HEADER    OXIDOREDUCTASE                          21-SEP-05   2B3S              
TITLE     STRUCTURE OF THE DSBA MUTANT (P31G-C33A)                              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: THIOL:DISULFIDE INTERCHANGE PROTEIN DSBA;                  
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: ENZYME DSBA;                                               
COMPND   5 SYNONYM: DSBA;                                                       
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 83333;                                               
SOURCE   4 STRAIN: K12;                                                         
SOURCE   5 GENE: DSBA, DSF, PPFA;                                               
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    DISULFIDE; THIOREDOXIN; THIOL-OXYDASE, OXIDOREDUCTASE                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.VIVES,A.ROYANT,L.SERRE                                              
REVDAT   6   20-NOV-24 2B3S    1       REMARK                                   
REVDAT   5   23-AUG-23 2B3S    1       REMARK                                   
REVDAT   4   20-OCT-21 2B3S    1       SEQADV                                   
REVDAT   3   13-JUL-11 2B3S    1       VERSN                                    
REVDAT   2   24-FEB-09 2B3S    1       VERSN                                    
REVDAT   1   05-SEP-06 2B3S    0                                                
JRNL        AUTH   C.VIVES,A.ROYANT,L.SERRE                                     
JRNL        TITL   STRUCTURE OF THE DSBA MUTANT (P31G-C33A)                     
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.96 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2                                           
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) : 1.96                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 14.82                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 25798                          
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) : 0.216                           
REMARK   3   R VALUE            (WORKING SET) : 0.214                           
REMARK   3   FREE R VALUE                     : 0.257                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.200                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1418                            
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) : 1.96                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.01                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1876                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 98.41                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2900                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 109                          
REMARK   3   BIN FREE R VALUE                    : 0.3610                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2938                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 220                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 36.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 31.26                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.31000                                              
REMARK   3    B22 (A**2) : 0.31000                                              
REMARK   3    B33 (A**2) : -0.47000                                             
REMARK   3    B12 (A**2) : 0.16000                                              
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): 0.210         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.180         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.153         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.432         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.948                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.934                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3001 ; 0.012 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  2646 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4056 ; 1.253 ; 1.943       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  6196 ; 0.811 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   372 ; 5.875 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   144 ;37.658 ;25.833       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   518 ;16.467 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     6 ;11.966 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   440 ; 0.074 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3364 ; 0.004 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   590 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   691 ; 0.206 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  2650 ; 0.172 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1466 ; 0.184 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  1673 ; 0.109 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   222 ; 0.227 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):     1 ; 0.204 ; 0.200       
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):    14 ; 0.151 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    61 ; 0.196 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  2402 ; 1.144 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):   768 ; 0.168 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2974 ; 1.276 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1366 ; 1.755 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1082 ; 2.489 ; 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 : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
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 2B3S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 17-OCT-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000034638.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 17-NOV-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID23-1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9184                             
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : TOROIDAL MIRROR                    
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 27226                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.960                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 14.820                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.9                               
REMARK 200  DATA REDUNDANCY                : 2.800                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05700                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.96                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.80                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.43300                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.500                              
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: 1U3A                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 46.30                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 400, HEPES, PH 7.5, VAPOR            
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 293K, PH 7.50                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 32                             
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                                                                      
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       72.13600            
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       36.06800            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2, 3                                                 
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: BIOLOGICAL ASSEMBLY CONSISTS IN ONE MONOMER                  
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
REMARK 350 APPLY THE FOLLOWING TO CHAINS: 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 350                                                                      
REMARK 350 BIOMOLECULE: 3                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3040 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 17110 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -12.0 KCAL/MOL                        
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     ALA A     1                                                      
REMARK 465     LYS A   189                                                      
REMARK 465     ALA B     1                                                      
REMARK 465     LYS B   189                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH B   233     O    HOH B   282              1.95            
REMARK 500   OE1  GLU A   121     O    HOH A   198              1.97            
REMARK 500   O    HOH A   249     O    HOH A   250              1.98            
REMARK 500   O    HOH A   231     O    HOH A   274              2.05            
REMARK 500   O    HOH B   284     O    HOH B   285              2.05            
REMARK 500   OH   TYR A   178     O    HOH A   242              2.09            
REMARK 500   O    HOH B   248     O    HOH B   256              2.10            
REMARK 500   O    HOH A   227     O    HOH B   293              2.19            
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    LYS A   7      -82.80    -92.48                                   
REMARK 500    PHE A  63      -62.57     82.84                                   
REMARK 500    LYS A  98      -74.34    -82.25                                   
REMARK 500    ARG A 103      -34.87   -132.22                                   
REMARK 500    GLU A 187      -45.08    178.65                                   
REMARK 500    LYS B   7      -80.10    -96.41                                   
REMARK 500    LYS B  98      -73.10    -93.80                                   
REMARK 500    ASN B 114       20.40    -64.01                                   
REMARK 500    ALA B 115       15.33   -144.05                                   
REMARK 500    ASN B 156       18.65     55.19                                   
REMARK 500    PRO B 163       10.35    -64.64                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 GLN B    2     TYR B    3                 -144.82                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1DSB   RELATED DB: PDB                                   
REMARK 900 WILD TYPE DSBA                                                       
REMARK 900 RELATED ID: 1TI1   RELATED DB: PDB                                   
REMARK 900 DSBA MUTANT C33A                                                     
REMARK 900 RELATED ID: 1U3A   RELATED DB: PDB                                   
REMARK 900 DSBA MUTANT C33A                                                     
DBREF  2B3S A    1   189  UNP    P0AEG4   DSBA_ECOLI      20    208             
DBREF  2B3S B    1   189  UNP    P0AEG4   DSBA_ECOLI      20    208             
SEQADV 2B3S GLY A   31  UNP  P0AEG4    PRO    50 ENGINEERED MUTATION            
SEQADV 2B3S ALA A   33  UNP  P0AEG4    CYS    52 ENGINEERED MUTATION            
SEQADV 2B3S GLY B   31  UNP  P0AEG4    PRO    50 ENGINEERED MUTATION            
SEQADV 2B3S ALA B   33  UNP  P0AEG4    CYS    52 ENGINEERED MUTATION            
SEQRES   1 A  189  ALA GLN TYR GLU ASP GLY LYS GLN TYR THR THR LEU GLU          
SEQRES   2 A  189  LYS PRO VAL ALA GLY ALA PRO GLN VAL LEU GLU PHE PHE          
SEQRES   3 A  189  SER PHE PHE CYS GLY HIS ALA TYR GLN PHE GLU GLU VAL          
SEQRES   4 A  189  LEU HIS ILE SER ASP ASN VAL LYS LYS LYS LEU PRO GLU          
SEQRES   5 A  189  GLY VAL LYS MET THR LYS TYR HIS VAL ASN PHE MET GLY          
SEQRES   6 A  189  GLY ASP LEU GLY LYS ASP LEU THR GLN ALA TRP ALA VAL          
SEQRES   7 A  189  ALA MET ALA LEU GLY VAL GLU ASP LYS VAL THR VAL PRO          
SEQRES   8 A  189  LEU PHE GLU GLY VAL GLN LYS THR GLN THR ILE ARG SER          
SEQRES   9 A  189  ALA SER ASP ILE ARG ASP VAL PHE ILE ASN ALA GLY ILE          
SEQRES  10 A  189  LYS GLY GLU GLU TYR ASP ALA ALA TRP ASN SER PHE VAL          
SEQRES  11 A  189  VAL LYS SER LEU VAL ALA GLN GLN GLU LYS ALA ALA ALA          
SEQRES  12 A  189  ASP VAL GLN LEU ARG GLY VAL PRO ALA MET PHE VAL ASN          
SEQRES  13 A  189  GLY LYS TYR GLN LEU ASN PRO GLN GLY MET ASP THR SER          
SEQRES  14 A  189  ASN MET ASP VAL PHE VAL GLN GLN TYR ALA ASP THR VAL          
SEQRES  15 A  189  LYS TYR LEU SER GLU LYS LYS                                  
SEQRES   1 B  189  ALA GLN TYR GLU ASP GLY LYS GLN TYR THR THR LEU GLU          
SEQRES   2 B  189  LYS PRO VAL ALA GLY ALA PRO GLN VAL LEU GLU PHE PHE          
SEQRES   3 B  189  SER PHE PHE CYS GLY HIS ALA TYR GLN PHE GLU GLU VAL          
SEQRES   4 B  189  LEU HIS ILE SER ASP ASN VAL LYS LYS LYS LEU PRO GLU          
SEQRES   5 B  189  GLY VAL LYS MET THR LYS TYR HIS VAL ASN PHE MET GLY          
SEQRES   6 B  189  GLY ASP LEU GLY LYS ASP LEU THR GLN ALA TRP ALA VAL          
SEQRES   7 B  189  ALA MET ALA LEU GLY VAL GLU ASP LYS VAL THR VAL PRO          
SEQRES   8 B  189  LEU PHE GLU GLY VAL GLN LYS THR GLN THR ILE ARG SER          
SEQRES   9 B  189  ALA SER ASP ILE ARG ASP VAL PHE ILE ASN ALA GLY ILE          
SEQRES  10 B  189  LYS GLY GLU GLU TYR ASP ALA ALA TRP ASN SER PHE VAL          
SEQRES  11 B  189  VAL LYS SER LEU VAL ALA GLN GLN GLU LYS ALA ALA ALA          
SEQRES  12 B  189  ASP VAL GLN LEU ARG GLY VAL PRO ALA MET PHE VAL ASN          
SEQRES  13 B  189  GLY LYS TYR GLN LEU ASN PRO GLN GLY MET ASP THR SER          
SEQRES  14 B  189  ASN MET ASP VAL PHE VAL GLN GLN TYR ALA ASP THR VAL          
SEQRES  15 B  189  LYS TYR LEU SER GLU LYS LYS                                  
FORMUL   3  HOH   *220(H2 O)                                                    
HELIX    1   1 HIS A   32  LEU A   50  1                                  19    
HELIX    2   2 ASP A   67  LEU A   82  1                                  16    
HELIX    3   3 VAL A   84  LYS A   98  1                                  15    
HELIX    4   4 SER A  104  ASN A  114  1                                  11    
HELIX    5   5 LYS A  118  SER A  128  1                                  11    
HELIX    6   6 SER A  128  VAL A  145  1                                  18    
HELIX    7   7 PRO A  163  MET A  166  5                                   4    
HELIX    8   8 ASN A  170  SER A  186  1                                  17    
HELIX    9   9 HIS B   32  LYS B   48  1                                  17    
HELIX   10  10 GLY B   66  LEU B   82  1                                  17    
HELIX   11  11 VAL B   84  GLN B   97  1                                  14    
HELIX   12  12 SER B  104  ASN B  114  1                                  11    
HELIX   13  13 LYS B  118  ASN B  127  1                                  10    
HELIX   14  14 SER B  128  VAL B  145  1                                  18    
HELIX   15  15 PRO B  163  MET B  166  5                                   4    
HELIX   16  16 ASN B  170  SER B  186  1                                  17    
SHEET    1   A 5 TYR A   9  THR A  11  0                                        
SHEET    2   A 5 TYR A 159  LEU A 161 -1  O  GLN A 160   N  THR A  10           
SHEET    3   A 5 ALA A 152  VAL A 155 -1  N  VAL A 155   O  TYR A 159           
SHEET    4   A 5 VAL A  22  PHE A  26 -1  N  LEU A  23   O  PHE A 154           
SHEET    5   A 5 MET A  56  HIS A  60  1  O  THR A  57   N  GLU A  24           
SHEET    1   B 5 TYR B   9  THR B  11  0                                        
SHEET    2   B 5 TYR B 159  LEU B 161 -1  O  GLN B 160   N  THR B  10           
SHEET    3   B 5 ALA B 152  VAL B 155 -1  N  VAL B 155   O  TYR B 159           
SHEET    4   B 5 VAL B  22  PHE B  26 -1  N  LEU B  23   O  PHE B 154           
SHEET    5   B 5 MET B  56  HIS B  60  1  O  THR B  57   N  VAL B  22           
SSBOND   1 CYS A   30    CYS B   30                          1555   1555  2.08  
CISPEP   1 VAL A  150    PRO A  151          0        -6.08                     
CISPEP   2 VAL B  150    PRO B  151          0        -1.66                     
CRYST1   56.310   56.310  108.204  90.00  90.00 120.00 P 32          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      0.017759  0.010253  0.000000        0.00000                         
SCALE2      0.000000  0.020506  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009242        0.00000