HEADER    TRANSCRIPTION REPRESSOR                 25-SEP-03   1R1U               
TITLE     CRYSTAL STRUCTURE OF THE METAL-SENSING TRANSCRIPTIONAL REPRESSOR CZRA  
TITLE    2 FROM STAPHYLOCOCCUS AUREUS IN THE APO-FORM                            
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: REPRESSOR PROTEIN;                                          
COMPND   3 CHAIN: A, B, C, D;                                                    
COMPND   4 SYNONYM: CZRA;                                                        
COMPND   5 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS;                           
SOURCE   3 ORGANISM_TAXID: 1280;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                        
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                      
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                  
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID                                
KEYWDS    ZINC, DNA BINDING, TRANSCRIPTIONAL REGULATION, WINGED HTH PROTEIN,     
KEYWDS   2 TRANSCRIPTION REPRESSOR                                               
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    C.EICKEN,M.A.PENNELLA,X.CHEN,K.M.KOSHLAP,M.L.VANZILE,J.C.SACCHETTINI,  
AUTHOR   2 D.P.GIEDROC                                                           
REVDAT   3   23-AUG-23 1R1U    1       REMARK                                    
REVDAT   2   24-FEB-09 1R1U    1       VERSN                                     
REVDAT   1   18-MAY-04 1R1U    0                                                 
JRNL        AUTH   C.EICKEN,M.A.PENNELLA,X.CHEN,K.M.KOSHLAP,M.L.VANZILE,         
JRNL        AUTH 2 J.C.SACCHETTINI,D.P.GIEDROC                                   
JRNL        TITL   A METAL-LIGAND-MEDIATED INTERSUBUNIT ALLOSTERIC SWITCH IN     
JRNL        TITL 2 RELATED SMTB/ARSR ZINC SENSOR PROTEINS.                       
JRNL        REF    J.MOL.BIOL.                   V. 333   683 2003               
JRNL        REFN                   ISSN 0022-2836                                
JRNL        PMID   14568530                                                      
JRNL        DOI    10.1016/J.JMB.2003.09.007                                     
REMARK   2                                                                       
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : REFMAC 5.1.24                                         
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) : 2.00                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 18.90                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.4                            
REMARK   3   NUMBER OF REFLECTIONS             : 25674                           
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) : 0.206                            
REMARK   3   R VALUE            (WORKING SET) : 0.202                            
REMARK   3   FREE R VALUE                     : 0.256                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 8.400                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 2355                             
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) : 1382                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2360                        
REMARK   3   BIN FREE R VALUE SET COUNT          : 114                           
REMARK   3   BIN FREE R VALUE                    : 0.2680                        
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 3016                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 0                                        
REMARK   3   SOLVENT ATOMS            : 198                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                            
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 33.80                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : 0.74000                                               
REMARK   3    B22 (A**2) : 0.74000                                               
REMARK   3    B33 (A**2) : -1.12000                                              
REMARK   3    B12 (A**2) : 0.37000                                               
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): 0.211          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.189          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.140          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 5.028          
REMARK   3                                                                       
REMARK   3 CORRELATION COEFFICIENTS.                                             
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.946                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.913                          
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT       
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3062 ; 0.022 ; 0.021        
REMARK   3   BOND LENGTHS OTHERS               (A):  2819 ; 0.002 ; 0.020        
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4122 ; 1.818 ; 1.938        
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  6583 ; 1.033 ; 3.000        
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   376 ; 6.974 ; 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):   489 ; 0.125 ; 0.200        
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  3324 ; 0.011 ; 0.020        
REMARK   3   GENERAL PLANES OTHERS             (A):   552 ; 0.014 ; 0.020        
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   769 ; 0.250 ; 0.200        
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  3257 ; 0.250 ; 0.200        
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL        
REMARK   3   NON-BONDED TORSION OTHERS         (A):  1830 ; 0.090 ; 0.200        
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   132 ; 0.192 ; 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):    27 ; 0.226 ; 0.200        
REMARK   3   SYMMETRY VDW OTHERS               (A):    43 ; 0.258 ; 0.200        
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     3 ; 0.218 ; 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):  1890 ; 1.341 ; 1.500        
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3055 ; 2.410 ; 2.000        
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1172 ; 3.089 ; 3.000        
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1067 ; 5.053 ; 4.500        
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 : 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 RIDING    
REMARK   3  POSITIONS                                                            
REMARK   4                                                                       
REMARK   4 1R1U COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-SEP-03.                   
REMARK 100 THE DEPOSITION ID IS D_1000020334.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 04-OCT-02                           
REMARK 200  TEMPERATURE           (KELVIN) : 100                                 
REMARK 200  PH                             : 6.2                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : N                                   
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                      
REMARK 200  BEAMLINE                       : NULL                                
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU                              
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.54                                
REMARK 200  MONOCHROMATOR                  : NULL                                
REMARK 200  OPTICS                         : MIRRORS                             
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                         
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU)           
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                              
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 28209                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 21.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 3.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.7                                
REMARK 200  DATA REDUNDANCY                : 3.000                               
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : 0.03500                             
REMARK 200   FOR THE DATA SET  : 13.6000                             
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     (%) : 74.1                                
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : 0.13700                             
REMARK 200   FOR SHELL         : NULL                                
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: MOLREP V. 7.3.01                                       
REMARK 200 STARTING MODEL: PDB ENTRY 1R1T                                        
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 46.90                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: NACL, NA/K PHOSPHATE, PH 6.2, VAPOR       
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                            
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31                              
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -Y,X-Y,Z+1/3                                             
REMARK 290       3555   -X+Y,-X,Z+2/3                                            
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -0.500000 -0.866025  0.000000        0.00000             
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       51.16667             
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      102.33333             
REMARK 290                                                                       
REMARK 290 REMARK: NULL                                                          
REMARK 300                                                                       
REMARK 300 BIOMOLECULE: 1, 2                                                     
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                 
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                   
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON                
REMARK 300 BURIED SURFACE AREA.                                                  
REMARK 300 REMARK: THE BIOLOGICAL ASSEMBLY IS A DIMER. THE ASYMMETRIC UNIT       
REMARK 300 CONTAINS TWO DIMERS: A,B AND C,D.                                     
REMARK 350                                                                       
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN            
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                 
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS           
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                           
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                                
REMARK 350                                                                       
REMARK 350 BIOMOLECULE: 1                                                        
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                            
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                     
REMARK 350 SOFTWARE USED: PISA                                                   
REMARK 350 TOTAL BURIED SURFACE AREA: 2930 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 10250 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -23.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                   
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 350                                                                       
REMARK 350 BIOMOLECULE: 2                                                        
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                            
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                     
REMARK 350 SOFTWARE USED: PISA                                                   
REMARK 350 TOTAL BURIED SURFACE AREA: 3300 ANGSTROM**2                           
REMARK 350 SURFACE AREA OF THE COMPLEX: 10320 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -28.0 KCAL/MOL                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: C, D                                   
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     MET A     1                                                       
REMARK 465     SER A     2                                                       
REMARK 465     GLU A     3                                                       
REMARK 465     GLN A     4                                                       
REMARK 465     TYR A     5                                                       
REMARK 465     SER A     6                                                       
REMARK 465     GLU A     7                                                       
REMARK 465     ILE A     8                                                       
REMARK 465     GLU A   103                                                       
REMARK 465     SER A   104                                                       
REMARK 465     GLY A   105                                                       
REMARK 465     LEU A   106                                                       
REMARK 465     MET B     1                                                       
REMARK 465     SER B     2                                                       
REMARK 465     GLU B     3                                                       
REMARK 465     GLN B     4                                                       
REMARK 465     TYR B     5                                                       
REMARK 465     SER B     6                                                       
REMARK 465     GLU B     7                                                       
REMARK 465     ILE B     8                                                       
REMARK 465     LYS B   102                                                       
REMARK 465     GLU B   103                                                       
REMARK 465     SER B   104                                                       
REMARK 465     GLY B   105                                                       
REMARK 465     LEU B   106                                                       
REMARK 465     MET C     1                                                       
REMARK 465     SER C     2                                                       
REMARK 465     GLU C     3                                                       
REMARK 465     GLN C     4                                                       
REMARK 465     TYR C     5                                                       
REMARK 465     SER C   104                                                       
REMARK 465     GLY C   105                                                       
REMARK 465     LEU C   106                                                       
REMARK 465     MET D     1                                                       
REMARK 465     SER D     2                                                       
REMARK 465     GLU D     3                                                       
REMARK 465     GLN D     4                                                       
REMARK 465     TYR D     5                                                       
REMARK 465     SER D     6                                                       
REMARK 465     GLU D     7                                                       
REMARK 465     ILE D     8                                                       
REMARK 465     SER D   104                                                       
REMARK 465     GLY D   105                                                       
REMARK 465     LEU D   106                                                       
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   OD2  ASP C    83     O    HOH C   125              2.15             
REMARK 500   O    HOH B   130     O    HOH B   153              2.18             
REMARK 500   NE2  GLN D    48     O    HOH D   146              2.19             
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    SER A  77   CB    SER A  77   OG      0.086                        
REMARK 500    SER B  77   CB    SER B  77   OG      0.080                        
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    ARG A  30   NE  -  CZ  -  NH1 ANGL. DEV. =   5.7 DEGREES           
REMARK 500    ARG A  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.8 DEGREES           
REMARK 500    ASP A  84   CB  -  CG  -  OD2 ANGL. DEV. =   6.8 DEGREES           
REMARK 500    ARG B  28   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES           
REMARK 500    ARG B  30   NE  -  CZ  -  NH1 ANGL. DEV. =   4.9 DEGREES           
REMARK 500    ARG B  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -7.0 DEGREES           
REMARK 500    ASP B  84   CB  -  CG  -  OD2 ANGL. DEV. =   6.5 DEGREES           
REMARK 500    ARG C  30   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES           
REMARK 500    ARG C  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.7 DEGREES           
REMARK 500    ASP C  84   CB  -  CG  -  OD2 ANGL. DEV. =   8.6 DEGREES           
REMARK 500    ARG D  30   NE  -  CZ  -  NH1 ANGL. DEV. =   4.8 DEGREES           
REMARK 500    ARG D  30   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.8 DEGREES           
REMARK 500    ASP D  84   CB  -  CG  -  OD2 ANGL. DEV. =   8.1 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    PRO A 101     -164.49    -31.78                                    
REMARK 500    GLU C   7     -116.18    -99.29                                    
REMARK 500    SER C  38      127.05   -170.09                                    
REMARK 500    GLU C  39      156.61    -45.93                                    
REMARK 500    GLN D  76      -82.86    -53.12                                    
REMARK 500    SER D  77     -168.79   -107.91                                    
REMARK 500    LYS D 102      103.32   -160.15                                    
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 500                                                                       
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                          
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                          
REMARK 500                                                                       
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH           
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED            
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND                
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                   
REMARK 500                                 MODEL     OMEGA                       
REMARK 500 GLU C    7     ILE C    8                 -137.26                     
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 900                                                                       
REMARK 900 RELATED ENTRIES                                                       
REMARK 900 RELATED ID: 1SMT   RELATED DB: PDB                                    
REMARK 900 SMTB IN ITS APO-FORM (2.2 ANG)                                        
REMARK 900 RELATED ID: 1R1T   RELATED DB: PDB                                    
REMARK 900 SMTB IN ITS APO-FORM (1.7 ANG)                                        
REMARK 900 RELATED ID: 1R1V   RELATED DB: PDB                                    
REMARK 900 ZN2-FORM OF CZRA                                                      
REMARK 900 RELATED ID: 1R22   RELATED DB: PDB                                    
REMARK 900 SMTB (C14S/C61S/C121S MUTANT) IN ITS ZN2-FORM                         
REMARK 900 RELATED ID: 1R23   RELATED DB: PDB                                    
REMARK 900 SMTB IN THE ZN1-FORM                                                  
DBREF  1R1U A    1   106  UNP    O85142   O85142_STAAU     1    106              
DBREF  1R1U B    1   106  UNP    O85142   O85142_STAAU     1    106              
DBREF  1R1U C    1   106  UNP    O85142   O85142_STAAU     1    106              
DBREF  1R1U D    1   106  UNP    O85142   O85142_STAAU     1    106              
SEQRES   1 A  106  MET SER GLU GLN TYR SER GLU ILE ASN THR ASP THR LEU           
SEQRES   2 A  106  GLU ARG VAL THR GLU ILE PHE LYS ALA LEU GLY ASP TYR           
SEQRES   3 A  106  ASN ARG ILE ARG ILE MET GLU LEU LEU SER VAL SER GLU           
SEQRES   4 A  106  ALA SER VAL GLY HIS ILE SER HIS GLN LEU ASN LEU SER           
SEQRES   5 A  106  GLN SER ASN VAL SER HIS GLN LEU LYS LEU LEU LYS SER           
SEQRES   6 A  106  VAL HIS LEU VAL LYS ALA LYS ARG GLN GLY GLN SER MET           
SEQRES   7 A  106  ILE TYR SER LEU ASP ASP ILE HIS VAL ALA THR MET LEU           
SEQRES   8 A  106  LYS GLN ALA ILE HIS HIS ALA ASN HIS PRO LYS GLU SER           
SEQRES   9 A  106  GLY LEU                                                       
SEQRES   1 B  106  MET SER GLU GLN TYR SER GLU ILE ASN THR ASP THR LEU           
SEQRES   2 B  106  GLU ARG VAL THR GLU ILE PHE LYS ALA LEU GLY ASP TYR           
SEQRES   3 B  106  ASN ARG ILE ARG ILE MET GLU LEU LEU SER VAL SER GLU           
SEQRES   4 B  106  ALA SER VAL GLY HIS ILE SER HIS GLN LEU ASN LEU SER           
SEQRES   5 B  106  GLN SER ASN VAL SER HIS GLN LEU LYS LEU LEU LYS SER           
SEQRES   6 B  106  VAL HIS LEU VAL LYS ALA LYS ARG GLN GLY GLN SER MET           
SEQRES   7 B  106  ILE TYR SER LEU ASP ASP ILE HIS VAL ALA THR MET LEU           
SEQRES   8 B  106  LYS GLN ALA ILE HIS HIS ALA ASN HIS PRO LYS GLU SER           
SEQRES   9 B  106  GLY LEU                                                       
SEQRES   1 C  106  MET SER GLU GLN TYR SER GLU ILE ASN THR ASP THR LEU           
SEQRES   2 C  106  GLU ARG VAL THR GLU ILE PHE LYS ALA LEU GLY ASP TYR           
SEQRES   3 C  106  ASN ARG ILE ARG ILE MET GLU LEU LEU SER VAL SER GLU           
SEQRES   4 C  106  ALA SER VAL GLY HIS ILE SER HIS GLN LEU ASN LEU SER           
SEQRES   5 C  106  GLN SER ASN VAL SER HIS GLN LEU LYS LEU LEU LYS SER           
SEQRES   6 C  106  VAL HIS LEU VAL LYS ALA LYS ARG GLN GLY GLN SER MET           
SEQRES   7 C  106  ILE TYR SER LEU ASP ASP ILE HIS VAL ALA THR MET LEU           
SEQRES   8 C  106  LYS GLN ALA ILE HIS HIS ALA ASN HIS PRO LYS GLU SER           
SEQRES   9 C  106  GLY LEU                                                       
SEQRES   1 D  106  MET SER GLU GLN TYR SER GLU ILE ASN THR ASP THR LEU           
SEQRES   2 D  106  GLU ARG VAL THR GLU ILE PHE LYS ALA LEU GLY ASP TYR           
SEQRES   3 D  106  ASN ARG ILE ARG ILE MET GLU LEU LEU SER VAL SER GLU           
SEQRES   4 D  106  ALA SER VAL GLY HIS ILE SER HIS GLN LEU ASN LEU SER           
SEQRES   5 D  106  GLN SER ASN VAL SER HIS GLN LEU LYS LEU LEU LYS SER           
SEQRES   6 D  106  VAL HIS LEU VAL LYS ALA LYS ARG GLN GLY GLN SER MET           
SEQRES   7 D  106  ILE TYR SER LEU ASP ASP ILE HIS VAL ALA THR MET LEU           
SEQRES   8 D  106  LYS GLN ALA ILE HIS HIS ALA ASN HIS PRO LYS GLU SER           
SEQRES   9 D  106  GLY LEU                                                       
FORMUL   5  HOH   *198(H2 O)                                                     
HELIX    1   1 ASN A    9  LEU A   23  1                                  15     
HELIX    2   2 ASP A   25  SER A   38  1                                  14     
HELIX    3   3 SER A   41  ASN A   50  1                                  10     
HELIX    4   4 SER A   52  VAL A   66  1                                  15     
HELIX    5   5 ASP A   84  ASN A   99  1                                  16     
HELIX    6   6 ASN B    9  GLY B   24  1                                  16     
HELIX    7   7 ASP B   25  SER B   38  1                                  14     
HELIX    8   8 SER B   41  ASN B   50  1                                  10     
HELIX    9   9 SER B   52  VAL B   66  1                                  15     
HELIX   10  10 ASP B   84  HIS B  100  1                                  17     
HELIX   11  11 ASN C    9  GLY C   24  1                                  16     
HELIX   12  12 ASP C   25  SER C   38  1                                  14     
HELIX   13  13 VAL C   42  ASN C   50  1                                   9     
HELIX   14  14 SER C   52  VAL C   66  1                                  15     
HELIX   15  15 ASP C   84  HIS C  100  1                                  17     
HELIX   16  16 ASN D    9  GLY D   24  1                                  16     
HELIX   17  17 ASP D   25  SER D   36  1                                  12     
HELIX   18  18 VAL D   42  ASN D   50  1                                   9     
HELIX   19  19 SER D   52  VAL D   66  1                                  15     
HELIX   20  20 ASP D   84  HIS D  100  1                                  17     
SHEET    1   A 2 VAL A  69  GLN A  74  0                                         
SHEET    2   A 2 SER A  77  LEU A  82 -1  O  SER A  81   N  LYS A  70            
SHEET    1   B 2 VAL B  69  GLN B  74  0                                         
SHEET    2   B 2 SER B  77  LEU B  82 -1  O  SER B  81   N  LYS B  70            
SHEET    1   C 3 ALA C  40  SER C  41  0                                         
SHEET    2   C 3 MET C  78  LEU C  82 -1  O  TYR C  80   N  ALA C  40            
SHEET    3   C 3 VAL C  69  ARG C  73 -1  N  LYS C  72   O  ILE C  79            
SHEET    1   D 3 ALA D  40  SER D  41  0                                         
SHEET    2   D 3 MET D  78  LEU D  82 -1  O  TYR D  80   N  ALA D  40            
SHEET    3   D 3 VAL D  69  ARG D  73 -1  N  LYS D  70   O  SER D  81            
CRYST1   50.110   50.110  153.500  90.00  90.00 120.00 P 31         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      0.019956  0.011522  0.000000        0.00000                          
SCALE2      0.000000  0.023043  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.006515        0.00000                          
END