HEADER    SIGNALING PROTEIN, CELL CYCLE           02-AUG-02   1MB3               
TITLE     CRYSTAL STRUCTURE OF THE RESPONSE REGULATOR DIVK AT PH 8.5 IN COMPLEX  
TITLE    2 WITH MG2+                                                             
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: CELL DIVISION RESPONSE REGULATOR DIVK;                      
COMPND   3 CHAIN: A;                                                             
COMPND   4 SYNONYM: POLAR DIFFERENTIATION RESPONSE REGULATOR, DIVK RESPONSE      
COMPND   5 REGULATOR;                                                            
COMPND   6 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: CAULOBACTER VIBRIOIDES;                          
SOURCE   3 ORGANISM_TAXID: 155892;                                               
SOURCE   4 GENE: DIVK;                                                           
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21-DE3-PLYSS;                             
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                               
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PZHF55                                     
KEYWDS    RESPONSE REGULATOR, SIGNAL TRANSDUCTION PROTEIN, STRUCTURAL            
KEYWDS   2 PROTEOMICS IN EUROPE, SPINE, STRUCTURAL GENOMICS, SIGNALING PROTEIN,  
KEYWDS   3 CELL CYCLE                                                            
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    V.GUILLET,N.OHTA,S.CABANTOUS,A.NEWTON,J.-P.SAMAMA,STRUCTURAL           
AUTHOR   2 PROTEOMICS IN EUROPE (SPINE)                                          
REVDAT   5   03-APR-24 1MB3    1       REMARK                                    
REVDAT   4   14-FEB-24 1MB3    1       REMARK LINK                               
REVDAT   3   01-FEB-17 1MB3    1       AUTHOR JRNL   VERSN                       
REVDAT   2   24-FEB-09 1MB3    1       VERSN                                     
REVDAT   1   04-DEC-02 1MB3    0                                                 
JRNL        AUTH   V.GUILLET,N.OHTA,S.CABANTOUS,A.NEWTON,J.-P.SAMAMA             
JRNL        TITL   CRYSTALLOGRAPHIC AND BIOCHEMICAL STUDIES OF DIVK REVEAL       
JRNL        TITL 2 NOVEL FEATURES OF AN ESSENTIAL RESPONSE REGULATOR IN          
JRNL        TITL 3 CAULOBACTER CRESCENTUS.                                       
JRNL        REF    J.BIOL.CHEM.                  V. 277 42003 2002               
JRNL        REFN                   ISSN 0021-9258                                
JRNL        PMID   12176983                                                      
JRNL        DOI    10.1074/JBC.M204789200                                        
REMARK   1                                                                       
REMARK   1 REFERENCE 1                                                           
REMARK   1  AUTH   S.CABANTOUS,V.GUILLET,N.OHTA,A.NEWTON,J.-P.SAMAMA             
REMARK   1  TITL   CHARACTERIZATION AND CRYSTALLIZATION OF DIVK, AN ESSENTIAL    
REMARK   1  TITL 2 RESPONSE REGULATOR FOR CELL DIVISION AND DIFFERENTIATION IN   
REMARK   1  TITL 3 CAULOBACTER CRESCENTUS                                        
REMARK   1  REF    ACTA CRYSTALLOGR.,SECT.D      V.  58  1249 2002               
REMARK   1  REFN                   ISSN 0907-4449                                
REMARK   1  DOI    10.1107/S0907444902008338                                     
REMARK   1 REFERENCE 2                                                           
REMARK   1  AUTH   G.B.HECHT,T.LANE,N.OHTA,J.M.SOMMER,A.NEWTON                   
REMARK   1  TITL   AN ESSENTIAL SINGLE DOMAIN RESPONSE REGULATOR REQUIRED FOR    
REMARK   1  TITL 2 NORMAL CELL DIVISION AND DIFFERENTIATION IN CAULOBACTER       
REMARK   1  TITL 3 CRESCENTUS                                                    
REMARK   1  REF    EMBO J.                       V.  14  3915 1995               
REMARK   1  REFN                   ISSN 0261-4189                                
REMARK   2                                                                       
REMARK   2 RESOLUTION.    1.41 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : CNS                                                   
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-               
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,               
REMARK   3               : READ,RICE,SIMONSON,WARREN                             
REMARK   3                                                                       
REMARK   3  REFINEMENT TARGET : NULL                                             
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.41                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 25.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : NULL                            
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                            
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 85.0                            
REMARK   3   NUMBER OF REFLECTIONS             : 18328                           
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 SET) : 0.207                            
REMARK   3   FREE R VALUE                     : 0.215                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.900                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 1698                             
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.005                            
REMARK   3                                                                       
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                   
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                             
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.41                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.50                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 66.80                         
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 1983                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2220                        
REMARK   3   BIN FREE R VALUE                    : 0.2790                        
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.30                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 227                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.019                         
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 867                                      
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 1                                        
REMARK   3   SOLVENT ATOMS            : 63                                       
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : 15.10                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 15.70                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : 1.06000                                               
REMARK   3    B22 (A**2) : -1.00000                                              
REMARK   3    B33 (A**2) : -0.06000                                              
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 COORDINATE ERROR.                                          
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                             
REMARK   3   ESD FROM SIGMAA              (A) : NULL                             
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                             
REMARK   3                                                                       
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                          
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.18                             
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.10                             
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                    
REMARK   3   BOND LENGTHS                 (A) : 0.004                            
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                            
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.50                            
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.780                            
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL MODEL : RESTRAINED                                 
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                 
REMARK   3   MAIN-CHAIN BOND              (A**2) : 0.810 ; 1.500                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.310 ; 2.000                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.240 ; 2.000                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 1.850 ; 2.500                 
REMARK   3                                                                       
REMARK   3  BULK SOLVENT MODELING.                                               
REMARK   3   METHOD USED : FLAT MODEL                                            
REMARK   3   KSOL        : 0.34                                                  
REMARK   3   BSOL        : 61.78                                                 
REMARK   3                                                                       
REMARK   3  NCS MODEL : NULL                                                     
REMARK   3                                                                       
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT           
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                  
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                  
REMARK   3                                                                       
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                               
REMARK   3  PARAMETER FILE  2  : WATER.PARAM                                     
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                       
REMARK   3  PARAMETER FILE  4  : NULL                                            
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                     
REMARK   3  TOPOLOGY FILE  2   : ION.TOP                                         
REMARK   3  TOPOLOGY FILE  3   : NULL                                            
REMARK   3  TOPOLOGY FILE  4   : NULL                                            
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                       
REMARK   4                                                                       
REMARK   4 1MB3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-AUG-02.                   
REMARK 100 THE DEPOSITION ID IS D_1000016797.                                    
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 27-JUN-00                           
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                               
REMARK 200  PH                             : 8.50                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : Y                                   
REMARK 200  RADIATION SOURCE               : ESRF                                
REMARK 200  BEAMLINE                       : BM30A                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.933                               
REMARK 200  MONOCHROMATOR                  : SI111 OR SI311                      
REMARK 200  OPTICS                         : NULL                                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                         
REMARK 200  DETECTOR MANUFACTURER          : MAR SCANNER 345 MM PLATE            
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                              
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                 
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 18328                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.410                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 26.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 91.1                                
REMARK 200  DATA REDUNDANCY                : 4.800                               
REMARK 200  R MERGE                    (I) : 0.05100                             
REMARK 200  R SYM                      (I) : NULL                                
REMARK 200   FOR THE DATA SET  : 5.2000                              
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.41                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.45                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 78.9                                
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.90                                
REMARK 200  R MERGE FOR SHELL          (I) : 0.20000                             
REMARK 200  R SYM FOR SHELL            (I) : NULL                                
REMARK 200   FOR SHELL         : 3.600                               
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS             
REMARK 200 SOFTWARE USED: CNS                                                    
REMARK 200 STARTING MODEL: APO-DIVK SOLVED AT PH6                                
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 31.00                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.80                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: MES 50MM PH6.00, PEG MME 550 32% AT       
REMARK 280  285K, THE PROTEIN WAS CONCENTRATED AT 2 MG/ML IN MES-NAOH PH         
REMARK 280  6.00 (20 MM), DTT (5 MM) AND MIXED WITH AN EQUAL VOLUME OF THE       
REMARK 280  RESERVOIR SOLUTION CONTAINING PEG MME 550 (32%), MES PH 6.00 (40     
REMARK 280  MM), DTT (5 MM). CRYSTAL SIZE (300X40X40 MICROM3) IN 20MICROL        
REMARK 280  SITTING DROPS. CRYSTALS TRANSFERRED IN RESERVOIR SOLUTIONS WHOSE     
REMARK 280  PH WAS INCREASED FROM 6.0 TO 8.5 BY STEPS OF 0.5 PH UNITS (THE       
REMARK 280  SOAKING TIME IN EACH SOLUTION WAS 12 HOURS). MAGNESIUM               
REMARK 280  DERIVATIVE WAS OBTAINED BY SOAKING FOR 24 HOURS PROTEIN CRYSTALS     
REMARK 280  IN THE RESERVOIR SOLUTION SUPPLEMENTED WITH 20 MM MGCL2 (PH 8.50)    
REMARK 280  .CRYSTALS WERE FROZEN IN LIQUID PROPANE AFTER SOAKING FOR A FEW      
REMARK 280  SECONDS IN PEG MME 550 (50%), TRIS PH 8.5 (40 MM)., VAPOR            
REMARK 280  DIFFUSION, HANGING OR SITTING-DROP                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                        
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                          
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                          
REMARK 290       4555   X+1/2,-Y+1/2,-Z                                          
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000       18.38500             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       33.56000             
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.53500             
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       33.56000             
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       18.38500             
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       20.53500             
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000             
REMARK 290                                                                       
REMARK 290 REMARK: NULL                                                          
REMARK 300                                                                       
REMARK 300 BIOMOLECULE: 1                                                        
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                 
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                   
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON                
REMARK 300 BURIED SURFACE AREA.                                                  
REMARK 350                                                                       
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN            
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                 
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS           
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                           
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                                
REMARK 350                                                                       
REMARK 350 BIOMOLECULE: 1                                                        
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                          
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 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     ALA A    84                                                       
REMARK 465     PHE A    85                                                       
REMARK 465     ALA A    86                                                       
REMARK 465     MET A    87                                                       
REMARK 465     LYS A    88                                                       
REMARK 465     GLY A    89                                                       
REMARK 465     ALA A   125                                                       
REMARK 470                                                                       
REMARK 470 MISSING ATOM                                                          
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;            
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;           
REMARK 470 I=INSERTION CODE):                                                    
REMARK 470   M RES CSSEQI  ATOMS                                                 
REMARK 470     LYS A   4    CG   CD   CE   NZ                                    
REMARK 470     LYS A  46    CG   CD   CE   NZ                                    
REMARK 470     LYS A  66    CG   CD   CE   NZ                                    
REMARK 470     ASP A  73    CG   OD1  OD2                                        
REMARK 470     THR A  83    OG1  CG2                                             
REMARK 470     ASP A  90    CG   OD1  OD2                                        
REMARK 470     GLU A  91    CG   CD   OE1  OE2                                   
REMARK 470     GLU A  92    CG   CD   OE1  OE2                                   
REMARK 470     ARG A  93    CG   CD   NE   CZ   NH1  NH2                         
REMARK 470     ARG A  95    CG   CD   NE   CZ   NH1  NH2                         
REMARK 470     GLU A  96    CG   CD   OE1  OE2                                   
REMARK 470     TYR A 102    CG   CD1  CD2  CE1  CE2  CZ   OH                     
REMARK 470     LYS A 105    CG   CD   CE   NZ                                    
REMARK 470     ARG A 118    CG   CD   NE   CZ   NH1  NH2                         
REMARK 470     ARG A 122    CG   CD   NE   CZ   NH1  NH2                         
REMARK 470     GLN A 123    CG   CD   OE1  NE2                                   
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    GLN A  55       49.22    -86.39                                    
REMARK 500    GLN A  55       49.30   -108.33                                    
REMARK 500                                                                       
REMARK 500 REMARK: NULL                                                          
REMARK 620                                                                       
REMARK 620 METAL COORDINATION                                                    
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;                
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                              
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              MG A 201  MG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 GLU A   9   OE2                                                     
REMARK 620 2 ASP A  10   OD2  84.7                                               
REMARK 620 3 ASP A  53   OD2  95.6  68.4                                         
REMARK 620 4 HOH A 202   O    91.3  65.3 132.3                                   
REMARK 620 N                    1     2     3                                    
REMARK 620                                                                       
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                          
REMARK 620                              MG A 201  MG                             
REMARK 620 N RES CSSEQI ATOM                                                     
REMARK 620 1 ASP A  53   OD2                                                     
REMARK 620 2 GLN A  55   O    72.7                                               
REMARK 620 3 HOH A 202   O   135.5 147.3                                         
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 MG A 201                   
REMARK 900                                                                       
REMARK 900 RELATED ENTRIES                                                       
REMARK 900 RELATED ID: 1M5T   RELATED DB: PDB                                    
REMARK 900 CRYSTAL STRUCTURE OF THE RESPONSE REGULATOR DIVK                      
REMARK 900 RELATED ID: 1MAV   RELATED DB: PDB                                    
REMARK 900 CRYSTAL STRUCTURE OF THE RESPONSE REGULATOR DIVK AT PH 6.0 IN         
REMARK 900 COMPLEX WITH MN2+                                                     
REMARK 900 RELATED ID: 1MB0   RELATED DB: PDB                                    
REMARK 900 CRYSTAL STRUCTURE OF THE RESPONSE REGULATOR DIVK AT PH 8.0 IN         
REMARK 900 COMPLEX WITH MN2+                                                     
REMARK 900 RELATED ID: IGBMC-1121-000   RELATED DB: TARGETDB                     
DBREF  1MB3 A    2   125  UNP    Q9A5I4   Q9A5I4_CAUCR     2    125              
SEQRES   1 A  124  THR LYS LYS VAL LEU ILE VAL GLU ASP ASN GLU LEU ASN           
SEQRES   2 A  124  MET LYS LEU PHE HIS ASP LEU LEU GLU ALA GLN GLY TYR           
SEQRES   3 A  124  GLU THR LEU GLN THR ARG GLU GLY LEU SER ALA LEU SER           
SEQRES   4 A  124  ILE ALA ARG GLU ASN LYS PRO ASP LEU ILE LEU MET ASP           
SEQRES   5 A  124  ILE GLN LEU PRO GLU ILE SER GLY LEU GLU VAL THR LYS           
SEQRES   6 A  124  TRP LEU LYS GLU ASP ASP ASP LEU ALA HIS ILE PRO VAL           
SEQRES   7 A  124  VAL ALA VAL THR ALA PHE ALA MET LYS GLY ASP GLU GLU           
SEQRES   8 A  124  ARG ILE ARG GLU GLY GLY CYS GLU ALA TYR ILE SER LYS           
SEQRES   9 A  124  PRO ILE SER VAL VAL HIS PHE LEU GLU THR ILE LYS ARG           
SEQRES  10 A  124  LEU LEU GLU ARG GLN PRO ALA                                   
HET     MG  A 201       2                                                        
HETNAM      MG MAGNESIUM ION                                                     
FORMUL   2   MG    MG 2+                                                         
FORMUL   3  HOH   *63(H2 O)                                                      
HELIX    1   1 ASN A   11  GLN A   25  1                                  15     
HELIX    2   2 GLU A   34  LYS A   46  1                                  13     
HELIX    3   3 SER A   60  ASP A   71  1                                  12     
HELIX    4   4 ASP A   90  GLY A   98  1                                   9     
HELIX    5   5 SER A  108  GLU A  121  1                                  14     
SHEET    1   A 5 GLU A  28  THR A  32  0                                         
SHEET    2   A 5 LYS A   4  VAL A   8  1  N  ILE A   7   O  LEU A  30            
SHEET    3   A 5 LEU A  49  ASP A  53  1  O  LEU A  51   N  VAL A   8            
SHEET    4   A 5 VAL A  79  THR A  83  1  O  VAL A  80   N  ILE A  50            
SHEET    5   A 5 ALA A 101  SER A 104  1  O  ILE A 103   N  THR A  83            
LINK         OE2 GLU A   9                MG  A MG A 201     1555   1555  2.38   
LINK         OD2AASP A  10                MG  A MG A 201     1555   1555  2.72   
LINK         OD2AASP A  53                MG  A MG A 201     1555   1555  2.37   
LINK         OD2BASP A  53                MG  B MG A 201     1555   1555  2.67   
LINK         O   GLN A  55                MG  B MG A 201     1555   1555  2.92   
LINK        MG  A MG A 201                 O   HOH A 202     1555   1555  2.46   
LINK        MG  B MG A 201                 O   HOH A 202     1555   1555  2.72   
CISPEP   1 LYS A  105    PRO A  106          0        -0.15                      
SITE     1 AC1  5 GLU A   9  ASP A  10  ASP A  53  GLN A  55                     
SITE     2 AC1  5 HOH A 202                                                      
CRYST1   36.770   41.070   67.120  90.00  90.00  90.00 P 21 21 21    4           
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      0.027196  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.024349  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.014899        0.00000                          
END