK 400 THY 22 C IS THE 3' TERMINAL NUCLEOTIDE OF THE SCISSILE               
REMARK 400 STRAND OF THE DNA DUPLEX.                                            
REMARK 400                                                                      
REMARK 400 THY 122 D IS THE 3' TERMINAL NUCLEOTIDE OF THE INTACT                
REMARK 400 STRAND OF THE DNA DUPLEX.                                            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     LYS A   175                                                      
REMARK 465     PRO A   176                                                      
REMARK 465     LYS A   177                                                      
REMARK 465     ASN A   178                                                      
REMARK 465     LYS A   179                                                      
REMARK 465     ASP A   180                                                      
REMARK 465     LYS A   181                                                      
REMARK 465     ASP A   182                                                      
REMARK 465     LYS A   183                                                      
REMARK 465     LYS A   184                                                      
REMARK 465     VAL A   185                                                      
REMARK 465     PRO A   186                                                      
REMARK 465     GLU A   187                                                      
REMARK 465     PRO A   188                                                      
REMARK 465     ASP A   189                                                      
REMARK 465     ASN A   190                                                      
REMARK 465     LYS A   191                                                      
REMARK 465     LYS A   192                                                      
REMARK 465     LYS A   193                                                      
REMARK 465     LYS A   194                                                      
REMARK 465     PRO A   195                                                      
REMARK 465     LYS A   196                                                      
REMARK 465     LYS A   197                                                      
REMARK 465     GLU A   198                                                      
REMARK 465     GLU A   199                                                      
REMARK 465     GLU A   200                                                      
REMARK 465     GLN A   201                                                      
REMARK 465     LYS A   202                                                      
REMARK 465     TRP A   203                                                      
REMARK 465     LYS A   204                                                      
REMARK 465     TRP A   205                                                      
REMARK 465     TRP A   206                                                      
REMARK 465     GLU A   207                                                      
REMARK 465     GLU A   208                                                      
REMARK 465     GLU A   209                                                      
REMARK 465     ARG A   210                                                      
REMARK 465     TYR A   211                                                      
REMARK 465     PRO A   212                                                      
REMARK 465     GLU A   213                                                      
REMARK 465     GLY A   214                                                      
REMARK 465     PRO A   636                                                      
REMARK 465     PRO A   637                                                      
REMARK 465     LYS A   638                                                      
REMARK 465     THR A   639                                                      
REMARK 465     PHE A   640                                                      
REMARK 465     GLU A   641                                                      
REMARK 465     LYS A   642                                                      
REMARK 465     SER A   643                                                      
REMARK 465     MET A   644                                                      
REMARK 465     MET A   645                                                      
REMARK 465     ASN A   646                                                      
REMARK 465     LEU A   647                                                      
REMARK 465     GLN A   648                                                      
REMARK 465     THR A   649                                                      
REMARK 465     LYS A   650                                                      
REMARK 465     ILE A   651                                                      
REMARK 465     ASP A   652                                                      
REMARK 465     ALA A   653                                                      
REMARK 465     LYS A   654                                                      
REMARK 465     LYS A   655                                                      
REMARK 465     GLU A   656                                                      
REMARK 465     GLN A   657                                                      
REMARK 465     LEU A   658                                                      
REMARK 465     ALA A   659                                                      
REMARK 465     ASP A   660                                                      
REMARK 465     ALA A   661                                                      
REMARK 465     ARG A   662                                                      
REMARK 465     ARG A   663                                                      
REMARK 465     ASP A   664                                                      
REMARK 465     LEU A   665                                                      
REMARK 465     LYS A   666                                                      
REMARK 465     SER A   667                                                      
REMARK 465     ALA A   668                                                      
REMARK 465     LYS A   669                                                      
REMARK 465     ALA A   670                                                      
REMARK 465     ASP A   671                                                      
REMARK 465     ALA A   672                                                      
REMARK 465     LYS A   673                                                      
REMARK 465     VAL A   674                                                      
REMARK 465     MET A   675                                                      
REMARK 465     LYS A   676                                                      
REMARK 465     ASP A   677                                                      
REMARK 465     ALA A   678                                                      
REMARK 465     LYS A   679                                                      
REMARK 465     THR A   680                                                      
REMARK 465     LYS A   681                                                      
REMARK 465     LYS A   682                                                      
REMARK 465     VAL A   683                                                      
REMARK 465     VAL A   684                                                      
REMARK 465     GLU A   685                                                      
REMARK 465     SER A   686                                                      
REMARK 465     LYS A   687                                                      
REMARK 465     LYS A   688                                                      
REMARK 465     LYS A   689                                                      
REMARK 465     ALA A   690                                                      
REMARK 465     VAL A   691                                                      
REMARK 465     GLN A   692                                                      
REMARK 465     ARG A   693                                                      
REMARK 465     LEU A   694                                                      
REMARK 465     GLU A   695                                                      
REMARK 465     GLU A   696                                                      
REMARK 465     GLN A   697                                                      
REMARK 465     LEU A   698                                                      
REMARK 465     MET A   699                                                      
REMARK 465     LYS A   700                                                      
REMARK 465     LEU A   701                                                      
REMARK 465     GLU A   702                                                      
REMARK 465     VAL A   703                                                      
REMARK 465     GLN A   704                                                      
REMARK 465     ALA A   705                                                      
REMARK 465     THR A   706                                                      
REMARK 465     ASP A   707                                                      
REMARK 465     ARG A   708                                                      
REMARK 465     GLU A   709                                                      
REMARK 465     GLU A   710                                                      
REMARK 465     ASN A   711                                                      
REMARK 465     LYS A   712                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A 267    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 276    CG   CD   CE   NZ                                   
REMARK 470     GLU A 289    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 322    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 323    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 332    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 336    CG   CD   CE   NZ                                   
REMARK 470     GLU A 337    CG   CD   OE1  OE2                                  
REMARK 470     ASN A 345    CG   OD1  ND2                                       
REMARK 470     LYS A 347    CG   CD   CE   NZ                                   
REMARK 470     LYS A 388    CG   CD   CE   NZ                                   
REMARK 470     GLU A 463    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 466    CG   CD   CE   NZ                                   
REMARK 470     GLU A 469    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 484    CG   CD   CE   NZ                                   
REMARK 470     GLU A 495    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 497    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 517    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 519    CG   OD1  OD2                                       
REMARK 470     GLN A 521    CG   CD   OE1  NE2                                  
REMARK 470     GLU A 522    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 545    CG   CD   CE   NZ                                   
REMARK 470     ARG A 546    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU A 556    CG   CD   OE1  OE2                                  
REMARK 470     ARG A 567    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ASP A 579    CG   OD1  OD2                                       
REMARK 470     GLU A 582    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 609    CG   OD1  OD2                                       
REMARK 470     GLU A 610    CG   CD   OE1  OE2                                  
REMARK 470     ARG A 621    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A 624    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A 634    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLN A 713    CG   CD   OE1  NE2                                  
REMARK 470     GLU A 741    CG   CD   OE1  OE2                                  
REMARK 470     LYS A 742    CG   CD   CE   NZ                                   
REMARK 470     LYS A 746    CG   CD   CE   NZ                                   
REMARK 470     ASP A 760    CG   OD1  OD2                                       
REMARK 470     GLU A 761    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 762    CG   OD1  OD2                                       
REMARK 470     GLU A 764    CG   CD   OE1  OE2                                  
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     DC C   8   O4' -  C1' -  N1  ANGL. DEV. =   2.2 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    LYS A 284       -8.24    -55.57                                   
REMARK 500    ILE A 294       85.52    -69.90                                   
REMARK 500    ALA A 315        6.91    -69.04                                   
REMARK 500    GLN A 318       50.01   -107.71                                   
REMARK 500    ASP A 344     -127.98     52.97                                   
REMARK 500    ALA A 351      -82.80    -70.47                                   
REMARK 500    ARG A 362       72.01   -111.48                                   
REMARK 500    GLU A 495      100.14    -49.97                                   
REMARK 500    TYR A 523       59.23     72.88                                   
REMARK 500    ASN A 539      148.00   -173.86                                   
REMARK 500    LYS A 545      -55.74    -28.87                                   
REMARK 500    PHE A 565       58.06    -95.06                                   
REMARK 500    ASN A 631       45.25     73.30                                   
REMARK 500    ILE A 714      102.06    -56.62                                   
REMARK 500    ILE A 756        1.93    -65.65                                   
REMARK 500    GLU A 761        3.21    -53.39                                   
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     DC C   8         0.10    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1A35 A  175   765  UNP    P11387   TOP1_HUMAN     175    765             
DBREF  1A35 C    1    22  PDB    1A35     1A35             1     22             
DBREF  1A35 D  101   122  PDB    1A35     1A35           101    122             
SEQADV 1A35 PHE A  723  UNP  P11387    TYR   723 ENGINEERED MUTATION            
SEQRES   1 C   22   DA  DA  DA  DA  DA  DG  DA  DC  DT  DT  DA  DG  DA          
SEQRES   2 C   22   DA  DA  DA  DA BRU BRU  DT  DT  DT                          
SEQRES   1 D   22   DA  DA  DA  DA  DA  DT BRU BRU BRU BRU  DC BRU  DA          
SEQRES   2 D   22   DA  DG  DT  DC  DT  DT  DT BRU  DT                          
SEQRES   1 A  591  LYS PRO LYS ASN LYS ASP LYS ASP LYS LYS VAL PRO GLU          
SEQRES   2 A  591  PRO ASP ASN LYS LYS LYS LYS PRO LYS LYS GLU GLU GLU          
SEQRES   3 A  591  GLN LYS TRP LYS TRP TRP GLU GLU GLU ARG TYR PRO GLU          
SEQRES   4 A  591  GLY ILE LYS TRP LYS PHE LEU GLU HIS LYS GLY PRO VAL          
SEQRES   5 A  591  PHE ALA PRO PRO TYR GLU PRO LEU PRO GLU ASN VAL LYS          
SEQRES   6 A  591  PHE TYR TYR ASP GLY LYS VAL MET LYS LEU SER PRO LYS          
SEQRES   7 A  591  ALA GLU GLU VAL ALA THR PHE PHE ALA LYS MET LEU ASP          
SEQRES   8 A  591  HIS GLU TYR THR THR LYS GLU ILE PHE ARG LYS ASN PHE          
SEQRES   9 A  591  PHE LYS ASP TRP ARG LYS GLU MET THR ASN GLU GLU LYS          
SEQRES  10 A  591  ASN ILE ILE THR ASN LEU SER LYS CYS ASP PHE THR GLN          
SEQRES  11 A  591  MET SER GLN TYR PHE LYS ALA GLN THR GLU ALA ARG LYS          
SEQRES  12 A  591  GLN MET SER LYS GLU GLU LYS LEU LYS ILE LYS GLU GLU          
SEQRES  13 A  591  ASN GLU LYS LEU LEU LYS GLU TYR GLY PHE CYS ILE MET          
SEQRES  14 A  591  ASP ASN HIS LYS GLU ARG ILE ALA ASN PHE LYS ILE GLU          
SEQRES  15 A  591  PRO PRO GLY LEU PHE ARG GLY ARG GLY ASN HIS PRO LYS          
SEQRES  16 A  591  MET GLY MET LEU LYS ARG ARG ILE MET PRO GLU ASP ILE          
SEQRES  17 A  591  ILE ILE ASN CYS SER LYS ASP ALA LYS VAL PRO SER PRO          
SEQRES  18 A  591  PRO PRO GLY HIS LYS TRP LYS GLU VAL ARG HIS ASP ASN          
SEQRES  19 A  591  LYS VAL THR TRP LEU VAL SER TRP THR GLU ASN ILE GLN          
SEQRES  20 A  591  GLY SER ILE LYS TYR ILE MET LEU ASN PRO SER SER ARG          
SEQRES  21 A  591  ILE LYS GLY GLU LYS ASP TRP GLN LYS TYR GLU THR ALA          
SEQRES  22 A  591  ARG ARG LEU LYS LYS CYS VAL ASP LYS ILE ARG ASN GLN          
SEQRES  23 A  591  TYR ARG GLU ASP TRP LYS SER LYS GLU MET LYS VAL ARG          
SEQRES  24 A  591  GLN ARG ALA VAL ALA LEU TYR PHE ILE ASP LYS LEU ALA          
SEQRES  25 A  591  LEU ARG ALA GLY ASN GLU LYS GLU GLU GLY GLU THR ALA          
SEQRES  26 A  591  ASP THR VAL GLY CYS CYS SER LEU ARG VAL GLU HIS ILE          
SEQRES  27 A  591  ASN LEU HIS PRO GLU LEU ASP GLY GLN GLU TYR VAL VAL          
SEQRES  28 A  591  GLU PHE ASP PHE LEU GLY LYS ASP SER ILE ARG TYR TYR          
SEQRES  29 A  591  ASN LYS VAL PRO VAL GLU LYS ARG VAL PHE LYS ASN LEU          
SEQRES  30 A  591  GLN LEU PHE MET GLU ASN LYS GLN PRO GLU ASP ASP LEU          
SEQRES  31 A  591  PHE ASP ARG LEU ASN THR GLY ILE LEU ASN LYS HIS LEU          
SEQRES  32 A  591  GLN ASP LEU MET GLU GLY LEU THR ALA LYS VAL PHE ARG          
SEQRES  33 A  591  THR TYR ASN ALA SER ILE THR LEU GLN GLN GLN LEU LYS          
SEQRES  34 A  591  GLU LEU THR ALA PRO ASP GLU ASN ILE PRO ALA LYS ILE          
SEQRES  35 A  591  LEU SER TYR ASN ARG ALA ASN ARG ALA VAL ALA ILE LEU          
SEQRES  36 A  591  CYS ASN HIS GLN ARG ALA PRO PRO LYS THR PHE GLU LYS          
SEQRES  37 A  591  SER MET MET ASN LEU GLN THR LYS ILE ASP ALA LYS LYS          
SEQRES  38 A  591  GLU GLN LEU ALA ASP ALA ARG ARG ASP LEU LYS SER ALA          
SEQRES  39 A  591  LYS ALA ASP ALA LYS VAL MET LYS ASP ALA LYS THR LYS          
SEQRES  40 A  591  LYS VAL VAL GLU SER LYS LYS LYS ALA VAL GLN ARG LEU          
SEQRES  41 A  591  GLU GLU GLN LEU MET LYS LEU GLU VAL GLN ALA THR ASP          
SEQRES  42 A  591  ARG GLU GLU ASN LYS GLN ILE ALA LEU GLY THR SER LYS          
SEQRES  43 A  591  LEU ASN PHE LEU ASP PRO ARG ILE THR VAL ALA TRP CYS          
SEQRES  44 A  591  LYS LYS TRP GLY VAL PRO ILE GLU LYS ILE TYR ASN LYS          
SEQRES  45 A  591  THR GLN ARG GLU LYS PHE ALA TRP ALA ILE ASP MET ALA          
SEQRES  46 A  591  ASP GLU ASP TYR GLU PHE                                      
MODRES 1A35 BRU C   18   DU                                                     
MODRES 1A35 BRU C   19   DU                                                     
MODRES 1A35 BRU D  107   DU                                                     
MODRES 1A35 BRU D  108   DU                                                     
MODRES 1A35 BRU D  109   DU                                                     
MODRES 1A35 BRU D  110   DU                                                     
MODRES 1A35 BRU D  112   DU                                                     
MODRES 1A35 BRU D  121   DU                                                     
HET    BRU  C  18      20                                                       
HET    BRU  C  19      20                                                       
HET    BRU  D 107      20                                                       
HET    BRU  D 108      20                                                       
HET    BRU  D 109      20                                                       
HET    BRU  D 110      20                                                       
HET    BRU  D 112      20                                                       
HET    BRU  D 121      20                                                       
HETNAM     BRU 5-BROMO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE                         
FORMUL   1  BRU    8(C9 H12 BR N2 O8 P)                                         
FORMUL   4  HOH   *273(H2 O)                                                    
HELIX    1   1 PRO A  251  MET A  263  1                                  13    
HELIX    2   2 GLU A  267  THR A  269  5                                   3    
HELIX    3   3 GLU A  272  GLU A  285  1                                  14    
HELIX    4   4 GLU A  290  ILE A  293  1                                   4    
HELIX    5   5 THR A  303  LYS A  317  1                                  15    
HELIX    6   6 LYS A  321  TYR A  338  1                                  18    
HELIX    7   7 PRO A  379  ASP A  381  5                                   3    
HELIX    8   8 ARG A  434  ASP A  464  1                                  31    
HELIX    9   9 VAL A  472  LEU A  485  1                                  14    
HELIX   10  10 VAL A  509  HIS A  511  5                                   3    
HELIX   11  11 LYS A  532  SER A  534  5                                   3    
HELIX   12  12 LYS A  545  MET A  555  1                                  11    
HELIX   13  13 THR A  570  LEU A  580  1                                  11    
HELIX   14  14 ALA A  586  GLU A  604  1                                  19    
HELIX   15  15 ILE A  612  LEU A  629  1                                  18    
HELIX   16  16 PRO A  726  LYS A  735  1                                  10    
HELIX   17  17 ILE A  740  LYS A  742  5                                   3    
HELIX   18  18 LYS A  746  MET A  758  1                                  13    
SHEET    1   A 3 LEU A 220  HIS A 222  0                                        
SHEET    2   A 3 PHE A 340  MET A 343 -1  O  ILE A 342   N  GLU A 221           
SHEET    3   A 3 HIS A 346  ARG A 349 -1  O  HIS A 346   N  MET A 343           
SHEET    1   B 3 LYS A 245  VAL A 246  0                                        
SHEET    2   B 3 TYR A 241  TYR A 242 -1  N  TYR A 242   O  LYS A 245           
SHEET    3   B 3 CYS A 300  ASP A 301 -1  N  ASP A 301   O  TYR A 241           
SHEET    1   C 2 GLY A 359  LEU A 360  0                                        
SHEET    2   C 2 LEU A 373  LYS A 374 -1  N  LYS A 374   O  GLY A 359           
SHEET    1   D 4 GLU A 403  ARG A 405  0                                        
SHEET    2   D 4 ILE A 383  ASN A 385  1  O  ILE A 384   N  ARG A 405           
SHEET    3   D 4 VAL A 414  THR A 417 -1  O  SER A 415   N  ILE A 383           
SHEET    4   D 4 ILE A 424  ILE A 427 -1  N  LYS A 425   O  TRP A 416           
SHEET    1   E 3 ILE A 512  LEU A 518  0                                        
SHEET    2   E 3 GLN A 521  LEU A 530 -1  O  GLN A 521   N  LEU A 518           
SHEET    3   E 3 ARG A 536  PRO A 542 -1  N  TYR A 537   O  PHE A 529           
LINK         O3'  DA C  17                 P   BRU C  18     1555   1555  1.60  
LINK         O3' BRU C  18                 P   BRU C  19     1555   1555  1.60  
LINK         O3' BRU C  19                 P    DT C  20     1555   1555  1.59  
LINK         O3'  DT D 106                 P   BRU D 107     1555   1555  1.62  
LINK         O3' BRU D 107                 P   BRU D 108     1555   1555  1.60  
LINK         O3' BRU D 108                 P   BRU D 109     1555   1555  1.59  
LINK         O3' BRU D 109                 P   BRU D 110     1555   1555  1.61  
LINK         O3' BRU D 110                 P    DC D 111     1555   1555  1.62  
LINK         O3'  DC D 111                 P   BRU D 112     1555   1555  1.62  
LINK         O3' BRU D 112                 P    DA D 113     1555   1555  1.60  
LINK         O3'  DT D 120                 P   BRU D 121     1555   1555  1.61  
LINK         O3' BRU D 121                 P    DT D 122     1555   1555  1.61  
CRYST1   71.800   66.300   71.800  90.00  98.40  90.00 P 1 21 1      2          
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      0.013928  0.000000  0.002057        0.00000                         
SCALE2      0.000000  0.015083  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.014079        0.00000