PDB Short entry for 1SZ1
HEADER    TRANSFERASE/RNA                         02-APR-04   1SZ1              
TITLE     MECHANISM OF CCA-ADDING ENZYMES SPECIFICITY REVEALED BY CRYSTAL       
TITLE    2 STRUCTURES OF TERNARY COMPLEXES                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: T-RNA (76-MER);                                            
COMPND   3 CHAIN: E, F;                                                         
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: TRNA NUCLEOTIDYLTRANSFERASE;                               
COMPND   7 CHAIN: A, B;                                                         
COMPND   8 SYNONYM: TRNA ADENYLYLTRANSFERASE, TRNA CCA-PYROPHOSPHORYLASE, CCA-  
COMPND   9 ADDING ENZYME;                                                       
COMPND  10 EC: 2.7.7.25;                                                        
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 SYNTHETIC: YES;                                                      
SOURCE   3 MOL_ID: 2;                                                           
SOURCE   4 ORGANISM_SCIENTIFIC: ARCHAEOGLOBUS FULGIDUS;                         
SOURCE   5 ORGANISM_TAXID: 2234;                                                
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21;                            
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21                                       
KEYWDS    CCA-ADDING ENZYME, SPECIFICITY, TRNA, COMPLEX, TRANSFERASE-RNA        
KEYWDS   2 COMPLEX                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    Y.XIONG,T.A.STEITZ                                                    
REVDAT   5   23-AUG-23 1SZ1    1       LINK                                     
REVDAT   4   13-JUL-11 1SZ1    1       VERSN                                    
REVDAT   3   24-FEB-09 1SZ1    1       VERSN                                    
REVDAT   2   31-AUG-04 1SZ1    1       SOURCE                                   
REVDAT   1   10-AUG-04 1SZ1    0                                                
JRNL        AUTH   Y.XIONG,T.A.STEITZ                                           
JRNL        TITL   MECHANISM OF TRANSFER RNA MATURATION BY CCA-ADDING ENZYME    
JRNL        TITL 2 WITHOUT USING AN OLIGONUCLEOTIDE TEMPLATE.                   
JRNL        REF    NATURE                        V. 430   640 2004              
JRNL        REFN                   ISSN 0028-0836                               
JRNL        PMID   15295590                                                     
JRNL        DOI    10.1038/NATURE02711                                          
REMARK   2                                                                      
REMARK   2 RESOLUTION.    6.21 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 6.21                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 44.72                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 100.0                          
REMARK   3   NUMBER OF REFLECTIONS             : 10111                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.361                           
REMARK   3   R VALUE            (WORKING SET) : 0.360                           
REMARK   3   FREE R VALUE                     : 0.380                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.400                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 574                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 8                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 6.21                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 6.63                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1724                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 100.0                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.4010                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 96                           
REMARK   3   BIN FREE R VALUE                    : 0.4180                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 7260                                    
REMARK   3   NUCLEIC ACID ATOMS       : 3296                                    
REMARK   3   HETEROGEN ATOMS          : 0                                       
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 101.7                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.48000                                             
REMARK   3    B22 (A**2) : -0.48000                                             
REMARK   3    B33 (A**2) : 0.73000                                              
REMARK   3    B12 (A**2) : -0.24000                                             
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 2.455         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.715                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.740                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A): 11108 ; 0.011 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 15706 ; 1.378 ; 2.344       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   872 ; 4.969 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   388 ;31.188 ;22.784       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1390 ;16.385 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    80 ;15.002 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1794 ; 0.129 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  7286 ; 0.012 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  5116 ; 0.221 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  7346 ; 0.301 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   325 ; 0.167 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    57 ; 0.321 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     4 ; 0.209 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  4352 ; 0.007 ; 2.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  7028 ; 0.015 ; 4.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  6756 ; 0.773 ; 5.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  8678 ; 0.847 ; 8.000       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : 2                                 
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 1                                  
REMARK   3     CHAIN NAMES                    : A B                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     A      1       A     437      2                      
REMARK   3           1     B      1       B     437      2                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   TIGHT POSITIONAL   1    A    (A):   1748 ;  0.01 ;  0.05           
REMARK   3   MEDIUM POSITIONAL  1    A    (A):   1882 ;  0.02 ;  0.50           
REMARK   3   TIGHT THERMAL      1    A (A**2):   1748 ;  0.00 ;  0.50           
REMARK   3   MEDIUM THERMAL     1    A (A**2):   1882 ;  0.02 ;  2.00           
REMARK   3                                                                      
REMARK   3  NCS GROUP NUMBER               : 2                                  
REMARK   3     CHAIN NAMES                    : E F                             
REMARK   3     NUMBER OF COMPONENTS NCS GROUP : 1                               
REMARK   3       COMPONENT C  SSSEQI  TO  C   SSSEQI   CODE                     
REMARK   3           1     E      1       E      76      2                      
REMARK   3           1     F      1       F      76      2                      
REMARK   3                   GROUP CHAIN        COUNT   RMS     WEIGHT          
REMARK   3   MEDIUM POSITIONAL  2    B    (A):   1648 ;  0.09 ;  0.50           
REMARK   3   MEDIUM THERMAL     2    B (A**2):   1648 ;  0.06 ;  2.00           
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1SZ1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-APR-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000022108.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
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                       : A1                                 
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : NULL                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 10111                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 6.210                              
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     (%) : NULL                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.10200                            
REMARK 200  R SYM                      (I) : 0.10200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 6.21                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : NULL                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1R89                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 84.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): NULL                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: (NH4)2SO4, PH 7.0, VAPOR DIFFUSION,      
REMARK 280  HANGING DROP, TEMPERATURE 277K                                      
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3 2 1                          
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                                                                      
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                                                                      
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: TETRAMERIC                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, F, 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 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
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   RES CSSEQI ATM2   DEVIATION                     
REMARK 500      G E  53   O3'   5MU E  54   P       0.074                       
REMARK 500    5MU E  54   O3'   PSU E  55   P       0.075                       
REMARK 500    PSU E  55   O3'     C E  56   P      -0.078                       
REMARK 500      C E  56   O3'     G E  57   P       0.081                       
REMARK 500      G E  57   O3'   1MA E  58   P      -0.354                       
REMARK 500    1MA E  58   O3'     U E  59   P      -0.142                       
REMARK 500      G F  53   O3'   5MU F  54   P       0.075                       
REMARK 500    5MU F  54   O3'   PSU F  55   P       0.074                       
REMARK 500      C F  56   O3'     G F  57   P      -0.158                       
REMARK 500      G F  57   O3'   1MA F  58   P      -0.126                       
REMARK 500    1MA F  58   O3'     U F  59   P       0.098                       
REMARK 500      C F  70   N1      C F  70   C2     -0.066                       
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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      G E  18   C5' -  C4' -  O4' ANGL. DEV. =  -9.7 DEGREES          
REMARK 500      C E  56   C3' -  O3' -  P   ANGL. DEV. = -11.7 DEGREES          
REMARK 500      G E  57   O3' -  P   -  OP2 ANGL. DEV. =   6.9 DEGREES          
REMARK 500    1MA E  58   C3' -  O3' -  P   ANGL. DEV. =   9.1 DEGREES          
REMARK 500      A E  67   C3' -  O3' -  P   ANGL. DEV. =   7.6 DEGREES          
REMARK 500      U E  68   OP1 -  P   -  OP2 ANGL. DEV. =  -9.5 DEGREES          
REMARK 500      U E  68   C3' -  O3' -  P   ANGL. DEV. = -10.0 DEGREES          
REMARK 500      U E  69   OP1 -  P   -  OP2 ANGL. DEV. =  -9.9 DEGREES          
REMARK 500      C F   2   O4' -  C4' -  C3' ANGL. DEV. =  -6.3 DEGREES          
REMARK 500      C F   2   C3' -  C2' -  C1' ANGL. DEV. =  -6.5 DEGREES          
REMARK 500      G F  18   C5' -  C4' -  O4' ANGL. DEV. =  -9.8 DEGREES          
REMARK 500      C F  56   C3' -  O3' -  P   ANGL. DEV. =  -8.5 DEGREES          
REMARK 500      G F  57   C3' -  O3' -  P   ANGL. DEV. =  21.5 DEGREES          
REMARK 500    1MA F  58   O3' -  P   -  O5' ANGL. DEV. = -27.4 DEGREES          
REMARK 500    1MA F  58   O3' -  P   -  OP1 ANGL. DEV. =  19.6 DEGREES          
REMARK 500    1MA F  58   C3' -  O3' -  P   ANGL. DEV. =  26.0 DEGREES          
REMARK 500      U F  59   O3' -  P   -  O5' ANGL. DEV. =  19.6 DEGREES          
REMARK 500      U F  59   O3' -  P   -  OP2 ANGL. DEV. = -22.4 DEGREES          
REMARK 500      U F  59   O3' -  P   -  OP1 ANGL. DEV. =   7.3 DEGREES          
REMARK 500      U F  69   OP1 -  P   -  OP2 ANGL. DEV. =  -9.1 DEGREES          
REMARK 500      C F  70   OP1 -  P   -  OP2 ANGL. DEV. =  -9.5 DEGREES          
REMARK 500      C F  70   N3  -  C4  -  C5  ANGL. DEV. =  -2.8 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    LYS A   2      -21.10     85.07                                   
REMARK 500    VAL A   3      -61.69     81.11                                   
REMARK 500    PRO A  16      -85.81    -44.92                                   
REMARK 500    ASP A  17       29.38     23.28                                   
REMARK 500    SER A  57       53.98    -91.10                                   
REMARK 500    PHE A  70     -153.37   -125.73                                   
REMARK 500    ALA A  95     -108.78     52.63                                   
REMARK 500    CYS A 114     -159.86   -125.63                                   
REMARK 500    LYS A 116       21.63    -72.19                                   
REMARK 500    GLU A 119      134.44     95.36                                   
REMARK 500    PRO A 120     -156.19    -78.46                                   
REMARK 500    LYS A 121      -17.28     66.61                                   
REMARK 500    ASN A 122       40.88   -103.84                                   
REMARK 500    LEU A 186      -65.72    125.60                                   
REMARK 500    ARG A 197        1.32    -66.46                                   
REMARK 500    PRO A 259      139.66    -37.32                                   
REMARK 500    GLU A 261       91.26     26.24                                   
REMARK 500    MET A 314       83.04     46.84                                   
REMARK 500    LEU A 316      -75.11    -92.64                                   
REMARK 500    SER A 323     -167.77    -76.13                                   
REMARK 500    GLU A 325      -52.82   -125.53                                   
REMARK 500    ASP A 351       69.45    -68.20                                   
REMARK 500    PRO A 424       44.79    -74.56                                   
REMARK 500    LYS B   2      -20.96     83.22                                   
REMARK 500    VAL B   3      -60.93     81.61                                   
REMARK 500    PRO B  16      -84.92    -45.11                                   
REMARK 500    ASP B  17       29.03     22.83                                   
REMARK 500    GLU B  18       26.24    -79.94                                   
REMARK 500    ARG B  33      -70.85    -59.32                                   
REMARK 500    SER B  57       53.43    -90.47                                   
REMARK 500    GLU B  68       20.96    -72.53                                   
REMARK 500    PHE B  70     -152.84   -125.46                                   
REMARK 500    ALA B  95     -108.45     51.96                                   
REMARK 500    CYS B 114     -159.39   -125.16                                   
REMARK 500    LYS B 116       21.60    -70.85                                   
REMARK 500    GLU B 119      133.92     96.00                                   
REMARK 500    PRO B 120     -157.09    -77.93                                   
REMARK 500    LYS B 121      -17.08     66.39                                   
REMARK 500    ASN B 122       41.22   -103.71                                   
REMARK 500    LEU B 186      -66.96    125.10                                   
REMARK 500    ARG B 197        0.80    -65.48                                   
REMARK 500    PRO B 259      139.86    -37.39                                   
REMARK 500    GLU B 261       91.28     26.36                                   
REMARK 500    MET B 314       82.54     47.80                                   
REMARK 500    LEU B 316      -73.68    -92.93                                   
REMARK 500    SER B 323     -167.60    -76.07                                   
REMARK 500    GLU B 325      -53.15   -125.69                                   
REMARK 500    ASP B 351       70.06    -67.74                                   
REMARK 500    PRO B 424       44.95    -74.55                                   
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 E  19         0.05    SIDE CHAIN                              
REMARK 500      G F  19         0.05    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1TFW   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1TFY   RELATED DB: PDB                                   
DBREF  1SZ1 A    1   437  UNP    O28126   CCA_ARCFU        1    437             
DBREF  1SZ1 B    1   437  UNP    O28126   CCA_ARCFU        1    437             
DBREF  1SZ1 E    1    76  PDB    1SZ1     1SZ1             1     76             
DBREF  1SZ1 F    1    76  PDB    1SZ1     1SZ1             1     76             
SEQRES   1 E   76    G   C   G   G   A   U   U   U   A 2MG   C   U   C          
SEQRES   2 E   76    A   G H2U H2U   G   G   G   A   G   A   G   C M2G          
SEQRES   3 E   76    C   C   A   G   A OMC   U OMG   A   A  YG   A PSU          
SEQRES   4 E   76  5MC   U   G   G   A   G 7MG   U   C 5MC   U   G   U          
SEQRES   5 E   76    G 5MU PSU   C   G 1MA   U   C   C   A   C   A   G          
SEQRES   6 E   76    A   A   U   U   C   G   C   A   C   C   A                  
SEQRES   1 F   76    G   C   G   G   A   U   U   U   A 2MG   C   U   C          
SEQRES   2 F   76    A   G H2U H2U   G   G   G   A   G   A   G   C M2G          
SEQRES   3 F   76    C   C   A   G   A OMC   U OMG   A   A  YG   A PSU          
SEQRES   4 F   76  5MC   U   G   G   A   G 7MG   U   C 5MC   U   G   U          
SEQRES   5 F   76    G 5MU PSU   C   G 1MA   U   C   C   A   C   A   G          
SEQRES   6 F   76    A   A   U   U   C   G   C   A   C   C   A                  
SEQRES   1 A  437  MET LYS VAL GLU GLU ILE LEU GLU LYS ALA LEU GLU LEU          
SEQRES   2 A  437  VAL ILE PRO ASP GLU GLU GLU VAL ARG LYS GLY ARG GLU          
SEQRES   3 A  437  ALA GLU GLU GLU LEU ARG ARG ARG LEU ASP GLU LEU GLY          
SEQRES   4 A  437  VAL GLU TYR VAL PHE VAL GLY SER TYR ALA ARG ASN THR          
SEQRES   5 A  437  TRP LEU LYS GLY SER LEU GLU ILE ASP VAL PHE LEU LEU          
SEQRES   6 A  437  PHE PRO GLU GLU PHE SER LYS GLU GLU LEU ARG GLU ARG          
SEQRES   7 A  437  GLY LEU GLU ILE GLY LYS ALA VAL LEU ASP SER TYR GLU          
SEQRES   8 A  437  ILE ARG TYR ALA GLU HIS PRO TYR VAL HIS GLY VAL VAL          
SEQRES   9 A  437  LYS GLY VAL GLU VAL ASP VAL VAL PRO CYS TYR LYS LEU          
SEQRES  10 A  437  LYS GLU PRO LYS ASN ILE LYS SER ALA VAL ASP ARG THR          
SEQRES  11 A  437  PRO PHE HIS HIS LYS TRP LEU GLU GLY ARG ILE LYS GLY          
SEQRES  12 A  437  LYS GLU ASN GLU VAL ARG LEU LEU LYS GLY PHE LEU LYS          
SEQRES  13 A  437  ALA ASN GLY ILE TYR GLY ALA GLU TYR LYS VAL ARG GLY          
SEQRES  14 A  437  PHE SER GLY TYR LEU CYS GLU LEU LEU ILE VAL PHE TYR          
SEQRES  15 A  437  GLY SER PHE LEU GLU THR VAL LYS ASN ALA ARG ARG TRP          
SEQRES  16 A  437  THR ARG ARG THR VAL ILE ASP VAL ALA LYS GLY GLU VAL          
SEQRES  17 A  437  ARG LYS GLY GLU GLU PHE PHE VAL VAL ASP PRO VAL ASP          
SEQRES  18 A  437  GLU LYS ARG ASN VAL ALA ALA ASN LEU SER LEU ASP ASN          
SEQRES  19 A  437  LEU ALA ARG PHE VAL HIS LEU CYS ARG GLU PHE MET GLU          
SEQRES  20 A  437  ALA PRO SER LEU GLY PHE PHE LYS PRO LYS HIS PRO LEU          
SEQRES  21 A  437  GLU ILE GLU PRO GLU ARG LEU ARG LYS ILE VAL GLU GLU          
SEQRES  22 A  437  ARG GLY THR ALA VAL PHE ALA VAL LYS PHE ARG LYS PRO          
SEQRES  23 A  437  ASP ILE VAL ASP ASP ASN LEU TYR PRO GLN LEU GLU ARG          
SEQRES  24 A  437  ALA SER ARG LYS ILE PHE GLU PHE LEU GLU ARG GLU ASN          
SEQRES  25 A  437  PHE MET PRO LEU ARG SER ALA PHE LYS ALA SER GLU GLU          
SEQRES  26 A  437  PHE CYS TYR LEU LEU PHE GLU CYS GLN ILE LYS GLU ILE          
SEQRES  27 A  437  SER ARG VAL PHE ARG ARG MET GLY PRO GLN PHE GLU ASP          
SEQRES  28 A  437  GLU ARG ASN VAL LYS LYS PHE LEU SER ARG ASN ARG ALA          
SEQRES  29 A  437  PHE ARG PRO PHE ILE GLU ASN GLY ARG TRP TRP ALA PHE          
SEQRES  30 A  437  GLU MET ARG LYS PHE THR THR PRO GLU GLU GLY VAL ARG          
SEQRES  31 A  437  SER TYR ALA SER THR HIS TRP HIS THR LEU GLY LYS ASN          
SEQRES  32 A  437  VAL GLY GLU SER ILE ARG GLU TYR PHE GLU ILE ILE SER          
SEQRES  33 A  437  GLY GLU LYS LEU PHE LYS GLU PRO VAL THR ALA GLU LEU          
SEQRES  34 A  437  CYS GLU MET MET GLY VAL LYS ASP                              
SEQRES   1 B  437  MET LYS VAL GLU GLU ILE LEU GLU LYS ALA LEU GLU LEU          
SEQRES   2 B  437  VAL ILE PRO ASP GLU GLU GLU VAL ARG LYS GLY ARG GLU          
SEQRES   3 B  437  ALA GLU GLU GLU LEU ARG ARG ARG LEU ASP GLU LEU GLY          
SEQRES   4 B  437  VAL GLU TYR VAL PHE VAL GLY SER TYR ALA ARG ASN THR          
SEQRES   5 B  437  TRP LEU LYS GLY SER LEU GLU ILE ASP VAL PHE LEU LEU          
SEQRES   6 B  437  PHE PRO GLU GLU PHE SER LYS GLU GLU LEU ARG GLU ARG          
SEQRES   7 B  437  GLY LEU GLU ILE GLY LYS ALA VAL LEU ASP SER TYR GLU          
SEQRES   8 B  437  ILE ARG TYR ALA GLU HIS PRO TYR VAL HIS GLY VAL VAL          
SEQRES   9 B  437  LYS GLY VAL GLU VAL ASP VAL VAL PRO CYS TYR LYS LEU          
SEQRES  10 B  437  LYS GLU PRO LYS ASN ILE LYS SER ALA VAL ASP ARG THR          
SEQRES  11 B  437  PRO PHE HIS HIS LYS TRP LEU GLU GLY ARG ILE LYS GLY          
SEQRES  12 B  437  LYS GLU ASN GLU VAL ARG LEU LEU LYS GLY PHE LEU LYS          
SEQRES  13 B  437  ALA ASN GLY ILE TYR GLY ALA GLU TYR LYS VAL ARG GLY          
SEQRES  14 B  437  PHE SER GLY TYR LEU CYS GLU LEU LEU ILE VAL PHE TYR          
SEQRES  15 B  437  GLY SER PHE LEU GLU THR VAL LYS ASN ALA ARG ARG TRP          
SEQRES  16 B  437  THR ARG ARG THR VAL ILE ASP VAL ALA LYS GLY GLU VAL          
SEQRES  17 B  437  ARG LYS GLY GLU GLU PHE PHE VAL VAL ASP PRO VAL ASP          
SEQRES  18 B  437  GLU LYS ARG ASN VAL ALA ALA ASN LEU SER LEU ASP ASN          
SEQRES  19 B  437  LEU ALA ARG PHE VAL HIS LEU CYS ARG GLU PHE MET GLU          
SEQRES  20 B  437  ALA PRO SER LEU GLY PHE PHE LYS PRO LYS HIS PRO LEU          
SEQRES  21 B  437  GLU ILE GLU PRO GLU ARG LEU ARG LYS ILE VAL GLU GLU          
SEQRES  22 B  437  ARG GLY THR ALA VAL PHE ALA VAL LYS PHE ARG LYS PRO          
SEQRES  23 B  437  ASP ILE VAL ASP ASP ASN LEU TYR PRO GLN LEU GLU ARG          
SEQRES  24 B  437  ALA SER ARG LYS ILE PHE GLU PHE LEU GLU ARG GLU ASN          
SEQRES  25 B  437  PHE MET PRO LEU ARG SER ALA PHE LYS ALA SER GLU GLU          
SEQRES  26 B  437  PHE CYS TYR LEU LEU PHE GLU CYS GLN ILE LYS GLU ILE          
SEQRES  27 B  437  SER ARG VAL PHE ARG ARG MET GLY PRO GLN PHE GLU ASP          
SEQRES  28 B  437  GLU ARG ASN VAL LYS LYS PHE LEU SER ARG ASN ARG ALA          
SEQRES  29 B  437  PHE ARG PRO PHE ILE GLU ASN GLY ARG TRP TRP ALA PHE          
SEQRES  30 B  437  GLU MET ARG LYS PHE THR THR PRO GLU GLU GLY VAL ARG          
SEQRES  31 B  437  SER TYR ALA SER THR HIS TRP HIS THR LEU GLY LYS ASN          
SEQRES  32 B  437  VAL GLY GLU SER ILE ARG GLU TYR PHE GLU ILE ILE SER          
SEQRES  33 B  437  GLY GLU LYS LEU PHE LYS GLU PRO VAL THR ALA GLU LEU          
SEQRES  34 B  437  CYS GLU MET MET GLY VAL LYS ASP                              
MODRES 1SZ1 2MG E   10    G  2N-METHYLGUANOSINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 H2U E   16    U  5,6-DIHYDROURIDINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 H2U E   17    U  5,6-DIHYDROURIDINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 M2G E   26    G  N2-DIMETHYLGUANOSINE-5'-MONOPHOSPHATE              
MODRES 1SZ1 OMC E   32    C  O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE               
MODRES 1SZ1 OMG E   34    G  O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE               
MODRES 1SZ1  YG E   37    G  WYBUTOSINE                                         
MODRES 1SZ1 PSU E   39    U  PSEUDOURIDINE-5'-MONOPHOSPHATE                     
MODRES 1SZ1 5MC E   40    C  5-METHYLCYTIDINE-5'-MONOPHOSPHATE                  
MODRES 1SZ1 7MG E   46    G                                                     
MODRES 1SZ1 5MC E   49    C  5-METHYLCYTIDINE-5'-MONOPHOSPHATE                  
MODRES 1SZ1 5MU E   54    U  5-METHYLURIDINE 5'-MONOPHOSPHATE                   
MODRES 1SZ1 PSU E   55    U  PSEUDOURIDINE-5'-MONOPHOSPHATE                     
MODRES 1SZ1 1MA E   58    A                                                     
MODRES 1SZ1 2MG F   10    G  2N-METHYLGUANOSINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 H2U F   16    U  5,6-DIHYDROURIDINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 H2U F   17    U  5,6-DIHYDROURIDINE-5'-MONOPHOSPHATE                
MODRES 1SZ1 M2G F   26    G  N2-DIMETHYLGUANOSINE-5'-MONOPHOSPHATE              
MODRES 1SZ1 OMC F   32    C  O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE               
MODRES 1SZ1 OMG F   34    G  O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE               
MODRES 1SZ1  YG F   37    G  WYBUTOSINE                                         
MODRES 1SZ1 PSU F   39    U  PSEUDOURIDINE-5'-MONOPHOSPHATE                     
MODRES 1SZ1 5MC F   40    C  5-METHYLCYTIDINE-5'-MONOPHOSPHATE                  
MODRES 1SZ1 7MG F   46    G                                                     
MODRES 1SZ1 5MC F   49    C  5-METHYLCYTIDINE-5'-MONOPHOSPHATE                  
MODRES 1SZ1 5MU F   54    U  5-METHYLURIDINE 5'-MONOPHOSPHATE                   
MODRES 1SZ1 PSU F   55    U  PSEUDOURIDINE-5'-MONOPHOSPHATE                     
MODRES 1SZ1 1MA F   58    A                                                     
HET    2MG  E  10      24                                                       
HET    H2U  E  16      20                                                       
HET    H2U  E  17      20                                                       
HET    M2G  E  26      25                                                       
HET    OMC  E  32      21                                                       
HET    OMG  E  34      24                                                       
HET     YG  E  37      39                                                       
HET    PSU  E  39      20                                                       
HET    5MC  E  40      21                                                       
HET    7MG  E  46      24                                                       
HET    5MC  E  49      21                                                       
HET    5MU  E  54      21                                                       
HET    PSU  E  55      20                                                       
HET    1MA  E  58      23                                                       
HET    2MG  F  10      24                                                       
HET    H2U  F  16      20                                                       
HET    H2U  F  17      20                                                       
HET    M2G  F  26      25                                                       
HET    OMC  F  32      21                                                       
HET    OMG  F  34      24                                                       
HET     YG  F  37      39                                                       
HET    PSU  F  39      20                                                       
HET    5MC  F  40      21                                                       
HET    7MG  F  46      24                                                       
HET    5MC  F  49      21                                                       
HET    5MU  F  54      21                                                       
HET    PSU  F  55      20                                                       
HET    1MA  F  58      23                                                       
HETNAM     2MG 2N-METHYLGUANOSINE-5'-MONOPHOSPHATE                              
HETNAM     H2U 5,6-DIHYDROURIDINE-5'-MONOPHOSPHATE                              
HETNAM     M2G N2-DIMETHYLGUANOSINE-5'-MONOPHOSPHATE                            
HETNAM     OMC O2'-METHYLYCYTIDINE-5'-MONOPHOSPHATE                             
HETNAM     OMG O2'-METHYLGUANOSINE-5'-MONOPHOSPHATE                             
HETNAM      YG WYBUTOSINE                                                       
HETNAM     PSU PSEUDOURIDINE-5'-MONOPHOSPHATE                                   
HETNAM     5MC 5-METHYLCYTIDINE-5'-MONOPHOSPHATE                                
HETNAM     7MG 7N-METHYL-8-HYDROGUANOSINE-5'-MONOPHOSPHATE                      
HETNAM     5MU 5-METHYLURIDINE 5'-MONOPHOSPHATE                                 
HETNAM     1MA 6-HYDRO-1-METHYLADENOSINE-5'-MONOPHOSPHATE                       
HETSYN      YG Y-BASE; 1H-IMIDAZO(1,2-ALPHA)PURINE-7-BUTANOIC ACID,4,           
HETSYN   2  YG  9-DIHYDRO-ALPHA-((METHOXYCARBONYL)AMINO)-4,6-DIMETHYL-          
HETSYN   3  YG  9-OXO-METHYL ESTER                                              
FORMUL   1  2MG    2(C11 H16 N5 O8 P)                                           
FORMUL   1  H2U    4(C9 H15 N2 O9 P)                                            
FORMUL   1  M2G    2(C12 H18 N5 O8 P)                                           
FORMUL   1  OMC    2(C10 H16 N3 O8 P)                                           
FORMUL   1  OMG    2(C11 H16 N5 O8 P)                                           
FORMUL   1   YG    2(C21 H29 N6 O12 P)                                          
FORMUL   1  PSU    4(C9 H13 N2 O9 P)                                            
FORMUL   1  5MC    4(C10 H16 N3 O8 P)                                           
FORMUL   1  7MG    2(C11 H18 N5 O8 P)                                           
FORMUL   1  5MU    2(C10 H15 N2 O9 P)                                           
FORMUL   1  1MA    2(C11 H16 N5 O7 P)                                           
HELIX    1   1 VAL A    3  ALA A   10  1                                   8    
HELIX    2   2 LEU A   11  VAL A   14  5                                   4    
HELIX    3   3 GLU A   20  GLU A   37  1                                  18    
HELIX    4   4 GLY A   46  ARG A   50  1                                   5    
HELIX    5   5 SER A   71  LEU A   87  1                                  17    
HELIX    6   6 ALA A  126  ASP A  128  5                                   3    
HELIX    7   7 ARG A  129  GLU A  138  1                                  10    
HELIX    8   8 LYS A  144  ASN A  158  1                                  15    
HELIX    9   9 SER A  171  GLY A  183  1                                  13    
HELIX   10  10 LEU A  186  ARG A  193  1                                   8    
HELIX   11  11 SER A  231  ALA A  248  1                                  18    
HELIX   12  12 SER A  250  PHE A  254  5                                   5    
HELIX   13  13 GLU A  263  GLY A  275  1                                  13    
HELIX   14  14 VAL A  289  GLU A  311  1                                  23    
HELIX   15  15 ASP A  351  ARG A  361  1                                  11    
HELIX   16  16 THR A  384  HIS A  396  1                                  13    
HELIX   17  17 GLY A  401  TYR A  411  1                                  11    
HELIX   18  18 GLY A  417  LYS A  422  1                                   6    
HELIX   19  19 VAL A  425  GLY A  434  1                                  10    
HELIX   20  20 VAL B    3  ALA B   10  1                                   8    
HELIX   21  21 LEU B   11  VAL B   14  5                                   4    
HELIX   22  22 GLU B   20  GLU B   37  1                                  18    
HELIX   23  23 GLY B   46  ARG B   50  1                                   5    
HELIX   24  24 SER B   71  LEU B   87  1                                  17    
HELIX   25  25 ALA B  126  ASP B  128  5                                   3    
HELIX   26  26 ARG B  129  GLU B  138  1                                  10    
HELIX   27  27 LYS B  144  ASN B  158  1                                  15    
HELIX   28  28 SER B  171  GLY B  183  1                                  13    
HELIX   29  29 LEU B  186  ARG B  193  1                                   8    
HELIX   30  30 SER B  231  ALA B  248  1                                  18    
HELIX   31  31 SER B  250  PHE B  254  5                                   5    
HELIX   32  32 GLU B  263  GLY B  275  1                                  13    
HELIX   33  33 VAL B  289  GLU B  311  1                                  23    
HELIX   34  34 ASP B  351  ARG B  361  1                                  11    
HELIX   35  35 THR B  384  HIS B  396  1                                  13    
HELIX   36  36 GLY B  401  TYR B  411  1                                  11    
HELIX   37  37 GLY B  417  LYS B  422  1                                   6    
HELIX   38  38 VAL B  425  GLY B  434  1                                  10    
SHEET    1   A 5 GLU A  41  VAL A  45  0                                        
SHEET    2   A 5 GLU A  59  LEU A  65 -1  O  PHE A  63   N  VAL A  43           
SHEET    3   A 5 VAL A 107  PRO A 113  1  O  VAL A 112   N  LEU A  64           
SHEET    4   A 5 TYR A  99  VAL A 104 -1  N  GLY A 102   O  VAL A 109           
SHEET    5   A 5 SER A  89  ARG A  93 -1  N  ARG A  93   O  TYR A  99           
SHEET    1   B 3 GLU A 207  LYS A 210  0                                        
SHEET    2   B 3 THR A 199  ASP A 202 -1  N  VAL A 200   O  ARG A 209           
SHEET    3   B 3 PHE A 215  VAL A 217  1  O  PHE A 215   N  ILE A 201           
SHEET    1   C 4 PRO A 315  ALA A 322  0                                        
SHEET    2   C 4 PHE A 326  CYS A 333 -1  O  GLU A 332   N  LEU A 316           
SHEET    3   C 4 ALA A 277  ARG A 284 -1  N  PHE A 283   O  CYS A 327           
SHEET    4   C 4 GLU A 413  SER A 416 -1  O  GLU A 413   N  LYS A 282           
SHEET    1   D 3 VAL A 341  GLN A 348  0                                        
SHEET    2   D 3 ARG A 373  MET A 379 -1  O  TRP A 374   N  PRO A 347           
SHEET    3   D 3 PHE A 368  ILE A 369 -1  N  PHE A 368   O  TRP A 375           
SHEET    1   E 5 GLU B  41  VAL B  45  0                                        
SHEET    2   E 5 GLU B  59  LEU B  65 -1  O  PHE B  63   N  VAL B  43           
SHEET    3   E 5 VAL B 107  PRO B 113  1  O  VAL B 112   N  LEU B  64           
SHEET    4   E 5 TYR B  99  VAL B 104 -1  N  GLY B 102   O  VAL B 109           
SHEET    5   E 5 SER B  89  ARG B  93 -1  N  ARG B  93   O  TYR B  99           
SHEET    1   F 3 GLU B 207  LYS B 210  0                                        
SHEET    2   F 3 THR B 199  ASP B 202 -1  N  VAL B 200   O  ARG B 209           
SHEET    3   F 3 PHE B 215  VAL B 217  1  O  PHE B 215   N  ILE B 201           
SHEET    1   G 4 PRO B 315  ALA B 322  0                                        
SHEET    2   G 4 PHE B 326  CYS B 333 -1  O  GLU B 332   N  LEU B 316           
SHEET    3   G 4 ALA B 277  ARG B 284 -1  N  PHE B 283   O  CYS B 327           
SHEET    4   G 4 GLU B 413  SER B 416 -1  O  GLU B 413   N  LYS B 282           
SHEET    1   H 3 VAL B 341  GLN B 348  0                                        
SHEET    2   H 3 ARG B 373  MET B 379 -1  O  TRP B 374   N  PRO B 347           
SHEET    3   H 3 PHE B 368  ILE B 369 -1  N  PHE B 368   O  TRP B 375           
LINK         O3'   A E   9                 P   2MG E  10     1555   1555  1.67  
LINK         O3' 2MG E  10                 P     C E  11     1555   1555  1.64  
LINK         O3'   G E  15                 P   H2U E  16     1555   1555  1.60  
LINK         O3' H2U E  16                 P   H2U E  17     1555   1555  1.62  
LINK         O3' H2U E  17                 P     G E  18     1555   1555  1.58  
LINK         O3'   C E  25                 P   M2G E  26     1555   1555  1.67  
LINK         O3' M2G E  26                 P     C E  27     1555   1555  1.65  
LINK         O3'   A E  31                 P   OMC E  32     1555   1555  1.67  
LINK         O3' OMC E  32                 P     U E  33     1555   1555  1.66  
LINK         O3'   U E  33                 P   OMG E  34     1555   1555  1.67  
LINK         O3' OMG E  34                 P     A E  35     1555   1555  1.67  
LINK         O3'   A E  36                 P    YG E  37     1555   1555  1.67  
LINK         O3'  YG E  37                 P     A E  38     1555   1555  1.66  
LINK         O3'   A E  38                 P   PSU E  39     1555   1555  1.61  
LINK         O3' PSU E  39                 P   5MC E  40     1555   1555  1.66  
LINK         O3' 5MC E  40                 P     U E  41     1555   1555  1.65  
LINK         O3'   G E  45                 P   7MG E  46     1555   1555  1.65  
LINK         O3' 7MG E  46                 P     U E  47     1555   1555  1.67  
LINK         O3'   C E  48                 P   5MC E  49     1555   1555  1.64  
LINK         O3' 5MC E  49                 P     U E  50     1555   1555  1.67  
LINK         O3'   G E  53                 P   5MU E  54     1555   1555  1.68  
LINK         O3' 5MU E  54                 P   PSU E  55     1555   1555  1.68  
LINK         O3' PSU E  55                 P     C E  56     1555   1555  1.53  
LINK         O3'   G E  57                 P   1MA E  58     1555   1555  1.25  
LINK         O3' 1MA E  58                 P     U E  59     1555   1555  1.47  
LINK         O3'   A F   9                 P   2MG F  10     1555   1555  1.68  
LINK         O3' 2MG F  10                 P     C F  11     1555   1555  1.64  
LINK         O3'   G F  15                 P   H2U F  16     1555   1555  1.60  
LINK         O3' H2U F  16                 P   H2U F  17     1555   1555  1.54  
LINK         O3' H2U F  17                 P     G F  18     1555   1555  1.59  
LINK         O3'   C F  25                 P   M2G F  26     1555   1555  1.67  
LINK         O3' M2G F  26                 P     C F  27     1555   1555  1.65  
LINK         O3'   A F  31                 P   OMC F  32     1555   1555  1.66  
LINK         O3' OMC F  32                 P     U F  33     1555   1555  1.66  
LINK         O3'   U F  33                 P   OMG F  34     1555   1555  1.66  
LINK         O3' OMG F  34                 P     A F  35     1555   1555  1.67  
LINK         O3'   A F  36                 P    YG F  37     1555   1555  1.67  
LINK         O3'  YG F  37                 P     A F  38     1555   1555  1.65  
LINK         O3'   A F  38                 P   PSU F  39     1555   1555  1.61  
LINK         O3' PSU F  39                 P   5MC F  40     1555   1555  1.66  
LINK         O3' 5MC F  40                 P     U F  41     1555   1555  1.66  
LINK         O3'   G F  45                 P   7MG F  46     1555   1555  1.64  
LINK         O3' 7MG F  46                 P     U F  47     1555   1555  1.67  
LINK         O3'   C F  48                 P   5MC F  49     1555   1555  1.64  
LINK         O3' 5MC F  49                 P     U F  50     1555   1555  1.67  
LINK         O3'   G F  53                 P   5MU F  54     1555   1555  1.68  
LINK         O3' 5MU F  54                 P   PSU F  55     1555   1555  1.68  
LINK         O3' PSU F  55                 P     C F  56     1555   1555  1.60  
LINK         O3'   G F  57                 P   1MA F  58     1555   1555  1.48  
LINK         O3' 1MA F  58                 P     U F  59     1555   1555  1.71  
CRYST1  218.403  218.403  170.263  90.00  90.00 120.00 P 3 2 1      12          
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      0.004579  0.002644  0.000000        0.00000                         
SCALE2      0.000000  0.005287  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005873        0.00000