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Database: PDB
Entry: 1APT
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Original site: 1APT 
HEADER    HYDROLASE/HYDROLASE INHIBITOR           16-DEC-91   1APT              
TITLE     CRYSTALLOGRAPHIC ANALYSIS OF A PEPSTATIN ANALOGUE BINDING TO THE      
TITLE    2 ASPARTYL PROTEINASE PENICILLOPEPSIN AT 1.8 ANGSTROMS RESOLUTION      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PENICILLOPEPSIN;                                           
COMPND   3 CHAIN: E;                                                            
COMPND   4 EC: 3.4.23.20;                                                       
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: INHIBITOR ISOVALERYL (IVA)-VAL-VAL-LYSTA-O-ET (LYSTA IS A  
COMPND   8 LYSYL SIDE CHAIN ANALOGUE OF STATIN;                                 
COMPND   9 CHAIN: I;                                                            
COMPND  10 ENGINEERED: YES;                                                     
COMPND  11 OTHER_DETAILS: TRANSITION STATE MIMIC INHIBITOR                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PENICILLIUM JANTHINELLUM;                       
SOURCE   3 ORGANISM_COMMON: PENICILLIUM VITALE;                                 
SOURCE   4 ORGANISM_TAXID: 5079;                                                
SOURCE   5 MOL_ID: 2                                                            
KEYWDS    ACID PROTEINASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.R.SIELECKI,M.N.G.JAMES                                              
REVDAT   5   29-JUL-20 1APT    1       COMPND REMARK HETNAM LINK                
REVDAT   5 2                   1       SITE                                     
REVDAT   4   13-JUL-11 1APT    1       VERSN                                    
REVDAT   3   25-AUG-09 1APT    1       SOURCE                                   
REVDAT   2   24-FEB-09 1APT    1       VERSN                                    
REVDAT   1   31-JAN-94 1APT    0                                                
JRNL        AUTH   M.N.G.JAMES,A.R.SIELECKI,J.MOULT                             
JRNL        TITL   CRYSTALLOGRAPHIC ANALYSIS OF A PEPSTATIN ANALOGUE BINDING TO 
JRNL        TITL 2 THE ASPARTYL PROTEINASE PENICILLOPEPSIN AT 1.8 ANGSTROMS     
JRNL        TITL 3 RESOLUTION                                                   
JRNL        EDIT   V.J.HRUBY, D.H.RICH                                          
JRNL        REF    PEPTIDES: STRUCTURE AND       V.   1   521 1983              
JRNL        REF  2 FUNCTION, PROCEEDINGS OF THE                                 
JRNL        REF  3 OF THE EIGHTH AMERICAN                                       
JRNL        REF  4 PEPTIDE SYMPOSIUM                                            
JRNL        PUBL   PIERCE CHEMICAL COMPANY,ROCKFORD,IL                          
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.R.SIELECKI,K.HAYAKAWA,M.H.GELB                 
REMARK   1  TITL   CRYSTALLOGRAPHIC ANALYSIS OF TRANSITION STATE MIMICS BOUND   
REMARK   1  TITL 2 TO PENICILLOPEPSIN: DIFLUOROSTATINE-AND                      
REMARK   1  TITL 3 DIFLUOROSTATONE-CONTAINING PEPTIDES                          
REMARK   1  REF    BIOCHEMISTRY                  V.  31  3872 1992              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.R.SIELECKI                                     
REMARK   1  TITL   ASPARTIC PROTEINASES AND THEIR CATALYTIC PATHWAY             
REMARK   1  EDIT   F.A.JURNAK, A.MCPHERSON                                      
REMARK   1  REF    BIOLOGICAL MACROMOLECULES     V.   3   414 1987              
REMARK   1  REF  2 AND ASSEMBLIES                                               
REMARK   1  PUBL   JOHN WILEY AND SONS,NEW YORK                                 
REMARK   1  REFN                   ISSN 0-471-85142-6                           
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.R.SIELECKI                                     
REMARK   1  TITL   STEREOCHEMICAL ANALYSIS OF PEPTIDE BOND HYDROLYSIS CATALYZED 
REMARK   1  TITL 2 BY THE ASPARTIC PROTEINASE PENICILLOPEPSIN                   
REMARK   1  REF    BIOCHEMISTRY                  V.  24  3701 1985              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.R.SIELECKI,T.HOFMANN                           
REMARK   1  TITL   X-RAY DIFFRACTION STUDIES ON PENICILLOPEPSIN AND ITS         
REMARK   1  TITL 2 COMPLEXES: THE HYDROLYTIC MECHANISM                          
REMARK   1  EDIT   V.KOSTKA                                                     
REMARK   1  REF    ASPARTIC PROTEINASES AND               163 1985              
REMARK   1  REF  2 THEIR INHIBITORS                                             
REMARK   1  PUBL   WALTER DE GRUYTER & CO.,BERLIN AND NEW YORK                  
REMARK   1  REFN                                                                
REMARK   1 REFERENCE 5                                                          
REMARK   1  AUTH   T.HOFMANN,R.S.HODGES,M.N.G.JAMES                             
REMARK   1  TITL   EFFECT OF PH ON THE ACTIVITIES OF PENICILLOPEPSIN AND        
REMARK   1  TITL 2 RHIZOPUS PEPSIN AND A PROPOSAL FOR THE PRODUCTIVE SUBSTRATE  
REMARK   1  TITL 3 BINDING MODE IN PENICILLOPEPSIN                              
REMARK   1  REF    BIOCHEMISTRY                  V.  23   635 1984              
REMARK   1  REFN                   ISSN 0006-2960                               
REMARK   1 REFERENCE 6                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.R.SIELECKI                                     
REMARK   1  TITL   STRUCTURE AND REFINEMENT OF PENICILLOPEPSIN AT 1.8 ANGSTROMS 
REMARK   1  TITL 2 RESOLUTION                                                   
REMARK   1  REF    J.MOL.BIOL.                   V. 163   299 1983              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 7                                                          
REMARK   1  AUTH   M.N.G.JAMES,A.SIELECKI,F.SALITURO,D.H.RICH,T.HOFMANN         
REMARK   1  TITL   CONFORMATIONAL FLEXIBILITY IN THE ACTIVE SITES OF ASPARTYL   
REMARK   1  TITL 2 PROTEINASES REVEALED BY A PEPSTATIN FRAGMENT BINDING TO      
REMARK   1  TITL 3 PENICILLOPEPSIN                                              
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V.  79  6137 1982              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.80 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
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)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 22494                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.135                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2401                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 11                                      
REMARK   3   SOLVENT ATOMS            : 247                                     
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  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.015 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; 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  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1APT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000171108.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
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) : NULL                               
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) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 38.12                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.99                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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       48.78500            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       23.23500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       48.78500            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       23.23500            
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 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: 1600 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 12230 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 1.0 KCAL/MOL                          
REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, I                                  
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 E 411  LIES ON A SPECIAL POSITION.                          
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP E 142   CB  -  CG  -  OD1 ANGL. DEV. =   7.0 DEGREES          
REMARK 500    TYR E 165   CB  -  CG  -  CD2 ANGL. DEV. =  -3.7 DEGREES          
REMARK 500    TYR E 198   CB  -  CG  -  CD1 ANGL. DEV. =  -3.8 DEGREES          
REMARK 500    ASP E 206   CB  -  CG  -  OD1 ANGL. DEV. =   7.2 DEGREES          
REMARK 500    ASP E 222   CB  -  CG  -  OD2 ANGL. DEV. =  -8.9 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    PHE E 208     -176.42   -171.45                                   
REMARK 500    ASP E 279       33.54   -146.78                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 LTA IS AN O-ETHYL ANALOGUE OF STATINE IN WHICH THE                   
REMARK 600 LEUCINE-LIKE SIDE CHAIN OF STATINE HAS BEEN REPLACED BY THE          
REMARK 600 LYSINE-LIKE SIDE CHAIN.                                              
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1APU   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1APV   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1APW   RELATED DB: PDB                                   
DBREF  1APT E    1   323  UNP    P00798   PENP_PENJA       1    323             
DBREF  1APT I    4     1  PDB    1APT     1APT             4      1             
SEQRES   1 E  323  ALA ALA SER GLY VAL ALA THR ASN THR PRO THR ALA ASN          
SEQRES   2 E  323  ASP GLU GLU TYR ILE THR PRO VAL THR ILE GLY GLY THR          
SEQRES   3 E  323  THR LEU ASN LEU ASN PHE ASP THR GLY SER ALA ASP LEU          
SEQRES   4 E  323  TRP VAL PHE SER THR GLU LEU PRO ALA SER GLN GLN SER          
SEQRES   5 E  323  GLY HIS SER VAL TYR ASN PRO SER ALA THR GLY LYS GLU          
SEQRES   6 E  323  LEU SER GLY TYR THR TRP SER ILE SER TYR GLY ASP GLY          
SEQRES   7 E  323  SER SER ALA SER GLY ASN VAL PHE THR ASP SER VAL THR          
SEQRES   8 E  323  VAL GLY GLY VAL THR ALA HIS GLY GLN ALA VAL GLN ALA          
SEQRES   9 E  323  ALA GLN GLN ILE SER ALA GLN PHE GLN GLN ASP THR ASN          
SEQRES  10 E  323  ASN ASP GLY LEU LEU GLY LEU ALA PHE SER SER ILE ASN          
SEQRES  11 E  323  THR VAL GLN PRO GLN SER GLN THR THR PHE PHE ASP THR          
SEQRES  12 E  323  VAL LYS SER SER LEU ALA GLN PRO LEU PHE ALA VAL ALA          
SEQRES  13 E  323  LEU LYS HIS GLN GLN PRO GLY VAL TYR ASP PHE GLY PHE          
SEQRES  14 E  323  ILE ASP SER SER LYS TYR THR GLY SER LEU THR TYR THR          
SEQRES  15 E  323  GLY VAL ASP ASN SER GLN GLY PHE TRP SER PHE ASN VAL          
SEQRES  16 E  323  ASP SER TYR THR ALA GLY SER GLN SER GLY ASP GLY PHE          
SEQRES  17 E  323  SER GLY ILE ALA ASP THR GLY THR THR LEU LEU LEU LEU          
SEQRES  18 E  323  ASP ASP SER VAL VAL SER GLN TYR TYR SER GLN VAL SER          
SEQRES  19 E  323  GLY ALA GLN GLN ASP SER ASN ALA GLY GLY TYR VAL PHE          
SEQRES  20 E  323  ASP CYS SER THR ASN LEU PRO ASP PHE SER VAL SER ILE          
SEQRES  21 E  323  SER GLY TYR THR ALA THR VAL PRO GLY SER LEU ILE ASN          
SEQRES  22 E  323  TYR GLY PRO SER GLY ASP GLY SER THR CYS LEU GLY GLY          
SEQRES  23 E  323  ILE GLN SER ASN SER GLY ILE GLY PHE SER ILE PHE GLY          
SEQRES  24 E  323  ASP ILE PHE LEU LYS SER GLN TYR VAL VAL PHE ASP SER          
SEQRES  25 E  323  ASP GLY PRO GLN LEU GLY PHE ALA PRO GLN ALA                  
SEQRES   1 I    4  IVA VAL VAL LTA                                              
MODRES 1APT SER E    3  SER  GLYCOSYLATION SITE                                 
HET    IVA  I   4       6                                                       
HET    LTA  I   1      15                                                       
HET    MAN  E 334      11                                                       
HETNAM     IVA ISOVALERIC ACID                                                  
HETNAM     LTA 4,8-DIAMINO-3-HYDROXY-OCTANOIC ACID ETHYL ESTER                  
HETNAM     MAN ALPHA-D-MANNOPYRANOSE                                            
HETSYN     LTA STATINE ANALOGUE                                                 
FORMUL   2  IVA    C5 H10 O2                                                    
FORMUL   2  LTA    C10 H22 N2 O3                                                
FORMUL   3  MAN    C6 H12 O6                                                    
FORMUL   4  HOH   *247(H2 O)                                                    
HELIX    1   1 ALA E   12  GLU E   15  5                                   4    
HELIX    2   2 PRO E   47  SER E   52  1                                   6    
HELIX    3   3 ASN E   58  GLY E   63  1                                   6    
HELIX    4   4 SER E  109  ASP E  115  1                                   7    
HELIX    5   5 PHE E  126  ASN E  130  5                                   5    
HELIX    6   6 THR E  139  LYS E  145  1                                   7    
HELIX    7   7 ASP E  171  LYS E  174  5                                   4    
HELIX    8   8 ASP E  222  SER E  231  1                                  10    
HELIX    9   9 PRO E  268  ILE E  272  1                                   5    
HELIX   10  10 GLY E  299  LYS E  304  1                                   6    
SHEET    1   A 7 TYR E 263  VAL E 267  0                                        
SHEET    2   A 7 PHE E 256  ILE E 260 -1  O  PHE E 256   N  VAL E 267           
SHEET    3   A 7 SER E 192  ALA E 200 -1  N  ASP E 196   O  SER E 259           
SHEET    4   A 7 GLN E 203  ALA E 212 -1  O  GLN E 203   N  ALA E 200           
SHEET    5   A 7 SER E 296  PHE E 298  1  N  SER E 296   O  SER E 209           
SHEET    6   A 7 LEU E 219  LEU E 221 -1  N  LEU E 220   O  ILE E 297           
SHEET    7   A 7 ILE E 287  SER E 289  1  N  GLN E 288   O  LEU E 219           
SHEET    1   B 4 GLN E 237  ASP E 239  0                                        
SHEET    2   B 4 GLY E 244  PHE E 247 -1  O  GLY E 244   N  ASP E 239           
SHEET    3   B 4 CYS E 283  GLY E 285 -1  N  CYS E 283   O  PHE E 247           
SHEET    4   B 4 ASN E 273  PRO E 276 -1  N  TYR E 274   O  LEU E 284           
SSBOND   1 CYS E  249    CYS E  283                          1555   1555  2.07  
LINK         OG  SER E   3                 C1  MAN E 334     1555   1555  1.42  
LINK         N   LTA I   1                 C   VAL I   2     1555   1555  1.33  
LINK         N   VAL I   3                 C   IVA I   4     1555   1555  1.30  
CISPEP   1 GLN E  133    PRO E  134          0         2.36                     
CISPEP   2 GLY E  314    PRO E  315          0        -2.87                     
CRYST1   97.570   46.470   66.390  90.00 116.15  90.00 C 1 2 1       4          
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      0.010249  0.000000  0.005032        0.00000                         
SCALE2      0.000000  0.021519  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016780        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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