HEADER    VIRAL PROTEIN                           11-AUG-00   1FL1              
TITLE     KSHV PROTEASE                                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEASE;                                                  
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HUMAN HERPESVIRUS 8;                            
SOURCE   3 ORGANISM_TAXID: 37296;                                               
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   6 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   7 EXPRESSION_SYSTEM_PLASMID: PQE30                                     
KEYWDS    SERINE PROTEASE, ANTIVIRAL DRUG DESIGN, CAPSID MATURATION,            
KEYWDS   2 ENDOPEPTIDASE, ASSEMBLIN, VIRAL PROTEIN                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.K.REILING,T.R.PRAY,C.S.CRAIK,R.M.STROUD                             
REVDAT   6   07-FEB-24 1FL1    1       REMARK                                   
REVDAT   5   03-NOV-21 1FL1    1       REMARK SEQADV LINK                       
REVDAT   4   31-JAN-18 1FL1    1       REMARK                                   
REVDAT   3   04-OCT-17 1FL1    1       REMARK                                   
REVDAT   2   24-FEB-09 1FL1    1       VERSN                                    
REVDAT   1   22-NOV-00 1FL1    0                                                
JRNL        AUTH   K.K.REILING,T.R.PRAY,C.S.CRAIK,R.M.STROUD                    
JRNL        TITL   FUNCTIONAL CONSEQUENCES OF THE KAPOSI'S SARCOMA-ASSOCIATED   
JRNL        TITL 2 HERPESVIRUS PROTEASE STRUCTURE: REGULATION OF ACTIVITY AND   
JRNL        TITL 3 DIMERIZATION BY CONSERVED STRUCTURAL ELEMENTS.               
JRNL        REF    BIOCHEMISTRY                  V.  39 12796 2000              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   11041844                                                     
JRNL        DOI    10.1021/BI001019H                                            
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.T.BRUNGER,P.D.ADAMS,G.M.CLORE,W.L.DELANO,P.GROS,           
REMARK   1  AUTH 2 R.GROSSE-KUNSTLEVE,J.-S.JIANG,J.KUSZEWSKI,M.NILGES,          
REMARK   1  AUTH 3 N.S.PANNU,R.J.READ,L.M.RICE,T.SIMONSON,G.WARREN              
REMARK   1  TITL   CRYSTALLOGRAPHY & NMR SYSTEM: A NEW SOFTWARE SUITE FOR       
REMARK   1  TITL 2 MACROMOLECULAR STRUCTURE DETERMINATION                       
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  54   905 1998              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1  DOI    10.1107/S0907444998003254                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : CAMBRIDGE DATA BASE MODEL STRUCTURES (R. A.     
REMARK   3                      ENGH AND R. HUBER, ACTA CRYST. SECT. A., 1991)  
REMARK   3                      .                                               
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 28.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 27951                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.225                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1642                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2987                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 169                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 41.66                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.561                           
REMARK   3   BOND ANGLES            (DEGREES) : 3.800                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  RESIDUES 182 AND 207 HAD DENSITY ONLY TO THE CG                     
REMARK   3  AND WERE MODELED AS SERINES DURING REFINEMENT.                      
REMARK   4                                                                      
REMARK   4 1FL1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-OCT-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011677.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-AUG-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRL                               
REMARK 200  BEAMLINE                       : BL9-1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.98                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MAR                                
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28034                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 28.282                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY                : 5.000                              
REMARK 200  R MERGE                    (I) : 0.06200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 17.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.22                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 5.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.35100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.65                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 22% PEG-2K, 100 MM TRIS-HCL, 10%         
REMARK 280  GLYCEROL, 190 MM LISO4, PH 7.5, VAPOR DIFFUSION, HANGING DROP,      
REMARK 280  TEMPERATURE 25K, TEMPERATURE 298.0K                                 
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
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      107.68667            
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      215.37333            
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      215.37333            
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      107.68667            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE BIOLOGICAL ACTIVE ENZYME IS A HOMO-DIMER CONSTRUCTED     
REMARK 300 FROM CHAIN A AND B RELATED BY A NON-CRYSTALOGRAPHIC TWO-FOLD.        
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 17250 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -25.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 6750 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 33150 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -57.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -0.500000 -0.866025  0.000000       80.37000            
REMARK 350   BIOMT2   2 -0.866025  0.500000  0.000000       46.40164            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000      107.68667            
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     CYS A    16                                                      
REMARK 465     PRO A    17                                                      
REMARK 465     LYS A    18                                                      
REMARK 465     LEU A    19                                                      
REMARK 465     GLU A    20                                                      
REMARK 465     GLN A    21                                                      
REMARK 465     GLU A    22                                                      
REMARK 465     LEU A    23                                                      
REMARK 465     TYR A    24                                                      
REMARK 465     LEU A    25                                                      
REMARK 465     ASP A    26                                                      
REMARK 465     PRO A    27                                                      
REMARK 465     ASP A    28                                                      
REMARK 465     GLN A    29                                                      
REMARK 465     VAL A    30                                                      
REMARK 465     THR A    31                                                      
REMARK 465     ASP A    32                                                      
REMARK 465     TYR A    33                                                      
REMARK 465     LEU A    34                                                      
REMARK 465     PRO A    35                                                      
REMARK 465     VAL A    36                                                      
REMARK 465     THR A    37                                                      
REMARK 465     SER A   117                                                      
REMARK 465     ILE A   118                                                      
REMARK 465     HIS A   119                                                      
REMARK 465     PRO A   120                                                      
REMARK 465     ARG A   121                                                      
REMARK 465     GLU A   122                                                      
REMARK 465     LEU A   123                                                      
REMARK 465     SER A   124                                                      
REMARK 465     GLN A   125                                                      
REMARK 465     THR A   126                                                      
REMARK 465     PRO A   127                                                      
REMARK 465     SER A   128                                                      
REMARK 465     GLY A   129                                                      
REMARK 465     PRO A   130                                                      
REMARK 465     VAL A   131                                                      
REMARK 465     MET B     1                                                      
REMARK 465     SER B    15                                                      
REMARK 465     CYS B    16                                                      
REMARK 465     PRO B    17                                                      
REMARK 465     LYS B    18                                                      
REMARK 465     LEU B    19                                                      
REMARK 465     GLU B    20                                                      
REMARK 465     GLN B    21                                                      
REMARK 465     GLU B    22                                                      
REMARK 465     LEU B    23                                                      
REMARK 465     TYR B    24                                                      
REMARK 465     LEU B    25                                                      
REMARK 465     ASP B    26                                                      
REMARK 465     PRO B    27                                                      
REMARK 465     ARG B   121                                                      
REMARK 465     GLU B   122                                                      
REMARK 465     LEU B   123                                                      
REMARK 465     SER B   124                                                      
REMARK 465     GLN B   125                                                      
REMARK 465     THR B   126                                                      
REMARK 465     PRO B   127                                                      
REMARK 465     SER B   128                                                      
REMARK 465     GLY B   129                                                      
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     VAL A  14    CG1  CG2                                            
REMARK 470     SER A  15    OG                                                  
REMARK 470     GLU A  38    CG   CD   OE1  OE2                                  
REMARK 470     GLU A  78    CG   CD   OE1  OE2                                  
REMARK 470     LYS A  95    CG   CD   CE   NZ                                   
REMARK 470     ARG A 142    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG A 180    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU A 182    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 183    CG   OD1  OD2                                       
REMARK 470     ARG A 207    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ALA B   2    CB                                                  
REMARK 470     ASP B  28    CG   OD1  OD2                                       
REMARK 470     THR B  31    OG1  CG2                                            
REMARK 470     GLU B  78    CG   CD   OE1  OE2                                  
REMARK 470     ARG B  91    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS B  95    CG   CD   CE   NZ                                   
REMARK 470     HIS B 119    CB   CG   ND1  CD2  CE1  NE2                        
REMARK 470     ARG B 143    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     ARG B 180    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU B 182    CD   OE1  OE2                                       
REMARK 470     ARG B 207    CD   NE   CZ   NH1  NH2                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   K      K B  1001     K      K B  1001     6765     0.96            
REMARK 500   O    HOH A   290     O    HOH A   290     5555     2.04            
REMARK 500   O    HOH B  1064     O    HOH B  1064     6765     2.08            
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    HIS B 119   C   -  N   -  CA  ANGL. DEV. = -19.5 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    GLN A   3      -74.49    -94.15                                   
REMARK 500    LYS A  95      -88.40   -105.68                                   
REMARK 500    THR A 146       33.80    -91.42                                   
REMARK 500    GLU A 182       36.51    -67.33                                   
REMARK 500    ASP A 183       15.49   -156.54                                   
REMARK 500    ASP B  32       -5.03   -173.36                                   
REMARK 500    LYS B  95      -89.37   -103.75                                   
REMARK 500    THR B 146       39.61    -96.81                                   
REMARK 500    SER B 191      140.55    -38.13                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                               K B1001   K                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B 171   NE2                                                    
REMARK 620 2 HIS B 171   NE2  78.7                                              
REMARK 620 3 HIS B 175   NE2 110.3 133.3                                        
REMARK 620 4 HIS B 175   NE2  97.3  95.0 127.1                                  
REMARK 620 N                    1     2     3                                   
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 1001                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1AT3   RELATED DB: PDB                                   
REMARK 900 HERPES SIMPLEX VIRUS TYPE II PROTEASE                                
REMARK 900 RELATED ID: 1VZV   RELATED DB: PDB                                   
REMARK 900 VARICELLA-ZOSTER VIRUS PROTEASE                                      
REMARK 900 RELATED ID: 1CMV   RELATED DB: PDB                                   
REMARK 900 HUMAN CYTOMEGALOVIRUS PROTEASE                                       
REMARK 900 RELATED ID: 1WPO   RELATED DB: PDB                                   
REMARK 900 HUMAN CYTOMEGALOVIRUS PROTEASE - INHIBITED                           
REMARK 900 RELATED ID: 1LAY   RELATED DB: PDB                                   
REMARK 900 HUMAN CYTOMEGALOVIRUS PROTEASE                                       
DBREF  1FL1 A    1   230  UNP    O36607   O36607_HHV8      1    230             
DBREF  1FL1 B    1   230  UNP    O36607   O36607_HHV8      1    230             
SEQADV 1FL1 GLY A  204  UNP  O36607    SER   204 ENGINEERED MUTATION            
SEQADV 1FL1 GLY B  204  UNP  O36607    SER   204 ENGINEERED MUTATION            
SEQRES   1 A  230  MET ALA GLN GLY LEU TYR VAL GLY GLY PHE VAL ASP VAL          
SEQRES   2 A  230  VAL SER CYS PRO LYS LEU GLU GLN GLU LEU TYR LEU ASP          
SEQRES   3 A  230  PRO ASP GLN VAL THR ASP TYR LEU PRO VAL THR GLU PRO          
SEQRES   4 A  230  LEU PRO ILE THR ILE GLU HIS LEU PRO GLU THR GLU VAL          
SEQRES   5 A  230  GLY TRP THR LEU GLY LEU PHE GLN VAL SER HIS GLY ILE          
SEQRES   6 A  230  PHE CYS THR GLY ALA ILE THR SER PRO ALA PHE LEU GLU          
SEQRES   7 A  230  LEU ALA SER ARG LEU ALA ASP THR SER HIS VAL ALA ARG          
SEQRES   8 A  230  ALA PRO VAL LYS ASN LEU PRO LYS GLU PRO LEU LEU GLU          
SEQRES   9 A  230  ILE LEU HIS THR TRP LEU PRO GLY LEU SER LEU SER SER          
SEQRES  10 A  230  ILE HIS PRO ARG GLU LEU SER GLN THR PRO SER GLY PRO          
SEQRES  11 A  230  VAL PHE GLN HIS VAL SER LEU CYS ALA LEU GLY ARG ARG          
SEQRES  12 A  230  ARG GLY THR VAL ALA VAL TYR GLY HIS ASP ALA GLU TRP          
SEQRES  13 A  230  VAL VAL SER ARG PHE SER SER VAL SER LYS SER GLU ARG          
SEQRES  14 A  230  ALA HIS ILE LEU GLN HIS VAL SER SER CYS ARG LEU GLU          
SEQRES  15 A  230  ASP LEU SER THR PRO ASN PHE VAL SER PRO LEU GLU THR          
SEQRES  16 A  230  LEU MET ALA LYS ALA ILE ASP ALA GLY PHE ILE ARG ASP          
SEQRES  17 A  230  ARG LEU ASP LEU LEU LYS THR ASP ARG GLY VAL ALA SER          
SEQRES  18 A  230  ILE LEU SER PRO VAL TYR LEU LYS ALA                          
SEQRES   1 B  230  MET ALA GLN GLY LEU TYR VAL GLY GLY PHE VAL ASP VAL          
SEQRES   2 B  230  VAL SER CYS PRO LYS LEU GLU GLN GLU LEU TYR LEU ASP          
SEQRES   3 B  230  PRO ASP GLN VAL THR ASP TYR LEU PRO VAL THR GLU PRO          
SEQRES   4 B  230  LEU PRO ILE THR ILE GLU HIS LEU PRO GLU THR GLU VAL          
SEQRES   5 B  230  GLY TRP THR LEU GLY LEU PHE GLN VAL SER HIS GLY ILE          
SEQRES   6 B  230  PHE CYS THR GLY ALA ILE THR SER PRO ALA PHE LEU GLU          
SEQRES   7 B  230  LEU ALA SER ARG LEU ALA ASP THR SER HIS VAL ALA ARG          
SEQRES   8 B  230  ALA PRO VAL LYS ASN LEU PRO LYS GLU PRO LEU LEU GLU          
SEQRES   9 B  230  ILE LEU HIS THR TRP LEU PRO GLY LEU SER LEU SER SER          
SEQRES  10 B  230  ILE HIS PRO ARG GLU LEU SER GLN THR PRO SER GLY PRO          
SEQRES  11 B  230  VAL PHE GLN HIS VAL SER LEU CYS ALA LEU GLY ARG ARG          
SEQRES  12 B  230  ARG GLY THR VAL ALA VAL TYR GLY HIS ASP ALA GLU TRP          
SEQRES  13 B  230  VAL VAL SER ARG PHE SER SER VAL SER LYS SER GLU ARG          
SEQRES  14 B  230  ALA HIS ILE LEU GLN HIS VAL SER SER CYS ARG LEU GLU          
SEQRES  15 B  230  ASP LEU SER THR PRO ASN PHE VAL SER PRO LEU GLU THR          
SEQRES  16 B  230  LEU MET ALA LYS ALA ILE ASP ALA GLY PHE ILE ARG ASP          
SEQRES  17 B  230  ARG LEU ASP LEU LEU LYS THR ASP ARG GLY VAL ALA SER          
SEQRES  18 B  230  ILE LEU SER PRO VAL TYR LEU LYS ALA                          
HET      K  B1001       1                                                       
HETNAM       K POTASSIUM ION                                                    
FORMUL   3    K    K 1+                                                         
FORMUL   4  HOH   *169(H2 O)                                                    
HELIX    1   1 SER A   73  SER A   87  1                                  15    
HELIX    2   2 HIS A   88  ARG A   91  5                                   4    
HELIX    3   3 GLU A  100  LEU A  110  1                                  11    
HELIX    4   4 ASP A  153  ARG A  160  1                                   8    
HELIX    5   5 SER A  165  SER A  178  1                                  14    
HELIX    6   6 PRO A  192  GLY A  204  1                                  13    
HELIX    7   7 ASP A  208  SER A  221  1                                  14    
HELIX    8   8 SER B   73  SER B   87  1                                  15    
HELIX    9   9 HIS B   88  ARG B   91  5                                   4    
HELIX   10  10 GLU B  100  LEU B  110  1                                  11    
HELIX   11  11 ASP B  153  ARG B  160  1                                   8    
HELIX   12  12 SER B  165  SER B  178  1                                  14    
HELIX   13  13 ARG B  180  LEU B  184  5                                   5    
HELIX   14  14 PRO B  192  GLY B  204  1                                  13    
HELIX   15  15 ASP B  208  ALA B  220  1                                  13    
SHEET    1   A 7 GLY A 112  LEU A 115  0                                        
SHEET    2   A 7 VAL A 135  CYS A 138 -1  N  SER A 136   O  SER A 114           
SHEET    3   A 7 PRO A  41  ILE A  44  1  O  PRO A  41   N  VAL A 135           
SHEET    4   A 7 GLY A  53  VAL A  61 -1  O  GLY A  53   N  ILE A  42           
SHEET    5   A 7 GLY A  64  ILE A  71 -1  O  GLY A  64   N  VAL A  61           
SHEET    6   A 7 LEU A   5  ASP A  12 -1  O  LEU A   5   N  ILE A  71           
SHEET    7   A 7 VAL A 149  GLY A 151 -1  N  VAL A 149   O  GLY A   8           
SHEET    1   B 7 GLY B 112  SER B 117  0                                        
SHEET    2   B 7 PHE B 132  CYS B 138 -1  N  GLN B 133   O  SER B 116           
SHEET    3   B 7 PRO B  41  ILE B  44  1  O  PRO B  41   N  VAL B 135           
SHEET    4   B 7 GLY B  53  VAL B  61 -1  O  GLY B  53   N  ILE B  42           
SHEET    5   B 7 GLY B  64  ILE B  71 -1  O  GLY B  64   N  VAL B  61           
SHEET    6   B 7 LEU B   5  VAL B  13 -1  O  LEU B   5   N  ILE B  71           
SHEET    7   B 7 VAL B 149  GLY B 151 -1  N  VAL B 149   O  GLY B   8           
LINK         NE2 HIS B 171                 K     K B1001     1555   1555  2.42  
LINK         NE2 HIS B 171                 K     K B1001     6765   1555  2.16  
LINK         NE2 HIS B 175                 K     K B1001     1555   1555  2.38  
LINK         NE2 HIS B 175                 K     K B1001     6765   1555  3.11  
CISPEP   1 SER A  224    PRO A  225          0        -0.43                     
CISPEP   2 LEU B   34    PRO B   35          0        -0.33                     
CISPEP   3 SER B  224    PRO B  225          0         0.08                     
SITE     1 AC1  2 HIS B 171  HIS B 175                                          
CRYST1   53.580   53.580  323.060  90.00  90.00 120.00 P 31 2 1     12          
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      0.018664  0.010775  0.000000        0.00000                         
SCALE2      0.000000  0.021551  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.003095        0.00000