HEADER    HYDROLASE                               03-JUN-20   6Z9B              
TITLE     HUMAN ECTO-5'-NUCLEOTIDASE (CD73) IN COMPLEX WITH AOPCP DERIVATIVE    
TITLE    2 A830 (COMPOUND 16 IN PUBLICATION) IN THE CLOSED FORM (CRYSTAL FORM   
TITLE    3 III)                                                                 
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: 5'-NUCLEOTIDASE;                                           
COMPND   3 CHAIN: A;                                                            
COMPND   4 SYNONYM: 5'-NT,ECTO-5'-NUCLEOTIDASE;                                 
COMPND   5 EC: 3.1.3.5;                                                         
COMPND   6 ENGINEERED: YES;                                                     
COMPND   7 OTHER_DETAILS: CD73 CONSTRUCT 4.0 FOR E. COLI EXPRESSION AND         
COMPND   8 REFOLDING                                                            
SOURCE    MOL_ID: 1;                                                            
SOURCE   2 ORGANISM_SCIENTIFIC: HOMO SAPIENS;                                   
SOURCE   3 ORGANISM_COMMON: HUMAN;                                              
SOURCE   4 ORGANISM_TAXID: 9606;                                                
SOURCE   5 GENE: NT5E, NT5, NTE;                                                
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562                                         
KEYWDS    ZINC ENZYME, NUCLEOTIDE ANALOG, INHIBITOR, ARCUS BIOSCIENCES,         
KEYWDS   2 HYDROLASE                                                            
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    N.STRATER,E.SCALETTI                                                  
REVDAT   5   16-OCT-24 6Z9B    1       REMARK                                   
REVDAT   4   24-JAN-24 6Z9B    1       REMARK                                   
REVDAT   3   04-NOV-20 6Z9B    1       JRNL                                     
REVDAT   2   29-JUL-20 6Z9B    1       JRNL                                     
REVDAT   1   22-JUL-20 6Z9B    0                                                
JRNL        AUTH   K.V.LAWSON,J.KALISIAK,E.A.LINDSEY,E.T.NEWCOMB,M.R.LELETI,    
JRNL        AUTH 2 L.DEBIEN,B.R.ROSEN,D.H.MILES,E.U.SHARIF,J.L.JEFFREY,         
JRNL        AUTH 3 J.B.L.TAN,A.CHEN,S.ZHAO,G.XU,L.FU,L.JIN,T.W.PARK,W.BERRY,    
JRNL        AUTH 4 S.MOSCHUTZ,E.SCALETTI,N.STRATER,N.P.WALKER,S.W.YOUNG,        
JRNL        AUTH 5 M.J.WALTERS,U.SCHINDLER,J.P.POWERS                           
JRNL        TITL   DISCOVERY OF AB680: A POTENT AND SELECTIVE INHIBITOR OF      
JRNL        TITL 2 CD73.                                                        
JRNL        REF    J.MED.CHEM.                   V.  63 11448 2020              
JRNL        REFN                   ISSN 0022-2623                               
JRNL        PMID   32614585                                                     
JRNL        DOI    10.1021/ACS.JMEDCHEM.0C00525                                 
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.17 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : BUSTER 2.10.3                                        
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) : 2.17                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 48.23                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : 0.000                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 99.2                           
REMARK   3   NUMBER OF REFLECTIONS             : 32496                          
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)  : 0.210                          
REMARK   3   R VALUE            (WORKING SET)  : 0.208                          
REMARK   3   FREE R VALUE                      : 0.263                          
REMARK   3   FREE R VALUE TEST SET SIZE   (%)  : 5.000                          
REMARK   3   FREE R VALUE TEST SET COUNT       : 1625                           
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               : 50                       
REMARK   3   BIN RESOLUTION RANGE HIGH   (ANGSTROMS) : 2.17                     
REMARK   3   BIN RESOLUTION RANGE LOW    (ANGSTROMS) : 2.18                     
REMARK   3   BIN COMPLETENESS (WORKING+TEST)     (%) : 86.41                    
REMARK   3   REFLECTIONS IN BIN (WORKING + TEST SET) : 650                      
REMARK   3   BIN R VALUE        (WORKING + TEST SET) : 0.2434                   
REMARK   3   REFLECTIONS IN BIN        (WORKING SET) : 618                      
REMARK   3   BIN R VALUE               (WORKING SET) : 0.2446                   
REMARK   3   BIN FREE R VALUE                        : 0.2175                   
REMARK   3   BIN FREE R VALUE TEST SET SIZE      (%) : 4.92                     
REMARK   3   BIN FREE R VALUE TEST SET COUNT         : 32                       
REMARK   3   ESTIMATED ERROR OF BIN FREE R VALUE     : 0.000                    
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 4064                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 38                                      
REMARK   3   SOLVENT ATOMS            : 285                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 32.78                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 42.75                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 2.53200                                              
REMARK   3    B22 (A**2) : -13.96480                                            
REMARK   3    B33 (A**2) : 11.43280                                             
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) : 0.330               
REMARK   3   DPI (BLOW EQ-10) BASED ON R VALUE        (A) : 0.260               
REMARK   3   DPI (BLOW EQ-9) BASED ON FREE R VALUE    (A) : 0.213               
REMARK   3   DPI (CRUICKSHANK) BASED ON R VALUE       (A) : 0.245               
REMARK   3   DPI (CRUICKSHANK) BASED ON FREE R VALUE  (A) : 0.210               
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      : 0.921                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.881                         
REMARK   3                                                                      
REMARK   3   NUMBER OF GEOMETRIC FUNCTION TERMS DEFINED : 15                    
REMARK   3   TERM                          COUNT    WEIGHT   FUNCTION.          
REMARK   3    BOND LENGTHS              : 4198   ; 2.000  ; HARMONIC            
REMARK   3    BOND ANGLES               : 5693   ; 2.000  ; HARMONIC            
REMARK   3    TORSION ANGLES            : 1464   ; 2.000  ; SINUSOIDAL          
REMARK   3    TRIGONAL CARBON PLANES    : NULL   ; NULL   ; NULL                
REMARK   3    GENERAL PLANES            : 730    ; 5.000  ; HARMONIC            
REMARK   3    ISOTROPIC THERMAL FACTORS : 4198   ; 20.000 ; HARMONIC            
REMARK   3    BAD NON-BONDED CONTACTS   : 0      ; 5.000  ; SEMIHARMONIC        
REMARK   3    IMPROPER TORSIONS         : NULL   ; NULL   ; NULL                
REMARK   3    PSEUDOROTATION ANGLES     : NULL   ; NULL   ; NULL                
REMARK   3    CHIRAL IMPROPER TORSION   : 536    ; 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   : 4960   ; 4.000  ; SEMIHARMONIC        
REMARK   3                                                                      
REMARK   3   RMS DEVIATIONS FROM IDEAL VALUES.                                  
REMARK   3    BOND LENGTHS                       (A) : 0.010                    
REMARK   3    BOND ANGLES                  (DEGREES) : 1.16                     
REMARK   3    PEPTIDE OMEGA TORSION ANGLES (DEGREES) : 3.48                     
REMARK   3    OTHER TORSION ANGLES         (DEGREES) : 20.13                    
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    SELECTION: {A|1 - A|333 A|601 - A|603}                            
REMARK   3    ORIGIN FOR THE GROUP (A):  -20.9740   21.1955  -16.2391           
REMARK   3    T TENSOR                                                          
REMARK   3     T11:   -0.1280 T22:    0.1221                                    
REMARK   3     T33:   -0.2224 T12:    0.0106                                    
REMARK   3     T13:    0.0015 T23:   -0.0266                                    
REMARK   3    L TENSOR                                                          
REMARK   3     L11:    1.0949 L22:    0.8672                                    
REMARK   3     L33:    2.0652 L12:   -0.2847                                    
REMARK   3     L13:    0.0944 L23:    0.0030                                    
REMARK   3    S TENSOR                                                          
REMARK   3     S11:    0.0383 S12:    0.1817 S13:    0.0147                     
REMARK   3     S21:    0.0332 S22:   -0.0614 S23:    0.0050                     
REMARK   3     S31:   -0.2127 S32:    0.0380 S33:    0.0231                     
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    SELECTION: {A|334 - A|549}                                        
REMARK   3    ORIGIN FOR THE GROUP (A):  -17.9552   18.9849  -48.4863           
REMARK   3    T TENSOR                                                          
REMARK   3     T11:   -0.2956 T22:    0.2298                                    
REMARK   3     T33:   -0.3040 T12:    0.0017                                    
REMARK   3     T13:    0.0264 T23:   -0.0151                                    
REMARK   3    L TENSOR                                                          
REMARK   3     L11:    0.8500 L22:    0.8165                                    
REMARK   3     L33:    5.9305 L12:    0.0537                                    
REMARK   3     L13:    0.4372 L23:    0.8588                                    
REMARK   3    S TENSOR                                                          
REMARK   3     S11:   -0.1372 S12:    0.1284 S13:    0.0095                     
REMARK   3     S21:    0.0359 S22:    0.2412 S23:   -0.0980                     
REMARK   3     S31:   -0.1219 S32:    0.5442 S33:   -0.1040                     
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 6Z9B COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 05-JUN-20.                  
REMARK 100 THE DEPOSITION ID IS D_1292109150.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 24-JUN-16                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 5.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : BESSY                              
REMARK 200  BEAMLINE                       : 14.1                               
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.91840                            
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          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 32496                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.170                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 48.230                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : NULL                               
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 99.2                               
REMARK 200  DATA REDUNDANCY                : 6.425                              
REMARK 200  R MERGE                    (I) : 0.22300                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 8.6100                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.17                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.30                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 96.4                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 6.04                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.83600                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.800                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS            
REMARK 200 SOFTWARE USED: BUSTER                                                
REMARK 200 STARTING MODEL: PDBID 4H2I                                           
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 51.71                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.55                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: CD73 AT 7 MG/ML WAS INCUBATED ON ICE     
REMARK 280  FOR ONE HOUR WITH 1MM OF THE INHIBITOR AND 0.1 MM ZNCL2. 1 UL OF    
REMARK 280  PROTEIN WAS MIXED WITH 1 UL OF 11-14% PEG6000 AND 100 MM SODIUM     
REMARK 280  CITRATE PH 5.4-5.6. FOR CRYOPROTECTION GLYCEROL WAS ADDED TO A      
REMARK 280  FINAL CONCENTRATION OF 15 % TO THE RESERVOIR BUFFER., PH 5.5,       
REMARK 280  VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K                     
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -X,-Y,Z+1/2                                             
REMARK 290       3555   -X,Y,-Z+1/2                                             
REMARK 290       4555   X,-Y,-Z                                                 
REMARK 290       5555   X+1/2,Y+1/2,Z                                           
REMARK 290       6555   -X+1/2,-Y+1/2,Z+1/2                                     
REMARK 290       7555   -X+1/2,Y+1/2,-Z+1/2                                     
REMARK 290       8555   X+1/2,-Y+1/2,-Z                                         
REMARK 290                                                                      
REMARK 290     WHERE NNN -> OPERATOR NUMBER                                     
REMARK 290           MMM -> TRANSLATION VECTOR                                  
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY TRANSFORMATIONS                            
REMARK 290 THE FOLLOWING TRANSFORMATIONS OPERATE ON THE ATOM/HETATM             
REMARK 290 RECORDS IN THIS ENTRY TO PRODUCE CRYSTALLOGRAPHICALLY                
REMARK 290 RELATED MOLECULES.                                                   
REMARK 290   SMTRY1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   2 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000      117.58500            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000      117.58500            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   4  0.000000  0.000000 -1.000000        0.00000            
REMARK 290   SMTRY1   5  1.000000  0.000000  0.000000       26.62000            
REMARK 290   SMTRY2   5  0.000000  1.000000  0.000000       48.22500            
REMARK 290   SMTRY3   5  0.000000  0.000000  1.000000        0.00000            
REMARK 290   SMTRY1   6 -1.000000  0.000000  0.000000       26.62000            
REMARK 290   SMTRY2   6  0.000000 -1.000000  0.000000       48.22500            
REMARK 290   SMTRY3   6  0.000000  0.000000  1.000000      117.58500            
REMARK 290   SMTRY1   7 -1.000000  0.000000  0.000000       26.62000            
REMARK 290   SMTRY2   7  0.000000  1.000000  0.000000       48.22500            
REMARK 290   SMTRY3   7  0.000000  0.000000 -1.000000      117.58500            
REMARK 290   SMTRY1   8  1.000000  0.000000  0.000000       26.62000            
REMARK 290   SMTRY2   8  0.000000 -1.000000  0.000000       48.22500            
REMARK 290   SMTRY3   8  0.000000  0.000000 -1.000000        0.00000            
REMARK 290                                                                      
REMARK 290 REMARK: NULL                                                         
REMARK 300                                                                      
REMARK 300 BIOMOLECULE: 1                                                       
REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM                
REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN                  
REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON               
REMARK 300 BURIED SURFACE AREA.                                                 
REMARK 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: DIMERIC                           
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 350   BIOMT1   2 -1.000000  0.000000  0.000000      -53.24000            
REMARK 350   BIOMT2   2  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   2  0.000000  0.000000 -1.000000     -117.58500            
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     ASP A   377                                                      
REMARK 465     GLU A   378                                                      
REMARK 465     MET A   379                                                      
REMARK 465     LEU A   550                                                      
REMARK 465     GLU A   551                                                      
REMARK 465     HIS A   552                                                      
REMARK 465     HIS A   553                                                      
REMARK 465     HIS A   554                                                      
REMARK 465     HIS A   555                                                      
REMARK 465     HIS A   556                                                      
REMARK 465     HIS A   557                                                      
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    VAL A  52      -68.62   -121.26                                   
REMARK 500    GLN A  88      127.31     75.44                                   
REMARK 500    LEU A 131      -61.93    -98.77                                   
REMARK 500    SER A 141      113.66   -176.29                                   
REMARK 500    SER A 155      125.43    -39.33                                   
REMARK 500    SER A 178      120.73    -38.16                                   
REMARK 500    SER A 185     -153.28   -134.87                                   
REMARK 500    HIS A 243      -38.57     73.26                                   
REMARK 500    SER A 255     -156.28   -131.06                                   
REMARK 500    TYR A 281     -122.05     57.88                                   
REMARK 500    ASN A 306      147.78   -179.92                                   
REMARK 500    ASN A 382      -41.10     71.71                                   
REMARK 500    ASP A 467       41.60   -145.05                                   
REMARK 500    CYS A 479      145.91   -170.66                                   
REMARK 500    LYS A 536      -57.24     70.96                                   
REMARK 500    TYR A 539       53.75   -152.71                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 525                                                                      
REMARK 525 SOLVENT                                                              
REMARK 525                                                                      
REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT                    
REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST                  
REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT                 
REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE                       
REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER;                             
REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE                  
REMARK 525 NUMBER; I=INSERTION CODE):                                           
REMARK 525                                                                      
REMARK 525  M RES CSSEQI                                                        
REMARK 525    HOH A 985        DISTANCE =  8.00 ANGSTROMS                       
REMARK 620                                                                      
REMARK 620 METAL COORDINATION                                                   
REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE):                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 601  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  36   OD2                                                    
REMARK 620 2 HIS A  38   NE2 126.5                                              
REMARK 620 3 ASP A  85   OD2  85.6 106.8                                        
REMARK 620 4 QCQ A 604   O3B 132.9  99.8  88.9                                  
REMARK 620 5 HOH A 714   O    88.2  95.6 156.0  78.5                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN A 602  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A  85   OD2                                                    
REMARK 620 2 ASN A 117   OD1 117.9                                              
REMARK 620 3 HIS A 220   NE2  85.5  94.4                                        
REMARK 620 4 HIS A 243   ND1 149.6  91.8  99.1                                  
REMARK 620 5 QCQ A 604   O2B  84.1  95.8 168.0  87.0                            
REMARK 620 N                    1     2     3     4                             
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              CA A 603  CA                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASN A 213   O                                                      
REMARK 620 2 ASP A 237   OD1 139.5                                              
REMARK 620 3 ASP A 237   OD2  89.1  50.7                                        
REMARK 620 4 GLY A 298   O    95.7  93.4  96.2                                  
REMARK 620 5 HOH A 790   O    87.8  83.8  83.8 176.5                            
REMARK 620 6 HOH A 912   O   101.8 116.2 162.2  96.5  82.7                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 800                                                                      
REMARK 800 SITE                                                                 
REMARK 800 SITE_IDENTIFIER: AC1                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 601                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue ZN A 602                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue CA A 603                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: binding site for residue QCQ A 604                 
DBREF  6Z9B A   27   549  UNP    P21589   5NTD_HUMAN      27    549             
SEQADV 6Z9B MET A   26  UNP  P21589              INITIATING METHIONINE          
SEQADV 6Z9B ASP A   53  UNP  P21589    ASN    53 ENGINEERED MUTATION            
SEQADV 6Z9B ASP A  311  UNP  P21589    ASN   311 ENGINEERED MUTATION            
SEQADV 6Z9B ASP A  333  UNP  P21589    ASN   333 ENGINEERED MUTATION            
SEQADV 6Z9B ALA A  376  UNP  P21589    THR   376 ENGINEERED MUTATION            
SEQADV 6Z9B ASP A  403  UNP  P21589    ASN   403 ENGINEERED MUTATION            
SEQADV 6Z9B LEU A  550  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B GLU A  551  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  552  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  553  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  554  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  555  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  556  UNP  P21589              EXPRESSION TAG                 
SEQADV 6Z9B HIS A  557  UNP  P21589              EXPRESSION TAG                 
SEQRES   1 A  532  MET TRP GLU LEU THR ILE LEU HIS THR ASN ASP VAL HIS          
SEQRES   2 A  532  SER ARG LEU GLU GLN THR SER GLU ASP SER SER LYS CYS          
SEQRES   3 A  532  VAL ASP ALA SER ARG CYS MET GLY GLY VAL ALA ARG LEU          
SEQRES   4 A  532  PHE THR LYS VAL GLN GLN ILE ARG ARG ALA GLU PRO ASN          
SEQRES   5 A  532  VAL LEU LEU LEU ASP ALA GLY ASP GLN TYR GLN GLY THR          
SEQRES   6 A  532  ILE TRP PHE THR VAL TYR LYS GLY ALA GLU VAL ALA HIS          
SEQRES   7 A  532  PHE MET ASN ALA LEU ARG TYR ASP ALA MET ALA LEU GLY          
SEQRES   8 A  532  ASN HIS GLU PHE ASP ASN GLY VAL GLU GLY LEU ILE GLU          
SEQRES   9 A  532  PRO LEU LEU LYS GLU ALA LYS PHE PRO ILE LEU SER ALA          
SEQRES  10 A  532  ASN ILE LYS ALA LYS GLY PRO LEU ALA SER GLN ILE SER          
SEQRES  11 A  532  GLY LEU TYR LEU PRO TYR LYS VAL LEU PRO VAL GLY ASP          
SEQRES  12 A  532  GLU VAL VAL GLY ILE VAL GLY TYR THR SER LYS GLU THR          
SEQRES  13 A  532  PRO PHE LEU SER ASN PRO GLY THR ASN LEU VAL PHE GLU          
SEQRES  14 A  532  ASP GLU ILE THR ALA LEU GLN PRO GLU VAL ASP LYS LEU          
SEQRES  15 A  532  LYS THR LEU ASN VAL ASN LYS ILE ILE ALA LEU GLY HIS          
SEQRES  16 A  532  SER GLY PHE GLU MET ASP LYS LEU ILE ALA GLN LYS VAL          
SEQRES  17 A  532  ARG GLY VAL ASP VAL VAL VAL GLY GLY HIS SER ASN THR          
SEQRES  18 A  532  PHE LEU TYR THR GLY ASN PRO PRO SER LYS GLU VAL PRO          
SEQRES  19 A  532  ALA GLY LYS TYR PRO PHE ILE VAL THR SER ASP ASP GLY          
SEQRES  20 A  532  ARG LYS VAL PRO VAL VAL GLN ALA TYR ALA PHE GLY LYS          
SEQRES  21 A  532  TYR LEU GLY TYR LEU LYS ILE GLU PHE ASP GLU ARG GLY          
SEQRES  22 A  532  ASN VAL ILE SER SER HIS GLY ASN PRO ILE LEU LEU ASP          
SEQRES  23 A  532  SER SER ILE PRO GLU ASP PRO SER ILE LYS ALA ASP ILE          
SEQRES  24 A  532  ASN LYS TRP ARG ILE LYS LEU ASP ASP TYR SER THR GLN          
SEQRES  25 A  532  GLU LEU GLY LYS THR ILE VAL TYR LEU ASP GLY SER SER          
SEQRES  26 A  532  GLN SER CYS ARG PHE ARG GLU CYS ASN MET GLY ASN LEU          
SEQRES  27 A  532  ILE CYS ASP ALA MET ILE ASN ASN ASN LEU ARG HIS ALA          
SEQRES  28 A  532  ASP GLU MET PHE TRP ASN HIS VAL SER MET CYS ILE LEU          
SEQRES  29 A  532  ASN GLY GLY GLY ILE ARG SER PRO ILE ASP GLU ARG ASN          
SEQRES  30 A  532  ASP GLY THR ILE THR TRP GLU ASN LEU ALA ALA VAL LEU          
SEQRES  31 A  532  PRO PHE GLY GLY THR PHE ASP LEU VAL GLN LEU LYS GLY          
SEQRES  32 A  532  SER THR LEU LYS LYS ALA PHE GLU HIS SER VAL HIS ARG          
SEQRES  33 A  532  TYR GLY GLN SER THR GLY GLU PHE LEU GLN VAL GLY GLY          
SEQRES  34 A  532  ILE HIS VAL VAL TYR ASP LEU SER ARG LYS PRO GLY ASP          
SEQRES  35 A  532  ARG VAL VAL LYS LEU ASP VAL LEU CYS THR LYS CYS ARG          
SEQRES  36 A  532  VAL PRO SER TYR ASP PRO LEU LYS MET ASP GLU VAL TYR          
SEQRES  37 A  532  LYS VAL ILE LEU PRO ASN PHE LEU ALA ASN GLY GLY ASP          
SEQRES  38 A  532  GLY PHE GLN MET ILE LYS ASP GLU LEU LEU ARG HIS ASP          
SEQRES  39 A  532  SER GLY ASP GLN ASP ILE ASN VAL VAL SER THR TYR ILE          
SEQRES  40 A  532  SER LYS MET LYS VAL ILE TYR PRO ALA VAL GLU GLY ARG          
SEQRES  41 A  532  ILE LYS PHE SER LEU GLU HIS HIS HIS HIS HIS HIS              
HET     ZN  A 601       1                                                       
HET     ZN  A 602       1                                                       
HET     CA  A 603       1                                                       
HET    QCQ  A 604      35                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      CA CALCIUM ION                                                      
HETNAM     QCQ [[(2~{R},3~{R},4~{S},5~{R})-5-[2-CHLORANYL-6-                    
HETNAM   2 QCQ  [(PHENYLMETHYL)AMINO]PURIN-9-YL]-4-FLUORANYL-3-                 
HETNAM   3 QCQ  OXIDANYL-OXOLAN-2-YL]METHOXY-OXIDANYL-                          
HETNAM   4 QCQ  PHOSPHORYL]METHYLPHOSPHONIC ACID                                
FORMUL   2   ZN    2(ZN 2+)                                                     
FORMUL   4   CA    CA 2+                                                        
FORMUL   5  QCQ    C18 H21 CL F N5 O8 P2                                        
FORMUL   6  HOH   *285(H2 O)                                                    
HELIX    1 AA1 ASP A   53  CYS A   57  5                                   5    
HELIX    2 AA2 GLY A   60  GLU A   75  1                                  16    
HELIX    3 AA3 THR A   90  LYS A   97  1                                   8    
HELIX    4 AA4 GLY A   98  ARG A  109  1                                  12    
HELIX    5 AA5 GLY A  116  ASP A  121  5                                   6    
HELIX    6 AA6 VAL A  124  GLU A  129  1                                   6    
HELIX    7 AA7 PRO A  149  SER A  155  1                                   7    
HELIX    8 AA8 GLU A  180  SER A  185  1                                   6    
HELIX    9 AA9 ASP A  195  LEU A  210  1                                  16    
HELIX   10 AB1 GLY A  222  VAL A  233  1                                  12    
HELIX   11 AB2 ASP A  317  ILE A  329  1                                  13    
HELIX   12 AB3 LYS A  330  SER A  335  5                                   6    
HELIX   13 AB4 SER A  349  ARG A  354  1                                   6    
HELIX   14 AB5 CYS A  358  ARG A  374  1                                  17    
HELIX   15 AB6 GLY A  392  ILE A  394  5                                   3    
HELIX   16 AB7 TRP A  408  LEU A  415  1                                   8    
HELIX   17 AB8 GLY A  428  VAL A  439  1                                  12    
HELIX   18 AB9 ASN A  499  ASN A  503  1                                   5    
HELIX   19 AC1 GLY A  504  GLY A  507  5                                   4    
HELIX   20 AC2 PHE A  508  LEU A  515  1                                   8    
HELIX   21 AC3 GLN A  523  LYS A  536  1                                  14    
SHEET    1 AA1 6 ILE A 139  LEU A 140  0                                        
SHEET    2 AA1 6 ALA A 112  ALA A 114  1  N  MET A 113   O  LEU A 140           
SHEET    3 AA1 6 ASN A  77  ASP A  82  1  N  ASP A  82   O  ALA A 114           
SHEET    4 AA1 6 TRP A  27  THR A  34  1  N  LEU A  32   O  LEU A  79           
SHEET    5 AA1 6 TYR A 286  PHE A 294 -1  O  LEU A 290   N  ILE A  31           
SHEET    6 AA1 6 VAL A 300  GLY A 305 -1  O  HIS A 304   N  LYS A 291           
SHEET    1 AA2 6 ILE A 139  LEU A 140  0                                        
SHEET    2 AA2 6 ALA A 112  ALA A 114  1  N  MET A 113   O  LEU A 140           
SHEET    3 AA2 6 ASN A  77  ASP A  82  1  N  ASP A  82   O  ALA A 114           
SHEET    4 AA2 6 TRP A  27  THR A  34  1  N  LEU A  32   O  LEU A  79           
SHEET    5 AA2 6 TYR A 286  PHE A 294 -1  O  LEU A 290   N  ILE A  31           
SHEET    6 AA2 6 ILE A 308  LEU A 309 -1  O  ILE A 308   N  LEU A 287           
SHEET    1 AA3 2 ILE A 144  ALA A 146  0                                        
SHEET    2 AA3 2 LEU A 191  PHE A 193 -1  O  VAL A 192   N  LYS A 145           
SHEET    1 AA4 6 TYR A 161  VAL A 166  0                                        
SHEET    2 AA4 6 GLU A 169  THR A 177 -1  O  GLU A 169   N  VAL A 166           
SHEET    3 AA4 6 ILE A 215  HIS A 220  1  O  LEU A 218   N  VAL A 174           
SHEET    4 AA4 6 VAL A 238  VAL A 240  1  O  VAL A 238   N  ALA A 217           
SHEET    5 AA4 6 LYS A 274  VAL A 278  1  O  VAL A 278   N  VAL A 239           
SHEET    6 AA4 6 PHE A 265  THR A 268 -1  N  VAL A 267   O  VAL A 275           
SHEET    1 AA5 3 THR A 405  THR A 407  0                                        
SHEET    2 AA5 3 GLU A 338  THR A 342 -1  N  LEU A 339   O  ILE A 406           
SHEET    3 AA5 3 VAL A 537  ILE A 538  1  O  ILE A 538   N  LYS A 341           
SHEET    1 AA6 5 LEU A 450  GLY A 453  0                                        
SHEET    2 AA6 5 MET A 386  ASN A 390 -1  N  LEU A 389   O  GLN A 451           
SHEET    3 AA6 5 VAL A 492  PRO A 498  1  O  ILE A 496   N  MET A 386           
SHEET    4 AA6 5 PHE A 421  LYS A 427 -1  N  LEU A 426   O  TYR A 493           
SHEET    5 AA6 5 ARG A 517  ASP A 519 -1  O  ASP A 519   N  LEU A 423           
SHEET    1 AA7 4 TYR A 484  PRO A 486  0                                        
SHEET    2 AA7 4 VAL A 469  LEU A 475 -1  N  VAL A 474   O  ASP A 485           
SHEET    3 AA7 4 ILE A 455  TYR A 459 -1  N  HIS A 456   O  ASP A 473           
SHEET    4 AA7 4 ILE A 546  PHE A 548  1  O  LYS A 547   N  TYR A 459           
SSBOND   1 CYS A   51    CYS A   57                          1555   1555  2.03  
SSBOND   2 CYS A  353    CYS A  358                          1555   1555  2.05  
SSBOND   3 CYS A  365    CYS A  387                          1555   1555  2.03  
SSBOND   4 CYS A  476    CYS A  479                          1555   1555  2.03  
LINK         OD2 ASP A  36                ZN    ZN A 601     1555   1555  2.12  
LINK         NE2 HIS A  38                ZN    ZN A 601     1555   1555  2.05  
LINK         OD2 ASP A  85                ZN    ZN A 601     1555   1555  2.35  
LINK         OD2 ASP A  85                ZN    ZN A 602     1555   1555  2.14  
LINK         OD1 ASN A 117                ZN    ZN A 602     1555   1555  2.15  
LINK         O   ASN A 213                CA    CA A 603     1555   1555  2.30  
LINK         NE2 HIS A 220                ZN    ZN A 602     1555   1555  2.13  
LINK         OD1 ASP A 237                CA    CA A 603     1555   1555  2.63  
LINK         OD2 ASP A 237                CA    CA A 603     1555   1555  2.54  
LINK         ND1 HIS A 243                ZN    ZN A 602     1555   1555  2.23  
LINK         O   GLY A 298                CA    CA A 603     1555   1555  2.37  
LINK        ZN    ZN A 601                 O3B QCQ A 604     1555   1555  2.14  
LINK        ZN    ZN A 601                 O   HOH A 714     1555   1555  2.14  
LINK        ZN    ZN A 602                 O2B QCQ A 604     1555   1555  1.93  
LINK        CA    CA A 603                 O   HOH A 790     1555   1555  2.52  
LINK        CA    CA A 603                 O   HOH A 912     1555   1555  2.80  
CISPEP   1 TYR A  263    PRO A  264          0        -2.09                     
SITE     1 AC1  5 ASP A  36  HIS A  38  ASP A  85  QCQ A 604                    
SITE     2 AC1  5 HOH A 714                                                     
SITE     1 AC2  5 ASP A  85  ASN A 117  HIS A 220  HIS A 243                    
SITE     2 AC2  5 QCQ A 604                                                     
SITE     1 AC3  5 ASN A 213  ASP A 237  GLY A 298  HOH A 790                    
SITE     2 AC3  5 HOH A 912                                                     
SITE     1 AC4 24 HIS A  38  ASP A  85  ASN A 117  HIS A 118                    
SITE     2 AC4 24 ASP A 121  LEU A 184  SER A 185  HIS A 243                    
SITE     3 AC4 24 ASN A 245  ARG A 354  ASN A 390  GLY A 392                    
SITE     4 AC4 24 ARG A 395  PHE A 417  GLY A 447  PHE A 500                    
SITE     5 AC4 24 ASP A 506   ZN A 601   ZN A 602  HOH A 714                    
SITE     6 AC4 24 HOH A 718  HOH A 738  HOH A 780  HOH A 800                    
CRYST1   53.240   96.450  235.170  90.00  90.00  90.00 C 2 2 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      0.018783  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.010368  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.004252        0.00000