PDB Short entry for 1SN8
HEADER    HYDROLASE                               10-MAR-04   1SN8              
TITLE     CRYSTAL STRUCTURE OF THE S1 DOMAIN OF RNASE E FROM E. COLI            
TITLE    2 (PB DERIVATIVE)                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: RIBONUCLEASE E;                                            
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: S1 DOMAIN (RESIDUES 35-125);                               
COMPND   5 SYNONYM: RNASE E;                                                    
COMPND   6 EC: 3.1.4.-;                                                         
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 GENE: RNE, AMS, HMP1, B1084;                                         
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21;                            
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 511693;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21;                                      
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET15B                                    
KEYWDS    OB-FOLD, RNA-BINDING, HYDROLASE                                       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.SCHUBERT,R.E.EDGE,P.LARIO,M.A.COOK,N.C.J.STRYNADKA,                 
AUTHOR   2 G.A.MACKIE,L.P.MCINTOSH                                              
REVDAT   2   24-FEB-09 1SN8    1       VERSN                                    
REVDAT   1   17-AUG-04 1SN8    0                                                
JRNL        AUTH   M.SCHUBERT,R.E.EDGE,P.LARIO,M.A.COOK,N.C.STRYNADKA,          
JRNL        AUTH 2 G.A.MACKIE,L.P.MCINTOSH                                      
JRNL        TITL   STRUCTURAL CHARACTERIZATION OF THE RNASE E S1                
JRNL        TITL 2 DOMAIN AND IDENTIFICATION OF ITS                             
JRNL        TITL 3 OLIGONUCLEOTIDE-BINDING AND DIMERIZATION                     
JRNL        TITL 4 INTERFACES.                                                  
JRNL        REF    J.MOL.BIOL.                   V. 341    37 2004              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   15312761                                                     
JRNL        DOI    10.1016/J.JMB.2004.05.061                                    
REMARK   1                                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5                                             
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                               
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 25.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 14555                          
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) : 0.185                           
REMARK   3   R VALUE            (WORKING SET) : 0.182                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 783                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 906                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2390                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 34                           
REMARK   3   BIN FREE R VALUE                    : 0.3150                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1327                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 2                                       
REMARK   3   SOLVENT ATOMS            : 229                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 22.98                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.75                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.90000                                              
REMARK   3    B22 (A**2) : 0.90000                                              
REMARK   3    B33 (A**2) : -1.79000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.160         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.155         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.105         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.841         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.952                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.928                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1336 ; 0.014 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  1227 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1801 ; 1.417 ; 1.965       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  2852 ; 0.746 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   166 ; 6.945 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   196 ; 0.083 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1500 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   273 ; 0.003 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   211 ; 0.206 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  1384 ; 0.250 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):   843 ; 0.086 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   150 ; 0.173 ; 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):     7 ; 0.141 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    67 ; 0.286 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    26 ; 0.157 ; 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):   834 ; 0.946 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1331 ; 1.752 ; 2.000       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   502 ; 2.519 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   470 ; 4.315 ; 4.500       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 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: HYDROGENS HAVE BEEN ADDED IN THE          
REMARK   3  RIDING POSITIONS                                                    
REMARK   4                                                                      
REMARK   4 1SN8 COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-MAR-04.                  
REMARK 100 THE RCSB ID CODE IS RCSB021846.                                      
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 01-JUN-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X8C                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.947390                           
REMARK 200  MONOCHROMATOR                  : SI (111) DOUBLE CRYSTAL            
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   : 15387                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 25.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.5                               
REMARK 200  DATA REDUNDANCY                : 6.925                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.09100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 17.5000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 86.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.33800                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.600                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: SAD                          
REMARK 200 SOFTWARE USED: SOLVE                                                 
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.60                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, SODIUM CACODYLATE, SODIUM      
REMARK 280  ACETATE, GLYCEROL, PH 6.5, VAPOR DIFFUSION, HANGING DROP,           
REMARK 280  TEMPERATURE 291K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2                        
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -Y+1/2,X+1/2,Z+1/4                                      
REMARK 290       4555   Y+1/2,-X+1/2,Z+3/4                                      
REMARK 290       5555   -X+1/2,Y+1/2,-Z+1/4                                     
REMARK 290       6555   X+1/2,-Y+1/2,-Z+3/4                                     
REMARK 290       7555   Y,X,-Z                                                  
REMARK 290       8555   -Y,-X,-Z+1/2                                            
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       43.95100            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000       35.29000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       35.29000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       21.97550            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       35.29000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000       35.29000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       65.92650            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       35.29000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       35.29000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       21.97550            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000       35.29000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       35.29000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       65.92650            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       43.95100            
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 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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A    30                                                      
REMARK 465     SER A    31                                                      
REMARK 465     HIS A    32                                                      
REMARK 465     MET A    33                                                      
REMARK 465     LEU A    34                                                      
REMARK 465     GLU A    35                                                      
REMARK 465     GLN A    36                                                      
REMARK 465     LYS A    37                                                      
REMARK 465     LYS A    38                                                      
REMARK 465     GLY B    30                                                      
REMARK 465     SER B    31                                                      
REMARK 465     HIS B    32                                                      
REMARK 465     MET B    33                                                      
REMARK 465     LEU B    34                                                      
REMARK 465     GLU B    35                                                      
REMARK 465     GLN B    36                                                      
REMARK 465     LYS B    37                                                      
REMARK 465     LYS B    38                                                      
REMARK 465     ASN B    81                                                      
REMARK 465     TYR B    82                                                      
REMARK 465     SER B    83                                                      
REMARK 465     ALA B    84                                                      
REMARK 465     HIS B    85                                                      
REMARK 465     GLY B    86                                                      
REMARK 465     ARG B    87                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     GLU A   63   CG    CD    OE1   OE2                               
REMARK 480     LYS A   91   CE    NZ                                            
REMARK 480     ARG A   95   CZ    NH1   NH2                                     
REMARK 480     LYS A  106   CE    NZ                                            
REMARK 480     ARG A  109   CZ    NH1   NH2                                     
REMARK 480     LYS B   91   CE    NZ                                            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NZ   LYS A   106     O    HOH A   689              2.10            
REMARK 500   CE   LYS A   106     O    HOH A   689              2.16            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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    ARG A  95   NE    ARG A  95   CZ     -0.122                       
REMARK 500    ARG A 109   NE    ARG A 109   CZ      0.172                       
REMARK 500    LYS B  91   CD    LYS B  91   CE     -0.173                       
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    ASP A  92   CB  -  CG  -  OD2 ANGL. DEV. =   6.4 DEGREES          
REMARK 500    ARG A  95   CD  -  NE  -  CZ  ANGL. DEV. = -13.1 DEGREES          
REMARK 500    ARG A  95   NE  -  CZ  -  NH1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ARG A  95   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.1 DEGREES          
REMARK 500    ARG A 109   CD  -  NE  -  CZ  ANGL. DEV. = -12.5 DEGREES          
REMARK 500    ARG A 109   NE  -  CZ  -  NH1 ANGL. DEV. =  -5.6 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500    ARG A 109         0.13    SIDE_CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620  (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;              
REMARK 620  SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                            
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              PB A 604  PB                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  85   NE2                                                    
REMARK 620 2 HOH B 216   O   142.8                                              
REMARK 620 3 HOH B 221   O   174.5  42.7                                        
REMARK 620 N                    1     2                                         
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              PB A 605  PB                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 GLU A  72   OE2                                                    
REMARK 620 2 HOH A 724   O   129.4                                              
REMARK 620 3 GLU A  72   OE1  48.9 116.4                                        
REMARK 620 N                    1     2                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PB A 604                  
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PB A 605                  
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1SLJ   RELATED DB: PDB                                   
REMARK 900 SOLUTION STRUCTURE                                                   
REMARK 900 RELATED ID: 6122   RELATED DB: BMRB                                  
REMARK 900 NMR ASSIGNMENT                                                       
REMARK 900 RELATED ID: 1SMX   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE NATIVE                                             
DBREF  1SN8 A   35   125  UNP    P21513   RNE_ECOLI       35    125             
DBREF  1SN8 B   35   125  UNP    P21513   RNE_ECOLI       35    125             
SEQADV 1SN8 GLY A   30  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 SER A   31  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 HIS A   32  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 MET A   33  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 LEU A   34  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 GLY B   30  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 SER B   31  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 HIS B   32  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 MET B   33  UNP  P21513              CLONING ARTIFACT               
SEQADV 1SN8 LEU B   34  UNP  P21513              CLONING ARTIFACT               
SEQRES   1 A   96  GLY SER HIS MET LEU GLU GLN LYS LYS ALA ASN ILE TYR          
SEQRES   2 A   96  LYS GLY LYS ILE THR ARG ILE GLU PRO SER LEU GLU ALA          
SEQRES   3 A   96  ALA PHE VAL ASP TYR GLY ALA GLU ARG HIS GLY PHE LEU          
SEQRES   4 A   96  PRO LEU LYS GLU ILE ALA ARG GLU TYR PHE PRO ALA ASN          
SEQRES   5 A   96  TYR SER ALA HIS GLY ARG PRO ASN ILE LYS ASP VAL LEU          
SEQRES   6 A   96  ARG GLU GLY GLN GLU VAL ILE VAL GLN ILE ASP LYS GLU          
SEQRES   7 A   96  GLU ARG GLY ASN LYS GLY ALA ALA LEU THR THR PHE ILE          
SEQRES   8 A   96  SER LEU ALA GLY SER                                          
SEQRES   1 B   96  GLY SER HIS MET LEU GLU GLN LYS LYS ALA ASN ILE TYR          
SEQRES   2 B   96  LYS GLY LYS ILE THR ARG ILE GLU PRO SER LEU GLU ALA          
SEQRES   3 B   96  ALA PHE VAL ASP TYR GLY ALA GLU ARG HIS GLY PHE LEU          
SEQRES   4 B   96  PRO LEU LYS GLU ILE ALA ARG GLU TYR PHE PRO ALA ASN          
SEQRES   5 B   96  TYR SER ALA HIS GLY ARG PRO ASN ILE LYS ASP VAL LEU          
SEQRES   6 B   96  ARG GLU GLY GLN GLU VAL ILE VAL GLN ILE ASP LYS GLU          
SEQRES   7 B   96  GLU ARG GLY ASN LYS GLY ALA ALA LEU THR THR PHE ILE          
SEQRES   8 B   96  SER LEU ALA GLY SER                                          
HET     PB  A 604       1                                                       
HET     PB  A 605       1                                                       
HETNAM      PB LEAD (II) ION                                                    
FORMUL   3   PB    2(PB 2+)                                                     
FORMUL   5  HOH   *229(H2 O)                                                    
HELIX    1   1 PRO A   51  LEU A   53  5                                   3    
HELIX    2   2 LYS A   71  ILE A   73  5                                   3    
HELIX    3   3 ALA A   74  PHE A   78  5                                   5    
HELIX    4   4 ASN A   89  VAL A   93  5                                   5    
HELIX    5   5 PRO B   51  LEU B   53  5                                   3    
HELIX    6   6 LYS B   71  ILE B   73  5                                   3    
HELIX    7   7 ALA B   74  PHE B   78  5                                   5    
HELIX    8   8 ASN B   89  LEU B   94  1                                   6    
SHEET    1   A 6 TYR A  42  GLU A  50  0                                        
SHEET    2   A 6 ALA A  55  ASP A  59 -1  O  PHE A  57   N  ARG A  48           
SHEET    3   A 6 GLY A  66  PRO A  69 -1  O  LEU A  68   N  ALA A  56           
SHEET    4   A 6 ALA A 115  THR A 117  1  O  LEU A 116   N  PHE A  67           
SHEET    5   A 6 GLU A  99  LYS A 106 -1  N  ASP A 105   O  ALA A 115           
SHEET    6   A 6 TYR A  42  GLU A  50 -1  N  GLY A  44   O  VAL A 100           
SHEET    1   B 6 TYR B  42  GLU B  50  0                                        
SHEET    2   B 6 ALA B  55  ASP B  59 -1  O  ALA B  55   N  GLU B  50           
SHEET    3   B 6 GLY B  66  PRO B  69 -1  O  GLY B  66   N  VAL B  58           
SHEET    4   B 6 ALA B 115  THR B 117  1  O  LEU B 116   N  PHE B  67           
SHEET    5   B 6 GLU B  99  LYS B 106 -1  N  ASP B 105   O  ALA B 115           
SHEET    6   B 6 TYR B  42  GLU B  50 -1  N  GLY B  44   O  VAL B 100           
LINK        PB    PB A 604                 NE2 HIS A  85     1555   1555  2.49  
LINK        PB    PB A 605                 OE2 GLU A  72     1555   1555  2.23  
LINK        PB    PB A 605                 O   HOH A 724     1555   1555  2.92  
LINK        PB    PB A 605                 OE1 GLU A  72     1555   1555  2.86  
LINK        PB    PB A 604                 O   HOH B 216     1555   3655  3.46  
LINK        PB    PB A 604                 O   HOH B 221     1555   3655  2.70  
SITE     1 AC1  2 HIS A  85  HOH B 221                                          
SITE     1 AC2  2 GLU A  72  HOH A 724                                          
CRYST1   70.580   70.580   87.902  90.00  90.00  90.00 P 41 21 2    16          
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      0.014168  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014168  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011376        0.00000