PDB Short entry for 3U71
HEADER    HYDROLASE                               13-OCT-11   3U71              
TITLE     CRYSTAL STRUCTURE ANALYSIS OF SOUTH AFRICAN WILD TYPE HIV-1 SUBTYPE C 
TITLE    2 PROTEASE                                                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HIV-1 PROTEASE;                                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 1-99;                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: 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;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYSS;                            
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET-11B                                   
KEYWDS    BETA SHEET, APO, PROTEASE, SOUTH AFRICAN, NON-B SUBTYPE, VIRAL        
KEYWDS   2 POLYPROTEIN, HYDROLASE                                               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    P.NAICKER,S.FANUCCHI,I.A.ACHILONU,M.A.FERNANDES,H.W.DIRR,Y.SAYED      
REVDAT   1   17-OCT-12 3U71    0                                                
JRNL        AUTH   P.NAICKER,S.FANUCCHI,I.A.ACHILONU,M.A.FERNANDES,H.W.DIRR,    
JRNL        AUTH 2 Y.SAYED                                                      
JRNL        TITL   CRYSTAL STRUCTURE ANALYSIS OF SOUTH AFRICAN WILD TYPE HIV-1  
JRNL        TITL 2 SUBTYPE C APO PROTEASE                                       
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.72 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0102                                      
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.72                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 41.73                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 3193                           
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) : 0.220                           
REMARK   3   R VALUE            (WORKING SET) : 0.217                           
REMARK   3   FREE R VALUE                     : 0.283                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.300                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 137                             
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) : 2.72                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.79                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 208                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.00                       
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3500                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 9                            
REMARK   3   BIN FREE R VALUE                    : 0.3050                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 755                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 25.79                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.08000                                              
REMARK   3    B22 (A**2) : 0.08000                                              
REMARK   3    B33 (A**2) : -0.16000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
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): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.388         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.313         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 36.150        
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.922                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.860                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   767 ; 0.017 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1037 ; 1.776 ; 1.998       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):    98 ; 6.389 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    25 ;38.890 ;25.600       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   147 ;17.039 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     3 ; 6.506 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   124 ; 0.110 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   541 ; 0.005 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):   488 ; 0.641 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   793 ; 1.223 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   279 ; 1.702 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   244 ; 2.899 ; 4.500       
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  : 1                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A    99                          
REMARK   3    ORIGIN FOR THE GROUP (A):  -2.6229  -4.5867 -11.2942              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0218 T22:   0.0761                                     
REMARK   3      T33:   0.0419 T12:   0.0143                                     
REMARK   3      T13:  -0.0066 T23:  -0.0160                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.4157 L22:   0.4314                                     
REMARK   3      L33:   2.5586 L12:   0.4203                                     
REMARK   3      L13:   0.2807 L23:   0.2630                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0378 S12:   0.1505 S13:  -0.0464                       
REMARK   3      S21:  -0.0112 S22:   0.1308 S23:  -0.0616                       
REMARK   3      S31:  -0.0731 S32:  -0.0192 S33:  -0.0930                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
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 U VALUES : WITH TLS ADDED                                 
REMARK   4                                                                      
REMARK   4 3U71 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-OCT-11.                  
REMARK 100 THE RCSB ID CODE IS RCSB068386.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 05-OCT-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 113                                
REMARK 200  PH                             : 5                                  
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : BRUKER AXS MICROSTAR               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : BRUKER PLATINUM 135                
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : SAINT                              
REMARK 200  DATA SCALING SOFTWARE          : SAINT                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 3193                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.697                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 49.980                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : 8.180                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.20000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 91.2040                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.79                     
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) : 0.41300                            
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: MOLREP                                                
REMARK 200 STARTING MODEL: 2R8N                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 49.75                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.45                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2 M SODIUM CITRATE TRIBASIC            
REMARK 280  DIHYDRATE, 20% W/V PEG3350, VAPOR DIFFUSION, HANGING DROP,          
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+1/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+3/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+1/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+3/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
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        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       49.98000            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       22.96400            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       22.96400            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       24.99000            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       22.96400            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       22.96400            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       74.97000            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       22.96400            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       22.96400            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       24.99000            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       22.96400            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       22.96400            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       74.97000            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       49.98000            
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: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3020 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 10510 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -19.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   OE1  GLU A    35     NH2  ARG A    57              1.90            
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   9       68.02    -69.40                                   
REMARK 500    CYS A  67       43.26     36.07                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  3U71 A    1    99  UNP    Q994Q3   Q994Q3_9HIV1    59    157             
SEQADV 3U71 LYS A    7  UNP  Q994Q3    GLN    65 ENGINEERED MUTATION            
SEQRES   1 A   99  PRO GLN ILE THR LEU TRP LYS ARG PRO LEU VAL SER ILE          
SEQRES   2 A   99  LYS VAL GLY GLY GLN ILE LYS GLU ALA LEU LEU ASP THR          
SEQRES   3 A   99  GLY ALA ASP ASP THR VAL LEU GLU GLU ILE ASN LEU PRO          
SEQRES   4 A   99  GLY LYS 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 LYS LYS ALA ILE GLY THR VAL LEU VAL GLY          
SEQRES   7 A   99  PRO THR PRO VAL ASN ILE ILE GLY ARG ASN MET LEU THR          
SEQRES   8 A   99  GLN LEU GLY CYS THR LEU ASN PHE                              
HELIX    1   1 GLY A   86  THR A   91  1                                   6    
SHEET    1   A 8 LYS A  43  GLY A  48  0                                        
SHEET    2   A 8 PHE A  53  ILE A  66 -1  O  ILE A  54   N  ILE A  47           
SHEET    3   A 8 LYS A  69  VAL A  77 -1  O  GLY A  73   N  ILE A  62           
SHEET    4   A 8 VAL A  32  LEU A  33  1  N  LEU A  33   O  LEU A  76           
SHEET    5   A 8 ASN A  83  ILE A  85 -1  O  ILE A  84   N  VAL A  32           
SHEET    6   A 8 GLN A  18  LEU A  24  1  N  LEU A  23   O  ASN A  83           
SHEET    7   A 8 LEU A  10  VAL A  15 -1  N  VAL A  11   O  ALA A  22           
SHEET    8   A 8 PHE A  53  ILE A  66 -1  O  GLU A  65   N  LYS A  14           
CRYST1   45.928   45.928   99.960  90.00  90.00  90.00 P 41 21 2     8          
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      0.021773  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.021773  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.010004        0.00000