HEADER    TRANSCRIPTION                           22-APR-05   1ZH4              
TITLE     CRYSTAL STRUCTURE OF THE MG+2/BEF3-BOUND RECEIVER DOMAIN OF KDP       
TITLE    2 POTASSIUM TRANSPORT SYSTEM RESPONSE REGULATOR KDPE                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: KDP OPERON TRANSCRIPTIONAL REGULATORY PROTEIN KDPE;        
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: N-TERMINAL RECEIVER DOMAIN (RESIDUES 1-121);               
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 562;                                                 
SOURCE   4 GENE: KDPE;                                                          
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PEF27 (PJES307 DERIVATIVE)                
KEYWDS    TWO-COMPONENT SYSTEM, GENE REGULATION, TRANSCRIPTION FACTOR, KDP      
KEYWDS   2 POTASSIUM TRANSPORT SYSTEM, DOUBLY WOUND FIVE-STRANDED BETA-ALPHA    
KEYWDS   3 FOLD, TRANSCRIPTION                                                  
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    A.TORO-ROMAN,T.WU,A.M.STOCK                                           
REVDAT   4   23-AUG-23 1ZH4    1       REMARK                                   
REVDAT   3   20-OCT-21 1ZH4    1       REMARK SEQADV LINK                       
REVDAT   2   24-FEB-09 1ZH4    1       VERSN                                    
REVDAT   1   13-DEC-05 1ZH4    0                                                
JRNL        AUTH   A.TORO-ROMAN,T.WU,A.M.STOCK                                  
JRNL        TITL   A COMMON DIMERIZATION INTERFACE IN BACTERIAL RESPONSE        
JRNL        TITL 2 REGULATORS KDPE AND TORR.                                    
JRNL        REF    PROTEIN SCI.                  V.  14  3077 2005              
JRNL        REFN                   ISSN 0961-8368                               
JRNL        PMID   16322582                                                     
JRNL        DOI    10.1110/PS.051722805                                         
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.20 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.24                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 95.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 13343                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.229                           
REMARK   3   R VALUE            (WORKING SET) : 0.227                           
REMARK   3   FREE R VALUE                     : 0.265                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 706                             
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 2.20                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.26                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 860                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3080                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 46                           
REMARK   3   BIN FREE R VALUE                    : 0.3590                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1866                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 10                                      
REMARK   3   SOLVENT ATOMS            : 107                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 26.40                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 45.01                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -2.73000                                             
REMARK   3    B22 (A**2) : -1.35000                                             
REMARK   3    B33 (A**2) : 4.08000                                              
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): 0.311         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.232         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.195         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 8.033         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.933                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.914                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1894 ; 0.017 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  2557 ; 1.653 ; 1.981       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   239 ; 5.820 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   297 ; 0.110 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  1429 ; 0.006 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   899 ; 0.257 ; 0.300       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   211 ; 0.223 ; 0.500       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     2 ; 0.046 ; 0.500       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    40 ; 0.266 ; 0.300       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):     5 ; 0.231 ; 0.500       
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):  1194 ; 1.501 ; 2.000       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1902 ; 2.530 ; 3.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   700 ; 1.602 ; 2.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   655 ; 2.515 ; 3.000       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1ZH4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 03-MAY-05.                  
REMARK 100 THE DEPOSITION ID IS D_1000032715.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 12-NOV-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4A                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.07179                            
REMARK 200  MONOCHROMATOR                  : KOHZU DOUBLE CRYSTAL               
REMARK 200                                   MONOCHROMATOR WITH A SAGITTALLY    
REMARK 200                                   FOCUSED SECOND CRYSTAL. CRYSTAL    
REMARK 200                                   TYPE IS SI(111)                    
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 14572                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.200                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 96.8                               
REMARK 200  DATA REDUNDANCY                : 5.400                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.04800                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 30.1000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 88.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 4.90                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.21300                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 7.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER V. 1.2                                         
REMARK 200 STARTING MODEL: PDB ENTRY 1ZH3 (ALA MODEL)                           
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 52.50                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.60                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, MAGNESIUM CHLORIDE, MES        
REMARK 280  BUFFER, PH 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
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                                         
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       31.32750            
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       31.32750            
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       35.45600            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       63.33750            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       35.45600            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       63.33750            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       31.32750            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       35.45600            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       63.33750            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       31.32750            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       35.45600            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       63.33750            
REMARK 290   SMTRY3   8  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: DIMERIC                           
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     GLN B   121                                                      
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     MET A   1    CG   SD   CE                                        
REMARK 470     GLN A  35    CG   CD   OE1  NE2                                  
REMARK 470     ARG A  36    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A  45    CG   CD   CE   NZ                                   
REMARK 470     MET B   1    CG   SD   CE                                        
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A  86   CB  -  CG  -  OD1 ANGL. DEV. =   6.5 DEGREES          
REMARK 500    ASP B   9   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ASP B  24   CB  -  CG  -  OD2 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ASP B  47   CB  -  CG  -  OD1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ASP B  57   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ASP B  66   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500    ASP B  97   CB  -  CG  -  OD2 ANGL. DEV. =   6.4 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    LYS A  45       76.17     43.61                                   
REMARK 500    TRP A  70       -9.29   -144.82                                   
REMARK 500    ARG A  81       96.07    -65.33                                   
REMARK 500    THR B   2      108.02    -56.96                                   
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 ASP A   9   OD1                                                    
REMARK 620 2 ASP A  52   OD2  84.0                                              
REMARK 620 3 GLY A  54   O    79.4  95.7                                        
REMARK 620 4 BEF A 301   F1  162.3  80.0  94.6                                  
REMARK 620 5 HOH A 352   O   110.5  69.0 159.9  70.6                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             BEF A 301  BE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  52   OD1                                                    
REMARK 620 2 BEF A 301   F1  110.4                                              
REMARK 620 3 BEF A 301   F2   91.4 109.4                                        
REMARK 620 4 BEF A 301   F3  124.2 110.7 108.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B 202  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B   9   OD1                                                    
REMARK 620 2 ASP B  52   OD2  79.0                                              
REMARK 620 3 GLY B  54   O    95.8  86.2                                        
REMARK 620 4 BEF B 302   F1  171.9  95.5  89.7                                  
REMARK 620 5 HOH B 357   O    90.0  98.3 173.3  84.9                            
REMARK 620 6 HOH B 358   O    96.9 171.3  86.7  89.3  89.2                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             BEF B 302  BE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B  52   OD1                                                    
REMARK 620 2 BEF B 302   F1  112.4                                              
REMARK 620 3 BEF B 302   F2  111.7 109.7                                        
REMARK 620 4 BEF B 302   F3  104.7 107.7 110.5                                  
REMARK 620 N                    1     2     3                                   
REMARK 700                                                                      
REMARK 700 SHEET                                                                
REMARK 700 DETERMINATION METHOD: AUTHOR                                         
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 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 202                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEF A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEF B 302                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1ZH2   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1ZH3   RELATED DB: PDB                                   
DBREF  1ZH4 A    1   121  UNP    P21866   KDPE_ECOLI       1    121             
DBREF  1ZH4 B    1   121  UNP    P21866   KDPE_ECOLI       1    121             
SEQADV 1ZH4 GLN A  121  UNP  P21866    ALA   121 ENGINEERED MUTATION            
SEQADV 1ZH4 GLN B  121  UNP  P21866    ALA   121 ENGINEERED MUTATION            
SEQRES   1 A  121  MET THR ASN VAL LEU ILE VAL GLU ASP GLU GLN ALA ILE          
SEQRES   2 A  121  ARG ARG PHE LEU ARG THR ALA LEU GLU GLY ASP GLY MET          
SEQRES   3 A  121  ARG VAL PHE GLU ALA GLU THR LEU GLN ARG GLY LEU LEU          
SEQRES   4 A  121  GLU ALA ALA THR ARG LYS PRO ASP LEU ILE ILE LEU ASP          
SEQRES   5 A  121  LEU GLY LEU PRO ASP GLY ASP GLY ILE GLU PHE ILE ARG          
SEQRES   6 A  121  ASP LEU ARG GLN TRP SER ALA VAL PRO VAL ILE VAL LEU          
SEQRES   7 A  121  SER ALA ARG SER GLU GLU SER ASP LYS ILE ALA ALA LEU          
SEQRES   8 A  121  ASP ALA GLY ALA ASP ASP TYR LEU SER LYS PRO PHE GLY          
SEQRES   9 A  121  ILE GLY GLU LEU GLN ALA ARG LEU ARG VAL ALA LEU ARG          
SEQRES  10 A  121  ARG HIS SER GLN                                              
SEQRES   1 B  121  MET THR ASN VAL LEU ILE VAL GLU ASP GLU GLN ALA ILE          
SEQRES   2 B  121  ARG ARG PHE LEU ARG THR ALA LEU GLU GLY ASP GLY MET          
SEQRES   3 B  121  ARG VAL PHE GLU ALA GLU THR LEU GLN ARG GLY LEU LEU          
SEQRES   4 B  121  GLU ALA ALA THR ARG LYS PRO ASP LEU ILE ILE LEU ASP          
SEQRES   5 B  121  LEU GLY LEU PRO ASP GLY ASP GLY ILE GLU PHE ILE ARG          
SEQRES   6 B  121  ASP LEU ARG GLN TRP SER ALA VAL PRO VAL ILE VAL LEU          
SEQRES   7 B  121  SER ALA ARG SER GLU GLU SER ASP LYS ILE ALA ALA LEU          
SEQRES   8 B  121  ASP ALA GLY ALA ASP ASP TYR LEU SER LYS PRO PHE GLY          
SEQRES   9 B  121  ILE GLY GLU LEU GLN ALA ARG LEU ARG VAL ALA LEU ARG          
SEQRES  10 B  121  ARG HIS SER GLN                                              
HET     MG  A 201       1                                                       
HET    BEF  A 301       4                                                       
HET     MG  B 202       1                                                       
HET    BEF  B 302       4                                                       
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     BEF BERYLLIUM TRIFLUORIDE ION                                        
FORMUL   3   MG    2(MG 2+)                                                     
FORMUL   4  BEF    2(BE F3 1-)                                                  
FORMUL   7  HOH   *107(H2 O)                                                    
HELIX    1   1 GLU A   10  GLY A   23  1                                  14    
HELIX    2   2 LEU A   34  ARG A   44  1                                  11    
HELIX    3   3 GLY A   60  ARG A   68  1                                   9    
HELIX    4   4 GLU A   83  ALA A   93  1                                  11    
HELIX    5   5 GLY A  104  GLN A  121  1                                  18    
HELIX    6   6 GLU B   10  GLY B   23  1                                  14    
HELIX    7   7 THR B   33  LYS B   45  1                                  13    
HELIX    8   8 GLY B   60  SER B   71  1                                  12    
HELIX    9   9 GLU B   83  GLY B   94  1                                  12    
HELIX   10  10 GLY B  104  HIS B  119  1                                  16    
SHEET    1   A 5 ARG A  27  ALA A  31  0                                        
SHEET    2   A 5 ASN A   3  VAL A   7  1  N  VAL A   4   O  ARG A  27           
SHEET    3   A 5 LEU A  48  LEU A  51  1  O  ILE A  50   N  LEU A   5           
SHEET    4   A 5 VAL A  75  SER A  79  1  O  ILE A  76   N  ILE A  49           
SHEET    5   A 5 ASP A  97  SER A 100  1  O  LEU A  99   N  VAL A  77           
SHEET    1   C 5 ARG B  27  ALA B  31  0                                        
SHEET    2   C 5 ASN B   3  VAL B   7  1  N  VAL B   4   O  PHE B  29           
SHEET    3   C 5 LEU B  48  LEU B  51  1  O  ILE B  50   N  LEU B   5           
SHEET    4   C 5 VAL B  75  SER B  79  1  O  LEU B  78   N  LEU B  51           
SHEET    5   C 5 ASP B  97  SER B 100  1  O  LEU B  99   N  VAL B  77           
LINK         OD1 ASP A   9                MG    MG A 201     1555   1555  1.93  
LINK         OD2 ASP A  52                MG    MG A 201     1555   1555  2.32  
LINK         OD1 ASP A  52                BE   BEF A 301     1555   1555  1.90  
LINK         O   GLY A  54                MG    MG A 201     1555   1555  2.18  
LINK        MG    MG A 201                 F1  BEF A 301     1555   1555  2.14  
LINK        MG    MG A 201                 O   HOH A 352     1555   1555  1.96  
LINK         OD1 ASP B   9                MG    MG B 202     1555   1555  2.11  
LINK         OD2 ASP B  52                MG    MG B 202     1555   1555  2.18  
LINK         OD1 ASP B  52                BE   BEF B 302     1555   1555  1.87  
LINK         O   GLY B  54                MG    MG B 202     1555   1555  2.11  
LINK        MG    MG B 202                 F1  BEF B 302     1555   1555  2.22  
LINK        MG    MG B 202                 O   HOH B 357     1555   1555  2.13  
LINK        MG    MG B 202                 O   HOH B 358     1555   1555  2.21  
CISPEP   1 LYS A  101    PRO A  102          0        -0.36                     
CISPEP   2 LYS B  101    PRO B  102          0        -2.37                     
SITE     1 AC1  5 ASP A   9  ASP A  52  GLY A  54  BEF A 301                    
SITE     2 AC1  5 HOH A 352                                                     
SITE     1 AC2  6 ASP B   9  ASP B  52  GLY B  54  BEF B 302                    
SITE     2 AC2  6 HOH B 357  HOH B 358                                          
SITE     1 AC3  8 ASP A  52  LEU A  53  GLY A  54  SER A  79                    
SITE     2 AC3  8 ALA A  80  LYS A 101   MG A 201  HOH A 352                    
SITE     1 AC4  8 ASP B  52  LEU B  53  GLY B  54  SER B  79                    
SITE     2 AC4  8 ALA B  80  LYS B 101   MG B 202  HOH B 357                    
CRYST1   70.912  126.675   62.655  90.00  90.00  90.00 C 2 2 21     16          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.014102  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.007894  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.015960        0.00000