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Database: PDB
Entry: 5X7E
LinkDB: 5X7E
Original site: 5X7E 
HEADER    OXIDOREDUCTASE                          25-FEB-17   5X7E              
TITLE     CRYSTAL STRUCTURE OF VITAMIN D HYDROXYLASE CYTOCHROME P450 105A1 (R84A
TITLE    2 MUTANT) IN COMPLEX WITH 1,25-DIHYDROXYVITAMIN D2                     
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: VITAMIN D3 DIHYDROXYLASE;                                  
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: CYP105A1,CYTOCHROME P450-CVA1,CYTOCHROME P450-SU1,VITAMIN D3
COMPND   5 HYDROXYLASE,VD3 HYDROXYLASE;                                         
COMPND   6 EC: 1.14.15.-;                                                       
COMPND   7 ENGINEERED: YES;                                                     
COMPND   8 MUTATION: YES                                                        
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: STREPTOMYCES GRISEOLUS;                         
SOURCE   3 ORGANISM_TAXID: 1909;                                                
SOURCE   4 ATCC: 11796;                                                         
SOURCE   5 GENE: CYP105A1, SUAC;                                                
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: JM109;                                     
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PKK223-3                                  
KEYWDS    METAL-BINDING, MONOOXYGENASE, OXIDOREDUCTASE                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    K.HAYASHI,K.YASUDA,Y.SHIRO,H.SUGIMOTO,T.SAKAKI                        
REVDAT   2   22-NOV-23 5X7E    1       COMPND HETNAM                            
REVDAT   1   10-MAY-17 5X7E    0                                                
JRNL        AUTH   K.YASUDA,Y.YOGO,H.SUGIMOTO,H.MANO,T.TAKITA,M.OHTA,           
JRNL        AUTH 2 M.KAMAKURA,S.IKUSHIRO,K.YASUKAWA,Y.SHIRO,T.SAKAKI            
JRNL        TITL   PRODUCTION OF AN ACTIVE FORM OF VITAMIN D2 BY GENETICALLY    
JRNL        TITL 2 ENGINEERED CYP105A1                                          
JRNL        REF    BIOCHEM. BIOPHYS. RES.        V. 486   336 2017              
JRNL        REF  2 COMMUN.                                                      
JRNL        REFN                   ESSN 1090-2104                               
JRNL        PMID   28302483                                                     
JRNL        DOI    10.1016/J.BBRC.2017.03.040                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.90 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.7.0029                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : NULL                                          
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 17.53                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 29341                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.188                           
REMARK   3   R VALUE            (WORKING SET) : 0.186                           
REMARK   3   FREE R VALUE                     : 0.232                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.100                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1563                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.90                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.95                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 1877                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 87.30                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2060                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 103                          
REMARK   3   BIN FREE R VALUE                    : 0.2740                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 3090                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 74                                      
REMARK   3   SOLVENT ATOMS            : 294                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 22.41                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.78000                                              
REMARK   3    B22 (A**2) : -0.26000                                             
REMARK   3    B33 (A**2) : -0.52000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.172         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.155         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.103         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.426         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.950                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.915                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3246 ; 0.013 ; 0.019       
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  4447 ; 1.679 ; 2.025       
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   405 ; 5.573 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   144 ;37.357 ;23.472       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   504 ;13.543 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    30 ;17.023 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   511 ; 0.114 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2512 ; 0.009 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.20                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN USED IF PRESENT IN    
REMARK   4                                                                      
REMARK   4 5X7E COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 28-FEB-17.                  
REMARK 100 THE DEPOSITION ID IS D_1300003043.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 10-OCT-08                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.8                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SPRING-8                           
REMARK 200  BEAMLINE                       : BL26B2                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.97                               
REMARK 200  MONOCHROMATOR                  : SI(111)                            
REMARK 200  OPTICS                         : MIRRORS                            
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : RIGAKU JUPITER 210                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : HKL-2000                           
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 30958                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.900                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 20.000                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.0                               
REMARK 200  DATA REDUNDANCY                : 7.200                              
REMARK 200  R MERGE                    (I) : 0.06200                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.0000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.90                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.97                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 89.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.30000                            
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: MOLREP                                                
REMARK 200 STARTING MODEL: 2ZBZ                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 43.27                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.17                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 26% PEGMME 20000, 0.2 M NACL, 0.1 M      
REMARK 280  BISTRIS, PH 6.8, VAPOR DIFFUSION, TEMPERATURE 283K                  
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       26.20450            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       69.71800            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       26.68000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       69.71800            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       26.20450            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       26.68000            
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 TOTAL BURIED SURFACE AREA: 1250 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 16620 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -24.0 KCAL/MOL                        
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     ASP A     3                                                      
REMARK 465     HIS A   408                                                      
REMARK 465     HIS A   409                                                      
REMARK 465     HIS A   410                                                      
REMARK 465     HIS A   411                                                      
REMARK 465     HIS A   412                                                      
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   NH1  ARG A   231     O    HOH A   601              2.19            
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    PHE A 150      -56.07   -152.79                                   
REMARK 500    ASP A 222      -80.37   -107.56                                   
REMARK 500    ALA A 289       64.75     31.52                                   
REMARK 500    HIS A 344       12.47     80.11                                   
REMARK 500    CYS A 355      118.20    -38.99                                   
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 A 894        DISTANCE =  5.95 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 A 501  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 CYS A 355   SG                                                     
REMARK 620 2 HEM A 501   NA  102.5                                              
REMARK 620 3 HEM A 501   NB   89.8  88.4                                        
REMARK 620 4 HEM A 501   NC   84.7 172.7  90.7                                  
REMARK 620 5 HEM A 501   ND   98.2  89.5 172.0  90.3                            
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 HEM A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue 7ZU A 502                 
DBREF  5X7E A    1   406  UNP    P18326   CPXE_STRGO       1    406             
SEQADV 5X7E ALA A   84  UNP  P18326    ARG    84 ENGINEERED MUTATION            
SEQADV 5X7E GLN A  308  UNP  P18326    HIS   308 VARIANT                        
SEQADV 5X7E HIS A  407  UNP  P18326              EXPRESSION TAG                 
SEQADV 5X7E HIS A  408  UNP  P18326              EXPRESSION TAG                 
SEQADV 5X7E HIS A  409  UNP  P18326              EXPRESSION TAG                 
SEQADV 5X7E HIS A  410  UNP  P18326              EXPRESSION TAG                 
SEQADV 5X7E HIS A  411  UNP  P18326              EXPRESSION TAG                 
SEQADV 5X7E HIS A  412  UNP  P18326              EXPRESSION TAG                 
SEQRES   1 A  412  MET THR ASP THR ALA THR THR PRO GLN THR THR ASP ALA          
SEQRES   2 A  412  PRO ALA PHE PRO SER ASN ARG SER CYS PRO TYR GLN LEU          
SEQRES   3 A  412  PRO ASP GLY TYR ALA GLN LEU ARG ASP THR PRO GLY PRO          
SEQRES   4 A  412  LEU HIS ARG VAL THR LEU TYR ASP GLY ARG GLN ALA TRP          
SEQRES   5 A  412  VAL VAL THR LYS HIS GLU ALA ALA ARG LYS LEU LEU GLY          
SEQRES   6 A  412  ASP PRO ARG LEU SER SER ASN ARG THR ASP ASP ASN PHE          
SEQRES   7 A  412  PRO ALA THR SER PRO ALA PHE GLU ALA VAL ARG GLU SER          
SEQRES   8 A  412  PRO GLN ALA PHE ILE GLY LEU ASP PRO PRO GLU HIS GLY          
SEQRES   9 A  412  THR ARG ARG ARG MET THR ILE SER GLU PHE THR VAL LYS          
SEQRES  10 A  412  ARG ILE LYS GLY MET ARG PRO GLU VAL GLU GLU VAL VAL          
SEQRES  11 A  412  HIS GLY PHE LEU ASP GLU MET LEU ALA ALA GLY PRO THR          
SEQRES  12 A  412  ALA ASP LEU VAL SER GLN PHE ALA LEU PRO VAL PRO SER          
SEQRES  13 A  412  MET VAL ILE CYS ARG LEU LEU GLY VAL PRO TYR ALA ASP          
SEQRES  14 A  412  HIS GLU PHE PHE GLN ASP ALA SER LYS ARG LEU VAL GLN          
SEQRES  15 A  412  SER THR ASP ALA GLN SER ALA LEU THR ALA ARG ASN ASP          
SEQRES  16 A  412  LEU ALA GLY TYR LEU ASP GLY LEU ILE THR GLN PHE GLN          
SEQRES  17 A  412  THR GLU PRO GLY ALA GLY LEU VAL GLY ALA LEU VAL ALA          
SEQRES  18 A  412  ASP GLN LEU ALA ASN GLY GLU ILE ASP ARG GLU GLU LEU          
SEQRES  19 A  412  ILE SER THR ALA MET LEU LEU LEU ILE ALA GLY HIS GLU          
SEQRES  20 A  412  THR THR ALA SER MET THR SER LEU SER VAL ILE THR LEU          
SEQRES  21 A  412  LEU ASP HIS PRO GLU GLN TYR ALA ALA LEU ARG ALA ASP          
SEQRES  22 A  412  ARG SER LEU VAL PRO GLY ALA VAL GLU GLU LEU LEU ARG          
SEQRES  23 A  412  TYR LEU ALA ILE ALA ASP ILE ALA GLY GLY ARG VAL ALA          
SEQRES  24 A  412  THR ALA ASP ILE GLU VAL GLU GLY GLN LEU ILE ARG ALA          
SEQRES  25 A  412  GLY GLU GLY VAL ILE VAL VAL ASN SER ILE ALA ASN ARG          
SEQRES  26 A  412  ASP GLY THR VAL TYR GLU ASP PRO ASP ALA LEU ASP ILE          
SEQRES  27 A  412  HIS ARG SER ALA ARG HIS HIS LEU ALA PHE GLY PHE GLY          
SEQRES  28 A  412  VAL HIS GLN CYS LEU GLY GLN ASN LEU ALA ARG LEU GLU          
SEQRES  29 A  412  LEU GLU VAL ILE LEU ASN ALA LEU MET ASP ARG VAL PRO          
SEQRES  30 A  412  THR LEU ARG LEU ALA VAL PRO VAL GLU GLN LEU VAL LEU          
SEQRES  31 A  412  ARG PRO GLY THR THR ILE GLN GLY VAL ASN GLU LEU PRO          
SEQRES  32 A  412  VAL THR TRP HIS HIS HIS HIS HIS HIS                          
HET    HEM  A 501      43                                                       
HET    7ZU  A 502      31                                                       
HETNAM     HEM PROTOPORPHYRIN IX CONTAINING FE                                  
HETNAM     7ZU (1R,3S,5Z)-5-[(2E)-2-[(1R,3AS,7AR)-1-[(E,2R,5S)-5,6-             
HETNAM   2 7ZU  DIMETHYL-6-OXIDANYL-HEPT-3-EN-2-YL]-7A-METHYL-2,3,3A,           
HETNAM   3 7ZU  5,6,7-HEXAHYDR O-1H-INDEN-4-YLIDENE]ETHYLIDENE]-4-              
HETNAM   4 7ZU  METHYLIDENE-CYCLOHEXANE-1,3-DIOL                                
HETSYN     HEM HEME                                                             
HETSYN     7ZU 1,25-DIHYDROXYVITAMIN D2                                         
FORMUL   2  HEM    C34 H32 FE N4 O4                                             
FORMUL   3  7ZU    C28 H44 O3                                                   
FORMUL   4  HOH   *294(H2 O)                                                    
HELIX    1 AA1 PRO A   27  THR A   36  1                                  10    
HELIX    2 AA2 LYS A   56  GLY A   65  1                                  10    
HELIX    3 AA3 SER A   82  ALA A   84  5                                   3    
HELIX    4 AA4 PHE A   85  SER A   91  1                                   7    
HELIX    5 AA5 ALA A   94  LEU A   98  5                                   5    
HELIX    6 AA6 PRO A  101  ARG A  108  1                                   8    
HELIX    7 AA7 MET A  109  PHE A  114  5                                   6    
HELIX    8 AA8 THR A  115  GLY A  141  1                                  27    
HELIX    9 AA9 LEU A  146  PHE A  150  1                                   5    
HELIX   10 AB1 LEU A  152  GLY A  164  1                                  13    
HELIX   11 AB2 PRO A  166  ALA A  168  5                                   3    
HELIX   12 AB3 ASP A  169  SER A  183  1                                  15    
HELIX   13 AB4 ASP A  185  GLU A  210  1                                  26    
HELIX   14 AB5 ALA A  213  ASP A  222  1                                  10    
HELIX   15 AB6 ASP A  230  ASP A  262  1                                  33    
HELIX   16 AB7 HIS A  263  ASP A  273  1                                  11    
HELIX   17 AB8 LEU A  276  ALA A  289  1                                  14    
HELIX   18 AB9 VAL A  319  ASN A  324  1                                   6    
HELIX   19 AC1 GLY A  357  VAL A  376  1                                  20    
HELIX   20 AC2 PRO A  384  LEU A  388  5                                   5    
SHEET    1 AA1 5 LEU A  40  THR A  44  0                                        
SHEET    2 AA1 5 GLN A  50  VAL A  54 -1  O  VAL A  53   N  HIS A  41           
SHEET    3 AA1 5 GLY A 315  VAL A 318  1  O  ILE A 317   N  TRP A  52           
SHEET    4 AA1 5 GLY A 296  ALA A 299 -1  N  ARG A 297   O  VAL A 316           
SHEET    5 AA1 5 LEU A  69  SER A  70 -1  N  SER A  70   O  VAL A 298           
SHEET    1 AA2 3 ALA A 144  ASP A 145  0                                        
SHEET    2 AA2 3 PRO A 403  THR A 405 -1  O  VAL A 404   N  ALA A 144           
SHEET    3 AA2 3 ARG A 380  LEU A 381 -1  N  ARG A 380   O  THR A 405           
SHEET    1 AA3 2 ILE A 303  VAL A 305  0                                        
SHEET    2 AA3 2 GLN A 308  ILE A 310 -1  O  GLN A 308   N  VAL A 305           
LINK         SG  CYS A 355                FE   HEM A 501     1555   1555  2.36  
CISPEP   1 PHE A   16    PRO A   17          0        -3.96                     
CISPEP   2 PRO A  100    PRO A  101          0         4.48                     
CISPEP   3 PRO A  142    THR A  143          0        -0.49                     
SITE     1 AC1 21 PHE A  95  ILE A  96  HIS A 103  ARG A 107                    
SITE     2 AC1 21 LEU A 241  ALA A 244  THR A 248  THR A 249                    
SITE     3 AC1 21 ALA A 294  ARG A 297  ALA A 347  PHE A 348                    
SITE     4 AC1 21 GLY A 349  VAL A 352  HIS A 353  CYS A 355                    
SITE     5 AC1 21 GLY A 357  ALA A 361  HOH A 647  HOH A 666                    
SITE     6 AC1 21 HOH A 693                                                     
SITE     1 AC2 10 PRO A  79  THR A  81  VAL A  88  PRO A  92                    
SITE     2 AC2 10 ARG A 193  ILE A 243  ILE A 293  GLY A 296                    
SITE     3 AC2 10 HOH A 649  HOH A 770                                          
CRYST1   52.409   53.360  139.436  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      0.019081  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.018741  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007172        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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