HEADER    HYDROLASE                               10-SEP-04   1XEO              
TITLE     HIGH RESOLUTION CRYSTALS STRUCTURE OF COBALT- PEPTIDE DEFORMYLASE     
TITLE    2 BOUND TO FORMATE                                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PEPTIDE DEFORMYLASE;                                       
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: PDF, POLYPEPTIDE DEFORMYLASE;                               
COMPND   5 EC: 3.5.1.88                                                         
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 469008;                                              
SOURCE   4 STRAIN: BL21(DE3)                                                    
KEYWDS    COBALT DEFORMYLASE, FORMATE, HYDROLASE                                
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    R.JAIN,B.HAO,R.-P.LIU,M.K.CHAN                                        
REVDAT   5   14-FEB-24 1XEO    1       REMARK LINK                              
REVDAT   4   13-JUL-11 1XEO    1       VERSN                                    
REVDAT   3   24-FEB-09 1XEO    1       VERSN                                    
REVDAT   2   19-APR-05 1XEO    1       JRNL                                     
REVDAT   1   29-MAR-05 1XEO    0                                                
JRNL        AUTH   R.JAIN,B.HAO,R.-P.LIU,M.K.CHAN                               
JRNL        TITL   STRUCTURES OF E. COLI PEPTIDE DEFORMYLASE BOUND TO FORMATE:  
JRNL        TITL 2 INSIGHT INTO THE PREFERENCE FOR FE2+ OVER ZN2+ AS THE ACTIVE 
JRNL        TITL 3 SITE METAL                                                   
JRNL        REF    J.AM.CHEM.SOC.                V. 127  4558 2005              
JRNL        REFN                   ISSN 0002-7863                               
JRNL        PMID   15796505                                                     
JRNL        DOI    10.1021/JA0503074                                            
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.30 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
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) : 1.30                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 19.94                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1326147.320                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 92.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 45929                          
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) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.215                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.100                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 4626                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.003                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 6                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.30                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.38                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 78.30                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 5687                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3220                       
REMARK   3   BIN FREE R VALUE                    : 0.3270                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 10.10                        
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 639                          
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : 0.013                        
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1324                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 4                                       
REMARK   3   SOLVENT ATOMS            : 223                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.10                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 23.90                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.18000                                              
REMARK   3    B22 (A**2) : 3.18000                                              
REMARK   3    B33 (A**2) : -6.36000                                             
REMARK   3    B12 (A**2) : 1.07000                                              
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) : 0.15                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.12                            
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) : 0.17                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.13                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.020                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.800                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 22.50                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.400                           
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) : 1.430 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.930 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 3.540 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 4.880 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.44                                                 
REMARK   3   BSOL        : 59.04                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN_REP.PARAM                              
REMARK   3  PARAMETER FILE  2  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  3  : CMB.PAR                                        
REMARK   3  PARAMETER FILE  4  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER_REP.TOP                                  
REMARK   3  TOPOLOGY FILE  3   : CMB.TOP                                        
REMARK   3  TOPOLOGY FILE  4   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1XEO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 28-SEP-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000030274.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 09-DEC-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 93                                 
REMARK 200  PH                             : 4.6                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : APS                                
REMARK 200  BEAMLINE                       : 14-BM-C                            
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.000                              
REMARK 200  MONOCHROMATOR                  : BENT CYLINDRICAL GE(111)           
REMARK 200  OPTICS                         : BENT CONICAL SI-MIRROR (RH         
REMARK 200                                   COATING)                           
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   : 48707                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.300                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.2                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.07100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 28.1700                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.35                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 86.9                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.23900                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 3.970                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: CNS                                                   
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 50.32                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.57                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM ACETATE, SODIUM FORMATE, PH       
REMARK 280  4.6, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   -X,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+5/6                                            
REMARK 290       6555   X-Y,X,Z+1/6                                             
REMARK 290       7555   Y,X,-Z+1/3                                              
REMARK 290       8555   X-Y,-Y,-Z                                               
REMARK 290       9555   -X,-X+Y,-Z+2/3                                          
REMARK 290      10555   -Y,-X,-Z+5/6                                            
REMARK 290      11555   -X+Y,Y,-Z+1/2                                           
REMARK 290      12555   X,X-Y,-Z+1/6                                            
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       74.81000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000      149.62000            
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      112.21500            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000      187.02500            
REMARK 290   SMTRY1   6  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       37.40500            
REMARK 290   SMTRY1   7 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       74.81000            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   9 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   9  0.000000  0.000000 -1.000000      149.62000            
REMARK 290   SMTRY1  10  0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  10 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000      187.02500            
REMARK 290   SMTRY1  11 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  11  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000      112.21500            
REMARK 290   SMTRY1  12  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  12  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       37.40500            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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 A 595  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   166                                                      
REMARK 465     ARG A   167                                                      
REMARK 465     ALA A   168                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   OE1  GLU A    42     O    HOH A   577              2.14            
REMARK 500   O    HOH A   480     O    HOH A   541              2.18            
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    PRO A   9       33.16    -91.25                                   
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                              CO A 301  CO                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A  90   SG                                                     
REMARK 620 2 HIS A 132   NE2 114.7                                              
REMARK 620 3 HIS A 136   NE2 100.8 102.8                                        
REMARK 620 4 FMT A 401   O1  149.4  92.0  86.6                                  
REMARK 620 5 FMT A 401   O2   96.0 119.6 121.7  56.0                            
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 CO A 301                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FMT A 401                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1BSK   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 1DFF   RELATED DB: PDB                                   
DBREF  1XEO A    1   168  UNP    P0A6K3   DEF_ECOLI        1    168             
SEQRES   1 A  168  SER VAL LEU GLN VAL LEU HIS ILE PRO ASP GLU ARG LEU          
SEQRES   2 A  168  ARG LYS VAL ALA LYS PRO VAL GLU GLU VAL ASN ALA GLU          
SEQRES   3 A  168  ILE GLN ARG ILE VAL ASP ASP MET PHE GLU THR MET TYR          
SEQRES   4 A  168  ALA GLU GLU GLY ILE GLY LEU ALA ALA THR GLN VAL ASP          
SEQRES   5 A  168  ILE HIS GLN ARG ILE ILE VAL ILE ASP VAL SER GLU ASN          
SEQRES   6 A  168  ARG ASP GLU ARG LEU VAL LEU ILE ASN PRO GLU LEU LEU          
SEQRES   7 A  168  GLU LYS SER GLY GLU THR GLY ILE GLU GLU GLY CYS LEU          
SEQRES   8 A  168  SER ILE PRO GLU GLN ARG ALA LEU VAL PRO ARG ALA GLU          
SEQRES   9 A  168  LYS VAL LYS ILE ARG ALA LEU ASP ARG ASP GLY LYS PRO          
SEQRES  10 A  168  PHE GLU LEU GLU ALA ASP GLY LEU LEU ALA ILE CYS ILE          
SEQRES  11 A  168  GLN HIS GLU MET ASP HIS LEU VAL GLY LYS LEU PHE MET          
SEQRES  12 A  168  ASP TYR LEU SER PRO LEU LYS GLN GLN ARG ILE ARG GLN          
SEQRES  13 A  168  LYS VAL GLU LYS LEU ASP ARG LEU LYS ALA ARG ALA              
HET     CO  A 301       1                                                       
HET    FMT  A 401       3                                                       
HETNAM      CO COBALT (II) ION                                                  
HETNAM     FMT FORMIC ACID                                                      
FORMUL   2   CO    CO 2+                                                        
FORMUL   3  FMT    C H2 O2                                                      
FORMUL   4  HOH   *223(H2 O)                                                    
HELIX    1   1 ASP A   10  LYS A   15  5                                   6    
HELIX    2   2 ASN A   24  GLU A   41  1                                  18    
HELIX    3   3 THR A   49  ASP A   52  5                                   4    
HELIX    4   4 ASP A  123  VAL A  138  1                                  16    
HELIX    5   5 LEU A  141  LEU A  146  5                                   6    
HELIX    6   6 SER A  147  LYS A  165  1                                  19    
SHEET    1   A 5 GLY A  45  ALA A  47  0                                        
SHEET    2   A 5 ILE A  57  ILE A  60 -1  O  VAL A  59   N  LEU A  46           
SHEET    3   A 5 LEU A  70  SER A  81 -1  O  LEU A  70   N  ILE A  60           
SHEET    4   A 5 LYS A 105  LEU A 111 -1  O  LYS A 107   N  LEU A  78           
SHEET    5   A 5 PRO A 117  ALA A 122 -1  O  ALA A 122   N  VAL A 106           
SHEET    1   B 2 GLU A  87  GLU A  88  0                                        
SHEET    2   B 2 ALA A  98  LEU A  99 -1  O  ALA A  98   N  GLU A  88           
LINK         SG  CYS A  90                CO    CO A 301     1555   1555  2.31  
LINK         NE2 HIS A 132                CO    CO A 301     1555   1555  2.00  
LINK         NE2 HIS A 136                CO    CO A 301     1555   1555  2.00  
LINK        CO    CO A 301                 O1  FMT A 401     1555   1555  2.32  
LINK        CO    CO A 301                 O2  FMT A 401     1555   1555  2.30  
CISPEP   1 ILE A    8    PRO A    9          0         0.94                     
SITE     1 AC1  5 GLN A  50  CYS A  90  HIS A 132  HIS A 136                    
SITE     2 AC1  5 FMT A 401                                                     
SITE     1 AC2  8 GLY A  45  GLN A  50  CYS A  90  LEU A  91                    
SITE     2 AC2  8 HIS A 132  GLU A 133  HIS A 136   CO A 301                    
CRYST1   54.420   54.420  224.430  90.00  90.00 120.00 P 61 2 2     12          
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      0.018376  0.010609  0.000000        0.00000                         
SCALE2      0.000000  0.021218  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.004456        0.00000