HEADER    LUMINESCENT PROTEIN                     30-JUN-05   2A50               
TITLE     FLUORESCENT PROTEIN ASFP595, WT, OFF-STATE                             
COMPND    MOL_ID: 1;                                                             
COMPND   2 MOLECULE: GFP-LIKE NON-FLUORESCENT CHROMOPROTEIN FP595 CHAIN 1;       
COMPND   3 CHAIN: A, C;                                                          
COMPND   4 SYNONYM: ASFP595;                                                     
COMPND   5 ENGINEERED: YES;                                                      
COMPND   6 MOL_ID: 2;                                                            
COMPND   7 MOLECULE: GFP-LIKE NON-FLUORESCENT CHROMOPROTEIN FP595 CHAIN 2;       
COMPND   8 CHAIN: B, D;                                                          
COMPND   9 SYNONYM: ASFP595;                                                     
COMPND  10 ENGINEERED: YES                                                       
SOURCE    MOL_ID: 1;                                                             
SOURCE   2 ORGANISM_SCIENTIFIC: ANEMONIA SULCATA;                                
SOURCE   3 ORGANISM_COMMON: SNAKE-LOCKS SEA ANEMONE;                             
SOURCE   4 ORGANISM_TAXID: 6108;                                                 
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21CODONPLUS;                              
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                               
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PQE30;                                     
SOURCE  10 MOL_ID: 2;                                                            
SOURCE  11 ORGANISM_SCIENTIFIC: ANEMONIA SULCATA;                                
SOURCE  12 ORGANISM_COMMON: SNAKE-LOCKS SEA ANEMONE;                             
SOURCE  13 ORGANISM_TAXID: 6108;                                                 
SOURCE  14 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                  
SOURCE  15 EXPRESSION_SYSTEM_TAXID: 562;                                         
SOURCE  16 EXPRESSION_SYSTEM_STRAIN: BL21CODONPLUS;                              
SOURCE  17 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                               
SOURCE  18 EXPRESSION_SYSTEM_PLASMID: PQE30                                      
KEYWDS    ASCP, FLUORESCENT PROTEIN, CHROMOPROTEIN, PHOTOCHROMIC PROTEIN,        
KEYWDS   2 REVERSIBLE PHOTOSWITCH, LUMINESCENT PROTEIN                           
EXPDTA    X-RAY DIFFRACTION                                                      
AUTHOR    M.ANDRESEN,M.C.WAHL,A.C.STIEL,F.GRAETER,L.SCHAEFER,S.TROWITZSCH,       
AUTHOR   2 G.WEBER,C.EGGELING,H.GRUBMUELLER,S.W.HELL,S.JAKOBS                    
REVDAT   5   13-JUL-11 2A50    1       VERSN                                     
REVDAT   4   30-JUN-09 2A50    1       SEQADV                                    
REVDAT   3   24-FEB-09 2A50    1       VERSN                                     
REVDAT   2   20-SEP-05 2A50    1       JRNL                                      
REVDAT   1   16-AUG-05 2A50    0                                                 
JRNL        AUTH   M.ANDRESEN,M.C.WAHL,A.C.STIEL,F.GRAETER,L.SCHAEFER,           
JRNL        AUTH 2 S.TROWITZSCH,G.WEBER,C.EGGELING,H.GRUBMUELLER,S.W.HELL,       
JRNL        AUTH 3 S.JAKOBS                                                      
JRNL        TITL   STRUCTURE AND MECHANISM OF THE REVERSIBLE PHOTOSWITCH OF A    
JRNL        TITL 2 FLUORESCENT PROTEIN                                           
JRNL        REF    PROC.NATL.ACAD.SCI.USA        V. 102 13070 2005               
JRNL        REFN                   ISSN 0027-8424                                
JRNL        PMID   16135569                                                      
JRNL        DOI    10.1073/PNAS.0502772102                                       
REMARK   2                                                                       
REMARK   2 RESOLUTION.    1.30 ANGSTROMS.                                        
REMARK   3                                                                       
REMARK   3 REFINEMENT.                                                           
REMARK   3   PROGRAM     : REFMAC 5.2.0005                                       
REMARK   3   AUTHORS     : MURSHUDOV,VAGIN,DODSON                                
REMARK   3                                                                       
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                             
REMARK   3                                                                       
REMARK   3  DATA USED IN REFINEMENT.                                             
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.30                            
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 20.00                           
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.6                            
REMARK   3   NUMBER OF REFLECTIONS             : 105329                          
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) : 0.154                            
REMARK   3   R VALUE            (WORKING SET) : 0.153                            
REMARK   3   FREE R VALUE                     : 0.179                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 5551                             
REMARK   3                                                                       
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                   
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                            
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.30                          
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.33                          
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 7752                          
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.86                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2120                        
REMARK   3   BIN FREE R VALUE SET COUNT          : 375                           
REMARK   3   BIN FREE R VALUE                    : 0.2550                        
REMARK   3                                                                       
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                     
REMARK   3   PROTEIN ATOMS            : 3635                                     
REMARK   3   NUCLEIC ACID ATOMS       : 0                                        
REMARK   3   HETEROGEN ATOMS          : 0                                        
REMARK   3   SOLVENT ATOMS            : 659                                      
REMARK   3                                                                       
REMARK   3  B VALUES.                                                            
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                            
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 20.37                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                        
REMARK   3    B11 (A**2) : 0.52000                                               
REMARK   3    B22 (A**2) : -1.32000                                              
REMARK   3    B33 (A**2) : 0.80000                                               
REMARK   3    B12 (A**2) : 0.00000                                               
REMARK   3    B13 (A**2) : 0.00000                                               
REMARK   3    B23 (A**2) : 0.00000                                               
REMARK   3                                                                       
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                  
REMARK   3   ESU BASED ON R VALUE                            (A): 0.052          
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.048          
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.031          
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.615          
REMARK   3                                                                       
REMARK   3 CORRELATION COEFFICIENTS.                                             
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.976                          
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.972                          
REMARK   3                                                                       
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT       
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  3829 ; 0.012 ; 0.022        
REMARK   3   BOND LENGTHS OTHERS               (A):  NULL ;  NULL ;  NULL        
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  5187 ; 1.596 ; 1.966        
REMARK   3   BOND ANGLES OTHERS          (DEGREES):  NULL ;  NULL ;  NULL        
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   477 ; 6.879 ; 5.000        
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   163 ;35.891 ;23.742        
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):   635 ;12.377 ;15.000        
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    15 ;17.771 ;15.000        
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   531 ; 0.102 ; 0.200        
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  2963 ; 0.007 ; 0.020        
REMARK   3   GENERAL PLANES OTHERS             (A):  NULL ;  NULL ;  NULL        
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1767 ; 0.213 ; 0.200        
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL        
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  2572 ; 0.305 ; 0.200        
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL        
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   472 ; 0.129 ; 0.200        
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL        
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL        
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL        
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    97 ; 0.174 ; 0.200        
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL        
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    57 ; 0.170 ; 0.200        
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL        
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL        
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL        
REMARK   3                                                                       
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT       
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  2437 ; 2.501 ; 2.000        
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL        
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  3782 ; 3.247 ; 3.000        
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  1634 ; 2.806 ; 2.000        
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  1405 ; 3.702 ; 3.000        
REMARK   3                                                                       
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT        
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  4071 ; 2.102 ; 3.000        
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):   659 ; 7.940 ; 3.000        
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  3715 ; 6.521 ; 3.000        
REMARK   3                                                                       
REMARK   3  NCS RESTRAINTS STATISTICS                                            
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                               
REMARK   3                                                                       
REMARK   3  TLS DETAILS                                                          
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                        
REMARK   3                                                                       
REMARK   3  BULK SOLVENT MODELLING.                                              
REMARK   3   METHOD USED : MASK                                                  
REMARK   3   PARAMETERS FOR MASK CALCULATION                                     
REMARK   3   VDW PROBE RADIUS   : 1.20                                           
REMARK   3   ION PROBE RADIUS   : 0.80                                           
REMARK   3   SHRINKAGE RADIUS   : 0.80                                           
REMARK   3                                                                       
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING    
REMARK   3  POSITIONS                                                            
REMARK   4                                                                       
REMARK   4 2A50 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                          
REMARK 100                                                                       
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 05-JUL-05.                   
REMARK 100 THE RCSB ID CODE IS RCSB033495.                                       
REMARK 200                                                                       
REMARK 200 EXPERIMENTAL DETAILS                                                  
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                   
REMARK 200  DATE OF DATA COLLECTION        : 19-JUL-04                           
REMARK 200  TEMPERATURE           (KELVIN) : 100                                 
REMARK 200  PH                             : 7.1                                 
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                   
REMARK 200                                                                       
REMARK 200  SYNCHROTRON              (Y/N) : Y                                   
REMARK 200  RADIATION SOURCE               : MPG/DESY, HAMBURG                   
REMARK 200  BEAMLINE                       : BW6                                 
REMARK 200  X-RAY GENERATOR MODEL          : NULL                                
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                   
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.05                                
REMARK 200  MONOCHROMATOR                  : MIRRORS                             
REMARK 200  OPTICS                         : NULL                                
REMARK 200                                                                       
REMARK 200  DETECTOR TYPE                  : CCD                                 
REMARK 200  DETECTOR MANUFACTURER          : MARRESEARCH                         
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : DENZO                               
REMARK 200  DATA SCALING SOFTWARE          : SCALEPACK                           
REMARK 200                                                                       
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 111048                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.300                               
REMARK 200  RESOLUTION RANGE LOW       (A) : 30.000                              
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                               
REMARK 200                                                                       
REMARK 200 OVERALL.                                                              
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.7                                
REMARK 200  DATA REDUNDANCY                : NULL                                
REMARK 200  R MERGE                    (I) : NULL                                
REMARK 200  R SYM                      (I) : NULL                                
REMARK 200   FOR THE DATA SET  : NULL                                
REMARK 200                                                                       
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.30                      
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.32                      
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.8                                
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                                
REMARK 200  R MERGE FOR SHELL          (I) : NULL                                
REMARK 200  R SYM FOR SHELL            (I) : NULL                                
REMARK 200   FOR SHELL         : NULL                                
REMARK 200                                                                       
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                               
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT         
REMARK 200 SOFTWARE USED: MOLREP                                                 
REMARK 200 STARTING MODEL: NULL                                                  
REMARK 200                                                                       
REMARK 200 REMARK: NULL                                                          
REMARK 280                                                                       
REMARK 280 CRYSTAL                                                               
REMARK 280 SOLVENT CONTENT, VS   (%): 40.40                                      
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.10                      
REMARK 280                                                                       
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 3350, NACL, PH 7.1, VAPOR             
REMARK 280  DIFFUSION, SITTING DROP, TEMPERATURE 293K                            
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                             
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                          
REMARK 290                                                                       
REMARK 290      SYMOP   SYMMETRY                                                 
REMARK 290     NNNMMM   OPERATOR                                                 
REMARK 290       1555   X,Y,Z                                                    
REMARK 290       2555   -X,-Y,Z+1/2                                              
REMARK 290       3555   -X,Y,-Z+1/2                                              
REMARK 290       4555   X,-Y,-Z                                                  
REMARK 290       5555   X+1/2,Y+1/2,Z                                            
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                      
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                      
REMARK 290       8555   X+1/2,-Y+1/2,-Z                                          
REMARK 290                                                                       
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                      
REMARK 290           MMM -> TRANSLATION VECTOR                                   
REMARK 290                                                                       
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                             
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM              
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                 
REMARK 290 RELATED MOLECULES.                                                    
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       47.05400             
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000             
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000             
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       47.05400             
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        0.00000             
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       38.08700             
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       63.25000             
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000             
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       38.08700             
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       63.25000             
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000       47.05400             
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       38.08700             
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       63.25000             
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000       47.05400             
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       38.08700             
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       63.25000             
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000             
REMARK 290                                                                       
REMARK 290 REMARK: NULL                                                          
REMARK 300                                                                       
REMARK 300 BIOMOLECULE: 1                                                        
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                 
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                   
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON                
REMARK 300 BURIED SURFACE AREA.                                                  
REMARK 300 REMARK: THE TETRAMER (BIOLOGICAL ASSEMBLY) IS GENERATED BY THE        
REMARK 300 CRYSTALLOGRAPHIC TWOFOLD AXIS -X,Y,-Z+1/2 AND TRANSLATION BY ONE      
REMARK 300 UNIT CELL LENGTH ALONG X (ALTERNATIVE BY THE EQUIVALENT AXIS          
REMARK 300 PARALLEL TO Y LOCATED AT 1/2X, 1/4Z)                                  
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: OCTAMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: OCTAMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                               
REMARK 350 TOTAL BURIED SURFACE AREA: 30630 ANGSTROM**2                          
REMARK 350 SURFACE AREA OF THE COMPLEX: 31750 ANGSTROM**2                        
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -167.0 KCAL/MOL                        
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, D                             
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 -1.000000  0.000000  0.000000       76.17400             
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000             
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000       47.05400             
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 B 339  LIES ON A SPECIAL POSITION.                           
REMARK 375      HOH D 334  LIES ON A SPECIAL POSITION.                           
REMARK 465                                                                       
REMARK 465 MISSING RESIDUES                                                      
REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE                        
REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN                
REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.)                 
REMARK 465                                                                       
REMARK 465   M RES C SSSEQI                                                      
REMARK 465     MET A   -10                                                       
REMARK 465     ARG A    -9                                                       
REMARK 465     GLY A    -8                                                       
REMARK 465     SER A    -7                                                       
REMARK 465     HIS A    -6                                                       
REMARK 465     HIS A    -5                                                       
REMARK 465     HIS A    -4                                                       
REMARK 465     HIS A    -3                                                       
REMARK 465     HIS A    -2                                                       
REMARK 465     MET C   -10                                                       
REMARK 465     ARG C    -9                                                       
REMARK 465     GLY C    -8                                                       
REMARK 465     SER C    -7                                                       
REMARK 465     HIS C    -6                                                       
REMARK 465     HIS C    -5                                                       
REMARK 465     HIS C    -4                                                       
REMARK 465     HIS C    -3                                                       
REMARK 465     HIS C    -2                                                       
REMARK 465     HIS C    -1                                                       
REMARK 465     GLY C     0                                                       
REMARK 465     SER C     1                                                       
REMARK 465     ALA C     2                                                       
REMARK 465     SER C     3                                                       
REMARK 480                                                                       
REMARK 480 ZERO OCCUPANCY ATOM                                                   
REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO                   
REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS                 
REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME;               
REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):          
REMARK 480   M RES C SSEQI ATOMS                                                 
REMARK 480     GLU B  203   CB   CG   CD   OE1  OE2                              
REMARK 480     LYS C   29   CE   NZ                                              
REMARK 480     ASP D  113   CG   OD1  OD2                                        
REMARK 480     LYS D  209   CD   CE   NZ                                         
REMARK 480     LYS D  212   CD   CE   NZ                                         
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   CE   LYS D   212     O    HOH D   435              1.76             
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   NZ   LYS B   228     O    HOH D   350     5555     1.85             
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    PHE B  69       76.47   -101.78                                    
REMARK 500    ALA B 137     -149.59    -80.43                                    
REMARK 500    LYS B 207     -120.96     33.80                                    
REMARK 500    PHE D  69       72.46   -101.62                                    
REMARK 500    PRO D 165      152.37    -46.92                                    
REMARK 500    LYS D 209      -32.53   -133.70                                    
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 A 123        DISTANCE =  5.17 ANGSTROMS                        
REMARK 525    HOH A 125        DISTANCE =  5.18 ANGSTROMS                        
REMARK 525    HOH A 140        DISTANCE =  5.14 ANGSTROMS                        
REMARK 525    HOH B 381        DISTANCE =  5.84 ANGSTROMS                        
REMARK 525    HOH B 387        DISTANCE =  5.01 ANGSTROMS                        
REMARK 525    HOH B 397        DISTANCE =  6.71 ANGSTROMS                        
REMARK 525    HOH C 131        DISTANCE =  5.50 ANGSTROMS                        
REMARK 525    HOH C 147        DISTANCE =  5.10 ANGSTROMS                        
REMARK 525    HOH D 405        DISTANCE =  6.27 ANGSTROMS                        
REMARK 525    HOH D 422        DISTANCE =  5.19 ANGSTROMS                        
REMARK 525    HOH D 442        DISTANCE =  5.05 ANGSTROMS                        
REMARK 525    HOH D 448        DISTANCE =  5.16 ANGSTROMS                        
REMARK 525    HOH D 459        DISTANCE =  6.22 ANGSTROMS                        
REMARK 900                                                                       
REMARK 900 RELATED ENTRIES                                                       
REMARK 900 RELATED ID: 2A52   RELATED DB: PDB                                    
REMARK 900 THE SAME PROTEIN(S158V), ON-STATE                                     
REMARK 900 RELATED ID: 2A53   RELATED DB: PDB                                    
REMARK 900 THE SAME PROTEIN(A143S), OFF-STATE                                    
REMARK 900 RELATED ID: 2A54   RELATED DB: PDB                                    
REMARK 900 THE SAME PROTEIN(A143S), ON-STATE, 1MIN IRRADIATION                   
REMARK 900 RELATED ID: 2A56   RELATED DB: PDB                                    
REMARK 900 THE SAME PROTEIN(A143S), ON-STATE, 5MIN IRRADIATION                   
REMARK 999                                                                       
REMARK 999 SEQUENCE                                                              
REMARK 999 RESIDUES MET 63, TYR 64 AND GLY 65 AUTOCATALYTICALLY                  
REMARK 999 FORM THE CHROMOPHORE NRQ LABELLED AS RESIDUE 65 IN                    
REMARK 999 THE COORDINATES.                                                      
DBREF  2A50 A    2    62  UNP    Q9GZ28   NFCP_ANESU       2     62              
DBREF  2A50 C    2    62  UNP    Q9GZ28   NFCP_ANESU       2     62              
DBREF  2A50 B   65   232  UNP    Q9GZ28   NFCP_ANESU      63    232              
DBREF  2A50 D   65   232  UNP    Q9GZ28   NFCP_ANESU      63    232              
SEQADV 2A50 MET A  -10  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 ARG A   -9  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 GLY A   -8  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 SER A   -7  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -6  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -5  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -4  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -3  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -2  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS A   -1  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 GLY A    0  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 SER A    1  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 MET C  -10  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 ARG C   -9  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 GLY C   -8  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 SER C   -7  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -6  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -5  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -4  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -3  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -2  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 HIS C   -1  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 GLY C    0  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 SER C    1  UNP  Q9GZ28              EXPRESSION TAG                  
SEQADV 2A50 NRQ B   65  UNP  Q9GZ28    MET    63 CHROMOPHORE                     
SEQADV 2A50 NRQ B   65  UNP  Q9GZ28    TYR    64 CHROMOPHORE                     
SEQADV 2A50 NRQ B   65  UNP  Q9GZ28    GLY    65 CHROMOPHORE                     
SEQADV 2A50 NRQ D   65  UNP  Q9GZ28    MET    63 CHROMOPHORE                     
SEQADV 2A50 NRQ D   65  UNP  Q9GZ28    TYR    64 CHROMOPHORE                     
SEQADV 2A50 NRQ D   65  UNP  Q9GZ28    GLY    65 CHROMOPHORE                     
SEQRES   1 A   73  MET ARG GLY SER HIS HIS HIS HIS HIS HIS GLY SER ALA           
SEQRES   2 A   73  SER PHE LEU LYS LYS THR MET PRO PHE LYS THR THR ILE           
SEQRES   3 A   73  GLU GLY THR VAL ASN GLY HIS TYR PHE LYS CYS THR GLY           
SEQRES   4 A   73  LYS GLY GLU GLY ASN PRO PHE GLU GLY THR GLN GLU MET           
SEQRES   5 A   73  LYS ILE GLU VAL ILE GLU GLY GLY PRO LEU PRO PHE ALA           
SEQRES   6 A   73  PHE HIS ILE LEU SER THR SER CYS                               
SEQRES   1 B  168  NRQ SER LYS THR PHE ILE LYS TYR VAL SER GLY ILE PRO           
SEQRES   2 B  168  ASP TYR PHE LYS GLN SER PHE PRO GLU GLY PHE THR TRP           
SEQRES   3 B  168  GLU ARG THR THR THR TYR GLU ASP GLY GLY PHE LEU THR           
SEQRES   4 B  168  ALA HIS GLN ASP THR SER LEU ASP GLY ASP CYS LEU VAL           
SEQRES   5 B  168  TYR LYS VAL LYS ILE LEU GLY ASN ASN PHE PRO ALA ASP           
SEQRES   6 B  168  GLY PRO VAL MET GLN ASN LYS ALA GLY ARG TRP GLU PRO           
SEQRES   7 B  168  ALA THR GLU ILE VAL TYR GLU VAL ASP GLY VAL LEU ARG           
SEQRES   8 B  168  GLY GLN SER LEU MET ALA LEU LYS CYS PRO GLY GLY ARG           
SEQRES   9 B  168  HIS LEU THR CYS HIS LEU HIS THR THR TYR ARG SER LYS           
SEQRES  10 B  168  LYS PRO ALA SER ALA LEU LYS MET PRO GLY PHE HIS PHE           
SEQRES  11 B  168  GLU ASP HIS ARG ILE GLU ILE MET GLU GLU VAL GLU LYS           
SEQRES  12 B  168  GLY LYS CYS TYR LYS GLN TYR GLU ALA ALA VAL GLY ARG           
SEQRES  13 B  168  TYR CYS ASP ALA ALA PRO SER LYS LEU GLY HIS ASN               
SEQRES   1 C   73  MET ARG GLY SER HIS HIS HIS HIS HIS HIS GLY SER ALA           
SEQRES   2 C   73  SER PHE LEU LYS LYS THR MET PRO PHE LYS THR THR ILE           
SEQRES   3 C   73  GLU GLY THR VAL ASN GLY HIS TYR PHE LYS CYS THR GLY           
SEQRES   4 C   73  LYS GLY GLU GLY ASN PRO PHE GLU GLY THR GLN GLU MET           
SEQRES   5 C   73  LYS ILE GLU VAL ILE GLU GLY GLY PRO LEU PRO PHE ALA           
SEQRES   6 C   73  PHE HIS ILE LEU SER THR SER CYS                               
SEQRES   1 D  168  NRQ SER LYS THR PHE ILE LYS TYR VAL SER GLY ILE PRO           
SEQRES   2 D  168  ASP TYR PHE LYS GLN SER PHE PRO GLU GLY PHE THR TRP           
SEQRES   3 D  168  GLU ARG THR THR THR TYR GLU ASP GLY GLY PHE LEU THR           
SEQRES   4 D  168  ALA HIS GLN ASP THR SER LEU ASP GLY ASP CYS LEU VAL           
SEQRES   5 D  168  TYR LYS VAL LYS ILE LEU GLY ASN ASN PHE PRO ALA ASP           
SEQRES   6 D  168  GLY PRO VAL MET GLN ASN LYS ALA GLY ARG TRP GLU PRO           
SEQRES   7 D  168  ALA THR GLU ILE VAL TYR GLU VAL ASP GLY VAL LEU ARG           
SEQRES   8 D  168  GLY GLN SER LEU MET ALA LEU LYS CYS PRO GLY GLY ARG           
SEQRES   9 D  168  HIS LEU THR CYS HIS LEU HIS THR THR TYR ARG SER LYS           
SEQRES  10 D  168  LYS PRO ALA SER ALA LEU LYS MET PRO GLY PHE HIS PHE           
SEQRES  11 D  168  GLU ASP HIS ARG ILE GLU ILE MET GLU GLU VAL GLU LYS           
SEQRES  12 D  168  GLY LYS CYS TYR LYS GLN TYR GLU ALA ALA VAL GLY ARG           
SEQRES  13 D  168  TYR CYS ASP ALA ALA PRO SER LYS LEU GLY HIS ASN               
MODRES 2A50 NRQ B   65  MET                                                      
MODRES 2A50 NRQ B   65  TYR                                                      
MODRES 2A50 NRQ B   65  GLY                                                      
MODRES 2A50 NRQ D   65  MET                                                      
MODRES 2A50 NRQ D   65  TYR                                                      
MODRES 2A50 NRQ D   65  GLY                                                      
HET    NRQ  B  65      23                                                        
HET    NRQ  D  65      23                                                        
HETNAM     NRQ {(4Z)-4-(4-HYDROXYBENZYLIDENE)-2-[3-(METHYLTHIO)                  
HETNAM   2 NRQ  PROPANIMIDOYL]-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-                  
HETNAM   3 NRQ  YL}ACETIC ACID                                                   
HETSYN     NRQ CHROMOPHORE (MET-TYR-GLY)                                         
FORMUL   2  NRQ    2(C16 H17 N3 O4 S)                                            
FORMUL   5  HOH   *659(H2 O)                                                     
HELIX    1   1 SER A    1  LEU A    5  5                                   5     
HELIX    2   2 ALA A   54  CYS A   62  5                                   9     
HELIX    3   3 PHE B   80  PHE B   84  5                                   5     
HELIX    4   4 PRO B  183  LEU B  187  5                                   5     
HELIX    5   5 ALA C   54  CYS C   62  5                                   9     
HELIX    6   6 PHE D   80  PHE D   84  5                                   5     
HELIX    7   7 PRO D  183  LEU D  187  5                                   5     
SHEET    1   A11 LYS B  71  TYR B  72  0                                         
SHEET    2   A11 CYS B 210  ARG B 220  1  O  GLY B 219   N  LYS B  71            
SHEET    3   A11 THR A  38  GLU A  47 -1  N  ILE A  43   O  TYR B 211            
SHEET    4   A11 HIS A  22  ASN A  33 -1  N  THR A  27   O  GLU A  44            
SHEET    5   A11 MET A   9  VAL A  19 -1  N  ILE A  15   O  CYS A  26            
SHEET    6   A11 CYS B 114  ASN B 124  1  O  VAL B 119   N  THR A  14            
SHEET    7   A11 PHE B 101  ASP B 111 -1  N  ASP B 111   O  CYS B 114            
SHEET    8   A11 PHE B  88  TYR B  96 -1  N  PHE B  88   O  THR B 108            
SHEET    9   A11 HIS B 169  SER B 180 -1  O  ARG B 179   N  THR B  89            
SHEET   10   A11 VAL B 153  LYS B 163 -1  N  LEU B 162   O  LEU B 170            
SHEET   11   A11 ARG B 139  TRP B 140 -1  N  ARG B 139   O  LYS B 163            
SHEET    1   B 6 LYS B  71  TYR B  72  0                                         
SHEET    2   B 6 CYS B 210  ARG B 220  1  O  GLY B 219   N  LYS B  71            
SHEET    3   B 6 HIS B 193  GLU B 206 -1  N  PHE B 194   O  ARG B 220            
SHEET    4   B 6 ALA B 143  VAL B 150 -1  N  GLU B 145   O  GLU B 195            
SHEET    5   B 6 VAL B 153  LYS B 163 -1  O  ARG B 155   N  TYR B 148            
SHEET    6   B 6 ARG B 139  TRP B 140 -1  N  ARG B 139   O  LYS B 163            
SHEET    1   C11 LYS D  71  TYR D  72  0                                         
SHEET    2   C11 CYS D 210  ARG D 220  1  O  GLY D 219   N  LYS D  71            
SHEET    3   C11 THR C  38  GLU C  47 -1  N  ILE C  43   O  TYR D 211            
SHEET    4   C11 HIS C  22  ASN C  33 -1  N  THR C  27   O  GLU C  44            
SHEET    5   C11 MET C   9  VAL C  19 -1  N  PHE C  11   O  GLY C  30            
SHEET    6   C11 CYS D 114  ASN D 124  1  O  GLY D 123   N  THR C  18            
SHEET    7   C11 PHE D 101  ASP D 111 -1  N  THR D 103   O  LEU D 122            
SHEET    8   C11 PHE D  88  TYR D  96 -1  N  TRP D  90   O  GLN D 106            
SHEET    9   C11 ARG D 168  SER D 180 -1  O  ARG D 179   N  THR D  89            
SHEET   10   C11 VAL D 153  CYS D 164 -1  N  LEU D 154   O  TYR D 178            
SHEET   11   C11 ARG D 139  TRP D 140 -1  N  ARG D 139   O  LYS D 163            
SHEET    1   D 6 LYS D  71  TYR D  72  0                                         
SHEET    2   D 6 CYS D 210  ARG D 220  1  O  GLY D 219   N  LYS D  71            
SHEET    3   D 6 HIS D 193  GLU D 206 -1  N  GLU D 200   O  TYR D 214            
SHEET    4   D 6 ALA D 143  VAL D 150 -1  N  ALA D 143   O  HIS D 197            
SHEET    5   D 6 VAL D 153  CYS D 164 -1  O  ARG D 155   N  TYR D 148            
SHEET    6   D 6 ARG D 139  TRP D 140 -1  N  ARG D 139   O  LYS D 163            
LINK         C3  NRQ B  65                 N   SER B  66     1555   1555  1.33   
LINK         C3  NRQ D  65                 N   SER D  66     1555   1555  1.33   
CISPEP   1 GLY A   49    PRO A   50          0        -4.30                      
CISPEP   2 PHE B   84    PRO B   85          0         8.38                      
CISPEP   3 LYS B  207    GLY B  208          0        -9.91                      
CISPEP   4 GLY C   49    PRO C   50          0        -3.94                      
CISPEP   5 PHE D   84    PRO D   85          0         7.25                      
CRYST1   76.174  126.500   94.108  90.00  90.00  90.00 C 2 2 21     16           
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      0.013128  0.000000  0.000000        0.00000                          
SCALE2      0.000000  0.007905  0.000000        0.00000                          
SCALE3      0.000000  0.000000  0.010626        0.00000                          
END