HEADER    RNA BINDING PROTEIN/RNA                 03-MAY-10   3MUV              
TITLE     CRYSTAL STRUCTURE OF THE G20A/C92U MUTANT C-DI-GMP RIBOSWITH BOUND TO 
TITLE    2 C-DI-AMP                                                             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A;                      
COMPND   3 CHAIN: P;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 1-98;                                         
COMPND   5 SYNONYM: U1 SNRNP A, U1-A, U1A;                                      
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES;                                                       
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: G20A/C92U MUTANT C-DI-GMP RIBOSWITCH;                      
COMPND  10 CHAIN: R;                                                            
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: SNRPA;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET11;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 SYNTHETIC: YES;                                                      
SOURCE  13 OTHER_DETAILS: IN VITRO TRANSCRIBED FROM LINEAR DNA                  
KEYWDS    RNA, RIBOSWITCH, C-DI-AMP, C-DI-GMP, RNA BINDING PROTEIN-RNA COMPLEX  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.A.STROBEL,K.D.SMITH                                                 
REVDAT   3   06-SEP-23 3MUV    1       COMPND REMARK SEQADV HETNAM              
REVDAT   3 2                   1       LINK                                     
REVDAT   2   22-SEP-10 3MUV    1       JRNL                                     
REVDAT   1   25-AUG-10 3MUV    0                                                
JRNL        AUTH   K.D.SMITH,S.V.LIPCHOCK,A.L.LIVINGSTON,C.A.SHANAHAN,          
JRNL        AUTH 2 S.A.STROBEL                                                  
JRNL        TITL   STRUCTURAL AND BIOCHEMICAL DETERMINANTS OF LIGAND BINDING BY 
JRNL        TITL 2 THE C-DI-GMP RIBOSWITCH .                                    
JRNL        REF    BIOCHEMISTRY                  V.  49  7351 2010              
JRNL        REFN                   ISSN 0006-2960                               
JRNL        PMID   20690679                                                     
JRNL        DOI    10.1021/BI100671E                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0102                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.65                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 90.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 4829                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.190                           
REMARK   3   R VALUE            (WORKING SET) : 0.187                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 244                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : NULL                         
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.28                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 65.45                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2680                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 13                           
REMARK   3   BIN FREE R VALUE                    : 0.2920                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 734                                     
REMARK   3   NUCLEIC ACID ATOMS       : 1960                                    
REMARK   3   HETEROGEN ATOMS          : 45                                      
REMARK   3   SOLVENT ATOMS            : 16                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 41.09                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 2.40000                                              
REMARK   3    B22 (A**2) : -4.90000                                             
REMARK   3    B33 (A**2) : 3.17000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 3.54000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : NULL                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : NULL                          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  NULL ; 0.005 ;  NULL       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  NULL ; 1.112 ;  NULL       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):  NULL ; 4.579 ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  NULL ; 0.054 ;  NULL       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  NULL ; 0.002 ;  NULL       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   P     7        P    93                          
REMARK   3    ORIGIN FOR THE GROUP (A):   5.5613  -5.3844  37.4749              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0147 T22:   0.0757                                     
REMARK   3      T33:   0.0440 T12:  -0.0044                                     
REMARK   3      T13:  -0.0097 T23:  -0.0022                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   4.0414 L22:   8.3473                                     
REMARK   3      L33:   5.9636 L12:  -0.9426                                     
REMARK   3      L13:  -1.8201 L23:   1.5089                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.1627 S12:   0.0304 S13:   0.1401                       
REMARK   3      S21:  -0.2249 S22:  -0.1741 S23:   0.5480                       
REMARK   3      S31:   0.1029 S32:  -0.0867 S33:   0.0113                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   R     8        R    98                          
REMARK   3    ORIGIN FOR THE GROUP (A):   8.2087 -26.0341   0.2245              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1123 T22:   0.0898                                     
REMARK   3      T33:   0.0837 T12:  -0.0616                                     
REMARK   3      T13:   0.0478 T23:  -0.0165                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.7297 L22:   1.4576                                     
REMARK   3      L33:   1.8520 L12:  -0.6927                                     
REMARK   3      L13:  -0.5621 L23:   0.4506                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.1200 S12:   0.1446 S13:   0.1799                       
REMARK   3      S21:  -0.0343 S22:   0.0062 S23:  -0.3486                       
REMARK   3      S31:  -0.1627 S32:   0.2590 S33:  -0.1262                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : NULL                                          
REMARK   3   ION PROBE RADIUS   : NULL                                          
REMARK   3   SHRINKAGE RADIUS   : NULL                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 3MUV COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 11-MAY-10.                  
REMARK 100 THE DEPOSITION ID IS D_1000059022.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 19-NOV-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X25                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : SI-111 DOUBLE CRYSTAL              
REMARK 200  OPTICS                         : PT-COATED MIRROR                   
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 315                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : HKL-2000                           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 4829                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 80.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 90.0                               
REMARK 200  DATA REDUNDANCY                : 3.200                              
REMARK 200  R MERGE                    (I) : 0.19700                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.6000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.30                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 63.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33300                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 3IRW                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 39.93                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.05                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 25% PEG 550 MME, 5 MM MGSO4, 50 MM       
REMARK 280  MES, PH 6.0, 300 MM NACL, VAPOR DIFFUSION, HANGING DROP,            
REMARK 280  TEMPERATURE 298K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       22.94900            
REMARK 290   SMTRY3   2  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 2450 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18690 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -15.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: P, R                                  
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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     MET P     1                                                      
REMARK 465     ALA P     2                                                      
REMARK 465     VAL P     3                                                      
REMARK 465     PRO P     4                                                      
REMARK 465     GLU P     5                                                      
REMARK 465     THR P     6                                                      
REMARK 465     MET P    97                                                      
REMARK 465     LYS P    98                                                      
REMARK 465       G R    98                                                      
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      A R  20   C3' -  C2' -  C1' ANGL. DEV. =  -5.0 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ALA P  95        5.37    -66.98                                   
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                              MG R 670  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HOH R 710   O                                                      
REMARK 620 2 HOH R 711   O   179.7                                              
REMARK 620 3 HOH R 712   O    91.1  88.8                                        
REMARK 620 4 HOH R 713   O    89.1  91.0 179.7                                  
REMARK 620 5 HOH R 714   O    89.5  90.2  90.1  90.1                            
REMARK 620 6 HOH R 715   O    90.2  90.0  90.1  89.7 179.7                      
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 2BA R 358                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG R 670                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3MUM   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE G20A MUTANT C-DI-GMP RIBOSWITH BOUND TO C-DI-GMP    
REMARK 900 RELATED ID: 3MUR   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE C92U MUTANT C-DI-GMP RIBOSWITH BOUND TO C-DI-GMP    
REMARK 900 RELATED ID: 3MUT   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF THE G20A/C92U MUTANT C-DI-GMP RIBOSWITH BOUND TO C-DI-  
REMARK 900 GMP                                                                  
REMARK 900 RELATED ID: 3MXH   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF A C-DI-GMP RIBOSWITCH FROM V. CHOLERAE BOUND TO NATIVE  
REMARK 900 METALS                                                               
REMARK 900 RELATED ID: 3IRW   RELATED DB: PDB                                   
REMARK 900 THE ORIGINAL REPORT OF THE STRUCTURE OF THIS RIBOSWITCH (WILD-TYPE)  
DBREF  3MUV P    1    98  UNP    P09012   SNRPA_HUMAN      1     98             
DBREF  3MUV R    8    98  PDB    3MUV     3MUV             8     98             
SEQADV 3MUV HIS P   31  UNP  P09012    TYR    31 ENGINEERED MUTATION            
SEQADV 3MUV ARG P   36  UNP  P09012    GLN    36 ENGINEERED MUTATION            
SEQRES   1 P   98  MET ALA VAL PRO GLU THR ARG PRO ASN HIS THR ILE TYR          
SEQRES   2 P   98  ILE ASN ASN LEU ASN GLU LYS ILE LYS LYS ASP GLU LEU          
SEQRES   3 P   98  LYS LYS SER LEU HIS ALA ILE PHE SER ARG PHE GLY GLN          
SEQRES   4 P   98  ILE LEU ASP ILE LEU VAL SER ARG SER LEU LYS MET ARG          
SEQRES   5 P   98  GLY GLN ALA PHE VAL ILE PHE LYS GLU VAL SER SER ALA          
SEQRES   6 P   98  THR ASN ALA LEU ARG SER MET GLN GLY PHE PRO PHE TYR          
SEQRES   7 P   98  ASP LYS PRO MET ARG ILE GLN TYR ALA LYS THR ASP SER          
SEQRES   8 P   98  ASP ILE ILE ALA LYS MET LYS                                  
SEQRES   1 R   92  GTP   G   U   C   A   C   G   C   A   C   A   G   A          
SEQRES   2 R   92    G   C   A   A   A   C   C   A   U   U   C   G   A          
SEQRES   3 R   92    A   A   G   A   G   U   G   G   G   A   C   G   C          
SEQRES   4 R   92    A   A   A   G   C   C   U   C   C   G   G   C   C          
SEQRES   5 R   92    U   A   A   A   C   C   A   U   U   G   C   A   C          
SEQRES   6 R   92    U   C   C   G   G   U   A   G   G   U   A   G   C          
SEQRES   7 R   92    G   G   G   G   U   U   A   U   C   G   A   U   G          
SEQRES   8 R   92    G                                                          
MODRES 3MUV GTP R    8    G  GUANOSINE-5'-TRIPHOSPHATE                          
HET    GTP  R   8      32                                                       
HET    2BA  R 358      44                                                       
HET     MG  R 670       1                                                       
HETNAM     GTP GUANOSINE-5'-TRIPHOSPHATE                                        
HETNAM     2BA (2R,3R,3AS,5R,7AR,9R,10R,10AS,12R,14AR)-2,9-BIS(6-               
HETNAM   2 2BA  AMINO-9H-PURIN-9-YL)OCTAHYDRO-2H,7H-DIFURO[3,2-D:3',            
HETNAM   3 2BA  2'-J][1,3,7,9,2,8 ]TETRAOXADIPHOSPHACYCLODODECINE-3,5,          
HETNAM   4 2BA  10,12-TETROL 5,12-DIOXIDE                                       
HETNAM      MG MAGNESIUM ION                                                    
HETSYN     2BA BIS-(3',5')-CYCLIC-DIMERIC-ADENOSINE-MONOPHOSPHATE               
FORMUL   2  GTP    C10 H16 N5 O14 P3                                            
FORMUL   3  2BA    C20 H24 N10 O12 P2                                           
FORMUL   4   MG    MG 2+                                                        
FORMUL   5  HOH   *16(H2 O)                                                     
HELIX    1   1 LYS P   22  SER P   35  1                                  14    
HELIX    2   2 ARG P   36  GLY P   38  5                                   3    
HELIX    3   3 SER P   48  ARG P   52  5                                   5    
HELIX    4   4 GLU P   61  MET P   72  1                                  12    
SHEET    1   A 4 ILE P  40  LEU P  44  0                                        
SHEET    2   A 4 GLN P  54  PHE P  59 -1  O  PHE P  56   N  LEU P  44           
SHEET    3   A 4 THR P  11  ASN P  15 -1  N  ILE P  14   O  ALA P  55           
SHEET    4   A 4 ARG P  83  TYR P  86 -1  O  GLN P  85   N  TYR P  13           
SHEET    1   B 2 PRO P  76  PHE P  77  0                                        
SHEET    2   B 2 LYS P  80  PRO P  81 -1  O  LYS P  80   N  PHE P  77           
LINK         O3' GTP R   8                 P     G R   9     1555   1555  1.61  
LINK        MG    MG R 670                 O   HOH R 710     1555   1555  2.18  
LINK        MG    MG R 670                 O   HOH R 711     1555   1555  2.18  
LINK        MG    MG R 670                 O   HOH R 712     1555   1555  2.18  
LINK        MG    MG R 670                 O   HOH R 713     1555   1555  2.18  
LINK        MG    MG R 670                 O   HOH R 714     1555   1555  2.18  
LINK        MG    MG R 670                 O   HOH R 715     1555   1555  2.18  
SITE     1 AC1 10   G R  14    A R  16    C R  17    A R  20                    
SITE     2 AC1 10   G R  21    C R  46    A R  47    U R  92                    
SITE     3 AC1 10   C R  93  HOH R 711                                          
SITE     1 AC2  6 HOH R 710  HOH R 711  HOH R 712  HOH R 713                    
SITE     2 AC2  6 HOH R 714  HOH R 715                                          
CRYST1   48.870   45.898   75.696  90.00  95.48  90.00 P 1 21 1      2          
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      0.020462  0.000000  0.001963        0.00000                         
SCALE2      0.000000  0.021787  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013271        0.00000