HEADER    DNA                                     25-JUN-07   2QEF              
TITLE     X-RAY STRUCTURE OF 7-DEAZA-DG AND Z3DU MODIFIED DUPLEX CGCGAATXCZCG   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-D(*DCP*DGP*DCP*DGP*DAP*DAP*DTP*(ZDU)P*DCP*(7GU)    
COMPND   3 P*DCP*DG)-3');                                                       
COMPND   4 CHAIN: A, B;                                                         
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 OTHER_DETAILS: DDD2+/Z10                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: THE OLIGODEOXYNUCLEOTIDE 5'-D(CGCGAATXCZCG)-3'        
SOURCE   4 (DDD2+/Z10) WAS SYNTHESIZED AND PURIFIED USING REVERSED-PHASE        
SOURCE   5 SEMIPREPARATIVE HPLC (PHENOMENEX, PHENYL-HEXYL, 5 M, 250 10.0 MM)    
SOURCE   6 EQUILIBRATED WITH 0.1 M AMMONIUM FORMATE (PH 7.0) AND DESALTED USING 
SOURCE   7 G25 COLUMN.                                                          
KEYWDS    B-DNA, Z3DU, 7-DEAZA-DG, DNA                                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    F.WANG,F.LI,M.GANGULY,L.A.MARKY,B.GOLD,M.EGLI,M.P.STONE               
REVDAT   4   30-AUG-23 2QEF    1       LINK                                     
REVDAT   3   24-FEB-09 2QEF    1       VERSN                                    
REVDAT   2   14-OCT-08 2QEF    1       JRNL                                     
REVDAT   1   06-MAY-08 2QEF    0                                                
JRNL        AUTH   F.WANG,F.LI,M.GANGULY,L.A.MARKY,B.GOLD,M.EGLI,M.P.STONE      
JRNL        TITL   A BRIDGING WATER ANCHORS THE TETHERED                        
JRNL        TITL 2 5-(3-AMINOPROPYL)-2'-DEOXYURIDINE AMINE IN THE DNA MAJOR     
JRNL        TITL 3 GROOVE PROXIMATE TO THE N+2 C.G BASE PAIR: IMPLICATIONS FOR  
JRNL        TITL 4 FORMATION OF INTERSTRAND 5'-GNC-3' CROSS-LINKS BY NITROGEN   
JRNL        TITL 5 MUSTARDS.                                                    
JRNL        REF    BIOCHEMISTRY                  V.  47  7147 2008              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   18549246                                                     
JRNL        DOI    10.1021/BI800375M                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
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) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 34.94                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 93.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 8368                           
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) : 0.181                           
REMARK   3   R VALUE            (WORKING SET) : 0.181                           
REMARK   3   FREE R VALUE                     : 0.231                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.600                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 497                             
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) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 336                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 52.94                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1620                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 24                           
REMARK   3   BIN FREE R VALUE                    : 0.2300                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 492                                     
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 96                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 29.31                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 1.23000                                              
REMARK   3    B22 (A**2) : -0.44000                                             
REMARK   3    B33 (A**2) : -0.79000                                             
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): 0.134         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.103         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.067         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.317         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.965                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.953                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):   546 ; 0.006 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):   238 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):   822 ; 1.596 ; 3.000       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):   596 ; 1.096 ; 3.000       
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):    94 ; 0.064 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   248 ; 0.024 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):    76 ; 0.526 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):   261 ; 0.251 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   189 ; 0.249 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):   128 ; 0.081 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    60 ; 0.174 ; 0.200       
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):     1 ; 0.008 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    17 ; 0.136 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     5 ; 0.180 ; 0.200       
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):   786 ; 3.735 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   822 ; 4.893 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A     1        A    12                          
REMARK   3    RESIDUE RANGE :   B     1        B    12                          
REMARK   3    ORIGIN FOR THE GROUP (A):  14.8814  20.6298   9.3648              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0089 T22:   0.0206                                     
REMARK   3      T33:   0.0072 T12:   0.0145                                     
REMARK   3      T13:   0.0131 T23:   0.0115                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0843 L22:   0.0169                                     
REMARK   3      L33:   1.7745 L12:   0.0026                                     
REMARK   3      L13:  -0.0160 L23:   0.1719                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0514 S12:  -0.0148 S13:   0.0090                       
REMARK   3      S21:  -0.0060 S22:   0.0436 S23:  -0.0145                       
REMARK   3      S31:   0.0261 S32:  -0.0591 S33:  -0.0950                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 2QEF COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-JUL-07.                  
REMARK 100 THE DEPOSITION ID IS D_1000043494.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 18-APR-07                          
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                       : 22-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1                                  
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MAR CCD 165 MM                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 8368                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 34.940                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 93.0                               
REMARK 200  DATA REDUNDANCY                : 8.500                              
REMARK 200  R MERGE                    (I) : 0.06700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.68                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 62.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.13300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: 355D                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 44.28                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.21                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: FINAL DROPLETS CONTAIN 0.6 MM            
REMARK 280  OLIGONUCLEOTIDES, 5% MPD, 20 MM SODIUM CACODYLATE, 6 MM SPERMINE    
REMARK 280  TETRAHYDROCHLORIDE, 40 MM KCL AND 10 MM MGCL2., PH 6.0, VAPOR       
REMARK 280  DIFFUSION, HANGING DROP, 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       12.42900            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       33.30750            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.52850            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       33.30750            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       12.42900            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       20.52850            
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: 3600 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 4130 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: 21.5 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: 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    43     O    HOH A    48              2.03            
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   O4' -  C1' -  N1  ANGL. DEV. =   3.6 DEGREES          
REMARK 500     DC A   9   O3' -  P   -  OP2 ANGL. DEV. =   7.5 DEGREES          
REMARK 500     DG B   4   O4' -  C1' -  N9  ANGL. DEV. =   2.5 DEGREES          
REMARK 500    7GU B  10   C3' -  O3' -  P   ANGL. DEV. =  12.4 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2QEG   RELATED DB: PDB                                   
DBREF  2QEF A    1    12  PDB    2QEF     2QEF             1     12             
DBREF  2QEF B    1    12  PDB    2QEF     2QEF             1     12             
SEQRES   1 A   12   DC  DG  DC  DG  DA  DA  DT ZDU  DC 7GU  DC  DG              
SEQRES   1 B   12   DC  DG  DC  DG  DA  DA  DT ZDU  DC 7GU  DC  DG              
MODRES 2QEF ZDU A    8   DU                                                     
MODRES 2QEF 7GU A   10   DG                                                     
MODRES 2QEF ZDU B    8   DU                                                     
MODRES 2QEF 7GU B   10   DG                                                     
HET    ZDU  A   8      23                                                       
HET    7GU  A  10      22                                                       
HET    ZDU  B   8      23                                                       
HET    7GU  B  10      22                                                       
HETNAM     ZDU 5-(3-AMINOPROPYL)-2'-DEOXYURIDINE-5'-MONOPHOSPHATE               
HETNAM     7GU 7-DEAZA-2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE                       
FORMUL   1  ZDU    2(C12 H20 N3 O8 P)                                           
FORMUL   1  7GU    2(C11 H15 N4 O7 P)                                           
FORMUL   3  HOH   *96(H2 O)                                                     
LINK         O3'  DT A   7                 P   ZDU A   8     1555   1555  1.59  
LINK         O3' ZDU A   8                 P    DC A   9     1555   1555  1.63  
LINK         O3'  DC A   9                 P   7GU A  10     1555   1555  1.59  
LINK         O3' 7GU A  10                 P    DC A  11     1555   1555  1.63  
LINK         O3'  DT B   7                 P   ZDU B   8     1555   1555  1.60  
LINK         O3' ZDU B   8                 P    DC B   9     1555   1555  1.54  
LINK         O3'  DC B   9                 P   7GU B  10     1555   1555  1.60  
LINK         O3' 7GU B  10                 P    DC B  11     1555   1555  1.65  
CRYST1   24.858   41.057   66.615  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      0.040228  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.024356  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015012        0.00000