HEADER    ELECTRON TRANSPORT                      24-NOV-05   2C7J              
TITLE     PHYCOERYTHROCYANIN FROM MASTIGOCLADUS LAMINOSUS, 295 K, 3.0 A         
CAVEAT     2C7J    CYC A 1163 HAS WRONG CHIRALITY AT ATOM C2C CYC A 1163 HAS    
CAVEAT   2 2C7J    WRONG CHIRALITY AT ATOM C3C                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: PHYCOERYTHROCYANIN ALPHA CHAIN;                            
COMPND   3 CHAIN: A;                                                            
COMPND   4 MOL_ID: 2;                                                           
COMPND   5 MOLECULE: PHYCOERYTHROCYANIN BETA CHAIN;                             
COMPND   6 CHAIN: B                                                             
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: MASTIGOCLADUS LAMINOSUS;                        
SOURCE   3 ORGANISM_TAXID: 83541;                                               
SOURCE   4 STRAIN: FISCHERELLA PCC7603;                                         
SOURCE   5 MOL_ID: 2;                                                           
SOURCE   6 ORGANISM_SCIENTIFIC: MASTIGOCLADUS LAMINOSUS;                        
SOURCE   7 ORGANISM_TAXID: 83541;                                               
SOURCE   8 STRAIN: FISCHERELLA PCC7603                                          
KEYWDS    PHYCOERYTHROCYANIN, PHYCOVIOLOBILIN, PHYCOCYANOBILIN, BILE PIGMENT,   
KEYWDS   2 CHROMOPHORE, ELECTRON TRANSPORT, PHOTOSYNTHESIS, PHYCOBILISOME       
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.SCHMIDT,A.KRASSELT,W.REUTER                                         
REVDAT  10   05-MAR-25 2C7J    1       CAVEAT COMPND SOURCE REMARK              
REVDAT  10 2                   1       DBREF  HET    HETNAM FORMUL              
REVDAT  10 3                   1       LINK   ATOM                              
REVDAT   9   23-OCT-24 2C7J    1       REMARK                                   
REVDAT   8   01-MAY-24 2C7J    1       REMARK                                   
REVDAT   7   08-MAY-19 2C7J    1       REMARK                                   
REVDAT   6   03-APR-19 2C7J    1       REMARK LINK                              
REVDAT   5   28-JUN-17 2C7J    1       REMARK                                   
REVDAT   4   10-DEC-14 2C7J    1       TITLE  KEYWDS JRNL   REMARK              
REVDAT   4 2                   1       VERSN  FORMUL MASTER                     
REVDAT   3   24-FEB-09 2C7J    1       VERSN                                    
REVDAT   2   28-JUN-06 2C7J    1       REMARK HET    HETNAM FORMUL              
REVDAT   2 2                   1       LINK   SITE   TER    HETATM              
REVDAT   2 3                   1       CONECT                                   
REVDAT   1   25-JAN-06 2C7J    0                                                
JRNL        AUTH   M.SCHMIDT,A.KRASSELT,W.REUTER                                
JRNL        TITL   LOCAL PROTEIN FLEXIBILITY AS A PREREQUISITE FOR REVERSIBLE   
JRNL        TITL 2 CHROMOPHORE ISOMERIZATION IN ALFA- PHYCOERYTHROCYANIN        
JRNL        REF    BIOCHIM.BIOPHYS.ACTA          V.1764    55 2006              
JRNL        REFN                   ISSN 0006-3002                               
JRNL        PMID   16377266                                                     
JRNL        DOI    10.1016/J.BBAPAP.2005.10.022                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.00 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : CNS 1.1                                              
REMARK   3   AUTHORS     : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-              
REMARK   3               : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,              
REMARK   3               : READ,RICE,SIMONSON,WARREN                            
REMARK   3                                                                      
REMARK   3  REFINEMENT TARGET : MAXIMUM LIKELIHOOD                              
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.00                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 51.30                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   DATA CUTOFF HIGH         (ABS(F)) : 10000.000                      
REMARK   3   DATA CUTOFF LOW          (ABS(F)) : NULL                           
REMARK   3   COMPLETENESS (WORKING+TEST)   (%) : 83.0                           
REMARK   3   NUMBER OF REFLECTIONS             : 9690                           
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 SET) : 0.189                           
REMARK   3   FREE R VALUE                     : 0.260                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 8.600                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1001                            
REMARK   3   ESTIMATED ERROR OF FREE R VALUE  : NULL                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 8                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 3.00                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 3.14                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 48.10                        
REMARK   3   REFLECTIONS IN BIN    (WORKING SET) : 613                          
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3010                       
REMARK   3   BIN FREE R VALUE                    : 0.3200                       
REMARK   3   BIN FREE R VALUE TEST SET SIZE  (%) : 5.30                         
REMARK   3   BIN FREE R VALUE TEST SET COUNT     : 76                           
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE : NULL                         
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2534                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 129                                     
REMARK   3   SOLVENT ATOMS            : 149                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 3.78600                                              
REMARK   3    B22 (A**2) : 3.78600                                              
REMARK   3    B33 (A**2) : -7.57200                                             
REMARK   3    B12 (A**2) : -8.47700                                             
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : 0.34                            
REMARK   3   ESD FROM SIGMAA              (A) : 0.48                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : 5.00                            
REMARK   3                                                                      
REMARK   3  CROSS-VALIDATED ESTIMATED COORDINATE ERROR.                         
REMARK   3   ESD FROM C-V LUZZATI PLOT    (A) : 0.60                            
REMARK   3   ESD FROM C-V SIGMAA          (A) : 0.74                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   BOND LENGTHS                 (A) : 0.007                           
REMARK   3   BOND ANGLES            (DEGREES) : 1.208                           
REMARK   3   DIHEDRAL ANGLES        (DEGREES) : 19.05                           
REMARK   3   IMPROPER ANGLES        (DEGREES) : 1.011                           
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL MODEL : 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  BULK SOLVENT MODELING.                                              
REMARK   3   METHOD USED : NULL                                                 
REMARK   3   KSOL        : 0.27                                                 
REMARK   3   BSOL        : 39.88                                                
REMARK   3                                                                      
REMARK   3  NCS MODEL : NULL                                                    
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS.                         RMS   SIGMA/WEIGHT          
REMARK   3   GROUP  1  POSITIONAL            (A) : NULL  ; NULL                 
REMARK   3   GROUP  1  B-FACTOR           (A**2) : NULL  ; NULL                 
REMARK   3                                                                      
REMARK   3  PARAMETER FILE  1  : PROTEIN.PARAM                                  
REMARK   3  PARAMETER FILE  2  : WATER.PARAM                                    
REMARK   3  PARAMETER FILE  3  : NULL                                           
REMARK   3  TOPOLOGY FILE  1   : PROTEIN.TOP                                    
REMARK   3  TOPOLOGY FILE  2   : WATER.TOP                                      
REMARK   3  TOPOLOGY FILE  3   : NULL                                           
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: CHROMOPHORES WERE ATTACHED TO CYSTEINS    
REMARK   3  WITH RESTRAINTS DERIVED FROM METHIONINE AND REFINED AS THEY WERE    
REMARK   3  REGULAR AMINO ACIDS.                                                
REMARK   4                                                                      
REMARK   4 2C7J COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 24-NOV-05.                  
REMARK 100 THE DEPOSITION ID IS D_1290026534.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : NULL                               
REMARK 200  TEMPERATURE           (KELVIN) : 295.0                              
REMARK 200  PH                             : 7.90                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : N                                  
REMARK 200  RADIATION SOURCE               : ROTATING ANODE                     
REMARK 200  BEAMLINE                       : NULL                               
REMARK 200  X-RAY GENERATOR MODEL          : ENRAF-NONIUS FR591                 
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.5418                             
REMARK 200  MONOCHROMATOR                  : GRAPHITE                           
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : AREA DETECTOR                      
REMARK 200  DETECTOR MANUFACTURER          : SIEMENS, MULTIWIRE                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : SAINT                              
REMARK 200  DATA SCALING SOFTWARE          : SAINT, SCALA                       
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 9690                               
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.000                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 51.300                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 85.7                               
REMARK 200  DATA REDUNDANCY                : 3.000                              
REMARK 200  R MERGE                    (I) : 0.13000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 5.0000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.00                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.16                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 61.2                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 1.50                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.33000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.200                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: BEAST                                                 
REMARK 200 STARTING MODEL: SEE REMARK                                           
REMARK 200                                                                      
REMARK 200 REMARK: PHYCOERYTHROCYANIN ALFA-BETA PUBLISHED BY DUERRING ET AL.    
REMARK 200  1992 WAS USED AS A SEARCH MODEL                                     
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 67.50                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.80                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 5% PEG 4000, 5 MM POTASSIUM PHOSPHATE,   
REMARK 280  PH 8.5, 4 DEG C, 4 MICRO-LITER OF 20 MG/ML PROTEIN, HANGING DROP,   
REMARK 280  PH 7.90, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K            
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 63                             
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,-Y,Z+1/2                                             
REMARK 290       5555   Y,-X+Y,Z+1/2                                            
REMARK 290       6555   X-Y,X,Z+1/2                                             
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        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000  1.000000       20.10000            
REMARK 290   SMTRY1   5  0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   5 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000       20.10000            
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       20.10000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 350                                                                      
REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN           
REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE                
REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS          
REMARK 350 GIVEN BELOW.  BOTH NON-CRYSTALLOGRAPHIC AND                          
REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN.                               
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 1                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: HEXAMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: HEXAMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 25060 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 40250 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -217.1 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       78.37250            
REMARK 350   BIOMT2   2  0.866025 -0.500000  0.000000      135.74515            
REMARK 350   BIOMT3   2  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   3 -0.500000  0.866025  0.000000      -78.37250            
REMARK 350   BIOMT2   3 -0.866025 -0.500000  0.000000      135.74515            
REMARK 350   BIOMT3   3  0.000000  0.000000  1.000000        0.00000            
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  46      -81.39    -90.07                                   
REMARK 500    ASN A  47       47.52    -84.73                                   
REMARK 500    THR A  67       73.89   -110.98                                   
REMARK 500    GLN A  68      -65.07    168.46                                   
REMARK 500    GLN A  70      102.40    -49.49                                   
REMARK 500    GLN A  73       27.41   -149.85                                   
REMARK 500    ALA A 121      -38.17   -171.31                                   
REMARK 500    THR A 143      -90.28    -44.26                                   
REMARK 500    ARG B  63       78.83   -112.04                                   
REMARK 500    HIS B  75      135.82     78.95                                   
REMARK 500    CYS B 109      -50.20   -126.91                                   
REMARK 500    LEU B 120        8.96   -165.23                                   
REMARK 500    CYS B 153       57.00   -114.52                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2002        DISTANCE =  9.99 ANGSTROMS                       
REMARK 525    HOH A2003        DISTANCE =  8.29 ANGSTROMS                       
REMARK 525    HOH A2004        DISTANCE =  7.59 ANGSTROMS                       
REMARK 525    HOH A2006        DISTANCE =  6.82 ANGSTROMS                       
REMARK 525    HOH A2013        DISTANCE =  6.99 ANGSTROMS                       
REMARK 525    HOH A2016        DISTANCE =  7.59 ANGSTROMS                       
REMARK 525    HOH A2021        DISTANCE =  6.40 ANGSTROMS                       
REMARK 525    HOH A2029        DISTANCE =  6.64 ANGSTROMS                       
REMARK 525    HOH A2041        DISTANCE =  6.13 ANGSTROMS                       
REMARK 525    HOH A2042        DISTANCE =  5.94 ANGSTROMS                       
REMARK 525    HOH B2001        DISTANCE =  6.30 ANGSTROMS                       
REMARK 525    HOH B2002        DISTANCE =  6.32 ANGSTROMS                       
REMARK 525    HOH B2003        DISTANCE =  8.08 ANGSTROMS                       
REMARK 525    HOH B2010        DISTANCE =  6.16 ANGSTROMS                       
REMARK 525    HOH B2015        DISTANCE =  6.18 ANGSTROMS                       
REMARK 525    HOH B2016        DISTANCE =  6.21 ANGSTROMS                       
REMARK 525    HOH B2032        DISTANCE =  6.17 ANGSTROMS                       
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 1163                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 1173                
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYC B 1174                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 2C7K   RELATED DB: PDB                                   
REMARK 900 LAUE STRUCTURE OF PHYCOERYHTROCYANIN FROM MASTIGOCLADUS LAMINOSUS    
REMARK 900 RELATED ID: 2C7L   RELATED DB: PDB                                   
REMARK 900 LOW TEMPERATURE STRUCTURE OF PHYCOERYTHROCYANIN FROM MASTIGOCLADUS   
REMARK 900 LAMINOSUS                                                            
DBREF  2C7J A    1   162  UNP    P00309   PHEA_MASLA       1    162             
DBREF  2C7J B    1   172  UNP    P00313   PHEB_MASLA       1    172             
SEQRES   1 A  162  MET LYS THR PRO LEU THR GLU ALA ILE ALA ALA ALA ASP          
SEQRES   2 A  162  LEU ARG GLY SER TYR LEU SER ASN THR GLU LEU GLN ALA          
SEQRES   3 A  162  VAL PHE GLY ARG PHE ASN ARG ALA ARG ALA GLY LEU GLU          
SEQRES   4 A  162  ALA ALA ARG ALA PHE ALA ASN ASN GLY LYS LYS TRP ALA          
SEQRES   5 A  162  GLU ALA ALA ALA ASN HIS VAL TYR GLN LYS PHE PRO TYR          
SEQRES   6 A  162  THR THR GLN MET GLN GLY PRO GLN TYR ALA SER THR PRO          
SEQRES   7 A  162  GLU GLY LYS ALA LYS CYS VAL ARG ASP ILE ASP HIS TYR          
SEQRES   8 A  162  LEU ARG THR ILE SER TYR CYS CYS VAL VAL GLY GLY THR          
SEQRES   9 A  162  GLY PRO LEU ASP ASP TYR VAL VAL ALA GLY LEU LYS GLU          
SEQRES  10 A  162  PHE ASN SER ALA LEU GLY LEU SER PRO SER TRP TYR ILE          
SEQRES  11 A  162  ALA ALA LEU GLU PHE VAL ARG ASP ASN HIS GLY LEU THR          
SEQRES  12 A  162  GLY ASP VAL ALA GLY GLU ALA ASN THR TYR ILE ASN TYR          
SEQRES  13 A  162  ALA ILE ASN ALA LEU SER                                      
SEQRES   1 B  172  MET LEU ASP ALA PHE SER ARG VAL VAL GLU GLN ALA ASP          
SEQRES   2 B  172  LYS LYS GLY ALA TYR LEU SER ASN ASP GLU ILE ASN ALA          
SEQRES   3 B  172  LEU GLN ALA ILE VAL ALA ASP SER ASN LYS ARG LEU ASP          
SEQRES   4 B  172  VAL VAL ASN ARG LEU THR SER ASN ALA SER SER ILE VAL          
SEQRES   5 B  172  ALA ASN ALA TYR ARG ALA LEU VAL ALA GLU ARG PRO GLN          
SEQRES   6 B  172  VAL PHE ASN PRO GLY GLY PRO CYS PHE HIS HIS ARG ASN          
SEQRES   7 B  172  GLN ALA ALA CYS ILE ARG ASP LEU GLY PHE ILE LEU ARG          
SEQRES   8 B  172  TYR VAL THR TYR SER VAL LEU ALA GLY ASP THR SER VAL          
SEQRES   9 B  172  MET ASP ASP ARG CYS LEU ASN GLY LEU ARG GLU THR TYR          
SEQRES  10 B  172  GLN ALA LEU GLY THR PRO GLY ASP ALA VAL ALA SER GLY          
SEQRES  11 B  172  ILE LYS LYS MET LYS GLU ALA ALA LEU LYS ILE ALA ASN          
SEQRES  12 B  172  ASP PRO ASN GLY ILE THR LYS GLY ASP CYS SER GLN LEU          
SEQRES  13 B  172  MET SER GLU LEU ALA SER TYR PHE ASP ARG ALA ALA ALA          
SEQRES  14 B  172  ALA VAL ALA                                                  
HET    CYC  A1163      43                                                       
HET    CYC  B1173      43                                                       
HET    CYC  B1174      43                                                       
HETNAM     CYC PHYCOCYANOBILIN                                                  
FORMUL   3  CYC    3(C33 H40 N4 O6)                                             
FORMUL   6  HOH   *149(H2 O)                                                    
HELIX    1   1 THR A    3  ARG A   15  1                                  13    
HELIX    2   2 SER A   20  PHE A   31  1                                  12    
HELIX    3   3 ARG A   33  GLY A   48  1                                  16    
HELIX    4   4 GLY A   48  PHE A   63  1                                  16    
HELIX    5   5 PRO A   64  THR A   67  5                                   4    
HELIX    6   6 THR A   77  GLY A  102  1                                  26    
HELIX    7   7 THR A  104  VAL A  111  1                                   8    
HELIX    8   8 GLY A  114  SER A  120  1                                   7    
HELIX    9   9 SER A  125  HIS A  140  1                                  16    
HELIX   10  10 ASP A  145  SER A  162  1                                  18    
HELIX   11  11 ASP B    3  LYS B   15  1                                  13    
HELIX   12  12 SER B   20  ASP B   33  1                                  14    
HELIX   13  13 ASP B   33  ASN B   47  1                                  15    
HELIX   14  14 ASN B   47  ARG B   63  1                                  17    
HELIX   15  15 PRO B   64  ASN B   68  5                                   5    
HELIX   16  16 HIS B   75  GLY B  100  1                                  26    
HELIX   17  17 THR B  102  CYS B  109  1                                   8    
HELIX   18  18 GLY B  112  ALA B  119  1                                   8    
HELIX   19  19 GLY B  124  ASN B  143  1                                  20    
HELIX   20  20 CYS B  153  ALA B  170  1                                  18    
LINK         SG  CYS A  84                 CAC CYC A1163     1555   1555  1.74  
LINK         SG  CYS B  82                 CAC CYC B1173     1555   1555  1.75  
LINK         SG  CYS B 153                 CAC CYC B1174     1555   1555  1.72  
SITE     1 AC1 20 THR A  66  PRO A  72  GLN A  73  TYR A  74                    
SITE     2 AC1 20 ALA A  75  LYS A  83  CYS A  84  ARG A  86                    
SITE     3 AC1 20 ASP A  87  PHE A 118  LEU A 122  LEU A 124                    
SITE     4 AC1 20 TRP A 128  TYR A 129  TYR B  56  ARG B  57                    
SITE     5 AC1 20 PHE B  74  HIS B  75  HIS B  76  GLN B  79                    
SITE     1 AC2 13 VAL B  66  CYS B  73  ARG B  77  ASN B  78                    
SITE     2 AC2 13 CYS B  82  ARG B  84  ASP B  85  LEU B  86                    
SITE     3 AC2 13 PHE B  88  ARG B 108  LEU B 113  VAL B 127                    
SITE     4 AC2 13 HOH B2080                                                     
SITE     1 AC3 18 GLN A  25  ASN B  35  LYS B  36  ASP B  39                    
SITE     2 AC3 18 VAL B  40  ALA B 142  ASN B 143  ILE B 148                    
SITE     3 AC3 18 THR B 149  LYS B 150  GLY B 151  ASP B 152                    
SITE     4 AC3 18 CYS B 153  SER B 154  SER B 158  ALA B 161                    
SITE     5 AC3 18 HOH B2024  HOH B2033                                          
CRYST1  156.745  156.745   40.200  90.00  90.00 120.00 P 63          6          
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      0.006380  0.003683  0.000000        0.00000                         
SCALE2      0.000000  0.007367  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.024876        0.00000