HEADER    DNA                                     29-SEP-21   7SD7              
TITLE     [C:HG2+:T] METAL-MEDIATED DNA BASE PAIR IN A SELF-ASSEMBLING          
TITLE    2 RHOMBOHEDRAL LATTICE                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: DNA (5'-                                                   
COMPND   3 D(*GP*AP*GP*CP*AP*GP*CP*CP*TP*GP*TP*CP*TP*GP*GP*AP*CP*AP*TP*CP*A)-   
COMPND   4 3');                                                                 
COMPND   5 CHAIN: A;                                                            
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MOL_ID: 2;                                                           
COMPND   8 MOLECULE: DNA (5'-D(P*CP*CP*AP*TP*AP*CP*A)-3');                      
COMPND   9 CHAIN: B;                                                            
COMPND  10 ENGINEERED: YES;                                                     
COMPND  11 MOL_ID: 3;                                                           
COMPND  12 MOLECULE: DNA (5'-D(P*GP*GP*CP*TP*GP*C)-3');                         
COMPND  13 CHAIN: C;                                                            
COMPND  14 ENGINEERED: YES;                                                     
COMPND  15 MOL_ID: 4;                                                           
COMPND  16 MOLECULE: DNA (5'-D(*TP*CP*TP*GP*AP*TP*GP*T)-3');                    
COMPND  17 CHAIN: D;                                                            
COMPND  18 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE   4 ORGANISM_TAXID: 32630;                                               
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 SYNTHETIC: YES;                                                      
SOURCE   7 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE   8 ORGANISM_TAXID: 32630;                                               
SOURCE   9 MOL_ID: 3;                                                           
SOURCE  10 SYNTHETIC: YES;                                                      
SOURCE  11 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  12 ORGANISM_TAXID: 32630;                                               
SOURCE  13 MOL_ID: 4;                                                           
SOURCE  14 SYNTHETIC: YES;                                                      
SOURCE  15 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE  16 ORGANISM_TAXID: 32630                                                
KEYWDS    TENSEGRITY TRIANGLE, SELF-ASSEMBLING CRYSTAL, METAL-MEDIATED          
KEYWDS   2 MISMATCH, DNA                                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.VECCHIONI,B.LU,N.C.SEEMAN,R.SHA,Y.P.OHAYON                          
REVDAT   3   22-MAY-24 7SD7    1       REMARK                                   
REVDAT   2   05-APR-23 7SD7    1       JRNL                                     
REVDAT   1   05-OCT-22 7SD7    0                                                
JRNL        AUTH   S.VECCHIONI,B.LU,W.LIVERNOIS,Y.P.OHAYON,J.B.YODER,C.F.YANG,  
JRNL        AUTH 2 K.WOLOSZYN,W.BERNFELD,M.P.ANANTRAM,J.W.CANARY,               
JRNL        AUTH 3 W.A.HENDRICKSON,L.J.ROTHSCHILD,C.MAO,S.J.WIND,N.C.SEEMAN,    
JRNL        AUTH 4 R.SHA                                                        
JRNL        TITL   METAL-MEDIATED DNA NANOTECHNOLOGY IN 3D: STRUCTURAL LIBRARY  
JRNL        TITL 2 BY TEMPLATED DIFFRACTION.                                    
JRNL        REF    ADV MATER                            01938 2023              
JRNL        REFN                   ISSN 1521-4095                               
JRNL        PMID   36939292                                                     
JRNL        DOI    10.1002/ADMA.202201938                                       
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.68 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.18.2_3874                                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : GEOSTD + MONOMER LIBRARY + CDL V1.2           
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.68                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 32.22                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.910                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 71.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 2815                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.225                           
REMARK   3   R VALUE            (WORKING SET) : 0.223                           
REMARK   3   FREE R VALUE                     : 0.275                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.570                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 262                             
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 32.2200 -  4.6400    0.97     1844   202  0.2106 0.2667        
REMARK   3     2  4.6400 -  3.6800    0.46     1780    60  0.4281 0.5463        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.382            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 48.111           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 282.2                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 301.2                          
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.007            953                                  
REMARK   3   ANGLE     :  1.038           1462                                  
REMARK   3   CHIRALITY :  0.053            166                                  
REMARK   3   PLANARITY :  0.006             42                                  
REMARK   3   DIHEDRAL  : 39.608            406                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 4                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: (CHAIN 'A' AND RESID 101 THROUGH 121)                  
REMARK   3    ORIGIN FOR THE GROUP (A): -15.0226  -3.5771  21.3172              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   3.4592 T22:   2.8048                                     
REMARK   3      T33:   2.3560 T12:   0.1163                                     
REMARK   3      T13:   0.1564 T23:   0.0866                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   5.2274 L22:   5.0781                                     
REMARK   3      L33:   0.8637 L12:  -0.0528                                     
REMARK   3      L13:   0.4940 L23:  -2.0742                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.4935 S12:   0.3610 S13:  -0.3752                       
REMARK   3      S21:   1.7069 S22:   2.8330 S23:   2.1453                       
REMARK   3      S31:  -0.5247 S32:  -1.4421 S33:  -2.7833                       
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: (CHAIN 'B' AND RESID 119 THROUGH 125)                  
REMARK   3    ORIGIN FOR THE GROUP (A): -14.3852   0.3585  20.3291              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   2.6471 T22:   3.5176                                     
REMARK   3      T33:   2.1902 T12:  -0.3037                                     
REMARK   3      T13:  -0.5587 T23:   0.8694                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   2.6268 L22:   8.7118                                     
REMARK   3      L33:   1.8802 L12:   2.9959                                     
REMARK   3      L13:  -2.0557 L23:  -1.4913                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   1.3506 S12:   5.2105 S13:   1.7787                       
REMARK   3      S21:   0.7185 S22:   0.0604 S23:   2.3568                       
REMARK   3      S31:   0.0877 S32:  -0.8309 S33:  -1.5299                       
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    SELECTION: (CHAIN 'C' AND RESID 209 THROUGH 214)                  
REMARK   3    ORIGIN FOR THE GROUP (A): -16.5127 -19.4551  31.7247              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   3.8545 T22:   2.6466                                     
REMARK   3      T33:   3.5426 T12:   0.4993                                     
REMARK   3      T13:   0.7696 T23:   0.4557                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   5.0934 L22:   3.0185                                     
REMARK   3      L33:   4.1192 L12:   3.8791                                     
REMARK   3      L13:  -4.2560 L23:  -3.4541                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -4.0838 S12:  -3.6271 S13:  -0.7500                       
REMARK   3      S21:  -1.6023 S22:   1.9771 S23:   5.1208                       
REMARK   3      S31:   0.3745 S32:   1.1730 S33:   1.2634                       
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    SELECTION: (CHAIN 'D' AND RESID 101 THROUGH 108)                  
REMARK   3    ORIGIN FOR THE GROUP (A): -12.7008  19.5136   5.9426              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   3.5551 T22:   3.0657                                     
REMARK   3      T33:   3.3944 T12:   0.0558                                     
REMARK   3      T13:   0.3204 T23:   0.9499                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.9953 L22:   7.3194                                     
REMARK   3      L33:   1.5677 L12:   6.1032                                     
REMARK   3      L13:  -3.3038 L23:  -3.3425                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -4.2815 S12:   6.1146 S13:  -0.0501                       
REMARK   3      S21:  -7.6924 S22:   0.3316 S23:  -4.1034                       
REMARK   3      S31:   1.0556 S32:  -0.8425 S33:   1.4532                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 7SD7 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 04-OCT-21.                  
REMARK 100 THE DEPOSITION ID IS D_1000259455.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-AUG-20                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 17-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00743                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS EIGER2 X 9M                
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : AUTOPROC                           
REMARK 200  DATA SCALING SOFTWARE          : STARANISO                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 2953                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.599                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 63.805                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 87.0                               
REMARK 200  DATA REDUNDANCY                : 10.50                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.6000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.87                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 54.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 7.80                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 35.70                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: AUTOSOL                                               
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: RHOMBOHEDRAL                                                 
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): NULL                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 7.48                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: MOPS, MAGNESIUM SULFATE, MERCURY         
REMARK 280  CHLORIDE, PH 7.8, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       5555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       6555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290       7555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290       8555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290       9555   -X+Y+1/3,-X+2/3,Z+2/3                                   
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        0.00000            
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        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       52.79350            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       30.48034            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       29.69467            
REMARK 290   SMTRY1   5 -0.500000 -0.866025  0.000000       52.79350            
REMARK 290   SMTRY2   5  0.866025 -0.500000  0.000000       30.48034            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       29.69467            
REMARK 290   SMTRY1   6 -0.500000  0.866025  0.000000       52.79350            
REMARK 290   SMTRY2   6 -0.866025 -0.500000  0.000000       30.48034            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       29.69467            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       60.96068            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       59.38933            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       60.96068            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       59.38933            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       60.96068            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       59.38933            
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: DODECAMERIC                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                            
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        0.00000            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
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     DA A 102   O4' -  C1' -  N9  ANGL. DEV. =   4.5 DEGREES          
REMARK 500     DG A 103   O4' -  C1' -  N9  ANGL. DEV. =   2.0 DEGREES          
REMARK 500     DC A 107   O4' -  C1' -  N1  ANGL. DEV. =   2.0 DEGREES          
REMARK 500     DC D 102   O4' -  C1' -  N1  ANGL. DEV. =   2.1 DEGREES          
REMARK 500     DT D 103   O4' -  C1' -  N1  ANGL. DEV. =   2.1 DEGREES          
REMARK 500     DG D 104   O4' -  C1' -  N9  ANGL. DEV. =   2.7 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              HG B 201  HG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  DC A 112   N3                                                     
REMARK 620 2  DC A 112   N4   55.0                                              
REMARK 620 3  DT B 122   O2  116.9 154.7                                        
REMARK 620 4  DT B 122   N3  162.2 141.5  45.5                                  
REMARK 620 5  DT B 122   O4  147.4  96.9  95.5  50.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 7SD6   RELATED DB: PDB                                   
REMARK 900 7SD6 CONTAINS A DIFFERENT BASE PAIR IN THE SAME MOTIF.               
DBREF  7SD7 A  101   121  PDB    7SD7     7SD7           101    121             
DBREF  7SD7 B  119   125  PDB    7SD7     7SD7           119    125             
DBREF  7SD7 C  209   214  PDB    7SD7     7SD7           209    214             
DBREF  7SD7 D  101   108  PDB    7SD7     7SD7           101    108             
SEQRES   1 A   21   DG  DA  DG  DC  DA  DG  DC  DC  DT  DG  DT  DC  DT          
SEQRES   2 A   21   DG  DG  DA  DC  DA  DT  DC  DA                              
SEQRES   1 B    7   DC  DC  DA  DT  DA  DC  DA                                  
SEQRES   1 C    6   DG  DG  DC  DT  DG  DC                                      
SEQRES   1 D    8   DT  DC  DT  DG  DA  DT  DG  DT                              
HET     HG  B 201       1                                                       
HETNAM      HG MERCURY (II) ION                                                 
FORMUL   5   HG    HG 2+                                                        
LINK         N3   DC A 112                HG    HG B 201     1555   1555  2.11  
LINK         N4   DC A 112                HG    HG B 201     1555   1555  2.72  
LINK         O2   DT B 122                HG    HG B 201     1555   1555  3.18  
LINK         N3   DT B 122                HG    HG B 201     1555   1555  2.09  
LINK         O4   DT B 122                HG    HG B 201     1555   1555  2.98  
CRYST1  105.587  105.587   89.084  90.00  90.00 120.00 H 3           9          
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      0.009471  0.005468  0.000000        0.00000                         
SCALE2      0.000000  0.010936  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011225        0.00000