HEADER    ELECTRON TRANSPORT                      03-MAR-00   1C7M              
TITLE     SOLUTION STRUCTURE OF THE FUNCTIONAL DOMAIN OF PARACOCCUS             
TITLE    2 DENITRIFICANS CYTOCHROME C552 IN THE REDUCED STATE                   
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PROTEIN (CYTOCHROME C552);                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: SOLUBLE FUNCTIONAL DOMAIN;                                 
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 OTHER_DETAILS: COVALENT THIOETHER LINKAGES FROM HEME COFACTOR TO BOTH
COMPND   7 CYS14 AND CYS17                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: PARACOCCUS DENITRIFICANS;                       
SOURCE   3 ORGANISM_TAXID: 266;                                                 
SOURCE   4 STRAIN: PD1235;                                                      
SOURCE   5 CELLULAR_LOCATION: PERIPLASM;                                        
SOURCE   6 GENE: CYCM;                                                          
SOURCE   7 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   8 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   9 EXPRESSION_SYSTEM_STRAIN: BL21 (DE3);                                
SOURCE  10 EXPRESSION_SYSTEM_CELLULAR_LOCATION: PERIPLASM;                      
SOURCE  11 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  12 EXPRESSION_SYSTEM_PLASMID: PET22B+;                                  
SOURCE  13 OTHER_DETAILS: HETEROLOGOUS EXPRESSION                               
KEYWDS    ELECTRON TRANSPORT, CYTOCHROME C552, HEME, REDOX STATES, ISOTOPE      
KEYWDS   2 ENRICHMENT {15N}, NMR SPECTROSCOPY, SOLUTION STRUCTURE               
EXPDTA    SOLUTION NMR                                                          
NUMMDL    20                                                                    
AUTHOR    P.PRISTOVSEK,C.LUECKE,B.REINCKE,B.LUDWIG,H.RUETERJANS                 
REVDAT   6   30-OCT-24 1C7M    1       REMARK                                   
REVDAT   5   27-DEC-23 1C7M    1       REMARK                                   
REVDAT   4   16-FEB-22 1C7M    1       REMARK LINK                              
REVDAT   3   24-FEB-09 1C7M    1       VERSN                                    
REVDAT   2   01-APR-03 1C7M    1       JRNL                                     
REVDAT   1   19-JUL-00 1C7M    0                                                
JRNL        AUTH   P.PRISTOVSEK,C.LUCKE,B.REINCKE,B.LUDWIG,H.RUTERJANS          
JRNL        TITL   SOLUTION STRUCTURE OF THE FUNCTIONAL DOMAIN OF PARACOCCUS    
JRNL        TITL 2 DENITRIFICANS CYTOCHROME C552 IN THE REDUCED STATE.          
JRNL        REF    EUR.J.BIOCHEM.                V. 267  4205 2000              
JRNL        REFN                   ISSN 0014-2956                               
JRNL        PMID   10866825                                                     
JRNL        DOI    10.1046/J.1432-1327.2000.01456.X                             
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   A.HARRENGA,B.REINCKE,H.RUETERJANS,B.LUDWIG,H.MICHEL          
REMARK   1  TITL   STRUCTURE OF THE SOLUBLE DOMAIN OF CYTOCHROME C552 FROM      
REMARK   1  TITL 2 PARACOCCUS DENITRIFICANS IN THE OXIDIZED AND REDUCED STATES  
REMARK   1  REF    J.MOL.BIOL.                   V. 295   667 2000              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1  DOI    10.1006/JMBI.1999.3382                                       
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   B.REINCKE,L.THOENY-MEYER,C.DANNEHL,A.ODENWALD,M.AIDIM,       
REMARK   1  AUTH 2 H.WITT,H.RUETERJANS,B.LUDWIG                                 
REMARK   1  TITL   HETEROLOGOUS EXPRESSION OF SOLUBLE FRAGMENTS OF CYTOCHROME   
REMARK   1  TITL 2 C552 ACTING AS ELECTRON DONOR TO THE PARACOCCUS              
REMARK   1  TITL 3 DENITRIFICANS CYTOCHROME C OXIDASE                           
REMARK   1  REF    BIOCHIM.BIOPHYS.ACTA          V.1441   114 1999              
REMARK   1  REFN                   ISSN 0006-3002                               
REMARK   2                                                                      
REMARK   2 RESOLUTION. NOT APPLICABLE.                                          
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : DISCOVER 97                                          
REMARK   3   AUTHORS     : MSI                                                  
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: ENERGY MINIMIZATION.                      
REMARK   4                                                                      
REMARK   4 1C7M COMPLIES WITH FORMAT V. 3.15, 01-DEC-08                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-MAR-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000001436.                                   
REMARK 210                                                                      
REMARK 210 EXPERIMENTAL DETAILS                                                 
REMARK 210  EXPERIMENT TYPE                : NMR                                
REMARK 210  TEMPERATURE           (KELVIN) : 298.00                             
REMARK 210  PH                             : 5.50                               
REMARK 210  IONIC STRENGTH                 : NULL                               
REMARK 210  PRESSURE                       : NULL                               
REMARK 210  SAMPLE CONTENTS                : 20 MM PHOSPHATE, 90% H2O/ 10%      
REMARK 210                                   D2O                                
REMARK 210                                                                      
REMARK 210  NMR EXPERIMENTS CONDUCTED      : 1H-1H TOCSY; 1H-1H NOESY; 1H-15N   
REMARK 210                                   HSQC; 1H- 15N TOCSY-HSQC; 1H-15N   
REMARK 210                                   NOESY-HSQC                         
REMARK 210  SPECTROMETER FIELD STRENGTH    : 500 MHZ; 600 MHZ                   
REMARK 210  SPECTROMETER MODEL             : DMX500; DMX600                     
REMARK 210  SPECTROMETER MANUFACTURER      : BRUKER                             
REMARK 210                                                                      
REMARK 210  STRUCTURE DETERMINATION.                                            
REMARK 210   SOFTWARE USED                 : DYANA 1.5, DISCOVER 97             
REMARK 210   METHOD USED                   : DISTANCE GEOMETRY, ENERGY          
REMARK 210                                   MINIMIZATION                       
REMARK 210                                                                      
REMARK 210 CONFORMERS, NUMBER CALCULATED   : 300                                
REMARK 210 CONFORMERS, NUMBER SUBMITTED    : 20                                 
REMARK 210 CONFORMERS, SELECTION CRITERIA  : LEAST RESTRAINT VIOLATIONS         
REMARK 210                                                                      
REMARK 210 BEST REPRESENTATIVE CONFORMER IN THIS ENSEMBLE : 1                   
REMARK 210                                                                      
REMARK 210 REMARK: THE EXPERIMENTS WERE PERFORMED WITH REDUCED UNLABELED OR     
REMARK 210  15N-LABELED CYTOCHROME C552.                                        
REMARK 215                                                                      
REMARK 215 NMR STUDY                                                            
REMARK 215 THE COORDINATES IN THIS ENTRY WERE GENERATED FROM SOLUTION           
REMARK 215 NMR DATA.  PROTEIN DATA BANK CONVENTIONS REQUIRE THAT                
REMARK 215 CRYST1 AND SCALE RECORDS BE INCLUDED, BUT THE VALUES ON              
REMARK 215 THESE RECORDS ARE MEANINGLESS.                                       
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
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   HG1  THR A    67     O    LEU A    83              1.50            
REMARK 500   HH   TYR A    46     O1A  HEC A   101              1.55            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS                                      
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3)               
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   RES CSSEQI ATM2   DEVIATION                     
REMARK 500  1 GLU A   8   CD    GLU A   8   OE2     0.110                       
REMARK 500  1 HIS A  53   CG    HIS A  53   CD2     0.055                       
REMARK 500  1 GLU A  60   CD    GLU A  60   OE1     0.114                       
REMARK 500  1 GLU A  64   CD    GLU A  64   OE2     0.112                       
REMARK 500  1 GLU A  87   CD    GLU A  87   OE2     0.112                       
REMARK 500  1 GLU A  97   CD    GLU A  97   OE1     0.110                       
REMARK 500  2 GLU A   8   CD    GLU A   8   OE1     0.111                       
REMARK 500  2 HIS A  53   CG    HIS A  53   CD2     0.054                       
REMARK 500  2 GLU A  60   CD    GLU A  60   OE2     0.110                       
REMARK 500  2 GLU A  64   CD    GLU A  64   OE2     0.109                       
REMARK 500  2 GLU A  87   CD    GLU A  87   OE2     0.112                       
REMARK 500  2 GLU A  97   CD    GLU A  97   OE1     0.114                       
REMARK 500  3 GLU A   8   CD    GLU A   8   OE1     0.114                       
REMARK 500  3 HIS A  29   CG    HIS A  29   CD2     0.056                       
REMARK 500  3 HIS A  53   CG    HIS A  53   CD2     0.055                       
REMARK 500  3 GLU A  60   CD    GLU A  60   OE2     0.109                       
REMARK 500  3 GLU A  64   CD    GLU A  64   OE1     0.118                       
REMARK 500  3 GLU A  87   CD    GLU A  87   OE2     0.113                       
REMARK 500  3 GLU A  97   CD    GLU A  97   OE2     0.109                       
REMARK 500  4 GLU A   8   CD    GLU A   8   OE2     0.116                       
REMARK 500  4 HIS A  53   CG    HIS A  53   CD2     0.054                       
REMARK 500  4 GLU A  60   CD    GLU A  60   OE2     0.117                       
REMARK 500  4 GLU A  64   CD    GLU A  64   OE1     0.111                       
REMARK 500  4 GLU A  87   CD    GLU A  87   OE2     0.113                       
REMARK 500  4 GLU A  97   CD    GLU A  97   OE2     0.108                       
REMARK 500  5 GLU A   8   CD    GLU A   8   OE2     0.116                       
REMARK 500  5 HIS A  53   CG    HIS A  53   CD2     0.054                       
REMARK 500  5 GLU A  60   CD    GLU A  60   OE2     0.109                       
REMARK 500  5 GLU A  64   CD    GLU A  64   OE1     0.113                       
REMARK 500  5 GLU A  87   CD    GLU A  87   OE2     0.110                       
REMARK 500  5 GLU A  97   CD    GLU A  97   OE1     0.115                       
REMARK 500  6 GLU A   8   CD    GLU A   8   OE2     0.109                       
REMARK 500  6 HIS A  53   CG    HIS A  53   CD2     0.055                       
REMARK 500  6 GLU A  60   CD    GLU A  60   OE2     0.109                       
REMARK 500  6 GLU A  64   CD    GLU A  64   OE1     0.109                       
REMARK 500  6 GLU A  87   CD    GLU A  87   OE2     0.115                       
REMARK 500  6 GLU A  97   CD    GLU A  97   OE1     0.113                       
REMARK 500  7 GLU A   8   CD    GLU A   8   OE2     0.110                       
REMARK 500  7 GLU A  60   CD    GLU A  60   OE1     0.114                       
REMARK 500  7 GLU A  64   CD    GLU A  64   OE1     0.113                       
REMARK 500  7 GLU A  87   CD    GLU A  87   OE1     0.110                       
REMARK 500  7 GLU A  97   CD    GLU A  97   OE1     0.111                       
REMARK 500  8 GLU A   8   CD    GLU A   8   OE1     0.113                       
REMARK 500  8 HIS A  53   CG    HIS A  53   CD2     0.055                       
REMARK 500  8 GLU A  60   CD    GLU A  60   OE1     0.114                       
REMARK 500  8 GLU A  64   CD    GLU A  64   OE1     0.117                       
REMARK 500  8 GLU A  87   CD    GLU A  87   OE2     0.115                       
REMARK 500  8 GLU A  97   CD    GLU A  97   OE1     0.113                       
REMARK 500  9 GLU A   8   CD    GLU A   8   OE2     0.113                       
REMARK 500  9 HIS A  53   CG    HIS A  53   CD2     0.056                       
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     119 BOND DEVIATIONS.                              
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  1 ASP A   3   CB  -  CG  -  OD2 ANGL. DEV. =  -5.7 DEGREES          
REMARK 500  1 HIS A  18   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.6 DEGREES          
REMARK 500  1 ASP A  21   CB  -  CG  -  OD1 ANGL. DEV. =  -5.9 DEGREES          
REMARK 500  1 ASP A  21   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  1 ASP A  24   CB  -  CG  -  OD1 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500  1 HIS A  29   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.4 DEGREES          
REMARK 500  1 ARG A  36   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500  1 ASP A  42   CB  -  CG  -  OD2 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500  1 ASP A  48   CB  -  CG  -  OD1 ANGL. DEV. =  -5.9 DEGREES          
REMARK 500  1 ASP A  48   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500  1 HIS A  53   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.5 DEGREES          
REMARK 500  1 ASP A  56   CB  -  CG  -  OD1 ANGL. DEV. =   5.5 DEGREES          
REMARK 500  1 ASP A  56   CB  -  CG  -  OD2 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500  1 ASP A  88   CB  -  CG  -  OD1 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500  1 ARG A  89   NE  -  CZ  -  NH1 ANGL. DEV. =   3.2 DEGREES          
REMARK 500  2 ASP A   3   CB  -  CG  -  OD1 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500  2 ASP A   3   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  2 HIS A  18   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.6 DEGREES          
REMARK 500  2 ASP A  21   CB  -  CG  -  OD1 ANGL. DEV. =  -5.9 DEGREES          
REMARK 500  2 ASP A  21   CB  -  CG  -  OD2 ANGL. DEV. =   5.4 DEGREES          
REMARK 500  2 ASP A  24   CB  -  CG  -  OD1 ANGL. DEV. =  -5.8 DEGREES          
REMARK 500  2 ASP A  24   CB  -  CG  -  OD2 ANGL. DEV. =   5.5 DEGREES          
REMARK 500  2 HIS A  29   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.7 DEGREES          
REMARK 500  2 ARG A  36   CG  -  CD  -  NE  ANGL. DEV. =  15.2 DEGREES          
REMARK 500  2 ARG A  36   NE  -  CZ  -  NH1 ANGL. DEV. =   4.3 DEGREES          
REMARK 500  2 ASP A  42   CB  -  CG  -  OD2 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500  2 HIS A  53   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.5 DEGREES          
REMARK 500  2 ASP A  56   CB  -  CG  -  OD1 ANGL. DEV. =  -6.2 DEGREES          
REMARK 500  2 ASP A  56   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  2 ARG A  89   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  3 ASP A   3   CB  -  CG  -  OD1 ANGL. DEV. =  -6.2 DEGREES          
REMARK 500  3 HIS A  18   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.5 DEGREES          
REMARK 500  3 ASP A  21   CB  -  CG  -  OD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  3 ASP A  21   CB  -  CG  -  OD2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500  3 ASP A  24   CB  -  CG  -  OD1 ANGL. DEV. =   6.1 DEGREES          
REMARK 500  3 ASP A  24   CB  -  CG  -  OD2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500  3 HIS A  29   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.6 DEGREES          
REMARK 500  3 ARG A  36   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500  3 ASP A  48   CB  -  CG  -  OD1 ANGL. DEV. =  -5.9 DEGREES          
REMARK 500  3 HIS A  53   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.4 DEGREES          
REMARK 500  3 ASP A  56   CB  -  CG  -  OD1 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  3 ASP A  56   CB  -  CG  -  OD2 ANGL. DEV. =  -5.9 DEGREES          
REMARK 500  3 ASP A  88   CB  -  CG  -  OD1 ANGL. DEV. =   5.9 DEGREES          
REMARK 500  3 ASP A  88   CB  -  CG  -  OD2 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500  3 ARG A  89   NE  -  CZ  -  NH1 ANGL. DEV. =   3.4 DEGREES          
REMARK 500  4 ASP A   3   CB  -  CG  -  OD1 ANGL. DEV. =  -6.0 DEGREES          
REMARK 500  4 ASP A   3   CB  -  CG  -  OD2 ANGL. DEV. =   5.6 DEGREES          
REMARK 500  4 HIS A  18   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.6 DEGREES          
REMARK 500  4 ASP A  24   CB  -  CG  -  OD1 ANGL. DEV. =  -5.5 DEGREES          
REMARK 500  4 HIS A  29   ND1 -  CE1 -  NE2 ANGL. DEV. =   8.4 DEGREES          
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     300 ANGLE DEVIATIONS.                             
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  1 LEU A  20      -51.11     85.13                                   
REMARK 500  1 ASP A  24      -95.74     69.77                                   
REMARK 500  1 ALA A  39       64.66     63.66                                   
REMARK 500  1 GLU A  60      -59.95   -169.56                                   
REMARK 500  2 ASP A  24      -81.87   -102.71                                   
REMARK 500  2 ASN A  31       97.75    -62.47                                   
REMARK 500  2 ALA A  39       79.08     68.32                                   
REMARK 500  2 ASP A  42     -154.43     60.81                                   
REMARK 500  2 PRO A  59        9.98    -64.32                                   
REMARK 500  2 LYS A  77        8.91    -67.56                                   
REMARK 500  3 ALA A   2       77.19   -102.44                                   
REMARK 500  3 LEU A  20       17.22     54.72                                   
REMARK 500  3 ASP A  21       56.59   -104.78                                   
REMARK 500  3 ASP A  24      -85.84    -92.10                                   
REMARK 500  3 ALA A  39       75.21     71.03                                   
REMARK 500  3 TYR A  46      162.09     64.47                                   
REMARK 500  3 PRO A  59       24.12    -66.60                                   
REMARK 500  3 GLU A  60      -45.69   -132.29                                   
REMARK 500  3 LYS A  77       11.64    -68.80                                   
REMARK 500  4 ALA A   2       72.70   -109.94                                   
REMARK 500  4 LEU A  20        1.59     53.14                                   
REMARK 500  4 ASP A  21       60.35   -109.06                                   
REMARK 500  4 ASP A  24      -77.60    -98.38                                   
REMARK 500  4 ALA A  39       62.60     70.60                                   
REMARK 500  4 PRO A  59       16.09    -66.23                                   
REMARK 500  4 LYS A  77        3.02    -66.42                                   
REMARK 500  5 LEU A  20      -39.61     81.63                                   
REMARK 500  5 ASP A  21       48.63    -86.54                                   
REMARK 500  5 ASP A  24      -86.78   -128.29                                   
REMARK 500  5 PRO A  59       22.37    -66.21                                   
REMARK 500  5 GLU A  60      -47.61   -131.99                                   
REMARK 500  6 ALA A   2       76.55   -111.01                                   
REMARK 500  6 LEU A  20       -7.41     60.65                                   
REMARK 500  6 ASP A  21       53.49    -92.47                                   
REMARK 500  6 ASP A  24      -77.19    -99.08                                   
REMARK 500  6 GLU A  60      -62.24   -172.11                                   
REMARK 500  7 ALA A   2       72.69   -105.31                                   
REMARK 500  7 ASP A  24      -83.22    -95.34                                   
REMARK 500  7 ALA A  39       88.20     73.03                                   
REMARK 500  7 ASP A  42       95.77    -66.65                                   
REMARK 500  7 GLU A  60      -64.29   -173.66                                   
REMARK 500  7 ASN A  68       86.04   -159.57                                   
REMARK 500  7 LYS A  77        3.24    -67.70                                   
REMARK 500  8 LEU A  20        8.41     56.61                                   
REMARK 500  8 ASP A  21       51.84   -109.26                                   
REMARK 500  8 ASP A  24      -77.01    -99.55                                   
REMARK 500  8 PRO A  59       20.62    -66.79                                   
REMARK 500  8 GLU A  60      -41.19   -131.08                                   
REMARK 500  8 LYS A  77       22.10    -73.25                                   
REMARK 500  9 ALA A   2       74.54   -117.33                                   
REMARK 500                                                                      
REMARK 500 THIS ENTRY HAS     121 RAMACHANDRAN OUTLIERS.                        
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS                                         
REMARK 500                                                                      
REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH          
REMARK 500 CIS AND TRANS CONFORMATION.  CIS BONDS, IF ANY, ARE LISTED           
REMARK 500 ON CISPEP RECORDS.  TRANS IS DEFINED AS 180 +/- 30 AND               
REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES.                                  
REMARK 500                                 MODEL     OMEGA                      
REMARK 500 LEU A   96     GLU A   97          1       145.46                    
REMARK 500 LEU A   96     GLU A   97          3       138.05                    
REMARK 500 LEU A   96     GLU A   97          6       144.65                    
REMARK 500 LEU A   96     GLU A   97          9       142.97                    
REMARK 500 LEU A   96     GLU A   97         10       142.98                    
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: PLANAR GROUPS                                              
REMARK 500                                                                      
REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL                 
REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE                    
REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN                    
REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS                        
REMARK 500 AN RMSD GREATER THAN THIS VALUE                                      
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        RMS     TYPE                                    
REMARK 500  1 HIS A  18         0.10    SIDE CHAIN                              
REMARK 500  2 ARG A  36         0.08    SIDE CHAIN                              
REMARK 500  2 PHE A  65         0.08    SIDE CHAIN                              
REMARK 500  3 HIS A  29         0.08    SIDE CHAIN                              
REMARK 500  7 HIS A  18         0.10    SIDE CHAIN                              
REMARK 500  7 ARG A  36         0.08    SIDE CHAIN                              
REMARK 500  7 PHE A  65         0.08    SIDE CHAIN                              
REMARK 500 11 PHE A  65         0.08    SIDE CHAIN                              
REMARK 500 12 HIS A  18         0.10    SIDE CHAIN                              
REMARK 500 13 PHE A  65         0.08    SIDE CHAIN                              
REMARK 500 14 HIS A  18         0.10    SIDE CHAIN                              
REMARK 500 16 HIS A  18         0.10    SIDE CHAIN                              
REMARK 500 17 PHE A  65         0.09    SIDE CHAIN                              
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                             HEC A 101  FE                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A  18   NE2                                                    
REMARK 620 2 HEC A 101   NA   82.6                                              
REMARK 620 3 HEC A 101   NB   85.5  84.1                                        
REMARK 620 4 HEC A 101   NC  112.1 164.9  93.3                                  
REMARK 620 5 HEC A 101   ND   87.7  86.5 169.0  97.2                            
REMARK 620 6 MET A  78   SD  149.6  67.2  93.6  98.3  88.0                      
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 HEC A 101                 
DBREF  1C7M A    2   100  UNP    P54820   CY552_PARDE     78    176             
SEQADV 1C7M MET A    1  UNP  P54820              SEE REMARK 999                 
SEQRES   1 A  100  MET ALA ASP PRO ALA ALA GLY GLU LYS VAL PHE GLY LYS          
SEQRES   2 A  100  CYS LYS ALA CYS HIS LYS LEU ASP GLY ASN ASP GLY VAL          
SEQRES   3 A  100  GLY PRO HIS LEU ASN GLY VAL VAL GLY ARG THR VAL ALA          
SEQRES   4 A  100  GLY VAL ASP GLY PHE ASN TYR SER ASP PRO MET LYS ALA          
SEQRES   5 A  100  HIS GLY GLY ASP TRP THR PRO GLU ALA LEU GLN GLU PHE          
SEQRES   6 A  100  LEU THR ASN PRO LYS ALA VAL VAL LYS GLY THR LYS MET          
SEQRES   7 A  100  ALA PHE ALA GLY LEU PRO LYS ILE GLU ASP ARG ALA ASN          
SEQRES   8 A  100  LEU ILE ALA TYR LEU GLU GLY GLN GLN                          
HET    HEC  A 101      75                                                       
HETNAM     HEC HEME C                                                           
FORMUL   2  HEC    C34 H34 FE N4 O4                                             
HELIX    1  H1 PRO A    4  CYS A   14  1                                  11    
HELIX    2  H2 ASP A   48  HIS A   53  1                                   6    
HELIX    3  H3 ALA A   61  PHE A   65  1                                   5    
HELIX    4  H4 PRO A   69  VAL A   72  1                                   4    
HELIX    5  H5 ILE A   86  GLY A   98  1                                  13    
LINK         SG  CYS A  14                 CAB HEC A 101     1555   1555  1.80  
LINK         SG  CYS A  17                 CAC HEC A 101     1555   1555  1.82  
LINK         NE2 HIS A  18                FE   HEC A 101     1555   1555  1.79  
LINK         SD  MET A  78                FE   HEC A 101     1555   1555  2.12  
SITE     1 AC1 21 LYS A  13  CYS A  14  CYS A  17  HIS A  18                    
SITE     2 AC1 21 VAL A  26  GLY A  27  LEU A  30  ALA A  39                    
SITE     3 AC1 21 GLY A  40  PHE A  44  TYR A  46  SER A  47                    
SITE     4 AC1 21 MET A  50  TRP A  57  PHE A  65  LEU A  66                    
SITE     5 AC1 21 LYS A  77  MET A  78  ALA A  79  PHE A  80                    
SITE     6 AC1 21 LEU A  92                                                     
CRYST1    1.000    1.000    1.000  90.00  90.00  90.00 P 1           1          
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      1.000000  0.000000  0.000000        0.00000                         
SCALE2      0.000000  1.000000  0.000000        0.00000                         
SCALE3      0.000000  0.000000  1.000000        0.00000                         
MODEL        1