HEADER    HYDROLASE/HYDROLASE INHIBITOR           25-JUL-00   1FG6              
TITLE     STRUCTURAL IMPLICATIONS OF DRUG RESISTANT MUTANTS OF HIV-1 PROTEASE:  
TITLE    2 HIGH RESOLUTION CRYSTAL STRUCTURES OF THE MUTANT PROTEASE/SUBSTRATE  
TITLE    3 ANALOG COMPLEXES                                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEASE RETROPEPSIN;                                      
COMPND   3 CHAIN: C, D;                                                         
COMPND   4 EC: 3.4.23.16;                                                       
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 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    HIV-1 PROTEASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.MAHALINGAM,J.M.LOUIS,R.W.HARRISON,I.T.WEBER                         
REVDAT   7   13-MAR-24 1FG6    1       COMPND SOURCE                            
REVDAT   6   07-FEB-24 1FG6    1       REMARK                                   
REVDAT   5   03-NOV-21 1FG6    1       REMARK SEQADV                            
REVDAT   4   09-MAY-12 1FG6    1       CAVEAT REMARK                            
REVDAT   3   13-JUL-11 1FG6    1       VERSN                                    
REVDAT   2   24-FEB-09 1FG6    1       VERSN                                    
REVDAT   1   01-JUN-01 1FG6    0                                                
JRNL        AUTH   B.MAHALINGAM,J.M.LOUIS,J.HUNG,R.W.HARRISON,I.T.WEBER         
JRNL        TITL   STRUCTURAL IMPLICATIONS OF DRUG-RESISTANT MUTANTS OF HIV-1   
JRNL        TITL 2 PROTEASE: HIGH-RESOLUTION CRYSTAL STRUCTURES OF THE MUTANT   
JRNL        TITL 3 PROTEASE/SUBSTRATE ANALOGUE COMPLEXES.                       
JRNL        REF    PROTEINS                      V.  43   455 2001              
JRNL        REFN                   ISSN 0887-3585                               
JRNL        PMID   11340661                                                     
JRNL        DOI    10.1002/PROT.1057                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : X-PLOR 3.843                                         
REMARK   3   AUTHORS     : BRUNGER                                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
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             : NULL                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.219                           
REMARK   3   FREE R VALUE                     : 0.248                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1190                            
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            : 1512                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 54                                      
REMARK   3   SOLVENT ATOMS            : 111                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  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) : NULL                            
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
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  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: NULL                                      
REMARK   4                                                                      
REMARK   4 1FG6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-AUG-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011563.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 09-OCT-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 90                                 
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X12B                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.037                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.800                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.06800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.88                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 90.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.31300                            
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   (%): 51.56                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.54                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: CITRATE/PHOSPHATE BUFFER 0.05M, DTT      
REMARK 280  10MM, DMSO 10%, SATURATED AMMONIUM SULPHAT25-50%, PROTEIN 2-5 MG/   
REMARK 280  ML, PH 5.0-6.5. VAPOR DIFFUSION, HANGING DROP AT 298K               
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X+1/2,Y+1/2,-Z                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000       28.65750            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       42.71350            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       28.65750            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       42.71350            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER CONSISTING OF CHAINS C    
REMARK 300 AND D                                                                
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: 5490 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9180 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -30.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D                                  
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 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 THE INHIBITOR 2NC HAS A REDUCED PEPTIDE BOND ISOSTERE [CH2-NH] IN    
REMARK 600 PLACE OF THE SCISSILE AMIDE. THE COORDINATES OF 2NC WERE DEPOSITED   
REMARK 600 WITH AN EXTRA ATOM O6 AT ZERO OCCUPANCY. THIS ZERO OCCUPANCY O6 HAS  
REMARK 600 BEEN REMOVED FROM THE RELEASED FILE.                                 
REMARK 630                                                                      
REMARK 630 MOLECULE TYPE: PEPTIDE-LIKE INHIBITOR                                
REMARK 630 MOLECULE NAME: N-{(2S)-2-[(N-ACETYL-L-THREONYL-L-ISOLEUCYL)AMINO]    
REMARK 630 HEXYL}-L-NORLEUCYL-L-GLUTAMINYL-N~5~-[AMINO(IMINIO)METHYL]-L-        
REMARK 630 ORNITHINAMIDE                                                        
REMARK 630 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 630  SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                           
REMARK 630                                                                      
REMARK 630   M RES C SSSEQI                                                     
REMARK 630     2NC D   300                                                      
REMARK 630 SOURCE: NULL                                                         
REMARK 630 TAXONOMY: NULL                                                       
REMARK 630 SUBCOMP:    ACE THR ILE 2A0 GLN ARG NH2                              
REMARK 630 DETAILS: NULL                                                        
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 2NC D 300                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1A94   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1DAZ   RELATED DB: PDB                                   
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 MUTATIONS Q7K, L33I, L63I, C67A, C95A, HAVE BEEN MADE TO             
REMARK 999 STABILIZE THE PROTEASE FROM AUTOPROTEOLYSIS, WHILE                   
REMARK 999 RETAINING ACTIVITY SIMILAR TO WILD-TYPE HIV-1 PROTEASE               
DBREF  1FG6 C    1    99  UNP    P04587   POL_HV1B5       69    167             
DBREF  1FG6 D  101   199  UNP    P04587   POL_HV1B5       69    167             
SEQADV 1FG6 LYS C    7  UNP  P04587    GLN    75 ENGINEERED MUTATION            
SEQADV 1FG6 ILE C   33  UNP  P04587    LEU   101 ENGINEERED MUTATION            
SEQADV 1FG6 ILE C   63  UNP  P04587    LEU   131 ENGINEERED MUTATION            
SEQADV 1FG6 ALA C   67  UNP  P04587    CYS   135 ENGINEERED MUTATION            
SEQADV 1FG6 ASP C   88  UNP  P04587    ASN   156 ENGINEERED MUTATION            
SEQADV 1FG6 ALA C   95  UNP  P04587    CYS   163 ENGINEERED MUTATION            
SEQADV 1FG6 LYS D  107  UNP  P04587    GLN    75 ENGINEERED MUTATION            
SEQADV 1FG6 ILE D  133  UNP  P04587    LEU   101 ENGINEERED MUTATION            
SEQADV 1FG6 ILE D  163  UNP  P04587    LEU   131 ENGINEERED MUTATION            
SEQADV 1FG6 ALA D  167  UNP  P04587    CYS   135 ENGINEERED MUTATION            
SEQADV 1FG6 ASP D  188  UNP  P04587    ASN   156 ENGINEERED MUTATION            
SEQADV 1FG6 ALA D  195  UNP  P04587    CYS   163 ENGINEERED MUTATION            
SEQRES   1 C   99  PRO GLN ILE THR LEU TRP LYS ARG PRO LEU VAL THR ILE          
SEQRES   2 C   99  LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASP THR          
SEQRES   3 C   99  GLY ALA ASP ASP THR VAL ILE GLU GLU MET SER LEU PRO          
SEQRES   4 C   99  GLY ARG TRP LYS PRO LYS MET ILE GLY GLY ILE GLY GLY          
SEQRES   5 C   99  PHE ILE LYS VAL ARG GLN TYR ASP GLN ILE ILE ILE GLU          
SEQRES   6 C   99  ILE ALA GLY HIS LYS ALA ILE GLY THR VAL LEU VAL GLY          
SEQRES   7 C   99  PRO THR PRO VAL ASN ILE ILE GLY ARG ASP LEU LEU THR          
SEQRES   8 C   99  GLN ILE GLY ALA THR LEU ASN PHE                              
SEQRES   1 D   99  PRO GLN ILE THR LEU TRP LYS ARG PRO LEU VAL THR ILE          
SEQRES   2 D   99  LYS ILE GLY GLY GLN LEU LYS GLU ALA LEU LEU ASP THR          
SEQRES   3 D   99  GLY ALA ASP ASP THR VAL ILE GLU GLU MET SER LEU PRO          
SEQRES   4 D   99  GLY ARG TRP LYS PRO LYS MET ILE GLY GLY ILE GLY GLY          
SEQRES   5 D   99  PHE ILE LYS VAL ARG GLN TYR ASP GLN ILE ILE ILE GLU          
SEQRES   6 D   99  ILE ALA GLY HIS LYS ALA ILE GLY THR VAL LEU VAL GLY          
SEQRES   7 D   99  PRO THR PRO VAL ASN ILE ILE GLY ARG ASP LEU LEU THR          
SEQRES   8 D   99  GLN ILE GLY ALA THR LEU ASN PHE                              
HET    2NC  D 300      54                                                       
HETNAM     2NC N-{(2S)-2-[(N-ACETYL-L-THREONYL-L-ISOLEUCYL)                     
HETNAM   2 2NC  AMINO]HEXYL}-L-NORLEUCYL-L-GLUTAMINYL-N~5~-                     
HETNAM   3 2NC  [AMINO(IMINIO)METHYL]-L-ORNITHINAMIDE                           
HETSYN     2NC P2/NC                                                            
FORMUL   3  2NC    C35 H68 N11 O8 1+                                            
FORMUL   4  HOH   *111(H2 O)                                                    
HELIX    1   1 GLY C   86  THR C   91  1                                   6    
HELIX    2   2 GLY D  186  ILE D  193  1                                   8    
SHEET    1   A 4 GLN C   2  THR C   4  0                                        
SHEET    2   A 4 THR D 196  ASN D 198 -1  O  LEU D 197   N  ILE C   3           
SHEET    3   A 4 THR C  96  ASN C  98 -1  O  THR C  96   N  ASN D 198           
SHEET    4   A 4 GLN D 102  THR D 104 -1  N  ILE D 103   O  LEU C  97           
SITE     1 AC1 26 LEU C  23  ASP C  25  GLY C  27  ALA C  28                    
SITE     2 AC1 26 ASP C  29  ASP C  30  GLY C  48  GLY C  49                    
SITE     3 AC1 26 VAL C  82  ILE C  84  HOH C 101  HOH D  19                    
SITE     4 AC1 26 HOH D  39  HOH D  62  ASP D 125  GLY D 127                    
SITE     5 AC1 26 ALA D 128  ASP D 129  ASP D 130  ILE D 147                    
SITE     6 AC1 26 GLY D 148  GLY D 149  VAL D 182  HOH D 205                    
SITE     7 AC1 26 HOH D 240  HOH D 257                                          
CRYST1   57.315   85.427   46.186  90.00  90.00  90.00 P 21 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      0.017447  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.011706  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021652        0.00000