PDB Short entry for 4IVT
HEADER    HYDROLASE/HYDROLASE INHIBITOR           23-JAN-13   4IVT              
TITLE     CRYSTAL STRUCTURE OF BACE1 WITH ITS INHIBITOR                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BETA-SECRETASE 1;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 43-454;                                       
COMPND   5 SYNONYM: BACE1, ASPARTYL PROTEASE 2, ASP2, ASP 2, BETA-SITE AMYLOID  
COMPND   6 PRECURSOR PROTEIN CLEAVING ENZYME 1, BETA-SITE APP CLEAVING ENZYME 1,
COMPND   7 MEMAPSIN-2, MEMBRANE-ASSOCIATED ASPARTIC PROTEASE 2;                 
COMPND   8 EC: 3.4.23.46;                                                       
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: BACE1;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET28A                                    
KEYWDS    HYDROLASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    T.T.CHEN,L.LI,W.Y.CHEN,Y.C.XU                                         
REVDAT   1   13-NOV-13 4IVT    0                                                
JRNL        AUTH   Y.ZOU,L.LI,W.Y.CHEN,T.T.CHEN,L.MA,X.WANG,B.XIONG,Y.C.XU,     
JRNL        AUTH 2 J.SHEN                                                       
JRNL        TITL   VIRTUAL SCREENING AND STRUCTURE-BASED DISCOVERY OF INDOLE    
JRNL        TITL 2 ACYLGUANIDINES AS POTENT BETA-SECRETASE (BACE1) INHIBITORS   
JRNL        REF    MOLECULES                     V.  18  5706 2013              
JRNL        REFN                   ESSN 1420-3049                               
JRNL        PMID   23681056                                                     
JRNL        DOI    10.3390/MOLECULES18055706                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.8_1069)                     
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VICENT CHEN,IAN             
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-                     
REMARK   3               : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO,              
REMARK   3               : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL            
REMARK   3               : MORIARTY,REETAL PAI,RANDY READ,JANE                  
REMARK   3               : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM             
REMARK   3               : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH,             
REMARK   3               : LAURENT STORONI,TOM TERWILLIGER,PETER                
REMARK   3               : ZWART                                                
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MLHL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 43.25                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.990                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 68515                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.170                           
REMARK   3   R VALUE            (WORKING SET) : 0.169                           
REMARK   3   FREE R VALUE                     : 0.191                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 3.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2056                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 43.2624 -  3.9450    0.99     4618   143  0.1691 0.2161        
REMARK   3     2  3.9450 -  3.1315    1.00     4514   140  0.1666 0.1813        
REMARK   3     3  3.1315 -  2.7358    1.00     4475   138  0.1804 0.1609        
REMARK   3     4  2.7358 -  2.4857    1.00     4447   138  0.1794 0.2133        
REMARK   3     5  2.4857 -  2.3075    1.00     4424   137  0.1748 0.1779        
REMARK   3     6  2.3075 -  2.1715    1.00     4428   137  0.1628 0.1823        
REMARK   3     7  2.1715 -  2.0627    1.00     4411   136  0.1602 0.1857        
REMARK   3     8  2.0627 -  1.9729    1.00     4395   136  0.1607 0.1807        
REMARK   3     9  1.9729 -  1.8970    1.00     4424   137  0.1632 0.1910        
REMARK   3    10  1.8970 -  1.8315    1.00     4388   135  0.1651 0.1845        
REMARK   3    11  1.8315 -  1.7742    1.00     4384   136  0.1628 0.2304        
REMARK   3    12  1.7742 -  1.7235    1.00     4423   137  0.1649 0.1682        
REMARK   3    13  1.7235 -  1.6782    1.00     4388   136  0.1673 0.1988        
REMARK   3    14  1.6782 -  1.6372    1.00     4372   135  0.1717 0.1808        
REMARK   3    15  1.6372 -  1.6000    1.00     4368   135  0.1858 0.2284        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.120            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 17.200           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 21.57                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.96                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.006           3058                                  
REMARK   3   ANGLE     :  1.149           4166                                  
REMARK   3   CHIRALITY :  0.078            454                                  
REMARK   3   PLANARITY :  0.005            533                                  
REMARK   3   DIHEDRAL  : 13.243           1083                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4IVT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 29-JAN-13.                  
REMARK 100 THE RCSB ID CODE IS RCSB077272.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 12-MAY-11                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL17U                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XSCALE                             
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 68689                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 43.250                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.12400                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.6500                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.70                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.38800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.350                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 2B8L                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 54.17                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.68                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.6M LI2SO4, 100MM HEPES, 25% PEG3350,   
REMARK 280  PH 7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
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   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   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       38.38000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       38.38000            
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        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       52.34500            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       64.42000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       52.34500            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       64.42000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       38.38000            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       52.34500            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       64.42000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       38.38000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       52.34500            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       64.42000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 694  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A   -39                                                      
REMARK 465     GLY A   -38                                                      
REMARK 465     SER A   -37                                                      
REMARK 465     SER A   -36                                                      
REMARK 465     HIS A   -35                                                      
REMARK 465     HIS A   -34                                                      
REMARK 465     HIS A   -33                                                      
REMARK 465     HIS A   -32                                                      
REMARK 465     HIS A   -31                                                      
REMARK 465     HIS A   -30                                                      
REMARK 465     SER A   -29                                                      
REMARK 465     ALA A   -28                                                      
REMARK 465     GLY A   -27                                                      
REMARK 465     GLU A   -26                                                      
REMARK 465     ASN A   -25                                                      
REMARK 465     LEU A   -24                                                      
REMARK 465     TYR A   -23                                                      
REMARK 465     PHE A   -22                                                      
REMARK 465     GLN A   -21                                                      
REMARK 465     GLY A   -20                                                      
REMARK 465     THR A   -19                                                      
REMARK 465     LEU A   -18                                                      
REMARK 465     PRO A   -17                                                      
REMARK 465     ARG A   -16                                                      
REMARK 465     GLU A   -15                                                      
REMARK 465     THR A   -14                                                      
REMARK 465     ASP A   -13                                                      
REMARK 465     GLU A   -12                                                      
REMARK 465     GLU A   -11                                                      
REMARK 465     PRO A   -10                                                      
REMARK 465     GLU A    -9                                                      
REMARK 465     GLU A    -8                                                      
REMARK 465     PRO A    -7                                                      
REMARK 465     GLY A    -6                                                      
REMARK 465     ARG A    -5                                                      
REMARK 465     GLY A   158                                                      
REMARK 465     PHE A   159                                                      
REMARK 465     PRO A   160                                                      
REMARK 465     LEU A   161                                                      
REMARK 465     ASN A   162                                                      
REMARK 465     GLN A   163                                                      
REMARK 465     SER A   164                                                      
REMARK 465     GLU A   165                                                      
REMARK 465     VAL A   166                                                      
REMARK 465     LEU A   167                                                      
REMARK 465     ALA A   168                                                      
REMARK 465     SER A   169                                                      
REMARK 465     ASP A   311                                                      
REMARK 465     VAL A   312                                                      
REMARK 465     ALA A   313                                                      
REMARK 465     THR A   314                                                      
REMARK 465     PRO A   387                                                      
REMARK 465     GLN A   388                                                      
REMARK 465     THR A   389                                                      
REMARK 465     ASP A   390                                                      
REMARK 465     GLU A   391                                                      
REMARK 465     SER A   392                                                      
REMARK 465     THR A   393                                                      
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     ARG A  -4    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A   9    CD   CE   NZ                                        
REMARK 470     LYS A  65    CE   NZ                                             
REMARK 470     LYS A 107    CE   NZ                                             
REMARK 470     ARG A 128    CZ   NH1  NH2                                       
REMARK 470     LYS A 256    CE   NZ                                             
REMARK 470     ASN A 278    CG   OD1  ND2                                       
REMARK 470     GLU A 310    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 316    CG   CD   OE1  NE2                                  
REMARK 470     GLU A 364    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 380    CG   CD   OE1  OE2                                  
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   OD1  ASP A     4     O    HOH A   843              2.00            
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    TRP A 197      -86.63   -142.64                                   
REMARK 500    ASN A 293       17.20     59.91                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE VTI A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 402                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 403                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4IVS   RELATED DB: PDB                                   
DBREF  4IVT A  -18   393  UNP    P56817   BACE1_HUMAN     43    454             
SEQADV 4IVT MET A  -39  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT GLY A  -38  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT SER A  -37  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT SER A  -36  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -35  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -34  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -33  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -32  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -31  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT HIS A  -30  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT SER A  -29  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT ALA A  -28  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT GLY A  -27  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT GLU A  -26  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT ASN A  -25  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT LEU A  -24  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT TYR A  -23  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT PHE A  -22  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT GLN A  -21  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT GLY A  -20  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT THR A  -19  UNP  P56817              EXPRESSION TAG                 
SEQADV 4IVT ALA A   75  UNP  P56817    LYS   136 ENGINEERED MUTATION            
SEQADV 4IVT ALA A   77  UNP  P56817    GLU   138 ENGINEERED MUTATION            
SEQRES   1 A  433  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER ALA GLY          
SEQRES   2 A  433  GLU ASN LEU TYR PHE GLN GLY THR LEU PRO ARG GLU THR          
SEQRES   3 A  433  ASP GLU GLU PRO GLU GLU PRO GLY ARG ARG GLY SER PHE          
SEQRES   4 A  433  VAL GLU MET VAL ASP ASN LEU ARG GLY LYS SER GLY GLN          
SEQRES   5 A  433  GLY TYR TYR VAL GLU MET THR VAL GLY SER PRO PRO GLN          
SEQRES   6 A  433  THR LEU ASN ILE LEU VAL ASP THR GLY SER SER ASN PHE          
SEQRES   7 A  433  ALA VAL GLY ALA ALA PRO HIS PRO PHE LEU HIS ARG TYR          
SEQRES   8 A  433  TYR GLN ARG GLN LEU SER SER THR TYR ARG ASP LEU ARG          
SEQRES   9 A  433  LYS GLY VAL TYR VAL PRO TYR THR GLN GLY ALA TRP ALA          
SEQRES  10 A  433  GLY GLU LEU GLY THR ASP LEU VAL SER ILE PRO HIS GLY          
SEQRES  11 A  433  PRO ASN VAL THR VAL ARG ALA ASN ILE ALA ALA ILE THR          
SEQRES  12 A  433  GLU SER ASP LYS PHE PHE ILE ASN GLY SER ASN TRP GLU          
SEQRES  13 A  433  GLY ILE LEU GLY LEU ALA TYR ALA GLU ILE ALA ARG PRO          
SEQRES  14 A  433  ASP ASP SER LEU GLU PRO PHE PHE ASP SER LEU VAL LYS          
SEQRES  15 A  433  GLN THR HIS VAL PRO ASN LEU PHE SER LEU GLN LEU CYS          
SEQRES  16 A  433  GLY ALA GLY PHE PRO LEU ASN GLN SER GLU VAL LEU ALA          
SEQRES  17 A  433  SER VAL GLY GLY SER MET ILE ILE GLY GLY ILE ASP HIS          
SEQRES  18 A  433  SER LEU TYR THR GLY SER LEU TRP TYR THR PRO ILE ARG          
SEQRES  19 A  433  ARG GLU TRP TYR TYR GLU VAL ILE ILE VAL ARG VAL GLU          
SEQRES  20 A  433  ILE ASN GLY GLN ASP LEU LYS MET ASP CYS LYS GLU TYR          
SEQRES  21 A  433  ASN TYR ASP LYS SER ILE VAL ASP SER GLY THR THR ASN          
SEQRES  22 A  433  LEU ARG LEU PRO LYS LYS VAL PHE GLU ALA ALA VAL LYS          
SEQRES  23 A  433  SER ILE LYS ALA ALA SER SER THR GLU LYS PHE PRO ASP          
SEQRES  24 A  433  GLY PHE TRP LEU GLY GLU GLN LEU VAL CYS TRP GLN ALA          
SEQRES  25 A  433  GLY THR THR PRO TRP ASN ILE PHE PRO VAL ILE SER LEU          
SEQRES  26 A  433  TYR LEU MET GLY GLU VAL THR ASN GLN SER PHE ARG ILE          
SEQRES  27 A  433  THR ILE LEU PRO GLN GLN TYR LEU ARG PRO VAL GLU ASP          
SEQRES  28 A  433  VAL ALA THR SER GLN ASP ASP CYS TYR LYS PHE ALA ILE          
SEQRES  29 A  433  SER GLN SER SER THR GLY THR VAL MET GLY ALA VAL ILE          
SEQRES  30 A  433  MET GLU GLY PHE TYR VAL VAL PHE ASP ARG ALA ARG LYS          
SEQRES  31 A  433  ARG ILE GLY PHE ALA VAL SER ALA CYS HIS VAL HIS ASP          
SEQRES  32 A  433  GLU PHE ARG THR ALA ALA VAL GLU GLY PRO PHE VAL THR          
SEQRES  33 A  433  LEU ASP MET GLU ASP CYS GLY TYR ASN ILE PRO GLN THR          
SEQRES  34 A  433  ASP GLU SER THR                                              
HET    VTI  A 401      29                                                       
HET    SO4  A 402       5                                                       
HET    SO4  A 403       5                                                       
HETNAM     VTI N-{N-[4-(ACETYLAMINO)-3,5-                                       
HETNAM   2 VTI  DICHLOROBENZYL]CARBAMIMIDOYL}-2-(1H-INDOL-1-YL)                 
HETNAM   3 VTI  ACETAMIDE                                                       
HETNAM     SO4 SULFATE ION                                                      
FORMUL   2  VTI    C20 H19 CL2 N5 O2                                            
FORMUL   3  SO4    2(O4 S 2-)                                                   
FORMUL   5  HOH   *413(H2 O)                                                    
HELIX    1   1 PHE A   -1  VAL A    3  5                                   5    
HELIX    2   2 GLN A   53  SER A   57  5                                   5    
HELIX    3   3 TYR A  123  ALA A  127  5                                   5    
HELIX    4   4 PRO A  135  THR A  144  1                                  10    
HELIX    5   5 ASP A  180  SER A  182  5                                   3    
HELIX    6   6 ASP A  216  ASN A  221  1                                   6    
HELIX    7   7 LYS A  238  SER A  252  1                                  15    
HELIX    8   8 PRO A  258  LEU A  263  1                                   6    
HELIX    9   9 PRO A  276  PHE A  280  5                                   5    
HELIX   10  10 LEU A  301  TYR A  305  1                                   5    
HELIX   11  11 GLY A  334  GLU A  339  1                                   6    
HELIX   12  12 ASP A  378  CYS A  382  5                                   5    
SHEET    1   A 9 ARG A  61  PRO A  70  0                                        
SHEET    2   A 9 ALA A  75  SER A  86 -1  O  LEU A  80   N  LYS A  65           
SHEET    3   A 9 TYR A  14  VAL A  20 -1  N  THR A  19   O  SER A  86           
SHEET    4   A 9 LEU A   6  GLY A   8 -1  N  ARG A   7   O  TYR A  15           
SHEET    5   A 9 GLY A 171  ILE A 176 -1  O  GLY A 172   N  LEU A   6           
SHEET    6   A 9 PHE A 150  CYS A 155 -1  N  CYS A 155   O  GLY A 171           
SHEET    7   A 9 PHE A 341  ASP A 346 -1  O  PHE A 345   N  PHE A 150           
SHEET    8   A 9 ARG A 351  SER A 357 -1  O  ALA A 355   N  TYR A 342           
SHEET    9   A 9 TYR A 184  PRO A 192 -1  N  THR A 191   O  ILE A 352           
SHEET    1   B13 ARG A  61  PRO A  70  0                                        
SHEET    2   B13 ALA A  75  SER A  86 -1  O  LEU A  80   N  LYS A  65           
SHEET    3   B13 VAL A  95  ASP A 106 -1  O  ALA A 101   N  GLU A  79           
SHEET    4   B13 PHE A  38  GLY A  41  1  N  VAL A  40   O  ILE A 102           
SHEET    5   B13 GLY A 117  GLY A 120 -1  O  ILE A 118   N  ALA A  39           
SHEET    6   B13 GLN A  25  ASP A  32  1  N  LEU A  30   O  LEU A 119           
SHEET    7   B13 TYR A  14  VAL A  20 -1  N  VAL A  20   O  GLN A  25           
SHEET    8   B13 LEU A   6  GLY A   8 -1  N  ARG A   7   O  TYR A  15           
SHEET    9   B13 GLY A 171  ILE A 176 -1  O  GLY A 172   N  LEU A   6           
SHEET   10   B13 PHE A 150  CYS A 155 -1  N  CYS A 155   O  GLY A 171           
SHEET   11   B13 PHE A 341  ASP A 346 -1  O  PHE A 345   N  PHE A 150           
SHEET   12   B13 ARG A 351  SER A 357 -1  O  ALA A 355   N  TYR A 342           
SHEET   13   B13 TYR A 184  PRO A 192 -1  N  THR A 191   O  ILE A 352           
SHEET    1   C 5 GLU A 200  VAL A 201  0                                        
SHEET    2   C 5 SER A 225  VAL A 227 -1  O  SER A 225   N  VAL A 201           
SHEET    3   C 5 THR A 331  MET A 333  1  O  MET A 333   N  ILE A 226           
SHEET    4   C 5 LEU A 234  PRO A 237 -1  N  ARG A 235   O  VAL A 332           
SHEET    5   C 5 ILE A 324  SER A 327  1  O  SER A 325   N  LEU A 236           
SHEET    1   D 5 GLN A 211  ASP A 212  0                                        
SHEET    2   D 5 ILE A 203  ILE A 208 -1  N  ILE A 208   O  GLN A 211           
SHEET    3   D 5 ILE A 283  MET A 288 -1  O  TYR A 286   N  ARG A 205           
SHEET    4   D 5 GLN A 294  ILE A 300 -1  O  ILE A 298   N  LEU A 285           
SHEET    5   D 5 ALA A 369  VAL A 375 -1  O  GLU A 371   N  ARG A 297           
SHEET    1   E 3 VAL A 268  GLN A 271  0                                        
SHEET    2   E 3 ASP A 317  PHE A 322 -1  O  ASP A 318   N  TRP A 270           
SHEET    3   E 3 LEU A 306  VAL A 309 -1  N  ARG A 307   O  LYS A 321           
SSBOND   1 CYS A  155    CYS A  359                          1555   1555  2.04  
SSBOND   2 CYS A  217    CYS A  382                          1555   1555  2.04  
SSBOND   3 CYS A  269    CYS A  319                          1555   1555  2.03  
CISPEP   1 SER A   22    PRO A   23          0        -7.13                     
CISPEP   2 ARG A  128    PRO A  129          0         4.90                     
CISPEP   3 TYR A  222    ASP A  223          0         4.18                     
CISPEP   4 GLY A  372    PRO A  373          0        -4.21                     
SITE     1 AC1 14 ASP A  32  TYR A  71  THR A  72  GLN A  73                    
SITE     2 AC1 14 LYS A 107  PHE A 108  ILE A 110  TRP A 115                    
SITE     3 AC1 14 ASP A 228  GLY A 230  THR A 231  ARG A 235                    
SITE     4 AC1 14 HOH A 911  HOH A 912                                          
SITE     1 AC2  6 TYR A  51  GLN A  53  GLN A  55  LYS A 218                    
SITE     2 AC2  6 HOH A 657  HOH A 712                                          
SITE     1 AC3  7 SER A  22  PRO A  23  SER A  58  HIS A 145                    
SITE     2 AC3  7 PRO A 147  HOH A 560  HOH A 675                               
CRYST1  104.690  128.840   76.760  90.00  90.00  90.00 C 2 2 21      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      0.009552  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007762  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013028        0.00000