PDB Short entry for 4ER4
HEADER    HYDROLASE/HYDROLASE INHIBITOR           05-JAN-91   4ER4              
TITLE     HIGH-RESOLUTION X-RAY ANALYSES OF RENIN INHIBITOR-ASPARTIC PROTEINASE 
TITLE    2 COMPLEXES                                                            
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ENDOTHIAPEPSIN;                                            
COMPND   3 CHAIN: E;                                                            
COMPND   4 EC: 3.4.23.6;                                                        
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: H-142;                                                     
COMPND   8 CHAIN: I;                                                            
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: CRYPHONECTRIA PARASITICA;                       
SOURCE   3 ORGANISM_TAXID: 5116;                                                
SOURCE   4 MOL_ID: 2;                                                           
SOURCE   5 SYNTHETIC: YES                                                       
KEYWDS    HYDROLASE, ACID PROTEINASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.I.FOUNDLING,F.E.WATSON,M.SZELKE,T.L.BLUNDELL                        
REVDAT  10   15-NOV-23 4ER4    1       LINK   ATOM                              
REVDAT   9   29-NOV-17 4ER4    1       HELIX                                    
REVDAT   8   29-FEB-12 4ER4    1       JRNL                                     
REVDAT   7   13-JUL-11 4ER4    1       VERSN                                    
REVDAT   6   24-FEB-09 4ER4    1       VERSN                                    
REVDAT   5   01-APR-03 4ER4    1       JRNL                                     
REVDAT   4   15-JAN-95 4ER4    1       JRNL                                     
REVDAT   3   15-APR-92 4ER4    1       JRNL                                     
REVDAT   2   15-OCT-91 4ER4    1       JRNL                                     
REVDAT   1   15-APR-91 4ER4    0                                                
JRNL        AUTH   S.I.FOUNDLING,J.COOPER,F.E.WATSON,A.CLEASBY,L.H.PEARL,       
JRNL        AUTH 2 B.L.SIBANDA,A.HEMMINGS,S.P.WOOD,T.L.BLUNDELL,M.J.VALLER,     
JRNL        AUTH 3 C.G.NOREY,J.KAY,J.BOGER,B.M.DUNN,B.J.LECKIEPARALLEL,         
JRNL        AUTH 4 D.M.JONE,B.ATRASH,A.HALLETT,M.SZELKE                         
JRNL        TITL   HIGH RESOLUTION X-RAY ANALYSES OF RENIN INHIBITOR-ASPARTIC   
JRNL        TITL 2 PROTEINASE COMPLEXES.                                        
JRNL        REF    NATURE                        V. 327   349 1987              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   3295561                                                      
JRNL        DOI    10.1038/327349A0                                             
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   L.PEARL,T.BLUNDELL                                           
REMARK   1  TITL   THE ACTIVE SITE OF ASPARTIC PROTEINASES                      
REMARK   1  REF    FEBS LETT.                    V. 174    96 1984              
REMARK   1  REFN                   ISSN 0014-5793                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   T.L.BLUNDELL,H.B.JONES,G.KHAN,G.TAYLOR,T.S.SEWELL,L.H.PEARL, 
REMARK   1  AUTH 2 S.P.WOOD                                                     
REMARK   1  TITL   ACTIVE SITE OF ACID PROTEINASES                              
REMARK   1  REF    PROC.FEBS MEET.               V.  60   281 1979              
REMARK   1  REFN                   ISSN 0071-4402                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   T.L.BLUNDELL,J.A.JENKINS,G.KHAN,P.ROYCHOWDHURY,T.SEWELL,     
REMARK   1  AUTH 2 I.J.TICKLE,E.A.WOOD                                          
REMARK   1  TITL   THE THREE-DIMENSIONAL STRUCTURE OF ACID PROTEINASES          
REMARK   1  REF    PROC.FEBS MEET.               V.  52    81 1979              
REMARK   1  REFN                   ISSN 0071-4402                               
REMARK   1 REFERENCE 4                                                          
REMARK   1  AUTH   T.L.BLUNDELL,B.T.SEWELL,A.D.MCLACHLAN                        
REMARK   1  TITL   FOUR-FOLD STRUCTURAL REPEAT IN THE ACID PROTEASES            
REMARK   1  REF    BIOCHIM.BIOPHYS.ACTA          V. 580    24 1979              
REMARK   1  REFN                   ISSN 0006-3002                               
REMARK   1 REFERENCE 5                                                          
REMARK   1  AUTH   J.TANG,M.N.G.JAMES,I.N.HSU,J.A.JENKINS,T.L.BLUNDELL          
REMARK   1  TITL   STRUCTURAL EVIDENCE FOR GENE DUPLICATION IN THE EVOLUTION OF 
REMARK   1  TITL 2 ACID PROTEASES                                               
REMARK   1  REF    NATURE                        V. 271   618 1978              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   1 REFERENCE 6                                                          
REMARK   1  AUTH   E.SUBRAMANIAN,I.D.A.SWAN,M.LIU,D.R.DAVIES,J.A.JENKINS,       
REMARK   1  AUTH 2 I.J.TICKLE,T.L.BLUNDELL                                      
REMARK   1  TITL   HOMOLOGY AMONG ACID PROTEASES. COMPARISON OF CRYSTAL         
REMARK   1  TITL 2 STRUCTURES AT 3 ANGSTROMS RESOLUTION OF ACID PROTEASES FROM  
REMARK   1  TITL 3 RHIZOPUS CHINENSIS AND ENDOTHIA PARASITICA                   
REMARK   1  REF    PROC.NATL.ACAD.SCI.USA        V.  74   556 1977              
REMARK   1  REFN                   ISSN 0027-8424                               
REMARK   1 REFERENCE 7                                                          
REMARK   1  AUTH   J.JENKINS,I.TICKLE,T.SEWELL,L.UNGARETTI,A.WOLLMER,T.BLUNDELL 
REMARK   1  TITL   X-RAY ANALYSIS AND CIRCULAR DICHROISM OF THE ACID PROTEASE   
REMARK   1  TITL 2 FROM ENDOTHIA PARASITICA AND CHYMOSIN                        
REMARK   1  EDIT   J.TANG                                                       
REMARK   1  REF    ADV.EXP.MED.BIOL.             V.  95    43 1977              
REMARK   1  PUBL   PLENUM,NEW YORK                                              
REMARK   1  REFN                   ISSN 0065-2598                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 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) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : NULL                           
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) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.194                           
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            : 2467                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 325                                     
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) : NULL  ; 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:                                           
REMARK   3  THE QUANTITY GIVEN IN THE TEMPERATURE FACTOR FIELD OF THE           
REMARK   3  *ATOM* AND *HETATM* RECORDS BELOW IS U**2, WHICH IS THE             
REMARK   3  MEAN-SQUARE AMPLITUDE OF ATOMIC VIBRATION.  THE TEMPERATURE         
REMARK   3  FACTOR, B, CAN BE DERIVED BY THE FOLLOWING RELATION -               
REMARK   3   B = 8 * (PI)**2 * U**2.  IT IS AN INDICATION OF POSSIBLE           
REMARK   3  ERRORS IN THE REFINEMENT THAT SOME ARE SLIGHTLY NEGATIVE.           
REMARK   4                                                                      
REMARK   4 4ER4 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_1000179309.                                   
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   (%): 49.46                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.43                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       37.00000            
REMARK 290   SMTRY3   2  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: 1680 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 13190 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -9.0 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 400                                                                      
REMARK 400 COMPOUND                                                             
REMARK 400 THE PEPTIDE BOND BETWEEN RESIDUE LEU I 6 AND RESIDUE VAL I 7 HAS     
REMARK 400 BEEN REDUCED TO CH2-NH2. IT IS REPRESENTED AS LAV IN THE SEQUENCE.   
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     LYS I   9    CA   C    O    CB   CG   CD   CE                    
REMARK 470     LYS I   9    NZ                                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH E   476     O    HOH E   479              1.64            
REMARK 500   O    HOH E   385     O    HOH E   478              1.79            
REMARK 500   O    HOH E   504     O    HOH E   505              1.85            
REMARK 500   O    HOH E   476     O    HOH E   517              1.86            
REMARK 500   O    HOH E   384     O    HOH E   537              1.90            
REMARK 500   O    HOH E   400     O    HOH E   496              2.02            
REMARK 500   O    HOH E   413     O    HOH E   491              2.05            
REMARK 500   O    HOH E   331     O    HOH E   419              2.07            
REMARK 500   O    HOH E   570     O    HOH E   571              2.07            
REMARK 500   O    HOH E   467     O    HOH E   510              2.10            
REMARK 500   O    HOH E   418     O    HOH E   488              2.12            
REMARK 500   O    HOH E   334     O    HOH E   526              2.15            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH E   362     O    HOH E   380     1655     1.60            
REMARK 500   O    HOH E   508     O    HOH E   546     2655     1.84            
REMARK 500   O    HOH E   356     O    HOH E   412     2655     1.89            
REMARK 500   O    GLN E    53     O    HOH E   628     2655     2.02            
REMARK 500   OG1  THR E   253     O    HOH E   576     1454     2.10            
REMARK 500   O    HOH E   474     O    HOH E   523     1556     2.11            
REMARK 500   O    HOH E   415     O    HOH E   508     2645     2.15            
REMARK 500   OG   SER E   251     O    HOH E   361     1454     2.16            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    LYS E  60   O   -  C   -  N   ANGL. DEV. = -14.1 DEGREES          
REMARK 500    ASP E  83   CB  -  CG  -  OD2 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    TYR E  85   CB  -  CG  -  CD1 ANGL. DEV. =  -3.9 DEGREES          
REMARK 500    VAL E  89   CA  -  CB  -  CG2 ANGL. DEV. =   9.4 DEGREES          
REMARK 500    VAL E  91   CA  -  CB  -  CG2 ANGL. DEV. =   9.6 DEGREES          
REMARK 500    VAL E  96   CA  -  CB  -  CG2 ANGL. DEV. =  14.0 DEGREES          
REMARK 500    VAL E 101   CA  -  CB  -  CG2 ANGL. DEV. =   9.3 DEGREES          
REMARK 500    SER E 108   N   -  CA  -  CB  ANGL. DEV. =  -9.2 DEGREES          
REMARK 500    GLU E 113   OE1 -  CD  -  OE2 ANGL. DEV. =  -8.7 DEGREES          
REMARK 500    ASP E 114   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    PHE E 138   CB  -  CA  -  C   ANGL. DEV. = -16.9 DEGREES          
REMARK 500    PHE E 169   CG  -  CD2 -  CE2 ANGL. DEV. =   8.2 DEGREES          
REMARK 500    TYR E 197   CB  -  CG  -  CD2 ANGL. DEV. =  -5.3 DEGREES          
REMARK 500    VAL E 199   CA  -  CB  -  CG2 ANGL. DEV. =  10.7 DEGREES          
REMARK 500    VAL E 235   CA  -  CB  -  CG2 ANGL. DEV. =   9.2 DEGREES          
REMARK 500    SER E 242   N   -  CA  -  CB  ANGL. DEV. =   9.1 DEGREES          
REMARK 500    VAL E 243   CA  -  CB  -  CG2 ANGL. DEV. =   9.3 DEGREES          
REMARK 500    VAL E 261   CA  -  CB  -  CG1 ANGL. DEV. =  15.0 DEGREES          
REMARK 500    ARG E 265   NE  -  CZ  -  NH2 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ILE E 287   O   -  C   -  N   ANGL. DEV. = -10.4 DEGREES          
REMARK 500    ILE E 297   CB  -  CA  -  C   ANGL. DEV. = -15.9 DEGREES          
REMARK 500    VAL E 312   CA  -  CB  -  CG2 ANGL. DEV. =   9.6 DEGREES          
REMARK 500    LAV I   6   CA  -  C   -  N   ANGL. DEV. =  33.5 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    SER E  42     -169.68   -123.90                                   
REMARK 500    ASP E  51      -70.27    -89.64                                   
REMARK 500    SER E  72      106.27   -166.89                                   
REMARK 500    ASP E  83     -168.46   -106.47                                   
REMARK 500    SER E 201       37.06    -82.54                                   
REMARK 500    SER E 242       -8.56   -158.80                                   
REMARK 500    HIS I   8      -78.26    -97.02                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 LAV I    6     ILE I    7                  -84.21                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    TYR E 175         0.10    SIDE CHAIN                              
REMARK 500    TYR E 181         0.09    SIDE CHAIN                              
REMARK 500    TYR E 197         0.07    SIDE CHAIN                              
REMARK 500    PHE E 257         0.08    SIDE CHAIN                              
REMARK 500    PHE E 259         0.12    SIDE CHAIN                              
REMARK 500    PHE E 284         0.09    SIDE CHAIN                              
REMARK 500    PHE E 311         0.12    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: MAIN CHAIN PLANARITY                                       
REMARK 500                                                                      
REMARK 500 THE FOLLOWING RESIDUES HAVE A PSEUDO PLANARITY                       
REMARK 500 TORSION ANGLE, C(I) - CA(I) - N(I+1) - O(I), GREATER                 
REMARK 500 10.0 DEGREES. (M=MODEL NUMBER; RES=RESIDUE NAME;                     
REMARK 500 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;                            
REMARK 500 I=INSERTION CODE).                                                   
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        ANGLE                                           
REMARK 500    LYS E  60        -23.31                                           
REMARK 500    PHE E 151         17.73                                           
REMARK 500    LAV I   6         58.51                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: CAT                                                 
REMARK 800 EVIDENCE_CODE: UNKNOWN                                               
REMARK 800 SITE_DESCRIPTION: NULL                                               
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR CHAIN I OF H-142                  
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE COMPLETE SEQUENCE WAS DETERMINED BY V. PEDERSEN AS               
REMARK 999 TRYPTIC FRAGMENTS WHICH WERE ALIGNED IN THE ELECTRON                 
REMARK 999 DENSITY.  HOMOLOGY WITH OTHER ASPARTIC PROTEINASES WAS USED          
REMARK 999 TO RESOLVE ALIGNMENT AMBIGUITIES.  THE RESIDUE NUMBERING IS          
REMARK 999 BASED ON THAT OF PORCINE PEPSIN.                                     
DBREF  4ER4 E   -2   326  UNP    P11838   CARP_CRYPA      90    419             
DBREF  4ER4 I    1     9  PDB    4ER4     4ER4             1      9             
SEQRES   1 E  330  SER THR GLY SER ALA THR THR THR PRO ILE ASP SER LEU          
SEQRES   2 E  330  ASP ASP ALA TYR ILE THR PRO VAL GLN ILE GLY THR PRO          
SEQRES   3 E  330  ALA GLN THR LEU ASN LEU ASP PHE ASP THR GLY SER SER          
SEQRES   4 E  330  ASP LEU TRP VAL PHE SER SER GLU THR THR ALA SER GLU          
SEQRES   5 E  330  VAL ASP GLY GLN THR ILE TYR THR PRO SER LYS SER THR          
SEQRES   6 E  330  THR ALA LYS LEU LEU SER GLY ALA THR TRP SER ILE SER          
SEQRES   7 E  330  TYR GLY ASP GLY SER SER SER SER GLY ASP VAL TYR THR          
SEQRES   8 E  330  ASP THR VAL SER VAL GLY GLY LEU THR VAL THR GLY GLN          
SEQRES   9 E  330  ALA VAL GLU SER ALA LYS LYS VAL SER SER SER PHE THR          
SEQRES  10 E  330  GLU ASP SER THR ILE ASP GLY LEU LEU GLY LEU ALA PHE          
SEQRES  11 E  330  SER THR LEU ASN THR VAL SER PRO THR GLN GLN LYS THR          
SEQRES  12 E  330  PHE PHE ASP ASN ALA LYS ALA SER LEU ASP SER PRO VAL          
SEQRES  13 E  330  PHE THR ALA ASP LEU GLY TYR HIS ALA PRO GLY THR TYR          
SEQRES  14 E  330  ASN PHE GLY PHE ILE ASP THR THR ALA TYR THR GLY SER          
SEQRES  15 E  330  ILE THR TYR THR ALA VAL SER THR LYS GLN GLY PHE TRP          
SEQRES  16 E  330  GLU TRP THR SER THR GLY TYR ALA VAL GLY SER GLY THR          
SEQRES  17 E  330  PHE LYS SER THR SER ILE ASP GLY ILE ALA ASP THR GLY          
SEQRES  18 E  330  THR THR LEU LEU TYR LEU PRO ALA THR VAL VAL SER ALA          
SEQRES  19 E  330  TYR TRP ALA GLN VAL SER GLY ALA LYS SER SER SER SER          
SEQRES  20 E  330  VAL GLY GLY TYR VAL PHE PRO CYS SER ALA THR LEU PRO          
SEQRES  21 E  330  SER PHE THR PHE GLY VAL GLY SER ALA ARG ILE VAL ILE          
SEQRES  22 E  330  PRO GLY ASP TYR ILE ASP PHE GLY PRO ILE SER THR GLY          
SEQRES  23 E  330  SER SER SER CYS PHE GLY GLY ILE GLN SER SER ALA GLY          
SEQRES  24 E  330  ILE GLY ILE ASN ILE PHE GLY ASP VAL ALA LEU LYS ALA          
SEQRES  25 E  330  ALA PHE VAL VAL PHE ASN GLY ALA THR THR PRO THR LEU          
SEQRES  26 E  330  GLY PHE ALA SER LYS                                          
SEQRES   1 I    9  PRO HIS PRO PHE HIS LAV ILE HIS LYS                          
HET    LAV  I   6      14                                                       
HETNAM     LAV N-[(2S)-2-AMINO-4-METHYLPENTYL]-L-VALINE                         
FORMUL   2  LAV    C11 H24 N2 O2                                                
FORMUL   3  HOH   *325(H2 O)                                                    
HELIX    1  H1 THR E   57  SER E   61  1                                   5    
HELIX    2  H2 SER E  108  GLU E  113  1                                   6    
HELIX    3  H3 THR E  137  LYS E  143  1                                   7    
HELIX    4  H4 PRO E  224  GLN E  234  1                                  11    
HELIX    5  H5 GLY E  303  LYS E  308  1                                   6    
SHEET    1  N1 8 THR E  -1  ILE E   7  0                                        
SHEET    2  N1 8 ALA E  13  GLY E  21 -1  N  ILE E  15   O  THR E   5           
SHEET    3  N1 8 ALA E  24  THR E  33 -1  N  LEU E  29   O  THR E  16           
SHEET    4  N1 8 ILE E 117  ALA E 124  1  N  LEU E 121   O  ASP E  30           
SHEET    5  N1 8 SER E  36  GLU E  44 -1  N  TRP E  39   O  LEU E 120           
SHEET    6  N1 8 GLN E  99  LYS E 105  1  N  ALA E 104   O  VAL E  40           
SHEET    7  N1 8 GLY E  78  ASP E  87 -1  N  ASP E  83   O  SER E 103           
SHEET    8  N1 8 TRP E  71  GLY E  76 -1  N  TRP E  71   O  GLY E  82           
SHEET    1  C1 8 SER E 178  LYS E 186  0                                        
SHEET    2  C1 8 PHE E 189  THR E 195 -1  N  GLU E 191   O  SER E 184A          
SHEET    3  C1 8 ASP E 211  THR E 216 -1  N  GLY E 212   O  TRP E 192           
SHEET    4  C1 8 ILE E 299  PHE E 302  1  N  PHE E 302   O  ILE E 213           
SHEET    5  C1 8 THR E 219  PRO E 224 -1  N  TYR E 222   O  ILE E 301           
SHEET    6  C1 8 SER E 282  SER E 294  1  N  GLN E 288   O  LEU E 221           
SHEET    7  C1 8 GLY E 244  CYS E 250 -1  N  PHE E 248   O  CYS E 283           
SHEET    8  C1 8 ALA E 238  SER E 241 -1  N  LYS E 238A  O  VAL E 247           
SHEET    1  N2 4 ALA E  24  ASN E  28  0                                        
SHEET    2  N2 4 PRO E  17  GLY E  21 -1  N  ILE E  20   O  GLN E  25           
SHEET    3  N2 4 VAL E  89  VAL E  91 -1  N  SER E  90   O  GLN E  19           
SHEET    4  N2 4 LEU E  94  VAL E  96 -1  N  VAL E  96   O  VAL E  89           
SHEET    1  C2 4 GLY E 202  LYS E 204  0                                        
SHEET    2  C2 4 GLY E 196  VAL E 199 -1  N  TYR E 197   O  LYS E 204           
SHEET    3  C2 4 SER E 256  VAL E 261 -1  N  GLY E 260   O  GLY E 196           
SHEET    4  C2 4 ALA E 264  ILE E 268 -1  N  ILE E 266   O  PHE E 259           
SHEET    1  NC 6 THR E  -1  ILE E   7  0                                        
SHEET    2  NC 6 PRO E 162  THR E 172 -1  N  TYR E 165   O  ALA E   2           
SHEET    3  NC 6 SER E 148  TYR E 157 -1  N  ASP E 154   O  THR E 164           
SHEET    4  NC 6 ALA E 310  GLY E 316 -1  N  VAL E 312   O  ALA E 153           
SHEET    5  NC 6 THR E 319  LYS E 326 -1  N  GLY E 322   O  VAL E 313           
SHEET    6  NC 6 SER E 178  LYS E 186 -1  N  THR E 182   O  LEU E 321           
SSBOND   1 CYS E  250    CYS E  283                          1555   1555  2.05  
LINK         C   HIS I   5                 N   LAV I   6     1555   1555  1.34  
LINK         C   LAV I   6                 N   ILE I   7     1555   1555  1.31  
CISPEP   1 THR E   22    PRO E   23          0       -14.40                     
CISPEP   2 SER E  132    PRO E  133          0         2.37                     
SITE     1 CAT  2 ASP E  32  ASP E 215                                          
SITE     1 AC1 24 LEU E  10  ASP E  12  ALA E  13  ASP E  30                    
SITE     2 AC1 24 ASP E  32  GLY E  34  SER E  74  TYR E  75                    
SITE     3 AC1 24 GLY E  76  ASP E  77  GLU E 113  ASP E 114                    
SITE     4 AC1 24 LEU E 120  LEU E 128  PHE E 189  ILE E 213                    
SITE     5 AC1 24 ASP E 215  GLY E 217  THR E 218  THR E 219                    
SITE     6 AC1 24 PHE E 275  PRO E 277  PHE E 284  HOH I 344                    
CRYST1   53.700   74.000   45.500  90.00 109.30  90.00 P 1 21 1      2          
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      0.018622  0.000000  0.006521        0.00000                         
SCALE2      0.000000  0.013514  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.023287        0.00000