HEADER    DNA                                     27-DEC-99   1DPL              
TITLE     A-DNA DECAMER GCGTA(T23)TACGC WITH INCORPORATED 2'-METHOXY-3'-        
TITLE    2 METHYLENEPHOSPHATE-THYMIDINE                                         
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-D(*GP*CP*GP*TP*AP*(T23)P*AP*CP*GP*C)-3';                
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES                                                       
KEYWDS    MODIFIED A-DECAMER AT 0.83 A RESOLUTION, DEOXYRIBONUCLEIC ACID, DNA   
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.EGLI,V.TERESHKO,M.TEPLOVA,G.MINASOV,A.JOACHIMIAK,R.SANISHVILI,      
AUTHOR   2 C.M.WEEKS,R.MILLER,M.A.MAIER,H.AN,P.DAN COOK,M.MANOHARAN             
REVDAT   4   07-FEB-24 1DPL    1       REMARK                                   
REVDAT   3   22-JUN-22 1DPL    1       REMARK SEQRES LINK                       
REVDAT   2   24-FEB-09 1DPL    1       VERSN                                    
REVDAT   1   04-APR-00 1DPL    0                                                
JRNL        AUTH   M.EGLI,V.TERESHKO,M.TEPLOVA,G.MINASOV,A.JOACHIMIAK,          
JRNL        AUTH 2 R.SANISHVILI,C.M.WEEKS,R.MILLER,M.A.MAIER,H.AN,P.DAN COOK,   
JRNL        AUTH 3 M.MANOHARAN                                                  
JRNL        TITL   X-RAY CRYSTALLOGRAPHIC ANALYSIS OF THE HYDRATION OF A- AND   
JRNL        TITL 2 B-FORM DNA AT ATOMIC RESOLUTION.                             
JRNL        REF    BIOPOLYMERS                   V.  48   234 1998              
JRNL        REFN                   ISSN 0006-3525                               
JRNL        PMID   10699842                                                     
JRNL        DOI    10.1002/(SICI)1097-0282(1998)48:4<234::AID-BIP4>3.0.CO;2-H   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    0.83 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 0.83                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.7                           
REMARK   3   CROSS-VALIDATION METHOD           : THROUGHOUT                     
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.117                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.117                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.121                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 10.000                 
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 4742                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 47403                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : NULL                   
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : NULL                   
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    : 26                                            
REMARK   3   SOLVENT ATOMS      : 177                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : NULL                    
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : NULL                    
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL                    
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : NULL                    
REMARK   3   NUMBER OF RESTRAINTS                     : NULL                    
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.037                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.019                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : NULL                    
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : NULL                    
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : NULL                    
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : NULL                    
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : NULL                    
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : NULL                    
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : NULL                    
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : NULL                    
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: NULL                                                  
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : PARKINSON ET AL.                    
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1DPL COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-DEC-99.                  
REMARK 100 THE DEPOSITION ID IS D_1000010269.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-JUN-99                          
REMARK 200  TEMPERATURE           (KELVIN) : 120                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 5ID-B                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.800                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 47403                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 0.830                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY                : 4.800                              
REMARK 200  R MERGE                    (I) : 0.04900                            
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) : 0.83                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 0.90                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.8                               
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: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: SHELXS                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 36.17                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.93                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SPERMINE, MGCL2, NACL, KCL, SODIUM       
REMARK 280  CACODYLATE BUFFER, PH 7.0, VAPOR DIFFUSION, HANGING DROP,           
REMARK 280  TEMPERATURE 293K                                                    
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       12.31350            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       23.45300            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       21.35850            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       23.45300            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       12.31350            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       21.35850            
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: 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   1   C2'    DG A   1   C1'    -0.067                       
REMARK 500     DG A   3   C2'    DG A   3   C1'    -0.108                       
REMARK 500     DT A   4   C2'    DT A   4   C1'    -0.063                       
REMARK 500     DC B  12   C2'    DC B  12   C1'    -0.066                       
REMARK 500     DG B  19   C2'    DG B  19   C1'    -0.086                       
REMARK 500     DG B  19   O4'    DG B  19   C1'     0.099                       
REMARK 500     DG B  19   O4'    DG B  19   C1'     0.100                       
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     DG A   3   O4' -  C1' -  C2' ANGL. DEV. =   5.7 DEGREES          
REMARK 500     DG A   3   O4' -  C1' -  N9  ANGL. DEV. =  -6.3 DEGREES          
REMARK 500     DA A   7   O4' -  C1' -  N9  ANGL. DEV. =   2.8 DEGREES          
REMARK 500     DC A   8   O4' -  C4' -  C3' ANGL. DEV. =  -3.5 DEGREES          
REMARK 500     DC A   8   O4' -  C1' -  N1  ANGL. DEV. =   3.3 DEGREES          
REMARK 500     DG B  11   O4' -  C1' -  C2' ANGL. DEV. =   4.1 DEGREES          
REMARK 500     DG B  13   C4' -  C3' -  C2' ANGL. DEV. =  -4.3 DEGREES          
REMARK 500     DG B  13   O4' -  C1' -  N9  ANGL. DEV. =   3.8 DEGREES          
REMARK 500     DC B  18   O4' -  C1' -  N1  ANGL. DEV. =   2.8 DEGREES          
REMARK 500     DG B  19   P   -  O5' -  C5' ANGL. DEV. =  11.1 DEGREES          
REMARK 500     DG B  19   C5' -  C4' -  O4' ANGL. DEV. =   7.4 DEGREES          
REMARK 500     DG B  19   C1' -  O4' -  C4' ANGL. DEV. =  -8.2 DEGREES          
REMARK 500     DG B  19   C1' -  O4' -  C4' ANGL. DEV. =  -7.2 DEGREES          
REMARK 500     DG B  19   O4' -  C1' -  C2' ANGL. DEV. =   6.8 DEGREES          
REMARK 500     DG B  19   O4' -  C1' -  C2' ANGL. DEV. =   6.3 DEGREES          
REMARK 500     DG B  19   O4' -  C1' -  N9  ANGL. DEV. =  -8.6 DEGREES          
REMARK 500     DG B  19   C8  -  N9  -  C1' ANGL. DEV. =   8.8 DEGREES          
REMARK 500     DG B  19   C4  -  N9  -  C1' ANGL. DEV. =  -8.6 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 610                                                                      
REMARK 610 MISSING HETEROATOM                                                   
REMARK 610 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 610 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 610 I=INSERTION CODE):                                                   
REMARK 610   M RES C SSEQI                                                      
REMARK 610     SPM B  222                                                       
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                              MG A 301  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH A 302   O                                                      
REMARK 620 2 HOH A 305   O    91.0                                              
REMARK 620 3 HOH A 306   O    88.3  92.3                                        
REMARK 620 4 HOH A 307   O    92.6 176.5  87.7                                  
REMARK 620 5 HOH B 303   O   177.5  90.5  93.6  85.9                            
REMARK 620 6 HOH B 304   O    91.1  89.1 178.5  90.9  86.9                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B1301  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH B1302   O                                                      
REMARK 620 2 HOH B1303   O    95.8                                              
REMARK 620 3 HOH B1304   O    89.0 100.3                                        
REMARK 620 4 HOH B1305   O    93.8  85.7 173.1                                  
REMARK 620 5 HOH B1306   O   159.8  99.8 100.5  74.8                            
REMARK 620 6 HOH B1307   O    83.7 175.6  84.1  90.0  79.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SPM B 221                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SPM B 222                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 1301                 
DBREF  1DPL A    1    10  PDB    1DPL     1DPL             1     10             
DBREF  1DPL B   11    20  PDB    1DPL     1DPL            11     20             
SEQRES   1 A   10   DG  DC  DG  DT  DA T23  DA  DC  DG  DC                      
SEQRES   1 B   10   DG  DC  DG  DT  DA T23  DA  DC  DG  DC                      
HET    T23  A   6      22                                                       
HET    T23  B  16      22                                                       
HET     MG  A 301       1                                                       
HET    SPM  B 221      14                                                       
HET    SPM  B 222      10                                                       
HET     MG  B1301       1                                                       
HETNAM     T23 2'-O-METHYL-3'-METHYL-3'-DEOXY-ARABINOFURANOSYL-                 
HETNAM   2 T23  THYMINE-5'-PHOSPHATE                                            
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     SPM SPERMINE                                                         
FORMUL   1  T23    2(C12 H19 N2 O8 P)                                           
FORMUL   3   MG    2(MG 2+)                                                     
FORMUL   4  SPM    2(C10 H26 N4)                                                
FORMUL   7  HOH   *177(H2 O)                                                    
LINK         O3'  DA A   5                 P   T23 A   6     1555   1555  1.60  
LINK         C3M T23 A   6                 P    DA A   7     1555   1555  1.74  
LINK         O3'  DA B  15                 P   T23 B  16     1555   1555  1.59  
LINK         C3M T23 B  16                 P    DA B  17     1555   1555  1.74  
LINK         OP1B DG B  19                 N5  SPM B 222     1555   1555  1.80  
LINK        MG    MG A 301                 O   HOH A 302     1555   1555  2.07  
LINK        MG    MG A 301                 O   HOH A 305     1555   1555  2.11  
LINK        MG    MG A 301                 O   HOH A 306     1555   1555  2.03  
LINK        MG    MG A 301                 O   HOH A 307     1555   1555  2.09  
LINK        MG    MG A 301                 O   HOH B 303     1555   1555  2.09  
LINK        MG    MG A 301                 O   HOH B 304     1555   1555  2.05  
LINK        MG    MG B1301                 O   HOH B1302     1555   1555  2.12  
LINK        MG    MG B1301                 O   HOH B1303     1555   1555  2.05  
LINK        MG    MG B1301                 O   HOH B1304     1555   1555  1.83  
LINK        MG    MG B1301                 O   HOH B1305     1555   1555  2.04  
LINK        MG    MG B1301                 O   HOH B1306     1555   1555  2.13  
LINK        MG    MG B1301                 O   HOH B1307     1555   1555  2.14  
SITE     1 AC1 11  DG A   9  HOH A 329  HOH A 341  HOH A 358                    
SITE     2 AC1 11 HOH A 502   DG B  13   DT B  14   DC B  18                    
SITE     3 AC1 11  DG B  19  HOH B 470  HOH B1222                               
SITE     1 AC2  9 HOH A 336  HOH A 442   DG B  11   DC B  18                    
SITE     2 AC2  9  DG B  19   DC B  20  HOH B 362  HOH B 367                    
SITE     3 AC2  9 HOH B 449                                                     
SITE     1 AC3  6 HOH A 302  HOH A 305  HOH A 306  HOH A 307                    
SITE     2 AC3  6 HOH B 303  HOH B 304                                          
SITE     1 AC4  6 HOH B1302  HOH B1303  HOH B1304  HOH B1305                    
SITE     2 AC4  6 HOH B1306  HOH B1307                                          
CRYST1   24.627   42.717   46.906  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      0.040606  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023410  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.021319        0.00000