HEADER    TRANSFERASE                             18-OCT-06   2J80              
TITLE     STRUCTURE OF CITRATE-BOUND PERIPLASMIC DOMAIN OF SENSOR HISTIDINE     
TITLE    2 KINASE CITA                                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: SENSOR KINASE CITA;                                        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: PERIPLASMIC LIGAND BINDING DOMAIN, RESIDUES 45-176;        
COMPND   5 SYNONYM: SENSOR HISTIDINE KINASE CITA PERIPLASMIC DOMAIN;            
COMPND   6 EC: 2.7.13.3;                                                        
COMPND   7 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: KLEBSIELLA PNEUMONIAE;                          
SOURCE   3 ORGANISM_TAXID: 573;                                                 
SOURCE   4 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   5 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   6 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   8 EXPRESSION_SYSTEM_PLASMID: PET16B                                    
KEYWDS    TRANSFERASE, SIGNAL TRANSDUCTION, TRANSMEMBRANE, PHOSPHORYLATION,     
KEYWDS   2 TWO-COMPONENT REGULATORY SYSTEM                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.SEVVANA,V.VIJAYAN,M.ZWECKSTETTER,S.REINELT,D.R.MADDEN,              
AUTHOR   2 G.M.SHELDRICK,M.BOTT,C.GRIESINGER,S.BECKER                           
REVDAT   6   09-OCT-24 2J80    1       REMARK LINK                              
REVDAT   5   08-MAY-19 2J80    1       REMARK                                   
REVDAT   4   06-MAR-19 2J80    1       REMARK LINK                              
REVDAT   3   13-APR-11 2J80    1       VERSN                                    
REVDAT   2   24-FEB-09 2J80    1       VERSN                                    
REVDAT   1   23-OCT-07 2J80    0                                                
JRNL        AUTH   M.SEVVANA,V.VIJAYAN,M.ZWECKSTETTER,S.REINELT,D.R.MADDEN,     
JRNL        AUTH 2 R.HERBST-IRMER,G.M.SHELDRICK,M.BOTT,C.GRIESINGER,S.BECKER    
JRNL        TITL   A LIGAND-INDUCED SWITCH IN THE PERIPLASMIC DOMAIN OF SENSOR  
JRNL        TITL 2 HISTIDINE KINASE CITA.                                       
JRNL        REF    J.MOL.BIOL.                   V. 377   512 2008              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   18258261                                                     
JRNL        DOI    10.1016/J.JMB.2008.01.024                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 96.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 41863                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : THIN SHELLS                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.194                           
REMARK   3   R VALUE            (WORKING SET) : 0.193                           
REMARK   3   FREE R VALUE                     : 0.217                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 2251                            
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) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.64                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 3058                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.4200                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 148                          
REMARK   3   BIN FREE R VALUE                    : 0.4730                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1869                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 45                                      
REMARK   3   SOLVENT ATOMS            : 214                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.69                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.02000                                             
REMARK   3    B22 (A**2) : 0.61000                                              
REMARK   3    B33 (A**2) : -0.58000                                             
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): 0.098         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.081         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.062         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.010         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.962                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.955                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1938 ; 0.025 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2619 ; 1.498 ; 1.994       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   253 ; 5.368 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    74 ;34.905 ;24.324       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   330 ;11.263 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    13 ;16.748 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   300 ; 0.121 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1435 ; 0.007 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   838 ; 0.245 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  1320 ; 0.288 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   128 ; 0.120 ; 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):    32 ; 0.158 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     8 ; 0.103 ; 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):  1253 ; 1.335 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  2005 ; 2.059 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   696 ; 4.344 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   614 ; 4.799 ; 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 : MASK                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
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 2J80 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 18-OCT-06.                  
REMARK 100 THE DEPOSITION ID IS D_1290030277.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 08-AUG-06                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : MPG/DESY, HAMBURG                  
REMARK 200  BEAMLINE                       : BW6                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : SYNCHROTRON                        
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 44151                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.5                               
REMARK 200  DATA REDUNDANCY                : 4.710                              
REMARK 200  R MERGE                    (I) : 0.05000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 15.0100                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.70                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.68                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.44000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: MAD                                            
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD                          
REMARK 200 SOFTWARE USED: SHELXCD, SHELXE                                       
REMARK 200 STARTING MODEL: NONE                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 56.10                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.80                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: HANGING DROP,VAPOUR DIFFUSION,           
REMARK 280  RESERVOIR:0.1M HEPES,PH 7.5,1.6M (NH4)2SO4, 5MM NA.CITRATE,         
REMARK 280  PROTEIN SOLUTION: 20 MG/ML,MIXING RATIO 1:1, TEMPERATURE 293K,      
REMARK 280  VAPOR DIFFUSION, HANGING 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       26.60500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       58.16500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       27.39500            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       58.16500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.60500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       27.39500            
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 3720 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 10960 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -41.6 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 465                                                                      
REMARK 465 MISSING RESIDUES                                                     
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                       
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                
REMARK 465                                                                      
REMARK 465   M RES C SSSEQI                                                     
REMARK 465     GLY A    -1                                                      
REMARK 465     HIS A     0                                                      
REMARK 465     MSE A     1                                                      
REMARK 465     ASP A     2                                                      
REMARK 465     ILE A     3                                                      
REMARK 465     GLU A   133                                                      
REMARK 465     GLY B    -1                                                      
REMARK 465     HIS B     0                                                      
REMARK 465     MSE B     1                                                      
REMARK 465     ASP B     2                                                      
REMARK 465     ILE B     3                                                      
REMARK 465     THR B     4                                                      
REMARK 465     GLU B     5                                                      
REMARK 465     GLU B   130                                                      
REMARK 465     GLN B   131                                                      
REMARK 465     LEU B   132                                                      
REMARK 465     GLU B   133                                                      
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     GLU A   5    CG   CD   OE1  OE2                                  
REMARK 470     ARG A   7    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A  35    CE   NZ                                             
REMARK 470     ARG A  40    CD   NE   CZ   NH1  NH2                             
REMARK 470     LYS A  77    CE   NZ                                             
REMARK 470     LYS A  99    CD   CE   NZ                                        
REMARK 470     LYS A 118    NZ                                                  
REMARK 470     GLU A 130    CG   CD   OE1  OE2                                  
REMARK 470     GLN A 131    CD   OE1  NE2                                       
REMARK 470     GLU B   6    CG   CD   OE1  OE2                                  
REMARK 470     ARG B   7    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     GLU B  28    CG   CD   OE1  OE2                                  
REMARK 470     LYS B  35    CE   NZ                                             
REMARK 470     LYS B  92    CE   NZ                                             
REMARK 470     LYS B  99    NZ                                                  
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500  SE    MSE A    26     O    HOH A  2009              1.76            
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    MSE B  26  SE     MSE B  26   CE     -0.423                       
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                              NA A1134  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER A  24   OG                                                     
REMARK 620 2 SER A 110   OG   82.2                                              
REMARK 620 3 PRO A 111   O    83.7 101.6                                        
REMARK 620 4 GOL A1136   O3   87.6  93.7 161.2                                  
REMARK 620 5 GOL A1136   O2  148.0  75.6 122.9  71.4                            
REMARK 620 6 HOH A2089   O   120.7 157.0  80.7  89.5  84.0                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              NA B1131  NA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 SER B  24   OG                                                     
REMARK 620 2 SER B 110   OG   80.5                                              
REMARK 620 3 PRO B 111   O    82.2 100.7                                        
REMARK 620 4 GOL B1132   O1   87.7  94.1 160.4                                  
REMARK 620 5 GOL B1132   O2  150.0  77.6 121.9  73.6                            
REMARK 620 6 HOH B2086   O   120.5 158.7  80.5  90.4  83.7                      
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 FLC A 1133                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA A 1134                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1135                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 1136                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FLC B 1130                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NA B 1131                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL B 1132                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1P0Z   RELATED DB: PDB                                   
REMARK 900 SENSOR KINASE CITA BINDING DOMAIN                                    
REMARK 900 RELATED ID: 2J81   RELATED DB: PDB                                   
REMARK 900 STRUCTURE OF CITRATE-FREE PERIPLASMIC DOMAIN OF SENSOR HISTIDINE     
REMARK 900 KINASE CITA                                                          
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 N-TERMINAL GHM DUE TO CONSTRUCT                                      
DBREF  2J80 A    2   133  UNP    P52687   CITA_KLEPN      45    176             
DBREF  2J80 B    2   133  UNP    P52687   CITA_KLEPN      45    176             
SEQADV 2J80 GLY A   -1  UNP  P52687              EXPRESSION TAG                 
SEQADV 2J80 HIS A    0  UNP  P52687              EXPRESSION TAG                 
SEQADV 2J80 MSE A    1  UNP  P52687              EXPRESSION TAG                 
SEQADV 2J80 GLY B   -1  UNP  P52687              EXPRESSION TAG                 
SEQADV 2J80 HIS B    0  UNP  P52687              EXPRESSION TAG                 
SEQADV 2J80 MSE B    1  UNP  P52687              EXPRESSION TAG                 
SEQRES   1 A  135  GLY HIS MSE ASP ILE THR GLU GLU ARG LEU HIS TYR GLN          
SEQRES   2 A  135  VAL GLY GLN ARG ALA LEU ILE GLN ALA MSE GLN ILE SER          
SEQRES   3 A  135  ALA MSE PRO GLU LEU VAL GLU ALA VAL GLN LYS ARG ASP          
SEQRES   4 A  135  LEU ALA ARG ILE LYS ALA LEU ILE ASP PRO MSE ARG SER          
SEQRES   5 A  135  PHE SER ASP ALA THR TYR ILE THR VAL GLY ASP ALA SER          
SEQRES   6 A  135  GLY GLN ARG LEU TYR HIS VAL ASN PRO ASP GLU ILE GLY          
SEQRES   7 A  135  LYS SER MSE GLU GLY GLY ASP SER ASP GLU ALA LEU ILE          
SEQRES   8 A  135  ASN ALA LYS SER TYR VAL SER VAL ARG LYS GLY SER LEU          
SEQRES   9 A  135  GLY SER SER LEU ARG GLY LYS SER PRO ILE GLN ASP ALA          
SEQRES  10 A  135  THR GLY LYS VAL ILE GLY ILE VAL SER VAL GLY TYR THR          
SEQRES  11 A  135  ILE GLU GLN LEU GLU                                          
SEQRES   1 B  135  GLY HIS MSE ASP ILE THR GLU GLU ARG LEU HIS TYR GLN          
SEQRES   2 B  135  VAL GLY GLN ARG ALA LEU ILE GLN ALA MSE GLN ILE SER          
SEQRES   3 B  135  ALA MSE PRO GLU LEU VAL GLU ALA VAL GLN LYS ARG ASP          
SEQRES   4 B  135  LEU ALA ARG ILE LYS ALA LEU ILE ASP PRO MSE ARG SER          
SEQRES   5 B  135  PHE SER ASP ALA THR TYR ILE THR VAL GLY ASP ALA SER          
SEQRES   6 B  135  GLY GLN ARG LEU TYR HIS VAL ASN PRO ASP GLU ILE GLY          
SEQRES   7 B  135  LYS SER MSE GLU GLY GLY ASP SER ASP GLU ALA LEU ILE          
SEQRES   8 B  135  ASN ALA LYS SER TYR VAL SER VAL ARG LYS GLY SER LEU          
SEQRES   9 B  135  GLY SER SER LEU ARG GLY LYS SER PRO ILE GLN ASP ALA          
SEQRES  10 B  135  THR GLY LYS VAL ILE GLY ILE VAL SER VAL GLY TYR THR          
SEQRES  11 B  135  ILE GLU GLN LEU GLU                                          
MODRES 2J80 MSE A   21  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE A   26  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE A   48  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE A   79  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE B   21  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE B   26  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE B   48  MET  SELENOMETHIONINE                                   
MODRES 2J80 MSE B   79  MET  SELENOMETHIONINE                                   
HET    MSE  A  21       8                                                       
HET    MSE  A  26       8                                                       
HET    MSE  A  48       8                                                       
HET    MSE  A  79       8                                                       
HET    MSE  B  21       8                                                       
HET    MSE  B  26       8                                                       
HET    MSE  B  48       8                                                       
HET    MSE  B  79       8                                                       
HET    FLC  A1133      13                                                       
HET     NA  A1134       1                                                       
HET    SO4  A1135       5                                                       
HET    GOL  A1136       6                                                       
HET    FLC  B1130      13                                                       
HET     NA  B1131       1                                                       
HET    GOL  B1132       6                                                       
HETNAM     MSE SELENOMETHIONINE                                                 
HETNAM     FLC CITRATE ANION                                                    
HETNAM      NA SODIUM ION                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   1  MSE    8(C5 H11 N O2 SE)                                            
FORMUL   3  FLC    2(C6 H5 O7 3-)                                               
FORMUL   4   NA    2(NA 1+)                                                     
FORMUL   5  SO4    O4 S 2-                                                      
FORMUL   6  GOL    2(C3 H8 O3)                                                  
FORMUL  10  HOH   *214(H2 O)                                                    
HELIX    1   1 GLU A    6  ALA A   25  1                                  20    
HELIX    2   2 MSE A   26  LYS A   35  1                                  10    
HELIX    3   3 ASP A   37  PHE A   51  1                                  15    
HELIX    4   4 ASN A   71  ILE A   75  5                                   5    
HELIX    5   5 SER A   84  ILE A   89  1                                   6    
HELIX    6   6 GLU A  130  LEU A  132  5                                   3    
HELIX    7   7 GLU B    6  ALA B   25  1                                  20    
HELIX    8   8 MSE B   26  LYS B   35  1                                  10    
HELIX    9   9 ASP B   37  PHE B   51  1                                  15    
HELIX   10  10 ASN B   71  ILE B   75  5                                   5    
HELIX   11  11 SER B   84  ILE B   89  1                                   6    
SHEET    1  AA 5 ARG A  66  TYR A  68  0                                        
SHEET    2  AA 5 TYR A  56  ASP A  61 -1  O  VAL A  59   N  LEU A  67           
SHEET    3  AA 5 VAL A 119  THR A 128 -1  O  ILE A 122   N  GLY A  60           
SHEET    4  AA 5 GLY A 103  GLN A 113 -1  O  LEU A 106   N  TYR A 127           
SHEET    5  AA 5 TYR A  94  GLY A 100 -1  O  TYR A  94   N  LYS A 109           
SHEET    1  BA 5 ARG B  66  TYR B  68  0                                        
SHEET    2  BA 5 TYR B  56  ASP B  61 -1  O  VAL B  59   N  LEU B  67           
SHEET    3  BA 5 VAL B 119  THR B 128 -1  O  ILE B 122   N  GLY B  60           
SHEET    4  BA 5 GLY B 103  GLN B 113 -1  O  LEU B 106   N  TYR B 127           
SHEET    5  BA 5 TYR B  94  GLY B 100 -1  O  TYR B  94   N  LYS B 109           
LINK         C   ALA A  20                 N   MSE A  21     1555   1555  1.33  
LINK         C   MSE A  21                 N   GLN A  22     1555   1555  1.33  
LINK         C   ALA A  25                 N   MSE A  26     1555   1555  1.33  
LINK         C   MSE A  26                 N   PRO A  27     1555   1555  1.36  
LINK         C   PRO A  47                 N   MSE A  48     1555   1555  1.33  
LINK         C   MSE A  48                 N   ARG A  49     1555   1555  1.36  
LINK         C   SER A  78                 N   MSE A  79     1555   1555  1.34  
LINK         C   MSE A  79                 N   GLU A  80     1555   1555  1.33  
LINK         C   ALA B  20                 N   MSE B  21     1555   1555  1.33  
LINK         C   MSE B  21                 N   GLN B  22     1555   1555  1.33  
LINK         C   ALA B  25                 N   MSE B  26     1555   1555  1.33  
LINK         C   MSE B  26                 N   PRO B  27     1555   1555  1.37  
LINK         C   PRO B  47                 N   MSE B  48     1555   1555  1.34  
LINK         C   MSE B  48                 N   ARG B  49     1555   1555  1.35  
LINK         C   SER B  78                 N   MSE B  79     1555   1555  1.34  
LINK         C   MSE B  79                 N   GLU B  80     1555   1555  1.34  
LINK         OG  SER A  24                NA    NA A1134     1555   1555  2.43  
LINK         OG  SER A 110                NA    NA A1134     1555   1555  2.45  
LINK         O   PRO A 111                NA    NA A1134     1555   1555  2.38  
LINK        NA    NA A1134                 O3  GOL A1136     1555   1555  2.40  
LINK        NA    NA A1134                 O2  GOL A1136     1555   1555  2.52  
LINK        NA    NA A1134                 O   HOH A2089     1555   1555  2.53  
LINK         OG  SER B  24                NA    NA B1131     1555   1555  2.51  
LINK         OG  SER B 110                NA    NA B1131     1555   1555  2.50  
LINK         O   PRO B 111                NA    NA B1131     1555   1555  2.42  
LINK        NA    NA B1131                 O1  GOL B1132     1555   1555  2.41  
LINK        NA    NA B1131                 O2  GOL B1132     1555   1555  2.51  
LINK        NA    NA B1131                 O   HOH B2086     1555   1555  2.52  
SITE     1 AC1 14 TYR A  56  THR A  58  ARG A  66  HIS A  69                    
SITE     2 AC1 14 MSE A  79  GLU A  80  GLY A 100  SER A 101                    
SITE     3 AC1 14 LEU A 102  ARG A 107  LYS A 109  SER A 124                    
SITE     4 AC1 14 HOH A2087  HOH A2108                                          
SITE     1 AC2  5 SER A  24  SER A 110  PRO A 111  GOL A1136                    
SITE     2 AC2  5 HOH A2089                                                     
SITE     1 AC3  4 GLY A 103  SER A 104  HOH A2086  SER B 104                    
SITE     1 AC4  9 MSE A  21  SER A  24  SER A  93  SER A 110                    
SITE     2 AC4  9  NA A1134  HOH A2091  HOH A2109  HOH A2110                    
SITE     3 AC4  9 PHE B  51                                                     
SITE     1 AC5 14 TYR B  56  THR B  58  ARG B  66  HIS B  69                    
SITE     2 AC5 14 MSE B  79  GLU B  80  GLY B 100  SER B 101                    
SITE     3 AC5 14 LEU B 102  ARG B 107  LYS B 109  SER B 124                    
SITE     4 AC5 14 HOH B2084  HOH B2102                                          
SITE     1 AC6  5 SER B  24  SER B 110  PRO B 111  GOL B1132                    
SITE     2 AC6  5 HOH B2086                                                     
SITE     1 AC7  9 PHE A  51  MSE B  21  SER B  24  SER B  93                    
SITE     2 AC7  9 SER B 110   NA B1131  HOH B2078  HOH B2103                    
SITE     3 AC7  9 HOH B2104                                                     
CRYST1   53.210   54.790  116.330  90.00  90.00  90.00 P 21 21 21    8          
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      0.018793  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.018252  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008596        0.00000