HEADER    PHOTOSYNTHESIS                          02-MAY-02   1JBO              
TITLE     THE 1.45A THREE-DIMENSIONAL STRUCTURE OF C-PHYCOCYANIN FROM THE       
TITLE    2 THERMOPHYLIC CYANOBACTERIUM SYNECHOCOCCUS ELONGATUS                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: C-PHYCOCYANIN ALPHA CHAIN;                                 
COMPND   3 CHAIN: A;                                                            
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: C-PHYCOCYANIN BETA CHAIN;                                  
COMPND   6 CHAIN: B                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SYNECHOCOCCUS ELONGATUS;                        
SOURCE   3 ORGANISM_TAXID: 32046;                                               
SOURCE   4 MOL_ID: 2;                                                           
SOURCE   5 ORGANISM_SCIENTIFIC: SYNECHOCOCCUS ELONGATUS;                        
SOURCE   6 ORGANISM_TAXID: 32046                                                
KEYWDS    PHOTOSYNTHESIS                                                        
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.NIELD,P.J.RIZKALLAH,J.BARBER,N.E.CHAYEN                             
REVDAT   4   16-AUG-23 1JBO    1       REMARK SEQADV LINK                       
REVDAT   3   13-JUL-11 1JBO    1       VERSN                                    
REVDAT   2   24-FEB-09 1JBO    1       VERSN                                    
REVDAT   1   18-MAR-03 1JBO    0                                                
JRNL        AUTH   J.NIELD,P.J.RIZKALLAH,J.BARBER,N.E.CHAYEN                    
JRNL        TITL   THE 1.45A THREE-DIMENSIONAL STRUCTURE OF C-PHYCOCYANIN FROM  
JRNL        TITL 2 THE THERMOPHILIC CYANOBACTERIUM SYNECHOCOCCUS ELONGATUS      
JRNL        REF    J.STRUCT.BIOL.                V. 141   149 2003              
JRNL        REFN                   ISSN 1047-8477                               
JRNL        PMID   12615541                                                     
JRNL        DOI    10.1016/S1047-8477(02)00609-3                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.45 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC                                               
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 56.70                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : NULL                           
REMARK   3   NUMBER OF REFLECTIONS             : 67533                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : THROUGHOUT                      
REMARK   3   FREE R VALUE TEST SET SELECTION  : RANDOM                          
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.146                           
REMARK   3   FREE R VALUE                     : 0.188                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 3617                            
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2498                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 129                                     
REMARK   3   SOLVENT ATOMS            : 474                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 16.34                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 16.47                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -1.31000                                             
REMARK   3    B22 (A**2) : -0.66000                                             
REMARK   3    B33 (A**2) : 0.00000                                              
REMARK   3    B12 (A**2) : -1.31000                                             
REMARK   3    B13 (A**2) : 1.97000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): NULL          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): NULL          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): NULL          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL          
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.039 ; NULL                
REMARK   3    ANGLE DISTANCE                  (A) : NULL  ; NULL                
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : NULL  ; NULL                
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : NULL  ; NULL                
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : NULL  ; NULL                
REMARK   3    MULTIPLE TORSION                (A) : NULL  ; NULL                
REMARK   3    H-BOND (X...Y)                  (A) : NULL  ; NULL                
REMARK   3    H-BOND (X-H...Y)                (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   CONFORMATIONAL TORSION ANGLE RESTRAINTS.                           
REMARK   3    SPECIFIED                 (DEGREES) : NULL  ; NULL                
REMARK   3    PLANAR                    (DEGREES) : NULL  ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : NULL  ; NULL                
REMARK   3    TRANSVERSE                (DEGREES) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.    RMS    SIGMA                
REMARK   3   MAIN-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   MAIN-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN BOND              (A**2) : NULL  ; NULL                 
REMARK   3   SIDE-CHAIN ANGLE             (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: WEIGHTED DIAGONAL MATRIX                  
REMARK   4                                                                      
REMARK   4 1JBO COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-MAY-02.                  
REMARK 100 THE DEPOSITION ID IS D_1000016093.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 04-JUL-00                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 6.1                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SRS                                
REMARK 200  BEAMLINE                       : PX14.1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.244                              
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSED GE(111)          
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 4                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA, CCP4 (SCALA)                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 71757                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.450                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 56.700                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY                : 6.800                              
REMARK 200  R MERGE                    (I) : 0.08800                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.7000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.45                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.53                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 3.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.26100                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.500                              
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 1CPC                                       
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 57.36                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.88                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULPHATE, MES, PH 6.1, VAPOR    
REMARK 280  DIFFUSION, HANGING DROP, TEMPERATURE 293K                           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: H 3 2                            
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   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z                                               
REMARK 290       6555   -X,-X+Y,-Z                                              
REMARK 290       7555   X+2/3,Y+1/3,Z+1/3                                       
REMARK 290       8555   -Y+2/3,X-Y+1/3,Z+1/3                                    
REMARK 290       9555   -X+Y+2/3,-X+1/3,Z+1/3                                   
REMARK 290      10555   Y+2/3,X+1/3,-Z+1/3                                      
REMARK 290      11555   X-Y+2/3,-Y+1/3,-Z+1/3                                   
REMARK 290      12555   -X+2/3,-X+Y+1/3,-Z+1/3                                  
REMARK 290      13555   X+1/3,Y+2/3,Z+2/3                                       
REMARK 290      14555   -Y+1/3,X-Y+2/3,Z+2/3                                    
REMARK 290      15555   -X+Y+1/3,-X+2/3,Z+2/3                                   
REMARK 290      16555   Y+1/3,X+2/3,-Z+2/3                                      
REMARK 290      17555   X-Y+1/3,-Y+2/3,-Z+2/3                                   
REMARK 290      18555   -X+1/3,-X+Y+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 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   7  1.000000  0.000000  0.000000       93.99750            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       54.26948            
REMARK 290   SMTRY3   7  0.000000  0.000000  1.000000       20.18067            
REMARK 290   SMTRY1   8 -0.500000 -0.866025  0.000000       93.99750            
REMARK 290   SMTRY2   8  0.866025 -0.500000  0.000000       54.26948            
REMARK 290   SMTRY3   8  0.000000  0.000000  1.000000       20.18067            
REMARK 290   SMTRY1   9 -0.500000  0.866025  0.000000       93.99750            
REMARK 290   SMTRY2   9 -0.866025 -0.500000  0.000000       54.26948            
REMARK 290   SMTRY3   9  0.000000  0.000000  1.000000       20.18067            
REMARK 290   SMTRY1  10 -0.500000  0.866025  0.000000       93.99750            
REMARK 290   SMTRY2  10  0.866025  0.500000  0.000000       54.26948            
REMARK 290   SMTRY3  10  0.000000  0.000000 -1.000000       20.18067            
REMARK 290   SMTRY1  11  1.000000  0.000000  0.000000       93.99750            
REMARK 290   SMTRY2  11  0.000000 -1.000000  0.000000       54.26948            
REMARK 290   SMTRY3  11  0.000000  0.000000 -1.000000       20.18067            
REMARK 290   SMTRY1  12 -0.500000 -0.866025  0.000000       93.99750            
REMARK 290   SMTRY2  12 -0.866025  0.500000  0.000000       54.26948            
REMARK 290   SMTRY3  12  0.000000  0.000000 -1.000000       20.18067            
REMARK 290   SMTRY1  13  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  13  0.000000  1.000000  0.000000      108.53896            
REMARK 290   SMTRY3  13  0.000000  0.000000  1.000000       40.36133            
REMARK 290   SMTRY1  14 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  14  0.866025 -0.500000  0.000000      108.53896            
REMARK 290   SMTRY3  14  0.000000  0.000000  1.000000       40.36133            
REMARK 290   SMTRY1  15 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  15 -0.866025 -0.500000  0.000000      108.53896            
REMARK 290   SMTRY3  15  0.000000  0.000000  1.000000       40.36133            
REMARK 290   SMTRY1  16 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  16  0.866025  0.500000  0.000000      108.53896            
REMARK 290   SMTRY3  16  0.000000  0.000000 -1.000000       40.36133            
REMARK 290   SMTRY1  17  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2  17  0.000000 -1.000000  0.000000      108.53896            
REMARK 290   SMTRY3  17  0.000000  0.000000 -1.000000       40.36133            
REMARK 290   SMTRY1  18 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2  18 -0.866025  0.500000  0.000000      108.53896            
REMARK 290   SMTRY3  18  0.000000  0.000000 -1.000000       40.36133            
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: THE BIOLOGICAL ASSEMBLY IS A HEXAMER GENERATED FROM THE      
REMARK 300 CONTENTS OF THE ASYMMETRIC UNIT BY APPLYING THE OPERATIONS: -Y,X-Y+  
REMARK 300 1,Z ; -X+Y-1,-X,Z ; Y-1,X+1,-Z ; X-Y,-Y+1,-Z ; -X-1,-X+Y,-Z          
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: DODECAMERIC                       
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DODECAMERIC                
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 60270 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 69500 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -507.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B                                  
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        0.00000            
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        0.00000            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   4  0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   4  0.000000  0.000000 -1.000000       60.54200            
REMARK 350   BIOMT1   5  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   5  0.000000  0.000000 -1.000000       60.54200            
REMARK 350   BIOMT1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 350   BIOMT2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 350   BIOMT3   6  0.000000  0.000000 -1.000000       60.54200            
REMARK 375                                                                      
REMARK 375 SPECIAL POSITION                                                     
REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS            
REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL          
REMARK 375 POSITIONS.                                                           
REMARK 375                                                                      
REMARK 375 ATOM RES CSSEQI                                                      
REMARK 375      HOH A 734  LIES ON A SPECIAL POSITION.                          
REMARK 375      HOH B 504  LIES ON A SPECIAL POSITION.                          
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     THR B  20    CG2                                                 
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   NH1  ARG B   110     O    HOH B   630              1.35            
REMARK 500   CZ   ARG B   110     O    HOH B   630              1.60            
REMARK 500   O    HOH A   551     O    HOH A   627              1.66            
REMARK 500   O    HOH A   645     O    HOH A   738              1.84            
REMARK 500   NH2  ARG A    42     O    HOH A   757              1.91            
REMARK 500   O    HOH B   626     O    HOH B   633              1.98            
REMARK 500   O    HOH A   648     O    HOH A   750              2.01            
REMARK 500   NH2  ARG B   110     O    HOH B   715              2.02            
REMARK 500   O    HOH A   605     O    HOH A   746              2.04            
REMARK 500   O    HOH A   624     O    HOH A   706              2.05            
REMARK 500   OG   SER A   125     O    HOH A   595              2.06            
REMARK 500   O    HOH B   664     O    HOH B   686              2.07            
REMARK 500   O    HOH B   664     O    HOH B   718              2.10            
REMARK 500   O    HOH B   601     O    HOH B   702              2.10            
REMARK 500   SG   CYS B   155     CAC  CYC B   503              2.15            
REMARK 500   OE1  GLU B   117     O    HOH B   671              2.17            
REMARK 500   OE2  GLU B   117     O    HOH B   696              2.17            
REMARK 500   SG   CYS B    84     CAC  CYC B   502              2.19            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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   O    HOH A   735     O    HOH A   735     6556     1.59            
REMARK 500   O    HOH A   561     O    HOH B   607     3555     1.85            
REMARK 500   O    HOH A   661     O    HOH B   617     5556     1.92            
REMARK 500   O    HOH A   628     O    HOH B   692     5556     2.19            
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    ALA A  11   CA    ALA A  11   CB     -0.137                       
REMARK 500    GLN A  15   CB    GLN A  15   CG     -0.179                       
REMARK 500    ASN A  21   N     ASN A  21   CA     -0.124                       
REMARK 500    MET A  38   SD    MET A  38   CE      0.508                       
REMARK 500    ASN A  47   CG    ASN A  47   OD1    -0.160                       
REMARK 500    LYS A  62   CB    LYS A  62   CG     -0.525                       
REMARK 500    LYS A  62   CG    LYS A  62   CD     -0.263                       
REMARK 500    GLN A  70   CG    GLN A  70   CD      0.229                       
REMARK 500    SER A 125   CB    SER A 125   OG      0.094                       
REMARK 500    GLU A 161   CD    GLU A 161   OE1     0.077                       
REMARK 500    TYR A 168   CE2   TYR A 168   CD2    -0.102                       
REMARK 500    GLU B  89   CD    GLU B  89   OE2     0.085                       
REMARK 500    GLU B  89   CD    GLU B  89   OE2    -0.071                       
REMARK 500    ALA B 172   CA    ALA B 172   CB      0.134                       
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    MET A   1   CG  -  SD  -  CE  ANGL. DEV. =  11.5 DEGREES          
REMARK 500    ASP A  13   CB  -  CG  -  OD2 ANGL. DEV. =   6.0 DEGREES          
REMARK 500    ARG A  42   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.2 DEGREES          
REMARK 500    ASP A  53   CB  -  CG  -  OD2 ANGL. DEV. =   6.8 DEGREES          
REMARK 500    TYR A  60   CB  -  CG  -  CD2 ANGL. DEV. =   5.9 DEGREES          
REMARK 500    ARG B  37   NE  -  CZ  -  NH1 ANGL. DEV. =   3.3 DEGREES          
REMARK 500    ASP B  39   CB  -  CG  -  OD1 ANGL. DEV. =   6.2 DEGREES          
REMARK 500    ARG B  57   NE  -  CZ  -  NH2 ANGL. DEV. =  -3.1 DEGREES          
REMARK 500    ASP B 108   CB  -  CG  -  OD2 ANGL. DEV. =   5.9 DEGREES          
REMARK 500    ARG B 116   NE  -  CZ  -  NH1 ANGL. DEV. =   3.7 DEGREES          
REMARK 500    ARG B 116   NE  -  CZ  -  NH2 ANGL. DEV. =  -4.2 DEGREES          
REMARK 500    ASP B 138   CB  -  CG  -  OD1 ANGL. DEV. =   6.3 DEGREES          
REMARK 500    ASP B 154   CB  -  CG  -  OD2 ANGL. DEV. =   7.7 DEGREES          
REMARK 500    ASP B 167   CB  -  CG  -  OD1 ANGL. DEV. =   6.7 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    ALA A  75       43.11   -101.38                                   
REMARK 500    LEU A 111      -47.19   -133.42                                   
REMARK 500    THR B  77      143.71     82.56                                   
REMARK 500    CYS B 111      -59.76   -122.52                                   
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 CYC A 501                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 502                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 503                 
DBREF  1JBO A    1   174  UNP    P50032   PHCA_SYNEL       1    162             
DBREF  1JBO B    1   174  UNP    P50033   PHCB_SYNEL       1    172             
SEQADV 1JBO MEN B   72  UNP  P50033    ASN    72 MODIFIED RESIDUE               
SEQRES   1 A  162  MET LYS THR PRO ILE THR GLU ALA ILE ALA ALA ALA ASP          
SEQRES   2 A  162  THR GLN GLY ARG PHE LEU SER ASN THR GLU LEU GLN ALA          
SEQRES   3 A  162  VAL ASP GLY ARG PHE LYS ARG ALA VAL ALA SER MET GLU          
SEQRES   4 A  162  ALA ALA ARG ALA LEU THR ASN ASN ALA GLN SER LEU ILE          
SEQRES   5 A  162  ASP GLY ALA ALA GLN ALA VAL TYR GLN LYS PHE PRO TYR          
SEQRES   6 A  162  THR THR THR MET GLN GLY SER GLN TYR ALA SER THR PRO          
SEQRES   7 A  162  GLU GLY LYS ALA LYS CYS ALA ARG ASP ILE GLY TYR TYR          
SEQRES   8 A  162  LEU ARG MET VAL THR TYR CYS LEU VAL ALA GLY GLY THR          
SEQRES   9 A  162  GLY PRO MET ASP GLU TYR LEU ILE ALA GLY LEU SER GLU          
SEQRES  10 A  162  ILE ASN SER THR PHE ASP LEU SER PRO SER TRP TYR ILE          
SEQRES  11 A  162  GLU ALA LEU LYS TYR ILE LYS ALA ASN HIS GLY LEU THR          
SEQRES  12 A  162  GLY GLN ALA ALA VAL GLU ALA ASN ALA TYR ILE ASP TYR          
SEQRES  13 A  162  ALA ILE ASN ALA LEU SER                                      
SEQRES   1 B  172  MET LEU ASP ALA PHE ALA LYS VAL VAL ALA GLN ALA ASP          
SEQRES   2 B  172  ALA ARG GLY GLU PHE LEU THR ASN ALA GLN PHE ASP ALA          
SEQRES   3 B  172  LEU SER ASN LEU VAL LYS GLU GLY ASN LYS ARG LEU ASP          
SEQRES   4 B  172  ALA VAL ASN ARG ILE THR SER ASN ALA SER THR ILE VAL          
SEQRES   5 B  172  ALA ASN ALA ALA ARG ALA LEU PHE ALA GLU GLN PRO GLN          
SEQRES   6 B  172  LEU ILE GLN PRO GLY GLY MEN ALA TYR THR ASN ARG ARG          
SEQRES   7 B  172  MET ALA ALA CYS LEU ARG ASP MET GLU ILE ILE LEU ARG          
SEQRES   8 B  172  TYR VAL THR TYR ALA ILE LEU ALA GLY ASP SER SER VAL          
SEQRES   9 B  172  LEU ASP ASP ARG CYS LEU ASN GLY LEU ARG GLU THR TYR          
SEQRES  10 B  172  GLN ALA LEU GLY THR PRO GLY SER SER VAL ALA VAL ALA          
SEQRES  11 B  172  ILE GLN LYS MET LYS ASP ALA ALA ILE ALA ILE ALA ASN          
SEQRES  12 B  172  ASP PRO ASN GLY ILE THR PRO GLY ASP CYS SER ALA LEU          
SEQRES  13 B  172  MET SER GLU ILE ALA GLY TYR PHE ASP ARG ALA ALA ALA          
SEQRES  14 B  172  ALA VAL ALA                                                  
MODRES 1JBO MEN B   72  ASN  N-METHYL ASPARAGINE                                
HET    MEN  B  72       9                                                       
HET    CYC  A 501      43                                                       
HET    CYC  B 502      43                                                       
HET    CYC  B 503      43                                                       
HETNAM     MEN N-METHYL ASPARAGINE                                              
HETNAM     CYC PHYCOCYANOBILIN                                                  
FORMUL   2  MEN    C5 H10 N2 O3                                                 
FORMUL   3  CYC    3(C33 H40 N4 O6)                                             
FORMUL   6  HOH   *474(H2 O)                                                    
HELIX    1   1 THR A    3  GLN A   15  1                                  13    
HELIX    2   2 SER A   20  ASN A   47  1                                  28    
HELIX    3   3 ASN A   47  PHE A   63  1                                  17    
HELIX    4   4 PRO A   64  THR A   68  5                                   5    
HELIX    5   5 THR A   77  GLY A  102  1                                  26    
HELIX    6   6 THR A  104  LEU A  111  1                                   8    
HELIX    7   7 GLY A  114  ASP A  123  1                                  10    
HELIX    8   8 SER A  125  HIS A  140  1                                  16    
HELIX    9   9 THR A  145  LEU A  173  1                                  19    
HELIX   10  10 ASP B    3  ARG B   15  1                                  13    
HELIX   11  12 GLU B   33  ASN B   47  1                                  15    
HELIX   12  13 ASN B   47  GLN B   63  1                                  17    
HELIX   13  14 PRO B   64  ILE B   67  5                                   4    
HELIX   14  15 THR B   77  GLY B  102  1                                  26    
HELIX   15  16 SER B  104  CYS B  111  1                                   8    
HELIX   16  17 GLY B  114  GLY B  123  1                                  10    
HELIX   17  18 PRO B  125  ASN B  145  1                                  21    
HELIX   18  19 CYS B  155  ALA B  174  1                                  20    
LINK         SG  CYS A  84                 CAC CYC A 501     1555   1555  1.96  
LINK         C   GLY B  71                 N   MEN B  72     1555   1555  1.34  
LINK         C   MEN B  72                 N   ALA B  75     1555   1555  1.37  
SITE     1 AC1 23 THR A  66  SER A  72  GLN A  73  TYR A  74                    
SITE     2 AC1 23 ALA A  75  LYS A  83  CYS A  84  ARG A  86                    
SITE     3 AC1 23 ASP A  87  TYR A 110  LEU A 124  TRP A 128                    
SITE     4 AC1 23 TYR A 129  HOH A 510  HOH A 513  HOH A 520                    
SITE     5 AC1 23 HOH A 530  HOH A 561  ARG B  57  ILE B  67                    
SITE     6 AC1 23 THR B  77  ASN B  78  HOH B 508                               
SITE     1 AC2 11 MEN B  72  ARG B  80  CYS B  84  ARG B  86                    
SITE     2 AC2 11 ASP B  87  ILE B  90  ARG B 110  LEU B 122                    
SITE     3 AC2 11 HOH B 613  HOH B 649  HOH B 663                               
SITE     1 AC3 23 LEU A  24  ASP A  28  ARG A  33  GLN A 147                    
SITE     2 AC3 23 HOH A 616  ASN B  35  LYS B  36  LEU B  38                    
SITE     3 AC3 23 ASP B  39  ASN B 145  ILE B 150  THR B 151                    
SITE     4 AC3 23 PRO B 152  GLY B 153  CYS B 155  HOH B 537                    
SITE     5 AC3 23 HOH B 578  HOH B 600  HOH B 615  HOH B 634                    
SITE     6 AC3 23 HOH B 651  HOH B 692  HOH B 711                               
CRYST1  187.995  187.995   60.542  90.00  90.00 120.00 H 3 2        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      0.005319  0.003071  0.000000        0.00000                         
SCALE2      0.000000  0.006142  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016517        0.00000