HEADER    HYDROLASE/HYDROLASE INHIBITOR           16-SEP-04   1XG2              
TITLE     CRYSTAL STRUCTURE OF THE COMPLEX BETWEEN PECTIN METHYLESTERASE AND ITS
TITLE    2 INHIBITOR PROTEIN                                                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PECTINESTERASE 1;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: PECTIN METHYLESTERASE 1, PE 1;                              
COMPND   5 EC: 3.1.1.11;                                                        
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: PECTINESTERASE INHIBITOR;                                  
COMPND   8 CHAIN: B;                                                            
COMPND   9 SYNONYM: PECTIN METHYLESTERASE INHIBITOR, PMEI;                      
COMPND  10 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SOLANUM LYCOPERSICUM;                           
SOURCE   3 ORGANISM_TAXID: 4081;                                                
SOURCE   4 TISSUE: PERICARP;                                                    
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: ACTINIDIA CHINENSIS;                            
SOURCE   7 ORGANISM_TAXID: 3625;                                                
SOURCE   8 EXPRESSION_SYSTEM: PICHIA PASTORIS;                                  
SOURCE   9 EXPRESSION_SYSTEM_TAXID: 4922;                                       
SOURCE  10 EXPRESSION_SYSTEM_STRAIN: X-33;                                      
SOURCE  11 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  12 EXPRESSION_SYSTEM_PLASMID: PPICZALPHAA                               
KEYWDS    PROTEIN-PROTEIN COMPLEX, BETA HELIX, FOUR HELIX BUNDLE, HYDROLASE-    
KEYWDS   2 HYDROLASE INHIBITOR COMPLEX                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.DI MATTEO,A.RAIOLA,L.CAMARDELLA,A.GIOVANE,D.BONIVENTO,G.DE LORENZO, 
AUTHOR   2 F.CERVONE,D.BELLINCAMPI,D.TSERNOGLOU                                 
REVDAT   3   16-OCT-24 1XG2    1       SEQADV                                   
REVDAT   2   24-FEB-09 1XG2    1       VERSN                                    
REVDAT   1   22-MAR-05 1XG2    0                                                
JRNL        AUTH   A.DI MATTEO,A.GIOVANE,A.RAIOLA,L.CAMARDELLA,D.BONIVENTO,     
JRNL        AUTH 2 G.DE LORENZO,F.CERVONE,D.BELLINCAMPI,D.TSERNOGLOU            
JRNL        TITL   STRUCTURAL BASIS FOR THE INTERACTION BETWEEN PECTIN          
JRNL        TITL 2 METHYLESTERASE AND A SPECIFIC INHIBITOR PROTEIN              
JRNL        REF    PLANT CELL                    V.  17   849 2005              
JRNL        REFN                   ISSN 1040-4651                               
JRNL        PMID   15722470                                                     
JRNL        DOI    10.1105/TPC.104.028886                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.GIOVANE,L.SERVILLO,C.BALESTRIERI,A.RAIOLA,R.D'AVINO,       
REMARK   1  AUTH 2 M.TAMBURRINI,M.A.CIARDIELLO,L.CAMARDELLA                     
REMARK   1  TITL   PECTIN METHYLESTERASE INHIBITOR                              
REMARK   1  REF    BIOCHIM.BIOPHYS.ACTA          V.1696   245 2004              
REMARK   1  REFN                   ISSN 0006-3002                               
REMARK   1  PMID   14871665                                                     
REMARK   1  DOI    10.1016/J.BBAPAP.2003.08.011                                 
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   R.D'AVINO,L.CAMARDELLA,T.M.CHRISTENSEN,A.GIOVANE,L.SERVILLO  
REMARK   1  TITL   TOMATO PECTIN METHYLESTERASE: MODELING, FLUORESCENCE, AND    
REMARK   1  TITL 2 INHIBITOR INTERACTION STUDIES-COMPARISON WITH THE BACTERIAL  
REMARK   1  TITL 3 (ERWINIA CHRYSANTHEMI) ENZYME                                
REMARK   1  REF    PROTEINS                      V.  53   830 2003              
REMARK   1  REFN                   ISSN 0887-3585                               
REMARK   1  PMID   14635125                                                     
REMARK   1  DOI    10.1002/PROT.10487                                           
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   F.MICHELI                                                    
REMARK   1  TITL   PECTIN METHYLESTERASES: CELL WALL ENZYMES WITH IMPORTANT     
REMARK   1  TITL 2 ROLES IN PLANT PHYSIOLOGY                                    
REMARK   1  REF    TRENDS PLANT SCI.             V.   6   414 2001              
REMARK   1  REFN                   ISSN 1360-1385                               
REMARK   1  PMID   11544130                                                     
REMARK   1  DOI    10.1016/S1360-1385(01)02045-3                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 25.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 51019                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.199                           
REMARK   3   R VALUE            (WORKING SET) : 0.198                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2730                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.95                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3001                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.5780                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 148                          
REMARK   3   BIN FREE R VALUE                    : 0.6170                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3573                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 453                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.18                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.13000                                              
REMARK   3    B22 (A**2) : 0.13000                                              
REMARK   3    B33 (A**2) : -0.19000                                             
REMARK   3    B12 (A**2) : 0.06000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.132         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.128         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.074         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 2.561         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.920                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.902                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3662 ; 0.010 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  3258 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4974 ; 1.211 ; 1.949       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  7607 ; 1.174 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   466 ; 5.869 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   559 ; 0.074 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  4126 ; 0.005 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   719 ; 0.004 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   742 ; 0.208 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  3901 ; 0.237 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  2105 ; 0.082 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   328 ; 0.187 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    17 ; 0.280 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    61 ; 0.250 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    27 ; 0.309 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2320 ; 0.592 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3738 ; 1.138 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1342 ; 1.947 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1236 ; 3.377 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1XG2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 24-SEP-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000030323.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-FEB-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ELETTRA                            
REMARK 200  BEAMLINE                       : 5.2R                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.99                               
REMARK 200  MONOCHROMATOR                  : SI 111 CHANNEL                     
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 56180                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.5                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.08200                            
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) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 92.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33800                            
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: MIR                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 64.46                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.49                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: MAGNESIUM SULFATE, MES, PH 6.0, VAPOR    
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 294K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+2/3                                            
REMARK 290       3555   -X+Y,-X,Z+1/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+1/3                                           
REMARK 290       6555   -X,-X+Y,-Z+2/3                                          
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       99.39667            
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       49.69833            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       49.69833            
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       99.39667            
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 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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 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     GLY B   151                                                      
REMARK 465     SER B   152                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LYS A   28   CE   NZ                                             
REMARK 480     LYS A  175   NZ                                                  
REMARK 480     LYS A  273   CD   CE   NZ                                        
REMARK 480     ARG B   27   NE   CZ   NH1  NH2                                  
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   OH   TYR A    63     OE1  GLU B     1     3665     1.83            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    SER B  40   CB    SER B  40   OG      0.119                       
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 128   CB  -  CG  -  OD2 ANGL. DEV. =   6.1 DEGREES          
REMARK 500    ASP A 145   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ASP A 285   CB  -  CG  -  OD2 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    ASP A 317   CB  -  CG  -  OD2 ANGL. DEV. =   6.3 DEGREES          
REMARK 500    ARG B  27   O   -  C   -  N   ANGL. DEV. =  -9.9 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    SER A  70       22.24   -147.37                                   
REMARK 500    ASP A 108     -140.86     58.43                                   
REMARK 500    ALA A 129     -155.30   -161.13                                   
REMARK 500    TYR A 130      -93.96   -119.84                                   
REMARK 500    GLN A 139     -178.40     71.21                                   
REMARK 500    THR A 151      -83.75   -125.25                                   
REMARK 500    ASN A 158       36.99   -142.23                                   
REMARK 500    ALA A 253       -6.18     77.31                                   
REMARK 500    ILE B   8      -62.01    -92.77                                   
REMARK 500    PHE B 118       51.45   -103.25                                   
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    ARG B  27        -20.18                                           
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  1XG2 A    1   317  UNP    P14280   PME1_LYCES     230    546             
DBREF  1XG2 B    1   152  UNP    P83326   PMEI_ACTCH       1    152             
SEQADV 1XG2 PHE B    0  UNP  P83326              CLONING ARTIFACT               
SEQRES   1 A  317  ILE ILE ALA ASN ALA VAL VAL ALA GLN ASP GLY THR GLY          
SEQRES   2 A  317  ASP TYR GLN THR LEU ALA GLU ALA VAL ALA ALA ALA PRO          
SEQRES   3 A  317  ASP LYS SER LYS THR ARG TYR VAL ILE TYR VAL LYS ARG          
SEQRES   4 A  317  GLY THR TYR LYS GLU ASN VAL GLU VAL ALA SER ASN LYS          
SEQRES   5 A  317  MET ASN LEU MET ILE VAL GLY ASP GLY MET TYR ALA THR          
SEQRES   6 A  317  THR ILE THR GLY SER LEU ASN VAL VAL ASP GLY SER THR          
SEQRES   7 A  317  THR PHE ARG SER ALA THR LEU ALA ALA VAL GLY GLN GLY          
SEQRES   8 A  317  PHE ILE LEU GLN ASP ILE CYS ILE GLN ASN THR ALA GLY          
SEQRES   9 A  317  PRO ALA LYS ASP GLN ALA VAL ALA LEU ARG VAL GLY ALA          
SEQRES  10 A  317  ASP MET SER VAL ILE ASN ARG CYS ARG ILE ASP ALA TYR          
SEQRES  11 A  317  GLN ASP THR LEU TYR ALA HIS SER GLN ARG GLN PHE TYR          
SEQRES  12 A  317  ARG ASP SER TYR VAL THR GLY THR VAL ASP PHE ILE PHE          
SEQRES  13 A  317  GLY ASN ALA ALA VAL VAL PHE GLN LYS CYS GLN LEU VAL          
SEQRES  14 A  317  ALA ARG LYS PRO GLY LYS TYR GLN GLN ASN MET VAL THR          
SEQRES  15 A  317  ALA GLN GLY ARG THR ASP PRO ASN GLN ALA THR GLY THR          
SEQRES  16 A  317  SER ILE GLN PHE CYS ASN ILE ILE ALA SER SER ASP LEU          
SEQRES  17 A  317  GLU PRO VAL LEU LYS GLU PHE PRO THR TYR LEU GLY ARG          
SEQRES  18 A  317  PRO TRP LYS GLU TYR SER ARG THR VAL VAL MET GLU SER          
SEQRES  19 A  317  TYR LEU GLY GLY LEU ILE ASN PRO ALA GLY TRP ALA GLU          
SEQRES  20 A  317  TRP ASP GLY ASP PHE ALA LEU LYS THR LEU TYR TYR GLY          
SEQRES  21 A  317  GLU PHE MET ASN ASN GLY PRO GLY ALA GLY THR SER LYS          
SEQRES  22 A  317  ARG VAL LYS TRP PRO GLY TYR HIS VAL ILE THR ASP PRO          
SEQRES  23 A  317  ALA LYS ALA MET PRO PHE THR VAL ALA LYS LEU ILE GLN          
SEQRES  24 A  317  GLY GLY SER TRP LEU ARG SER THR GLY VAL ALA TYR VAL          
SEQRES  25 A  317  ASP GLY LEU TYR ASP                                          
SEQRES   1 B  153  PHE GLU ASN HIS LEU ILE SER GLU ILE CYS PRO LYS THR          
SEQRES   2 B  153  ARG ASN PRO SER LEU CYS LEU GLN ALA LEU GLU SER ASP          
SEQRES   3 B  153  PRO ARG SER ALA SER LYS ASP LEU LYS GLY LEU GLY GLN          
SEQRES   4 B  153  PHE SER ILE ASP ILE ALA GLN ALA SER ALA LYS GLN THR          
SEQRES   5 B  153  SER LYS ILE ILE ALA SER LEU THR ASN GLN ALA THR ASP          
SEQRES   6 B  153  PRO LYS LEU LYS GLY ARG TYR GLU THR CYS SER GLU ASN          
SEQRES   7 B  153  TYR ALA ASP ALA ILE ASP SER LEU GLY GLN ALA LYS GLN          
SEQRES   8 B  153  PHE LEU THR SER GLY ASP TYR ASN SER LEU ASN ILE TYR          
SEQRES   9 B  153  ALA SER ALA ALA PHE ASP GLY ALA GLY THR CYS GLU ASP          
SEQRES  10 B  153  SER PHE GLU GLY PRO PRO ASN ILE PRO THR GLN LEU HIS          
SEQRES  11 B  153  GLN ALA ASP LEU LYS LEU GLU ASP LEU CYS ASP ILE VAL          
SEQRES  12 B  153  LEU VAL ILE SER ASN LEU LEU PRO GLY SER                      
FORMUL   3  HOH   *453(H2 O)                                                    
HELIX    1   1 THR A   17  ALA A   25  1                                   9    
HELIX    2   2 THR A   79  ALA A   83  5                                   5    
HELIX    3   3 GLY A  104  ASP A  108  5                                   5    
HELIX    4   4 LEU A  208  LEU A  212  5                                   5    
HELIX    5   5 ASP A  285  MET A  290  1                                   6    
HELIX    6   6 THR A  293  ILE A  298  1                                   6    
HELIX    7   7 GLY A  300  ARG A  305  1                                   6    
HELIX    8   8 SER A  306  GLY A  308  5                                   3    
HELIX    9   9 ASN B    2  CYS B    9  1                                   8    
HELIX   10  10 PRO B   10  THR B   12  5                                   3    
HELIX   11  11 ASN B   14  SER B   24  1                                  11    
HELIX   12  12 ARG B   27  LYS B   31  5                                   5    
HELIX   13  13 ASP B   32  ASN B   60  1                                  29    
HELIX   14  14 ASP B   64  GLY B   95  1                                  32    
HELIX   15  15 ASP B   96  PHE B  118  1                                  23    
HELIX   16  16 PRO B  125  LEU B  149  1                                  25    
SHEET    1   A11 ALA A   5  VAL A   7  0                                        
SHEET    2   A11 TYR A  33  VAL A  37  1  O  TYR A  36   N  VAL A   7           
SHEET    3   A11 LEU A  55  GLY A  59  1  O  MET A  56   N  ILE A  35           
SHEET    4   A11 ILE A  93  GLN A  95  1  O  ILE A  93   N  ILE A  57           
SHEET    5   A11 SER A 120  ASN A 123  1  O  ASN A 123   N  LEU A  94           
SHEET    6   A11 ARG A 140  ARG A 144  1  O  ARG A 144   N  ILE A 122           
SHEET    7   A11 ALA A 160  GLN A 164  1  O  GLN A 164   N  TYR A 143           
SHEET    8   A11 GLY A 194  GLN A 198  1  O  GLN A 198   N  PHE A 163           
SHEET    9   A11 ARG A 228  MET A 232  1  O  MET A 232   N  ILE A 197           
SHEET   10   A11 TYR A 258  PHE A 262  1  O  GLY A 260   N  VAL A 231           
SHEET   11   A11 TYR A 280  ILE A 283  1  O  HIS A 281   N  TYR A 259           
SHEET    1   B 8 GLY A  40  LYS A  43  0                                        
SHEET    2   B 8 THR A  65  GLY A  69  1  O  THR A  66   N  TYR A  42           
SHEET    3   B 8 CYS A  98  ASN A 101  1  O  CYS A  98   N  ILE A  67           
SHEET    4   B 8 ARG A 126  ASP A 128  1  O  ASP A 128   N  ILE A  99           
SHEET    5   B 8 TYR A 147  GLY A 150  1  O  TYR A 147   N  ILE A 127           
SHEET    6   B 8 GLN A 167  ALA A 170  1  O  VAL A 169   N  VAL A 148           
SHEET    7   B 8 ASN A 201  ALA A 204  1  O  ASN A 201   N  LEU A 168           
SHEET    8   B 8 TYR A 235  LEU A 236  1  O  TYR A 235   N  ILE A 202           
SHEET    1   C 7 VAL A  46  VAL A  48  0                                        
SHEET    2   C 7 LEU A  85  ALA A  87  1  O  ALA A  86   N  VAL A  48           
SHEET    3   C 7 LEU A 113  VAL A 115  1  O  ARG A 114   N  LEU A  85           
SHEET    4   C 7 LEU A 134  ALA A 136  1  O  TYR A 135   N  LEU A 113           
SHEET    5   C 7 ILE A 155  GLY A 157  1  O  PHE A 156   N  LEU A 134           
SHEET    6   C 7 ASN A 179  GLN A 184  1  O  ALA A 183   N  ILE A 155           
SHEET    7   C 7 THR A 217  GLY A 220  1  O  TYR A 218   N  VAL A 181           
SSBOND   1 CYS B    9    CYS B   18                          1555   1555  2.15  
SSBOND   2 CYS B   74    CYS B  114                          1555   1555  2.06  
CISPEP   1 PRO B  121    PRO B  122          0        -2.21                     
CRYST1   90.379   90.379  149.095  90.00  90.00 120.00 P 32 2 1      6          
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      0.011065  0.006388  0.000000        0.00000                         
SCALE2      0.000000  0.012776  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006707        0.00000