HEADER    DNA                                     20-APR-05   1ZF9              
TITLE     GGG DUPLEX A-DNA                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-D(*CP*CP*CP*CP*CP*GP*GP*GP*GP*G)-3';                    
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: DNA WAS SYNTHESIZED ON AN APPLIED BIOSYSTEMS DNA      
SOURCE   4 SYNTHESIZER USING PHOSPHORAMIDITE CHEMISTRY, WITH THE TRITYL-        
SOURCE   5 PROTECTING GROUP LEFT INTACT AT THE 5'-TERMINAL NUCLEOTIDE THEN      
SOURCE   6 DEPROTECTED BY TREATMENT WITH 3% ACETIC ACID FOR FIFTEEN MINUTES,    
SOURCE   7 NEUTRALIZED WITH AMMONIUM HYDROXIDE, AND DESALTED ON A SIGMA G-25    
SOURCE   8 SEPHADEX COLUMN.                                                     
KEYWDS    CRYSTALLOGRAPHIC SCREEN, DNA STRUCTURE, HOLLIDAY JUNCTION, MOLECULAR  
KEYWDS   2 STRUCTURE, DNA                                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    F.A.HAYS,A.T.TEEGARDEN,Z.J.R.JONES,M.HARMS,D.RAUP,J.WATSON,           
AUTHOR   2 E.CAVALIERE,P.S.HO                                                   
REVDAT   5   03-APR-24 1ZF9    1       REMARK                                   
REVDAT   4   14-FEB-24 1ZF9    1       REMARK LINK                              
REVDAT   3   11-OCT-17 1ZF9    1       REMARK                                   
REVDAT   2   24-FEB-09 1ZF9    1       VERSN                                    
REVDAT   1   10-MAY-05 1ZF9    0                                                
JRNL        AUTH   F.A.HAYS,A.TEEGARDEN,Z.J.JONES,M.HARMS,D.RAUP,J.WATSON,      
JRNL        AUTH 2 E.CAVALIERE,P.S.HO                                           
JRNL        TITL   HOW SEQUENCE DEFINES STRUCTURE: A CRYSTALLOGRAPHIC MAP OF    
JRNL        TITL 2 DNA STRUCTURE AND CONFORMATION.                              
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 102  7157 2005              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   15870206                                                     
JRNL        DOI    10.1073/PNAS.0409455102                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.38 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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 : MAXIMUM LIKELIHOOD                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.38                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 18.99                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 53828.800                      
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 92.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 10051                          
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) : 0.237                           
REMARK   3   FREE R VALUE                     : 0.259                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.300                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 1034                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.008                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.38                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.47                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 76.90                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1234                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2530                       
REMARK   3   BIN FREE R VALUE                    : 0.3120                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 9.10                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 124                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.028                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 404                                     
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 94                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 5.00                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 6.10                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.25000                                             
REMARK   3    B22 (A**2) : 0.13900                                              
REMARK   3    B33 (A**2) : 1.11100                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.18                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.08                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.21                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.16                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.028                           
REMARK   3   BOND ANGLES            (DEGREES) : 2.900                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 35.90                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 2.740                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 0.464 ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 0.613 ; 0.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 0.964 ; 0.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 1.426 ; 0.000                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.74                                                 
REMARK   3   BSOL        : 80.17                                                
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  : CNS_TOPPAR:DNA-RNA_REP.PARAM                   
REMARK   3  PARAMETER FILE  2  : CNS_TOPPAR:WATER_REP.PARAM                     
REMARK   3  PARAMETER FILE  3  : CNS_TOPPAR:ION.PARAM                           
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : CNS_TOPPAR:DNA-RNA.TOP                         
REMARK   3  TOPOLOGY FILE  2   : CNS_TOPPAR:DNA-RNA.LINK                        
REMARK   3  TOPOLOGY FILE  3   : CNS_TOPPAR:WATER.TOP                           
REMARK   3  TOPOLOGY FILE  4   : CNS_TOPPAR:ION.TOP                             
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: STRUCTURE NOT REFINED TO ITS LOWEST R     
REMARK   3  AND RFREE VALUES. PLEASE REFER TO CITATION ABOVE FOR MORE           
REMARK   3  DETAILS.                                                            
REMARK   4                                                                      
REMARK   4 1ZF9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-APR-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000032652.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 14-JUN-03; 02-FEB-03               
REMARK 200  TEMPERATURE           (KELVIN) : 103; 103                           
REMARK 200  PH                             : 7.00                               
REMARK 200  NUMBER OF CRYSTALS USED        : 2                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y; N                               
REMARK 200  RADIATION SOURCE               : APS; ROTATING ANODE                
REMARK 200  BEAMLINE                       : 14-ID-B; NULL                      
REMARK 200  X-RAY GENERATOR MODEL          : NULL; RIGAKU RUH3R                 
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M; NULL                            
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.972; 1.542                       
REMARK 200  MONOCHROMATOR                  : NULL; NULL                         
REMARK 200  OPTICS                         : NULL; NULL                         
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD; IMAGE PLATE                   
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH; RIGAKU RAXIS IV       
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 10745                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.350                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 99.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 92.2                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.03700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 29.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.35                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.40                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 48.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.29700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.000                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH; NULL                        
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: NDB ENTRY ADJ049                                     
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.22                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: NA CACODYLATE, CACL2, SPERMINE, MPD IN   
REMARK 280  RESEVOIR, PH 7.0, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE        
REMARK 280  298K, PH 7.00                                                       
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       11.64000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       23.77500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       22.65500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       23.77500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       11.64000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       22.65500            
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 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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 A    41     O    HOH A    54              1.61            
REMARK 500   OP2   DG B    18     O    HOH B    49              1.89            
REMARK 500   C4'   DC A     1     O    HOH A    79              2.01            
REMARK 500   O    HOH A    89     O    HOH B    75              2.01            
REMARK 500   O    HOH A    58     O    HOH A    72              2.05            
REMARK 500   O    HOH A   111     O    HOH B    75              2.06            
REMARK 500   O    HOH A    50     O    HOH A    91              2.07            
REMARK 500   O    HOH A    21     O    HOH A    26              2.09            
REMARK 500   OP1   DC A     4     O    HOH A   116              2.10            
REMARK 500   O3'   DG B    19     O    HOH B    99              2.13            
REMARK 500   O    HOH A   109     O    HOH A   118              2.16            
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   O5'   DG B    20     O    HOH A    63     2555     1.84            
REMARK 500   O    HOH A    51     O    HOH B    99     3546     2.05            
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     DC A   3   C2     DC A   3   O2     -0.064                       
REMARK 500     DC A   4   C2     DC A   4   N3      0.058                       
REMARK 500     DC A   5   C2     DC A   5   O2      0.063                       
REMARK 500     DC A   5   N1     DC A   5   C2     -0.076                       
REMARK 500     DC A   5   C2     DC A   5   N3      0.062                       
REMARK 500     DG A   6   N3     DG A   6   C4      0.043                       
REMARK 500     DG A   7   N1     DG A   7   C2     -0.070                       
REMARK 500     DG A  10   O3'    DG A  10   C3'    -0.077                       
REMARK 500     DC B  11   C2     DC B  11   O2     -0.062                       
REMARK 500     DC B  13   P      DC B  13   OP2    -0.116                       
REMARK 500     DC B  13   O3'    DC B  13   C3'    -0.037                       
REMARK 500     DC B  15   C2     DC B  15   O2     -0.120                       
REMARK 500     DG B  16   O3'    DG B  16   C3'    -0.041                       
REMARK 500     DG B  16   C6     DG B  16   O6     -0.056                       
REMARK 500     DG B  17   N3     DG B  17   C4      0.042                       
REMARK 500     DG B  18   O3'    DG B  18   C3'    -0.052                       
REMARK 500     DG B  18   C8     DG B  18   N9     -0.042                       
REMARK 500     DG B  19   C4     DG B  19   C5     -0.042                       
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     DC A   1   O5' -  C5' -  C4' ANGL. DEV. =  16.6 DEGREES          
REMARK 500     DC A   1   O4' -  C1' -  N1  ANGL. DEV. =  -5.6 DEGREES          
REMARK 500     DC A   2   O3' -  P   -  OP2 ANGL. DEV. = -18.9 DEGREES          
REMARK 500     DC A   2   O3' -  P   -  OP1 ANGL. DEV. =  16.6 DEGREES          
REMARK 500     DC A   3   O4' -  C4' -  C3' ANGL. DEV. =  -2.9 DEGREES          
REMARK 500     DG A   8   O4' -  C1' -  N9  ANGL. DEV. =   2.1 DEGREES          
REMARK 500     DC B  11   O5' -  C5' -  C4' ANGL. DEV. =  -5.0 DEGREES          
REMARK 500     DC B  13   O4' -  C1' -  N1  ANGL. DEV. =   2.4 DEGREES          
REMARK 500     DG B  16   O4' -  C1' -  C2' ANGL. DEV. =   4.1 DEGREES          
REMARK 500     DG B  17   O3' -  P   -  OP2 ANGL. DEV. =   6.6 DEGREES          
REMARK 500     DG B  17   O5' -  P   -  OP2 ANGL. DEV. =  -8.4 DEGREES          
REMARK 500     DG B  17   C5' -  C4' -  C3' ANGL. DEV. =   7.8 DEGREES          
REMARK 500     DG B  17   O4' -  C1' -  N9  ANGL. DEV. =   2.9 DEGREES          
REMARK 500     DG B  19   O4' -  C4' -  C3' ANGL. DEV. =  -6.0 DEGREES          
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     DC A   5         0.08    SIDE CHAIN                              
REMARK 500     DC B  12         0.08    SIDE CHAIN                              
REMARK 500     DC B  15         0.08    SIDE CHAIN                              
REMARK 500     DG B  16         0.05    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                              NA A  64  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A  79   O                                                      
REMARK 620 2 HOH A  88   O   112.3                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA B  35  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DG B  17   O6                                                     
REMARK 620 2 HOH B  37   O    73.8                                              
REMARK 620 3 HOH B  47   O    71.0 113.1                                        
REMARK 620 4 HOH B  73   O   159.7  99.7  95.0                                  
REMARK 620 5 HOH B  81   O   107.3 169.7  58.9  75.7                            
REMARK 620 N                    1     2     3     4                             
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA B 35                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 64                   
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1P4Y   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1P4Z   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1DCW   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1DCV   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZEW   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZEX   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZEY   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZEZ   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF0   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF1   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF2   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF3   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF4   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF5   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF6   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF7   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZF8   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFA   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFB   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFC   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFE   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFF   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFG   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFH   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZFM   RELATED DB: PDB                                   
DBREF  1ZF9 A    1    10  PDB    1ZF9     1ZF9             1     10             
DBREF  1ZF9 B   11    20  PDB    1ZF9     1ZF9            11     20             
SEQRES   1 A   10   DC  DC  DC  DC  DC  DG  DG  DG  DG  DG                      
SEQRES   1 B   10   DC  DC  DC  DC  DC  DG  DG  DG  DG  DG                      
HET     NA  A  64       1                                                       
HET     NA  B  35       1                                                       
HETNAM      NA SODIUM ION                                                       
FORMUL   3   NA    2(NA 1+)                                                     
FORMUL   5  HOH   *94(H2 O)                                                     
LINK        NA    NA A  64                 O   HOH A  79     1555   1555  2.85  
LINK        NA    NA A  64                 O   HOH A  88     1555   1555  2.62  
LINK         O6   DG B  17                NA    NA B  35     1555   1555  2.50  
LINK        NA    NA B  35                 O   HOH B  37     1555   1555  2.28  
LINK        NA    NA B  35                 O   HOH B  47     1555   1555  2.53  
LINK        NA    NA B  35                 O   HOH B  73     1555   1555  2.26  
LINK        NA    NA B  35                 O   HOH B  81     1555   1555  2.49  
SITE     1 AC1  5  DG B  17  HOH B  37  HOH B  47  HOH B  73                    
SITE     2 AC1  5 HOH B  81                                                     
SITE     1 AC2  4  DC A   1   DG A   7  HOH A  79  HOH A  88                    
CRYST1   23.280   45.310   47.550  90.00  90.00  90.00 P 21 21 21    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      0.042955  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.022070  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021030        0.00000