HEADER    TRANSCRIPTION                           30-AUG-10   2XPW              
TITLE     TETR(D) IN COMPLEX WITH OXYTETRACYCLINE AND MAGNESIUM.                
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: TETRACYCLINE REPRESSOR PROTEIN CLASS D;                    
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: RESIDUES 2-208;                                            
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 OTHER_DETAILS: C-TERMINUS REMOVED                                    
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 83333;                                      
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: K-12;                                      
SOURCE   7 EXPRESSION_SYSTEM_VARIANT: DELTA H1 DELTA TRP;                       
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PWH 610                                   
KEYWDS    TRANSCRIPTION, TRANSCRIPTION REGULATOR, HELIX-TURN-HELIX, METAL       
KEYWDS   2 COORDINATION                                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    D.DALM,J.PROFT,G.J.PALM,W.HINRICHS                                    
REVDAT   3   20-DEC-23 2XPW    1       REMARK LINK                              
REVDAT   2   24-JUL-19 2XPW    1       REMARK                                   
REVDAT   1   07-SEP-11 2XPW    0                                                
JRNL        AUTH   D.DALM,G.J.PALM,J.PROFT,W.HINRICHS                           
JRNL        TITL   TETR(D) IN COMPLEX WITH OXYTETRACYCLINE.                     
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   W.HINRICHS,C.KISKER,M.DUVEL,A.MULLER,K.TOVAR,W.HILLEN,       
REMARK   1  AUTH 2 W.SAENGER                                                    
REMARK   1  TITL   STRUCTURE OF THE TET REPRESSOR-TETRACYCLINE COMPLEX AND      
REMARK   1  TITL 2 REGULATION OF ANTIBIOTIC RESISTANCE.                         
REMARK   1  REF    SCIENCE                       V. 264   418 1994              
REMARK   1  REFN                   ISSN 0036-8075                               
REMARK   1  PMID   8153629                                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.44 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0102                                      
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) : 1.44                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 63.25                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 34700                          
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) : 0.178                           
REMARK   3   R VALUE            (WORKING SET) : 0.177                           
REMARK   3   FREE R VALUE                     : 0.205                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1826                            
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) : 1.44                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.48                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 2545                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 97.70                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2250                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 132                          
REMARK   3   BIN FREE R VALUE                    : 0.2710                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1641                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 49                                      
REMARK   3   SOLVENT ATOMS            : 284                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.80                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.20                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.47000                                              
REMARK   3    B22 (A**2) : 0.47000                                              
REMARK   3    B33 (A**2) : -0.94000                                             
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): 0.073         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.074         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.046         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.150         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.967                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.959                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1831 ; 0.019 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  1252 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2502 ; 1.777 ; 2.011       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  3035 ; 1.011 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   223 ; 5.240 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    90 ;38.787 ;23.222       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   308 ;13.432 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    20 ;18.214 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   281 ; 0.172 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2049 ; 0.012 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):   380 ; 0.002 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  1083 ; 1.154 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):   436 ; 0.323 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1745 ; 1.945 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   748 ; 2.751 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   757 ; 4.181 ; 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. U VALUES REFINED INDIVIDUALLY.                           
REMARK   4                                                                      
REMARK   4 2XPW COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 30-AUG-10.                  
REMARK 100 THE DEPOSITION ID IS D_1290045208.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 06-APR-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : EMBL/DESY, HAMBURG                 
REMARK 200  BEAMLINE                       : X31                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : MIRRORS                            
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MAR SCANNER 345 MM PLATE           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 34700                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.440                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 63.250                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.6                               
REMARK 200  DATA REDUNDANCY                : 3.200                              
REMARK 200  R MERGE                    (I) : 0.04000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 30.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.44                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.46                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.1                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.36000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.990                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: REFMAC                                                
REMARK 200 STARTING MODEL: PDB ENTRY 2TCT                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 42.00                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.13                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.45 M NA-MALONATE, 0.45 M NA            
REMARK 280  -SUCCINATE, 0.1 M NA-CACODYLATE PH 5.55                             
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 41 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       3555   -Y,X+1/2,Z+1/4                                          
REMARK 290       4555   Y+1/2,-X,Z+3/4                                          
REMARK 290       5555   -X+1/2,Y,-Z+3/4                                         
REMARK 290       6555   X,-Y+1/2,-Z+1/4                                         
REMARK 290       7555   Y+1/2,X+1/2,-Z+1/2                                      
REMARK 290       8555   -Y,-X,-Z                                                
REMARK 290       9555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290      10555   -X,-Y,Z                                                 
REMARK 290      11555   -Y+1/2,X,Z+3/4                                          
REMARK 290      12555   Y,-X+1/2,Z+1/4                                          
REMARK 290      13555   -X,Y+1/2,-Z+1/4                                         
REMARK 290      14555   X+1/2,-Y,-Z+3/4                                         
REMARK 290      15555   Y,X,-Z                                                  
REMARK 290      16555   -Y+1/2,-X+1/2,-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       33.44650            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000       33.44650            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       90.77650            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       45.38825            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000       33.44650            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000      136.16475            
REMARK 290   SMTRY1   5 -1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000      136.16475            
REMARK 290   SMTRY1   6  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       33.44650            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       45.38825            
REMARK 290   SMTRY1   7  0.000000  1.000000  0.000000       33.44650            
REMARK 290   SMTRY2   7  1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       90.77650            
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        0.00000            
REMARK 290   SMTRY1   9  1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY2   9  0.000000  1.000000  0.000000       33.44650            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       90.77650            
REMARK 290   SMTRY1  10 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  10  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1  11  0.000000 -1.000000  0.000000       33.44650            
REMARK 290   SMTRY2  11  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000  1.000000      136.16475            
REMARK 290   SMTRY1  12  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  12 -1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY3  12  0.000000  0.000000  1.000000       45.38825            
REMARK 290   SMTRY1  13 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000       33.44650            
REMARK 290   SMTRY3  13  0.000000  0.000000 -1.000000       45.38825            
REMARK 290   SMTRY1  14  1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY2  14  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  14  0.000000  0.000000 -1.000000      136.16475            
REMARK 290   SMTRY1  15  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2  15  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3  15  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1  16  0.000000 -1.000000  0.000000       33.44650            
REMARK 290   SMTRY2  16 -1.000000  0.000000  0.000000       33.44650            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000       90.77650            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 7510 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 19970 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -91.9 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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   BIOMT1   2 -1.000000  0.000000  0.000000       66.89300            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       66.89300            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A2032  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A2245  LIES ON A SPECIAL POSITION.                          
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   NH2  ARG A   158     O    HOH A  2234              1.98            
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    GLN A 149   CG    GLN A 149   CD      0.145                       
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 104   NE  -  CZ  -  NH1 ANGL. DEV. =   3.1 DEGREES          
REMARK 500    ARG A 104   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.8 DEGREES          
REMARK 500    ARG A 171   NE  -  CZ  -  NH1 ANGL. DEV. =   4.9 DEGREES          
REMARK 500    ARG A 171   NE  -  CZ  -  NH2 ANGL. DEV. =  -5.3 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    TYR A  66       64.32   -112.74                                   
REMARK 500    ARG A 158      150.39    176.76                                   
REMARK 500    ALA A 160      -76.11    -58.00                                   
REMARK 500    ALA A 161     -177.11   -178.75                                   
REMARK 500    LEU A 204     -121.93     47.90                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2032        DISTANCE =  6.01 ANGSTROMS                       
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600                                                                      
REMARK 600 OXTETRACYCLINE                                                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 223  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 100   NE2                                                    
REMARK 620 2 OTC A 222   O11 167.9                                              
REMARK 620 3 OTC A 222   O12  88.8  80.2                                        
REMARK 620 4 HOH A2166   O    95.6  95.3 175.5                                  
REMARK 620 5 HOH A2217   O    93.6  92.5  95.3  85.3                            
REMARK 620 6 HOH A2282   O    90.4  85.1  92.9  86.2 171.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE OTC A 222                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 302                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL A 303                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 223                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MES A 777                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2XGC   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A DESIGNED HETERODIMERIC VARIANT T -A(I)B OF    
REMARK 900 THE TETRACYCLINE REPRESSOR                                           
REMARK 900 RELATED ID: 1BJZ   RELATED DB: PDB                                   
REMARK 900 TETRACYCLINE CHELATED MG2+ -ION INITIATES HELIX UNWINDING FOR TET    
REMARK 900 REPRESSOR INDUCTION                                                  
REMARK 900 RELATED ID: 3ZQG   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF TETRACYCLINE REPRESSOR IN COMPLEX WITH ANTIINDUCER      
REMARK 900 PEPTIDE-TAP2                                                         
REMARK 900 RELATED ID: 2X9D   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR (CLASS D) IN COMPLEX WITH ISO-7- CHLORTETRACYCLINE     
REMARK 900 RELATED ID: 3ZQH   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF TETRACYCLINE REPRESSOR IN COMPLEX WITH INDUCER PEPTIDE- 
REMARK 900 TIP3                                                                 
REMARK 900 RELATED ID: 2TRT   RELATED DB: PDB                                   
REMARK 900 TETRACYCLINE REPRESSOR CLASS D                                       
REMARK 900 RELATED ID: 2XPV   RELATED DB: PDB                                   
REMARK 900 TETR(D) IN COMPLEX WITH MINOCYCLINE AND MG.                          
REMARK 900 RELATED ID: 2VKV   RELATED DB: PDB                                   
REMARK 900 TETR (BD) VARIANT L17G WITH REVERSE PHENOTYPE                        
REMARK 900 RELATED ID: 1ORK   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR, CLASS D IN COMPLEX WITH 9-(N,N- DIMETHYLGLYCYLAMIDO)- 
REMARK 900 6-DEMETHYL-6-DEOXY-TETRACYCLINE                                      
REMARK 900 RELATED ID: 2XGE   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A DESIGNED HETERODIMERIC VARIANT T -A(A)B OF    
REMARK 900 THE TETRACYCLINE REPRESSOR                                           
REMARK 900 RELATED ID: 2X6O   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR CLASS D IN COMPLEX WITH 7-CHLOR-2- CYANO-ISO-          
REMARK 900 TETRACYCLINE                                                         
REMARK 900 RELATED ID: 1A6I   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR, CLASS D VARIANT                                       
REMARK 900 RELATED ID: 1QPI   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF TETRACYCLINE REPRESSOR/OPERATOR COMPLEX         
REMARK 900 RELATED ID: 2VKE   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR CLASS D COMPLEXED WITH COBALT AND TETRACYCLINE         
REMARK 900 RELATED ID: 2XGD   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF A DESIGNED HOMODIMERIC VARIANT T- A(L)A(L) OF   
REMARK 900 THE TETRACYCLINE REPRESSOR                                           
REMARK 900 RELATED ID: 1DU7   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF TET REPRESSOR CLASS D WITH 4- EPI- TETRACYCLINE 
REMARK 900 RELATED ID: 2XRL   RELATED DB: PDB                                   
REMARK 900 TET-REPRESSOR CLASS D T103A WITH DOXYCYCLINE                         
REMARK 900 RELATED ID: 2XPT   RELATED DB: PDB                                   
REMARK 900 TETR(D) IN COMPLEX WITH MINOCYCLINE AND MAGNESIUM.                   
REMARK 900 RELATED ID: 2XPU   RELATED DB: PDB                                   
REMARK 900 TETR(D) IN COMPLEX WITH ANHYDROTETRACYCLINE.                         
REMARK 900 RELATED ID: 2XB5   RELATED DB: PDB                                   
REMARK 900 TET REPRESSOR (CLASS D) IN COMPLEX WITH 7- IODOTETRACYCLINE          
REMARK 900 RELATED ID: 3ZQI   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF TETRACYCLINE REPRESSOR IN COMPLEX WITH INDUCER PEPTIDE- 
REMARK 900 TIP2                                                                 
REMARK 900 RELATED ID: 3ZQF   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF TETRACYCLINE REPRESSOR IN COMPLEX WITH ANTIINDUCER      
REMARK 900 PEPTIDE-TAP1                                                         
REMARK 900 RELATED ID: 2XPS   RELATED DB: PDB                                   
REMARK 900 TETR(D) IN COMPLEX WITH ANHYDROTETRACYCLINE AND MAGNESIUM            
REMARK 900 RELATED ID: 1BJ0   RELATED DB: PDB                                   
REMARK 900 TETRACYCLINE CHELATED MG2+ -ION INITIATES HELIX UNWINDING FOR TET    
REMARK 900 REPRESSOR INDUCTION                                                  
REMARK 900 RELATED ID: 2TCT   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1BJY   RELATED DB: PDB                                   
REMARK 900 TETRACYCLINE CHELATED MG2+ -ION INITIATES HELIX UNWINDING FOR TET    
REMARK 900 REPRESSOR INDUCTION                                                  
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 C-TERMINUS (209-218) REMOVED FOR BETTER CRYSTALLIZATION              
DBREF  2XPW A    2   208  UNP    P0ACT4   TETR4_ECOLX      2    208             
SEQADV 2XPW SER A    2  UNP  P0ACT4    ALA     2 CLONING ARTIFACT               
SEQRES   1 A  207  SER ARG LEU ASN ARG GLU SER VAL ILE ASP ALA ALA LEU          
SEQRES   2 A  207  GLU LEU LEU ASN GLU THR GLY ILE ASP GLY LEU THR THR          
SEQRES   3 A  207  ARG LYS LEU ALA GLN LYS LEU GLY ILE GLU GLN PRO THR          
SEQRES   4 A  207  LEU TYR TRP HIS VAL LYS ASN LYS ARG ALA LEU LEU ASP          
SEQRES   5 A  207  ALA LEU ALA VAL GLU ILE LEU ALA ARG HIS HIS ASP TYR          
SEQRES   6 A  207  SER LEU PRO ALA ALA GLY GLU SER TRP GLN SER PHE LEU          
SEQRES   7 A  207  ARG ASN ASN ALA MET SER PHE ARG ARG ALA LEU LEU ARG          
SEQRES   8 A  207  TYR ARG ASP GLY ALA LYS VAL HIS LEU GLY THR ARG PRO          
SEQRES   9 A  207  ASP GLU LYS GLN TYR ASP THR VAL GLU THR GLN LEU ARG          
SEQRES  10 A  207  PHE MET THR GLU ASN GLY PHE SER LEU ARG ASP GLY LEU          
SEQRES  11 A  207  TYR ALA ILE SER ALA VAL SER HIS PHE THR LEU GLY ALA          
SEQRES  12 A  207  VAL LEU GLU GLN GLN GLU HIS THR ALA ALA LEU THR ASP          
SEQRES  13 A  207  ARG PRO ALA ALA PRO ASP GLU ASN LEU PRO PRO LEU LEU          
SEQRES  14 A  207  ARG GLU ALA LEU GLN ILE MET ASP SER ASP ASP GLY GLU          
SEQRES  15 A  207  GLN ALA PHE LEU HIS GLY LEU GLU SER LEU ILE ARG GLY          
SEQRES  16 A  207  PHE GLU VAL GLN LEU THR ALA LEU LEU GLN ILE VAL              
HET    OTC  A 222      33                                                       
HET     MG  A 223       1                                                       
HET     CL  A 301       1                                                       
HET     CL  A 302       1                                                       
HET     CL  A 303       1                                                       
HET    MES  A 777      36                                                       
HETNAM     OTC OXYTETRACYCLINE                                                  
HETNAM      MG MAGNESIUM ION                                                    
HETNAM      CL CHLORIDE ION                                                     
HETNAM     MES 2-(N-MORPHOLINO)-ETHANESULFONIC ACID                             
FORMUL   2  OTC    C22 H24 N2 O9                                                
FORMUL   3   MG    MG 2+                                                        
FORMUL   4   CL    3(CL 1-)                                                     
FORMUL   7  MES    C6 H13 N O4 S                                                
FORMUL   8  HOH   *284(H2 O)                                                    
HELIX    1   1 ASN A    5  LEU A   25  1                                  21    
HELIX    2   2 THR A   26  GLY A   35  1                                  10    
HELIX    3   3 GLU A   37  VAL A   45  1                                   9    
HELIX    4   4 ASN A   47  HIS A   64  1                                  18    
HELIX    5   5 SER A   74  ARG A   92  1                                  19    
HELIX    6   6 ASP A   95  LEU A  101  1                                   7    
HELIX    7   7 ASP A  106  LYS A  108  5                                   3    
HELIX    8   8 GLN A  109  ASN A  123  1                                  15    
HELIX    9   9 SER A  126  ASP A  157  1                                  32    
HELIX   10  10 PRO A  167  SER A  179  1                                  13    
HELIX   11  11 GLY A  182  LEU A  204  1                                  23    
LINK         NE2 HIS A 100                MG    MG A 223     1555   1555  2.22  
LINK         O11 OTC A 222                MG    MG A 223     1555   1555  2.08  
LINK         O12 OTC A 222                MG    MG A 223     1555   1555  1.99  
LINK        MG    MG A 223                 O   HOH A2166     1555   1555  2.01  
LINK        MG    MG A 223                 O   HOH A2217     1555  10665  2.06  
LINK        MG    MG A 223                 O   HOH A2282     1555   1555  2.09  
SITE     1 AC1 19 HIS A  64  SER A  67  ASN A  82  PHE A  86                    
SITE     2 AC1 19 HIS A 100  ARG A 104  PRO A 105  VAL A 113                    
SITE     3 AC1 19 GLN A 116  ILE A 134  SER A 138  LEU A 170                    
SITE     4 AC1 19 MET A 177   MG A 223  HOH A2126  HOH A2166                    
SITE     5 AC1 19 HOH A2217  HOH A2281  HOH A2282                               
SITE     1 AC2  5 HIS A  63  ARG A  92  TYR A  93  HOH A2043                    
SITE     2 AC2  5 HOH A2155                                                     
SITE     1 AC3  4 SER A   2  ARG A   3  SER A  74  SER A  77                    
SITE     1 AC4  4 LEU A   4  GLN A  76  ARG A  80  HOH A2269                    
SITE     1 AC5  5 HIS A 100  OTC A 222  HOH A2166  HOH A2217                    
SITE     2 AC5  5 HOH A2282                                                     
SITE     1 AC6 10 LEU A  25  THR A  26  THR A  27  ASN A  47                    
SITE     2 AC6 10 LYS A  48  LEU A  51  HOH A2057  HOH A2093                    
SITE     3 AC6 10 HOH A2283  HOH A2284                                          
CRYST1   66.893   66.893  181.553  90.00  90.00  90.00 I 41 2 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      0.014949  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.014949  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005508        0.00000