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Database: PDB
Entry: 5AD3
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HEADER    TRANSCRIPTION                           19-AUG-15   5AD3              
TITLE     BIVALENT BINDING TO BET BROMODOMAINS                                  
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: BROMODOMAIN-CONTAINING PROTEIN 4;                          
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: BROMODOMAIN 1, RESIDUES 44-168;                            
COMPND   5 SYNONYM: PROTEIN HUNK1, BRD4;                                        
COMPND   6 ENGINEERED: YES                                                      
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
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_VECTOR: PET                                        
KEYWDS    TRANSCRIPTION                                                         
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    M.J.WARING,H.CHEN,A.A.RABOW,G.WALKER,R.BOBBY,S.BOIKO,R.H.BRADBURY,    
AUTHOR   2 R.CALLIS,I.DALE,D.DANIELS,L.FLAVELL,G.HOLDGATE,T.A.JOWITT,A.KIKHNEY, 
AUTHOR   3 M.MCALISTER,D.OGG,J.PATEL,P.PETTERUTI,G.R.ROBB,M.ROBERS,N.STRATTON,  
AUTHOR   4 D.I.SVERGUN,W.WANG,D.WHITTAKER                                       
REVDAT   5   10-JAN-24 5AD3    1       REMARK                                   
REVDAT   4   30-NOV-16 5AD3    1       JRNL                                     
REVDAT   3   09-NOV-16 5AD3    1       JRNL                                     
REVDAT   2   26-OCT-16 5AD3    1       JRNL                                     
REVDAT   1   28-SEP-16 5AD3    0                                                
JRNL        AUTH   M.J.WARING,H.CHEN,A.A.RABOW,G.WALKER,R.BOBBY,S.BOIKO,        
JRNL        AUTH 2 R.H.BRADBURY,R.CALLIS,E.CLARK,I.DALE,D.L.DANIELS,A.DULAK,    
JRNL        AUTH 3 L.FLAVELL,G.HOLDGATE,T.A.JOWITT,A.KIKHNEY,M.MCALISTER,D.OGG, 
JRNL        AUTH 4 J.PATEL,P.PETTERUTI,G.R.ROBB,M.B.ROBERS,S.SAIF,N.STRATTON,   
JRNL        AUTH 5 D.I.SVERGUN,W.WANG,D.WHITTAKER,D.M.WILSON,Y.YAO              
JRNL        TITL   POTENT AND SELECTIVE BIVALENT INHIBITORS OF BET BROMODOMAINS 
JRNL        REF    NAT.CHEM.BIOL.                V.  12  1097 2016              
JRNL        REFN                   ISSN 1552-4450                               
JRNL        PMID   27775716                                                     
JRNL        DOI    10.1038/NCHEMBIO.2210                                        
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.49 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : BUSTER 2.11.6                                        
REMARK   3   AUTHORS     : BRICOGNE,BLANC,BRANDL,FLENSBURG,KELLER,              
REMARK   3               : PACIOREK,ROVERSI,SHARFF,SMART,VONRHEIN,              
REMARK   3               : WOMACK,MATTHEWS,TEN EYCK,TRONRUD                     
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.49                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 29.80                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.1                           
REMARK   3   NUMBER OF REFLECTIONS             : 45179                          
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)  : 0.271                          
REMARK   3   R VALUE            (WORKING SET)  : 0.269                          
REMARK   3   FREE R VALUE                      : 0.308                          
REMARK   3   FREE R VALUE TEST SET SIZE   (%)  : 5.040                          
REMARK   3   FREE R VALUE TEST SET COUNT       : 2278                           
REMARK   3   ESTIMATED ERROR OF FREE R VALUE   : NULL                           
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED               : 20                       
REMARK   3   BIN RESOLUTION RANGE HIGH   (ANGSTROMS) : 1.49                     
REMARK   3   BIN RESOLUTION RANGE LOW    (ANGSTROMS) : 1.53                     
REMARK   3   BIN COMPLETENESS (WORKING+TEST)     (%) : 99.37                    
REMARK   3   REFLECTIONS IN BIN (WORKING + TEST SET) : 3271                     
REMARK   3   BIN R VALUE        (WORKING + TEST SET) : 0.3748                   
REMARK   3   REFLECTIONS IN BIN        (WORKING SET) : 3122                     
REMARK   3   BIN R VALUE               (WORKING SET) : 0.3754                   
REMARK   3   BIN FREE R VALUE                        : 0.3617                   
REMARK   3   BIN FREE R VALUE TEST SET SIZE      (%) : 4.56                     
REMARK   3   BIN FREE R VALUE TEST SET COUNT         : 149                      
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE     : NULL                     
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 2118                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 39                                      
REMARK   3   SOLVENT ATOMS            : 237                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 20.24                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 24.91                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : -4.34430                                             
REMARK   3    B22 (A**2) : -5.71960                                             
REMARK   3    B33 (A**2) : 10.06390                                             
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 COORDINATE ERROR.                                         
REMARK   3   ESD FROM LUZZATI PLOT                    (A) : 0.329               
REMARK   3   DPI (BLOW EQ-10) BASED ON R VALUE        (A) : 0.110               
REMARK   3   DPI (BLOW EQ-9) BASED ON FREE R VALUE    (A) : 0.110               
REMARK   3   DPI (CRUICKSHANK) BASED ON R VALUE       (A) : 0.119               
REMARK   3   DPI (CRUICKSHANK) BASED ON FREE R VALUE  (A) : 0.106               
REMARK   3                                                                      
REMARK   3   REFERENCES: BLOW, D. (2002) ACTA CRYST D58, 792-797                
REMARK   3               CRUICKSHANK, D.W.J. (1999) ACTA CRYST D55, 583-601     
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.869                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.833                         
REMARK   3                                                                      
REMARK   3   NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15                    
REMARK   3   TERM                          COUNT    WEIGHT   FUNCTION.          
REMARK   3    BOND LENGTHS              : 4340   ; 2.000  ; HARMONIC            
REMARK   3    BOND ANGLES               : 7876   ; 2.000  ; HARMONIC            
REMARK   3    TORSION ANGLES            : 943    ; 2.000  ; SINUSOIDAL          
REMARK   3    TRIGONAL CARBON PLANES    : 72     ; 2.000  ; HARMONIC            
REMARK   3    GENERAL PLANES            : 577    ; 5.000  ; HARMONIC            
REMARK   3    ISOTROPIC THERMAL FACTORS : 4340   ; 20.000 ; HARMONIC            
REMARK   3    BAD NON-BONDED CONTACTS   : NULL   ; NULL   ; NULL                
REMARK   3    IMPROPER TORSIONS         : NULL   ; NULL   ; NULL                
REMARK   3    PSEUDOROTATION ANGLES     : NULL   ; NULL   ; NULL                
REMARK   3    CHIRAL IMPROPER TORSION   : 283    ; 5.000  ; SEMIHARMONIC        
REMARK   3    SUM OF OCCUPANCIES        : NULL   ; NULL   ; NULL                
REMARK   3    UTILITY DISTANCES         : NULL   ; NULL   ; NULL                
REMARK   3    UTILITY ANGLES            : NULL   ; NULL   ; NULL                
REMARK   3    UTILITY TORSION           : NULL   ; NULL   ; NULL                
REMARK   3    IDEAL-DIST CONTACT TERM   : 4637   ; 4.000  ; SEMIHARMONIC        
REMARK   3                                                                      
REMARK   3   RMS DEVIATIONS FROM IDEAL VALUES.                                  
REMARK   3    BOND LENGTHS                       (A) : 0.010                    
REMARK   3    BOND ANGLES                  (DEGREES) : 0.99                     
REMARK   3    PEPTIDE OMEGA TORSION ANGLES (DEGREES) : 2.94                     
REMARK   3    OTHER TORSION ANGLES         (DEGREES) : 16.88                    
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: NULL                                                   
REMARK   3    ORIGIN FOR THE GROUP (A):  122.5050  -32.5522    2.0687           
REMARK   3    T TENSOR                                                          
REMARK   3     T11:   -0.2240 T22:   -0.1720                                    
REMARK   3     T33:    0.1328 T12:    0.0140                                    
REMARK   3     T13:   -0.0768 T23:   -0.0429                                    
REMARK   3    L TENSOR                                                          
REMARK   3     L11:    1.5011 L22:    0.7616                                    
REMARK   3     L33:    0.8744 L12:    0.0570                                    
REMARK   3     L13:    0.2299 L23:   -0.0065                                    
REMARK   3    S TENSOR                                                          
REMARK   3     S11:    0.0737 S12:    0.0682 S13:    0.0133                     
REMARK   3     S21:    0.0045 S22:    0.0329 S23:   -0.0795                     
REMARK   3     S31:   -0.0096 S32:   -0.0190 S33:   -0.1066                     
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: NULL                                                   
REMARK   3    ORIGIN FOR THE GROUP (A):  152.5510  -49.7280    2.6483           
REMARK   3    T TENSOR                                                          
REMARK   3     T11:   -0.2010 T22:   -0.1715                                    
REMARK   3     T33:    0.1024 T12:    0.0045                                    
REMARK   3     T13:    0.0553 T23:    0.0055                                    
REMARK   3    L TENSOR                                                          
REMARK   3     L11:    1.0400 L22:    0.4345                                    
REMARK   3     L33:    1.0632 L12:   -0.0821                                    
REMARK   3     L13:   -0.3579 L23:   -0.0926                                    
REMARK   3    S TENSOR                                                          
REMARK   3     S11:    0.0036 S12:    0.0559 S13:   -0.0864                     
REMARK   3     S21:   -0.0287 S22:    0.0025 S23:   -0.1067                     
REMARK   3     S31:    0.0771 S32:   -0.0109 S33:   -0.0060                     
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 5AD3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 19-AUG-15.                  
REMARK 100 THE DEPOSITION ID IS D_1290064738.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 20-FEB-14                          
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               : APS                                
REMARK 200  BEAMLINE                       : 17-ID                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.00                               
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : PIXEL                              
REMARK 200  DETECTOR MANUFACTURER          : DECTRIS PILATUS 6M                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : AIMLESS                            
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 45639                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.490                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 52.360                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY                : 6.900                              
REMARK 200  R MERGE                    (I) : 0.10000                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 11.2000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.49                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.57                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 100.0                              
REMARK 200  DATA REDUNDANCY IN SHELL       : 7.10                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.66000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 2.300                              
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: PDB ENTRY 2OSS                                       
REMARK 200                                                                      
REMARK 200 REMARK: NONE                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 45.63                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 4K 20%W/V, (NH4)2HPO4 0.2M           
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21                       
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X+1/2,-Y,Z+1/2                                         
REMARK 290       3555   -X,Y+1/2,-Z+1/2                                         
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       54.82000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       29.79550            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       20.91300            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       29.79550            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       54.82000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       20.91300            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1, 2                                                    
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350                                                                      
REMARK 350 BIOMOLECULE: 2                                                       
REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: B                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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     SER B    42                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASN B  93       66.20     63.02                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A2048        DISTANCE =  5.89 ANGSTROMS                       
REMARK 525    HOH A2054        DISTANCE =  6.63 ANGSTROMS                       
REMARK 525    HOH A2057        DISTANCE =  6.83 ANGSTROMS                       
REMARK 525    HOH B2039        DISTANCE =  6.75 ANGSTROMS                       
REMARK 525    HOH B2116        DISTANCE =  6.00 ANGSTROMS                       
REMARK 525    HOH B2118        DISTANCE =  6.18 ANGSTROMS                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K6K B 1169                
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 5AD2   RELATED DB: PDB                                   
REMARK 900 BIVALENT BINDING TO BET BROMODOMAINS                                 
DBREF  5AD3 A   44   168  UNP    O60885   BRD4_HUMAN      44    168             
DBREF  5AD3 B   44   168  UNP    O60885   BRD4_HUMAN      44    168             
SEQADV 5AD3 SER A   42  UNP  O60885              EXPRESSION TAG                 
SEQADV 5AD3 MET A   43  UNP  O60885              EXPRESSION TAG                 
SEQADV 5AD3 SER B   42  UNP  O60885              EXPRESSION TAG                 
SEQADV 5AD3 MET B   43  UNP  O60885              EXPRESSION TAG                 
SEQRES   1 A  127  SER MET ASN PRO PRO PRO PRO GLU THR SER ASN PRO ASN          
SEQRES   2 A  127  LYS PRO LYS ARG GLN THR ASN GLN LEU GLN TYR LEU LEU          
SEQRES   3 A  127  ARG VAL VAL LEU LYS THR LEU TRP LYS HIS GLN PHE ALA          
SEQRES   4 A  127  TRP PRO PHE GLN GLN PRO VAL ASP ALA VAL LYS LEU ASN          
SEQRES   5 A  127  LEU PRO ASP TYR TYR LYS ILE ILE LYS THR PRO MET ASP          
SEQRES   6 A  127  MET GLY THR ILE LYS LYS ARG LEU GLU ASN ASN TYR TYR          
SEQRES   7 A  127  TRP ASN ALA GLN GLU CYS ILE GLN ASP PHE ASN THR MET          
SEQRES   8 A  127  PHE THR ASN CYS TYR ILE TYR ASN LYS PRO GLY ASP ASP          
SEQRES   9 A  127  ILE VAL LEU MET ALA GLU ALA LEU GLU LYS LEU PHE LEU          
SEQRES  10 A  127  GLN LYS ILE ASN GLU LEU PRO THR GLU GLU                      
SEQRES   1 B  127  SER MET ASN PRO PRO PRO PRO GLU THR SER ASN PRO ASN          
SEQRES   2 B  127  LYS PRO LYS ARG GLN THR ASN GLN LEU GLN TYR LEU LEU          
SEQRES   3 B  127  ARG VAL VAL LEU LYS THR LEU TRP LYS HIS GLN PHE ALA          
SEQRES   4 B  127  TRP PRO PHE GLN GLN PRO VAL ASP ALA VAL LYS LEU ASN          
SEQRES   5 B  127  LEU PRO ASP TYR TYR LYS ILE ILE LYS THR PRO MET ASP          
SEQRES   6 B  127  MET GLY THR ILE LYS LYS ARG LEU GLU ASN ASN TYR TYR          
SEQRES   7 B  127  TRP ASN ALA GLN GLU CYS ILE GLN ASP PHE ASN THR MET          
SEQRES   8 B  127  PHE THR ASN CYS TYR ILE TYR ASN LYS PRO GLY ASP ASP          
SEQRES   9 B  127  ILE VAL LEU MET ALA GLU ALA LEU GLU LYS LEU PHE LEU          
SEQRES  10 B  127  GLN LYS ILE ASN GLU LEU PRO THR GLU GLU                      
HET    K6K  B1169      39                                                       
HETNAM     K6K 3-METHOXY-N-[2-[4-[1-(3-METHOXY-[1,2,4]TRIAZOLO[4,3-             
HETNAM   2 K6K  B]PYRIDAZIN-6-YL)-4-PIPERIDYL]PHENOXY]ETHYL]-N-METHYL-          
HETNAM   3 K6K  [1,2,4]TRIAZOLO[4,3-B]PYRIDAZIN-6-AMINE                         
FORMUL   3  K6K    C26 H30 N10 O3                                               
FORMUL   4  HOH   *237(H2 O)                                                    
HELIX    1   1 THR A   60  VAL A   69  1                                  10    
HELIX    2   2 VAL A   69  HIS A   77  1                                   9    
HELIX    3   3 ALA A   80  GLN A   84  5                                   5    
HELIX    4   4 ASP A   96  ILE A  101  1                                   6    
HELIX    5   5 ASP A  106  ASN A  116  1                                  11    
HELIX    6   6 ALA A  122  ASN A  140  1                                  19    
HELIX    7   7 ASP A  144  GLU A  163  1                                  20    
HELIX    8   8 THR B   60  VAL B   69  1                                  10    
HELIX    9   9 VAL B   69  HIS B   77  1                                   9    
HELIX   10  10 ALA B   80  GLN B   84  5                                   5    
HELIX   11  11 ASP B   88  ASN B   93  1                                   6    
HELIX   12  12 ASP B   96  ILE B  101  1                                   6    
HELIX   13  13 ASP B  106  ASN B  116  1                                  11    
HELIX   14  14 ASN B  121  ASN B  140  1                                  20    
HELIX   15  15 ASP B  144  GLU B  163  1                                  20    
SITE     1 AC1 14 TRP A  81  PRO A  82  PHE A  83  TYR A 139                    
SITE     2 AC1 14 ASN A 140  ILE A 146  HOH A2058  TRP B  81                    
SITE     3 AC1 14 PRO B  82  VAL B  87  ASN B 140  ASP B 145                    
SITE     4 AC1 14 HOH B2047  HOH B2066                                          
CRYST1  109.640   41.826   59.591  90.00  90.00  90.00 P 21 21 21    8          
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      0.009121  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.023909  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.016781        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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