HEADER    TRANSCRIPTION REGULATOR                 08-MAR-02   1L5Z              
TITLE     CRYSTAL STRUCTURE OF THE E121K SUBSTITUTION OF THE RECEIVER DOMAIN OF 
TITLE    2 SINORHIZOBIUM MELILOTI DCTD                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: C4-DICARBOXYLATE TRANSPORT TRANSCRIPTIONAL REGULATORY      
COMPND   3 PROTEIN DCTD;                                                        
COMPND   4 CHAIN: A;                                                            
COMPND   5 FRAGMENT: RECEIVER DOMAIN, RESIDUES 2-143;                           
COMPND   6 SYNONYM: DCTDNL;                                                     
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SINORHIZOBIUM MELILOTI;                         
SOURCE   3 ORGANISM_TAXID: 382;                                                 
SOURCE   4 GENE: DCTD;                                                          
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: PT143E121K                                
KEYWDS    TWO COMPONENT RECEIVER DOMAIN, SIGMA 54, REGULATOR OF AAA+ ATPASE,    
KEYWDS   2 TRANSCRIPTION REGULATOR                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    S.PARK,M.MEYER,A.D.JONES,H.P.YENNAWAR,N.H.YENNAWAR,B.T.NIXON          
REVDAT   6   16-AUG-23 1L5Z    1       REMARK                                   
REVDAT   5   27-OCT-21 1L5Z    1       REMARK SEQADV LINK                       
REVDAT   4   13-JUL-11 1L5Z    1       VERSN                                    
REVDAT   3   24-FEB-09 1L5Z    1       VERSN                                    
REVDAT   2   11-DEC-02 1L5Z    1       JRNL                                     
REVDAT   1   23-OCT-02 1L5Z    0                                                
JRNL        AUTH   S.PARK,M.MEYER,A.D.JONES,H.P.YENNAWAR,N.H.YENNAWAR,B.T.NIXON 
JRNL        TITL   TWO-COMPONENT SIGNALING IN THE AAA + ATPASE DCTD: BINDING    
JRNL        TITL 2 MG2+ AND BEF3- SELECTS BETWEEN ALTERNATE DIMERIC STATES OF   
JRNL        TITL 3 THE RECEIVER DOMAIN                                          
JRNL        REF    FASEB J.                      V.  16  1964 2002              
JRNL        REFN                   ISSN 0892-6638                               
JRNL        PMID   12368235                                                     
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   M.G.MEYER,S.PARK,L.ZERINGUE,M.STALEY,M.MCKINSTRY,            
REMARK   1  AUTH 2 R.I.KAUFMAN,H.ZHANG,D.YAN,N.YENNAWAR,H.YENNAWAR,G.K.FARBER,  
REMARK   1  AUTH 3 B.T.NIXON                                                    
REMARK   1  TITL   A DIMERIC TWO-COMPONENT RECEIVER DOMAIN INHIBITS THE         
REMARK   1  TITL 2 SIGMA54-DEPENDENT ATPASE IN DCTD                             
REMARK   1  REF    FASEB J.                      V.  15  1326 2001              
REMARK   1  REFN                   ISSN 0892-6638                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.0                                              
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 : ENGH & HUBER                                    
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 36.70                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 215180.430                     
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 98.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 19264                          
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) : 0.196                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 9.800                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1897                            
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) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.13                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 98.40                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 2818                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2460                       
REMARK   3   BIN FREE R VALUE                    : 0.2590                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.10                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 318                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.015                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1090                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 29                                      
REMARK   3   SOLVENT ATOMS            : 144                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.60                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.40                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.67000                                             
REMARK   3    B22 (A**2) : -1.10000                                             
REMARK   3    B33 (A**2) : 1.77000                                              
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) : 0.21                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.19                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.25                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.19                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.015                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.700                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 21.90                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.990                           
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) : 2.410 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 2.960 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 4.000 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 4.920 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.39                                                 
REMARK   3   BSOL        : 66.21                                                
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_REP1.PARAM                             
REMARK   3  PARAMETER FILE  2  : WATER.PARAM                                    
REMARK   3  PARAMETER FILE  3  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  4  : CRY.PARAM                                      
REMARK   3  PARAMETER FILE  5  : NULL                                           
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : NULL                                           
REMARK   3  TOPOLOGY FILE  2   : NULL                                           
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3  TOPOLOGY FILE  5   : NULL                                           
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1L5Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 19-MAR-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000015677.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 30-SEP-01                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : RIGAKU RU200                       
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : MSC BLUE CONFOCAL OPTICAL SYSTEM   
REMARK 200  OPTICS                         : MSC BLUE CONFOCAL OPTICAL SYSTEM   
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU RAXIS IV++                  
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : D*TREK, CRYSTALCLEAR               
REMARK 200                                   (MSC/RIGAKU)                       
REMARK 200  DATA SCALING SOFTWARE          : D*TREK                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 19264                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 36.700                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.200                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.6                               
REMARK 200  DATA REDUNDANCY                : 3.040                              
REMARK 200  R MERGE                    (I) : 0.06100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.1000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.07                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.5                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.61                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.22200                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: AMORE                                                 
REMARK 200 STARTING MODEL: PDB ENTRY 1QKK                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 70.47                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: HEPES, LITHIUM SULFATE, PEG 8000, PH     
REMARK 280  7.5, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 298K                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z                                                 
REMARK 290       3555   -X,Y,-Z                                                 
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z+1/2                                       
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+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        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       28.56450            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       29.06950            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       84.41200            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       28.56450            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       29.06950            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       84.41200            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       28.56450            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       29.06950            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       84.41200            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       28.56450            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       29.06950            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000       84.41200            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 300 REMARK: ANALYTICAL ULTRACENTRIFUGE DATA INDICATES SOLUTION FORM IS   
REMARK 300 A DIMER; GENETIC AND BIOCHEMICAL DATA INDICATES SUBSTITUTION         
REMARK 300 DESTABILIZES THE DIMER ~20-FOLD, LEADING TO 'DEREPRESSION' OF THE    
REMARK 300 ATPASE DOMAIN ASYMMETRIC UNIT IS A MONOMER BIOLOGICAL UNIT IS A      
REMARK 300 DIMER - BUILD WITH SYMMETRY OPERATION -X, -Y, Z                      
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
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        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       58.13900            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 10020 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 25400 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -35.0 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        0.00000            
REMARK 350   BIOMT2   2  0.000000 -1.000000  0.000000       58.13900            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 350   BIOMT1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   4  0.000000 -1.000000  0.000000       58.13900            
REMARK 350   BIOMT3   4  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 S    SO4 A 201  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 574  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH A 578  LIES ON A SPECIAL POSITION.                          
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   148                                                      
REMARK 465     LEU A   149                                                      
REMARK 465     GLU A   150                                                      
REMARK 465     HIS A   151                                                      
REMARK 465     HIS A   152                                                      
REMARK 465     HIS A   153                                                      
REMARK 465     HIS A   154                                                      
REMARK 465     HIS A   155                                                      
REMARK 465     HIS A   156                                                      
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 144    CG   CD   CE   NZ                                   
REMARK 470     LEU A 145    CG   CD1  CD2                                       
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   ND2  ASN A   129     ND2  ASN A   129     2565     1.59            
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    ASP A  74      106.55   -172.85                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 503                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE GOL A 504                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1QKK   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF THE RECEIVER DOMAIN AND LINKER REGION OF DCTD   
REMARK 900 FROM SINORHIZOBIUM MELILOTI                                          
REMARK 900 RELATED ID: 1L5Y   RELATED DB: PDB                                   
REMARK 900 CRYSTAL STRUCTURE OF MG2+ / BEF3- BOUND RECEIVER DOMAIN OF           
REMARK 900 SINORHIZOBIUM MELILOTI DCTD                                          
DBREF  1L5Z A    2   143  UNP    P13632   DCTD_RHIME       2    143             
SEQADV 1L5Z LYS A  121  UNP  P13632    GLU   121 ENGINEERED MUTATION            
SEQADV 1L5Z LYS A  144  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z LEU A  145  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z ALA A  146  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z ALA A  147  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z ALA A  148  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z LEU A  149  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z GLU A  150  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  151  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  152  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  153  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  154  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  155  UNP  P13632              EXPRESSION TAG                 
SEQADV 1L5Z HIS A  156  UNP  P13632              EXPRESSION TAG                 
SEQRES   1 A  155  SER ALA ALA PRO SER VAL PHE LEU ILE ASP ASP ASP ARG          
SEQRES   2 A  155  ASP LEU ARG LYS ALA MET GLN GLN THR LEU GLU LEU ALA          
SEQRES   3 A  155  GLY PHE THR VAL SER SER PHE ALA SER ALA THR GLU ALA          
SEQRES   4 A  155  LEU ALA GLY LEU SER ALA ASP PHE ALA GLY ILE VAL ILE          
SEQRES   5 A  155  SER ASP ILE ARG MET PRO GLY MET ASP GLY LEU ALA LEU          
SEQRES   6 A  155  PHE ARG LYS ILE LEU ALA LEU ASP PRO ASP LEU PRO MET          
SEQRES   7 A  155  ILE LEU VAL THR GLY HIS GLY ASP ILE PRO MET ALA VAL          
SEQRES   8 A  155  GLN ALA ILE GLN ASP GLY ALA TYR ASP PHE ILE ALA LYS          
SEQRES   9 A  155  PRO PHE ALA ALA ASP ARG LEU VAL GLN SER ALA ARG ARG          
SEQRES  10 A  155  ALA GLU LYS LYS ARG ARG LEU VAL MET GLU ASN ARG SER          
SEQRES  11 A  155  LEU ARG ARG ALA ALA GLU ALA ALA SER GLU GLY LEU LYS          
SEQRES  12 A  155  LEU ALA ALA ALA LEU GLU HIS HIS HIS HIS HIS HIS              
HET    SO4  A 201       5                                                       
HET    GOL  A 501       6                                                       
HET    GOL  A 502       6                                                       
HET    GOL  A 503       6                                                       
HET    GOL  A 504       6                                                       
HETNAM     SO4 SULFATE ION                                                      
HETNAM     GOL GLYCEROL                                                         
HETSYN     GOL GLYCERIN; PROPANE-1,2,3-TRIOL                                    
FORMUL   2  SO4    O4 S 2-                                                      
FORMUL   3  GOL    4(C3 H8 O3)                                                  
FORMUL   7  HOH   *144(H2 O)                                                    
HELIX    1   1 ASP A   13  LEU A   26  1                                  14    
HELIX    2   2 SER A   36  GLY A   43  1                                   8    
HELIX    3   3 ASP A   62  ASP A   74  1                                  13    
HELIX    4   4 GLY A   84  GLY A   86  5                                   3    
HELIX    5   5 ASP A   87  ASP A   97  1                                  11    
HELIX    6   6 ALA A  108  ALA A  147  1                                  40    
SHEET    1   A 5 THR A  30  PHE A  34  0                                        
SHEET    2   A 5 SER A   6  ILE A  10  1  N  VAL A   7   O  SER A  32           
SHEET    3   A 5 ILE A  51  ASP A  55  1  O  ILE A  53   N  ILE A  10           
SHEET    4   A 5 MET A  79  THR A  83  1  O  ILE A  80   N  VAL A  52           
SHEET    5   A 5 ASP A 101  ALA A 104  1  O  ILE A 103   N  THR A  83           
LINK         S   SO4 A 201                 O1  SO4 A 201     1555   1555  1.46  
LINK         S   SO4 A 201                 O2  SO4 A 201     1555   1555  1.46  
LINK         S   SO4 A 201                 O3  SO4 A 201     1555   1555  1.47  
LINK         S   SO4 A 201                 O4  SO4 A 201     1555   1555  1.48  
CISPEP   1 LYS A  105    PRO A  106          0        -0.59                     
SITE     1 AC1  3 ARG A  14  ARG A  17  HOH A 574                               
SITE     1 AC2  5 ARG A  57  GLY A  84  HIS A  85  GLY A  86                    
SITE     2 AC2  5 ASP A  87                                                     
SITE     1 AC3  5 GLN A  22  ARG A  68  GLN A  93  ALA A  94                    
SITE     2 AC3  5 ASP A  97                                                     
SITE     1 AC4  7 ILE A  95  ASP A 101  ARG A 111  GLN A 114                    
SITE     2 AC4  7 SER A 115  ARG A 118  HOH A 559                               
SITE     1 AC5  5 HIS A  85  ILE A  88  PRO A  89  ARG A 111                    
SITE     2 AC5  5 HOH A 532                                                     
CRYST1   57.129   58.139  168.824  90.00  90.00  90.00 I 2 2 2       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      0.017504  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.017200  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.005923        0.00000