HEADER    SIGNALING PROTEIN                       09-JAN-06   2FMK              
TITLE     CRYSTAL STRUCTURE OF MG2+ AND BEF3- BOUND CHEY IN COMPLEX WITH CHEZ   
TITLE    2 200-214 SOLVED FROM A P2(1)2(1)2 CRYSTAL GROWN IN MES (PH 6.0)       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CHEMOTAXIS PROTEIN CHEY;                                   
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES;                                                     
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: C-TERMINAL 15-MER FROM CHEMOTAXIS PROTEIN CHEZ;            
COMPND   7 CHAIN: B;                                                            
COMPND   8 FRAGMENT: RESIDUES 200-214;                                          
COMPND   9 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SALMONELLA TYPHIMURIUM;                         
SOURCE   3 ORGANISM_TAXID: 99287;                                               
SOURCE   4 STRAIN: LT2;                                                         
SOURCE   5 GENE: CHEY;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: HB101;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PUC18;                                    
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 SYNTHETIC: YES;                                                      
SOURCE  13 OTHER_DETAILS: THIS SEQUENCE CORRESPONDS TO THE C-TERMINAL 15        
SOURCE  14 RESIDUES OF THE CHEZ PROTEIN OCCURRING NATURALLY IN SALMONELLA       
SOURCE  15 ENTERICA SEROVAR TYPHUMURIUM                                         
KEYWDS    CHEMOTAXIS; BEF(3)(-)-BOUND CHEY; CHEY-CHEZ PEPTIDE COMPLEX,          
KEYWDS   2 SIGNALING PROTEIN                                                    
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.GUHANIYOGI,V.L.ROBINSON,A.M.STOCK                                   
REVDAT   7   30-OCT-24 2FMK    1       REMARK                                   
REVDAT   6   30-AUG-23 2FMK    1       REMARK SEQADV LINK                       
REVDAT   5   13-JUL-11 2FMK    1       VERSN                                    
REVDAT   4   24-FEB-09 2FMK    1       VERSN                                    
REVDAT   3   11-JUL-06 2FMK    3       HETATM HET    DBREF  SEQADV              
REVDAT   2   13-JUN-06 2FMK    1       JRNL                                     
REVDAT   1   23-MAY-06 2FMK    0                                                
JRNL        AUTH   J.GUHANIYOGI,V.L.ROBINSON,A.M.STOCK                          
JRNL        TITL   CRYSTAL STRUCTURES OF BERYLLIUM FLUORIDE-FREE AND BERYLLIUM  
JRNL        TITL 2 FLUORIDE-BOUND CHEY IN COMPLEX WITH THE CONSERVED C-TERMINAL 
JRNL        TITL 3 PEPTIDE OF CHEZ REVEAL DUAL BINDING MODES SPECIFIC TO CHEY   
JRNL        TITL 4 CONFORMATION                                                 
JRNL        REF    J.MOL.BIOL.                   V. 359   624 2006              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   16674976                                                     
JRNL        DOI    10.1016/J.JMB.2006.03.050                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.2                                           
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) : 2.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 8735                           
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) : 0.191                           
REMARK   3   R VALUE            (WORKING SET) : 0.186                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.000                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 871                             
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) : 2.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 2.05                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 560                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.37                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.1960                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 73                           
REMARK   3   BIN FREE R VALUE                    : 0.2900                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1098                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 5                                       
REMARK   3   SOLVENT ATOMS            : 90                                      
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 10.92                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.22000                                             
REMARK   3    B22 (A**2) : -0.09000                                             
REMARK   3    B33 (A**2) : 1.31000                                              
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): 0.246         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.189         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.117         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 4.062         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.932                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.894                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  1131 ; 0.008 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  1520 ; 1.116 ; 1.983       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   141 ; 5.260 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):    52 ;41.684 ;26.538       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   215 ;12.530 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):     4 ; 8.093 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   177 ; 0.076 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):   830 ; 0.003 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):   541 ; 0.197 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):   785 ; 0.298 ; 0.200       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):    81 ; 0.125 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):     1 ; 0.014 ; 0.200       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    52 ; 0.175 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    19 ; 0.274 ; 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):   744 ; 0.532 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  1140 ; 0.901 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):   435 ; 1.400 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):   380 ; 2.300 ; 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   : 1.40                                          
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 2FMK COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 09-FEB-06.                  
REMARK 100 THE DEPOSITION ID IS D_1000036056.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 13-NOV-04                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
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) : 1.0718                             
REMARK 200  MONOCHROMATOR                  : KOHZU DOUBLE CRYSTAL               
REMARK 200                                   MONOCHROMATOR WITH A SAGITTALLY    
REMARK 200                                   FOCUSED SECOND CRYSTAL. CRYSTAL    
REMARK 200                                   TYPE 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   : 8762                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.999                              
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     (%) : 99.4                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : 0.05200                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 38.6000                            
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     (%) : 99.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : NULL                               
REMARK 200  R SYM FOR SHELL            (I) : 0.08000                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 21.50                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: PDB ENTRY 1FQW                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 36.80                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.95                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 37.5% PEG 8000, 0.05M SODIUM PHOSPHATE   
REMARK 280  (MONOBASIC), 0.1M MES, PH 6.0, VAPOR DIFFUSION, HANGING DROP,       
REMARK 280  TEMPERATURE 298.0K                                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 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+1/2,Y+1/2,-Z                                         
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        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       27.09450            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       30.97650            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       27.09450            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       30.97650            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: DIMERIC                           
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC                    
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 1430 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 7280 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -13.0 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 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A9077  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     MET A     1                                                      
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    TRP A  58      -70.26    -97.94                                   
REMARK 500    ASN A  62      -58.10     75.01                                   
REMARK 500    MET A  78       21.06   -162.87                                   
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 A9001  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  13   OD1                                                    
REMARK 620 2 ASP A  57   OD2  86.4                                              
REMARK 620 3 ASN A  59   O    89.1  90.6                                        
REMARK 620 4 BEF A 501   F1  175.4  89.8  93.7                                  
REMARK 620 5 HOH A9003   O    82.8  84.5 170.7  94.2                            
REMARK 620 6 HOH A9035   O    87.0 173.4  88.6  96.7  95.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             BEF A 501  BE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  57   OD1                                                    
REMARK 620 2 BEF A 501   F1  113.1                                              
REMARK 620 3 BEF A 501   F2  104.0 109.6                                        
REMARK 620 4 BEF A 501   F3  110.6 109.9 109.5                                  
REMARK 620 5  MG A9001  MG    84.0  29.5 124.5 118.6                            
REMARK 620 N                    1     2     3     4                             
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 9001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEF A 501                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2FKA   RELATED DB: PDB                                   
REMARK 900 THE MG2+ AND BEF3--BOUND CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME       
REMARK 900 SPACE GROUP BUT SOLVED FROM CRYSTALS GROWN IN CAPS (PH 10.5)         
REMARK 900 RELATED ID: 2FLK   RELATED DB: PDB                                   
REMARK 900 THE CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME SPACE GROUP AND SOLVED     
REMARK 900 FROM CRYSTALS GROWN UNDER THE SAME CONDITIONS BUT WITHOUT MG2+ AND   
REMARK 900 BEF3- LIGANDS BOUND TO CHEY                                          
REMARK 900 RELATED ID: 2FLW   RELATED DB: PDB                                   
REMARK 900 THE MG2+ AND BEF3--BOUND CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME       
REMARK 900 SPACE GROUP BUT SOLVED FROM CRYSTALS GROWN IN HEPES (PH 7.5)         
REMARK 900 RELATED ID: 2FMF   RELATED DB: PDB                                   
REMARK 900 THE CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME SPACE GROUP BUT SOLVED     
REMARK 900 FROM CRYSTALS GROWN IN HEPES (PH 7.5) AND WITHOUT MG2+ AND BEF3-     
REMARK 900 LIGANDS BOUND TO CHEY                                                
REMARK 900 RELATED ID: 2FMH   RELATED DB: PDB                                   
REMARK 900 THE MG2+ AND BEF3--BOUND CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME       
REMARK 900 SPACE GROUP BUT SOLVED FROM CRYSTALS GROWN IN TRIS (PH 8.4)          
REMARK 900 RELATED ID: 2FMI   RELATED DB: PDB                                   
REMARK 900 THE CHEY-CHEZ PEPTIDE COMPLEX IN THE SAME SPACE GROUP BUT SOLVED     
REMARK 900 FROM CRYSTALS GROWN IN TRIS (PH 8.4) AND WITHOUT MG2+ AND BEF3-      
REMARK 900 LIGANDS BOUND TO CHEY                                                
DBREF  2FMK A    2   129  UNP    P0A2D5   CHEY_SALTY       1    128             
DBREF  2FMK B  200   214  UNP    P07800   CHEZ_SALTY     200    214             
SEQADV 2FMK MET A    1  UNP  P0A2D5              INITIATING METHIONINE          
SEQRES   1 A  129  MET ALA ASP LYS GLU LEU LYS PHE LEU VAL VAL ASP ASP          
SEQRES   2 A  129  PHE SER THR MET ARG ARG ILE VAL ARG ASN LEU LEU LYS          
SEQRES   3 A  129  GLU LEU GLY PHE ASN ASN VAL GLU GLU ALA GLU ASP GLY          
SEQRES   4 A  129  VAL ASP ALA LEU ASN LYS LEU GLN ALA GLY GLY PHE GLY          
SEQRES   5 A  129  PHE ILE ILE SER ASP TRP ASN MET PRO ASN MET ASP GLY          
SEQRES   6 A  129  LEU GLU LEU LEU LYS THR ILE ARG ALA ASP SER ALA MET          
SEQRES   7 A  129  SER ALA LEU PRO VAL LEU MET VAL THR ALA GLU ALA LYS          
SEQRES   8 A  129  LYS GLU ASN ILE ILE ALA ALA ALA GLN ALA GLY ALA SER          
SEQRES   9 A  129  GLY TYR VAL VAL LYS PRO PHE THR ALA ALA THR LEU GLU          
SEQRES  10 A  129  GLU LYS LEU ASN LYS ILE PHE GLU LYS LEU GLY MET              
SEQRES   1 B   16  ACE ALA SER GLN ASP GLN VAL ASP ASP LEU LEU ASP SER          
SEQRES   2 B   16  LEU GLY PHE                                                  
HET    ACE  B 199       3                                                       
HET     MG  A9001       1                                                       
HET    BEF  A 501       4                                                       
HETNAM     ACE ACETYL GROUP                                                     
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     BEF BERYLLIUM TRIFLUORIDE ION                                        
FORMUL   2  ACE    C2 H4 O                                                      
FORMUL   3   MG    MG 2+                                                        
FORMUL   4  BEF    BE F3 1-                                                     
FORMUL   5  HOH   *90(H2 O)                                                     
HELIX    1   1 PHE A   14  GLY A   29  1                                  16    
HELIX    2   2 ASP A   38  GLN A   47  1                                  10    
HELIX    3   3 ASP A   64  ALA A   74  1                                  11    
HELIX    4   4 LYS A   91  ALA A  101  1                                  11    
HELIX    5   5 THR A  112  GLY A  128  1                                  17    
HELIX    6   6 SER B  201  LEU B  212  1                                  12    
SHEET    1   A 5 VAL A  33  ALA A  36  0                                        
SHEET    2   A 5 LYS A   7  VAL A  11  1  N  VAL A  10   O  GLU A  34           
SHEET    3   A 5 PHE A  51  SER A  56  1  O  ILE A  55   N  VAL A  11           
SHEET    4   A 5 VAL A  83  THR A  87  1  O  LEU A  84   N  SER A  56           
SHEET    5   A 5 GLY A 105  VAL A 108  1  O  VAL A 107   N  MET A  85           
LINK         C   ACE B 199                 N   ALA B 200     1555   1555  2.05  
LINK         OD1 ASP A  13                MG    MG A9001     1555   1555  2.16  
LINK         OD1 ASP A  57                BE   BEF A 501     1555   1555  1.68  
LINK         OD2 ASP A  57                MG    MG A9001     1555   1555  2.03  
LINK         O   ASN A  59                MG    MG A9001     1555   1555  2.09  
LINK         F1  BEF A 501                MG    MG A9001     1555   1555  1.93  
LINK        BE   BEF A 501                MG    MG A9001     1555   1555  3.09  
LINK        MG    MG A9001                 O   HOH A9003     1555   1555  2.18  
LINK        MG    MG A9001                 O   HOH A9035     1555   1555  2.07  
CISPEP   1 LYS A  109    PRO A  110          0        -2.30                     
SITE     1 AC1  6 ASP A  13  ASP A  57  ASN A  59  BEF A 501                    
SITE     2 AC1  6 HOH A9003  HOH A9035                                          
SITE     1 AC2 10 ASP A  57  TRP A  58  ASN A  59  THR A  87                    
SITE     2 AC2 10 ALA A  88  LYS A 109   MG A9001  HOH A9003                    
SITE     3 AC2 10 HOH A9009  HOH A9035                                          
CRYST1   54.189   61.953   36.617  90.00  90.00  90.00 P 21 21 2     4          
ORIGX1      1.000000  0.000000  0.000000        0.00000                         
ORIGX2      0.000000  1.000000  0.000000        0.00000                         
ORIGX3      0.000000  0.000000  1.000000        0.00000                         
SCALE1      0.018454  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.016141  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.027310        0.00000