HEADER    BILIVERDIN-IX BETA REDUCTASE            18-NOV-00   1HE3              
TITLE     HUMAN BILIVERDIN IX BETA REDUCTASE: NADP/MESOBILIVERDIN IV ALPHA      
TITLE    2 TERNARY COMPLEX                                                      
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BILIVERDIN IX BETA REDUCTASE;                              
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: FLAVIN REDUCTASE (EC 1.6.99.1), NADPH-DEPENDENT DIAPHORASE, 
COMPND   5 NADPH-FLAVIN REDUCTASE, BILIVERDIN REDUCTASE B, GREEN HEME BINDING   
COMPND   6 PROTEIN;                                                             
COMPND   7 EC: 1.3.1.24;                                                        
COMPND   8 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    BILIVERDIN-IX BETA REDUCTASE, FOETAL METABOLISM, HAEM DEGRADATION,    
KEYWDS   2 FLAVIN REDUCTASE, DIAPHORASE, GREEN HAEM BINDING PROTEIN,            
KEYWDS   3 METHAEMOGLOBIN REDUCTASE, ALPHA/BETA DINUCLEOTIDE BINDING FOLD       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    P.J.B.PEREIRA,S.MACEDO-RIBEIRO,A.PARRAGA,R.PEREZ-LUQUE,O.CUNNINGHAM,  
AUTHOR   2 K.DARCY,T.J.MANTLE,M.COLL                                            
REVDAT   4   13-DEC-23 1HE3    1       REMARK                                   
REVDAT   3   22-MAY-19 1HE3    1       REMARK ATOM                              
REVDAT   2   24-FEB-09 1HE3    1       VERSN                                    
REVDAT   1   28-FEB-01 1HE3    0                                                
JRNL        AUTH   P.J.B.PEREIRA,S.MACEDO-RIBEIRO,A.PARRAGA,R.PEREZ-LUQUE,      
JRNL        AUTH 2 O.CUNNINGHAM,K.DARCY,T.J.MANTLE,M.COLL                       
JRNL        TITL   STRUCTURE OF HUMAN BILIVERDIN IX BETA REDUCTASE, AN EARLY    
JRNL        TITL 2 FETAL BILIRUBIN IX PRODUCING ENZYME                          
JRNL        REF    NAT.STRUCT.BIOL.              V.   8   215 2001              
JRNL        REFN                   ISSN 1072-8368                               
JRNL        PMID   11224564                                                     
JRNL        DOI    10.1038/84948                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : SHELXL-97                                            
REMARK   3   AUTHORS     : G.M.SHELDRICK                                        
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.3                           
REMARK   3   CROSS-VALIDATION METHOD           : FREE R-VALUE                   
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM                         
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.138                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.132                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.181                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 2115                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 42030                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : 0.135                  
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : 0.128                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.175                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 1894                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 37627                  
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 1535                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 91                                            
REMARK   3   SOLVENT ATOMS      : 289                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 1860.3                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 0.00                    
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : 13                      
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 17592                   
REMARK   3   NUMBER OF RESTRAINTS                     : 21427                   
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.011                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.027                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.000                   
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.026                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.019                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.027                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.015                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.004                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.028                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : 0.080                   
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: MOEWS & KRETSINGER                                    
REMARK   3                                                                      
REMARK   3  STEREOCHEMISTRY TARGET VALUES : ENGH AND HUBER                      
REMARK   3   SPECIAL CASE: NULL                                                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 1HE3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 18-NOV-00.                  
REMARK 100 THE DEPOSITION ID IS D_1290005566.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 15-MAY-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 6.50                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : ID14-3                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9310                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : NULL                               
REMARK 200  DETECTOR MANUFACTURER          : NULL                               
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                              
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 42097                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 44.700                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.6                               
REMARK 200  DATA REDUNDANCY                : 3.800                              
REMARK 200  R MERGE                    (I) : 0.08000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 4.1000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.48                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 98.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.18300                            
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: AMORE                                                 
REMARK 200 STARTING MODEL: 1HDO                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.40                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.30                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 30% PEG 3350, 0.2 M AMMONIUM SULFATE,    
REMARK 280  0.1 M SODIUM CACODYLATE PH 6.5. NADP ADDED TO A FINAL               
REMARK 280  CONCENTRATION OF 2.5 MM, PH 6.50                                    
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       20.10000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       53.55000            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       24.70000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       53.55000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       20.10000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       24.70000            
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 300 REMARK: BIOLOGICAL_UNIT: MONOMER                                     
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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PQS                                                   
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     GLN A   206                                                      
REMARK 480                                                                      
REMARK 480 ZERO OCCUPANCY ATOM                                                  
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 480   M RES C SSEQI ATOMS                                                
REMARK 480     LYS A    4   CD   CE   NZ                                        
REMARK 480     THR A  119   CB   OG1  CG2                                       
REMARK 480     LYS A  120   CB   CG   CD   CE   NZ                              
REMARK 480     ARG A  124   CD   NE   CZ   NH1  NH2                             
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   NH1  ARG A   124     NE2  GLN A   204     4545     2.06            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
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,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
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   ATM2   ATM3                                     
REMARK 500    ARG A  39   CD  -  NE  -  CZ  ANGL. DEV. =  17.9 DEGREES          
REMARK 500    ARG A  39   NE  -  CZ  -  NH1 ANGL. DEV. =   5.4 DEGREES          
REMARK 500    ASP A  54   CB  -  CG  -  OD1 ANGL. DEV. =   5.7 DEGREES          
REMARK 500    ARG A  78   NE  -  CZ  -  NH2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500    ARG A 140   NE  -  CZ  -  NH1 ANGL. DEV. =  -3.8 DEGREES          
REMARK 500    ARG A 140   NE  -  CZ  -  NH2 ANGL. DEV. =   4.5 DEGREES          
REMARK 500    TYR A 146   CB  -  CG  -  CD1 ANGL. DEV. =   4.6 DEGREES          
REMARK 500    MET A 185   CA  -  CB  -  CG  ANGL. DEV. =  11.1 DEGREES          
REMARK 500    MET A 185   CA  -  CB  -  CG  ANGL. DEV. = -13.3 DEGREES          
REMARK 500    ARG A 187   CD  -  NE  -  CZ  ANGL. DEV. =  13.2 DEGREES          
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    ARG A  78     -116.80     47.86                                   
REMARK 500    THR A 110     -108.58   -117.91                                   
REMARK 500    PRO A 118       19.86    -66.99                                   
REMARK 500    PRO A 152     -153.25    -80.89                                   
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 A2009        DISTANCE =  7.56 ANGSTROMS                       
REMARK 615                                                                      
REMARK 615 ZERO OCCUPANCY ATOM                                                  
REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                  
REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                
REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;              
REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):         
REMARK 615   M RES C  SSEQI                                                     
REMARK 615     MBV A  1207                                                      
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE NAP A1206                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MBV A1207                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1HDO   RELATED DB: PDB                                   
REMARK 900 HUMAN BILIVERDIN IX BETA REDUCTASE: NADP COMPLEX                     
REMARK 900 RELATED ID: 1HE2   RELATED DB: PDB                                   
REMARK 900 HUMAN BILIVERDIN IX BETA REDUCTASE: NADP/BILIVERDIN IX ALPHA         
REMARK 900 TERNARY COMPLEX                                                      
REMARK 900 RELATED ID: 1HE4   RELATED DB: PDB                                   
REMARK 900 HUMAN BILIVERDIN IX BETA REDUCTASE: NADP/FMN TERNARY COMPLEX         
REMARK 900 RELATED ID: 1HE5   RELATED DB: PDB                                   
REMARK 900 HUMAN BILIVERDIN IX BETA REDUCTASE: NADP/LUMICHROME TERNARY COMPLEX  
REMARK 999                                                                      
REMARK 999 SEQUENCE                                                             
REMARK 999 THE PDB ENTRY CONTAINS AN EXTRA N-TERMINAL METHIONINE                
DBREF  1HE3 A    1     1  PDB    1HE3     1HE3             1      1             
DBREF  1HE3 A    2   205  UNP    P30043   FLRE_HUMAN       1    204             
SEQRES   1 A  206  MET ALA VAL LYS LYS ILE ALA ILE PHE GLY ALA THR GLY          
SEQRES   2 A  206  GLN THR GLY LEU THR THR LEU ALA GLN ALA VAL GLN ALA          
SEQRES   3 A  206  GLY TYR GLU VAL THR VAL LEU VAL ARG ASP SER SER ARG          
SEQRES   4 A  206  LEU PRO SER GLU GLY PRO ARG PRO ALA HIS VAL VAL VAL          
SEQRES   5 A  206  GLY ASP VAL LEU GLN ALA ALA ASP VAL ASP LYS THR VAL          
SEQRES   6 A  206  ALA GLY GLN ASP ALA VAL ILE VAL LEU LEU GLY THR ARG          
SEQRES   7 A  206  ASN ASP LEU SER PRO THR THR VAL MET SER GLU GLY ALA          
SEQRES   8 A  206  ARG ASN ILE VAL ALA ALA MET LYS ALA HIS GLY VAL ASP          
SEQRES   9 A  206  LYS VAL VAL ALA CYS THR SER ALA PHE LEU LEU TRP ASP          
SEQRES  10 A  206  PRO THR LYS VAL PRO PRO ARG LEU GLN ALA VAL THR ASP          
SEQRES  11 A  206  ASP HIS ILE ARG MET HIS LYS VAL LEU ARG GLU SER GLY          
SEQRES  12 A  206  LEU LYS TYR VAL ALA VAL MET PRO PRO HIS ILE GLY ASP          
SEQRES  13 A  206  GLN PRO LEU THR GLY ALA TYR THR VAL THR LEU ASP GLY          
SEQRES  14 A  206  ARG GLY PRO SER ARG VAL ILE SER LYS HIS ASP LEU GLY          
SEQRES  15 A  206  HIS PHE MET LEU ARG CYS LEU THR THR ASP GLU TYR ASP          
SEQRES  16 A  206  GLY HIS SER THR TYR PRO SER HIS GLN TYR GLN                  
HET    NAP  A1206      48                                                       
HET    MBV  A1207      43                                                       
HETNAM     NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE                 
HETNAM     MBV MESOBILIVERDIN IV ALPHA                                          
HETSYN     NAP 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE                       
FORMUL   2  NAP    C21 H28 N7 O17 P3                                            
FORMUL   3  MBV    C33 H38 N4 O6                                                
FORMUL   4  HOH   *289(H2 O)                                                    
HELIX    1   1 GLY A   13  GLY A   27  1                                  15    
HELIX    2   2 ASP A   36  LEU A   40  5                                   5    
HELIX    3   3 GLN A   57  ALA A   66  1                                  10    
HELIX    4   4 THR A   85  GLY A  102  1                                  18    
HELIX    5   5 SER A  111  LEU A  115  5                                   5    
HELIX    6   6 PRO A  122  ARG A  124  5                                   3    
HELIX    7   7 LEU A  125  SER A  142  1                                  18    
HELIX    8   8 LYS A  178  CYS A  188  1                                  11    
SHEET    1  AA 8 HIS A  49  VAL A  52  0                                        
SHEET    2  AA 8 GLU A  29  VAL A  34  1  O  VAL A  30   N  HIS A  49           
SHEET    3  AA 8 LYS A   5  PHE A   9  1  O  ILE A   6   N  THR A  31           
SHEET    4  AA 8 ALA A  70  VAL A  73  1  O  ALA A  70   N  ALA A   7           
SHEET    5  AA 8 LYS A 105  CYS A 109  1  O  LYS A 105   N  VAL A  71           
SHEET    6  AA 8 LYS A 145  VAL A 149  1  O  LYS A 145   N  VAL A 106           
SHEET    7  AA 8 SER A 198  SER A 202  1  N  THR A 199   O  ALA A 148           
SHEET    8  AA 8 THR A 164  THR A 166 -1  O  THR A 164   N  SER A 202           
SHEET    1  AB 2 HIS A 153  GLY A 155  0                                        
SHEET    2  AB 2 VAL A 175  SER A 177  1  O  ILE A 176   N  GLY A 155           
SITE     1 AC1 35 GLY A  10  THR A  12  GLY A  13  GLN A  14                    
SITE     2 AC1 35 THR A  15  ARG A  35  ARG A  39  ASP A  54                    
SITE     3 AC1 35 VAL A  55  LEU A  74  LEU A  75  GLY A  76                    
SITE     4 AC1 35 ARG A  78  MET A  87  CYS A 109  THR A 110                    
SITE     5 AC1 35 SER A 111  HIS A 132  PRO A 151  PRO A 152                    
SITE     6 AC1 35 HIS A 153  ILE A 154  MBV A1207  HOH A2028                    
SITE     7 AC1 35 HOH A2071  HOH A2280  HOH A2281  HOH A2282                    
SITE     8 AC1 35 HOH A2283  HOH A2284  HOH A2285  HOH A2286                    
SITE     9 AC1 35 HOH A2287  HOH A2288  HOH A2289                               
SITE     1 AC2 14 THR A  77  ARG A  78  ASP A  80  LEU A  81                    
SITE     2 AC2 14 PHE A 113  TRP A 116  LEU A 125  PRO A 151                    
SITE     3 AC2 14 PRO A 152  HIS A 153  ARG A 174  NAP A1206                    
SITE     4 AC2 14 HOH A2285  HOH A2289                                          
CRYST1   40.200   49.400  107.100  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      0.024876  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.020243  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009337        0.00000