HEADER    HYDROLASE INHIBITOR                     19-AUG-00   1FN0              
TITLE     STRUCTURE OF A MUTANT WINGED BEAN CHYMOTRYPSIN INHIBITOR PROTEIN,     
TITLE    2 N14D.                                                                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHYMOTRYPSIN INHIBITOR 3;                                  
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: WCI-3;                                                      
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PSOPHOCARPUS TETRAGONOLOBUS;                    
SOURCE   3 ORGANISM_COMMON: WINGED BEAN;                                        
SOURCE   4 ORGANISM_TAXID: 3891;                                                
SOURCE   5 ORGAN: SEED;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PTRC99A                                   
KEYWDS    BETA TREFOIL, HYDROLASE INHIBITOR                                     
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.K.DATTAGUPTA,C.CHAKRABARTI,S.RAVICHANDRAN,J.DASGUPTA,S.GHOSH        
REVDAT   7   30-OCT-24 1FN0    1       REMARK                                   
REVDAT   6   03-NOV-21 1FN0    1       REMARK SEQADV                            
REVDAT   5   13-JUL-11 1FN0    1       VERSN                                    
REVDAT   4   24-FEB-09 1FN0    1       VERSN                                    
REVDAT   3   01-APR-03 1FN0    1       JRNL                                     
REVDAT   2   18-JUL-01 1FN0    1       JRNL                                     
REVDAT   1   19-FEB-01 1FN0    0                                                
JRNL        AUTH   S.RAVICHANDRAN,J.DASGUPTA,C.CHAKRABARTI,S.GHOSH,M.SINGH,     
JRNL        AUTH 2 J.K.DATTAGUPTA                                               
JRNL        TITL   THE ROLE OF ASN14 IN THE STABILITY AND CONFORMATION OF THE   
JRNL        TITL 2 REACTIVE-SITE LOOP OF WINGED BEAN CHYMOTRYPSIN INHIBITOR:    
JRNL        TITL 3 CRYSTAL STRUCTURES OF TWO POINT MUTANTS ASN14-->LYS AND      
JRNL        TITL 4 ASN14-->ASP.                                                 
JRNL        REF    PROTEIN ENG.                  V.  14   349 2001              
JRNL        REFN                   ISSN 0269-2139                               
JRNL        PMID   11438758                                                     
JRNL        DOI    10.1093/PROTEIN/14.5.349                                     
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   S.RAVICHANDRAN,U.SEN,C.CHAKRABARTI,J.K.DATTAGUPTA            
REMARK   1  TITL   CRYSTALLOGRAPHY OF A KUNITZ-TYPE SERINE PROTEASE INHIBITOR:  
REMARK   1  TITL 2 THE 90K STRUCTURE OF WINGED BEAN CHYMOTRYPSIN INHIBITOR      
REMARK   1  TITL 3 (WCI) AT 2.13A RESOLUTION.                                   
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  55  1814 1999              
REMARK   1  REFN                   ISSN 0907-4449                               
REMARK   1  DOI    10.1107/S0907444999009877                                    
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   J.K.DATTAGUPTA,A.PODDER,C.CHAKRABARTI,U.SEN,D.MUKHOPADHYAY,  
REMARK   1  AUTH 2 S.K.DUTTA,M.SINGH                                            
REMARK   1  TITL   REFINED CRYSTAL STRUCTURE (2.3A) OF A DOUBLE-HEADED WINGED   
REMARK   1  TITL 2 BEAN ALPHA-CHYMOTRYPSIN INHIBITOR AND LOCATION OF ITS SECOND 
REMARK   1  TITL 3 REACTIVE SITE                                                
REMARK   1  REF    PROTEINS                      V.  35   321 1999              
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   1  DOI    10.1002/(SICI)1097-0134(19990515)35:3<321::AID-PROT6>3.3.CO; 
REMARK   1  DOI  2 2-P                                                          
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   J.K.DATTAGUPTA,C.CHAKRABARTI,S.RAVICHANDRAN,J.DASGUPTA,      
REMARK   1  AUTH 2 S.GHOSH                                                      
REMARK   1  TITL   CDNA CLONING, EXPRESSION AND RAPID PURIFICATION OF           
REMARK   1  TITL 2 KUNITZ-TYPE WINGED BEAN CHYMOTRYPSIN INHIBITOR               
REMARK   1  REF    PROTEIN EXPR.PURIF.           V.  10   100 1997              
REMARK   1  REFN                   ISSN 1046-5928                               
REMARK   1  DOI    10.1006/PREP.1996.0707                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 10.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 76.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 11351                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.217                           
REMARK   3   R VALUE            (WORKING SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.287                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1249                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1384                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 20                                      
REMARK   3   SOLVENT ATOMS            : 169                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 31.40                          
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 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: NULL                                      
REMARK   4                                                                      
REMARK   4 1FN0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-SEP-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011727.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-AUG-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 5.4                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.934                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14503                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 18.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 3.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 75.7                               
REMARK 200  DATA REDUNDANCY                : 2.000                              
REMARK 200  R MERGE                    (I) : 0.08700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 3.5000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.00                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 75.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.42300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.41                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.76                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, SODIUM ACETATE, PH     
REMARK 280  5.4, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277.0K              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+5/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/6                                            
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       70.28667            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      140.57333            
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      105.43000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000      175.71667            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       35.14333            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       70.28667            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000      140.57333            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000      175.71667            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000      105.43000            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       35.14333            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A MONOMER                         
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2680 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18500 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -141.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.500000  0.866025  0.000000       30.62000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000      -53.03540            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       35.14333            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 2310 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18490 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -99.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000     -106.07079            
REMARK 350   BIOMT3   2  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 S    SO4 A 900  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 501  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     1                                                      
REMARK 465     GLU A     2                                                      
REMARK 465     PHE A     3                                                      
REMARK 465     GLU A   181                                                      
REMARK 465     THR A   182                                                      
REMARK 465     ALA A   183                                                      
REMARK 465     SER A   184                                                      
REMARK 465     SER A   185                                                      
REMARK 465     HIS A   186                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500    VAL A 174   CB    VAL A 174   CG1     0.131                       
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    ASP A  17   CB  -  CG  -  OD2 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ASP A  98   CB  -  CG  -  OD2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ASP A 116   CB  -  CG  -  OD2 ANGL. DEV. =   7.7 DEGREES          
REMARK 500    ASP A 144   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 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    LEU A  68       33.82    -88.27                                   
REMARK 500    GLU A 142       -2.86     63.03                                   
REMARK 500    GLU A 143      -44.13   -169.69                                   
REMARK 500    ASP A 144     -126.90   -106.52                                   
REMARK 500    VAL A 145      143.70   -171.27                                   
REMARK 500    ARG A 157       -2.06    -56.12                                   
REMARK 500    GLU A 168      -85.99    -93.85                                   
REMARK 500    LYS A 179      152.22    -43.95                                   
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 SO4 A 900                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 902                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 904                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 905                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1FMZ   RELATED DB: PDB                                   
REMARK 900 1FMZ CONTAINS THE SAME PROTEIN.                                      
REMARK 900 RELATED ID: 1EYL   RELATED DB: PDB                                   
REMARK 900 1EYL IS THE SAME PROTEIN IN RECOMBINANT FORM                         
REMARK 900 RELATED ID: 4WBC   RELATED DB: PDB                                   
REMARK 900 4WBC IS THE CRYSTAL STRUCTURE OF THE SAME PROTEIN (NATIVE) AT 2.13A  
REMARK 900 RESOLUTION                                                           
REMARK 900 RELATED ID: 2WBC   RELATED DB: PDB                                   
REMARK 900 2WBC IS THE CRYSTAL STRUCTURE OF THE SAME PROTEIN (NATIVE) AT 2.3A   
REMARK 900 RESOLUTION                                                           
REMARK 900 RELATED ID: 1WBC   RELATED DB: PDB                                   
REMARK 900 1WBC IS THE CRYSTAL STRUCTURE OF THE SAME PROTEIN (NATIVE) AT 2.95A  
REMARK 900 RESOLUTION                                                           
DBREF  1FN0 A    4   186  UNP    P10822   ICW3_PSOTE      25    207             
SEQADV 1FN0 MET A    1  UNP  P10822              CLONING ARTIFACT               
SEQADV 1FN0 GLU A    2  UNP  P10822              CLONING ARTIFACT               
SEQADV 1FN0 PHE A    3  UNP  P10822              CLONING ARTIFACT               
SEQADV 1FN0 ASP A   17  UNP  P10822    ASN    38 ENGINEERED MUTATION            
SEQRES   1 A  186  MET GLU PHE ASP ASP ASP LEU VAL ASP ALA GLU GLY ASN          
SEQRES   2 A  186  LEU VAL GLU ASP GLY GLY THR TYR TYR LEU LEU PRO HIS          
SEQRES   3 A  186  ILE TRP ALA HIS GLY GLY GLY ILE GLU THR ALA LYS THR          
SEQRES   4 A  186  GLY ASN GLU PRO CYS PRO LEU THR VAL VAL ARG SER PRO          
SEQRES   5 A  186  ASN GLU VAL SER LYS GLY GLU PRO ILE ARG ILE SER SER          
SEQRES   6 A  186  GLN PHE LEU SER LEU PHE ILE PRO ARG GLY SER LEU VAL          
SEQRES   7 A  186  ALA LEU GLY PHE ALA ASN PRO PRO SER CYS ALA ALA SER          
SEQRES   8 A  186  PRO TRP TRP THR VAL VAL ASP SER PRO GLN GLY PRO ALA          
SEQRES   9 A  186  VAL LYS LEU SER GLN GLN LYS LEU PRO GLU LYS ASP ILE          
SEQRES  10 A  186  LEU VAL PHE LYS PHE GLU LYS VAL SER HIS SER ASN ILE          
SEQRES  11 A  186  HIS VAL TYR LYS LEU LEU TYR CYS GLN HIS ASP GLU GLU          
SEQRES  12 A  186  ASP VAL LYS CYS ASP GLN TYR ILE GLY ILE HIS ARG ASP          
SEQRES  13 A  186  ARG ASN GLY ASN ARG ARG LEU VAL VAL THR GLU GLU ASN          
SEQRES  14 A  186  PRO LEU GLU LEU VAL LEU LEU LYS ALA LYS SER GLU THR          
SEQRES  15 A  186  ALA SER SER HIS                                              
HET    SO4  A 900       5                                                       
HET    SO4  A 902       5                                                       
HET    SO4  A 904       5                                                       
HET    SO4  A 905      10                                                       
HETNAM     SO4 SULFATE ION                                                      
FORMUL   2  SO4    4(O4 S 2-)                                                   
FORMUL   6  HOH   *169(H2 O)                                                    
HELIX    1   1 ILE A   27  GLY A   31  5                                   5    
HELIX    2   2 PRO A  113  LEU A  118  1                                   6    
SHEET    1   A11 ILE A  34  ALA A  37  0                                        
SHEET    2   A11 THR A  47  ARG A  50 -1  N  THR A  47   O  ALA A  37           
SHEET    3   A11 ARG A 161  THR A 166 -1  O  ARG A 161   N  ARG A  50           
SHEET    4   A11 ASP A 144  ARG A 155 -1  O  TYR A 150   N  THR A 166           
SHEET    5   A11 TYR A 133  ASP A 141 -1  O  LEU A 135   N  ILE A 151           
SHEET    6   A11 PHE A 120  LYS A 124 -1  O  LYS A 121   N  LEU A 136           
SHEET    7   A11 VAL A  78  PHE A  82 -1  N  VAL A  78   O  PHE A 120           
SHEET    8   A11 ILE A  61  SER A  65 -1  N  ARG A  62   O  GLY A  81           
SHEET    9   A11 THR A  20  PRO A  25 -1  N  TYR A  21   O  ILE A  61           
SHEET   10   A11 GLU A 172  LYS A 177 -1  O  VAL A 174   N  LEU A  24           
SHEET   11   A11 TYR A 133  ASP A 141 -1  O  TYR A 133   N  LEU A 173           
SHEET    1   B 2 THR A  95  VAL A  97  0                                        
SHEET    2   B 2 ALA A 104  LYS A 106 -1  O  ALA A 104   N  VAL A  97           
SSBOND   1 CYS A   44    CYS A   88                          1555   1555  2.00  
SSBOND   2 CYS A  138    CYS A  147                          1555   1555  2.05  
SITE     1 AC1  2 HIS A  26  ASN A 129                                          
SITE     1 AC2  8 PRO A  25  HIS A  26  ILE A  27  HIS A  30                    
SITE     2 AC2  8 ARG A  50  HIS A 127  GLU A 172  HOH A 331                    
SITE     1 AC3  5 SER A  69  LEU A  70  TRP A  93  LYS A 111                    
SITE     2 AC3  5 HOH A 246                                                     
SITE     1 AC4  4 HIS A  30  SER A 126  HIS A 127  HOH A 268                    
CRYST1   61.240   61.240  210.860  90.00  90.00 120.00 P 61 2 2     12          
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      0.016330  0.009430  0.000000        0.00000                         
SCALE2      0.000000  0.018860  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.004740        0.00000