HEADER    RNA                                     10-AUG-04   1U9S              
TITLE     CRYSTAL STRUCTURE OF THE SPECIFICITY DOMAIN OF RIBONUCLEASE P OF THE  
TITLE    2 A-TYPE                                                               
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE P;                                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: RIBONUCLEASE P RNA SUBUNIT;                                 
COMPND   5 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: RNA WAS PREPARED BY IN VITRO TRANSCRIPTION.           
KEYWDS    RNASE P, RIBONUCLEASE P RNA, P RNA, SPECIFICITY DOMAIN, S-DOMAIN,     
KEYWDS   2 RIBOZYME, TRNA, PRE-TRNA, THERMUS THERMOPHILUS, RNA                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.S.KRASILNIKOV,Y.XIAO,T.PAN,A.MONDRAGON                              
REVDAT   3   14-FEB-24 1U9S    1       REMARK LINK                              
REVDAT   2   24-FEB-09 1U9S    1       VERSN                                    
REVDAT   1   26-OCT-04 1U9S    0                                                
JRNL        AUTH   A.S.KRASILNIKOV,Y.XIAO,T.PAN,A.MONDRAGON                     
JRNL        TITL   BASIS FOR STRUCTURAL DIVERSITY IN HOMOLOGOUS RNAS.           
JRNL        REF    SCIENCE                       V. 306   104 2004              
JRNL        REFN                   ISSN 0036-8075                               
JRNL        PMID   15459389                                                     
JRNL        DOI    10.1126/SCIENCE.1101489                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.90 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 : MAXIMUM LIKELIHOOD                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 35.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 13911                          
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) : 0.241                           
REMARK   3   FREE R VALUE                     : 0.275                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 698                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
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) : 2.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.98                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3898                       
REMARK   3   BIN FREE R VALUE                    : 0.4160                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 47                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 0                                       
REMARK   3   NUCLEIC ACID ATOMS       : 3351                                    
REMARK   3   HETEROGEN ATOMS          : 21                                      
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 64.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 87.00                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 16.41900                                             
REMARK   3    B22 (A**2) : -13.79100                                            
REMARK   3    B33 (A**2) : -2.62800                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : NULL                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : NULL                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : ISOTROPIC                                 
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 : NULL                                                 
REMARK   3   KSOL        : NULL                                                 
REMARK   3   BSOL        : NULL                                                 
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  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NUCLEOTIDES 75, 148-151, 235 ARE          
REMARK   3  DISORDERED                                                          
REMARK   4                                                                      
REMARK   4 1U9S COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-AUG-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000023422.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 25-NOV-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 5ID-B                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.92                               
REMARK 200  MONOCHROMATOR                  : SI MIRRORS                         
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS, SCALA, CCP4 (SCALA)           
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 13911                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 35.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : 3.900                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05300                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 13.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.98                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.20                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.37000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SHARP, OASIS                                          
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 67.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.00                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1,6 HEXANDIOL, BARIUM CHLORIDE,          
REMARK 280  SPERMINE, HEPES , PH 6.5, VAPOR DIFFUSION, HANGING DROP,            
REMARK 280  TEMPERATURE 303K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   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       66.81000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       66.81000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       38.23500            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       60.44500            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       38.23500            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       60.44500            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       66.81000            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       38.23500            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       60.44500            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       66.81000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       38.23500            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       60.44500            
REMARK 290   SMTRY3   8  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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375 BA    BA A   7  LIES ON A SPECIAL POSITION.                          
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       G A    75                                                      
REMARK 465       C A   148                                                      
REMARK 465       U A   149                                                      
REMARK 465       U A   150                                                      
REMARK 465       C A   151                                                      
REMARK 465       C A   235                                                      
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 A 126   C2' -  C3' -  O3' ANGL. DEV. =  14.1 DEGREES          
REMARK 500      G A 159   C2' -  C3' -  O3' ANGL. DEV. =  13.9 DEGREES          
REMARK 500      C A 175   N1  -  C1' -  C2' ANGL. DEV. =  13.6 DEGREES          
REMARK 500      G A 188   C2' -  C3' -  O3' ANGL. DEV. =  18.0 DEGREES          
REMARK 500      G A 188   N9  -  C1' -  C2' ANGL. DEV. =   9.1 DEGREES          
REMARK 500      U A 198   N1  -  C1' -  C2' ANGL. DEV. =  -8.1 DEGREES          
REMARK 500      C A 219   N1  -  C1' -  C2' ANGL. DEV. =  18.0 DEGREES          
REMARK 500      C A 219   O4' -  C1' -  N1  ANGL. DEV. =   5.1 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      G A 188         0.06    SIDE CHAIN                              
REMARK 500      G A 218         0.05    SIDE CHAIN                              
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                              BA A   2  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 192   OP2                                                    
REMARK 620 2   G A 218   N7  152.4                                              
REMARK 620 3   G A 218   O6  136.5  60.4                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   3  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 130   N7                                                     
REMARK 620 2   G A 216   O3' 113.1                                              
REMARK 620 3   G A 217   OP1 145.1  43.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   4  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 161   OP2                                                    
REMARK 620 2   G A 162   N7   82.8                                              
REMARK 620 3   G A 162   O6  136.8  70.2                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   5  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 100   N7                                                     
REMARK 620 2   G A 100   O6   64.9                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   6  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C A 175   O2'                                                    
REMARK 620 2   C A 175   O2   60.5                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   7  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C A 219   OP2                                                    
REMARK 620 2   C A 219   OP2 116.3                                              
REMARK 620 3   A A 220   OP1  97.6  93.7                                        
REMARK 620 4   A A 220   OP1  93.7  97.6 158.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A   8  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 205   O6                                                     
REMARK 620 2   G A 205   N7   68.2                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  10  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 137   N6                                                     
REMARK 620 2   G A 159   N7   64.5                                              
REMARK 620 3   G A 159   OP2  41.6  77.9                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  11  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A  98   O6                                                     
REMARK 620 2   G A  99   O6   56.8                                              
REMARK 620 3   G A 100   O6  112.1  56.6                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  12  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A  79   O6                                                     
REMARK 620 2   G A  79   N7   53.0                                              
REMARK 620 3   G A 110   O6   62.4 105.1                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  15  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 123   N7                                                     
REMARK 620 2   G A 123   O6   57.6                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  16  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A A 137   O2'                                                    
REMARK 620 2   G A 141   O6  109.9                                              
REMARK 620 3   G A 157   O6  120.3  70.3                                        
REMARK 620 4   U A 158   O4   72.5  60.9  55.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  17  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1  BA A  19  BA                                                      
REMARK 620 2   G A 182   O6   47.2                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  18  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 123   N1                                                     
REMARK 620 2   G A 123   O6   36.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              BA A  19  BA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   G A 182   N7                                                     
REMARK 620 2   G A 182   O6   59.1                                              
REMARK 620 3   U A 183   O4   67.1  78.8                                        
REMARK 620 N                    1     2                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 1                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 2                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 3                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 4                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 5                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 6                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 7                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 8                    
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 10                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 11                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 12                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 15                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 16                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 17                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 18                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 19                   
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BA A 21                   
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1NBS   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE SPECIFICITY DOMAIN OF RIBONUCLEASE P OF     
REMARK 900 THE B-TYPE                                                           
DBREF  1U9S A   75   235  GB     48272    X60463         449    609             
SEQRES   1 A  161    G   G   G   U   G   C   C   A   G   G   U   A   A          
SEQRES   2 A  161    C   G   C   C   U   G   G   G   C   G   G   G   G          
SEQRES   3 A  161    U   A   A   C   C   C   G   A   C   G   G   A   A          
SEQRES   4 A  161    A   G   U   G   C   C   A   C   A   G   A   G   A          
SEQRES   5 A  161    A   G   A   G   A   C   C   G   C   C   A   G   C          
SEQRES   6 A  161    G   G   C   C   G   G   G   G   C   U   U   C   C          
SEQRES   7 A  161    C   C   C   G   G   U   G   C   G   G   G   C   A          
SEQRES   8 A  161    A   G   G   G   U   G   A   A   A   C   G   G   C          
SEQRES   9 A  161    G   G   G   G   U   A   A   G   A   G   C   C   C          
SEQRES  10 A  161    A   C   C   G   C   C   U   G   G   C   C   U   G          
SEQRES  11 A  161    G   C   A   A   C   A   G   G   C   C   G   G   G          
SEQRES  12 A  161    G   C   A   C   G   G   C   A   A   A   C   C   C          
SEQRES  13 A  161    C   A   C   C   C                                          
HET     BA  A   1       1                                                       
HET     BA  A   2       1                                                       
HET     BA  A   3       1                                                       
HET     BA  A   4       1                                                       
HET     BA  A   5       1                                                       
HET     BA  A   6       1                                                       
HET     BA  A   7       1                                                       
HET     BA  A   8       1                                                       
HET     BA  A   9       1                                                       
HET     BA  A  10       1                                                       
HET     BA  A  11       1                                                       
HET     BA  A  12       1                                                       
HET     BA  A  13       1                                                       
HET     BA  A  14       1                                                       
HET     BA  A  15       1                                                       
HET     BA  A  16       1                                                       
HET     BA  A  17       1                                                       
HET     BA  A  18       1                                                       
HET     BA  A  19       1                                                       
HET     BA  A  20       1                                                       
HET     BA  A  21       1                                                       
HETNAM      BA BARIUM ION                                                       
FORMUL   2   BA    21(BA 2+)                                                    
LINK        BA    BA A   1                 OP2   G A 167     1555   1555  2.90  
LINK        BA    BA A   2                 OP2   A A 192     1555   1555  2.69  
LINK        BA    BA A   2                 N7    G A 218     1555   1555  2.59  
LINK        BA    BA A   2                 O6    G A 218     1555   1555  3.35  
LINK        BA    BA A   3                 N7    G A 130     1555   1555  2.86  
LINK        BA    BA A   3                 O3'   G A 216     1555   4557  3.57  
LINK        BA    BA A   3                 OP1   G A 217     1555   4557  2.54  
LINK        BA    BA A   4                 OP2   G A 161     1555   1555  3.04  
LINK        BA    BA A   4                 N7    G A 162     1555   1555  2.71  
LINK        BA    BA A   4                 O6    G A 162     1555   1555  2.68  
LINK        BA    BA A   5                 N7    G A 100     1555   1555  3.03  
LINK        BA    BA A   5                 O6    G A 100     1555   1555  2.71  
LINK        BA    BA A   6                 O2'   C A 175     1555   1555  3.35  
LINK        BA    BA A   6                 O2    C A 175     1555   1555  2.67  
LINK        BA    BA A   7                 OP2   C A 219     1555   1555  2.96  
LINK        BA    BA A   7                 OP2   C A 219     1555   4557  2.96  
LINK        BA    BA A   7                 OP1   A A 220     1555   1555  3.32  
LINK        BA    BA A   7                 OP1   A A 220     1555   4557  3.32  
LINK        BA    BA A   8                 O6    G A 205     1555   1555  2.55  
LINK        BA    BA A   8                 N7    G A 205     1555   1555  2.98  
LINK        BA    BA A  10                 N6    A A 137     1555   1555  3.28  
LINK        BA    BA A  10                 N7    G A 159     1555   1555  3.63  
LINK        BA    BA A  10                 OP2   G A 159     1555   1555  3.63  
LINK        BA    BA A  11                 O6    G A  98     1555   1555  3.12  
LINK        BA    BA A  11                 O6    G A  99     1555   1555  3.35  
LINK        BA    BA A  11                 O6    G A 100     1555   1555  3.32  
LINK        BA    BA A  12                 O6    G A  79     1555   1555  3.24  
LINK        BA    BA A  12                 N7    G A  79     1555   1555  3.67  
LINK        BA    BA A  12                 O6    G A 110     1555   1555  3.64  
LINK        BA    BA A  15                 N7    G A 123     1555   1555  3.48  
LINK        BA    BA A  15                 O6    G A 123     1555   1555  2.79  
LINK        BA    BA A  16                 O2'   A A 137     1555   1555  3.46  
LINK        BA    BA A  16                 O6    G A 141     1555   1555  2.81  
LINK        BA    BA A  16                 O6    G A 157     1555   1555  3.61  
LINK        BA    BA A  16                 O4    U A 158     1555   1555  2.71  
LINK        BA    BA A  17                BA    BA A  19     1555   1555  3.55  
LINK        BA    BA A  17                 O6    G A 182     1555   1555  2.83  
LINK        BA    BA A  18                 N1    G A 123     1555   1555  3.70  
LINK        BA    BA A  18                 O6    G A 123     1555   1555  2.40  
LINK        BA    BA A  19                 N7    G A 182     1555   1555  3.44  
LINK        BA    BA A  19                 O6    G A 182     1555   1555  2.64  
LINK        BA    BA A  19                 O4    U A 183     1555   1555  3.15  
LINK        BA    BA A  21                 O6    G A 171     1555   1555  2.77  
SITE     1 AC1  1   G A 167                                                     
SITE     1 AC2  2   A A 192    G A 218                                          
SITE     1 AC3  3   G A 130    G A 216    G A 217                               
SITE     1 AC4  2   G A 161    G A 162                                          
SITE     1 AC5  1   G A 100                                                     
SITE     1 AC6  1   C A 175                                                     
SITE     1 AC7  2   C A 219    A A 220                                          
SITE     1 AC8  1   G A 205                                                     
SITE     1 AC9  2   A A 137    G A 159                                          
SITE     1 BC1  3   G A  98    G A  99    G A 100                               
SITE     1 BC2  2   G A  79    G A 110                                          
SITE     1 BC3  1   G A 123                                                     
SITE     1 BC4  4   A A 137    G A 141    G A 157    U A 158                    
SITE     1 BC5  2  BA A  19    G A 182                                          
SITE     1 BC6  1   G A 123                                                     
SITE     1 BC7  3  BA A  17    G A 182    U A 183                               
SITE     1 BC8  1   G A 171                                                     
CRYST1   76.470  120.890  133.620  90.00  90.00  90.00 C 2 2 21      8          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.013077  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.008272  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007484        0.00000