HEADER    ISOMERASE                               12-FEB-14   4ORR              
TITLE     THREEDIMENSIONAL STRUCTURE OF THE C65A MUTANT OF HUMAN LIPOCALIN-TYPE 
TITLE    2 PROSTAGLANDIN D SYNTHASE OLO-FORM                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROSTAGLANDIN-H2 D-ISOMERASE;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: BETA-TRACE PROTEIN, CEREBRIN-28, GLUTATHIONE-INDEPENDENT PGD
COMPND   5 SYNTHASE, LIPOCALIN-TYPE PROSTAGLANDIN-D SYNTHASE, PROSTAGLANDIN-D2  
COMPND   6 SYNTHASE, PGD2 SYNTHASE, PGDS, PGDS2;                                
COMPND   7 EC: 5.3.99.2;                                                        
COMPND   8 ENGINEERED: YES;                                                     
COMPND   9 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: PTGDS, PDS;                                                    
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    LIPOCALIN-TYPE PROSTAGLANDIN-D SYNTHASE, PEG, ISOMERASE               
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.PERDUCA,M.BOVI,M.BERTINELLI,E.BERTINI,L.DESTEFANIS,M.E.CARRIZO,     
AUTHOR   2 S.CAPALDI,H.L.MONACO                                                 
REVDAT   4   16-OCT-24 4ORR    1       REMARK                                   
REVDAT   3   20-SEP-23 4ORR    1       REMARK SEQADV LINK                       
REVDAT   2   13-AUG-14 4ORR    1       JRNL                                     
REVDAT   1   06-AUG-14 4ORR    0                                                
JRNL        AUTH   M.PERDUCA,M.BOVI,M.BERTINELLI,E.BERTINI,L.DESTEFANIS,        
JRNL        AUTH 2 M.E.CARRIZO,S.CAPALDI,H.L.MONACO                             
JRNL        TITL   HIGH-RESOLUTION STRUCTURES OF MUTANTS OF RESIDUES THAT       
JRNL        TITL 2 AFFECT ACCESS TO THE LIGAND-BINDING CAVITY OF HUMAN          
JRNL        TITL 3 LIPOCALIN-TYPE PROSTAGLANDIN D SYNTHASE.                     
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  70  2125 2014              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   25084332                                                     
JRNL        DOI    10.1107/S1399004714012462                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.8.2_1309)                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 28.77                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.380                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 37439                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.215                           
REMARK   3   R VALUE            (WORKING SET) : 0.214                           
REMARK   3   FREE R VALUE                     : 0.233                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1972                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 28.7771 -  4.1432    0.95     2533   140  0.2165 0.2258        
REMARK   3     2  4.1432 -  3.2901    1.00     2664   133  0.1985 0.2101        
REMARK   3     3  3.2901 -  2.8747    1.00     2649   138  0.2189 0.2575        
REMARK   3     4  2.8747 -  2.6120    1.00     2674   147  0.2148 0.2189        
REMARK   3     5  2.6120 -  2.4249    1.00     2649   139  0.2270 0.2456        
REMARK   3     6  2.4249 -  2.2820    1.00     2657   134  0.2123 0.2301        
REMARK   3     7  2.2820 -  2.1677    1.00     2635   168  0.2034 0.2408        
REMARK   3     8  2.1677 -  2.0734    1.00     2666   144  0.2073 0.2497        
REMARK   3     9  2.0734 -  1.9936    1.00     2666   140  0.2061 0.1886        
REMARK   3    10  1.9936 -  1.9248    1.00     2670   129  0.2026 0.2576        
REMARK   3    11  1.9248 -  1.8647    1.00     2644   147  0.2088 0.2043        
REMARK   3    12  1.8647 -  1.8114    1.00     2647   150  0.2074 0.2396        
REMARK   3    13  1.8114 -  1.7637    1.00     2666   147  0.2159 0.2173        
REMARK   3    14  1.7637 -  1.7207    1.00     2678   119  0.2175 0.2555        
REMARK   3    15  1.7207 -  1.6816    1.00     2616   168  0.2248 0.2331        
REMARK   3    16  1.6816 -  1.6458    1.00     2645   140  0.2260 0.2645        
REMARK   3    17  1.6458 -  1.6129    1.00     2658   149  0.2195 0.2488        
REMARK   3    18  1.6129 -  1.5824    1.00     2683   130  0.2191 0.2118        
REMARK   3    19  1.5824 -  1.5542    1.00     2626   151  0.2206 0.2191        
REMARK   3    20  1.5542 -  1.5278    1.00     2670   135  0.2284 0.2442        
REMARK   3    21  1.5278 -  1.5032    1.00     2685   122  0.2218 0.2611        
REMARK   3    22  1.5032 -  1.4800    1.00     2655   124  0.2321 0.2660        
REMARK   3    23  1.4800 -  1.4583    1.00     2697   121  0.2404 0.2262        
REMARK   3    24  1.4583 -  1.4377    1.00     2669   147  0.2451 0.2942        
REMARK   3    25  1.4377 -  1.4183    1.00     2671   121  0.2485 0.3067        
REMARK   3    26  1.4183 -  1.3999    0.99     2617   149  0.2422 0.2336        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.140            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.650           
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.004           1337                                  
REMARK   3   ANGLE     :  1.012           1792                                  
REMARK   3   CHIRALITY :  0.033            190                                  
REMARK   3   PLANARITY :  0.004            224                                  
REMARK   3   DIHEDRAL  : 14.167            508                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: (CHAIN A AND (RESID 28:188 OR RESID 401:402 OR RESID   
REMARK   3               501:602 ) )                                            
REMARK   3    ORIGIN FOR THE GROUP (A): -16.2770   5.3446  36.3974              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0912 T22:   0.1147                                     
REMARK   3      T33:   0.1029 T12:   0.0108                                     
REMARK   3      T13:   0.0185 T23:   0.0082                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.1190 L22:   0.7730                                     
REMARK   3      L33:   1.2784 L12:   0.1065                                     
REMARK   3      L13:  -0.4623 L23:   0.0006                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0570 S12:   0.1210 S13:  -0.0693                       
REMARK   3      S21:  -0.0300 S22:   0.0270 S23:   0.0386                       
REMARK   3      S31:   0.0634 S32:  -0.0343 S33:   0.0259                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4ORR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 13-FEB-14.                  
REMARK 100 THE DEPOSITION ID IS D_1000084868.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-NOV-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
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) : 0.98                               
REMARK 200  MONOCHROMATOR                  : CHANNEL CUT ESRF MONOCHROMATOR     
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315R                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 39501                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.8                               
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) : 1.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.48                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 12.80                              
REMARK 200  R MERGE FOR SHELL          (I) : 0.32100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 6.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: MOLREP                                                
REMARK 200 STARTING MODEL: PDB ENTRY 3O2Y                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.67                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS, 25% PEG 4000, 2% ETHYLENE    
REMARK 280  GLYCOL, PH 7.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K     
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       59.58867            
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      119.17733            
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       89.38300            
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      148.97167            
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       29.79433            
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       59.58867            
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      119.17733            
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      148.97167            
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       89.38300            
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       29.79433            
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 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 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: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 4120 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 15330 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -41.0 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        0.00000            
REMARK 350   BIOMT2   2  0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       59.58867            
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 O1   PE3 A 401  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 579  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     ALA A     2                                                      
REMARK 465     THR A     3                                                      
REMARK 465     HIS A     4                                                      
REMARK 465     HIS A     5                                                      
REMARK 465     THR A     6                                                      
REMARK 465     LEU A     7                                                      
REMARK 465     TRP A     8                                                      
REMARK 465     MET A     9                                                      
REMARK 465     GLY A    10                                                      
REMARK 465     LEU A    11                                                      
REMARK 465     ALA A    12                                                      
REMARK 465     LEU A    13                                                      
REMARK 465     LEU A    14                                                      
REMARK 465     GLY A    15                                                      
REMARK 465     VAL A    16                                                      
REMARK 465     LEU A    17                                                      
REMARK 465     GLY A    18                                                      
REMARK 465     ASP A    19                                                      
REMARK 465     LEU A    20                                                      
REMARK 465     GLN A    21                                                      
REMARK 465     ALA A    22                                                      
REMARK 465     ALA A    23                                                      
REMARK 465     PRO A    24                                                      
REMARK 465     GLU A    25                                                      
REMARK 465     ALA A    26                                                      
REMARK 465     GLN A    27                                                      
REMARK 465     GLU A   189                                                      
REMARK 465     GLN A   190                                                      
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   C2   PE3 A   401     C2   PE3 A   401     7555     1.31            
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    ARG A 108   CG  -  CD  -  NE  ANGL. DEV. =  16.8 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    ALA A  65      -75.32    -98.84                                   
REMARK 500    SER A 114      158.14     71.07                                   
REMARK 500    TYR A 125      -39.94     71.18                                   
REMARK 500    GLN A 127      -50.94   -131.23                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     PE3 A  401                                                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PE3 A 401                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 402                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4ORS   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4ORU   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4ORW   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4ORX   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4ORY   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4OS0   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4OS3   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4OS8   RELATED DB: PDB                                   
DBREF  4ORR A    1   190  UNP    P41222   PTGDS_HUMAN      1    190             
SEQADV 4ORR ALA A   65  UNP  P41222    CYS    65 ENGINEERED MUTATION            
SEQRES   1 A  190  MET ALA THR HIS HIS THR LEU TRP MET GLY LEU ALA LEU          
SEQRES   2 A  190  LEU GLY VAL LEU GLY ASP LEU GLN ALA ALA PRO GLU ALA          
SEQRES   3 A  190  GLN VAL SER VAL GLN PRO ASN PHE GLN GLN ASP LYS PHE          
SEQRES   4 A  190  LEU GLY ARG TRP PHE SER ALA GLY LEU ALA SER ASN SER          
SEQRES   5 A  190  SER TRP LEU ARG GLU LYS LYS ALA ALA LEU SER MET ALA          
SEQRES   6 A  190  LYS SER VAL VAL ALA PRO ALA THR ASP GLY GLY LEU ASN          
SEQRES   7 A  190  LEU THR SER THR PHE LEU ARG LYS ASN GLN CYS GLU THR          
SEQRES   8 A  190  ARG THR MET LEU LEU GLN PRO ALA GLY SER LEU GLY SER          
SEQRES   9 A  190  TYR SER TYR ARG SER PRO HIS TRP GLY SER THR TYR SER          
SEQRES  10 A  190  VAL SER VAL VAL GLU THR ASP TYR ASP GLN TYR ALA LEU          
SEQRES  11 A  190  LEU TYR SER GLN GLY SER LYS GLY PRO GLY GLU ASP PHE          
SEQRES  12 A  190  ARG MET ALA THR LEU TYR SER ARG THR GLN THR PRO ARG          
SEQRES  13 A  190  ALA GLU LEU LYS GLU LYS PHE THR ALA PHE CYS LYS ALA          
SEQRES  14 A  190  GLN GLY PHE THR GLU ASP THR ILE VAL PHE LEU PRO GLN          
SEQRES  15 A  190  THR ASP LYS CYS MET THR GLU GLN                              
HET    PE3  A 401      40                                                       
HET    SO4  A 402       5                                                       
HETNAM     PE3 3,6,9,12,15,18,21,24,27,30,33,36,39-                             
HETNAM   2 PE3  TRIDECAOXAHENTETRACONTANE-1,41-DIOL                             
HETNAM     SO4 SULFATE ION                                                      
HETSYN     PE3 POLYETHYLENE GLYCOL                                              
FORMUL   2  PE3    C28 H58 O15                                                  
FORMUL   3  SO4    O4 S 2-                                                      
FORMUL   4  HOH   *102(H2 O)                                                    
HELIX    1   1 GLN A   35  LEU A   40  1                                   6    
HELIX    2   2 SER A   52  ALA A   61  1                                  10    
HELIX    3   3 GLY A  138  ASP A  142  5                                   5    
HELIX    4   4 ARG A  156  GLN A  170  1                                  15    
HELIX    5   5 THR A  173  ASP A  175  5                                   3    
SHEET    1   A10 ILE A 177  PHE A 179  0                                        
SHEET    2   A10 GLY A  41  SER A  50 -1  N  LEU A  48   O  VAL A 178           
SHEET    3   A10 ARG A 144  SER A 150 -1  O  ALA A 146   N  ALA A  49           
SHEET    4   A10 TYR A 128  LYS A 137 -1  N  ALA A 129   O  TYR A 149           
SHEET    5   A10 THR A 115  THR A 123 -1  N  THR A 115   O  SER A 136           
SHEET    6   A10 SER A 104  ARG A 108 -1  N  TYR A 105   O  VAL A 118           
SHEET    7   A10 GLN A  88  PRO A  98 -1  N  GLN A  97   O  SER A 106           
SHEET    8   A10 LEU A  77  ARG A  85 -1  N  LEU A  77   O  LEU A  96           
SHEET    9   A10 SER A  63  PRO A  71 -1  N  ALA A  70   O  ASN A  78           
SHEET   10   A10 GLY A  41  SER A  50 -1  N  TRP A  43   O  SER A  67           
SSBOND   1 CYS A   89    CYS A  186                          1555   1555  2.03  
LINK         C2  PE3 A 401                 O1  PE3 A 401     1555   7555  1.43  
LINK         C2  PE3 A 401                 O1  PE3 A 401     7555   1555  1.43  
SITE     1 AC1 16 SER A  45  LYS A  59  LEU A  62  MET A  64                    
SITE     2 AC1 16 SER A  81  MET A  94  TYR A 107  TRP A 112                    
SITE     3 AC1 16 TYR A 116  GLY A 140  PHE A 143  MET A 145                    
SITE     4 AC1 16 TYR A 149  HOH A 517  HOH A 533  HOH A 544                    
SITE     1 AC2  5 TRP A  54  LYS A  58  LYS A 137  GLY A 138                    
SITE     2 AC2  5 GLU A 141                                                     
CRYST1   60.777   60.777  178.766  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      0.016454  0.009499  0.000000        0.00000                         
SCALE2      0.000000  0.018999  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005594        0.00000