HEADER    PHOTOSYNTHESIS                          09-MAY-00   1EYX              
TITLE     CRYSTAL STRUCTURE OF R-PHYCOERYTHRIN AT 2.2 ANGSTROMS                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: R-PHYCOERYTHRIN;                                           
COMPND   3 CHAIN: A, K;                                                         
COMPND   4 FRAGMENT: ALPHA CHAIN;                                               
COMPND   5 MOL_ID: 2;                                                           
COMPND   6 MOLECULE: R-PHYCOERYTHRIN;                                           
COMPND   7 CHAIN: B, L;                                                         
COMPND   8 FRAGMENT: BETA CHAIN;                                                
COMPND   9 MOL_ID: 3;                                                           
COMPND  10 MOLECULE: R-PHYCOERYTHRIN;                                           
COMPND  11 CHAIN: G, H;                                                         
COMPND  12 FRAGMENT: GAMMA CHAIN                                                
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: GRACILARIA CHILENSIS;                           
SOURCE   3 ORGANISM_TAXID: 2775;                                                
SOURCE   4 ORGANELLE: CHLOROPLAST;                                              
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: GRACILARIA CHILENSIS;                           
SOURCE   7 ORGANISM_TAXID: 2775;                                                
SOURCE   8 ORGANELLE: CHLOROPLAST;                                              
SOURCE   9 MOL_ID: 3;                                                           
SOURCE  10 ORGANISM_SCIENTIFIC: GRACILARIA CHILENSIS;                           
SOURCE  11 ORGANISM_TAXID: 2775;                                                
SOURCE  12 ORGANELLE: CHLOROPLAST                                               
KEYWDS    R-PHYCOERYTHRIN, MACROSEEDING, TWIN, PROTEIN STRUCTURE, SEQUENCES,    
KEYWDS   2 PHYCOBILIPROTEIN, RED ALGAE, PHOTOSYNTHESIS                          
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    C.CONTRERAS-MARTEL,P.LEGRAND,C.PIRAS,X.VERNEDE,J.MARTINEZ-OYANEDEL,   
AUTHOR   2 M.BUNSTER,J.C.FONTECILLA-CAMPS                                       
REVDAT   4   09-AUG-23 1EYX    1       REMARK LINK                              
REVDAT   3   24-FEB-09 1EYX    1       VERSN                                    
REVDAT   2   28-MAR-01 1EYX    1       JRNL                                     
REVDAT   1   22-NOV-00 1EYX    0                                                
JRNL        AUTH   C.CONTRERAS-MARTEL,J.MARTINEZ-OYANEDEL,M.BUNSTER,P.LEGRAND,  
JRNL        AUTH 2 C.PIRAS,X.VERNEDE,J.C.FONTECILLA-CAMPS                       
JRNL        TITL   CRYSTALLIZATION AND 2.2 A RESOLUTION STRUCTURE OF            
JRNL        TITL 2 R-PHYCOERYTHRIN FROM GRACILARIA CHILENSIS: A CASE OF PERFECT 
JRNL        TITL 3 HEMIHEDRAL TWINNING.                                         
JRNL        REF    ACTA CRYSTALLOGR.,SECT.D      V.  57    52 2001              
JRNL        REFN                   ISSN 0907-4449                               
JRNL        PMID   11134927                                                     
JRNL        DOI    10.1107/S0907444900015274                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.25 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) : 2.25                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 999.00                         
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 94.6                           
REMARK   3   CROSS-VALIDATION METHOD           : FREE R                         
REMARK   3   FREE R VALUE TEST SET SELECTION   : RANDOM BY LAYERS               
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (NO CUTOFF).                         
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : 0.180                  
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : 0.192                  
REMARK   3   FREE R VALUE                  (NO CUTOFF) : 0.279                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : 5.000                  
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : 185                    
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : 34796                  
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL FOR DATA WITH F>4SIG(F).                     
REMARK   3   R VALUE   (WORKING + TEST SET, F>4SIG(F)) : 0.162                  
REMARK   3   R VALUE          (WORKING SET, F>4SIG(F)) : 0.171                  
REMARK   3   FREE R VALUE                  (F>4SIG(F)) : 0.255                  
REMARK   3   FREE R VALUE TEST SET SIZE (%, F>4SIG(F)) : 5.300                  
REMARK   3   FREE R VALUE TEST SET COUNT   (F>4SIG(F)) : 1608                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (F>4SIG(F)) : 30239                  
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS      : 5169                                          
REMARK   3   NUCLEIC ACID ATOMS : 0                                             
REMARK   3   HETEROGEN ATOMS    : 440                                           
REMARK   3   SOLVENT ATOMS      : 110                                           
REMARK   3                                                                      
REMARK   3  MODEL REFINEMENT.                                                   
REMARK   3   OCCUPANCY SUM OF NON-HYDROGEN ATOMS      : 5654.0                  
REMARK   3   OCCUPANCY SUM OF HYDROGEN ATOMS          : 0.00                    
REMARK   3   NUMBER OF DISCRETELY DISORDERED RESIDUES : NULL                    
REMARK   3   NUMBER OF LEAST-SQUARES PARAMETERS       : 2290                    
REMARK   3   NUMBER OF RESTRAINTS                     : 3005                    
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM RESTRAINT TARGET VALUES.                        
REMARK   3   BOND LENGTHS                         (A) : 0.004                   
REMARK   3   ANGLE DISTANCES                      (A) : 0.012                   
REMARK   3   SIMILAR DISTANCES (NO TARGET VALUES) (A) : 0.023                   
REMARK   3   DISTANCES FROM RESTRAINT PLANES      (A) : 0.016                   
REMARK   3   ZERO CHIRAL VOLUMES               (A**3) : 0.000                   
REMARK   3   NON-ZERO CHIRAL VOLUMES           (A**3) : 0.006                   
REMARK   3   ANTI-BUMPING DISTANCE RESTRAINTS     (A) : 0.018                   
REMARK   3   RIGID-BOND ADP COMPONENTS         (A**2) : 0.000                   
REMARK   3   SIMILAR ADP COMPONENTS            (A**2) : 0.091                   
REMARK   3   APPROXIMATELY ISOTROPIC ADPS      (A**2) : 0.000                   
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED: NULL                                                  
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 1EYX COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-JUN-00.                  
REMARK 100 THE DEPOSITION ID IS D_1000011042.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 31-AUG-98                          
REMARK 200  TEMPERATURE           (KELVIN) : 100.0                              
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ESRF                               
REMARK 200  BEAMLINE                       : BM14                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9783                             
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : IMAGE PLATE                        
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                        
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS V. 1998                        
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                          
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 38751                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.160                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 42.550                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 3.100                              
REMARK 200  R MERGE                    (I) : 0.10100                            
REMARK 200  R SYM                      (I) : 0.10100                            
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 7.3000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.16                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.28                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 89.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.00                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.03900                            
REMARK 200  R SYM FOR SHELL            (I) : 0.03900                            
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.800                              
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: PDB ENTRY 1LIA                                       
REMARK 200                                                                      
REMARK 200 REMARK: A PERFECT HEMIHEDRAL TWINNED CRYSTAL. STANLEY                
REMARK 200  DISTRIBUTION, 1.44. TWIN FRACTION, 0.48.                            
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 34.70                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.88                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 200 MM HEPES, 500 MM SODIUM CHLORIDE,    
REMARK 280  50 MM POTASIUM CHLORIDE, 15 MM SODIUM AZIDE, 16% AMMONIUM           
REMARK 280  SULPHATE, PH 7.0, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 293K   
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290       4555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       5555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       6555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290       7555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290       8555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290       9555   -X+Y+1/3,-X+2/3,Z+2/3                                   
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       93.63400            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       54.05962            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       19.70300            
REMARK 290   SMTRY1   5 -0.500000 -0.866025  0.000000       93.63400            
REMARK 290   SMTRY2   5  0.866025 -0.500000  0.000000       54.05962            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       19.70300            
REMARK 290   SMTRY1   6 -0.500000  0.866025  0.000000       93.63400            
REMARK 290   SMTRY2   6 -0.866025 -0.500000  0.000000       54.05962            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       19.70300            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000      108.11923            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       39.40600            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000      108.11923            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       39.40600            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000      108.11923            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       39.40600            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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: HEXAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 21680 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 28020 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -204.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, K, L, G, H                      
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 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTADECAMERIC              
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 77450 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 71640 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -668.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, K, L, G, H                      
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 350   BIOMT1   2 -0.500000 -0.866025  0.000000      187.26800            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000       93.63400            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000      162.17885            
REMARK 350   BIOMT3   3  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     ALA H     0                                                      
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    ASN A  47       39.29   -147.55                                   
REMARK 500    TYR A  63       78.40   -117.13                                   
REMARK 500    ASP B   3     -166.03   -128.95                                   
REMARK 500    TYR B  18      161.45    -49.67                                   
REMARK 500    PRO B  69       98.92    -48.84                                   
REMARK 500    THR B  75      151.03     91.68                                   
REMARK 500    CYS B 109      -65.44   -120.96                                   
REMARK 500    GLU B 152       73.21   -118.83                                   
REMARK 500    SER K  20     -152.71   -128.54                                   
REMARK 500    ASN K  47       35.94   -149.33                                   
REMARK 500    TYR K  63       72.76   -118.77                                   
REMARK 500    GLU K  71     -164.04   -101.94                                   
REMARK 500    ASP L   3     -169.99   -128.27                                   
REMARK 500    PRO L  69       96.16    -50.41                                   
REMARK 500    THR L  75      156.10     87.94                                   
REMARK 500    CYS L 109      -64.14   -122.93                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 201                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 202                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BLA A 166                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC A 168                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PUB B 179                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 181                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 183                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC K 166                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC K 168                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PUB L 179                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC L 181                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC L 183                 
DBREF  1EYX A    1   164  UNP    Q7SIG0   Q7SIG0_GRACH     1    164             
DBREF  1EYX B    1   177  UNP    Q7SIF9   Q7SIF9_GRACH     1    177             
DBREF  1EYX K    1   164  UNP    Q7SIG0   Q7SIG0_GRACH     1    164             
DBREF  1EYX L    1   177  UNP    Q7SIF9   Q7SIF9_GRACH     1    177             
DBREF  1EYX G    1     6  PDB    1EYX     1EYX             1      6             
DBREF  1EYX H    0     5  PDB    1EYX     1EYX             0      5             
SEQRES   1 A  164  MET LYS SER VAL ILE THR THR VAL ILE SER ALA ALA ASP          
SEQRES   2 A  164  SER ALA GLY ARG PHE PRO SER SER SER ASP LEU GLU SER          
SEQRES   3 A  164  VAL GLN GLY ASN ILE GLN ARG ALA SER ALA ARG LEU GLU          
SEQRES   4 A  164  ALA ALA GLU LYS LEU ALA SER ASN HIS GLU ALA VAL VAL          
SEQRES   5 A  164  LYS GLU ALA GLY ASP ALA CYS PHE GLY LYS TYR GLY TYR          
SEQRES   6 A  164  LEU LYS ASN PRO GLY GLU ALA GLY GLU ASN GLN GLU LYS          
SEQRES   7 A  164  ILE ASN LYS CYS TYR ARG ASP ILE ASP HIS TYR MET ARG          
SEQRES   8 A  164  LEU VAL ASN TYR SER LEU VAL ILE GLY GLY THR GLY PRO          
SEQRES   9 A  164  LEU ASP GLU TRP GLY ILE ALA GLY ALA ARG GLU VAL TYR          
SEQRES  10 A  164  ARG THR LEU ASN LEU PRO THR SER ALA TYR ILE ALA ALA          
SEQRES  11 A  164  PHE ALA PHE THR ARG ASP ARG LEU CYS GLY PRO ARG ASP          
SEQRES  12 A  164  MET SER ALA GLN ALA GLY VAL GLU TYR SER THR ALA LEU          
SEQRES  13 A  164  ASP TYR ILE ILE ASN SER LEU SER                              
SEQRES   1 B  177  MET LEU ASP ALA PHE SER ARG VAL ILE SER ASN ALA ASP          
SEQRES   2 B  177  ALA LYS ALA ALA TYR VAL GLY GLY SER ASP LEU GLN ALA          
SEQRES   3 B  177  LEU ARG THR PHE ILE SER ASP GLY ASN LYS ARG LEU ASP          
SEQRES   4 B  177  ALA VAL ASN TYR ILE VAL SER ASN SER SER CYS ILE VAL          
SEQRES   5 B  177  SER ASP ALA ILE SER GLY MET ILE CYS GLU ASN PRO GLY          
SEQRES   6 B  177  LEU ILE THR PRO GLY GLY MEN CYS TYR THR ASN ARG ARG          
SEQRES   7 B  177  MET ALA ALA CYS LEU ARG ASP GLY GLU ILE ILE LEU ARG          
SEQRES   8 B  177  TYR ILE SER TYR ALA LEU LEU ALA GLY ASP SER SER VAL          
SEQRES   9 B  177  LEU GLU ASP ARG CYS LEU ASN GLY LEU LYS GLU THR TYR          
SEQRES  10 B  177  ILE ALA LEU GLY VAL PRO THR ASN SER THR VAL ARG ALA          
SEQRES  11 B  177  VAL SER ILE MET LYS ALA ALA VAL GLY ALA PHE ILE SER          
SEQRES  12 B  177  ASN THR ALA SER GLN ARG LYS GLY GLU VAL ILE GLU GLY          
SEQRES  13 B  177  ASP CYS SER ALA LEU ALA ALA GLU ILE ALA SER TYR CYS          
SEQRES  14 B  177  ASP ARG ILE SER ALA ALA VAL SER                              
SEQRES   1 K  164  MET LYS SER VAL ILE THR THR VAL ILE SER ALA ALA ASP          
SEQRES   2 K  164  SER ALA GLY ARG PHE PRO SER SER SER ASP LEU GLU SER          
SEQRES   3 K  164  VAL GLN GLY ASN ILE GLN ARG ALA SER ALA ARG LEU GLU          
SEQRES   4 K  164  ALA ALA GLU LYS LEU ALA SER ASN HIS GLU ALA VAL VAL          
SEQRES   5 K  164  LYS GLU ALA GLY ASP ALA CYS PHE GLY LYS TYR GLY TYR          
SEQRES   6 K  164  LEU LYS ASN PRO GLY GLU ALA GLY GLU ASN GLN GLU LYS          
SEQRES   7 K  164  ILE ASN LYS CYS TYR ARG ASP ILE ASP HIS TYR MET ARG          
SEQRES   8 K  164  LEU VAL ASN TYR SER LEU VAL ILE GLY GLY THR GLY PRO          
SEQRES   9 K  164  LEU ASP GLU TRP GLY ILE ALA GLY ALA ARG GLU VAL TYR          
SEQRES  10 K  164  ARG THR LEU ASN LEU PRO THR SER ALA TYR ILE ALA ALA          
SEQRES  11 K  164  PHE ALA PHE THR ARG ASP ARG LEU CYS GLY PRO ARG ASP          
SEQRES  12 K  164  MET SER ALA GLN ALA GLY VAL GLU TYR SER THR ALA LEU          
SEQRES  13 K  164  ASP TYR ILE ILE ASN SER LEU SER                              
SEQRES   1 L  177  MET LEU ASP ALA PHE SER ARG VAL ILE SER ASN ALA ASP          
SEQRES   2 L  177  ALA LYS ALA ALA TYR VAL GLY GLY SER ASP LEU GLN ALA          
SEQRES   3 L  177  LEU ARG THR PHE ILE SER ASP GLY ASN LYS ARG LEU ASP          
SEQRES   4 L  177  ALA VAL ASN TYR ILE VAL SER ASN SER SER CYS ILE VAL          
SEQRES   5 L  177  SER ASP ALA ILE SER GLY MET ILE CYS GLU ASN PRO GLY          
SEQRES   6 L  177  LEU ILE THR PRO GLY GLY MEN CYS TYR THR ASN ARG ARG          
SEQRES   7 L  177  MET ALA ALA CYS LEU ARG ASP GLY GLU ILE ILE LEU ARG          
SEQRES   8 L  177  TYR ILE SER TYR ALA LEU LEU ALA GLY ASP SER SER VAL          
SEQRES   9 L  177  LEU GLU ASP ARG CYS LEU ASN GLY LEU LYS GLU THR TYR          
SEQRES  10 L  177  ILE ALA LEU GLY VAL PRO THR ASN SER THR VAL ARG ALA          
SEQRES  11 L  177  VAL SER ILE MET LYS ALA ALA VAL GLY ALA PHE ILE SER          
SEQRES  12 L  177  ASN THR ALA SER GLN ARG LYS GLY GLU VAL ILE GLU GLY          
SEQRES  13 L  177  ASP CYS SER ALA LEU ALA ALA GLU ILE ALA SER TYR CYS          
SEQRES  14 L  177  ASP ARG ILE SER ALA ALA VAL SER                              
SEQRES   1 G    6  ALA ALA PHE ARG ALA ALA                                      
SEQRES   1 H    6  ALA ALA PHE ARG ALA ALA                                      
MODRES 1EYX MEN B   72  ASN  N-METHYL ASPARAGINE                                
MODRES 1EYX MEN L   72  ASN  N-METHYL ASPARAGINE                                
HET    MEN  B  72       9                                                       
HET    MEN  L  72       9                                                       
HET    SO4  A 201       5                                                       
HET    BLA  A 166      43                                                       
HET    CYC  A 168      43                                                       
HET    SO4  B 202       5                                                       
HET    PUB  B 179      43                                                       
HET    CYC  B 181      43                                                       
HET    CYC  B 183      43                                                       
HET    CYC  K 166      43                                                       
HET    CYC  K 168      43                                                       
HET    PUB  L 179      43                                                       
HET    CYC  L 181      43                                                       
HET    CYC  L 183      43                                                       
HETNAM     MEN N-METHYL ASPARAGINE                                              
HETNAM     SO4 SULFATE ION                                                      
HETNAM     BLA BILIVERDINE IX ALPHA                                             
HETNAM     CYC PHYCOCYANOBILIN                                                  
HETNAM     PUB PHYCOUROBILIN                                                    
FORMUL   2  MEN    2(C5 H10 N2 O3)                                              
FORMUL   7  SO4    2(O4 S 2-)                                                   
FORMUL   8  BLA    C33 H34 N4 O6                                                
FORMUL   9  CYC    7(C33 H40 N4 O6)                                             
FORMUL  11  PUB    2(C33 H42 N4 O6)                                             
FORMUL  19  HOH   *110(H2 O)                                                    
HELIX    1   1 SER A    3  SER A   14  1                                  12    
HELIX    2   2 SER A   20  ALA A   34  1                                  15    
HELIX    3   3 ARG A   33  HIS A   48  1                                  16    
HELIX    4   4 ASN A   47  TYR A   63  1                                  17    
HELIX    5   5 GLY A   64  ASN A   68  5                                   5    
HELIX    6   6 ASN A   75  GLY A  100  1                                  26    
HELIX    7   7 THR A  102  GLY A  109  1                                   8    
HELIX    8   8 GLY A  112  LEU A  120  1                                   9    
HELIX    9   9 PRO A  123  LEU A  138  1                                  16    
HELIX   10  10 GLN A  147  LEU A  163  1                                  17    
HELIX   11  11 PHE B    5  ALA B   14  1                                  10    
HELIX   12  12 GLY B   20  ASP B   33  1                                  14    
HELIX   13  13 ASP B   33  SER B   46  1                                  14    
HELIX   14  14 ASN B   47  GLU B   62  1                                  16    
HELIX   15  15 ASN B   63  THR B   68  5                                   6    
HELIX   16  16 THR B   75  GLY B  100  1                                  26    
HELIX   17  17 SER B  102  CYS B  109  1                                   8    
HELIX   18  18 GLY B  112  GLY B  121  1                                  10    
HELIX   19  19 PRO B  123  SER B  143  1                                  21    
HELIX   20  20 CYS B  158  VAL B  176  1                                  19    
HELIX   21  21 SER K    3  SER K   14  1                                  12    
HELIX   22  22 SER K   20  GLY K   29  1                                  10    
HELIX   23  23 GLY K   29  ALA K   34  1                                   6    
HELIX   24  24 ARG K   33  HIS K   48  1                                  16    
HELIX   25  25 ASN K   47  TYR K   63  1                                  17    
HELIX   26  26 GLY K   64  ASN K   68  5                                   5    
HELIX   27  27 ASN K   75  GLY K  100  1                                  26    
HELIX   28  28 THR K  102  GLY K  109  1                                   8    
HELIX   29  29 GLY K  112  LEU K  120  1                                   9    
HELIX   30  30 PRO K  123  LEU K  138  1                                  16    
HELIX   31  31 CYS K  139  MET K  144  1                                   6    
HELIX   32  32 SER K  145  LEU K  163  1                                  19    
HELIX   33  33 ASP L    3  ALA L   14  1                                  12    
HELIX   34  34 GLY L   20  ASP L   33  1                                  14    
HELIX   35  35 ASP L   33  SER L   46  1                                  14    
HELIX   36  36 ASN L   47  GLU L   62  1                                  16    
HELIX   37  37 ASN L   63  THR L   68  5                                   6    
HELIX   38  38 THR L   75  GLY L  100  1                                  26    
HELIX   39  39 SER L  102  ARG L  108  1                                   7    
HELIX   40  40 GLY L  112  GLY L  121  1                                  10    
HELIX   41  41 PRO L  123  SER L  143  1                                  21    
HELIX   42  42 CYS L  158  VAL L  176  1                                  19    
HELIX   43  43 ALA G    1  ALA G    6  1                                   6    
LINK         SG  CYS A  82                 CAC BLA A 166     1555   1555  1.80  
LINK         SG  CYS A 139                 CAC CYC A 168     1555   1555  1.80  
LINK         SG  CYS B  50                 CAA PUB B 179     1555   1555  1.79  
LINK         SG  CYS B  61                 CAD PUB B 179     1555   1555  1.81  
LINK         C   GLY B  71                 N   MEN B  72     1555   1555  1.33  
LINK         C   MEN B  72                 N   CYS B  73     1555   1555  1.33  
LINK         SG  CYS B  82                 CAC CYC B 181     1555   1555  1.81  
LINK         SG  CYS B 158                 CAC CYC B 183     1555   1555  1.82  
LINK         SG  CYS K  82                 CAC CYC K 166     1555   1555  1.83  
LINK         SG  CYS K 139                 CAC CYC K 168     1555   1555  1.80  
LINK         SG  CYS L  50                 CAA PUB L 179     1555   1555  1.81  
LINK         SG  CYS L  61                 CAD PUB L 179     1555   1555  1.81  
LINK         C   GLY L  71                 N   MEN L  72     1555   1555  1.33  
LINK         C   MEN L  72                 N   CYS L  73     1555   1555  1.33  
LINK         SG  CYS L  82                 CAC CYC L 181     1555   1555  1.80  
LINK         SG  CYS L 158                 CAC CYC L 183     1555   1555  1.81  
SITE     1 AC1  1 ASN A  68                                                     
SITE     1 AC2  2 GLY B 100  GLU B 164                                          
SITE     1 AC3 21 PHE A  60  ALA A  72  LYS A  78  LYS A  81                    
SITE     2 AC3 21 CYS A  82  ARG A  84  ASP A  85  HIS A  88                    
SITE     3 AC3 21 TYR A  89  TRP A 108  LEU A 120  LEU A 122                    
SITE     4 AC3 21 ALA A 126  TYR A 127  HOH A 372  SER B  57                    
SITE     5 AC3 21 ILE B  67  TYR B  74  THR B  75  ASN B  76                    
SITE     6 AC3 21 MET B  79                                                     
SITE     1 AC4 12 LEU A  44  ASN A  47  VAL A  51  GLU A  54                    
SITE     2 AC4 12 ARG A 137  CYS A 139  ARG A 142  ASP A 143                    
SITE     3 AC4 12 TYR A 152  SER B 147  GLN B 148  PUB B 179                    
SITE     1 AC5 12 CYC A 168  CYS B  50  ASP B  54  CYS B  61                    
SITE     2 AC5 12 GLU B  62  ARG B 129  ILE B 133  ALA B 137                    
SITE     3 AC5 12 ALA B 140  SER B 147  GLN B 148  ARG B 149                    
SITE     1 AC6 18 MET B  59  LEU B  66  MEN B  72  CYS B  73                    
SITE     2 AC6 18 ARG B  77  ARG B  78  ALA B  81  CYS B  82                    
SITE     3 AC6 18 ARG B  84  ASP B  85  ILE B  88  ARG B 108                    
SITE     4 AC6 18 LEU B 113  TYR B 117  LEU B 120  VAL B 122                    
SITE     5 AC6 18 PRO B 123  THR B 127                                          
SITE     1 AC7 17 LEU A  24  GLN A  28  ASP B  33  ASN B  35                    
SITE     2 AC7 17 LYS B  36  LEU B  38  ASP B  39  ILE B 142                    
SITE     3 AC7 17 SER B 143  ASN B 144  VAL B 153  ILE B 154                    
SITE     4 AC7 17 GLU B 155  GLY B 156  CYS B 158  ARG K  33                    
SITE     5 AC7 17 GLN K 147                                                     
SITE     1 AC8 22 PHE K  60  ALA K  72  LYS K  78  LYS K  81                    
SITE     2 AC8 22 CYS K  82  ARG K  84  ASP K  85  HIS K  88                    
SITE     3 AC8 22 TYR K  89  TRP K 108  TYR K 117  LEU K 120                    
SITE     4 AC8 22 LEU K 122  ALA K 126  TYR K 127  HOH K 326                    
SITE     5 AC8 22 HOH K 377  ILE L  67  TYR L  74  THR L  75                    
SITE     6 AC8 22 ASN L  76  MET L  79                                          
SITE     1 AC9 14 LEU K  44  ASN K  47  GLU K  54  ARG K 137                    
SITE     2 AC9 14 LEU K 138  CYS K 139  ARG K 142  ASP K 143                    
SITE     3 AC9 14 TYR K 152  GLU L 155  GLY L 156  CYS L 158                    
SITE     4 AC9 14 SER L 159  CYC L 183                                          
SITE     1 BC1 11 CYS L  50  ASP L  54  CYS L  61  GLU L  62                    
SITE     2 BC1 11 ARG L 129  ILE L 133  ALA L 136  ALA L 137                    
SITE     3 BC1 11 SER L 147  GLN L 148  HOH L 344                               
SITE     1 BC2 19 PHE H   2  MET L  59  LEU L  66  MEN L  72                    
SITE     2 BC2 19 CYS L  73  ARG L  77  ARG L  78  ALA L  81                    
SITE     3 BC2 19 CYS L  82  ARG L  84  ASP L  85  ILE L  88                    
SITE     4 BC2 19 ARG L 108  LEU L 113  LEU L 120  VAL L 122                    
SITE     5 BC2 19 PRO L 123  SER L 126  THR L 127                               
SITE     1 BC3 18 ARG A  33  GLN A 147  HOH A 369  LEU K  24                    
SITE     2 BC3 18 GLN K  28  CYC K 168  ASN L  35  LYS L  36                    
SITE     3 BC3 18 LEU L  38  ASP L  39  ILE L 142  SER L 143                    
SITE     4 BC3 18 ASN L 144  VAL L 153  ILE L 154  GLU L 155                    
SITE     5 BC3 18 GLY L 156  CYS L 158                                          
CRYST1  187.268  187.268   59.109  90.00  90.00 120.00 H 3          18          
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      0.005340  0.003083  0.000000        0.00000                         
SCALE2      0.000000  0.006166  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016918        0.00000