PDB Short entry for 3BSU
HEADER    HYDROLASE/RNA/DNA                       26-DEC-07   3BSU              
TITLE     HYBRID-BINDING DOMAIN OF HUMAN RNASE H1 IN COMPLEX WITH 12-           
TITLE    2 MER RNA/DNA                                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE H1;                                           
COMPND   3 CHAIN: A, B, C, F, G, H;                                             
COMPND   4 FRAGMENT: CATALYTIC DOMAIN;                                          
COMPND   5 SYNONYM: RNASE H1; RIBONUCLEASE H TYPE II;                           
COMPND   6 EC: 3.1.26.4;                                                        
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: RNA (5'-R(*GP*AP*CP*AP*CP*CP*UP*GP*AP*UP*UP*C)-            
COMPND  10 3');                                                                 
COMPND  11 CHAIN: D, I;                                                         
COMPND  12 ENGINEERED: YES;                                                     
COMPND  13 MOL_ID: 3;                                                           
COMPND  14 MOLECULE: DNA (5'-D(*DGP*DAP*DAP*DTP*DCP*DAP*DGP*DGP*(5IU)           
COMPND  15 P*DGP*DTP*DC)-3');                                                   
COMPND  16 CHAIN: E, J;                                                         
COMPND  17 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: RNASEH1, RNH1;                                                 
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21 ROSETTA;                              
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET15;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 SYNTHETIC: YES;                                                      
SOURCE  13 MOL_ID: 3;                                                           
SOURCE  14 SYNTHETIC: YES                                                       
KEYWDS    RNASE H, RNA/DNA HYBRID, DSRNA, HYDROLASE/RNA/DNA COMPLEX             
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.NOWOTNY,S.M.CERRITELLI,R.GHIRLANDO,S.A.GAIDAMAKOV,                  
AUTHOR   2 R.J.CROUCH,W.YANG                                                    
REVDAT   3   24-FEB-09 3BSU    1       VERSN                                    
REVDAT   2   22-JUL-08 3BSU    1       JRNL   REMARK                            
REVDAT   1   25-MAR-08 3BSU    0                                                
JRNL        AUTH   M.NOWOTNY,S.M.CERRITELLI,R.GHIRLANDO,                        
JRNL        AUTH 2 S.A.GAIDAMAKOV,R.J.CROUCH,W.YANG                             
JRNL        TITL   SPECIFIC RECOGNITION OF RNA/DNA HYBRID AND                   
JRNL        TITL 2 ENHANCEMENT OF HUMAN RNASE H1 ACTIVITY BY HBD.               
JRNL        REF    EMBO J.                       V.  27  1172 2008              
JRNL        REFN                   ISSN 0261-4189                               
JRNL        PMID   18337749                                                     
JRNL        DOI    10.1038/EMBOJ.2008.44                                        
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.10 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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 : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 50.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                           
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 96.3                           
REMARK   3   NUMBER OF REFLECTIONS             : 23892                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE            (WORKING SET) : 0.220                           
REMARK   3   FREE R VALUE                     : 0.290                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 2360                            
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) : NULL                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : NULL                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : NULL                         
REMARK   3   BIN FREE R VALUE                    : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : NULL                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : NULL                         
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            : 2456                                    
REMARK   3   NUCLEIC ACID ATOMS       : 1033                                    
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 252                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  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) : 0.010                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.27                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : NULL                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : NULL                            
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : NULL                                      
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : 1.427 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.293 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.942 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.793 ; 2.500                
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: NULL                                      
REMARK   4                                                                      
REMARK   4 3BSU COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-JAN-08.                  
REMARK 100 THE RCSB ID CODE IS RCSB045925.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 03-AUG-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 22-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97928                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARMOSAIC 300 MM CCD               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 23892                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.100                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.3                               
REMARK 200  DATA REDUNDANCY                : 3.600                              
REMARK 200  R MERGE                    (I) : 0.06100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : NULL                               
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.20                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 95.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.60                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.39600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.900                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 37.21                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 1.2 M NACL, 0.1 M HEPES (PH 7.5),        
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 294K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       22.74600            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       70.16100            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       32.13100            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       70.16100            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       22.74600            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       32.13100            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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: PENTAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, A, B, C                         
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: PENTAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: I, J, F, G, H                         
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     GLY A    24                                                      
REMARK 465     SER A    25                                                      
REMARK 465     SER A    74                                                      
REMARK 465     ALA A    75                                                      
REMARK 465     SER A    76                                                      
REMARK 465     GLY B    24                                                      
REMARK 465     SER B    25                                                      
REMARK 465     SER B    74                                                      
REMARK 465     ALA B    75                                                      
REMARK 465     SER B    76                                                      
REMARK 465     GLY C    24                                                      
REMARK 465     SER C    25                                                      
REMARK 465     HIS C    26                                                      
REMARK 465     ALA C    75                                                      
REMARK 465     SER C    76                                                      
REMARK 465     GLY F    24                                                      
REMARK 465     SER F    74                                                      
REMARK 465     ALA F    75                                                      
REMARK 465     SER F    76                                                      
REMARK 465     SER G    74                                                      
REMARK 465     ALA G    75                                                      
REMARK 465     SER G    76                                                      
REMARK 465     GLY H    24                                                      
REMARK 465     SER H    25                                                      
REMARK 465     LYS H    73                                                      
REMARK 465     SER H    74                                                      
REMARK 465     ALA H    75                                                      
REMARK 465     SER H    76                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS(M=MODEL NUMBER;            
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     SER C  74    OG                                                  
REMARK 470     SER F  25    OG                                                  
REMARK 470     HIS H  26    CG   ND1  CD2  CE1  NE2                             
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    HIS G  26       57.60   -140.77                                   
REMARK 500    ARG H  52       19.54     58.06                                   
REMARK 500    LYS H  59      144.84   -173.65                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH C 510        DISTANCE =  6.02 ANGSTROMS                       
REMARK 525    HOH F 103        DISTANCE =  5.61 ANGSTROMS                       
REMARK 525    HOH D  48        DISTANCE =  5.41 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG C 502                  
DBREF  3BSU A   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU B   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU C   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU F   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU G   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU H   24    76  UNP    O60930   RNH1_HUMAN      24     76             
DBREF  3BSU D    1    12  PDB    3BSU     3BSU             1     12             
DBREF  3BSU E    1    12  PDB    3BSU     3BSU             1     12             
DBREF  3BSU I    1    12  PDB    3BSU     3BSU             1     12             
DBREF  3BSU J    1    12  PDB    3BSU     3BSU             1     12             
SEQADV 3BSU SER A   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS A   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQADV 3BSU SER B   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS B   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQADV 3BSU SER C   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS C   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQADV 3BSU SER F   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS F   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQADV 3BSU SER G   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS G   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQADV 3BSU SER H   25  UNP  O60930    PHE    25 CLONING ARTIFACT               
SEQADV 3BSU HIS H   26  UNP  O60930    GLY    26 CLONING ARTIFACT               
SEQRES   1 A   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 A   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 A   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 A   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 A   53  SER                                                          
SEQRES   1 B   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 B   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 B   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 B   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 B   53  SER                                                          
SEQRES   1 C   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 C   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 C   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 C   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 C   53  SER                                                          
SEQRES   1 D   12    G   A   C   A   C   C   U   G   A   U   U   C              
SEQRES   1 E   12   DG  DA  DA  DT  DC  DA  DG  DG 5IU  DG  DT  DC              
SEQRES   1 F   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 F   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 F   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 F   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 F   53  SER                                                          
SEQRES   1 G   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 G   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 G   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 G   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 G   53  SER                                                          
SEQRES   1 H   53  GLY SER HIS MET PHE TYR ALA VAL ARG ARG GLY ARG LYS          
SEQRES   2 H   53  THR GLY VAL PHE LEU THR TRP ASN GLU CYS ARG ALA GLN          
SEQRES   3 H   53  VAL ASP ARG PHE PRO ALA ALA ARG PHE LYS LYS PHE ALA          
SEQRES   4 H   53  THR GLU ASP GLU ALA TRP ALA PHE VAL ARG LYS SER ALA          
SEQRES   5 H   53  SER                                                          
SEQRES   1 I   12    G   A   C   A   C   C   U   G   A   U   U   C              
SEQRES   1 J   12   DG  DA  DA  DT  DC  DA  DG  DG 5IU  DG  DT  DC              
MODRES 3BSU 5IU E    9   DU  5-IODO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE            
MODRES 3BSU 5IU J    9   DU  5-IODO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE            
HET    5IU  E   9      20                                                       
HET    5IU  J   9      20                                                       
HET     MG  A 501       1                                                       
HET     MG  C 502       1                                                       
HETNAM     5IU 5-IODO-2'-DEOXYURIDINE-5'-MONOPHOSPHATE                          
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   2  5IU    2(C9 H12 I N2 O8 P)                                          
FORMUL  11   MG    2(MG 2+)                                                     
FORMUL  13  HOH   *252(H2 O)                                                    
HELIX    1   1 THR A   42  ASP A   51  1                                  10    
HELIX    2   2 THR A   63  LYS A   73  1                                  11    
HELIX    3   3 THR B   42  ASP B   51  1                                  10    
HELIX    4   4 THR B   63  ARG B   72  1                                  10    
HELIX    5   5 THR C   42  ASP C   51  1                                  10    
HELIX    6   6 THR C   63  LYS C   73  1                                  11    
HELIX    7   7 THR F   42  ASP F   51  1                                  10    
HELIX    8   8 THR F   63  LYS F   73  1                                  11    
HELIX    9   9 THR G   42  ASP G   51  1                                  10    
HELIX   10  10 THR G   63  ARG G   72  1                                  10    
HELIX   11  11 THR H   42  ASP H   51  1                                  10    
HELIX   12  12 THR H   63  ARG H   72  1                                  10    
SHEET    1   A 3 GLY A  38  PHE A  40  0                                        
SHEET    2   A 3 PHE A  28  ARG A  33 -1  N  TYR A  29   O  PHE A  40           
SHEET    3   A 3 ARG A  57  PHE A  61 -1  O  PHE A  61   N  PHE A  28           
SHEET    1   B 3 GLY B  38  PHE B  40  0                                        
SHEET    2   B 3 PHE B  28  ARG B  33 -1  N  TYR B  29   O  PHE B  40           
SHEET    3   B 3 ARG B  57  PHE B  61 -1  O  PHE B  61   N  PHE B  28           
SHEET    1   C 3 GLY C  38  PHE C  40  0                                        
SHEET    2   C 3 PHE C  28  ARG C  33 -1  N  TYR C  29   O  PHE C  40           
SHEET    3   C 3 ARG C  57  PHE C  61 -1  O  PHE C  61   N  PHE C  28           
SHEET    1   D 3 GLY F  38  PHE F  40  0                                        
SHEET    2   D 3 PHE F  28  ARG F  33 -1  N  TYR F  29   O  PHE F  40           
SHEET    3   D 3 ARG F  57  PHE F  61 -1  O  PHE F  61   N  PHE F  28           
SHEET    1   E 3 GLY G  38  PHE G  40  0                                        
SHEET    2   E 3 PHE G  28  ARG G  33 -1  N  TYR G  29   O  PHE G  40           
SHEET    3   E 3 ARG G  57  PHE G  61 -1  O  PHE G  61   N  PHE G  28           
SHEET    1   F 3 GLY H  38  PHE H  40  0                                        
SHEET    2   F 3 PHE H  28  ARG H  33 -1  N  TYR H  29   O  PHE H  40           
SHEET    3   F 3 ARG H  57  PHE H  61 -1  O  PHE H  61   N  PHE H  28           
LINK         OE1 GLU A  45                MG    MG A 501     1555   1555  1.96  
LINK         OE2 GLU C  45                MG    MG C 502     1555   1555  2.12  
LINK         O3'  DG E   8                 P   5IU E   9     1555   1555  1.62  
LINK         O3' 5IU E   9                 P    DG E  10     1555   1555  1.60  
LINK         O3'  DG J   8                 P   5IU J   9     1555   1555  1.61  
LINK         O3' 5IU J   9                 P    DG J  10     1555   1555  1.60  
SITE     1 AC1  3 PHE C  40  LEU C  41  GLU C  45                               
CRYST1   45.492   64.262  140.322  90.00  90.00  90.00 P 21 21 21   24          
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      0.021982  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.015561  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007126        0.00000