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Database: PDB
Entry: 2XKR
LinkDB: 2XKR
Original site: 2XKR 
HEADER    OXIDOREDUCTASE                          12-JUL-10   2XKR              
TITLE     CRYSTAL STRUCTURE OF MYCOBACTERIUM TUBERCULOSIS CYP142: A NOVEL       
TITLE    2 CHOLESTEROL OXIDASE                                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PUTATIVE CYTOCHROME P450 142;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: CYP142;                                                     
COMPND   5 EC: 1.14.-.-;                                                        
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 OTHER_DETAILS: POLYETHYLENE GLYCOL BOUND TO HEME IRON                
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MYCOBACTERIUM TUBERCULOSIS;                     
SOURCE   3 ORGANISM_TAXID: 83332;                                               
SOURCE   4 STRAIN: H37RV;                                                       
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_VARIANT: ROSETTA;                                  
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PET15B;                                   
SOURCE  10 OTHER_DETAILS: INSTITUT PASTEUR                                      
KEYWDS    OXIDOREDUCTASE                                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.DRISCOLL,K.J.MCLEAN,C.W.LEVY,P.LAFITE,N.MAST,I.A.PIKULEVA,          
AUTHOR   2 S.E.J.RIGBY,D.LEYS,A.W.MUNRO                                         
REVDAT   5   20-DEC-23 2XKR    1       REMARK                                   
REVDAT   4   10-APR-19 2XKR    1       SOURCE REMARK                            
REVDAT   3   08-DEC-10 2XKR    1       JRNL                                     
REVDAT   2   13-OCT-10 2XKR    1       JRNL                                     
REVDAT   1   29-SEP-10 2XKR    0                                                
JRNL        AUTH   M.D.DRISCOLL,K.J.MCLEAN,C.W.LEVY,N.MAST,I.A.PIKULEVA,        
JRNL        AUTH 2 P.LAFITE,S.E.J.RIGBY,D.LEYS,A.W.MUNRO                        
JRNL        TITL   STRUCTURAL AND BIOCHEMICAL CHARACTERIZATION OF MYCOBACTERIUM 
JRNL        TITL 2 TUBERCULOSIS CYP142: EVIDENCE FOR MULTIPLE CHOLESTEROL       
JRNL        TITL 3 27-HYDROXYLASE ACTIVITIES IN A HUMAN PATHOGEN.               
JRNL        REF    J.BIOL.CHEM.                  V. 285 38270 2010              
JRNL        REFN                   ISSN 0021-9258                               
JRNL        PMID   20889498                                                     
JRNL        DOI    10.1074/JBC.M110.164293                                      
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.60 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX (PHENIX.REFINE)                               
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.60                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 40.16                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 2.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.7                           
REMARK   3   NUMBER OF REFLECTIONS             : 62544                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.169                           
REMARK   3   R VALUE            (WORKING SET) : 0.168                           
REMARK   3   FREE R VALUE                     : 0.196                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 3169                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 40.1764 -  4.5510    0.99     2780   136  0.1724 0.1751        
REMARK   3     2  4.5510 -  3.6130    1.00     2642   158  0.1419 0.1629        
REMARK   3     3  3.6130 -  3.1565    1.00     2622   150  0.1666 0.1917        
REMARK   3     4  3.1565 -  2.8680    1.00     2609   150  0.1817 0.2337        
REMARK   3     5  2.8680 -  2.6625    1.00     2622   126  0.1737 0.1887        
REMARK   3     6  2.6625 -  2.5055    1.00     2586   135  0.1686 0.2069        
REMARK   3     7  2.5055 -  2.3800    1.00     2611   128  0.1638 0.1879        
REMARK   3     8  2.3800 -  2.2764    1.00     2599   133  0.1600 0.1862        
REMARK   3     9  2.2764 -  2.1888    1.00     2552   150  0.1546 0.1901        
REMARK   3    10  2.1888 -  2.1133    1.00     2604   122  0.1533 0.1629        
REMARK   3    11  2.1133 -  2.0472    1.00     2524   141  0.1571 0.1946        
REMARK   3    12  2.0472 -  1.9887    1.00     2581   139  0.1629 0.1893        
REMARK   3    13  1.9887 -  1.9363    1.00     2594   139  0.1620 0.1940        
REMARK   3    14  1.9363 -  1.8891    1.00     2557   151  0.1676 0.1995        
REMARK   3    15  1.8891 -  1.8462    1.00     2544   127  0.1634 0.2123        
REMARK   3    16  1.8462 -  1.8069    1.00     2580   125  0.1746 0.2144        
REMARK   3    17  1.8069 -  1.7707    1.00     2553   148  0.1715 0.2285        
REMARK   3    18  1.7707 -  1.7373    1.00     2552   130  0.1772 0.1827        
REMARK   3    19  1.7373 -  1.7063    1.00     2570   135  0.1804 0.2026        
REMARK   3    20  1.7063 -  1.6774    1.00     2524   139  0.1817 0.2301        
REMARK   3    21  1.6774 -  1.6503    1.00     2570   142  0.1853 0.2326        
REMARK   3    22  1.6503 -  1.6249    1.00     2536   143  0.1945 0.2266        
REMARK   3    23  1.6249 -  1.6010    0.97     2463   122  0.2067 0.2503        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : 0.36                                          
REMARK   3   B_SOL              : 50.64                                         
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.180            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 17.680           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.47                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 19.95                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.27080                                              
REMARK   3    B22 (A**2) : 1.92050                                              
REMARK   3    B33 (A**2) : -2.19130                                             
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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.005           3180                                  
REMARK   3   ANGLE     :  1.032           4334                                  
REMARK   3   CHIRALITY :  0.067            482                                  
REMARK   3   PLANARITY :  0.005            574                                  
REMARK   3   DIHEDRAL  : 12.630           1177                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 2XKR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 12-JUL-10.                  
REMARK 100 THE DEPOSITION ID IS D_1290044583.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 11-MAR-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-4                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9765                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC CCD                           
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 62547                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.600                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 40.200                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY                : 6.900                              
REMARK 200  R MERGE                    (I) : 0.06000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 22.7000                            
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) : 1.70                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.0                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.30                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.46000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 4.100                              
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 2WM4                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.35                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.64                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 10% PEG 550MME WITH 100 MM POTASSIUM     
REMARK 280  THIOCYANATE AND 0.1 M SODIUM ACETATE AT A PH RANGE OF 5.0-6.0.,     
REMARK 280  PH 7.5                                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       27.65500            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       64.73500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       32.73000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       64.73500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       27.65500            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       32.73000            
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
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 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 465     THR A     2                                                      
REMARK 465     GLU A     3                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     ARG A  96    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     LYS A  97    CG   CD   CE   NZ                                   
REMARK 470     HIS A 166    CG   ND1  CD2  CE1  NE2                             
REMARK 470     GLN A 169    CG   CD   OE1  NE2                                  
REMARK 470     GLU A 170    CG   CD   OE1  OE2                                  
REMARK 470     ASP A 196    CG   OD1  OD2                                       
REMARK 470     ASP A 369    CG   OD1  OD2                                       
REMARK 470     ARG A 376    CG   CD   NE   CZ   NH1  NH2                        
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  31       79.66   -157.50                                   
REMARK 500    LEU A 129      -54.10   -128.09                                   
REMARK 500    THR A 198     -152.91   -116.83                                   
REMARK 500    ASP A 232      -79.17    -89.46                                   
REMARK 500    ALA A 275       65.87     31.37                                   
REMARK 500    PHE A 380      -68.38   -124.81                                   
REMARK 500    MET A 387       82.39   -153.51                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2014        DISTANCE =  6.42 ANGSTROMS                       
REMARK 525    HOH A2028        DISTANCE =  5.99 ANGSTROMS                       
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                             HEM A1400  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 340   SG                                                     
REMARK 620 2 HEM A1400   NA   98.4                                              
REMARK 620 3 HEM A1400   NB   88.5  89.3                                        
REMARK 620 4 HEM A1400   NC   86.8 174.7  89.8                                  
REMARK 620 5 HEM A1400   ND   96.5  90.5 175.0  90.0                            
REMARK 620 6 PG4 A1399   O3  174.2  84.8  86.6  89.9  88.4                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PG4 A 1399                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEM A 1400                
DBREF  2XKR A    1   398  UNP    O53563   CP142_MYCTU      1    398             
SEQRES   1 A  398  MET THR GLU ALA PRO ASP VAL ASP LEU ALA ASP GLY ASN          
SEQRES   2 A  398  PHE TYR ALA SER ARG GLU ALA ARG ALA ALA TYR ARG TRP          
SEQRES   3 A  398  MET ARG ALA ASN GLN PRO VAL PHE ARG ASP ARG ASN GLY          
SEQRES   4 A  398  LEU ALA ALA ALA SER THR TYR GLN ALA VAL ILE ASP ALA          
SEQRES   5 A  398  GLU ARG GLN PRO GLU LEU PHE SER ASN ALA GLY GLY ILE          
SEQRES   6 A  398  ARG PRO ASP GLN PRO ALA LEU PRO MET MET ILE ASP MET          
SEQRES   7 A  398  ASP ASP PRO ALA HIS LEU LEU ARG ARG LYS LEU VAL ASN          
SEQRES   8 A  398  ALA GLY PHE THR ARG LYS ARG VAL LYS ASP LYS GLU ALA          
SEQRES   9 A  398  SER ILE ALA ALA LEU CYS ASP THR LEU ILE ASP ALA VAL          
SEQRES  10 A  398  CYS GLU ARG GLY GLU CYS ASP PHE VAL ARG ASP LEU ALA          
SEQRES  11 A  398  ALA PRO LEU PRO MET ALA VAL ILE GLY ASP MET LEU GLY          
SEQRES  12 A  398  VAL ARG PRO GLU GLN ARG ASP MET PHE LEU ARG TRP SER          
SEQRES  13 A  398  ASP ASP LEU VAL THR PHE LEU SER SER HIS VAL SER GLN          
SEQRES  14 A  398  GLU ASP PHE GLN ILE THR MET ASP ALA PHE ALA ALA TYR          
SEQRES  15 A  398  ASN ASP PHE THR ARG ALA THR ILE ALA ALA ARG ARG ALA          
SEQRES  16 A  398  ASP PRO THR ASP ASP LEU VAL SER VAL LEU VAL SER SER          
SEQRES  17 A  398  GLU VAL ASP GLY GLU ARG LEU SER ASP ASP GLU LEU VAL          
SEQRES  18 A  398  MET GLU THR LEU LEU ILE LEU ILE GLY GLY ASP GLU THR          
SEQRES  19 A  398  THR ARG HIS THR LEU SER GLY GLY THR GLU GLN LEU LEU          
SEQRES  20 A  398  ARG ASN ARG ASP GLN TRP ASP LEU LEU GLN ARG ASP PRO          
SEQRES  21 A  398  SER LEU LEU PRO GLY ALA ILE GLU GLU MET LEU ARG TRP          
SEQRES  22 A  398  THR ALA PRO VAL LYS ASN MET CYS ARG VAL LEU THR ALA          
SEQRES  23 A  398  ASP THR GLU PHE HIS GLY THR ALA LEU CYS ALA GLY GLU          
SEQRES  24 A  398  LYS MET MET LEU LEU PHE GLU SER ALA ASN PHE ASP GLU          
SEQRES  25 A  398  ALA VAL PHE CYS GLU PRO GLU LYS PHE ASP VAL GLN ARG          
SEQRES  26 A  398  ASN PRO ASN SER HIS LEU ALA PHE GLY PHE GLY THR HIS          
SEQRES  27 A  398  PHE CYS LEU GLY ASN GLN LEU ALA ARG LEU GLU LEU SER          
SEQRES  28 A  398  LEU MET THR GLU ARG VAL LEU ARG ARG LEU PRO ASP LEU          
SEQRES  29 A  398  ARG LEU VAL ALA ASP ASP SER VAL LEU PRO LEU ARG PRO          
SEQRES  30 A  398  ALA ASN PHE VAL SER GLY LEU GLU SER MET PRO VAL VAL          
SEQRES  31 A  398  PHE THR PRO SER PRO PRO LEU GLY                              
HET    HEM  A1400      43                                                       
HET    PG4  A1399       7                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     PG4 TETRAETHYLENE GLYCOL                                             
HETSYN     HEM HEME                                                             
FORMUL   2  HEM    C34 H32 FE N4 O4                                             
FORMUL   3  PG4    C8 H18 O5                                                    
FORMUL   4  HOH   *510(H2 O)                                                    
HELIX    1   1 ASP A   11  ALA A   16  1                                   6    
HELIX    2   2 GLU A   19  GLN A   31  1                                  13    
HELIX    3   3 THR A   45  ARG A   54  1                                  10    
HELIX    4   4 MET A   74  MET A   78  5                                   5    
HELIX    5   5 PRO A   81  ASN A   91  1                                  11    
HELIX    6   6 ALA A   92  PHE A   94  5                                   3    
HELIX    7   7 THR A   95  ASP A  101  1                                   7    
HELIX    8   8 LYS A  102  ALA A  116  1                                  15    
HELIX    9   9 PHE A  125  LEU A  129  1                                   5    
HELIX   10  10 ALA A  131  GLY A  143  1                                  13    
HELIX   11  11 ARG A  145  GLU A  147  5                                   3    
HELIX   12  12 GLN A  148  SER A  164  1                                  17    
HELIX   13  13 SER A  168  ASP A  196  1                                  29    
HELIX   14  14 ASP A  200  SER A  208  1                                   9    
HELIX   15  15 SER A  216  ASP A  232  1                                  17    
HELIX   16  16 ASP A  232  ASN A  249  1                                  18    
HELIX   17  17 ASN A  249  ASP A  259  1                                  11    
HELIX   18  18 LEU A  262  ALA A  275  1                                  14    
HELIX   19  19 PHE A  305  PHE A  310  1                                   6    
HELIX   20  20 GLY A  342  LEU A  361  1                                  20    
SHEET    1  AA 5 VAL A  33  ARG A  35  0                                        
SHEET    2  AA 5 ALA A  41  ALA A  43 -1  O  ALA A  42   N  PHE A  34           
SHEET    3  AA 5 LYS A 300  LEU A 304  1  O  LYS A 300   N  ALA A  41           
SHEET    4  AA 5 ASN A 279  LEU A 284 -1  O  MET A 280   N  LEU A 303           
SHEET    5  AA 5 PHE A  59  SER A  60 -1  O  SER A  60   N  VAL A 283           
SHEET    1  AB 3 GLU A 122  ASP A 124  0                                        
SHEET    2  AB 3 PRO A 388  VAL A 390 -1  O  VAL A 389   N  CYS A 123           
SHEET    3  AB 3 ARG A 365  LEU A 366 -1  O  ARG A 365   N  VAL A 390           
SHEET    1  AC 2 THR A 288  PHE A 290  0                                        
SHEET    2  AC 2 THR A 293  LEU A 295 -1  O  THR A 293   N  PHE A 290           
LINK         SG  CYS A 340                FE   HEM A1400     1555   1555  2.33  
LINK         O3  PG4 A1399                FE   HEM A1400     1555   1555  2.21  
CISPEP   1 ASP A   80    PRO A   81          0         7.35                     
CISPEP   2 ASN A  326    PRO A  327          0        -0.31                     
SITE     1 AC1  4 LEU A 163  LEU A 226  GLY A 230  HEM A1400                    
SITE     1 AC2 24 GLU A  53  MET A  75  ILE A  76  HIS A  83                    
SITE     2 AC2 24 ARG A  87  PHE A  94  ILE A 227  GLY A 230                    
SITE     3 AC2 24 GLY A 231  THR A 234  THR A 235  THR A 238                    
SITE     4 AC2 24 VAL A 277  ARG A 282  ALA A 332  PHE A 333                    
SITE     5 AC2 24 GLY A 334  PHE A 335  THR A 337  HIS A 338                    
SITE     6 AC2 24 CYS A 340  GLY A 342  PG4 A1399  HOH A2510                    
CRYST1   55.310   65.460  129.470  90.00  90.00  90.00 P 21 21 21    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      0.018080  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.015277  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007724        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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