HEADER    PHOTORECEPTOR                           27-DEC-95   2BRD              
TITLE     CRYSTAL STRUCTURE OF BACTERIORHODOPSIN IN PURPLE MEMBRANE             
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BACTERIORHODOPSIN;                                         
COMPND   3 CHAIN: A;                                                            
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HALOBACTERIUM SALINARUM;                        
SOURCE   3 ORGANISM_TAXID: 2242;                                                
SOURCE   4 STRAIN: R1                                                           
KEYWDS    PROTON PUMP, MEMBRANE PROTEIN, RETINAL PROTEIN, TWO-DIMENSIONAL       
KEYWDS   2 CRYSTAL, PHOTORECEPTOR                                               
EXPDTA    ELECTRON CRYSTALLOGRAPHY                                              
AUTHOR    R.HENDERSON,N.GRIGORIEFF                                              
REVDAT   6   30-OCT-24 2BRD    1       REMARK                                   
REVDAT   5   05-JUN-24 2BRD    1       REMARK SEQRES LINK                       
REVDAT   4   30-MAY-12 2BRD    1       EXPDTA REMARK                            
REVDAT   3   13-JUL-11 2BRD    1       VERSN                                    
REVDAT   2   24-FEB-09 2BRD    1       VERSN                                    
REVDAT   1   10-JUN-96 2BRD    0                                                
JRNL        AUTH   N.GRIGORIEFF,T.A.CESKA,K.H.DOWNING,J.M.BALDWIN,R.HENDERSON   
JRNL        TITL   ELECTRON-CRYSTALLOGRAPHIC REFINEMENT OF THE STRUCTURE OF     
JRNL        TITL 2 BACTERIORHODOPSIN.                                           
JRNL        REF    J.MOL.BIOL.                   V. 259   393 1996              
JRNL        REFN                   ISSN 0022-2836                               
JRNL        PMID   8676377                                                      
JRNL        DOI    10.1006/JMBI.1996.0328                                       
REMARK   1                                                                      
REMARK   1 REFERENCE 1                                                          
REMARK   1  AUTH   T.A.CESKA,R.HENDERSON                                        
REMARK   1  TITL   ANALYSIS OF HIGH-RESOLUTION ELECTRON DIFFRACTION PATTERNS    
REMARK   1  TITL 2 FROM PURPLE MEMBRANE LABELLED WITH HEAVY-ATOMS               
REMARK   1  REF    J.MOL.BIOL.                   V. 213   539 1990              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 2                                                          
REMARK   1  AUTH   R.HENDERSON,J.M.BALDWIN,T.A.CESKA,F.ZEMLIN,E.BECKMANN,       
REMARK   1  AUTH 2 K.H.DOWNING                                                  
REMARK   1  TITL   MODEL FOR THE STRUCTURE OF BACTERIORHODOPSIN BASED ON        
REMARK   1  TITL 2 HIGH-RESOLUTION ELECTRON CRYO-MICROSCOPY                     
REMARK   1  REF    J.MOL.BIOL.                   V. 213   899 1990              
REMARK   1  REFN                   ISSN 0022-2836                               
REMARK   1 REFERENCE 3                                                          
REMARK   1  AUTH   R.HENDERSON,P.N.UNWIN                                        
REMARK   1  TITL   THREE-DIMENSIONAL MODEL OF PURPLE MEMBRANE OBTAINED BY       
REMARK   1  TITL 2 ELECTRON MICROSCOPY                                          
REMARK   1  REF    NATURE                        V. 257    28 1975              
REMARK   1  REFN                   ISSN 0028-0836                               
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.50 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PROLSQ                                               
REMARK   3   AUTHORS     : KONNERT,HENDRICKSON                                  
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.50                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 30.00                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 85.4                           
REMARK   3   NUMBER OF REFLECTIONS             : 4743                           
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   CROSS-VALIDATION METHOD          : NULL                            
REMARK   3   FREE R VALUE TEST SET SELECTION  : NULL                            
REMARK   3   R VALUE     (WORKING + TEST SET) : NULL                            
REMARK   3   R VALUE            (WORKING SET) : 0.280                           
REMARK   3   FREE R VALUE                     : NULL                            
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : NULL                            
REMARK   3                                                                      
REMARK   3  FIT/AGREEMENT OF MODEL WITH ALL DATA.                               
REMARK   3   R VALUE   (WORKING + TEST SET, NO CUTOFF) : NULL                   
REMARK   3   R VALUE          (WORKING SET, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE                  (NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL                   
REMARK   3   FREE R VALUE TEST SET COUNT   (NO CUTOFF) : NULL                   
REMARK   3   TOTAL NUMBER OF REFLECTIONS   (NO CUTOFF) : NULL                   
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 1718                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 610                                     
REMARK   3   SOLVENT ATOMS            : 0                                       
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 114.0                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  ESTIMATED COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT        (A) : NULL                            
REMARK   3   ESD FROM SIGMAA              (A) : NULL                            
REMARK   3   LOW RESOLUTION CUTOFF        (A) : NULL                            
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES.                                   
REMARK   3   DISTANCE RESTRAINTS.                    RMS    SIGMA               
REMARK   3    BOND LENGTH                     (A) : 0.005 ; 0.020               
REMARK   3    ANGLE DISTANCE                  (A) : 0.020 ; 0.040               
REMARK   3    INTRAPLANAR 1-4 DISTANCE        (A) : 0.022 ; 0.050               
REMARK   3    H-BOND OR METAL COORDINATION    (A) : NULL  ; NULL                
REMARK   3                                                                      
REMARK   3   PLANE RESTRAINT                  (A) : 0.005 ; 0.020               
REMARK   3   CHIRAL-CENTER RESTRAINT       (A**3) : 0.086 ; 0.150               
REMARK   3                                                                      
REMARK   3   NON-BONDED CONTACT RESTRAINTS.                                     
REMARK   3    SINGLE TORSION                  (A) : 0.185 ; 0.300               
REMARK   3    MULTIPLE TORSION                (A) : 0.242 ; 0.300               
REMARK   3    H-BOND (X...Y)                  (A) : 0.127 ; 0.300               
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) : 0.865 ; NULL                
REMARK   3    STAGGERED                 (DEGREES) : 20.400; 15.000              
REMARK   3    TRANSVERSE                (DEGREES) : 36.100; 20.000              
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: NULL                                      
REMARK   4                                                                      
REMARK   4 2BRD COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL.                                
REMARK 100 THE DEPOSITION ID IS D_1000177875.                                   
REMARK 240                                                                      
REMARK 240 EXPERIMENTAL DETAILS                                                 
REMARK 240   RECONSTRUCTION METHOD          : CRYSTALLOGRAPHY                   
REMARK 240   SAMPLE TYPE                    : 2D ARRAY                          
REMARK 240   SPECIMEN TYPE                  : NULL                              
REMARK 240 DATA ACQUISITION                                                     
REMARK 240   DATE OF DATA COLLECTION        : 01-JAN-86                         
REMARK 240   TEMPERATURE           (KELVIN) : NULL                              
REMARK 240   PH                             : NULL                              
REMARK 240   NUMBER OF CRYSTALS USED        : NULL                              
REMARK 240   MICROSCOPE MODEL               : SIEMENS SULEIKA                   
REMARK 240   DETECTOR TYPE                  : GENERIC FILM                      
REMARK 240   ACCELERATION VOLTAGE (KV)      : 100                               
REMARK 240   NUMBER OF UNIQUE REFLECTIONS   : 6750                              
REMARK 240   RESOLUTION RANGE HIGH      (A) : 2.800                             
REMARK 240   RESOLUTION RANGE LOW       (A) : 54.000                            
REMARK 240   DATA SCALING SOFTWARE          : NULL                              
REMARK 240   COMPLETENESS FOR RANGE     (%) : 62.3                              
REMARK 240   DATA REDUNDANCY                : 18.00                             
REMARK 240 IN THE HIGHEST RESOLUTION SHELL                                      
REMARK 240   HIGHEST RESOLUTION SHELL, RANGE HIGH (A) :NULL                     
REMARK 240   HIGHEST RESOLUTION SHELL, RANGE LOW  (A) :NULL                     
REMARK 240   COMPLETENESS FOR SHELL     (%) : NULL                              
REMARK 240   DATA REDUNDANCY IN SHELL       : NULL                              
REMARK 240   R MERGE FOR SHELL          (I) : NULL                              
REMARK 240   METHOD USED TO DETERMINE THE STRUCTURE: NULL                       
REMARK 240   SOFTWARE USED                  : NULL                              
REMARK 240   STARTING MODEL                 : NULL                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 3                              
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z                                                
REMARK 290       3555   -X+Y,-X,Z                                               
REMARK 290                                                                      
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                                                                      
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: TRIMERIC                          
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TRIMERIC                   
REMARK 350 SOFTWARE USED: PISA,PQS                                              
REMARK 350 TOTAL BURIED SURFACE AREA: 34840 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 35800 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -277.0 KCAL/MOL                       
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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 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     PCA A     1                                                      
REMARK 465     ALA A     2                                                      
REMARK 465     GLN A     3                                                      
REMARK 465     ILE A     4                                                      
REMARK 465     THR A     5                                                      
REMARK 465     GLY A     6                                                      
REMARK 465     ILE A   229                                                      
REMARK 465     PHE A   230                                                      
REMARK 465     GLY A   231                                                      
REMARK 465     GLU A   232                                                      
REMARK 465     ALA A   233                                                      
REMARK 465     GLU A   234                                                      
REMARK 465     ALA A   235                                                      
REMARK 465     PRO A   236                                                      
REMARK 465     GLU A   237                                                      
REMARK 465     PRO A   238                                                      
REMARK 465     SER A   239                                                      
REMARK 465     ALA A   240                                                      
REMARK 465     GLY A   241                                                      
REMARK 465     ASP A   242                                                      
REMARK 465     GLY A   243                                                      
REMARK 465     ALA A   244                                                      
REMARK 465     ALA A   245                                                      
REMARK 465     ALA A   246                                                      
REMARK 465     THR A   247                                                      
REMARK 465     SER A   248                                                      
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     ALA A 228    CA   C    O    CB                                   
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    TRP A  80   CA  -  CB  -  CG  ANGL. DEV. =  14.2 DEGREES          
REMARK 500    TYR A 133   CA  -  CB  -  CG  ANGL. DEV. =  14.6 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    GLU A   9      -41.19    -26.45                                   
REMARK 500    MET A  32      -89.28    -10.24                                   
REMARK 500    ASP A  36      -62.59   -132.17                                   
REMARK 500    PRO A  37     -118.09    -90.23                                   
REMARK 500    THR A  67       73.11   -116.15                                   
REMARK 500    PHE A  71       92.89   -171.60                                   
REMARK 500    GLN A  75      176.05    -53.88                                   
REMARK 500    THR A  89      -72.87    -42.50                                   
REMARK 500    VAL A 101      -89.22   -104.11                                   
REMARK 500    TYR A 133       -0.23   -173.72                                   
REMARK 500    ALA A 160     -141.06     42.32                                   
REMARK 500    GLU A 161      107.85    -45.90                                   
REMARK 500    MET A 163     -117.98    -99.74                                   
REMARK 500    TYR A 185      -71.49    -42.16                                   
REMARK 500    SER A 193     -101.25     12.74                                   
REMARK 500    PRO A 200      -91.57    -48.56                                   
REMARK 500    LEU A 201      -56.54   -154.37                                   
REMARK 500    ASP A 212      -73.64    -44.01                                   
REMARK 500    ARG A 227       99.21    -64.77                                   
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 DPG A 261                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 262                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 263                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 264                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 265                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 266                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC7                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 267                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC8                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 268                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC9                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 269                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE DPG A 270                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: BC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE RET A 271                 
DBREF  2BRD A    2   248  UNP    P02945   BACR_HALN1      14    253             
SEQRES   1 A  248  PCA ALA GLN ILE THR GLY ARG PRO GLU TRP ILE TRP LEU          
SEQRES   2 A  248  ALA LEU GLY THR ALA LEU MET GLY LEU GLY THR LEU TYR          
SEQRES   3 A  248  PHE LEU VAL LYS GLY MET GLY VAL SER ASP PRO ASP ALA          
SEQRES   4 A  248  LYS LYS PHE TYR ALA ILE THR THR LEU VAL PRO ALA ILE          
SEQRES   5 A  248  ALA PHE THR MET TYR LEU SER MET LEU LEU GLY TYR GLY          
SEQRES   6 A  248  LEU THR MET VAL PRO PHE GLY GLY GLU GLN ASN PRO ILE          
SEQRES   7 A  248  TYR TRP ALA ARG TYR ALA ASP TRP LEU PHE THR THR PRO          
SEQRES   8 A  248  LEU LEU LEU LEU ASP LEU ALA LEU LEU VAL ASP ALA ASP          
SEQRES   9 A  248  GLN GLY THR ILE LEU ALA LEU VAL GLY ALA ASP GLY ILE          
SEQRES  10 A  248  MET ILE GLY THR GLY LEU VAL GLY ALA LEU THR LYS VAL          
SEQRES  11 A  248  TYR SER TYR ARG PHE VAL TRP TRP ALA ILE SER THR ALA          
SEQRES  12 A  248  ALA MET LEU TYR ILE LEU TYR VAL LEU PHE PHE GLY PHE          
SEQRES  13 A  248  THR SER LYS ALA GLU SER MET ARG PRO GLU VAL ALA SER          
SEQRES  14 A  248  THR PHE LYS VAL LEU ARG ASN VAL THR VAL VAL LEU TRP          
SEQRES  15 A  248  SER ALA TYR PRO VAL VAL TRP LEU ILE GLY SER GLU GLY          
SEQRES  16 A  248  ALA GLY ILE VAL PRO LEU ASN ILE GLU THR LEU LEU PHE          
SEQRES  17 A  248  MET VAL LEU ASP VAL SER ALA LYS VAL GLY PHE GLY LEU          
SEQRES  18 A  248  ILE LEU LEU ARG SER ARG ALA ILE PHE GLY GLU ALA GLU          
SEQRES  19 A  248  ALA PRO GLU PRO SER ALA GLY ASP GLY ALA ALA ALA THR          
SEQRES  20 A  248  SER                                                          
HET    DPG  A 261      59                                                       
HET    DPG  A 262      59                                                       
HET    DPG  A 263      59                                                       
HET    DPG  A 264      59                                                       
HET    DPG  A 265      59                                                       
HET    DPG  A 266      59                                                       
HET    DPG  A 267      59                                                       
HET    DPG  A 268      59                                                       
HET    DPG  A 269      59                                                       
HET    DPG  A 270      59                                                       
HET    RET  A 271      20                                                       
HETNAM     DPG PHOSPHORIC ACID 2,3-BIS-(3,7,11,15-TETRAMETHYL-                  
HETNAM   2 DPG  HEXADECYLOXY)-PROPYL ESTER 2-HYDROXO-3-PHOSPHONOOXY-            
HETNAM   3 DPG  PROPYL ESTER                                                    
HETNAM     RET RETINAL                                                          
HETSYN     DPG DPHPG                                                            
FORMUL   2  DPG    10(C46 H96 O11 P2)                                           
FORMUL  12  RET    C20 H28 O                                                    
HELIX    1   A GLU A    9  GLY A   31  1                                  23    
HELIX    2   B ASP A   38  LEU A   62  1                                  25    
HELIX    3   C PRO A   77  LEU A  100  1                                  24    
HELIX    4   D GLN A  105  LEU A  127  1                                  23    
HELIX    5   E ARG A  134  THR A  157  1                                  24    
HELIX    6   F GLU A  166  ILE A  191  1                                  26    
HELIX    7   G ILE A  203  SER A  226  1                                  24    
LINK         NZ  LYS A 216                 C15 RET A 271     1555   1555  1.31  
SITE     1 AC1 10 TYR A  64  LEU A  66  MET A  68  PRO A  70                    
SITE     2 AC1 10 TRP A  80  LEU A  87  PHE A  88  VAL A 124                    
SITE     3 AC1 10 LYS A 129  DPG A 266                                          
SITE     1 AC2  9 SER A 183  VAL A 187  ILE A 191  ALA A 196                    
SITE     2 AC2  9 ILE A 198  LEU A 207  DPG A 263  DPG A 267                    
SITE     3 AC2  9 DPG A 268                                                     
SITE     1 AC3 11 TRP A  12  PHE A 135  TRP A 138  ALA A 196                    
SITE     2 AC3 11 ILE A 203  LEU A 206  VAL A 210  DPG A 262                    
SITE     3 AC3 11 DPG A 264  DPG A 265  DPG A 268                               
SITE     1 AC4  8 ALA A  18  PHE A  54  LEU A  58  LEU A  61                    
SITE     2 AC4  8 VAL A 136  DPG A 263  DPG A 265  DPG A 270                    
SITE     1 AC5  5 ILE A  11  LEU A  15  ALA A  18  DPG A 263                    
SITE     2 AC5  5 DPG A 264                                                     
SITE     1 AC6 12 ILE A  52  PHE A  88  LEU A  92  LEU A  95                    
SITE     2 AC6 12 LEU A  99  ALA A 103  GLN A 105  ILE A 108                    
SITE     3 AC6 12 LEU A 109  GLY A 116  ILE A 117  DPG A 261                    
SITE     1 AC7  9 PHE A 156  LYS A 172  ARG A 175  ASN A 176                    
SITE     2 AC7  9 VAL A 180  ALA A 184  VAL A 187  DPG A 262                    
SITE     3 AC7  9 DPG A 268                                                     
SITE     1 AC8 18 TRP A 138  THR A 142  MET A 145  LEU A 149                    
SITE     2 AC8 18 TYR A 150  PHE A 153  THR A 157  SER A 169                    
SITE     3 AC8 18 LYS A 172  VAL A 173  VAL A 179  PRO A 186                    
SITE     4 AC8 18 VAL A 210  SER A 214  ARG A 225  DPG A 262                    
SITE     5 AC8 18 DPG A 263  DPG A 267                                          
SITE     1 AC9 10 LEU A  28  MET A  32  GLY A  33  LYS A  40                    
SITE     2 AC9 10 THR A  47  ALA A  51  TYR A 147  PHE A 154                    
SITE     3 AC9 10 LEU A 221  DPG A 270                                          
SITE     1 BC1  9 LEU A  22  TYR A  26  VAL A  29  LYS A  30                    
SITE     2 BC1  9 GLY A  33  LEU A 224  ARG A 227  DPG A 264                    
SITE     3 BC1  9 DPG A 269                                                     
SITE     1 BC2 11 TRP A  86  THR A  89  THR A  90  MET A 118                    
SITE     2 BC2 11 TRP A 138  SER A 141  TRP A 182  TYR A 185                    
SITE     3 BC2 11 TRP A 189  ASP A 212  LYS A 216                               
CRYST1   62.450   62.450  100.900  90.00  90.00 120.00 P 3           3          
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      0.016013  0.009245  0.000000        0.00000                         
SCALE2      0.000000  0.018490  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.009911        0.00000