HEADER    LUMINESCENT PROTEIN                     27-FEB-12   4DXM              
TITLE     CRYSTAL STRUCTURE OF AN ANCESTRAL GFP-LIKE PROTEIN                    
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: GREEN FLUORESCENT PROTEIN;                                 
COMPND   3 CHAIN: A, B, C, D;                                                   
COMPND   4 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: SYNTHETIC CONSTRUCT;                            
SOURCE   3 ORGANISM_COMMON: ARTIFICIAL;                                         
SOURCE   4 ORGANISM_TAXID: 32630;                                               
SOURCE   5 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   6 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   7 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE   9 EXPRESSION_SYSTEM_PLASMID: PGEM-T                                    
KEYWDS    BETA BARREL, LUMINESCENT PROTEIN                                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    H.KIM,R.FROMME,R.M.WACHTER                                            
REVDAT   4   06-NOV-24 4DXM    1       REMARK                                   
REVDAT   3   15-NOV-23 4DXM    1       REMARK LINK   ATOM                       
REVDAT   2   22-APR-15 4DXM    1       JRNL                                     
REVDAT   1   27-FEB-13 4DXM    0                                                
JRNL        AUTH   H.KIM,T.ZOU,C.MODI,K.DORNER,T.J.GRUNKEMEYER,L.CHEN,R.FROMME, 
JRNL        AUTH 2 M.V.MATZ,S.B.OZKAN,R.M.WACHTER                               
JRNL        TITL   A HINGE MIGRATION MECHANISM UNLOCKS THE EVOLUTION OF         
JRNL        TITL 2 GREEN-TO-RED PHOTOCONVERSION IN GFP-LIKE PROTEINS.           
JRNL        REF    STRUCTURE                     V.  23    34 2015              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   25565105                                                     
JRNL        DOI    10.1016/J.STR.2014.11.011                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.40 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.5.0110                                      
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD WITH PHASES                
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.40                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.67                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 160594                         
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) : 0.145                           
REMARK   3   R VALUE            (WORKING SET) : 0.143                           
REMARK   3   FREE R VALUE                     : 0.179                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : NULL                            
REMARK   3   FREE R VALUE TEST SET COUNT      : 8278                            
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) : 1.40                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.44                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 11892                        
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : 99.94                        
REMARK   3   BIN R VALUE           (WORKING SET) : 0.2750                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 609                          
REMARK   3   BIN FREE R VALUE                    : 0.3310                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 7197                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 15                                      
REMARK   3   SOLVENT ATOMS            : 1150                                    
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 10.36                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -0.02000                                             
REMARK   3    B22 (A**2) : 0.03000                                              
REMARK   3    B33 (A**2) : -0.01000                                             
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): 0.065         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.059         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.033         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.841         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.973                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.961                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  7653 ; 0.011 ; 0.022       
REMARK   3   BOND LENGTHS OTHERS               (A):  5337 ; 0.001 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES): 10360 ; 1.492 ; 1.978       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 13025 ; 0.844 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   941 ; 7.061 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):   356 ;33.417 ;24.101       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  1368 ;12.184 ;15.000       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):    36 ;11.790 ;15.000       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):  1050 ; 0.092 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  8487 ; 0.008 ; 0.021       
REMARK   3   GENERAL PLANES OTHERS             (A):  1609 ; 0.001 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):  NULL ;  NULL ;  NULL       
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):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW OTHERS               (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):  NULL ;  NULL ;  NULL       
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):  4510 ; 1.172 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  1824 ; 0.508 ; 1.500       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  7325 ; 1.874 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  3143 ; 2.689 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  3011 ; 4.025 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2): 12990 ; 1.253 ; 3.000       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  1150 ; 5.192 ; 3.000       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2): 12763 ; 2.591 ; 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   : 1.40                                          
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 4DXM COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 29-FEB-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000070910.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 06-DEC-10                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.7                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 4.2.2                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.9998                             
REMARK 200  MONOCHROMATOR                  : SAGITALLY FOCUSED SI(111)          
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : NOIR-1                             
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : MOSFLM                             
REMARK 200  DATA SCALING SOFTWARE          : SCALA                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 169035                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.400                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 29.670                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 2.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.9                               
REMARK 200  DATA REDUNDANCY                : 3.500                              
REMARK 200  R MERGE                    (I) : NULL                               
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.1000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.48                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 0.35                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.37800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> 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: PHASER                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 40.02                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.05                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 0.2M TRIS, 0.12M MAGNESIUM SULFATE,      
REMARK 280  20% PEG 4000, PH 7.7, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE    
REMARK 280  198K, TEMPERATURE 298K                                              
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1                          
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,Y,-Z                                                 
REMARK 290       3555   X+1/2,Y+1/2,Z                                           
REMARK 290       4555   -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        0.00000            
REMARK 290   SMTRY1   3  1.000000  0.000000  0.000000       53.14000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       46.35500            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   4 -1.000000  0.000000  0.000000       53.14000            
REMARK 290   SMTRY2   4  0.000000  1.000000  0.000000       46.35500            
REMARK 290   SMTRY3   4  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: TETRAMERIC                        
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC                 
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 TOTAL BURIED SURFACE AREA: 10490 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 31710 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -56.0 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 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     1                                                      
REMARK 465     ALA A   224                                                      
REMARK 465     LYS A   225                                                      
REMARK 465     HIS A   226                                                      
REMARK 465     HIS A   227                                                      
REMARK 465     HIS A   228                                                      
REMARK 465     HIS A   229                                                      
REMARK 465     HIS A   230                                                      
REMARK 465     HIS A   231                                                      
REMARK 465     MET B     1                                                      
REMARK 465     SER B     2                                                      
REMARK 465     HIS B   226                                                      
REMARK 465     HIS B   227                                                      
REMARK 465     HIS B   228                                                      
REMARK 465     HIS B   229                                                      
REMARK 465     HIS B   230                                                      
REMARK 465     HIS B   231                                                      
REMARK 465     MET C     1                                                      
REMARK 465     ALA C   224                                                      
REMARK 465     LYS C   225                                                      
REMARK 465     HIS C   226                                                      
REMARK 465     HIS C   227                                                      
REMARK 465     HIS C   228                                                      
REMARK 465     HIS C   229                                                      
REMARK 465     HIS C   230                                                      
REMARK 465     HIS C   231                                                      
REMARK 465     MET D     1                                                      
REMARK 465     LYS D   225                                                      
REMARK 465     HIS D   226                                                      
REMARK 465     HIS D   227                                                      
REMARK 465     HIS D   228                                                      
REMARK 465     HIS D   229                                                      
REMARK 465     HIS D   230                                                      
REMARK 465     HIS D   231                                                      
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   OE1  GLN D    38     O    HOH D   596              1.80            
REMARK 500   O    GLY D   166     O    HOH D   690              1.85            
REMARK 500   O    HOH A   602     O    HOH A   654              1.94            
REMARK 500   O    HOH D   604     O    HOH D   705              1.96            
REMARK 500   O    HOH B   494     O    HOH B   674              2.01            
REMARK 500   N    GLY A   167     O    HOH A   530              2.13            
REMARK 500   O    HOH D   628     O    HOH D   709              2.13            
REMARK 500   O    HOH D   479     O    HOH D   705              2.15            
REMARK 500   CE   MET B   219     O    HOH B   491              2.18            
REMARK 500   OE1  GLN C    38     O    HOH C   465              2.18            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS                                             
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC             
REMARK 500 SYMMETRY ARE IN CLOSE CONTACT.  AN ATOM LOCATED WITHIN 0.15          
REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A           
REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375             
REMARK 500 INSTEAD OF REMARK 500.  ATOMS WITH NON-BLANK ALTERNATE               
REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS.            
REMARK 500                                                                      
REMARK 500 DISTANCE CUTOFF:                                                     
REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS              
REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS                  
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI  SSYMOP   DISTANCE          
REMARK 500   O    HOH C   585     O    HOH D   709     3445     2.02            
REMARK 500   OE2  GLU D   110     O    HOH C   417     3555     2.03            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ARG B 170   NE  -  CZ  -  NH1 ANGL. DEV. =   3.5 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 B 301                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 D 301                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4DXI   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4DXN   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4DXO   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4DXP   RELATED DB: PDB                                   
REMARK 900 RELATED ID: 4DXQ   RELATED DB: PDB                                   
DBREF  4DXM A    1   231  PDB    4DXM     4DXM             1    231             
DBREF  4DXM B    1   231  PDB    4DXM     4DXM             1    231             
DBREF  4DXM C    1   231  PDB    4DXM     4DXM             1    231             
DBREF  4DXM D    1   231  PDB    4DXM     4DXM             1    231             
SEQRES   1 A  229  MET SER VAL ILE LYS SER ASP MET LYS ILE LYS LEU ARG          
SEQRES   2 A  229  MET GLU GLY THR VAL ASN GLY HIS LYS PHE VAL ILE GLU          
SEQRES   3 A  229  GLY GLU GLY GLU GLY LYS PRO TYR GLU GLY THR GLN THR          
SEQRES   4 A  229  MET ASN LEU LYS VAL LYS GLU GLY ALA PRO LEU PRO PHE          
SEQRES   5 A  229  ALA TYR ASP ILE LEU THR THR ALA PHE CR8 ASN ARG VAL          
SEQRES   6 A  229  PHE THR LYS TYR PRO LYS ASP ILE PRO ASP TYR PHE LYS          
SEQRES   7 A  229  GLN SER PHE PRO GLU GLY TYR SER TRP GLU ARG SER MET          
SEQRES   8 A  229  THR PHE GLU ASP GLY GLY ILE CYS THR ALA THR SER ASP          
SEQRES   9 A  229  ILE THR LEU GLU GLY ASP CYS PHE PHE TYR GLU ILE ARG          
SEQRES  10 A  229  PHE ASP GLY VAL ASN PHE PRO PRO ASN GLY PRO VAL MET          
SEQRES  11 A  229  GLN LYS LYS THR LEU LYS TRP GLU PRO SER THR GLU LYS          
SEQRES  12 A  229  MET TYR VAL ARG ASP GLY VAL LEU MET GLY ASP VAL ASN          
SEQRES  13 A  229  MET ALA LEU LEU LEU GLU GLY GLY GLY HIS TYR ARG CYS          
SEQRES  14 A  229  ASP PHE LYS THR THR TYR LYS ALA LYS LYS GLY VAL GLN          
SEQRES  15 A  229  LEU PRO ASP TYR HIS PHE VAL ASP HIS ARG ILE GLU ILE          
SEQRES  16 A  229  LEU SER HIS ASP LYS ASP TYR ASN ASN VAL LYS LEU TYR          
SEQRES  17 A  229  GLU HIS ALA VAL ALA ARG TYR SER MET LEU PRO ARG GLN          
SEQRES  18 A  229  ALA LYS HIS HIS HIS HIS HIS HIS                              
SEQRES   1 B  229  MET SER VAL ILE LYS SER ASP MET LYS ILE LYS LEU ARG          
SEQRES   2 B  229  MET GLU GLY THR VAL ASN GLY HIS LYS PHE VAL ILE GLU          
SEQRES   3 B  229  GLY GLU GLY GLU GLY LYS PRO TYR GLU GLY THR GLN THR          
SEQRES   4 B  229  MET ASN LEU LYS VAL LYS GLU GLY ALA PRO LEU PRO PHE          
SEQRES   5 B  229  ALA TYR ASP ILE LEU THR THR ALA PHE CR8 ASN ARG VAL          
SEQRES   6 B  229  PHE THR LYS TYR PRO LYS ASP ILE PRO ASP TYR PHE LYS          
SEQRES   7 B  229  GLN SER PHE PRO GLU GLY TYR SER TRP GLU ARG SER MET          
SEQRES   8 B  229  THR PHE GLU ASP GLY GLY ILE CYS THR ALA THR SER ASP          
SEQRES   9 B  229  ILE THR LEU GLU GLY ASP CYS PHE PHE TYR GLU ILE ARG          
SEQRES  10 B  229  PHE ASP GLY VAL ASN PHE PRO PRO ASN GLY PRO VAL MET          
SEQRES  11 B  229  GLN LYS LYS THR LEU LYS TRP GLU PRO SER THR GLU LYS          
SEQRES  12 B  229  MET TYR VAL ARG ASP GLY VAL LEU MET GLY ASP VAL ASN          
SEQRES  13 B  229  MET ALA LEU LEU LEU GLU GLY GLY GLY HIS TYR ARG CYS          
SEQRES  14 B  229  ASP PHE LYS THR THR TYR LYS ALA LYS LYS GLY VAL GLN          
SEQRES  15 B  229  LEU PRO ASP TYR HIS PHE VAL ASP HIS ARG ILE GLU ILE          
SEQRES  16 B  229  LEU SER HIS ASP LYS ASP TYR ASN ASN VAL LYS LEU TYR          
SEQRES  17 B  229  GLU HIS ALA VAL ALA ARG TYR SER MET LEU PRO ARG GLN          
SEQRES  18 B  229  ALA LYS HIS HIS HIS HIS HIS HIS                              
SEQRES   1 C  229  MET SER VAL ILE LYS SER ASP MET LYS ILE LYS LEU ARG          
SEQRES   2 C  229  MET GLU GLY THR VAL ASN GLY HIS LYS PHE VAL ILE GLU          
SEQRES   3 C  229  GLY GLU GLY GLU GLY LYS PRO TYR GLU GLY THR GLN THR          
SEQRES   4 C  229  MET ASN LEU LYS VAL LYS GLU GLY ALA PRO LEU PRO PHE          
SEQRES   5 C  229  ALA TYR ASP ILE LEU THR THR ALA PHE CR8 ASN ARG VAL          
SEQRES   6 C  229  PHE THR LYS TYR PRO LYS ASP ILE PRO ASP TYR PHE LYS          
SEQRES   7 C  229  GLN SER PHE PRO GLU GLY TYR SER TRP GLU ARG SER MET          
SEQRES   8 C  229  THR PHE GLU ASP GLY GLY ILE CYS THR ALA THR SER ASP          
SEQRES   9 C  229  ILE THR LEU GLU GLY ASP CYS PHE PHE TYR GLU ILE ARG          
SEQRES  10 C  229  PHE ASP GLY VAL ASN PHE PRO PRO ASN GLY PRO VAL MET          
SEQRES  11 C  229  GLN LYS LYS THR LEU LYS TRP GLU PRO SER THR GLU LYS          
SEQRES  12 C  229  MET TYR VAL ARG ASP GLY VAL LEU MET GLY ASP VAL ASN          
SEQRES  13 C  229  MET ALA LEU LEU LEU GLU GLY GLY GLY HIS TYR ARG CYS          
SEQRES  14 C  229  ASP PHE LYS THR THR TYR LYS ALA LYS LYS GLY VAL GLN          
SEQRES  15 C  229  LEU PRO ASP TYR HIS PHE VAL ASP HIS ARG ILE GLU ILE          
SEQRES  16 C  229  LEU SER HIS ASP LYS ASP TYR ASN ASN VAL LYS LEU TYR          
SEQRES  17 C  229  GLU HIS ALA VAL ALA ARG TYR SER MET LEU PRO ARG GLN          
SEQRES  18 C  229  ALA LYS HIS HIS HIS HIS HIS HIS                              
SEQRES   1 D  229  MET SER VAL ILE LYS SER ASP MET LYS ILE LYS LEU ARG          
SEQRES   2 D  229  MET GLU GLY THR VAL ASN GLY HIS LYS PHE VAL ILE GLU          
SEQRES   3 D  229  GLY GLU GLY GLU GLY LYS PRO TYR GLU GLY THR GLN THR          
SEQRES   4 D  229  MET ASN LEU LYS VAL LYS GLU GLY ALA PRO LEU PRO PHE          
SEQRES   5 D  229  ALA TYR ASP ILE LEU THR THR ALA PHE CR8 ASN ARG VAL          
SEQRES   6 D  229  PHE THR LYS TYR PRO LYS ASP ILE PRO ASP TYR PHE LYS          
SEQRES   7 D  229  GLN SER PHE PRO GLU GLY TYR SER TRP GLU ARG SER MET          
SEQRES   8 D  229  THR PHE GLU ASP GLY GLY ILE CYS THR ALA THR SER ASP          
SEQRES   9 D  229  ILE THR LEU GLU GLY ASP CYS PHE PHE TYR GLU ILE ARG          
SEQRES  10 D  229  PHE ASP GLY VAL ASN PHE PRO PRO ASN GLY PRO VAL MET          
SEQRES  11 D  229  GLN LYS LYS THR LEU LYS TRP GLU PRO SER THR GLU LYS          
SEQRES  12 D  229  MET TYR VAL ARG ASP GLY VAL LEU MET GLY ASP VAL ASN          
SEQRES  13 D  229  MET ALA LEU LEU LEU GLU GLY GLY GLY HIS TYR ARG CYS          
SEQRES  14 D  229  ASP PHE LYS THR THR TYR LYS ALA LYS LYS GLY VAL GLN          
SEQRES  15 D  229  LEU PRO ASP TYR HIS PHE VAL ASP HIS ARG ILE GLU ILE          
SEQRES  16 D  229  LEU SER HIS ASP LYS ASP TYR ASN ASN VAL LYS LEU TYR          
SEQRES  17 D  229  GLU HIS ALA VAL ALA ARG TYR SER MET LEU PRO ARG GLN          
SEQRES  18 D  229  ALA LYS HIS HIS HIS HIS HIS HIS                              
MODRES 4DXM CR8 A   63  HIS                                                     
MODRES 4DXM CR8 A   63  TYR                                                     
MODRES 4DXM CR8 A   63  GLY                                                     
MODRES 4DXM CR8 B   63  HIS                                                     
MODRES 4DXM CR8 B   63  TYR                                                     
MODRES 4DXM CR8 B   63  GLY                                                     
MODRES 4DXM CR8 C   63  HIS                                                     
MODRES 4DXM CR8 C   63  TYR                                                     
MODRES 4DXM CR8 C   63  GLY                                                     
MODRES 4DXM CR8 D   63  HIS                                                     
MODRES 4DXM CR8 D   63  TYR                                                     
MODRES 4DXM CR8 D   63  GLY                                                     
HET    CR8  A  63      25                                                       
HET    CR8  B  63      25                                                       
HET    CR8  C  63      25                                                       
HET    CR8  D  63      25                                                       
HET    SO4  A 301       5                                                       
HET    SO4  B 301       5                                                       
HET    SO4  D 301       5                                                       
HETNAM     CR8 2-[1-AMINO-2-(1H-IMIDAZOL-5-YL)ETHYL]-1-                         
HETNAM   2 CR8  (CARBOXYMETHYL)-4-[(4-OXOCYCLOHEXA-2,5-DIEN-1-                  
HETNAM   3 CR8  YLIDENE)METHYL]-1H-IMIDAZOL-5-OLATE                             
HETNAM     SO4 SULFATE ION                                                      
HETSYN     CR8 CHROMOPHORE (HIS-TYR-GLY)                                        
FORMUL   1  CR8    4(C17 H16 N5 O4 1-)                                          
FORMUL   5  SO4    3(O4 S 2-)                                                   
FORMUL   8  HOH   *1150(H2 O)                                                   
HELIX    1   1 TYR A   54  THR A   59  1                                   6    
HELIX    2   2 ASP A   77  SER A   82  1                                   6    
HELIX    3   3 TYR B   54  THR B   59  1                                   6    
HELIX    4   4 ASP B   77  SER B   82  1                                   6    
HELIX    5   5 LYS B  202  TYR B  204  5                                   3    
HELIX    6   6 TYR C   54  THR C   59  1                                   6    
HELIX    7   7 ASP C   77  SER C   82  1                                   6    
HELIX    8   8 TYR D   54  THR D   59  1                                   6    
HELIX    9   9 ASP D   77  SER D   82  1                                   6    
SHEET    1   A13 THR A 136  TRP A 139  0                                        
SHEET    2   A13 VAL A 152  LEU A 163 -1  O  LEU A 162   N  LEU A 137           
SHEET    3   A13 HIS A 168  ALA A 179 -1  O  TYR A 177   N  LEU A 153           
SHEET    4   A13 TYR A  87  PHE A  95 -1  N  SER A  88   O  LYS A 178           
SHEET    5   A13 ILE A 100  GLU A 110 -1  O  ALA A 103   N  ARG A  91           
SHEET    6   A13 CYS A 113  VAL A 123 -1  O  VAL A 123   N  ILE A 100           
SHEET    7   A13 MET A   8  VAL A  18  1  N  ARG A  13   O  ILE A 118           
SHEET    8   A13 HIS A  21  LYS A  32 -1  O  ILE A  25   N  MET A  14           
SHEET    9   A13 THR A  37  GLU A  46 -1  O  ASN A  41   N  GLU A  28           
SHEET   10   A13 ASN A 206  ARG A 216 -1  O  VAL A 207   N  LEU A  42           
SHEET   11   A13 HIS A 189  HIS A 200 -1  N  GLU A 196   O  TYR A 210           
SHEET   12   A13 SER A 142  ARG A 149 -1  N  GLU A 144   O  VAL A 191           
SHEET   13   A13 VAL A 152  LEU A 163 -1  O  MET A 154   N  TYR A 147           
SHEET    1   B13 THR B 136  TRP B 139  0                                        
SHEET    2   B13 VAL B 152  LEU B 163 -1  O  LEU B 162   N  LEU B 137           
SHEET    3   B13 HIS B 168  ALA B 179 -1  O  TYR B 177   N  LEU B 153           
SHEET    4   B13 TYR B  87  PHE B  95 -1  N  SER B  88   O  LYS B 178           
SHEET    5   B13 ILE B 100  GLU B 110 -1  O  CYS B 101   N  MET B  93           
SHEET    6   B13 CYS B 113  VAL B 123 -1  O  VAL B 123   N  ILE B 100           
SHEET    7   B13 MET B   8  VAL B  18  1  N  ARG B  13   O  ILE B 118           
SHEET    8   B13 HIS B  21  LYS B  32 -1  O  ILE B  25   N  MET B  14           
SHEET    9   B13 THR B  37  GLU B  46 -1  O  LYS B  43   N  GLU B  26           
SHEET   10   B13 ASN B 206  ARG B 216 -1  O  VAL B 207   N  LEU B  42           
SHEET   11   B13 HIS B 189  HIS B 200 -1  N  GLU B 196   O  TYR B 210           
SHEET   12   B13 SER B 142  ARG B 149 -1  N  GLU B 144   O  VAL B 191           
SHEET   13   B13 VAL B 152  LEU B 163 -1  O  MET B 154   N  TYR B 147           
SHEET    1   C13 THR C 136  TRP C 139  0                                        
SHEET    2   C13 VAL C 152  LEU C 163 -1  O  LEU C 162   N  LEU C 137           
SHEET    3   C13 HIS C 168  ALA C 179 -1  O  TYR C 177   N  LEU C 153           
SHEET    4   C13 TYR C  87  PHE C  95 -1  N  SER C  88   O  LYS C 178           
SHEET    5   C13 ILE C 100  GLU C 110 -1  O  CYS C 101   N  MET C  93           
SHEET    6   C13 CYS C 113  VAL C 123 -1  O  ASP C 121   N  THR C 102           
SHEET    7   C13 MET C   8  VAL C  18  1  N  LYS C   9   O  PHE C 114           
SHEET    8   C13 HIS C  21  LYS C  32 -1  O  ILE C  25   N  MET C  14           
SHEET    9   C13 THR C  37  GLU C  46 -1  O  LYS C  45   N  VAL C  24           
SHEET   10   C13 ASN C 206  ARG C 216 -1  O  VAL C 207   N  LEU C  42           
SHEET   11   C13 HIS C 189  HIS C 200 -1  N  SER C 199   O  LYS C 208           
SHEET   12   C13 SER C 142  ARG C 149 -1  N  MET C 146   O  HIS C 189           
SHEET   13   C13 VAL C 152  LEU C 163 -1  O  ASP C 156   N  LYS C 145           
SHEET    1   D13 THR D 136  TRP D 139  0                                        
SHEET    2   D13 VAL D 152  LEU D 163 -1  O  LEU D 162   N  LEU D 137           
SHEET    3   D13 HIS D 168  ALA D 179 -1  O  TYR D 177   N  LEU D 153           
SHEET    4   D13 TYR D  87  PHE D  95 -1  N  SER D  88   O  LYS D 178           
SHEET    5   D13 ILE D 100  GLU D 110 -1  O  CYS D 101   N  MET D  93           
SHEET    6   D13 CYS D 113  VAL D 123 -1  O  VAL D 123   N  ILE D 100           
SHEET    7   D13 MET D   8  VAL D  18  1  N  LYS D   9   O  PHE D 114           
SHEET    8   D13 HIS D  21  LYS D  32 -1  O  ILE D  25   N  MET D  14           
SHEET    9   D13 THR D  37  GLU D  46 -1  O  LYS D  43   N  GLU D  26           
SHEET   10   D13 ASN D 206  ARG D 216 -1  O  VAL D 207   N  LEU D  42           
SHEET   11   D13 HIS D 189  HIS D 200 -1  N  GLU D 196   O  TYR D 210           
SHEET   12   D13 SER D 142  ARG D 149 -1  N  MET D 146   O  HIS D 189           
SHEET   13   D13 VAL D 152  LEU D 163 -1  O  MET D 154   N  TYR D 147           
LINK         C   PHE A  61                 N1  CR8 A  63     1555   1555  1.42  
LINK         C3  CR8 A  63                 N   ASN A  65     1555   1555  1.32  
LINK         C   PHE B  61                 N1  CR8 B  63     1555   1555  1.47  
LINK         C3  CR8 B  63                 N   ASN B  65     1555   1555  1.36  
LINK         C   PHE C  61                 N1  CR8 C  63     1555   1555  1.49  
LINK         C3  CR8 C  63                 N   ASN C  65     1555   1555  1.33  
LINK         C   PHE D  61                 N1  CR8 D  63     1555   1555  1.44  
LINK         C3  CR8 D  63                 N   ASN D  65     1555   1555  1.38  
CISPEP   1 ALA A   48    PRO A   49          0        -6.47                     
CISPEP   2 PHE A   83    PRO A   84          0        12.22                     
CISPEP   3 ALA B   48    PRO B   49          0        -8.14                     
CISPEP   4 PHE B   83    PRO B   84          0        10.75                     
CISPEP   5 ALA C   48    PRO C   49          0        -6.13                     
CISPEP   6 PHE C   83    PRO C   84          0        12.91                     
CISPEP   7 ALA D   48    PRO D   49          0        -6.97                     
CISPEP   8 PHE D   83    PRO D   84          0        10.11                     
SITE     1 AC1  8 VAL A 148  ARG A 149  ASP A 150  HOH A 425                    
SITE     2 AC1  8 HOH A 438  HOH A 637  HOH A 646  GLY B 167                    
SITE     1 AC2  6 GLY A 167  ARG B 149  ASP B 150  HOH B 424                    
SITE     2 AC2  6 HOH B 519  HOH B 560                                          
SITE     1 AC3  7 GLY C 167  ASP D 150  HOH D 407  HOH D 452                    
SITE     2 AC3  7 HOH D 600  HOH D 651  HOH D 661                               
CRYST1  106.280   92.710   89.060  90.00  93.18  90.00 C 1 2 1      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      0.009409  0.000000  0.000523        0.00000                         
SCALE2      0.000000  0.010786  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.011246        0.00000