HEADER    HYDROLASE                               27-OCT-06   2NPH              
TITLE     CRYSTAL STRUCTURE OF HIV1 PROTEASE IN SITU PRODUCT COMPLEX            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEASE RETROPEPSIN;                                      
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 SYNONYM: HIV-1 PROTEASE;                                             
COMPND   5 EC: 3.4.23.16;                                                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 OTHER_DETAILS: OBSERVATION OF A LOW BARRIER HYDROGEN BOND BETWEEN    
COMPND   8 CATALYTIC ASPARTATES;                                                
COMPND   9 MOL_ID: 2;                                                           
COMPND  10 MOLECULE: TETRAPEPTIDE FRAGMENT;                                     
COMPND  11 CHAIN: S;                                                            
COMPND  12 ENGINEERED: YES;                                                     
COMPND  13 MOL_ID: 3;                                                           
COMPND  14 MOLECULE: PENTAPEPTIDE FRAGMENT;                                     
COMPND  15 CHAIN: T;                                                            
COMPND  16 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HUMAN IMMUNODEFICIENCY VIRUS 1;                 
SOURCE   3 ORGANISM_TAXID: 11676;                                               
SOURCE   4 GENE: POL;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21DE3;                                   
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET11A;                                   
SOURCE  10 MOL_ID: 2;                                                           
SOURCE  11 SYNTHETIC: YES;                                                      
SOURCE  12 MOL_ID: 3;                                                           
SOURCE  13 SYNTHETIC: YES                                                       
KEYWDS    ANTI-PARALLEL BETA SHEET, HYDROLASE                                   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.V.HOSUR,A.DAS,V.PRASHAR                                             
REVDAT   6   27-DEC-23 2NPH    1       REMARK                                   
REVDAT   5   20-OCT-21 2NPH    1       SEQADV                                   
REVDAT   4   31-JAN-18 2NPH    1       JRNL                                     
REVDAT   3   18-OCT-17 2NPH    1       REMARK                                   
REVDAT   2   24-FEB-09 2NPH    1       VERSN                                    
REVDAT   1   19-DEC-06 2NPH    0                                                
JRNL        AUTH   A.DAS,V.PRASHAR,S.MAHALE,L.SERRE,J.-L.FERRER,M.V.HOSUR       
JRNL        TITL   CRYSTAL STRUCTURE OF HIV-1 PROTEASE IN SITU PRODUCT COMPLEX  
JRNL        TITL 2 AND OBSERVATION OF A LOW-BARRIER HYDROGEN BOND BETWEEN       
JRNL        TITL 3 CATALYTIC ASPARTATES                                         
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 103 18464 2006              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   17116869                                                     
JRNL        DOI    10.1073/PNAS.0605809103                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   M.KUMAR,V.PRASHAR,S.MAHALE,M.V.HOSUR                         
REMARK   1  TITL   OBSERVATION OF A TETRAHEDRAL REACTION INTERMEDIATE IN HIV-1  
REMARK   1  TITL 2 PROTEASE SUBSTRATE COMPLEX                                   
REMARK   1  REF    BIOCHEM.J.                    V. 389   365 2005              
REMARK   1  REFN                   ISSN 0264-6021                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   B.PILLAI,S.V.BHAT,K.K.KANNAN,M.V.HOSUR                       
REMARK   1  TITL   RAPID SCREENING FOR HIV-1 PROTEASE INHIBITOR LEADS THROUGH   
REMARK   1  TITL 2 X-RAY DIFFRACTION                                            
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  60   594 2004              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   B.PILLAI,K.K.KANNAN,M.V.HOSUR                                
REMARK   1  TITL   1.9A X-RAY STUDY SHOWS CLOSED FLAP CONFORMATION IN CRYSTALS  
REMARK   1  TITL 2 OF TETHERED HIV-1 PR                                         
REMARK   1  REF    PROTEINS                      V.  43    57 2001              
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   M.KUMAR,K.K.KANNAN,M.V.HOSUR,N.S.BHAVESH,A.CHATTERJEE,       
REMARK   1  AUTH 2 R.MITTAL,R.V.HOSUR                                           
REMARK   1  TITL   EFFECTS OF REMOTE MUTATION ON THE AUTOLYSIS OF HIV-1 PR:     
REMARK   1  TITL 2 X-RAY AND NMR INVESTIGATIONS                                 
REMARK   1  REF    BIOCHEM.BIOPHYS.RES.COMMUN.   V. 294   395 2002              
REMARK   1  REFN                   ISSN 0006-291X                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.65 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.65                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.53                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 20326                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.216                           
REMARK   3   R VALUE            (WORKING SET) : 0.214                           
REMARK   3   FREE R VALUE                     : 0.259                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1069                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.65                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.69                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1501                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.0                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3020                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 79                           
REMARK   3   BIN FREE R VALUE                    : 0.3150                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1585                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 156                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 39.30                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 33.43                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.36000                                              
REMARK   3    B22 (A**2) : 0.36000                                              
REMARK   3    B33 (A**2) : -0.54000                                             
REMARK   3    B12 (A**2) : 0.18000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.130         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.127         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.097         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.895         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.957                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.935                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1611 ; 0.015 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2183 ; 1.546 ; 1.989       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   203 ; 5.207 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    58 ;40.938 ;24.828       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   290 ;12.526 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     8 ;14.582 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   260 ; 0.104 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1163 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   823 ; 0.253 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1113 ; 0.331 ; 0.500       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   190 ; 0.283 ; 0.700       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    82 ; 0.288 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    38 ; 0.760 ; 0.700       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  1041 ; 1.160 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1652 ; 1.945 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   634 ; 2.941 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   531 ; 4.892 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 4                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A    99                          
REMARK   3    RESIDUE RANGE :   B  1001        B  1099                          
REMARK   3    ORIGIN FOR THE GROUP (A): -11.3595  19.7577  27.6314              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:  -0.0561 T22:  -0.0027                                     
REMARK   3      T33:  -0.0374 T12:  -0.0396                                     
REMARK   3      T13:  -0.0121 T23:  -0.0068                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.8083 L22:   1.1209                                     
REMARK   3      L33:   1.8569 L12:   1.5143                                     
REMARK   3      L13:   2.2714 L23:   1.3023                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0014 S12:  -0.0063 S13:  -0.0667                       
REMARK   3      S21:  -0.0113 S22:   0.0283 S23:  -0.0373                       
REMARK   3      S31:   0.0012 S32:   0.0131 S33:  -0.0297                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 0                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    ORIGIN FOR THE GROUP (A):   0.0000   0.0000   0.0000              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0000 T22:   0.0000                                     
REMARK   3      T33:   0.0000 T12:   0.0000                                     
REMARK   3      T13:   0.0000 T23:   0.0000                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0000 L22:   0.0000                                     
REMARK   3      L33:   0.0000 L12:   0.0000                                     
REMARK   3      L13:   0.0000 L23:   0.0000                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0000 S12:   0.0000 S13:   0.0000                       
REMARK   3      S21:   0.0000 S22:   0.0000 S23:   0.0000                       
REMARK   3      S31:   0.0000 S32:   0.0000 S33:   0.0000                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   S     1        S     4                          
REMARK   3    RESIDUE RANGE :   T     5        T     9                          
REMARK   3    ORIGIN FOR THE GROUP (A):  -8.1150  14.9498  26.8550              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:  -0.0009 T22:   0.0004                                     
REMARK   3      T33:  -0.0018 T12:  -0.0007                                     
REMARK   3      T13:  -0.0007 T23:  -0.0019                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:  10.5838 L22:  12.4109                                     
REMARK   3      L33:  23.3387 L12:  11.4536                                     
REMARK   3      L13: -14.3140 L23: -15.7430                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.2695 S12:   0.0426 S13:  -1.3048                       
REMARK   3      S21:  -0.2896 S22:   0.2070 S23:  -1.1424                       
REMARK   3      S31:   0.1841 S32:   0.4474 S33:   0.0625                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 0                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    ORIGIN FOR THE GROUP (A):   0.0000   0.0000   0.0000              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0000 T22:   0.0000                                     
REMARK   3      T33:   0.0000 T12:   0.0000                                     
REMARK   3      T13:   0.0000 T23:   0.0000                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0000 L22:   0.0000                                     
REMARK   3      L33:   0.0000 L12:   0.0000                                     
REMARK   3      L13:   0.0000 L23:   0.0000                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0000 S12:   0.0000 S13:   0.0000                       
REMARK   3      S21:   0.0000 S22:   0.0000 S23:   0.0000                       
REMARK   3      S31:   0.0000 S32:   0.0000 S33:   0.0000                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 2NPH COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-NOV-06.                  
REMARK 100 THE DEPOSITION ID IS D_1000040143.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.2                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM30A                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97945                            
REMARK 200  MONOCHROMATOR                  : SI 111                             
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 20326                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.650                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 32.530                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.0                               
REMARK 200  DATA REDUNDANCY                : 5.530                              
REMARK 200  R MERGE                    (I) : 0.08100                            
REMARK 200  R SYM                      (I) : 0.08100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.1600                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.69                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.01                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE PRECIPITANT, PH 6.2,    
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61                             
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   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
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       27.26000            
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       54.52000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       40.89000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       68.15000            
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       13.63000            
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 300 REMARK: THE FUNCTIONAL DIMER IS IN THE ASYMMETRIC UNIT.              
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 5480 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9140 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -26.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, S, T                            
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 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     MET B1095    CG   SD   CE                                        
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH B   319     O    HOH B   373              1.21            
REMARK 500   O    HOH B   330     O    HOH B   381              1.30            
REMARK 500   O    HOH A   468     O    HOH A   469              1.37            
REMARK 500   NZ   LYS A    20     O    HOH A   399              1.56            
REMARK 500   O    HOH A   409     O    HOH A   424              1.58            
REMARK 500   O    HOH B   391     O    HOH B   463              1.72            
REMARK 500   O    HOH A   310     O    HOH A   370              1.87            
REMARK 500   O    GLU A    35     O    HOH A   406              1.96            
REMARK 500   SG   CYS B  1067     O    HOH B   488              1.98            
REMARK 500   O    MET B  1095     O    HOH B   395              2.11            
REMARK 500   O    HOH A   455     O    HOH B   458              2.11            
REMARK 500   O    TRP A    42     O    HOH A   421              2.11            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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   O    HOH A   316     O    HOH B   475     6665     1.16            
REMARK 500   O    HOH A   345     O    HOH B   395     2665     1.34            
REMARK 500   O    HOH A   447     O    HOH B   494     2565     1.44            
REMARK 500   O    HOH A   344     O    HOH B   393     2665     1.52            
REMARK 500   O    HOH A   398     O    HOH A   500     2665     1.69            
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    PRO A  79       48.73    -71.48                                   
REMARK 500    PRO B1044      155.62    -48.15                                   
REMARK 500    PRO B1079       42.32    -75.07                                   
REMARK 500    THR S   3       72.04   -100.00                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1G6L   RELATED DB: PDB                                   
REMARK 900 UNLIGANDED CLOSED-FLAP STRUCTURE OF TETHERED HIV-1 PR                
REMARK 900 RELATED ID: 1LV1   RELATED DB: PDB                                   
REMARK 900 UNLIGANDED CLOSED-FLAP STRUCTURE OF C1095A MUTANT OF TETHERED HIV-1  
REMARK 900 PR                                                                   
DBREF  2NPH A    1    99  UNP    Q72874   Q72874_9HIV1     1     99             
DBREF  2NPH B 1001  1099  UNP    Q72874   Q72874_9HIV1     1     99             
DBREF  2NPH S    1     4  PDB    2NPH     2NPH             1      4             
DBREF  2NPH T    5     9  PDB    2NPH     2NPH             5      9             
SEQADV 2NPH MET A   95  UNP  Q72874    CYS    95 ENGINEERED MUTATION            
SEQADV 2NPH MET B 1095  UNP  Q72874    CYS    95 ENGINEERED MUTATION            
SEQRES   1 A   99  PRO GLN VAL THR LEU TRP GLN ARG PRO LEU VAL THR ILE          
SEQRES   2 A   99  LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASP THR          
SEQRES   3 A   99  GLY ALA ASP ASP THR VAL LEU GLU GLU MET SER LEU PRO          
SEQRES   4 A   99  GLY ARG TRP LYS PRO LYS MET ILE GLY GLY ILE GLY GLY          
SEQRES   5 A   99  PHE ILE LYS VAL ARG GLN TYR ASP GLN ILE LEU ILE GLU          
SEQRES   6 A   99  ILE CYS GLY HIS LYS ALA ILE GLY THR VAL LEU VAL GLY          
SEQRES   7 A   99  PRO THR PRO VAL ASN ILE ILE GLY ARG ASN LEU LEU THR          
SEQRES   8 A   99  GLN ILE GLY MET THR LEU ASN PHE                              
SEQRES   1 B   99  PRO GLN VAL THR LEU TRP GLN ARG PRO LEU VAL THR ILE          
SEQRES   2 B   99  LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASP THR          
SEQRES   3 B   99  GLY ALA ASP ASP THR VAL LEU GLU GLU MET SER LEU PRO          
SEQRES   4 B   99  GLY ARG TRP LYS PRO LYS MET ILE GLY GLY ILE GLY GLY          
SEQRES   5 B   99  PHE ILE LYS VAL ARG GLN TYR ASP GLN ILE LEU ILE GLU          
SEQRES   6 B   99  ILE CYS GLY HIS LYS ALA ILE GLY THR VAL LEU VAL GLY          
SEQRES   7 B   99  PRO THR PRO VAL ASN ILE ILE GLY ARG ASN LEU LEU THR          
SEQRES   8 B   99  GLN ILE GLY MET THR LEU ASN PHE                              
SEQRES   1 S    4  ALA GLU THR PHE                                              
SEQRES   1 T    5  TYR VAL ASP GLY ALA                                          
FORMUL   5  HOH   *156(H2 O)                                                    
HELIX    1   1 GLY A   86  THR A   91  1                                   6    
HELIX    2   2 GLN A   92  GLY A   94  5                                   3    
HELIX    3   3 GLY B 1086  THR B 1091  1                                   6    
HELIX    4   4 GLN B 1092  GLY B 1094  5                                   3    
SHEET    1   A 4 VAL A   3  THR A   4  0                                        
SHEET    2   A 4 THR B1096  ASN B1098 -1  O  LEU B1097   N  VAL A   3           
SHEET    3   A 4 THR A  96  ASN A  98 -1  N  ASN A  98   O  THR B1096           
SHEET    4   A 4 GLN B1002  THR B1004 -1  O  VAL B1003   N  LEU A  97           
SHEET    1   B 8 LYS A  43  GLY A  49  0                                        
SHEET    2   B 8 GLY A  52  ILE A  66 -1  O  VAL A  56   N  LYS A  45           
SHEET    3   B 8 HIS A  69  VAL A  77 -1  O  HIS A  69   N  ILE A  66           
SHEET    4   B 8 VAL A  32  LEU A  33  1  N  LEU A  33   O  LEU A  76           
SHEET    5   B 8 ILE A  84  ILE A  85 -1  O  ILE A  84   N  VAL A  32           
SHEET    6   B 8 GLN A  18  LEU A  24  1  N  LEU A  23   O  ILE A  85           
SHEET    7   B 8 LEU A  10  ILE A  15 -1  N  VAL A  11   O  ALA A  22           
SHEET    8   B 8 GLY A  52  ILE A  66 -1  O  GLU A  65   N  LYS A  14           
SHEET    1   C 8 LYS B1043  GLY B1049  0                                        
SHEET    2   C 8 GLY B1052  ILE B1066 -1  O  GLY B1052   N  GLY B1049           
SHEET    3   C 8 HIS B1069  VAL B1077 -1  O  VAL B1077   N  ARG B1057           
SHEET    4   C 8 VAL B1032  LEU B1033  1  N  LEU B1033   O  LEU B1076           
SHEET    5   C 8 ILE B1084  ILE B1085 -1  O  ILE B1084   N  VAL B1032           
SHEET    6   C 8 GLN B1018  LEU B1024  1  N  LEU B1023   O  ILE B1085           
SHEET    7   C 8 LEU B1010  ILE B1015 -1  N  ILE B1013   O  LYS B1020           
SHEET    8   C 8 GLY B1052  ILE B1066 -1  O  GLU B1065   N  LYS B1014           
CRYST1   62.030   62.030   81.780  90.00  90.00 120.00 P 61         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      0.016121  0.009308  0.000000        0.00000                         
SCALE2      0.000000  0.018615  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012228        0.00000