PDB Short entry for 4PR6
HEADER    RNA BINDING PROTEIN/RNA                 05-MAR-14   4PR6              
TITLE     A SECOND LOOK AT THE HDV RIBOZYME STRUCTURE AND DYNAMICS.             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: HDV RIBOZYME SELF-CLEAVED;                                 
COMPND   3 CHAIN: B;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A;                      
COMPND   7 CHAIN: A;                                                            
COMPND   8 FRAGMENT: RNA BINDING DOMAIN, UNP RESIDUES 101-244;                  
COMPND   9 SYNONYM: U1 SNRNP A, U1-A, U1A;                                      
COMPND  10 ENGINEERED: YES;                                                     
COMPND  11 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 OTHER_DETAILS: IN VITRO TRANSCRIPTION;                               
SOURCE   4 MOL_ID: 2;                                                           
SOURCE   5 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   6 ORGANISM_COMMON: HUMAN;                                              
SOURCE   7 ORGANISM_TAXID: 9606;                                                
SOURCE   8 GENE: SNRPA;                                                         
SOURCE   9 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE  10 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE  11 EXPRESSION_SYSTEM_STRAIN: B834;                                      
SOURCE  12 EXPRESSION_SYSTEM_PLASMID: T7 EXPRESSION PLASMID (A1-98 Y31H, Q36R)  
KEYWDS    BASE SEQUENCE, BINDING SITES, CATALYSIS, CLONING, MOLECULAR, COMPUTER 
KEYWDS   2 GRAPHICS, ESCHERICHIA COLI, HEPATITIS DELTA VIRUS, MODELS, MOLECULAR 
KEYWDS   3 SEQUENCE DATA, NUCLEIC ACID CONFORMATION, RNA, CATALYTIC, VIRAL,     
KEYWDS   4 RNA-BINDING PROTEINS, RIBONUCLEOPROTEIN, U1 SMALL NUCLEAR, RNA       
KEYWDS   5 BINDING PROTEIN/RNA, RNA BINDING PROTEIN-RNA COMPLEX                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.J.KAPRAL,S.JAIN,J.NOESKE,J.A.DOUDNA,D.C.RICHARDSON,J.S.RICHARDSON   
REVDAT   2   26-NOV-14 4PR6    1       JRNL                                     
REVDAT   1   29-OCT-14 4PR6    0                                                
SPRSDE     29-OCT-14 4PR6      1CX0                                             
JRNL        AUTH   G.J.KAPRAL,S.JAIN,J.NOESKE,J.A.DOUDNA,D.C.RICHARDSON,        
JRNL        AUTH 2 J.S.RICHARDSON                                               
JRNL        TITL   NEW TOOLS PROVIDE A SECOND LOOK AT HDV RIBOZYME STRUCTURE,   
JRNL        TITL 2 DYNAMICS AND CLEAVAGE.                                       
JRNL        REF    NUCLEIC ACIDS RES.            V.  42 12833 2014              
JRNL        REFN                   ISSN 0305-1048                               
JRNL        PMID   25326328                                                     
JRNL        DOI    10.1093/NAR/GKU992                                           
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.30 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE: 1.8.4_1496)                   
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-                     
REMARK   3               : KUNSTLEVE,LI-WEI HUNG,ROBERT IMMORMINO,              
REMARK   3               : TOM IOERGER,AIRLIE MCCOY,ERIK MCKEE,NIGEL            
REMARK   3               : MORIARTY,REETAL PAI,RANDY READ,JANE                  
REMARK   3               : RICHARDSON,DAVID RICHARDSON,TOD ROMO,JIM             
REMARK   3               : SACCHETTINI,NICHOLAS SAUTER,JACOB SMITH,             
REMARK   3               : LAURENT STORONI,TOM TERWILLIGER,PETER                
REMARK   3               : ZWART                                                
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : CNS                                           
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 18.58                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.340                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 18903                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.203                           
REMARK   3   R VALUE            (WORKING SET) : 0.199                           
REMARK   3   FREE R VALUE                     : 0.241                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.860                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1863                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 18.5776 -  5.3678    0.84     1218   139  0.1583 0.2047        
REMARK   3     2  5.3678 -  4.2777    0.95     1297   158  0.1440 0.1769        
REMARK   3     3  4.2777 -  3.7420    0.96     1328   142  0.1647 0.2097        
REMARK   3     4  3.7420 -  3.4022    0.97     1350   139  0.1890 0.2275        
REMARK   3     5  3.4022 -  3.1596    0.98     1328   155  0.2112 0.2612        
REMARK   3     6  3.1596 -  2.9741    0.98     1335   137  0.2331 0.3079        
REMARK   3     7  2.9741 -  2.8257    0.97     1343   116  0.2707 0.3057        
REMARK   3     8  2.8257 -  2.7031    0.97     1341   130  0.2601 0.3347        
REMARK   3     9  2.7031 -  2.5993    0.96     1316   135  0.2690 0.2952        
REMARK   3    10  2.5993 -  2.5098    0.97     1313   151  0.2776 0.3611        
REMARK   3    11  2.5098 -  2.4315    0.96     1285   144  0.3124 0.3354        
REMARK   3    12  2.4315 -  2.3621    0.97     1278   164  0.3272 0.3540        
REMARK   3    13  2.3621 -  2.3000    0.97     1296   153  0.3514 0.3991        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.380            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 30.110           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 47.90                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 66.80                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -9.57000                                             
REMARK   3    B22 (A**2) : -9.57000                                             
REMARK   3    B33 (A**2) : 19.15000                                             
REMARK   3    B12 (A**2) : 1.53000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.005           2555                                  
REMARK   3   ANGLE     :  0.678           3806                                  
REMARK   3   CHIRALITY :  0.027            486                                  
REMARK   3   PLANARITY :  0.003            210                                  
REMARK   3   DIHEDRAL  : 12.643           1198                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4PR6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 06-MAR-14.                  
REMARK 100 THE RCSB ID CODE IS RCSB085120.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JAN-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : CHESS                              
REMARK 200  BEAMLINE                       : F1                                 
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9209                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 18903                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 95.6                               
REMARK 200  DATA REDUNDANCY                : 3.840                              
REMARK 200  R MERGE                    (I) : 0.06600                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 25.9000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.40                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.84                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.04100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: SHARP                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 35.45                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.91                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG MME 2000, LITHIUM SULPHATE,          
REMARK 280  SPERMINE, TRIS, COBALT HEXAMMINE, MAGNESIUM CHLORIDE, PH 7.0,       
REMARK 280  VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2                            
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290       7555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       8555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       9555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290      10555   Y+2/3,X+1/3,-Z+1/3                                      
REMARK 290      11555   X-Y+2/3,-Y+1/3,-Z+1/3                                   
REMARK 290      12555   -X+2/3,-X+Y+1/3,-Z+1/3                                  
REMARK 290      13555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290      14555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290      15555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290      16555   Y+1/3,X+2/3,-Z+2/3                                      
REMARK 290      17555   X-Y+1/3,-Y+2/3,-Z+2/3                                   
REMARK 290      18555   -X+1/3,-X+Y+2/3,-Z+2/3                                  
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  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        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000       54.67500            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       31.56663            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       63.56000            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000       54.67500            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       31.56663            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       63.56000            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000       54.67500            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       31.56663            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       63.56000            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000       54.67500            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       31.56663            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       63.56000            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000       54.67500            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       31.56663            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       63.56000            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000       54.67500            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       31.56663            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       63.56000            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       63.13325            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000      127.12000            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000       63.13325            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000      127.12000            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000       63.13325            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000      127.12000            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000       63.13325            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000      127.12000            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000       63.13325            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000      127.12000            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000       63.13325            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000      127.12000            
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: 3290 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 17090 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -111.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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      HOH A 245  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 B   173                                                      
REMARK 465       G B   174                                                      
REMARK 465       C B   175                                                      
REMARK 465       C B   176                                                      
REMARK 465       G B   177                                                      
REMARK 465       G B   178                                                      
REMARK 465       C B   179                                                      
REMARK 465       A B   180                                                      
REMARK 465       U B   181                                                      
REMARK 465       G B   182                                                      
REMARK 465       G B   183                                                      
REMARK 465       U B   184                                                      
REMARK 465       C B   185                                                      
REMARK 465       C B   186                                                      
REMARK 465       C B   187                                                      
REMARK 465       A B   188                                                      
REMARK 465       G B   189                                                      
REMARK 465       C B   190                                                      
REMARK 465       C B   191                                                      
REMARK 465       U B   192                                                      
REMARK 465       C B   193                                                      
REMARK 465       C B   194                                                      
REMARK 465       U B   195                                                      
REMARK 465       C B   196                                                      
REMARK 465       G B   197                                                      
REMARK 465       C B   198                                                      
REMARK 465       U B   199                                                      
REMARK 465       G B   200                                                      
REMARK 465       G B   201                                                      
REMARK 465       C B   202                                                      
REMARK 465       G B   203                                                      
REMARK 465       C B   204                                                      
REMARK 465       C B   205                                                      
REMARK 465       G B   206                                                      
REMARK 465       G B   207                                                      
REMARK 465       C B   208                                                      
REMARK 465       U B   209                                                      
REMARK 465       G B   210                                                      
REMARK 465       G B   211                                                      
REMARK 465       G B   212                                                      
REMARK 465       C B   213                                                      
REMARK 465       A B   214                                                      
REMARK 465       A B   215                                                      
REMARK 465       C B   216                                                      
REMARK 465       A B   217                                                      
REMARK 465       C B   218                                                      
REMARK 465       C B   219                                                      
REMARK 465       A B   220                                                      
REMARK 465       U B   221                                                      
REMARK 465       U B   222                                                      
REMARK 465       G B   223                                                      
REMARK 465       C B   224                                                      
REMARK 465       A B   225                                                      
REMARK 465       C B   226                                                      
REMARK 465       U B   227                                                      
REMARK 465       C B   228                                                      
REMARK 465       C B   229                                                      
REMARK 465       G B   230                                                      
REMARK 465       G B   231                                                      
REMARK 465       U B   232                                                      
REMARK 465       G B   233                                                      
REMARK 465       G B   234                                                      
REMARK 465       C B   235                                                      
REMARK 465       G B   236                                                      
REMARK 465       A B   237                                                      
REMARK 465       A B   238                                                      
REMARK 465       U B   239                                                      
REMARK 465       G B   240                                                      
REMARK 465       G B   241                                                      
REMARK 465       G B   242                                                      
REMARK 465       A B   243                                                      
REMARK 465       C B   244                                                      
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    MSE A  97      -76.31   -108.27                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 102  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A  48   OG                                                     
REMARK 620 2 SER A  48   O    98.4                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 103  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  24   OD1                                                    
REMARK 620 2 ASP A  24   O    80.8                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 410  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C B 124   OP1                                                    
REMARK 620 2   C B 124   OP2  63.2                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 406  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C B 118   OP2                                                    
REMARK 620 2   G B 117   OP1 141.7                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 411  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C B 107   O2'                                                    
REMARK 620 2   C B 107   O2   99.0                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 409  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C B 136   OP2                                                    
REMARK 620 2   G B 135   O3'  53.6                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 403  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   A B 153   OP2                                                    
REMARK 620 2   C B 152   O2'  89.0                                              
REMARK 620 N                    1                                               
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 412  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1   C B 107   O3'                                                    
REMARK 620 2   A B 108   OP1  52.3                                              
REMARK 620 N                    1                                               
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 402                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 403                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 404                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 406                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 407                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 408                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 409                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 410                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 411                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 412                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 413                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 101                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 102                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 103                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4PRF   RELATED DB: PDB                                   
DBREF  4PR6 A    4    96  UNP    P09012   SNRPA_HUMAN      4     96             
DBREF  4PR6 B  101   244  PDB    4PR6     4PR6           101    244             
SEQADV 4PR6 HIS A   31  UNP  P09012    TYR    31 ENGINEERED MUTATION            
SEQADV 4PR6 ARG A   36  UNP  P09012    GLN    36 ENGINEERED MUTATION            
SEQADV 4PR6 MSE A   97  UNP  P09012              EXPRESSION TAG                 
SEQADV 4PR6 ALA A   98  UNP  P09012              EXPRESSION TAG                 
SEQRES   1 B  144    G   G   C   C   G   G   C   A   U   G   G   U   C          
SEQRES   2 B  144    C   C   A   G   C   C   U   C   C   U   C   G   C          
SEQRES   3 B  144    U   G   G   C   G   C   C   G   G   C   U   G   G          
SEQRES   4 B  144    G   C   A   A   C   A   C   C   A   U   U   G   C          
SEQRES   5 B  144    A   C   U   C   C   G   G   U   G   G   C   G   A          
SEQRES   6 B  144    A   U   G   G   G   A   C   G   G   C   C   G   G          
SEQRES   7 B  144    C   A   U   G   G   U   C   C   C   A   G   C   C          
SEQRES   8 B  144    U   C   C   U   C   G   C   U   G   G   C   G   C          
SEQRES   9 B  144    C   G   G   C   U   G   G   G   C   A   A   C   A          
SEQRES  10 B  144    C   C   A   U   U   G   C   A   C   U   C   C   G          
SEQRES  11 B  144    G   U   G   G   C   G   A   A   U   G   G   G   A          
SEQRES  12 B  144    C                                                          
SEQRES   1 A   95  PRO GLU THR ARG PRO ASN HIS THR ILE TYR ILE ASN ASN          
SEQRES   2 A   95  LEU ASN GLU LYS ILE LYS LYS ASP GLU LEU LYS LYS SER          
SEQRES   3 A   95  LEU HIS ALA ILE PHE SER ARG PHE GLY GLN ILE LEU ASP          
SEQRES   4 A   95  ILE LEU VAL SER ARG SER LEU LYS MSE ARG GLY GLN ALA          
SEQRES   5 A   95  PHE VAL ILE PHE LYS GLU VAL SER SER ALA THR ASN ALA          
SEQRES   6 A   95  LEU ARG SER MSE GLN GLY PHE PRO PHE TYR ASP LYS PRO          
SEQRES   7 A   95  MSE ARG ILE GLN TYR ALA LYS THR ASP SER ASP ILE ILE          
SEQRES   8 A   95  ALA LYS MSE ALA                                              
MODRES 4PR6 MSE A   51  MET  SELENOMETHIONINE                                   
MODRES 4PR6 MSE A   72  MET  SELENOMETHIONINE                                   
MODRES 4PR6 MSE A   82  MET  SELENOMETHIONINE                                   
MODRES 4PR6 MSE A   97  MET  SELENOMETHIONINE                                   
HET    MSE  A  51      16                                                       
HET    MSE  A  72      17                                                       
HET    MSE  A  82      17                                                       
HET    MSE  A  97      17                                                       
HET     MG  B 401       1                                                       
HET     MG  B 402       1                                                       
HET     MG  B 403       1                                                       
HET     MG  B 404       1                                                       
HET     MG  B 405       1                                                       
HET     MG  B 406       1                                                       
HET     MG  B 407       1                                                       
HET     MG  B 408       1                                                       
HET     MG  B 409       1                                                       
HET     MG  B 410       2                                                       
HET     MG  B 411       1                                                       
HET     MG  B 412       1                                                       
HET     MG  B 413       1                                                       
HET     MG  A 101       1                                                       
HET     MG  A 102       1                                                       
HET     MG  A 103       1                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
HETNAM      MG MAGNESIUM ION                                                    
FORMUL   2  MSE    4(C5 H11 N O2 SE)                                            
FORMUL   3   MG    16(MG 2+)                                                    
FORMUL  19  HOH   *83(H2 O)                                                     
HELIX    1   1 LYS A   22  SER A   35  1                                  14    
HELIX    2   2 ARG A   36  GLY A   38  5                                   3    
HELIX    3   3 GLU A   61  GLN A   73  1                                  13    
HELIX    4   4 SER A   91  LYS A   96  1                                   6    
SHEET    1   A 4 ILE A  40  VAL A  45  0                                        
SHEET    2   A 4 ALA A  55  PHE A  59 -1  O  ILE A  58   N  LEU A  41           
SHEET    3   A 4 THR A  11  ASN A  15 -1  N  ILE A  14   O  ALA A  55           
SHEET    4   A 4 ARG A  83  TYR A  86 -1  O  GLN A  85   N  TYR A  13           
SHEET    1   B 2 PRO A  76  PHE A  77  0                                        
SHEET    2   B 2 LYS A  80  PRO A  81 -1  O  LYS A  80   N  PHE A  77           
LINK         C   LYS A  50                 N   MSE A  51     1555   1555  1.33  
LINK         C   MSE A  51                 N   ARG A  52     1555   1555  1.33  
LINK         C   SER A  71                 N   MSE A  72     1555   1555  1.33  
LINK         C   MSE A  72                 N   GLN A  73     1555   1555  1.33  
LINK         C   PRO A  81                 N   MSE A  82     1555   1555  1.32  
LINK         C   MSE A  82                 N   ARG A  83     1555   1555  1.33  
LINK         C   LYS A  96                 N   MSE A  97     1555   1555  1.33  
LINK         C   MSE A  97                 N   ALA A  98     1555   1555  1.33  
LINK         OG  SER A  48                MG    MG A 102     1555   1555  2.05  
LINK         OD1 ASP A  24                MG    MG A 103     1555   1555  2.23  
LINK        MG    MG B 404                 O   HOH B 509     1555   1555  2.24  
LINK         OP1A  C B 124                MG  A MG B 410     1555   1555  2.44  
LINK         OP2A  C B 124                MG  A MG B 410     1555   1555  2.45  
LINK         OP2   C B 118                MG    MG B 406     1555   1555  2.48  
LINK         O   SER A  48                MG    MG A 102     1555   1555  2.49  
LINK         O2'   C B 107                MG    MG B 411     1555   1555  2.55  
LINK         OP2   C B 119                MG    MG B 407     1555   1555  2.58  
LINK         O2    C B 107                MG    MG B 411     1555   1555  2.59  
LINK         OP2   C B 136                MG    MG B 409     1555   1555  2.64  
LINK         OP2   A B 153                MG    MG B 403     1555   1555  2.71  
LINK         O3'   C B 107                MG    MG B 412     1555   1555  2.78  
LINK         O2'   C B 152                MG    MG B 403     1555   1555  2.79  
LINK         OP1   A B 108                MG    MG B 412     1555   1555  2.88  
LINK         OP1B  C B 124                MG  B MG B 410     1555   1555  2.88  
LINK         O3'   G B 135                MG    MG B 409     1555   1555  2.90  
LINK         OP1   G B 117                MG    MG B 406     1555   1555  3.00  
LINK         O   ASP A  24                MG    MG A 103     1555   1555  3.00  
SITE     1 AC1  2   G B 169    G B 170                                          
SITE     1 AC2  3   C B 152    A B 153  HOH B 501                               
SITE     1 AC3  2   G B 138  HOH B 509                                          
SITE     1 AC4  2   G B 117    C B 118                                          
SITE     1 AC5  1   C B 119                                                     
SITE     1 AC6  1   G B 110                                                     
SITE     1 AC7  2   G B 135    C B 136                                          
SITE     1 AC8  2   U B 123    C B 124                                          
SITE     1 AC9  1   C B 107                                                     
SITE     1 BC1  2   C B 107    A B 108                                          
SITE     1 BC2  1   A B 116                                                     
SITE     1 BC3  2 LYS A  23  LYS A  27                                          
SITE     1 BC4  4 SER A  48  LEU A  49  LYS A  50  MSE A  51                    
SITE     1 BC5  1 ASP A  24                                                     
CRYST1  109.350  109.350  190.680  90.00  90.00 120.00 H 3 2        18          
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      0.009145  0.005280  0.000000        0.00000                         
SCALE2      0.000000  0.010560  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005244        0.00000