HEADER    RNA                                     20-MAR-09   3GOT              
TITLE     GUANINE RIBOSWITCH C74U MUTANT BOUND TO 2-FLUOROADENINE.              
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: GUANINE RIBOSWITCH;                                        
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: THIS SEQUENCE WAS ENGINEERED BASED ON THE GUANINE     
SOURCE   4 RIBOSWITCH IN THE 5'UTR OF THE XPT-PBUX GENE IN BACILLUS SUBTILIS    
KEYWDS    RIBOSWITCH, MRNA, GUANINE, RNA-LIGAND COMPLEX, DOUBLE HELIX, BASE     
KEYWDS   2 TRIPLE, THREE-WAY JUNCTION, RNA                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.D.GILBERT,F.E.REYES,R.T.BATEY                                       
REVDAT   2   21-FEB-24 3GOT    1       REMARK                                   
REVDAT   1   23-JUN-09 3GOT    0                                                
JRNL        AUTH   S.D.GILBERT,F.E.REYES,A.L.EDWARDS,R.T.BATEY                  
JRNL        TITL   ADAPTIVE LIGAND BINDING BY THE PURINE RIBOSWITCH IN THE      
JRNL        TITL 2 RECOGNITION OF GUANINE AND ADENINE ANALOGS                   
JRNL        REF    STRUCTURE                     V.  17   857 2009              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   19523903                                                     
JRNL        DOI    10.1016/J.STR.2009.04.009                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.95 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS                                                  
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.95                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.98                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 768357.280                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 13630                          
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 SET) : 0.218                           
REMARK   3   FREE R VALUE                     : 0.268                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 7.500                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1020                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.008                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.95                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.07                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 85.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1858                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3120                       
REMARK   3   BIN FREE R VALUE                    : 0.3500                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 7.20                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 144                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.029                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 1422                                    
REMARK   3   HETEROGEN ATOMS          : 92                                      
REMARK   3   SOLVENT ATOMS            : 202                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 29.20                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 39.80                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.87000                                              
REMARK   3    B22 (A**2) : -1.81000                                             
REMARK   3    B33 (A**2) : 0.94000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 4.26000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.29                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.26                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.39                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.26                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.013                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.600                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 20.70                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.900                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.45                                                 
REMARK   3   BSOL        : 65.83                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : COHEX_REP.PARAM                                
REMARK   3  PARAMETER FILE  2  : DNA-RNA_REP_REVISE.PARAM                       
REMARK   3  PARAMETER FILE  3  : 2FA.PARAM                                      
REMARK   3  PARAMETER FILE  4  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  5  : ACETATE.PARAM                                  
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : WATER_REP.TOP                                  
REMARK   3  TOPOLOGY FILE  2   : DNA-RNA_REP_REVISE.TOP                         
REMARK   3  TOPOLOGY FILE  3   : ACETATE.PARAM                                  
REMARK   3  TOPOLOGY FILE  4   : COHEX_REP.TOP                                  
REMARK   3  TOPOLOGY FILE  5   : 2FA.TOP                                        
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED                   
REMARK   4                                                                      
REMARK   4 3GOT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-APR-09.                  
REMARK 100 THE DEPOSITION ID IS D_1000052128.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-FEB-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU                             
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : NI FILTER                          
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                    
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR                       
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13662                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.950                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 3.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.6                               
REMARK 200  DATA REDUNDANCY                : 3.580                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05900                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 10.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.95                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.02                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : NULL                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.21                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.31500                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.64                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 22.5 % PEG 2K, 560 MM AMMONIUM           
REMARK 280  ACETATE, 12 MM COBALT HEXAMMINE, 10 MM K+ HEPES, PH 7.5, VAPOR      
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
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        0.00000            
REMARK 290   SMTRY2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       66.22750            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       17.54200            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       66.22750            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       17.54200            
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: MONOMERIC                         
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 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      U A  36   N1      U A  36   C2      0.056                       
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      U A  25   O5' -  P   -  OP2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500      C A  39   O5' -  P   -  OP2 ANGL. DEV. = -12.2 DEGREES          
REMARK 500      C A  39   C5' -  C4' -  C3' ANGL. DEV. =  12.7 DEGREES          
REMARK 500      C A  54   C5' -  C4' -  C3' ANGL. DEV. =  15.1 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500      U A  34         0.10    SIDE CHAIN                              
REMARK 500      G A  38         0.08    SIDE CHAIN                              
REMARK 500      G A  55         0.05    SIDE CHAIN                              
REMARK 500      A A  64         0.06    SIDE CHAIN                              
REMARK 500      C A  70         0.07    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE A2F A 91                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 96                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 101                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 102                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 103                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 104                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 105                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 106                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 107                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 108                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 109                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 111                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NCO A 112                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1U8D   RELATED DB: PDB                                   
REMARK 900 GUANINE RIBOSWITCH BOUND TO HYPOXANTHINE.                            
REMARK 900 RELATED ID: 2EET   RELATED DB: PDB                                   
REMARK 900 GUANINE RIBOSWITCH A21G,U75C MUTANT BOUND TO HYPOXANTHINE            
REMARK 900 RELATED ID: 3GOG   RELATED DB: PDB                                   
REMARK 900 GUANINE RIBOSWITCH A21G,U75C BOUND TO HYPOXANTHINE                   
DBREF  3GOT A   15    81  PDB    3GOT     3GOT            15     81             
SEQRES   1 A   67    G   G   A   C   A   U   A   U   A   A   U   C   G          
SEQRES   2 A   67    C   G   U   G   G   A   U   A   U   G   G   C   A          
SEQRES   3 A   67    C   G   C   A   A   G   U   U   U   C   U   A   C          
SEQRES   4 A   67    C   G   G   G   C   A   C   C   G   U   A   A   A          
SEQRES   5 A   67    U   G   U   C   C   G   A   U   U   A   U   G   U          
SEQRES   6 A   67    C   C                                                      
HET    A2F  A  91      11                                                       
HET    ACT  A  96       4                                                       
HET    NCO  A 101       7                                                       
HET    NCO  A 102       7                                                       
HET    NCO  A 103       7                                                       
HET    NCO  A 104       7                                                       
HET    NCO  A 105       7                                                       
HET    NCO  A 106       7                                                       
HET    NCO  A 107       7                                                       
HET    NCO  A 108       7                                                       
HET    NCO  A 109       7                                                       
HET    NCO  A 111       7                                                       
HET    NCO  A 112       7                                                       
HETNAM     A2F 2-FLUOROADENINE                                                  
HETNAM     ACT ACETATE ION                                                      
HETNAM     NCO COBALT HEXAMMINE(III)                                            
HETSYN     A2F 2-FLUORO-7H-PURIN-6-AMINE                                        
FORMUL   2  A2F    C5 H4 F N5                                                   
FORMUL   3  ACT    C2 H3 O2 1-                                                  
FORMUL   4  NCO    11(CO H18 N6 3+)                                             
FORMUL  15  HOH   *202(H2 O)                                                    
SITE     1 AC1  9   A A  21    U A  22    U A  47    U A  51                    
SITE     2 AC1  9   A A  52    A A  73    U A  74    U A  75                    
SITE     3 AC1  9 HOH A 452                                                     
SITE     1 AC2  5   G A  32    A A  33    G A  38    C A  39                    
SITE     2 AC2  5   U A  67                                                     
SITE     1 AC3  9   G A  29    U A  30    A A  66    U A  67                    
SITE     2 AC3  9 HOH A 328  HOH A 332  HOH A 437  HOH A 465                    
SITE     3 AC3  9 HOH A 473                                                     
SITE     1 AC4 11   G A  38    C A  39    G A  56    G A  57                    
SITE     2 AC4 11   C A  58  HOH A 310  HOH A 396  HOH A 424                    
SITE     3 AC4 11 HOH A 431  HOH A 441  HOH A 451                               
SITE     1 AC5 11   C A  39    G A  55    G A  56    G A  57                    
SITE     2 AC5 11   G A  68    U A  69  HOH A 309  HOH A 390                    
SITE     3 AC5 11 HOH A 446  HOH A 474  HOH A 500                               
SITE     1 AC6  9   U A  30    G A  31    G A  32    A A  65                    
SITE     2 AC6  9   A A  66  NCO A 106  HOH A 306  HOH A 326                    
SITE     3 AC6  9 HOH A 408                                                     
SITE     1 AC7  6   G A  37    G A  38  HOH A 312  HOH A 370                    
SITE     2 AC7  6 HOH A 450  HOH A 459                                          
SITE     1 AC8 12   C A  26    G A  29    U A  30    A A  66                    
SITE     2 AC8 12 NCO A 104  HOH A 321  HOH A 326  HOH A 342                    
SITE     3 AC8 12 HOH A 373  HOH A 389  HOH A 462  HOH A 485                    
SITE     1 AC9  6   C A  41    G A  42    C A  53    C A  54                    
SITE     2 AC9  6 HOH A 314  HOH A 351                                          
SITE     1 BC1  5   G A  46    U A  47    C A  50    U A  51                    
SITE     2 BC1  5 HOH A 445                                                     
SITE     1 BC2  5   A A  24    C A  71  HOH A 315  HOH A 357                    
SITE     2 BC2  5 HOH A 419                                                     
SITE     1 BC3  7   G A  32    A A  33  HOH A 364  HOH A 387                    
SITE     2 BC3  7 HOH A 429  HOH A 496  HOH A 502                               
SITE     1 BC4  6   U A  36    G A  42    C A  43    G A  72                    
SITE     2 BC4  6   A A  73  HOH A 464                                          
CRYST1  132.455   35.084   41.891  90.00  90.10  90.00 C 1 2 1       4          
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      0.007550  0.000000  0.000013        0.00000                         
SCALE2      0.000000  0.028503  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.023872        0.00000