HEADER    DNA                                     10-FEB-93   116D              
TITLE     CRYSTAL AND MOLECULAR STRUCTURE OF THE A-DNA DODECAMER                
TITLE    2 D(CCGTACGTACGG): CHOICE OF FRAGMENT HELICAL AXIS                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-D(*CP*CP*GP*TP*AP*CP*GP*TP*AP*CP*GP*G)-3');        
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES                                                       
KEYWDS    A-DNA, DOUBLE HELIX, DNA                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.A.BINGMAN,G.ZON,M.SUNDARALINGAM                                     
REVDAT   4   07-FEB-24 116D    1       REMARK                                   
REVDAT   3   24-FEB-09 116D    1       VERSN                                    
REVDAT   2   01-APR-03 116D    1       JRNL                                     
REVDAT   1   15-APR-93 116D    0                                                
JRNL        AUTH   C.A.BINGMAN,G.ZON,M.SUNDARALINGAM                            
JRNL        TITL   CRYSTAL AND MOLECULAR STRUCTURE OF THE A-DNA DODECAMER       
JRNL        TITL 2 D(CCGTACGTACGG). CHOICE OF FRAGMENT HELICAL AXIS.            
JRNL        REF    J.MOL.BIOL.                   V. 227   738 1992              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   1404387                                                      
JRNL        DOI    10.1016/0022-2836(92)90221-5                                 
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   C.A.BINGMAN,S.JAIN,G.ZON,M.SUNDARALINGAM                     
REMARK   1  TITL   CRYSTAL AND MOLECULAR STRUCTURE OF THE ALTERNATING DODECAMER 
REMARK   1  TITL 2 D(GCGTACGTACGC) IN THE A-DNA FORM: COMPARISON WITH THE       
REMARK   1  TITL 3 ISOMORPHOUS NON-ALTERNATING DODECAMER D(CCGTACGTACGG)        
REMARK   1  REF    NUCLEIC ACIDS RES.            V.  20  6637 1992              
REMARK   1  REFN                   ISSN 0305-1048                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : NUCLSQ                                               
REMARK   3   AUTHORS     : WESTHOF,DUMAS,MORAS                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 8.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 1664                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.150                           
REMARK   3   R VALUE            (WORKING SET) : NULL                            
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 243                                     
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 40                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS     SIGMA              
REMARK   3    SUGAR-BASE BOND DISTANCE        (A) : 0.006 ; 0.025               
REMARK   3    SUGAR-BASE BOND ANGLE DISTANCE  (A) : 0.016 ; 0.050               
REMARK   3    PHOSPHATE BONDS DISTANCE        (A) : 0.027 ; 0.050               
REMARK   3    PHOSPHATE BOND ANGLE, H-BOND    (A) : 0.038 ; 0.075               
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.027 ; 0.040               
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.057 ; 0.100               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION CONTACT          (A) : 0.089 ; 0.090               
REMARK   3    MULTIPLE TORSION CONTACT        (A) : 0.206 ; 0.090               
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   SUGAR-BASE BONDS             (A**2) : 1.750 ; 3.000                
REMARK   3   SUGAR-BASE ANGLES            (A**2) : 2.650 ; 4.500                
REMARK   3   PHOSPHATE BONDS              (A**2) : 1.790 ; 3.000                
REMARK   3   PHOSPHATE BOND ANGLE, H-BOND (A**2) : 2.670 ; 4.500                
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 116D COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY NDB.                                
REMARK 100 THE DEPOSITION ID IS D_1000170042.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 277.00                             
REMARK 200  PH                             : 6.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : NULL                               
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : NULL                               
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : OSCILLATION CAMERA                 
REMARK 200  DETECTOR MANUFACTURER          : ENRAF-NONIUS                       
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : NULL                               
REMARK 200  DATA SCALING SOFTWARE          : NULL                               
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 1664                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.500                              
REMARK 200  RESOLUTION RANGE LOW       (A) : NULL                               
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
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) : NULL                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: NULL                                           
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: NULL                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 59.09                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.01                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.50, VAPOR DIFFUSION                 
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+5/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/6                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       23.83333            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       47.66667            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       35.75000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       59.58333            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       11.91667            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       23.83333            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000       47.66667            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       59.58333            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       35.75000            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       11.91667            
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                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2  0.500000  0.866025  0.000000      -23.10000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000       40.01037            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       11.91667            
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   3   O3'    DT A   4   P       0.074                       
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   C3' -  O3' -  P   ANGL. DEV. =  -8.0 DEGREES          
REMARK 500     DC A   2   C3' -  O3' -  P   ANGL. DEV. = -10.9 DEGREES          
REMARK 500     DG A   3   C3' -  O3' -  P   ANGL. DEV. = -10.0 DEGREES          
REMARK 500     DT A   4   O5' -  C5' -  C4' ANGL. DEV. =  -5.3 DEGREES          
REMARK 500     DT A   4   C2  -  N3  -  C4  ANGL. DEV. =  -5.3 DEGREES          
REMARK 500     DT A   4   N3  -  C4  -  C5  ANGL. DEV. =   4.8 DEGREES          
REMARK 500     DT A   4   C3' -  O3' -  P   ANGL. DEV. =  -8.4 DEGREES          
REMARK 500     DA A   5   O4' -  C1' -  N9  ANGL. DEV. =   4.5 DEGREES          
REMARK 500     DA A   5   N1  -  C6  -  N6  ANGL. DEV. =   3.7 DEGREES          
REMARK 500     DA A   5   C3' -  O3' -  P   ANGL. DEV. =  -8.8 DEGREES          
REMARK 500     DC A   6   O5' -  P   -  OP1 ANGL. DEV. =   7.3 DEGREES          
REMARK 500     DC A   6   O4' -  C1' -  N1  ANGL. DEV. =   4.9 DEGREES          
REMARK 500     DG A   7   O4' -  C1' -  N9  ANGL. DEV. =   1.8 DEGREES          
REMARK 500     DG A   7   C5  -  C6  -  N1  ANGL. DEV. =   3.0 DEGREES          
REMARK 500     DT A   8   O5' -  P   -  OP1 ANGL. DEV. =   9.8 DEGREES          
REMARK 500     DT A   8   C2  -  N3  -  C4  ANGL. DEV. =  -4.4 DEGREES          
REMARK 500     DT A   8   N3  -  C4  -  C5  ANGL. DEV. =   4.1 DEGREES          
REMARK 500     DT A   8   N3  -  C4  -  O4  ANGL. DEV. =  -5.1 DEGREES          
REMARK 500     DA A   9   OP1 -  P   -  OP2 ANGL. DEV. =  -9.8 DEGREES          
REMARK 500     DA A   9   O5' -  P   -  OP1 ANGL. DEV. =   8.1 DEGREES          
REMARK 500     DA A   9   O4' -  C1' -  N9  ANGL. DEV. =   2.8 DEGREES          
REMARK 500     DA A   9   N1  -  C2  -  N3  ANGL. DEV. =  -3.8 DEGREES          
REMARK 500     DA A   9   C3' -  O3' -  P   ANGL. DEV. =  -7.9 DEGREES          
REMARK 500     DC A  10   O5' -  P   -  OP2 ANGL. DEV. =   9.4 DEGREES          
REMARK 500     DC A  10   O4' -  C1' -  N1  ANGL. DEV. =   3.8 DEGREES          
REMARK 500     DG A  11   O5' -  C5' -  C4' ANGL. DEV. =  -5.5 DEGREES          
REMARK 500     DG A  11   C5  -  C6  -  N1  ANGL. DEV. =   3.9 DEGREES          
REMARK 500     DG A  12   O5' -  P   -  OP1 ANGL. DEV. =   9.9 DEGREES          
REMARK 500     DG A  12   O4' -  C1' -  N9  ANGL. DEV. =   2.5 DEGREES          
REMARK 500     DG A  12   C5  -  C6  -  N1  ANGL. DEV. =   3.1 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  116D A    1    12  PDB    116D     116D             1     12             
SEQRES   1 A   12   DC  DC  DG  DT  DA  DC  DG  DT  DA  DC  DG  DG              
FORMUL   2  HOH   *40(H2 O)                                                     
CRYST1   46.200   46.200   71.500  90.00  90.00 120.00 P 61 2 2     12          
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      0.021645  0.012497  0.000000        0.00000                         
SCALE2      0.000000  0.024994  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013986        0.00000