HEADER    OXIDOREDUCTASE/DNA                      01-JUL-09   3I49              
TITLE     CRYSTAL STRUCTURE OF ALKB IN COMPLEX WITH FE(II), 2-OXOGLUTARATE AND  
TITLE    2 METHYLATED TRINUCLEOTIDE T-MEC-T                                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ALPHA-KETOGLUTARATE-DEPENDENT DIOXYGENASE ALKB;            
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 12-216;                                       
COMPND   5 SYNONYM: ALKYLATED DNA REPAIR PROTEIN ALKB;                          
COMPND   6 EC: 1.14.11.-;                                                       
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MOL_ID: 2;                                                           
COMPND   9 MOLECULE: DNA (5'-D(P*TP*(ME6)P*T)-3');                              
COMPND  10 CHAIN: B;                                                            
COMPND  11 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI;                               
SOURCE   3 ORGANISM_TAXID: 83333;                                               
SOURCE   4 STRAIN: K-12;                                                        
SOURCE   5 GENE: AIDD, ALKB, B2212, JW2200;                                     
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET26B;                                   
SOURCE  11 MOL_ID: 2;                                                           
SOURCE  12 SYNTHETIC: YES                                                       
KEYWDS    BETA JELLYROLL, PROTEIN-DNA COMPLEX, DIOXYGENASE, DNA DAMAGE, DNA     
KEYWDS   2 REPAIR, IRON, METAL-BINDING, OXIDOREDUCTASE, OXIDOREDUCTASE-DNA      
KEYWDS   3 COMPLEX                                                              
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    B.YU,J.F.HUNT                                                         
REVDAT   5   21-FEB-24 3I49    1       REMARK SEQADV LINK                       
REVDAT   4   01-NOV-17 3I49    1       REMARK                                   
REVDAT   3   13-JUL-11 3I49    1       VERSN                                    
REVDAT   2   08-SEP-09 3I49    1       JRNL                                     
REVDAT   1   25-AUG-09 3I49    0                                                
JRNL        AUTH   B.YU,J.F.HUNT                                                
JRNL        TITL   ENZYMOLOGICAL AND STRUCTURAL STUDIES OF THE MECHANISM OF     
JRNL        TITL 2 PROMISCUOUS SUBSTRATE RECOGNITION BY THE OXIDATIVE DNA       
JRNL        TITL 3 REPAIR ENZYME ALKB.                                          
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 106 14315 2009              
JRNL        REFN                   ISSN 0027-8424                               
JRNL        PMID   19706517                                                     
JRNL        DOI    10.1073/PNAS.0812938106                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.2                                              
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 : NULL                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 33.80                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 1.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 1210185.000                    
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : 0.0000                         
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 95.5                           
REMARK   3   NUMBER OF REFLECTIONS             : 24783                          
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) : 0.186                           
REMARK   3   FREE R VALUE                     : 0.214                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 10.300                          
REMARK   3   FREE R VALUE TEST SET COUNT      : 2550                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : 0.004                           
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) : 1.60                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.70                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 88.20                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 3439                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2220                       
REMARK   3   BIN FREE R VALUE                    : 0.2520                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 9.40                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 355                          
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            : 1564                                    
REMARK   3   NUCLEIC ACID ATOMS       : 61                                      
REMARK   3   HETEROGEN ATOMS          : 11                                      
REMARK   3   SOLVENT ATOMS            : 281                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.71                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.50000                                              
REMARK   3    B22 (A**2) : 0.50000                                              
REMARK   3    B33 (A**2) : -1.01000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.17                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.10                            
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) : 0.20                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.11                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.005                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.300                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 24.80                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 0.810                           
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) : 1.210 ; 1.500                
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : 1.920 ; 2.000                
REMARK   3   SIDE-CHAIN BOND              (A**2) : 1.830 ; 2.000                
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : 2.670 ; 2.500                
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : FLAT MODEL                                           
REMARK   3   KSOL        : 0.35                                                 
REMARK   3   BSOL        : 52.47                                                
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  : DNA-RNA_REP.PARAM_BY                           
REMARK   3  PARAMETER FILE  3  : WATER_REP.PARAM                                
REMARK   3  PARAMETER FILE  4  : ION.PARAM                                      
REMARK   3  PARAMETER FILE  5  : AKG.PAR                                        
REMARK   3  PARAMETER FILE  6  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : DNA-RNA.TOP_BY                                 
REMARK   3  TOPOLOGY FILE  4   : ION.TOP                                        
REMARK   3  TOPOLOGY FILE  5   : AKG.TOP                                        
REMARK   3  TOPOLOGY FILE  6   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED                   
REMARK   4                                                                      
REMARK   4 3I49 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 02-JUL-09.                  
REMARK 100 THE DEPOSITION ID IS D_1000053944.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-NOV-06                          
REMARK 200  TEMPERATURE           (KELVIN) : NULL                               
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : NSLS                               
REMARK 200  BEAMLINE                       : X4C                                
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : NULL                               
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97947                            
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-3000                    
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 25984                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 50.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 7.900                              
REMARK 200  R MERGE                    (I) : 0.07400                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.2000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.60                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.63                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 8.20                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.65600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : NULL                               
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: COMO 1.2                                              
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 41.93                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.12                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, SODIUM FORMATE, VAPOR          
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 298K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43                             
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   -Y,X,Z+3/4                                              
REMARK 290       4555   Y,-X,Z+1/4                                              
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       58.60650            
REMARK 290   SMTRY1   3  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       87.90975            
REMARK 290   SMTRY1   4  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       29.30325            
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: 1570 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 9240 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -21.0 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 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    11                                                      
REMARK 465     GLN A    12                                                      
REMARK 465     GLU A    13                                                      
REMARK 465     PRO A    14                                                      
REMARK 465     LYS A   215                                                      
REMARK 465     GLU A   216                                                      
REMARK 465     ASN A   217                                                      
REMARK 465     LEU A   218                                                      
REMARK 465     TYR A   219                                                      
REMARK 465     PHE A   220                                                      
REMARK 465     GLN A   221                                                      
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   O2   AKG A   400    FE    FE2 A   300              2.10            
REMARK 500   OD1  ASP A   133    FE    FE2 A   300              2.13            
REMARK 500   NE2  HIS A   187    FE    FE2 A   300              2.16            
REMARK 500  FE    FE2 A   300     O    HOH A   601              2.16            
REMARK 500   NE2  HIS A   131    FE    FE2 A   300              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500     DT B 501   P      DT B 501   OP3    -0.086                       
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    GLN A  74       78.85   -150.14                                   
REMARK 500    ILE A 201      -84.97     69.72                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE AKG A 400                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE FE2 A 300                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 3I3M   RELATED DB: PDB                                   
REMARK 900 SAME PROTEIN WITH MN(II) INSTEAD OF FE(II)                           
REMARK 900 RELATED ID: 2IUW   RELATED DB: PDB                                   
REMARK 900 HOMOLOGUE                                                            
REMARK 900 RELATED ID: 3BUC   RELATED DB: PDB                                   
REMARK 900 HOMOLOGUE                                                            
REMARK 900 RELATED ID: 3I3Q   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 3I2O   RELATED DB: PDB                                   
DBREF  3I49 A   12   216  UNP    P05050   ALKB_ECOLI      12    216             
DBREF  3I49 B  501   503  PDB    3I49     3I49           501    503             
SEQADV 3I49 MET A   11  UNP  P05050              INITIATING METHIONINE          
SEQADV 3I49 ASN A  217  UNP  P05050              EXPRESSION TAG                 
SEQADV 3I49 LEU A  218  UNP  P05050              EXPRESSION TAG                 
SEQADV 3I49 TYR A  219  UNP  P05050              EXPRESSION TAG                 
SEQADV 3I49 PHE A  220  UNP  P05050              EXPRESSION TAG                 
SEQADV 3I49 GLN A  221  UNP  P05050              EXPRESSION TAG                 
SEQRES   1 A  211  MET GLN GLU PRO LEU ALA ALA GLY ALA VAL ILE LEU ARG          
SEQRES   2 A  211  ARG PHE ALA PHE ASN ALA ALA GLU GLN LEU ILE ARG ASP          
SEQRES   3 A  211  ILE ASN ASP VAL ALA SER GLN SER PRO PHE ARG GLN MET          
SEQRES   4 A  211  VAL THR PRO GLY GLY TYR THR MET SER VAL ALA MET THR          
SEQRES   5 A  211  ASN CYS GLY HIS LEU GLY TRP THR THR HIS ARG GLN GLY          
SEQRES   6 A  211  TYR LEU TYR SER PRO ILE ASP PRO GLN THR ASN LYS PRO          
SEQRES   7 A  211  TRP PRO ALA MET PRO GLN SER PHE HIS ASN LEU CYS GLN          
SEQRES   8 A  211  ARG ALA ALA THR ALA ALA GLY TYR PRO ASP PHE GLN PRO          
SEQRES   9 A  211  ASP ALA CYS LEU ILE ASN ARG TYR ALA PRO GLY ALA LYS          
SEQRES  10 A  211  LEU SER LEU HIS GLN ASP LYS ASP GLU PRO ASP LEU ARG          
SEQRES  11 A  211  ALA PRO ILE VAL SER VAL SER LEU GLY LEU PRO ALA ILE          
SEQRES  12 A  211  PHE GLN PHE GLY GLY LEU LYS ARG ASN ASP PRO LEU LYS          
SEQRES  13 A  211  ARG LEU LEU LEU GLU HIS GLY ASP VAL VAL VAL TRP GLY          
SEQRES  14 A  211  GLY GLU SER ARG LEU PHE TYR HIS GLY ILE GLN PRO LEU          
SEQRES  15 A  211  LYS ALA GLY PHE HIS PRO LEU THR ILE ASP CYS ARG TYR          
SEQRES  16 A  211  ASN LEU THR PHE ARG GLN ALA GLY LYS LYS GLU ASN LEU          
SEQRES  17 A  211  TYR PHE GLN                                                  
SEQRES   1 B    3   DT ME6  DT                                                  
MODRES 3I49 ME6 B  502   DC                                                     
HET    ME6  B 502      20                                                       
HET    AKG  A 400      10                                                       
HET    FE2  A 300       1                                                       
HETNAM     ME6 [(2R,3S,5R)-5-(4-AZANYL-3-METHYL-2-OXO-PYRIMIDIN-3-IUM-          
HETNAM   2 ME6  1-YL)-3-HYDROXY-OXOLAN-2-YL]METHYL DIHYDROGEN                   
HETNAM   3 ME6  PHOSPHATE                                                       
HETNAM     AKG 2-OXOGLUTARIC ACID                                               
HETNAM     FE2 FE (II) ION                                                      
FORMUL   2  ME6    C10 H17 N3 O7 P 1+                                           
FORMUL   3  AKG    C5 H6 O5                                                     
FORMUL   4  FE2    FE 2+                                                        
FORMUL   5  HOH   *281(H2 O)                                                    
HELIX    1   1 ALA A   29  SER A   44  1                                  16    
HELIX    2   2 PRO A   93  ALA A  107  1                                  15    
HELIX    3   3 GLY A  180  ARG A  183  5                                   4    
SHEET    1   A 6 ALA A  19  LEU A  22  0                                        
SHEET    2   A 6 VAL A 175  TRP A 178 -1  O  VAL A 175   N  LEU A  22           
SHEET    3   A 6 ILE A 143  GLY A 149 -1  N  SER A 145   O  VAL A 176           
SHEET    4   A 6 ARG A 204  ARG A 210 -1  O  TYR A 205   N  LEU A 148           
SHEET    5   A 6 ALA A 116  TYR A 122 -1  N  TYR A 122   O  ARG A 204           
SHEET    6   A 6 ALA A  60  CYS A  64 -1  N  THR A  62   O  ILE A 119           
SHEET    1   B 2 GLY A  68  HIS A  72  0                                        
SHEET    2   B 2 GLY A  75  SER A  79 -1  O  LEU A  77   N  THR A  70           
SHEET    1   C 4 LEU A 128  HIS A 131  0                                        
SHEET    2   C 4 HIS A 187  ILE A 189 -1  O  ILE A 189   N  LEU A 128           
SHEET    3   C 4 ALA A 152  PHE A 156 -1  N  GLN A 155   O  GLY A 188           
SHEET    4   C 4 LYS A 166  LEU A 170 -1  O  LEU A 168   N  PHE A 154           
LINK         O3'  DT B 501                 P   ME6 B 502     1555   1555  1.60  
LINK         O3' ME6 B 502                 P    DT B 503     1555   1555  1.61  
SITE     1 AC1 17 LEU A 118  ASN A 120  TYR A 122  LEU A 128                    
SITE     2 AC1 17 HIS A 131  ASP A 133  HIS A 187  ILE A 189                    
SITE     3 AC1 17 ARG A 204  ASN A 206  THR A 208  ARG A 210                    
SITE     4 AC1 17 FE2 A 300  HOH A 601  HOH A 625  HOH A 655                    
SITE     5 AC1 17 ME6 B 502                                                     
SITE     1 AC2  5 HIS A 131  ASP A 133  HIS A 187  AKG A 400                    
SITE     2 AC2  5 HOH A 601                                                     
CRYST1   41.374   41.374  117.213  90.00  90.00  90.00 P 43          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      0.024170  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.024170  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.008531        0.00000