HEADER    RNA BINDING PROTEIN/RNA                 24-AUG-09   3IRW              
TITLE     STRUCTURE OF A C-DI-GMP RIBOSWITCH FROM V. CHOLERAE                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A;                      
COMPND   3 CHAIN: P;                                                            
COMPND   4 FRAGMENT: RNA BINDING DOMAIN;                                        
COMPND   5 SYNONYM: U1 SNRNP PROTEIN A, U1A PROTEIN, U1-A;                      
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 MUTATION: YES;                                                       
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: 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 ORGANISM_SCIENTIFIC: VIBRIO CHOLERAE;                                
SOURCE  14 ORGANISM_TAXID: 666;                                                 
SOURCE  15 OTHER_DETAILS: IN VITRO SYNTHESIS FROM A PLASMID DNA TEMPLATE OF     
SOURCE  16 NATURAL SEQUENCE FROM VIBRIO CHOLERAE                                
KEYWDS    RIBOSWITCH, C-DI-GMP, RNA, RNA BINDING PROTEIN-RNA COMPLEX            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.D.SMITH                                                             
REVDAT   5   21-FEB-24 3IRW    1       REMARK                                   
REVDAT   4   13-OCT-21 3IRW    1       REMARK SEQADV HETSYN LINK                
REVDAT   3   19-MAY-10 3IRW    1       HEADER SOURCE                            
REVDAT   2   15-DEC-09 3IRW    1       JRNL                                     
REVDAT   1   10-NOV-09 3IRW    0                                                
JRNL        AUTH   K.D.SMITH,S.V.LIPCHOCK,T.D.AMES,J.WANG,R.R.BREAKER,          
JRNL        AUTH 2 S.A.STROBEL                                                  
JRNL        TITL   STRUCTURAL BASIS OF LIGAND BINDING BY A C-DI-GMP RIBOSWITCH. 
JRNL        REF    NAT.STRUCT.MOL.BIOL.          V.  16  1218 2009              
JRNL        REFN                   ISSN 1545-9993                               
JRNL        PMID   19898477                                                     
JRNL        DOI    10.1038/NSMB.1702                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.70 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.4.0077                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES                
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.70                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 43.69                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 8497                           
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) : 0.199                           
REMARK   3   R VALUE            (WORKING SET) : 0.196                           
REMARK   3   FREE R VALUE                     : 0.251                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 4.900                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 439                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.70                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.77                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 477                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 72.51                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3110                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 19                           
REMARK   3   BIN FREE R VALUE                    : 0.4130                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 734                                     
REMARK   3   NUCLEIC ACID ATOMS       : 1961                                    
REMARK   3   HETEROGEN ATOMS          : 111                                     
REMARK   3   SOLVENT ATOMS            : 92                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : UNVERIFIED                                          
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 50.65                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.83000                                              
REMARK   3    B22 (A**2) : -4.89000                                             
REMARK   3    B33 (A**2) : 4.40000                                              
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 1.44000                                              
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): 0.411         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.320         
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      : 0.952                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.923                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3045 ; 0.006 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4631 ; 0.953 ; 2.776       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):    89 ; 5.686 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    34 ;27.392 ;23.235       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   150 ;14.327 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     6 ;16.926 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  NULL ;  NULL ;  NULL       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1519 ; 0.004 ; 0.020       
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):   449 ; 2.120 ; 5.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):   727 ; 3.848 ;10.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2596 ; 1.901 ; 5.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  3904 ; 3.102 ;10.000       
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  : 4                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   R     8        R    14                          
REMARK   3    RESIDUE RANGE :   R    92        R    97                          
REMARK   3    ORIGIN FOR THE GROUP (A):  18.4220 -30.6540 -11.9340              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2563 T22:   0.3514                                     
REMARK   3      T33:   0.0532 T12:   0.1455                                     
REMARK   3      T13:   0.1124 T23:   0.0379                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   9.2098 L22:   3.5636                                     
REMARK   3      L33:   0.7918 L12:  -0.4908                                     
REMARK   3      L13:  -0.8068 L23:   1.6402                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0919 S12:  -0.7027 S13:  -0.1654                       
REMARK   3      S21:  -0.0115 S22:   0.0286 S23:  -0.1136                       
REMARK   3      S31:   0.3680 S32:   0.2970 S33:  -0.1205                       
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    15        R    47                          
REMARK   3    ORIGIN FOR THE GROUP (A):   4.5290 -25.8600  -6.5500              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2047 T22:   0.1259                                     
REMARK   3      T33:   0.0709 T12:   0.0236                                     
REMARK   3      T13:  -0.0194 T23:  -0.0047                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.1305 L22:   2.0594                                     
REMARK   3      L33:   1.9843 L12:  -0.9168                                     
REMARK   3      L13:  -0.9429 L23:   0.0234                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.2826 S12:   0.0211 S13:   0.0458                       
REMARK   3      S21:  -0.2669 S22:  -0.2328 S23:  -0.0999                       
REMARK   3      S31:   0.0656 S32:   0.1520 S33:  -0.0498                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 3                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 2                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   R    48        R    91                          
REMARK   3    RESIDUE RANGE :   R   660        R   669                          
REMARK   3    ORIGIN FOR THE GROUP (A):  10.5870 -22.0700  12.3180              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.2272 T22:   0.2474                                     
REMARK   3      T33:   0.1882 T12:  -0.0777                                     
REMARK   3      T13:   0.0168 T23:  -0.0087                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.1830 L22:   0.6966                                     
REMARK   3      L33:   1.2797 L12:  -0.3101                                     
REMARK   3      L13:  -0.2750 L23:   0.8510                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0584 S12:  -0.0168 S13:   0.1455                       
REMARK   3      S21:  -0.0360 S22:   0.0024 S23:  -0.1003                       
REMARK   3      S31:   0.0043 S32:   0.0515 S33:  -0.0607                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 4                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   P     7        P    96                          
REMARK   3    ORIGIN FOR THE GROUP (A):   5.2040  -4.4590  37.5330              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.1906 T22:   0.1906                                     
REMARK   3      T33:   0.1906 T12:   0.0000                                     
REMARK   3      T13:   0.0000 T23:   0.0000                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.0000 L22:   0.0000                                     
REMARK   3      L33:   0.0000 L12:   0.0000                                     
REMARK   3      L13:   0.0000 L23:   0.0000                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0000 S12:   0.0000 S13:   0.0000                       
REMARK   3      S21:   0.0000 S22:   0.0000 S23:   0.0000                       
REMARK   3      S31:   0.0000 S32:   0.0000 S33:   0.0000                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 3IRW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 15-SEP-09.                  
REMARK 100 THE DEPOSITION ID IS D_1000054788.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 26-JAN-09                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
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                       : X29A                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1050, 1.1054, 1.0762             
REMARK 200  MONOCHROMATOR                  : DOUBLE CRYSTAL MONOCHROMETER       
REMARK 200                                   WITH HORIZONTAL FOCUSING           
REMARK 200                                   SAGITTAL BEND SECOND MONO          
REMARK 200                                   CRYSTAL WITH 4:1 MAGNIFICATION     
REMARK 200                                   RATIO AND VERTICALLY FOCUSING      
REMARK 200                                   MIRROR.                            
REMARK 200  OPTICS                         : CRYOGENICALLY COOLED DOUBLE        
REMARK 200                                   CRYSTAL MONOCHROMETER WITH         
REMARK 200                                   HORIZONTAL FOCUSING SAGITTAL       
REMARK 200                                   BEND SECOND MONO CRYSTAL WITH 4:   
REMARK 200                                   1 MAGNIFICATION RATIO AND          
REMARK 200                                   VERTICALLY FOCUSING 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   : 8935                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.700                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 1.900                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 94.8                               
REMARK 200  DATA REDUNDANCY                : 2.700                              
REMARK 200  R MERGE                    (I) : 0.07200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.70                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.80                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 82.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.38200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.15                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.06                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 22% PEG550MME, 50 MM MES, PH 6.0, 5 MM   
REMARK 280  MGSO4, 300 MM NACL, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE      
REMARK 280  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       22.56150            
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: 6430 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 18100 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -34.0 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    GTP R   8   C3' -  O3' -  P   ANGL. DEV. = -10.4 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    PRO P   8      141.69    -36.40                                   
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 C2E R 1                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 670                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 2                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 3                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 4                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 5                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 6                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 7                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 671                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE IRI R 672                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG R 673                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG R 674                  
DBREF  3IRW P    1    98  UNP    P09012   SNRPA_HUMAN      1     98             
DBREF  3IRW R    8    98  PDB    3IRW     3IRW             8     98             
SEQADV 3IRW HIS P   31  UNP  P09012    TYR    31 ENGINEERED MUTATION            
SEQADV 3IRW 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   G          
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   C   C   G   A   U   G          
SEQRES   8 R   92    G                                                          
MODRES 3IRW GTP R    8    G  GUANOSINE-5'-TRIPHOSPHATE                          
HET    GTP  R   8      32                                                       
HET    C2E  R   1      46                                                       
HET    IRI  R 670       7                                                       
HET    IRI  R   2       7                                                       
HET    IRI  R   3       7                                                       
HET    IRI  R   4       7                                                       
HET    IRI  R   5       7                                                       
HET    IRI  R   6       7                                                       
HET    IRI  R   7       7                                                       
HET    IRI  R 671       7                                                       
HET    IRI  R 672       7                                                       
HET     MG  R 673       1                                                       
HET     MG  R 674       1                                                       
HETNAM     GTP GUANOSINE-5'-TRIPHOSPHATE                                        
HETNAM     C2E 9,9'-[(2R,3R,3AS,5S,7AR,9R,10R,10AS,12S,14AR)-3,5,10,            
HETNAM   2 C2E  12-TETRAHYDROXY-5,12-DIOXIDOOCTAHYDRO-2H,7H-DIFURO[3,           
HETNAM   3 C2E  2-D:3',2'-J][1,3,7,9,2,                                         
HETNAM   4 C2E  8]TETRAOXADIPHOSPHACYCLODODECINE-2,9-DIYL]BIS(2-AMINO-          
HETNAM   5 C2E  1,9-DIHYDRO-6H-PURIN-6-ONE)                                     
HETNAM     IRI IRIDIUM HEXAMMINE ION                                            
HETNAM      MG MAGNESIUM ION                                                    
HETSYN     C2E C-DI-GMP; CYCLIC DIGUANOSINE MONOPHOSPHATE                       
FORMUL   2  GTP    C10 H16 N5 O14 P3                                            
FORMUL   3  C2E    C20 H24 N10 O14 P2                                           
FORMUL   4  IRI    9(H18 IR N6 3+)                                              
FORMUL  13   MG    2(MG 2+)                                                     
FORMUL  15  HOH   *92(H2 O)                                                     
HELIX    1   1 LYS P   22  SER P   35  1                                  14    
HELIX    2   2 GLU P   61  GLN P   73  1                                  13    
HELIX    3   3 SER P   91  LYS P   96  1                                   6    
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  1.66  
SITE     1 AC1 17 IRI R   3    G R  14    A R  16    C R  17                    
SITE     2 AC1 17   A R  18    G R  19    G R  20    G R  21                    
SITE     3 AC1 17   C R  46    A R  47    A R  48    A R  49                    
SITE     4 AC1 17   C R  92    C R  93  HOH R 111  HOH R 124                    
SITE     5 AC1 17  MG R 674                                                     
SITE     1 AC2  6   C R  46    A R  47    A R  48    A R  49                    
SITE     2 AC2  6   G R  85  HOH R 182                                          
SITE     1 AC3  9   U R  53    G R  56    G R  57    C R  58                    
SITE     2 AC3  9   G R  80    U R  81  HOH R 102  HOH R 104                    
SITE     3 AC3  9 IRI R 672                                                     
SITE     1 AC4  4 C2E R   1    C R  17    G R  19    G R  20                    
SITE     1 AC5  6 IRI R   7    A R  82    G R  85    G R  86                    
SITE     2 AC5  6   G R  87  HOH R 172                                          
SITE     1 AC6  5 GTP R   8    G R   9    U R  10    U R  96                    
SITE     2 AC6  5   G R  97                                                     
SITE     1 AC7  3   G R  32    A R  34  HOH R 180                               
SITE     1 AC8  5 IRI R   4    G R  87    G R  88    U R  89                    
SITE     2 AC8  5 HOH R 114                                                     
SITE     1 AC9  4   A R  24    A R  25    G R  83    C R  84                    
SITE     1 BC1  5 IRI R   2    A R  78    G R  79    G R  80                    
SITE     2 BC1  5 HOH R 104                                                     
SITE     1 BC2  4   C R  22    A R  23    G R  45    A R  49                    
SITE     1 BC3  3 C2E R   1    C R  15  HOH R 111                               
CRYST1   49.461   45.123   76.573  90.00  96.79  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      0.020218  0.000000  0.002407        0.00000                         
SCALE2      0.000000  0.022162  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.013152        0.00000