HEADER    DNA BINDING PROTEIN                     26-SEP-06   2IHE              
TITLE     CRYSTAL STRUCTURE OF WILD-TYPE SINGLE-STRANDED DNA BINDING PROTEIN    
TITLE    2 FROM THERMUS AQUATICUS                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SINGLE-STRANDED DNA-BINDING PROTEIN;                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: SSB, HELIX-DESTABILIZING PROTEIN;                           
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: THERMUS AQUATICUS;                              
SOURCE   3 ORGANISM_TAXID: 271;                                                 
SOURCE   4 GENE: SSB;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: ROSETTA(DE3)PLYSS;                         
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PETTAQSSB                                 
KEYWDS    SINGLE-STRANDED DNA BINDING PROTEIN (SSB), THERMOPHILE ORGANISM,      
KEYWDS   2 PROTEIN-DNA INTERACTION, PROTEIN-PROTEIN INTERACTION, DNA BINDING    
KEYWDS   3 PROTEIN                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.FEDOROV,G.WITTE,C.URBANKE,D.J.MANSTEIN,U.CURTH                      
REVDAT   5   30-AUG-23 2IHE    1       REMARK                                   
REVDAT   4   18-OCT-17 2IHE    1       REMARK                                   
REVDAT   3   13-JUL-11 2IHE    1       VERSN                                    
REVDAT   2   24-FEB-09 2IHE    1       VERSN                                    
REVDAT   1   02-JAN-07 2IHE    0                                                
JRNL        AUTH   R.FEDOROV,G.WITTE,C.URBANKE,D.J.MANSTEIN,U.CURTH             
JRNL        TITL   3D STRUCTURE OF THERMUS AQUATICUS SINGLE-STRANDED            
JRNL        TITL 2 DNA-BINDING PROTEIN GIVES INSIGHT INTO THE FUNCTIONING OF    
JRNL        TITL 3 SSB PROTEINS.                                                
JRNL        REF    NUCLEIC ACIDS RES.            V.  34  6708 2006              
JRNL        REFN                   ISSN 0305-1048                               
JRNL        PMID   17148487                                                     
JRNL        DOI    10.1093/NAR/GKL1002                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 14759                          
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 SET) : 0.209                           
REMARK   3   FREE R VALUE                     : 0.253                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 753                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1647                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 183                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 48.00                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 48.72                          
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  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2IHE COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-SEP-06.                  
REMARK 100 THE DEPOSITION ID IS D_1000039573.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-SEP-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.40                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID13                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97600                            
REMARK 200  MONOCHROMATOR                  : LIQUID N2 COOLED SI-111 DOUBLE     
REMARK 200                                   CRYSTAL OR SI-111 CHANNEL CUT      
REMARK 200                                   MONOCHROMATORS IN SERIES           
REMARK 200  OPTICS                         : MICROBEAM OPTICS                   
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14759                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 3.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY                : 5.100                              
REMARK 200  R MERGE                    (I) : 0.07700                            
REMARK 200  R SYM                      (I) : 0.08000                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.20                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.35700                            
REMARK 200  R SYM FOR SHELL            (I) : 0.42700                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1SE8                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.66                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM IMIDAZOLE, 35% 2-ETHOXYETHANOL,   
REMARK 280  200 MM CALCIUM ACETATE, PH 7.4, VAPOR DIFFUSION, SITTING DROP,      
REMARK 280  TEMPERATURE 293.15K, PH 7.40                                        
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
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+1/2,Y+1/2,Z                                           
REMARK 290       4555   -X+1/2,Y+1/2,-Z                                         
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       34.92000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       40.33500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       34.92000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       40.33500            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
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 BIOLOGICAL ASSEMBLY IS CREATED BY APPLYING THE OPERATION 
REMARK 300                                                                      
REMARK 300 (-X, Y, -Z) WITH A SHIFT: -1 0 -1                                    
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 2840 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 22400 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -18.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A1074  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A1149  LIES ON A SPECIAL POSITION.                          
REMARK 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET A     1                                                      
REMARK 465     ARG A   112                                                      
REMARK 465     GLU A   113                                                      
REMARK 465     THR A   114                                                      
REMARK 465     LEU A   115                                                      
REMARK 465     GLU A   116                                                      
REMARK 465     ASP A   117                                                      
REMARK 465     ALA A   118                                                      
REMARK 465     ARG A   119                                                      
REMARK 465     GLY A   120                                                      
REMARK 465     GLN A   121                                                      
REMARK 465     PRO A   122                                                      
REMARK 465     ARG A   123                                                      
REMARK 465     LEU A   124                                                      
REMARK 465     ARG A   125                                                      
REMARK 465     ARG A   126                                                      
REMARK 465     ARG A   162                                                      
REMARK 465     ARG A   163                                                      
REMARK 465     ARG A   164                                                      
REMARK 465     GLY A   165                                                      
REMARK 465     GLN A   166                                                      
REMARK 465     GLU A   167                                                      
REMARK 465     GLU A   168                                                      
REMARK 465     GLU A   169                                                      
REMARK 465     SER A   205                                                      
REMARK 465     TRP A   206                                                      
REMARK 465     THR A   207                                                      
REMARK 465     SER A   208                                                      
REMARK 465     SER A   209                                                      
REMARK 465     SER A   210                                                      
REMARK 465     GLY A   211                                                      
REMARK 465     GLU A   212                                                      
REMARK 465     ARG A   213                                                      
REMARK 465     PRO A   240                                                      
REMARK 465     THR A   241                                                      
REMARK 465     VAL A   242                                                      
REMARK 465     GLN A   243                                                      
REMARK 465     THR A   244                                                      
REMARK 465     GLY A   245                                                      
REMARK 465     GLY A   246                                                      
REMARK 465     VAL A   247                                                      
REMARK 465     ASP A   248                                                      
REMARK 465     ILE A   249                                                      
REMARK 465     ASP A   250                                                      
REMARK 465     GLU A   251                                                      
REMARK 465     GLY A   252                                                      
REMARK 465     LEU A   253                                                      
REMARK 465     GLU A   254                                                      
REMARK 465     ASP A   255                                                      
REMARK 465     PHE A   256                                                      
REMARK 465     PRO A   257                                                      
REMARK 465     PRO A   258                                                      
REMARK 465     GLU A   259                                                      
REMARK 465     GLU A   260                                                      
REMARK 465     ASP A   261                                                      
REMARK 465     LEU A   262                                                      
REMARK 465     PRO A   263                                                      
REMARK 465     PHE A   264                                                      
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    ARG A   110     O    HOH A  1153              2.07            
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   O    HOH A  1057     O    HOH A  1057     2656     2.04            
REMARK 500   O    HOH A  1112     O    HOH A  1112     2554     2.19            
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    PRO A 239   CD    PRO A 239   N       0.231                       
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    LYS A  89   CB  -  CA  -  C   ANGL. DEV. = -35.3 DEGREES          
REMARK 500    LYS A  89   N   -  CA  -  C   ANGL. DEV. =  55.2 DEGREES          
REMARK 500    ASP A  90   N   -  CA  -  CB  ANGL. DEV. =  34.8 DEGREES          
REMARK 500    ARG A 110   N   -  CA  -  C   ANGL. DEV. = -18.3 DEGREES          
REMARK 500    PRO A 231   C   -  N   -  CA  ANGL. DEV. =  17.2 DEGREES          
REMARK 500    PRO A 231   C   -  N   -  CD  ANGL. DEV. = -25.3 DEGREES          
REMARK 500    PRO A 231   N   -  CA  -  C   ANGL. DEV. =  21.9 DEGREES          
REMARK 500    ARG A 238   CB  -  CA  -  C   ANGL. DEV. = -15.4 DEGREES          
REMARK 500    ARG A 238   N   -  CA  -  C   ANGL. DEV. =  22.4 DEGREES          
REMARK 500    PRO A 239   CA  -  N   -  CD  ANGL. DEV. = -11.5 DEGREES          
REMARK 500    PRO A 239   N   -  CA  -  C   ANGL. DEV. = -17.2 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    ARG A   3      -65.61   -102.20                                   
REMARK 500    MET A  20      170.99    -59.47                                   
REMARK 500    ARG A  21      146.61    177.45                                   
REMARK 500    GLU A  43     -147.05     36.12                                   
REMARK 500    GLN A  46      -10.86     70.28                                   
REMARK 500    ARG A  48     -150.11   -140.71                                   
REMARK 500    ASP A  68      -27.19   -178.30                                   
REMARK 500    LYS A  89      -11.57     99.88                                   
REMARK 500    ASP A  90      -51.22   -159.90                                   
REMARK 500    LYS A  94      -30.14    -24.57                                   
REMARK 500    ARG A 110     -126.90     61.80                                   
REMARK 500    ARG A 180     -127.05     47.79                                   
REMARK 500    PHE A 215      134.48     84.70                                   
REMARK 500    ARG A 229      177.57    -57.83                                   
REMARK 500    PRO A 231      150.08    -38.42                                   
REMARK 500    PRO A 231     -158.19    -61.06                                   
REMARK 500    ALA A 232     -144.71     58.23                                   
REMARK 500    GLN A 233     -171.66    -41.09                                   
REMARK 500    GLN A 233     -128.41   -169.01                                   
REMARK 500    ALA A 234      173.63    178.02                                   
REMARK 500    ARG A 238      -34.39    116.96                                   
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 LYS A   89     ASP A   90                  -86.51                    
REMARK 500 ASP A   90     GLY A   91                 -144.36                    
REMARK 500 GLY A   91     GLU A   92                  122.44                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1EYG   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF CHYMOTRYPTIC FRAGMENT OF E. COLI SINGLE-        
REMARK 900 STRANDED DNA-BINDING PROTEIN (SSB) BOUND TO TWO 35-MER SINGLE        
REMARK 900 STRAND DNAS, DETERMINED AT 2.80 ANGSTROM RESOLUTION                  
REMARK 900 RELATED ID: 1SE8   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF SINGLE-STRANDED DNA-BINDING PROTEIN FROM D.     
REMARK 900 RADIODURANS, DETERMINED AT 1.80 ANGSTROM RESOLUTION                  
REMARK 900 RELATED ID: 2IHF   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF DELETION MUTANT DELTA 228-252 R190A OF THE      
REMARK 900 SINGLE-STRANDED DNA BINDING PROTEIN FROM THERMUS AQUATICUS,          
REMARK 900 DETERMINED AT 1.90 ANGSTROM RESOLUTION                               
DBREF  2IHE A    1   264  UNP    Q9KH06   SSB_THEAQ        1    264             
SEQRES   1 A  264  MET ALA ARG GLY LEU ASN GLN VAL PHE LEU ILE GLY THR          
SEQRES   2 A  264  LEU THR ALA ARG PRO ASP MET ARG TYR THR PRO GLY GLY          
SEQRES   3 A  264  LEU ALA ILE LEU ASP LEU ASN LEU ALA GLY GLN ASP ALA          
SEQRES   4 A  264  PHE THR ASP GLU SER GLY GLN GLU ARG GLU VAL PRO TRP          
SEQRES   5 A  264  TYR HIS ARG VAL ARG LEU LEU GLY ARG GLN ALA GLU MET          
SEQRES   6 A  264  TRP GLY ASP LEU LEU GLU LYS GLY GLN LEU ILE PHE VAL          
SEQRES   7 A  264  GLU GLY ARG LEU GLU TYR ARG GLN TRP GLU LYS ASP GLY          
SEQRES   8 A  264  GLU LYS LYS SER GLU VAL GLN VAL ARG ALA GLU PHE ILE          
SEQRES   9 A  264  ASP PRO LEU GLU GLY ARG GLY ARG GLU THR LEU GLU ASP          
SEQRES  10 A  264  ALA ARG GLY GLN PRO ARG LEU ARG ARG ALA LEU ASN GLN          
SEQRES  11 A  264  VAL ILE LEU MET GLY ASN LEU THR ARG ASP PRO ASP LEU          
SEQRES  12 A  264  ARG TYR THR PRO GLN GLY THR ALA VAL VAL ARG LEU GLY          
SEQRES  13 A  264  LEU ALA VAL ASN GLU ARG ARG ARG GLY GLN GLU GLU GLU          
SEQRES  14 A  264  ARG THR HIS PHE LEU GLU VAL GLN ALA TRP ARG GLU LEU          
SEQRES  15 A  264  ALA GLU TRP ALA SER GLU LEU ARG LYS GLY ASP GLY LEU          
SEQRES  16 A  264  LEU VAL ILE GLY ARG LEU VAL ASN ASP SER TRP THR SER          
SEQRES  17 A  264  SER SER GLY GLU ARG ARG PHE GLN THR ARG VAL GLU ALA          
SEQRES  18 A  264  LEU ARG LEU GLU ARG PRO THR ARG GLY PRO ALA GLN ALA          
SEQRES  19 A  264  GLY GLY SER ARG PRO PRO THR VAL GLN THR GLY GLY VAL          
SEQRES  20 A  264  ASP ILE ASP GLU GLY LEU GLU ASP PHE PRO PRO GLU GLU          
SEQRES  21 A  264  ASP LEU PRO PHE                                              
FORMUL   2  HOH   *183(H2 O)                                                    
HELIX    1   1 GLY A   60  GLY A   67  1                                   8    
HELIX    2   2 ARG A  180  SER A  187  1                                   8    
SHEET    1   A10 ASP A 142  TYR A 145  0                                        
SHEET    2   A10 ALA A 151  VAL A 159 -1  O  VAL A 152   N  ARG A 144           
SHEET    3   A10 LEU A 128  LEU A 137 -1  N  ASN A 136   O  ALA A 158           
SHEET    4   A10 GLY A 194  ASN A 203 -1  O  VAL A 197   N  LEU A 133           
SHEET    5   A10 THR A 217  GLU A 225 -1  O  GLU A 220   N  ARG A 200           
SHEET    6   A10 HIS A 172  TRP A 179  1  N  GLU A 175   O  VAL A 219           
SHEET    7   A10 ALA A 151  VAL A 159 -1  N  VAL A 159   O  HIS A 172           
SHEET    8   A10 LEU A 128  LEU A 137 -1  N  ASN A 136   O  ALA A 158           
SHEET    9   A10 LEU A   5  LEU A  14 -1  N  PHE A   9   O  GLN A 130           
SHEET   10   A10 LEU A  75  GLN A  86 -1  O  ILE A  76   N  GLY A  12           
SHEET    1   B 8 GLY A 194  ASN A 203  0                                        
SHEET    2   B 8 LEU A 128  LEU A 137 -1  N  LEU A 133   O  VAL A 197           
SHEET    3   B 8 LEU A   5  LEU A  14 -1  N  PHE A   9   O  GLN A 130           
SHEET    4   B 8 ILE A  29  ASP A  38 -1  O  ALA A  35   N  THR A  13           
SHEET    5   B 8 VAL A  50  LEU A  59 -1  O  VAL A  50   N  ASP A  38           
SHEET    6   B 8 SER A  95  LEU A 107  1  O  ALA A 101   N  ARG A  57           
SHEET    7   B 8 LEU A  75  GLN A  86 -1  N  GLU A  83   O  GLN A  98           
SHEET    8   B 8 LEU A   5  LEU A  14 -1  N  GLY A  12   O  ILE A  76           
SHEET    1   C 6 HIS A 172  TRP A 179  0                                        
SHEET    2   C 6 ALA A 151  VAL A 159 -1  N  VAL A 159   O  HIS A 172           
SHEET    3   C 6 LEU A 128  LEU A 137 -1  N  ASN A 136   O  ALA A 158           
SHEET    4   C 6 LEU A   5  LEU A  14 -1  N  PHE A   9   O  GLN A 130           
SHEET    5   C 6 LEU A  75  GLN A  86 -1  O  ILE A  76   N  GLY A  12           
SHEET    6   C 6 SER A  95  LEU A 107 -1  O  GLN A  98   N  GLU A  83           
CRYST1   69.840   80.670   56.510  90.00 124.40  90.00 C 1 2 1       4          
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      0.014318  0.000000  0.009803        0.00000                         
SCALE2      0.000000  0.012396 -0.000001        0.00000                         
SCALE3      0.000000  0.000000  0.021446        0.00000