HEADER    TRANSCRIPTION                           09-JAN-24   8XSB              
TITLE     CRYSTAL STRUCTURE OF THE DNA-BOUND AHR-ARNT HETERODIMER IN COMPLEX    
TITLE    2 WITH INDIRUBIN                                                       
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: ARYL HYDROCARBON RECEPTOR NUCLEAR TRANSLOCATOR;            
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: ARNT PROTEIN;                                               
COMPND   5 ENGINEERED: YES;                                                     
COMPND   6 MOL_ID: 2;                                                           
COMPND   7 MOLECULE: ARYL HYDROCARBON RECEPTOR;                                 
COMPND   8 CHAIN: B;                                                            
COMPND   9 ENGINEERED: YES;                                                     
COMPND  10 MOL_ID: 3;                                                           
COMPND  11 MOLECULE: DNAF;                                                      
COMPND  12 CHAIN: C;                                                            
COMPND  13 ENGINEERED: YES;                                                     
COMPND  14 MOL_ID: 4;                                                           
COMPND  15 MOLECULE: DNAR;                                                      
COMPND  16 CHAIN: D;                                                            
COMPND  17 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: ARNT;                                                          
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 MOL_ID: 2;                                                           
SOURCE  10 ORGANISM_SCIENTIFIC: SUS SCROFA;                                     
SOURCE  11 ORGANISM_COMMON: PIG;                                                
SOURCE  12 ORGANISM_TAXID: 9823;                                                
SOURCE  13 GENE: AHR;                                                           
SOURCE  14 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3);                       
SOURCE  15 EXPRESSION_SYSTEM_TAXID: 469008;                                     
SOURCE  16 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE  17 MOL_ID: 3;                                                           
SOURCE  18 SYNTHETIC: YES;                                                      
SOURCE  19 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  20 ORGANISM_TAXID: 9606;                                                
SOURCE  21 MOL_ID: 4;                                                           
SOURCE  22 SYNTHETIC: YES;                                                      
SOURCE  23 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE  24 ORGANISM_TAXID: 9606                                                 
KEYWDS    ARYL HYDROCARBON RECEPTOR, INDIRUBIN, BHLH-PAS, TRANSCRIPTION         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    X.DIAO,Q.SHANG,D.WU                                                   
REVDAT   1   15-JAN-25 8XSB    0                                                
JRNL        AUTH   X.DIAO,Q.SHANG,M.GUO,Y.HUANG,M.ZHANG,X.CHEN,Y.LIANG,X.SUN,   
JRNL        AUTH 2 J.ZHUANG,S.LIU,C.F.A.VOGEL,F.RASTINEJAD,D.WU                 
JRNL        TITL   STRUCTURAL MECHANISM OF THE LIGAND-ACTIVATED HETERODIMERIC   
JRNL        TITL 2 AHR-ARNT COMPLEX                                             
JRNL        REF    TO BE PUBLISHED                                              
JRNL        REFN                                                                
REMARK   2                                                                      
REMARK   2 RESOLUTION.    3.06 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.14                                          
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 3.06                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 36.00                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 1.350                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.6                           
REMARK   3   NUMBER OF REFLECTIONS             : 20087                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.202                           
REMARK   3   R VALUE            (WORKING SET) : 0.200                           
REMARK   3   FREE R VALUE                     : 0.240                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 1005                            
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 36.0000 -  5.8384    0.98     2759   145  0.2014 0.2142        
REMARK   3     2  5.8384 -  4.6373    0.99     2751   145  0.1752 0.2256        
REMARK   3     3  4.6373 -  4.0520    0.99     2750   145  0.1669 0.2136        
REMARK   3     4  4.0520 -  3.6819    0.99     2731   143  0.1932 0.2370        
REMARK   3     5  3.6819 -  3.4182    0.99     2709   143  0.2085 0.2697        
REMARK   3     6  3.4182 -  3.2168    0.98     2699   143  0.2549 0.2840        
REMARK   3     7  3.2168 -  3.0600    0.97     2683   141  0.2838 0.3372        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.430            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.210           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 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  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.003           6097                                  
REMARK   3   ANGLE     :  0.524           8403                                  
REMARK   3   CHIRALITY :  0.039            927                                  
REMARK   3   PLANARITY :  0.004            928                                  
REMARK   3   DIHEDRAL  : 11.462           4095                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 1                                          
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: ALL                                                    
REMARK   3    ORIGIN FOR THE GROUP (A):  19.5292   2.8952  13.1280              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.3872 T22:   0.3365                                     
REMARK   3      T33:   0.3835 T12:   0.0826                                     
REMARK   3      T13:   0.0803 T23:   0.0526                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.7775 L22:   0.6330                                     
REMARK   3      L33:   0.3646 L12:   0.4918                                     
REMARK   3      L13:   0.1361 L23:   0.1972                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0129 S12:  -0.2807 S13:  -0.0499                       
REMARK   3      S21:   0.0282 S22:  -0.0138 S23:  -0.0807                       
REMARK   3      S31:   0.0491 S32:   0.0782 S33:   0.0034                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 8XSB COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 16-JAN-24.                  
REMARK 100 THE DEPOSITION ID IS D_1300043759.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 19-MAR-23                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : NULL                               
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL18U1                             
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : PSI PILATUS 6M                     
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XDS                                
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 20126                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 3.060                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 49.820                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.7                               
REMARK 200  DATA REDUNDANCY                : 6.800                              
REMARK 200  R MERGE                    (I) : 0.14900                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 12.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 3.06                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 3.17                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 97.3                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.80                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.81000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.400                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: PHENIX                                                
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 55.32                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.75                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: POTASSIUM CITRATE TRIBASIC               
REMARK 280  MONOHYDRATE, PEG3350, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE    
REMARK 280  289K                                                                
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,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       49.81600            
REMARK 290   SMTRY3   2  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: 12950 ANGSTROM**2                         
REMARK 350 SURFACE AREA OF THE COMPLEX: 36070 ANGSTROM**2                       
REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -98.0 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     LEU A   122                                                      
REMARK 465     ALA A   123                                                      
REMARK 465     ARG A   124                                                      
REMARK 465     GLY A   144                                                      
REMARK 465     THR A   145                                                      
REMARK 465     GLY A   146                                                      
REMARK 465     ASN A   147                                                      
REMARK 465     THR A   148                                                      
REMARK 465     SER A   149                                                      
REMARK 465     THR A   150                                                      
REMARK 465     ASP A   151                                                      
REMARK 465     GLY A   152                                                      
REMARK 465     SER A   153                                                      
REMARK 465     TYR A   154                                                      
REMARK 465     LYS A   155                                                      
REMARK 465     SER A   228                                                      
REMARK 465     GLU A   229                                                      
REMARK 465     ASN A   230                                                      
REMARK 465     ALA A   231                                                      
REMARK 465     LEU A   232                                                      
REMARK 465     THR A   233                                                      
REMARK 465     GLY A   234                                                      
REMARK 465     ARG A   235                                                      
REMARK 465     ILE A   236                                                      
REMARK 465     LEU A   237                                                      
REMARK 465     ASP A   238                                                      
REMARK 465     LEU A   239                                                      
REMARK 465     LYS A   240                                                      
REMARK 465     THR A   241                                                      
REMARK 465     GLY A   242                                                      
REMARK 465     THR A   243                                                      
REMARK 465     VAL A   244                                                      
REMARK 465     LYS A   245                                                      
REMARK 465     LYS A   246                                                      
REMARK 465     GLU A   247                                                      
REMARK 465     GLY A   248                                                      
REMARK 465     GLN A   249                                                      
REMARK 465     GLN A   250                                                      
REMARK 465     SER A   251                                                      
REMARK 465     SER A   252                                                      
REMARK 465     MET A   253                                                      
REMARK 465     ARG A   254                                                      
REMARK 465     MET A   255                                                      
REMARK 465     CYS A   256                                                      
REMARK 465     MET A   257                                                      
REMARK 465     GLY A   258                                                      
REMARK 465     GLY A   270                                                      
REMARK 465     SER A   271                                                      
REMARK 465     SER A   272                                                      
REMARK 465     SER A   273                                                      
REMARK 465     VAL A   274                                                      
REMARK 465     ASP A   275                                                      
REMARK 465     PRO A   276                                                      
REMARK 465     VAL A   277                                                      
REMARK 465     SER A   278                                                      
REMARK 465     VAL A   279                                                      
REMARK 465     ASN A   280                                                      
REMARK 465     ARG A   281                                                      
REMARK 465     LEU A   282                                                      
REMARK 465     SER A   283                                                      
REMARK 465     PHE A   284                                                      
REMARK 465     VAL A   285                                                      
REMARK 465     ARG A   286                                                      
REMARK 465     ASN A   287                                                      
REMARK 465     ARG A   288                                                      
REMARK 465     CYS A   289                                                      
REMARK 465     ARG A   290                                                      
REMARK 465     ASN A   291                                                      
REMARK 465     GLY A   292                                                      
REMARK 465     LEU A   293                                                      
REMARK 465     GLY A   294                                                      
REMARK 465     SER A   295                                                      
REMARK 465     VAL A   296                                                      
REMARK 465     LYS A   297                                                      
REMARK 465     ASP A   298                                                      
REMARK 465     GLY A   299                                                      
REMARK 465     VAL A   345                                                      
REMARK 465     THR A   346                                                      
REMARK 465     SER A   347                                                      
REMARK 465     SER A   348                                                      
REMARK 465     PRO A   349                                                      
REMARK 465     ASN A   350                                                      
REMARK 465     CYS A   351                                                      
REMARK 465     THR A   352                                                      
REMARK 465     ASP A   353                                                      
REMARK 465     MET A   354                                                      
REMARK 465     SER A   355                                                      
REMARK 465     ASN A   356                                                      
REMARK 465     VAL A   357                                                      
REMARK 465     CYS A   358                                                      
REMARK 465     GLN A   359                                                      
REMARK 465     LYS A   465                                                      
REMARK 465     MET B    25                                                      
REMARK 465     ILE B    26                                                      
REMARK 465     PRO B    27                                                      
REMARK 465     ALA B    28                                                      
REMARK 465     GLU B    29                                                      
REMARK 465     GLY B    30                                                      
REMARK 465     ILE B    31                                                      
REMARK 465     LYS B    32                                                      
REMARK 465     SER B    89                                                      
REMARK 465     SER B    90                                                      
REMARK 465     PRO B    91                                                      
REMARK 465     ALA B    92                                                      
REMARK 465     ASP B    93                                                      
REMARK 465     ARG B    94                                                      
REMARK 465     ASN B    95                                                      
REMARK 465     TRP B   175                                                      
REMARK 465     ALA B   176                                                      
REMARK 465     LEU B   177                                                      
REMARK 465     ASN B   178                                                      
REMARK 465     PRO B   179                                                      
REMARK 465     SER B   180                                                      
REMARK 465     GLN B   181                                                      
REMARK 465     CYS B   182                                                      
REMARK 465     PRO B   183                                                      
REMARK 465     ASP B   184                                                      
REMARK 465     SER B   185                                                      
REMARK 465     GLY B   186                                                      
REMARK 465     GLN B   187                                                      
REMARK 465     ARG B   188                                                      
REMARK 465     ILE B   189                                                      
REMARK 465     ASP B   190                                                      
REMARK 465     GLU B   191                                                      
REMARK 465     ALA B   192                                                      
REMARK 465     SER B   193                                                      
REMARK 465     GLY B   194                                                      
REMARK 465     LEU B   195                                                      
REMARK 465     SER B   196                                                      
REMARK 465     GLN B   197                                                      
REMARK 465     PRO B   198                                                      
REMARK 465     ALA B   199                                                      
REMARK 465     ALA B   200                                                      
REMARK 465     TYR B   201                                                      
REMARK 465     TYR B   202                                                      
REMARK 465     ASN B   203                                                      
REMARK 465     PRO B   204                                                      
REMARK 465     GLU B   205                                                      
REMARK 465     GLN B   206                                                      
REMARK 465     LEU B   207                                                      
REMARK 465     PRO B   208                                                      
REMARK 465     PRO B   209                                                      
REMARK 465     GLU B   210                                                      
REMARK 465     ASN B   211                                                      
REMARK 465     SER B   212                                                      
REMARK 465     PHE B   213                                                      
REMARK 465     ASP B   227                                                      
REMARK 465     ASN B   228                                                      
REMARK 465     SER B   229                                                      
REMARK 465     SER B   230                                                      
REMARK 465     PRO B   273                                                      
REMARK 465     SER B   274                                                      
REMARK 465     ILE B   275                                                      
REMARK 465     LEU B   276                                                      
REMARK 465     HIS B   414                                                      
REMARK 465     HIS B   415                                                      
REMARK 465     HIS B   416                                                      
REMARK 465     HIS B   417                                                      
REMARK 465     HIS B   418                                                      
REMARK 465     HIS B   419                                                      
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   O2    DC C     1     N2    DG D     1     1655     2.14            
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    PRO A 117      -77.87    -54.50                                   
REMARK 500    ALA A 172       31.47   -145.98                                   
REMARK 500    ASP A 173     -148.25     53.36                                   
REMARK 500    ASP A 325       41.23    -89.94                                   
REMARK 500    LEU A 418       70.03   -109.96                                   
REMARK 500    TYR A 450      -61.71   -104.57                                   
REMARK 500    THR B 140       -5.32    -59.68                                   
REMARK 500    ILE B 278     -120.61   -148.03                                   
REMARK 500    THR B 280        0.03    -66.55                                   
REMARK 500    ASP B 375      -51.68   -125.20                                   
REMARK 500    PHE B 402       18.95     59.45                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
DBREF  8XSB A   85   465  UNP    P27540   ARNT_HUMAN      85    465             
DBREF  8XSB B   26   413  UNP    I3LF82   I3LF82_PIG      26    413             
DBREF  8XSB C    1    21  PDB    8XSB     8XSB             1     21             
DBREF  8XSB D    1    21  PDB    8XSB     8XSB             1     21             
SEQADV 8XSB MET A   84  UNP  P27540              INITIATING METHIONINE          
SEQADV 8XSB MET B   25  UNP  I3LF82              INITIATING METHIONINE          
SEQADV 8XSB HIS B  414  UNP  I3LF82              EXPRESSION TAG                 
SEQADV 8XSB HIS B  415  UNP  I3LF82              EXPRESSION TAG                 
SEQADV 8XSB HIS B  416  UNP  I3LF82              EXPRESSION TAG                 
SEQADV 8XSB HIS B  417  UNP  I3LF82              EXPRESSION TAG                 
SEQADV 8XSB HIS B  418  UNP  I3LF82              EXPRESSION TAG                 
SEQADV 8XSB HIS B  419  UNP  I3LF82              EXPRESSION TAG                 
SEQRES   1 A  382  MET ASP LYS GLU ARG LEU ALA ARG GLU ASN HIS SER GLU          
SEQRES   2 A  382  ILE GLU ARG ARG ARG ARG ASN LYS MET THR ALA TYR ILE          
SEQRES   3 A  382  THR GLU LEU SER ASP MET VAL PRO THR CYS SER ALA LEU          
SEQRES   4 A  382  ALA ARG LYS PRO ASP LYS LEU THR ILE LEU ARG MET ALA          
SEQRES   5 A  382  VAL SER HIS MET LYS SER LEU ARG GLY THR GLY ASN THR          
SEQRES   6 A  382  SER THR ASP GLY SER TYR LYS PRO SER PHE LEU THR ASP          
SEQRES   7 A  382  GLN GLU LEU LYS HIS LEU ILE LEU GLU ALA ALA ASP GLY          
SEQRES   8 A  382  PHE LEU PHE ILE VAL SER CYS GLU THR GLY ARG VAL VAL          
SEQRES   9 A  382  TYR VAL SER ASP SER VAL THR PRO VAL LEU ASN GLN PRO          
SEQRES  10 A  382  GLN SER GLU TRP PHE GLY SER THR LEU TYR ASP GLN VAL          
SEQRES  11 A  382  HIS PRO ASP ASP VAL ASP LYS LEU ARG GLU GLN LEU SER          
SEQRES  12 A  382  THR SER GLU ASN ALA LEU THR GLY ARG ILE LEU ASP LEU          
SEQRES  13 A  382  LYS THR GLY THR VAL LYS LYS GLU GLY GLN GLN SER SER          
SEQRES  14 A  382  MET ARG MET CYS MET GLY SER ARG ARG SER PHE ILE CYS          
SEQRES  15 A  382  ARG MET ARG CYS GLY SER SER SER VAL ASP PRO VAL SER          
SEQRES  16 A  382  VAL ASN ARG LEU SER PHE VAL ARG ASN ARG CYS ARG ASN          
SEQRES  17 A  382  GLY LEU GLY SER VAL LYS ASP GLY GLU PRO HIS PHE VAL          
SEQRES  18 A  382  VAL VAL HIS CYS THR GLY TYR ILE LYS ALA TRP PRO PRO          
SEQRES  19 A  382  ALA GLY VAL SER LEU PRO ASP ASP ASP PRO GLU ALA GLY          
SEQRES  20 A  382  GLN GLY SER LYS PHE CYS LEU VAL ALA ILE GLY ARG LEU          
SEQRES  21 A  382  GLN VAL THR SER SER PRO ASN CYS THR ASP MET SER ASN          
SEQRES  22 A  382  VAL CYS GLN PRO THR GLU PHE ILE SER ARG HIS ASN ILE          
SEQRES  23 A  382  GLU GLY ILE PHE THR PHE VAL ASP HIS ARG CYS VAL ALA          
SEQRES  24 A  382  THR VAL GLY TYR GLN PRO GLN GLU LEU LEU GLY LYS ASN          
SEQRES  25 A  382  ILE VAL GLU PHE CYS HIS PRO GLU ASP GLN GLN LEU LEU          
SEQRES  26 A  382  ARG ASP SER PHE GLN GLN VAL VAL LYS LEU LYS GLY GLN          
SEQRES  27 A  382  VAL LEU SER VAL MET PHE ARG PHE ARG SER LYS ASN GLN          
SEQRES  28 A  382  GLU TRP LEU TRP MET ARG THR SER SER PHE THR PHE GLN          
SEQRES  29 A  382  ASN PRO TYR SER ASP GLU ILE GLU TYR ILE ILE CYS THR          
SEQRES  30 A  382  ASN THR ASN VAL LYS                                          
SEQRES   1 B  395  MET ILE PRO ALA GLU GLY ILE LYS SER ASN PRO SER LYS          
SEQRES   2 B  395  ARG HIS ARG ASP ARG LEU ASN THR GLU LEU ASP ARG LEU          
SEQRES   3 B  395  ALA SER LEU LEU PRO PHE PRO GLN ASP VAL ILE ASN LYS          
SEQRES   4 B  395  LEU ASP LYS LEU SER VAL LEU ARG LEU SER VAL SER TYR          
SEQRES   5 B  395  LEU ARG ALA LYS SER PHE PHE ASP VAL SER LEU LYS SER          
SEQRES   6 B  395  SER PRO ALA ASP ARG ASN GLY VAL GLN ASP ASN CYS ARG          
SEQRES   7 B  395  THR LYS PHE ARG GLU GLY LEU ASN LEU GLN GLU GLY GLU          
SEQRES   8 B  395  PHE LEU LEU GLN ALA LEU ASN GLY PHE VAL LEU VAL VAL          
SEQRES   9 B  395  THR THR ASP ALA LEU VAL PHE TYR ALA SER SER THR ILE          
SEQRES  10 B  395  GLN ASP TYR LEU GLY PHE GLN GLN SER ASP VAL ILE HIS          
SEQRES  11 B  395  GLN SER VAL TYR GLU LEU ILE HIS THR GLU ASP ARG ALA          
SEQRES  12 B  395  GLU PHE GLN ARG GLN LEU HIS TRP ALA LEU ASN PRO SER          
SEQRES  13 B  395  GLN CYS PRO ASP SER GLY GLN ARG ILE ASP GLU ALA SER          
SEQRES  14 B  395  GLY LEU SER GLN PRO ALA ALA TYR TYR ASN PRO GLU GLN          
SEQRES  15 B  395  LEU PRO PRO GLU ASN SER PHE MET GLU ARG CYS PHE VAL          
SEQRES  16 B  395  CYS ARG LEU ARG CYS LEU LEU ASP ASN SER SER GLY PHE          
SEQRES  17 B  395  LEU ALA MET ASN PHE GLN GLY ARG LEU LYS TYR LEU HIS          
SEQRES  18 B  395  GLY GLN ASN LYS LYS GLY LYS ASP GLY SER ILE LEU PRO          
SEQRES  19 B  395  PRO GLN LEU ALA LEU PHE ALA ILE ALA THR PRO LEU GLN          
SEQRES  20 B  395  PRO PRO SER ILE LEU GLU ILE ARG THR LYS ASN PHE ILE          
SEQRES  21 B  395  PHE ARG THR LYS HIS LYS LEU ASP PHE THR PRO THR GLY          
SEQRES  22 B  395  CYS ASP ALA LYS GLY LYS ILE VAL LEU GLY TYR THR GLU          
SEQRES  23 B  395  ALA GLU LEU CYS MET ARG GLY THR GLY TYR GLN PHE ILE          
SEQRES  24 B  395  HIS ALA ALA ASP MET LEU TYR CYS ALA GLU TYR HIS VAL          
SEQRES  25 B  395  ARG MET ILE LYS THR GLY GLU SER GLY MET ILE VAL PHE          
SEQRES  26 B  395  ARG LEU LEU THR LYS ASP ASN ARG TRP THR TRP VAL GLN          
SEQRES  27 B  395  SER ASN ALA ARG LEU VAL TYR LYS ASN GLY ARG PRO ASP          
SEQRES  28 B  395  TYR ILE ILE ALA THR GLN ARG PRO LEU THR ASP GLU GLU          
SEQRES  29 B  395  GLY LYS GLU HIS LEU ARG LYS ARG THR LEU LYS LEU PRO          
SEQRES  30 B  395  PHE MET PHE ALA THR GLY GLU ALA VAL LEU TYR GLU HIS          
SEQRES  31 B  395  HIS HIS HIS HIS HIS                                          
SEQRES   1 C   21   DC  DA  DT  DC  DG  DG  DG  DC  DA  DT  DC  DG  DC          
SEQRES   2 C   21   DG  DT  DG  DA  DC  DA  DA  DG                              
SEQRES   1 D   21   DG  DC  DT  DT  DG  DT  DC  DA  DC  DG  DC  DG  DA          
SEQRES   2 D   21   DT  DG  DC  DC  DC  DG  DA  DT                              
HET    JY6  B 501      20                                                       
HETNAM     JY6 (3~{Z})-3-(3-OXIDANYLIDENE-1~{H}-INDOL-2-YLIDENE)-               
HETNAM   2 JY6  1~{H}-INDOL-2-ONE                                               
HETSYN     JY6 INDIRUBIN                                                        
FORMUL   5  JY6    C16 H10 N2 O2                                                
FORMUL   6  HOH   *23(H2 O)                                                     
HELIX    1 AA1 ASP A   85  VAL A  116  1                                  32    
HELIX    2 AA2 VAL A  116  ALA A  121  1                                   6    
HELIX    3 AA3 ASP A  127  ARG A  143  1                                  17    
HELIX    4 AA4 THR A  160  ASP A  173  1                                  14    
HELIX    5 AA5 VAL A  193  ASN A  198  1                                   6    
HELIX    6 AA6 PRO A  200  PHE A  205  1                                   6    
HELIX    7 AA7 THR A  208  VAL A  213  1                                   6    
HELIX    8 AA8 HIS A  214  ASP A  216  5                                   3    
HELIX    9 AA9 ASP A  217  SER A  226  1                                  10    
HELIX   10 AB1 ARG A  379  GLY A  385  1                                   7    
HELIX   11 AB2 GLN A  387  LEU A  392  1                                   6    
HELIX   12 AB3 ASN A  395  CYS A  400  5                                   6    
HELIX   13 AB4 HIS A  401  LEU A  418  1                                  18    
HELIX   14 AB5 ASN B   34  LEU B   54  1                                  21    
HELIX   15 AB6 PRO B   57  LYS B   63  1                                   7    
HELIX   16 AB7 ASP B   65  LEU B   87  1                                  23    
HELIX   17 AB8 GLN B   98  ARG B  102  5                                   5    
HELIX   18 AB9 THR B  103  LEU B  111  1                                   9    
HELIX   19 AC1 GLN B  112  LEU B  121  1                                  10    
HELIX   20 AC2 THR B  140  LEU B  145  1                                   6    
HELIX   21 AC3 GLN B  148  ILE B  153  1                                   6    
HELIX   22 AC4 SER B  156  ILE B  161  5                                   6    
HELIX   23 AC5 HIS B  162  HIS B  174  1                                  13    
HELIX   24 AC6 ILE B  278  PHE B  283  5                                   6    
HELIX   25 AC7 ASP B  299  GLY B  307  1                                   9    
HELIX   26 AC8 THR B  309  MET B  315  1                                   7    
HELIX   27 AC9 THR B  318  PHE B  322  5                                   5    
HELIX   28 AD1 ASP B  327  GLY B  342  1                                  16    
HELIX   29 AD2 THR B  385  LYS B  395  1                                  11    
SHEET    1 AA1 5 VAL A 186  VAL A 189  0                                        
SHEET    2 AA1 5 PHE A 175  SER A 180 -1  N  ILE A 178   O  TYR A 188           
SHEET    3 AA1 5 PHE A 335  LEU A 343 -1  O  ALA A 339   N  PHE A 177           
SHEET    4 AA1 5 PHE A 303  ALA A 314 -1  N  LYS A 313   O  CYS A 336           
SHEET    5 AA1 5 ARG A 260  ARG A 268 -1  N  ARG A 261   O  GLY A 310           
SHEET    1 AA2 6 LEU A 423  ARG A 430  0                                        
SHEET    2 AA2 6 TRP A 436  GLN A 447 -1  O  THR A 441   N  VAL A 425           
SHEET    3 AA2 6 ILE A 454  ASN A 463 -1  O  GLU A 455   N  PHE A 446           
SHEET    4 AA2 6 GLU A 362  HIS A 367 -1  N  PHE A 363   O  ASN A 461           
SHEET    5 AA2 6 PHE A 373  ASP A 377 -1  O  THR A 374   N  ARG A 366           
SHEET    6 AA2 6 GLY B 407  ALA B 409 -1  O  GLU B 408   N  VAL A 376           
SHEET    1 AA3 5 VAL B 134  ALA B 137  0                                        
SHEET    2 AA3 5 PHE B 124  THR B 129 -1  N  VAL B 127   O  TYR B 136           
SHEET    3 AA3 5 LEU B 261  PRO B 269 -1  O  ALA B 267   N  PHE B 124           
SHEET    4 AA3 5 PHE B 232  TYR B 243 -1  N  LYS B 242   O  ALA B 262           
SHEET    5 AA3 5 GLU B 215  ARG B 223 -1  N  LEU B 222   O  LEU B 233           
SHEET    1 AA4 5 PRO B 295  CYS B 298  0                                        
SHEET    2 AA4 5 PHE B 285  HIS B 289 -1  N  LYS B 288   O  THR B 296           
SHEET    3 AA4 5 ARG B 373  LEU B 384 -1  O  GLN B 381   N  PHE B 285           
SHEET    4 AA4 5 TRP B 358  LYS B 370 -1  N  LYS B 370   O  ARG B 373           
SHEET    5 AA4 5 ILE B 347  LEU B 352 -1  N  LEU B 351   O  THR B 359           
CISPEP   1 TRP A  315    PRO A  316          0        -0.66                     
CRYST1   68.100   99.632   80.002  90.00  90.51  90.00 P 1 21 1      2          
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      0.014684  0.000000  0.000130        0.00000                         
SCALE2      0.000000  0.010037  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.012500        0.00000