PDB Short entry for 9XIA
HEADER    ISOMERASE(INTRAMOLECULAR OXIDOREDUCTASE)11-OCT-90   9XIA              
TITLE     X-RAY ANALYSIS OF D-XYLOSE ISOMERASE AT 1.9 ANGSTROMS: NATIVE ENZYME  
TITLE    2 IN COMPLEX WITH SUBSTRATE AND WITH A MECHANISM-DESIGNED INACTIVATOR  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: XYLOSE ISOMERASE;                                          
COMPND   3 CHAIN: A;                                                            
COMPND   4 EC: 5.3.1.5;                                                         
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES RUBIGINOSUS;                       
SOURCE   3 ORGANISM_TAXID: 1929                                                 
KEYWDS    ISOMERASE(INTRAMOLECULAR OXIDOREDUCTASE)                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.L.CARRELL,J.P.GLUSKER                                               
REVDAT   6   29-JUL-20 9XIA    1       COMPND REMARK HETNAM LINK                
REVDAT   6 2                   1       SITE   ATOM                              
REVDAT   5   13-JUL-11 9XIA    1       VERSN                                    
REVDAT   4   24-FEB-09 9XIA    1       VERSN                                    
REVDAT   3   01-APR-03 9XIA    1       JRNL                                     
REVDAT   2   15-JUL-92 9XIA    3       HET    FORMUL HETATM                     
REVDAT   1   15-OCT-91 9XIA    0                                                
JRNL        AUTH   H.L.CARRELL,J.P.GLUSKER,V.BURGER,F.MANFRE,D.TRITSCH,         
JRNL        AUTH 2 J.F.BIELLMANN                                                
JRNL        TITL   X-RAY ANALYSIS OF D-XYLOSE ISOMERASE AT 1.9 A: NATIVE ENZYME 
JRNL        TITL 2 IN COMPLEX WITH SUBSTRATE AND WITH A MECHANISM-DESIGNED      
JRNL        TITL 3 INACTIVATOR.                                                 
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V.  86  4440 1989              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   2734296                                                      
JRNL        DOI    10.1073/PNAS.86.12.4440                                      
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   K.HENRICK,D.M.BLOW,H.L.CARRELL,J.P.GLUSKER                   
REMARK   1  TITL   COMPARISON OF BACKBONE STRUCTURES OF GLUCOSE ISOMERASE FROM  
REMARK   1  TITL 2 STREPTOMYCES AND ARTHROBACTER                                
REMARK   1  REF    PROTEIN ENG.                  V.   1   467 1987              
REMARK   1  REFN                   ISSN 0269-2139                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   H.L.CARRELL,B.H.RUBIN,T.J.HURLEY,J.P.GLUSKER                 
REMARK   1  TITL   X-RAY CRYSTAL STRUCTURE OF D-XYLOSE ISOMERASE AT 4-ANGSTROMS 
REMARK   1  TITL 2 RESOLUTION                                                   
REMARK   1  REF    J.BIOL.CHEM.                  V. 259  3230 1984              
REMARK   1  REFN                   ISSN 0021-9258                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 30250                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.141                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3047                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 14                                      
REMARK   3   SOLVENT ATOMS            : 299                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.023 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : 0.045 ; 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 9XIA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000180078.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : NULL                               
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : NULL                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : NULL                               
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.93                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.79                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NULL                                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z+1/2                                     
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
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        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       46.90000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       50.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       51.50000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       46.90000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       50.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       51.50000            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       46.90000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       50.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       51.50000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       46.90000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       50.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       51.50000            
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 300 REMARK: THE STRUCTURE OF THE MONOMER IS AN EIGHT-FOLD ALPHA-BETA     
REMARK 300 BARREL WITH AN EXTENDED C-TERMINAL LOOP WHICH FACILITATES            
REMARK 300 AGGREGATION OF MONOMERS TO TETRAMERS.  TETRAMERS ARE                 
REMARK 300 POSITIONED ON THE 222 SYMMETRY SITE AT THE ORIGIN OF THE             
REMARK 300 CELL.                                                                
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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 33330 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 46170 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -161.0 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       93.80000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000      100.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -1.000000  0.000000  0.000000       93.80000            
REMARK 350   BIOMT2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000 -1.000000      103.00000            
REMARK 350   BIOMT1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4  0.000000 -1.000000  0.000000      100.00000            
REMARK 350   BIOMT3   4  0.000000  0.000000 -1.000000      103.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 483  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 649  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     GLY A   388                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NH1  ARG A   387     O    HOH A   672              2.10            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   OD2  ASP A    28     O    HOH A   595     3656     1.82            
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    GLU A 217   CD    GLU A 217   OE1    -0.115                       
REMARK 500    GLU A 217   CD    GLU A 217   OE2    -0.089                       
REMARK 500    ARG A 340   CZ    ARG A 340   NH1     0.082                       
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    ASN A   2   CB  -  CA  -  C   ANGL. DEV. =  15.6 DEGREES          
REMARK 500    TYR A   3   N   -  CA  -  CB  ANGL. DEV. = -12.3 DEGREES          
REMARK 500    TYR A   3   CB  -  CG  -  CD2 ANGL. DEV. =  -4.1 DEGREES          
REMARK 500    TYR A   3   CB  -  CG  -  CD1 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    ASP A  24   CB  -  CA  -  C   ANGL. DEV. =  16.1 DEGREES          
REMARK 500    ASP A  28   CB  -  CG  -  OD1 ANGL. DEV. =  10.0 DEGREES          
REMARK 500    ASP A  28   CB  -  CG  -  OD2 ANGL. DEV. =  -9.6 DEGREES          
REMARK 500    ARG A  31   NE  -  CZ  -  NH1 ANGL. DEV. =   5.2 DEGREES          
REMARK 500    ASP A  35   N   -  CA  -  CB  ANGL. DEV. = -11.8 DEGREES          
REMARK 500    ASP A  35   CB  -  CG  -  OD1 ANGL. DEV. =  -8.5 DEGREES          
REMARK 500    ASP A  35   CB  -  CG  -  OD2 ANGL. DEV. =   6.2 DEGREES          
REMARK 500    ARG A  42   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500    ARG A  42   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500    ASP A  56   CB  -  CG  -  OD1 ANGL. DEV. =  10.1 DEGREES          
REMARK 500    GLU A  67   CG  -  CD  -  OE2 ANGL. DEV. = -13.9 DEGREES          
REMARK 500    ARG A  68   CA  -  CB  -  CG  ANGL. DEV. =  20.6 DEGREES          
REMARK 500    ARG A  68   NH1 -  CZ  -  NH2 ANGL. DEV. = -12.3 DEGREES          
REMARK 500    ARG A  68   NE  -  CZ  -  NH2 ANGL. DEV. =  11.2 DEGREES          
REMARK 500    ARG A  74   NE  -  CZ  -  NH1 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ARG A  74   NE  -  CZ  -  NH2 ANGL. DEV. = -10.9 DEGREES          
REMARK 500    ARG A  76   NH1 -  CZ  -  NH2 ANGL. DEV. =   9.0 DEGREES          
REMARK 500    ARG A  76   NE  -  CZ  -  NH2 ANGL. DEV. = -11.8 DEGREES          
REMARK 500    PHE A 104   CB  -  CG  -  CD2 ANGL. DEV. =  -4.6 DEGREES          
REMARK 500    ASP A 110   CB  -  CG  -  OD1 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    ARG A 113   NE  -  CZ  -  NH1 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    ARG A 113   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.4 DEGREES          
REMARK 500    ARG A 117   NE  -  CZ  -  NH1 ANGL. DEV. =   4.8 DEGREES          
REMARK 500    ARG A 117   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.7 DEGREES          
REMARK 500    ARG A 121   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.3 DEGREES          
REMARK 500    ASP A 124   CB  -  CG  -  OD1 ANGL. DEV. =  11.1 DEGREES          
REMARK 500    ASP A 124   CB  -  CG  -  OD2 ANGL. DEV. =  -6.7 DEGREES          
REMARK 500    GLU A 132   N   -  CA  -  CB  ANGL. DEV. = -11.3 DEGREES          
REMARK 500    GLU A 144   OE1 -  CD  -  OE2 ANGL. DEV. =  -9.1 DEGREES          
REMARK 500    ARG A 152   NE  -  CZ  -  NH1 ANGL. DEV. =   6.9 DEGREES          
REMARK 500    ARG A 152   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.5 DEGREES          
REMARK 500    ARG A 157   NE  -  CZ  -  NH1 ANGL. DEV. =   7.2 DEGREES          
REMARK 500    ASP A 163   CB  -  CG  -  OD1 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    TYR A 168   CB  -  CG  -  CD2 ANGL. DEV. =   4.2 DEGREES          
REMARK 500    TYR A 168   CB  -  CG  -  CD1 ANGL. DEV. =  -4.7 DEGREES          
REMARK 500    ASP A 175   CB  -  CG  -  OD1 ANGL. DEV. =  -7.0 DEGREES          
REMARK 500    ILE A 176   O   -  C   -  N   ANGL. DEV. =  10.5 DEGREES          
REMARK 500    GLU A 181   CB  -  CG  -  CD  ANGL. DEV. =  23.7 DEGREES          
REMARK 500    ASP A 190   CB  -  CG  -  OD1 ANGL. DEV. =  -7.1 DEGREES          
REMARK 500    VAL A 196   CA  -  CB  -  CG2 ANGL. DEV. =  -9.5 DEGREES          
REMARK 500    GLU A 207   CG  -  CD  -  OE1 ANGL. DEV. =  12.8 DEGREES          
REMARK 500    ARG A 208   NE  -  CZ  -  NH1 ANGL. DEV. =   5.2 DEGREES          
REMARK 500    ARG A 208   NE  -  CZ  -  NH2 ANGL. DEV. =  -8.3 DEGREES          
REMARK 500    PHE A 242   CB  -  CG  -  CD2 ANGL. DEV. =  -5.0 DEGREES          
REMARK 500    ASP A 245   CB  -  CG  -  OD2 ANGL. DEV. =  10.0 DEGREES          
REMARK 500    TYR A 254   CB  -  CG  -  CD1 ANGL. DEV. =  -3.8 DEGREES          
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS      83 ANGLE DEVIATIONS.                             
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    THR A  17      -75.02    -85.33                                   
REMARK 500    GLU A 186      109.25     77.20                                   
REMARK 500    ASN A 247     -167.99   -170.63                                   
REMARK 500    PHE A 357      -73.28   -155.64                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A  42         0.13    SIDE CHAIN                              
REMARK 500    ARG A 117         0.08    SIDE CHAIN                              
REMARK 500    ARG A 321         0.09    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MN A 391  MN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 181   OE2                                                    
REMARK 620 2 GLU A 217   OE2 103.1                                              
REMARK 620 3 ASP A 245   OD1  86.2 105.2                                        
REMARK 620 4 ASP A 287   OD2 166.5  88.8  96.9                                  
REMARK 620 5 DFR A 389   O1   86.3  94.8 159.7  86.3                            
REMARK 620 6 DFR A 389   O5   87.2 158.8  93.8  79.5  67.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MN A 390  MN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A 217   OE1                                                    
REMARK 620 2 HIS A 220   NE2  80.8                                              
REMARK 620 3 ASP A 255   OD1 165.3  94.9                                        
REMARK 620 4 ASP A 255   OD2 112.2  92.8  53.7                                  
REMARK 620 5 ASP A 257   OD2  85.8 161.8  95.0  80.8                            
REMARK 620 6 HOH A 408   O   102.1 104.6  92.5 143.6  90.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 THE STRUCTURE OF THE MONOMER IS AN EIGHT-FOLD ALPHA-BETA             
REMARK 700 BARREL WITH AN EXTENDED C-TERMINAL LOOP WHICH FACILITATES            
REMARK 700 AGGREGATION OF MONOMERS TO TETRAMERS.  TETRAMERS ARE                 
REMARK 700 POSITIONED ON THE 222 SYMMETRY SITE AT THE ORIGIN OF THE             
REMARK 700 CELL.                                                                
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE AMINO ACID SEQUENCE WAS TAKEN FROM INTERNATIONAL PATENT          
REMARK 999 APPLICATION NUMBER:PCT/US88/02765, INTERNATIONAL                     
REMARK 999 PUBLICATION NUMBER:WO89/01520.  IN THIS PATENT RESIDUE 41            
REMARK 999 IS SPECIFIED AS ARG.  HOWEVER, RESIDUE 41 APPEARS TO BE GLN          
REMARK 999 BASED ON THE CRYSTALLOGRAPHIC STUDY.  IN THIS ENTRY RESIDUE          
REMARK 999 41 IS PRESENTED AS GLN.                                              
DBREF  9XIA A    2   388  UNP    P24300   XYLA_STRRU       1    387             
SEQADV 9XIA GLN A   41  UNP  P24300    ARG    40 SEE REMARK 999                 
SEQRES   1 A  388  MET ASN TYR GLN PRO THR PRO GLU ASP ARG PHE THR PHE          
SEQRES   2 A  388  GLY LEU TRP THR VAL GLY TRP GLN GLY ARG ASP PRO PHE          
SEQRES   3 A  388  GLY ASP ALA THR ARG ARG ALA LEU ASP PRO VAL GLU SER          
SEQRES   4 A  388  VAL GLN ARG LEU ALA GLU LEU GLY ALA HIS GLY VAL THR          
SEQRES   5 A  388  PHE HIS ASP ASP ASP LEU ILE PRO PHE GLY SER SER ASP          
SEQRES   6 A  388  SER GLU ARG GLU GLU HIS VAL LYS ARG PHE ARG GLN ALA          
SEQRES   7 A  388  LEU ASP ASP THR GLY MET LYS VAL PRO MET ALA THR THR          
SEQRES   8 A  388  ASN LEU PHE THR HIS PRO VAL PHE LYS ASP GLY GLY PHE          
SEQRES   9 A  388  THR ALA ASN ASP ARG ASP VAL ARG ARG TYR ALA LEU ARG          
SEQRES  10 A  388  LYS THR ILE ARG ASN ILE ASP LEU ALA VAL GLU LEU GLY          
SEQRES  11 A  388  ALA GLU THR TYR VAL ALA TRP GLY GLY ARG GLU GLY ALA          
SEQRES  12 A  388  GLU SER GLY GLY ALA LYS ASP VAL ARG ASP ALA LEU ASP          
SEQRES  13 A  388  ARG MET LYS GLU ALA PHE ASP LEU LEU GLY GLU TYR VAL          
SEQRES  14 A  388  THR SER GLN GLY TYR ASP ILE ARG PHE ALA ILE GLU PRO          
SEQRES  15 A  388  LYS PRO ASN GLU PRO ARG GLY ASP ILE LEU LEU PRO THR          
SEQRES  16 A  388  VAL GLY HIS ALA LEU ALA PHE ILE GLU ARG LEU GLU ARG          
SEQRES  17 A  388  PRO GLU LEU TYR GLY VAL ASN PRO GLU VAL GLY HIS GLU          
SEQRES  18 A  388  GLN MET ALA GLY LEU ASN PHE PRO HIS GLY ILE ALA GLN          
SEQRES  19 A  388  ALA LEU TRP ALA GLY LYS LEU PHE HIS ILE ASP LEU ASN          
SEQRES  20 A  388  GLY GLN ASN GLY ILE LYS TYR ASP GLN ASP LEU ARG PHE          
SEQRES  21 A  388  GLY ALA GLY ASP LEU ARG ALA ALA PHE TRP LEU VAL ASP          
SEQRES  22 A  388  LEU LEU GLU SER ALA GLY TYR SER GLY PRO ARG HIS PHE          
SEQRES  23 A  388  ASP PHE LYS PRO PRO ARG THR GLU ASP PHE ASP GLY VAL          
SEQRES  24 A  388  TRP ALA SER ALA ALA GLY CYS MET ARG ASN TYR LEU ILE          
SEQRES  25 A  388  LEU LYS GLU ARG ALA ALA ALA PHE ARG ALA ASP PRO GLU          
SEQRES  26 A  388  VAL GLN GLU ALA LEU ARG ALA SER ARG LEU ASP GLU LEU          
SEQRES  27 A  388  ALA ARG PRO THR ALA ALA ASP GLY LEU GLN ALA LEU LEU          
SEQRES  28 A  388  ASP ASP ARG SER ALA PHE GLU GLU PHE ASP VAL ASP ALA          
SEQRES  29 A  388  ALA ALA ALA ARG GLY MET ALA PHE GLU ARG LEU ASP GLN          
SEQRES  30 A  388  LEU ALA MET ASP HIS LEU LEU GLY ALA ARG GLY                  
HET    DFR  A 389      12                                                       
HET     MN  A 390       1                                                       
HET     MN  A 391       1                                                       
HETNAM     DFR 3-DEOXY-3-METHYL-BETA-D-FRUCTOFURANOSE                           
HETNAM      MN MANGANESE (II) ION                                               
FORMUL   2  DFR    C7 H14 O5                                                    
FORMUL   3   MN    2(MN 2+)                                                     
FORMUL   5  HOH   *299(H2 O)                                                    
HELIX    1   1 THR A    6  ASP A    9  5                                   4    
HELIX    2   2 LEU A   15  GLY A   19  1                                   5    
HELIX    3   3 ASP A   35  GLY A   47  1                                  13    
HELIX    4   4 ASP A   55  ILE A   59  1                                   5    
HELIX    5   5 SER A   64  GLY A   83  1                                  20    
HELIX    6   6 HIS A   96  LYS A  100  5                                   5    
HELIX    7   7 ASP A  108  LEU A  129  1                                  22    
HELIX    8   8 SER A  145  LYS A  149  5                                   5    
HELIX    9   9 ASP A  150  GLY A  173  1                                  24    
HELIX   10  10 THR A  195  GLU A  204  1                                  10    
HELIX   11  11 ARG A  208  GLU A  210  5                                   3    
HELIX   12  12 GLU A  217  MET A  223  1                                   7    
HELIX   13  13 ASN A  227  ALA A  238  1                                  12    
HELIX   14  14 ASP A  264  ALA A  278  1                                  15    
HELIX   15  15 ASP A  295  ASP A  323  1                                  29    
HELIX   16  16 ASP A  323  SER A  333  1                                  11    
HELIX   17  17 ARG A  334  ALA A  339  1                                   6    
HELIX   18  18 ASP A  345  ASP A  353  1                                   9    
HELIX   19  19 ARG A  354  PHE A  357  5                                   4    
HELIX   20  20 ASP A  361  ALA A  367  1                                   7    
HELIX   21  21 ALA A  371  GLY A  385  1                                  15    
SHEET    1   A 8 TYR A 212  VAL A 214  0                                        
SHEET    2   A 8 ARG A 177  ILE A 180  1  O  PHE A 178   N  GLY A 213           
SHEET    3   A 8 THR A 133  ALA A 136  1  N  TYR A 134   O  ARG A 177           
SHEET    4   A 8 MET A  88  THR A  90  1  O  ALA A  89   N  VAL A 135           
SHEET    5   A 8 GLY A  50  HIS A  54  1  O  PHE A  53   N  THR A  90           
SHEET    6   A 8 PHE A  11  GLY A  14  1  O  PHE A  11   N  GLY A  50           
SHEET    7   A 8 ARG A 284  PHE A 286  1  O  ARG A 284   N  THR A  12           
SHEET    8   A 8 ASP A 245  LEU A 246  1  N  LEU A 246   O  HIS A 285           
SHEET    1   B 2 GLY A 142  ALA A 143  0                                        
SHEET    2   B 2 ASP A 190  ILE A 191 -1  O  ASP A 190   N  ALA A 143           
LINK         NE2 HIS A  54                 C7  DFR A 389     1555   1555  1.78  
LINK         OE2 GLU A 181                MN    MN A 391     1555   1555  2.29  
LINK         OE1 GLU A 217                MN    MN A 390     1555   1555  2.20  
LINK         OE2 GLU A 217                MN    MN A 391     1555   1555  2.35  
LINK         NE2 HIS A 220                MN    MN A 390     1555   1555  2.35  
LINK         OD1 ASP A 245                MN    MN A 391     1555   1555  2.31  
LINK         OD1 ASP A 255                MN    MN A 390     1555   1555  2.28  
LINK         OD2 ASP A 255                MN    MN A 390     1555   1555  2.41  
LINK         OD2 ASP A 257                MN    MN A 390     1555   1555  2.28  
LINK         OD2 ASP A 287                MN    MN A 391     1555   1555  2.28  
LINK         O1  DFR A 389                MN    MN A 391     1555   1555  2.45  
LINK         O5  DFR A 389                MN    MN A 391     1555   1555  2.57  
LINK        MN    MN A 390                 O   HOH A 408     1555   1555  2.36  
CISPEP   1 GLU A  186    PRO A  187          0         7.23                     
CRYST1   93.800  100.000  103.000  90.00  90.00  90.00 I 2 2 2       8          
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      0.010661  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009709        0.00000