PDB Short entry for 3SD8
HEADER    DNA                                     08-JUN-11   3SD8              
TITLE     CRYSTAL STRUCTURE OF ARA-FHNA DECAMER DNA                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-D(*GP*CP*GP*TP*AP*(F4H)P*AP*CP*GP*C)-3';                
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 OTHER_DETAILS: ARA-3'-FLUORO HEXITOL (ARA-FHNA) MODIFIED DNA DECAMER 
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES                                                       
KEYWDS    A-FORM DNA, ARA-3'-FLUORO HEXITOL NUCLEIC ACID, ARA-FHNA, ANTISENSE   
KEYWDS   2 OLIGONUCLEOTIDES, DNA                                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.EGLI,P.S.PALLAN                                                     
REVDAT   2   13-SEP-23 3SD8    1       REMARK LINK                              
REVDAT   1   29-AUG-12 3SD8    0                                                
JRNL        AUTH   M.EGLI,P.S.PALLAN,C.R.ALLERSON,T.P.PRAKASH,A.BERDEJA,J.YU,   
JRNL        AUTH 2 B.BHAT,E.E.SWAYZE,P.SETH                                     
JRNL        TITL   STRUCTURAL ORIGINS OF OPPOSITE EFFECTS ON STABILITY BY AXIAL 
JRNL        TITL 2 AND EQUATORIAL 3'-FLUORO MODIFICATIONS OF HEXITOL NUCLEIC    
JRNL        TITL 3 ACID (HNA)                                                   
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.67 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0109                                      
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) : 1.67                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 31.30                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 6138                           
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) : 0.195                           
REMARK   3   R VALUE            (WORKING SET) : 0.191                           
REMARK   3   FREE R VALUE                     : 0.238                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 516                             
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) : 1.67                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.71                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 438                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 95.45                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2260                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 45                           
REMARK   3   BIN FREE R VALUE                    : 0.3110                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 408                                     
REMARK   3   HETEROGEN ATOMS          : 1                                       
REMARK   3   SOLVENT ATOMS            : 29                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 27.38                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.46000                                              
REMARK   3    B22 (A**2) : -1.16000                                             
REMARK   3    B33 (A**2) : -0.31000                                             
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 OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.147         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.110         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.080         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.459         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.965                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.956                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   454 ; 0.012 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):   690 ; 1.738 ; 3.000       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):    76 ; 0.105 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   210 ; 0.022 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   454 ; 4.782 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   690 ; 6.063 ; 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):   454 ; 3.435 ; 3.000       
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   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS:                                           
REMARK   3  HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS                   
REMARK   3  U VALUES      : REFINED INDIVIDUALLY                                
REMARK   4                                                                      
REMARK   4 3SD8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-JUN-11.                  
REMARK 100 THE DEPOSITION ID IS D_1000066061.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 13-DEC-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 21-ID-D                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.769                              
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 6138                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.670                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 32.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.6                               
REMARK 200  DATA REDUNDANCY                : 8.800                              
REMARK 200  R MERGE                    (I) : 0.05900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 54.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.67                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.73                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 9.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.38700                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CCP4 MOLREP                                           
REMARK 200 STARTING MODEL: PDB ENTRY 3EY2                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 44.95                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.23                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1UL 1.5 MM DNA + 1 UL 40 MM SODIUM       
REMARK 280  CACODYLATE, PH 6.0, 80 MM STRONTIUM CHLORIDE, 12MM SPERMINE         
REMARK 280  TETRAHYDROCHLORIDE, 10% MPD WERE EQUILIBRATED AGAINST A             
REMARK 280  RESERVOIR OF 1 ML 35% MPD, VAPOR DIFFUSION, HANGING DROP,           
REMARK 280  TEMPERATURE 291K                                                    
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       14.00150            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       22.91650            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       21.42750            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       22.91650            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       14.00150            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       21.42750            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1240 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 3700 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -29.0 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 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     DG A 109   O3'    DG A 109   C3'    -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 102   O4' -  C4' -  C3' ANGL. DEV. =  -2.7 DEGREES          
REMARK 500     DC A 102   O4' -  C1' -  N1  ANGL. DEV. =   3.3 DEGREES          
REMARK 500    F4H A 106   O3' -  P   -  O5' ANGL. DEV. = -22.2 DEGREES          
REMARK 500     DA A 107   O4' -  C1' -  N9  ANGL. DEV. =   3.0 DEGREES          
REMARK 500     DG A 109   O4' -  C4' -  C3' ANGL. DEV. =  -2.9 DEGREES          
REMARK 500     DG A 109   C3' -  C2' -  C1' ANGL. DEV. =  -5.3 DEGREES          
REMARK 500     DC B 202   O4' -  C1' -  N1  ANGL. DEV. =   1.8 DEGREES          
REMARK 500     DG B 203   O4' -  C4' -  C3' ANGL. DEV. =  -2.6 DEGREES          
REMARK 500     DA B 205   O4' -  C4' -  C3' ANGL. DEV. =  -3.0 DEGREES          
REMARK 500     DA B 205   C4' -  C3' -  C2' ANGL. DEV. =  -4.9 DEGREES          
REMARK 500     DA B 205   O4' -  C1' -  N9  ANGL. DEV. =   1.9 DEGREES          
REMARK 500    F4H B 206   O3' -  P   -  O5' ANGL. DEV. = -20.8 DEGREES          
REMARK 500     DA B 207   O4' -  C1' -  N9  ANGL. DEV. =   3.2 DEGREES          
REMARK 500     DC B 208   O4' -  C4' -  C3' ANGL. DEV. =  -3.0 DEGREES          
REMARK 500     DC B 208   O4' -  C1' -  N1  ANGL. DEV. =   1.9 DEGREES          
REMARK 500     DC B 210   O4' -  C4' -  C3' ANGL. DEV. =  -2.9 DEGREES          
REMARK 500     DC B 210   O4' -  C1' -  N1  ANGL. DEV. =   2.3 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SR A 1                    
DBREF  3SD8 A  101   110  PDB    3SD8     3SD8           101    110             
DBREF  3SD8 B  201   210  PDB    3SD8     3SD8           201    210             
SEQRES   1 A   10   DG  DC  DG  DT  DA F4H  DA  DC  DG  DC                      
SEQRES   1 B   10   DG  DC  DG  DT  DA F4H  DA  DC  DG  DC                      
MODRES 3SD8 F4H A  106   DT                                                     
MODRES 3SD8 F4H B  206   DT                                                     
HET    F4H  A 106      22                                                       
HET    F4H  B 206      22                                                       
HET     SR  A   1       1                                                       
HETNAM     F4H 1,5-ANHYDRO-2,3-DIDEOXY-3-FLUORO-2-(5-METHYL-2,4-DIOXO-          
HETNAM   2 F4H  3,4-DIHYDROPYRIMIDIN-1(2H)-YL)-6-O-PHOSPHONO-D-                 
HETNAM   3 F4H  MANNITOL                                                        
HETNAM      SR STRONTIUM ION                                                    
FORMUL   1  F4H    2(C11 H16 F N2 O8 P)                                         
FORMUL   3   SR    SR 2+                                                        
FORMUL   4  HOH   *29(H2 O)                                                     
LINK         O3'  DA A 105                 P   F4H A 106     1555   1555  1.59  
LINK         O4' F4H A 106                 P    DA A 107     1555   1555  1.63  
LINK         O3'  DA B 205                 P   F4H B 206     1555   1555  1.60  
LINK         O4' F4H B 206                 P    DA B 207     1555   1555  1.57  
SITE     1 AC1  1 HOH A  20                                                     
CRYST1   28.003   42.855   45.833  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      0.035710  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023335  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021818        0.00000