HEADER    HYDROLASE                               06-OCT-04   1XOR              
TITLE     CATALYTIC DOMAIN OF HUMAN PHOSPHODIESTERASE 4D IN COMPLEX WITH        
TITLE    2 ZARDAVERINE                                                          
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE 4D;           
COMPND   3 CHAIN: A, B;                                                         
COMPND   4 FRAGMENT: CATALYTIC DOMAIN OF HUMAN PHOSPHODIESTERASE 4D;            
COMPND   5 SYNONYM: DPDE3, PDE43;                                               
COMPND   6 EC: 3.1.4.17;                                                        
COMPND   7 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: PDE4D;                                                         
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)CODON PLUS(RIL);                  
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET15B                                    
KEYWDS    PHOSPHODIESTERASE, PDE, PDE4D, ZARDAVERINE, HYDROLASE                 
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    G.L.CARD,B.P.ENGLAND,Y.SUZUKI,D.FONG,B.POWELL,B.LEE,C.LUU,            
AUTHOR   2 M.TABRIZIZAD,S.GILLETTE,P.N.IBRAHIM,D.R.ARTIS,G.BOLLAG,M.V.MILBURN,  
AUTHOR   3 S.-H.KIM,J.SCHLESSINGER,K.Y.J.ZHANG                                  
REVDAT   4   14-FEB-24 1XOR    1       REMARK SEQADV LINK                       
REVDAT   3   13-JUL-11 1XOR    1       VERSN                                    
REVDAT   2   24-FEB-09 1XOR    1       VERSN                                    
REVDAT   1   14-DEC-04 1XOR    0                                                
JRNL        AUTH   G.L.CARD,B.P.ENGLAND,Y.SUZUKI,D.FONG,B.POWELL,B.LEE,C.LUU,   
JRNL        AUTH 2 M.TABRIZIZAD,S.GILLETTE,P.N.IBRAHIM,D.R.ARTIS,G.BOLLAG,      
JRNL        AUTH 3 M.V.MILBURN,S.-H.KIM,J.SCHLESSINGER,K.Y.J.ZHANG              
JRNL        TITL   STRUCTURAL BASIS FOR THE ACTIVITY OF DRUGS THAT INHIBIT      
JRNL        TITL 2 PHOSPHODIESTERASES.                                          
JRNL        REF    STRUCTURE                     V.  12  2233 2004              
JRNL        REFN                   ISSN 0969-2126                               
JRNL        PMID   15576036                                                     
JRNL        DOI    10.1016/J.STR.2004.10.004                                    
REMARK   2                                                                      
REMARK   2 RESOLUTION.    1.54 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : REFMAC 5.1.25                                        
REMARK   3   AUTHORS     : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER,              
REMARK   3               : NICHOLLS,WINN,LONG,VAGIN                             
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : MAXIMUM LIKELIHOOD                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 1.54                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 81.65                          
REMARK   3   DATA CUTOFF            (SIGMA(F)) : NULL                           
REMARK   3   COMPLETENESS FOR RANGE        (%) : 97.9                           
REMARK   3   NUMBER OF REFLECTIONS             : 107189                         
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) : 0.179                           
REMARK   3   R VALUE            (WORKING SET) : 0.178                           
REMARK   3   FREE R VALUE                     : 0.195                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 5.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 5629                            
REMARK   3                                                                      
REMARK   3  FIT IN THE HIGHEST RESOLUTION BIN.                                  
REMARK   3   TOTAL NUMBER OF BINS USED           : 20                           
REMARK   3   BIN RESOLUTION RANGE HIGH       (A) : 1.54                         
REMARK   3   BIN RESOLUTION RANGE LOW        (A) : 1.58                         
REMARK   3   REFLECTION IN BIN     (WORKING SET) : 7556                         
REMARK   3   BIN COMPLETENESS (WORKING+TEST) (%) : NULL                         
REMARK   3   BIN R VALUE           (WORKING SET) : 0.3020                       
REMARK   3   BIN FREE R VALUE SET COUNT          : 417                          
REMARK   3   BIN FREE R VALUE                    : 0.3130                       
REMARK   3                                                                      
REMARK   3  NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT.                    
REMARK   3   PROTEIN ATOMS            : 5253                                    
REMARK   3   NUCLEIC ACID ATOMS       : 0                                       
REMARK   3   HETEROGEN ATOMS          : 42                                      
REMARK   3   SOLVENT ATOMS            : 653                                     
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   B VALUE TYPE : LIKELY RESIDUAL                                     
REMARK   3   FROM WILSON PLOT           (A**2) : NULL                           
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : 10.85                          
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : 0.80000                                              
REMARK   3    B22 (A**2) : 0.03000                                              
REMARK   3    B33 (A**2) : -0.84000                                             
REMARK   3    B12 (A**2) : 0.00000                                              
REMARK   3    B13 (A**2) : 0.00000                                              
REMARK   3    B23 (A**2) : 0.00000                                              
REMARK   3                                                                      
REMARK   3  ESTIMATED OVERALL COORDINATE ERROR.                                 
REMARK   3   ESU BASED ON R VALUE                            (A): 0.076         
REMARK   3   ESU BASED ON FREE R VALUE                       (A): 0.073         
REMARK   3   ESU BASED ON MAXIMUM LIKELIHOOD                 (A): 0.053         
REMARK   3   ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.505         
REMARK   3                                                                      
REMARK   3 CORRELATION COEFFICIENTS.                                            
REMARK   3   CORRELATION COEFFICIENT FO-FC      : 0.965                         
REMARK   3   CORRELATION COEFFICIENT FO-FC FREE : 0.960                         
REMARK   3                                                                      
REMARK   3  RMS DEVIATIONS FROM IDEAL VALUES        COUNT    RMS    WEIGHT      
REMARK   3   BOND LENGTHS REFINED ATOMS        (A):  5480 ; 0.007 ; 0.021       
REMARK   3   BOND LENGTHS OTHERS               (A):  4870 ; 0.002 ; 0.020       
REMARK   3   BOND ANGLES REFINED ATOMS   (DEGREES):  7444 ; 1.116 ; 1.961       
REMARK   3   BOND ANGLES OTHERS          (DEGREES): 11341 ; 1.010 ; 3.000       
REMARK   3   TORSION ANGLES, PERIOD 1    (DEGREES):   645 ; 2.734 ; 5.000       
REMARK   3   TORSION ANGLES, PERIOD 2    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 3    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   TORSION ANGLES, PERIOD 4    (DEGREES):  NULL ;  NULL ;  NULL       
REMARK   3   CHIRAL-CENTER RESTRAINTS       (A**3):   854 ; 0.079 ; 0.200       
REMARK   3   GENERAL PLANES REFINED ATOMS      (A):  6005 ; 0.005 ; 0.020       
REMARK   3   GENERAL PLANES OTHERS             (A):  1047 ; 0.005 ; 0.020       
REMARK   3   NON-BONDED CONTACTS REFINED ATOMS (A):  1330 ; 0.206 ; 0.200       
REMARK   3   NON-BONDED CONTACTS OTHERS        (A):  5642 ; 0.225 ; 0.200       
REMARK   3   NON-BONDED TORSION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   NON-BONDED TORSION OTHERS         (A):  2979 ; 0.081 ; 0.200       
REMARK   3   H-BOND (X...Y) REFINED ATOMS      (A):   483 ; 0.132 ; 0.200       
REMARK   3   H-BOND (X...Y) OTHERS             (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION REFINED ATOMS (A):  NULL ;  NULL ;  NULL       
REMARK   3   POTENTIAL METAL-ION OTHERS        (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY VDW REFINED ATOMS        (A):    10 ; 0.141 ; 0.200       
REMARK   3   SYMMETRY VDW OTHERS               (A):    66 ; 0.274 ; 0.200       
REMARK   3   SYMMETRY H-BOND REFINED ATOMS     (A):    27 ; 0.148 ; 0.200       
REMARK   3   SYMMETRY H-BOND OTHERS            (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION REFINED ATOMS  (A):  NULL ;  NULL ;  NULL       
REMARK   3   SYMMETRY METAL-ION OTHERS         (A):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  ISOTROPIC THERMAL FACTOR RESTRAINTS.     COUNT   RMS    WEIGHT      
REMARK   3   MAIN-CHAIN BOND REFINED ATOMS  (A**2):  3242 ; 0.375 ; 1.500       
REMARK   3   MAIN-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   MAIN-CHAIN ANGLE REFINED ATOMS (A**2):  5281 ; 0.778 ; 2.000       
REMARK   3   MAIN-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN BOND REFINED ATOMS  (A**2):  2238 ; 1.479 ; 3.000       
REMARK   3   SIDE-CHAIN BOND OTHER ATOMS    (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SIDE-CHAIN ANGLE REFINED ATOMS (A**2):  2163 ; 2.403 ; 4.500       
REMARK   3   SIDE-CHAIN ANGLE OTHER ATOMS   (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B REFINED ATOMS     (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   LONG RANGE B OTHER ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3 ANISOTROPIC THERMAL FACTOR RESTRAINTS.    COUNT   RMS   WEIGHT       
REMARK   3   RIGID-BOND RESTRAINTS          (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; FREE ATOMS         (A**2):  NULL ;  NULL ;  NULL       
REMARK   3   SPHERICITY; BONDED ATOMS       (A**2):  NULL ;  NULL ;  NULL       
REMARK   3                                                                      
REMARK   3  NCS RESTRAINTS STATISTICS                                           
REMARK   3   NUMBER OF DIFFERENT NCS GROUPS : NULL                              
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : 2                                          
REMARK   3                                                                      
REMARK   3   TLS GROUP : 1                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   A    88        A   411                          
REMARK   3    ORIGIN FOR THE GROUP (A):  15.3870   3.3210  53.8830              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0056 T22:   0.0503                                     
REMARK   3      T33:   0.0399 T12:  -0.0042                                     
REMARK   3      T13:   0.0146 T23:  -0.0197                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   0.6980 L22:   1.3824                                     
REMARK   3      L33:   2.2865 L12:   0.2129                                     
REMARK   3      L13:  -0.2787 L23:  -0.8797                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:   0.0044 S12:   0.0042 S13:  -0.0528                       
REMARK   3      S21:  -0.0011 S22:  -0.0218 S23:  -0.0819                       
REMARK   3      S31:  -0.0283 S32:   0.1156 S33:   0.0174                       
REMARK   3                                                                      
REMARK   3   TLS GROUP : 2                                                      
REMARK   3    NUMBER OF COMPONENTS GROUP : 1                                    
REMARK   3    COMPONENTS        C SSSEQI   TO  C SSSEQI                         
REMARK   3    RESIDUE RANGE :   B    86        B   412                          
REMARK   3    ORIGIN FOR THE GROUP (A):   3.3980   1.9400  15.2410              
REMARK   3    T TENSOR                                                          
REMARK   3      T11:   0.0788 T22:   0.0493                                     
REMARK   3      T33:   0.0417 T12:  -0.0289                                     
REMARK   3      T13:  -0.0105 T23:   0.0152                                     
REMARK   3    L TENSOR                                                          
REMARK   3      L11:   1.1499 L22:   1.0118                                     
REMARK   3      L33:   2.5450 L12:   0.2605                                     
REMARK   3      L13:  -0.7024 L23:  -0.0938                                     
REMARK   3    S TENSOR                                                          
REMARK   3      S11:  -0.0622 S12:   0.0959 S13:  -0.0216                       
REMARK   3      S21:  -0.0564 S22:   0.0473 S23:   0.0721                       
REMARK   3      S31:   0.2510 S32:  -0.1119 S33:   0.0149                       
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED : BABINET MODEL WITH MASK                              
REMARK   3   PARAMETERS FOR MASK CALCULATION                                    
REMARK   3   VDW PROBE RADIUS   : 1.40                                          
REMARK   3   ION PROBE RADIUS   : 0.80                                          
REMARK   3   SHRINKAGE RADIUS   : 0.80                                          
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: HYDROGENS HAVE BEEN ADDED IN THE RIDING   
REMARK   3  POSITIONS                                                           
REMARK   4                                                                      
REMARK   4 1XOR COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 22-NOV-04.                  
REMARK 100 THE DEPOSITION ID IS D_1000030589.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 28-AUG-03                          
REMARK 200  TEMPERATURE           (KELVIN) : 93                                 
REMARK 200  PH                             : 7.0                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : ALS                                
REMARK 200  BEAMLINE                       : 8.3.1                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 1.1                                
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM 210                   
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : BLU-ICE                            
REMARK 200  DATA SCALING SOFTWARE          : ELVES                              
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 107189                             
REMARK 200  RESOLUTION RANGE HIGH      (A) : 1.540                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 81.650                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : 0.000                              
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 97.9                               
REMARK 200  DATA REDUNDANCY                : 3.400                              
REMARK 200  R MERGE                    (I) : 0.06500                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 6.0000                             
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.54                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 1.58                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 93.6                               
REMARK 200  DATA REDUNDANCY IN SHELL       : 2.90                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.51000                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 1.500                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT        
REMARK 200 SOFTWARE USED: EPMR                                                  
REMARK 200 STARTING MODEL: NULL                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 48.93                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.41                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: PEG3350, ETHYLENE GLYCOL, ISOPROPANOL,   
REMARK 280  GLYCEROL AND DTT , PH 7.0, VAPOR DIFFUSION, SITTING DROP,           
REMARK 280  TEMPERATURE 288K                                                    
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       30.13950            
REMARK 290   SMTRY2   2  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       81.73550            
REMARK 290   SMTRY1   3 -1.000000  0.000000  0.000000        0.00000            
REMARK 290   SMTRY2   3  0.000000  1.000000  0.000000       39.20050            
REMARK 290   SMTRY3   3  0.000000  0.000000 -1.000000       81.73550            
REMARK 290   SMTRY1   4  1.000000  0.000000  0.000000       30.13950            
REMARK 290   SMTRY2   4  0.000000 -1.000000  0.000000       39.20050            
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 300 REMARK: THE BIOLOGICAL ASSEMBLY IS ONE MONOMER.                      
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 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 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     MET A    65                                                      
REMARK 465     GLY A    66                                                      
REMARK 465     SER A    67                                                      
REMARK 465     SER A    68                                                      
REMARK 465     HIS A    69                                                      
REMARK 465     HIS A    70                                                      
REMARK 465     HIS A    71                                                      
REMARK 465     HIS A    72                                                      
REMARK 465     HIS A    73                                                      
REMARK 465     HIS A    74                                                      
REMARK 465     SER A    75                                                      
REMARK 465     SER A    76                                                      
REMARK 465     GLY A    77                                                      
REMARK 465     LEU A    78                                                      
REMARK 465     VAL A    79                                                      
REMARK 465     PRO A    80                                                      
REMARK 465     ARG A    81                                                      
REMARK 465     GLY A    82                                                      
REMARK 465     SER A    83                                                      
REMARK 465     HIS A    84                                                      
REMARK 465     MET A    85                                                      
REMARK 465     THR A    86                                                      
REMARK 465     GLU A    87                                                      
REMARK 465     SER A   294                                                      
REMARK 465     SER A   295                                                      
REMARK 465     GLY A   296                                                      
REMARK 465     GLN A   412                                                      
REMARK 465     SER A   413                                                      
REMARK 465     MET B    65                                                      
REMARK 465     GLY B    66                                                      
REMARK 465     SER B    67                                                      
REMARK 465     SER B    68                                                      
REMARK 465     HIS B    69                                                      
REMARK 465     HIS B    70                                                      
REMARK 465     HIS B    71                                                      
REMARK 465     HIS B    72                                                      
REMARK 465     HIS B    73                                                      
REMARK 465     HIS B    74                                                      
REMARK 465     SER B    75                                                      
REMARK 465     SER B    76                                                      
REMARK 465     GLY B    77                                                      
REMARK 465     LEU B    78                                                      
REMARK 465     VAL B    79                                                      
REMARK 465     PRO B    80                                                      
REMARK 465     ARG B    81                                                      
REMARK 465     GLY B    82                                                      
REMARK 465     SER B    83                                                      
REMARK 465     HIS B    84                                                      
REMARK 465     MET B    85                                                      
REMARK 465     SER B   413                                                      
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT                     
REMARK 500                                                                      
REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT.                            
REMARK 500                                                                      
REMARK 500  ATM1  RES C  SSEQI   ATM2  RES C  SSEQI           DISTANCE          
REMARK 500   O    HOH A  1046     O    HOH A  1122              2.14            
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: COVALENT BOND ANGLES                                       
REMARK 500                                                                      
REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES              
REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE               
REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN               
REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                 
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1)              
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999                        
REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996                     
REMARK 500                                                                      
REMARK 500  M RES CSSEQI ATM1   ATM2   ATM3                                     
REMARK 500    ASP A 386   CB  -  CG  -  OD2 ANGL. DEV. =   5.8 DEGREES          
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 500                                                                      
REMARK 500 GEOMETRY AND STEREOCHEMISTRY                                         
REMARK 500 SUBTOPIC: TORSION ANGLES                                             
REMARK 500                                                                      
REMARK 500 TORSION ANGLES OUTSIDE THE EXPECTED RAMACHANDRAN REGIONS:            
REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER;               
REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE).                             
REMARK 500                                                                      
REMARK 500 STANDARD TABLE:                                                      
REMARK 500 FORMAT:(10X,I3,1X,A3,1X,A1,I4,A1,4X,F7.2,3X,F7.2)                    
REMARK 500                                                                      
REMARK 500 EXPECTED VALUES: GJ KLEYWEGT AND TA JONES (1996). PHI/PSI-           
REMARK 500 CHOLOGY: RAMACHANDRAN REVISITED. STRUCTURE 4, 1395 - 1400            
REMARK 500                                                                      
REMARK 500  M RES CSSEQI        PSI       PHI                                   
REMARK 500    ASP A 225       10.17     58.38                                   
REMARK 500    ILE A 376      -59.59   -125.13                                   
REMARK 500    SER B 227       55.37     39.88                                   
REMARK 500    ASP B 301      -61.40    -95.40                                   
REMARK 500    ILE B 376      -60.60   -124.63                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
REMARK 600                                                                      
REMARK 600 HETEROGEN                                                            
REMARK 600 ZAR IS ALSO KNOWN AS ZARDAVERINE.                                    
REMARK 600 HOH 1003-1007 ARE ASSOCIATED WITH CHAIN A.                           
REMARK 600 HOH 2003-2007 ARE ASSOCIATED WITH CHAIN B.                           
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 A1001  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 164   NE2                                                    
REMARK 620 2 HIS A 200   NE2  93.1                                              
REMARK 620 3 ASP A 201   OD2  88.0  85.5                                        
REMARK 620 4 ASP A 318   OD1  90.3  89.2 174.4                                  
REMARK 620 5 ZAR A 701   O1   92.6 174.3  93.4  92.0                            
REMARK 620 6 ZAR A 701   O1   94.5 170.1 101.1  84.4   7.8                      
REMARK 620 7 HOH A1007   O   172.9  94.0  92.0  90.4  80.3  78.5                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A1002  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 201   OD1                                                    
REMARK 620 2 HOH A1003   O    86.6                                              
REMARK 620 3 HOH A1004   O    84.8  91.5                                        
REMARK 620 4 HOH A1005   O   167.7  86.6  85.1                                  
REMARK 620 5 HOH A1006   O    98.2  85.6 175.7  91.5                            
REMARK 620 6 HOH A1007   O    95.9 172.6  95.7  92.1  87.1                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              ZN B1001  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS B 164   NE2                                                    
REMARK 620 2 HIS B 200   NE2  92.6                                              
REMARK 620 3 ASP B 201   OD2  89.8  85.7                                        
REMARK 620 4 ASP B 318   OD1  89.1  88.8 174.4                                  
REMARK 620 5 ZAR B 704   O1   93.4 167.6 105.2  80.4                            
REMARK 620 6 ZAR B 704   O1   92.3 175.2  93.9  91.7  11.4                      
REMARK 620 7 HOH B2007   O   170.9  96.6  91.1  90.9  77.6  78.6                
REMARK 620 N                    1     2     3     4     5     6                 
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG B1002  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP B 201   OD1                                                    
REMARK 620 2 HOH B2003   O    85.6                                              
REMARK 620 3 HOH B2004   O    84.1  90.1                                        
REMARK 620 4 HOH B2005   O   167.9  87.1  86.3                                  
REMARK 620 5 HOH B2006   O    98.8  89.1 176.9  90.7                            
REMARK 620 6 HOH B2007   O    95.5 173.2  96.7  92.9  84.1                      
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 1001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 1002                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN B 1001                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG B 1002                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZAR A 701                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC6                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZAR B 704                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 1XLX   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH CILOMILAST                                     
REMARK 900 RELATED ID: 1XLZ   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH FILAMINAST                                     
REMARK 900 RELATED ID: 1XM4   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH PICLAMILAST                                    
REMARK 900 RELATED ID: 1XM6   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH (R)-MESOPRAM                                   
REMARK 900 RELATED ID: 1XMU   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH ROFLUMILAST                                    
REMARK 900 RELATED ID: 1XMY   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH (R)-ROLIPRAM                                   
REMARK 900 RELATED ID: 1XN0   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH (R,S)-ROLIPRAM                                 
REMARK 900 RELATED ID: 1XOM   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH CILOMILAST                                     
REMARK 900 RELATED ID: 1XON   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH PICLAMILAST                                    
REMARK 900 RELATED ID: 1XOQ   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH ROFLUMILAST                                    
REMARK 900 RELATED ID: 1XOS   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH SILDENAFIL                                     
REMARK 900 RELATED ID: 1XOT   RELATED DB: PDB                                   
REMARK 900 PDE4B IN COMPLEX WITH VARDENAFIL                                     
REMARK 900 RELATED ID: 1XOZ   RELATED DB: PDB                                   
REMARK 900 PDE5A IN COMPLEX WITH TADALAFIL                                      
REMARK 900 RELATED ID: 1XP0   RELATED DB: PDB                                   
REMARK 900 PDE5A IN COMPLEX WITH VARDENAFIL                                     
DBREF  1XOR A   86   413  UNP    Q08499   PDE4D_HUMAN    388    715             
DBREF  1XOR B   86   413  UNP    Q08499   PDE4D_HUMAN    388    715             
SEQADV 1XOR MET A   65  UNP  Q08499              INITIATING METHIONINE          
SEQADV 1XOR GLY A   66  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER A   67  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER A   68  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR HIS A   69  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS A   70  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS A   71  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS A   72  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS A   73  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS A   74  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR SER A   75  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER A   76  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR GLY A   77  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR LEU A   78  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR VAL A   79  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR PRO A   80  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR ARG A   81  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR GLY A   82  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER A   83  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR HIS A   84  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR MET A   85  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR MET B   65  UNP  Q08499              INITIATING METHIONINE          
SEQADV 1XOR GLY B   66  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER B   67  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER B   68  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR HIS B   69  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS B   70  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS B   71  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS B   72  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS B   73  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR HIS B   74  UNP  Q08499              EXPRESSION TAG                 
SEQADV 1XOR SER B   75  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER B   76  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR GLY B   77  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR LEU B   78  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR VAL B   79  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR PRO B   80  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR ARG B   81  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR GLY B   82  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR SER B   83  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR HIS B   84  UNP  Q08499              CLONING ARTIFACT               
SEQADV 1XOR MET B   85  UNP  Q08499              CLONING ARTIFACT               
SEQRES   1 A  349  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  349  LEU VAL PRO ARG GLY SER HIS MET THR GLU GLN GLU ASP          
SEQRES   3 A  349  VAL LEU ALA LYS GLU LEU GLU ASP VAL ASN LYS TRP GLY          
SEQRES   4 A  349  LEU HIS VAL PHE ARG ILE ALA GLU LEU SER GLY ASN ARG          
SEQRES   5 A  349  PRO LEU THR VAL ILE MET HIS THR ILE PHE GLN GLU ARG          
SEQRES   6 A  349  ASP LEU LEU LYS THR PHE LYS ILE PRO VAL ASP THR LEU          
SEQRES   7 A  349  ILE THR TYR LEU MET THR LEU GLU ASP HIS TYR HIS ALA          
SEQRES   8 A  349  ASP VAL ALA TYR HIS ASN ASN ILE HIS ALA ALA ASP VAL          
SEQRES   9 A  349  VAL GLN SER THR HIS VAL LEU LEU SER THR PRO ALA LEU          
SEQRES  10 A  349  GLU ALA VAL PHE THR ASP LEU GLU ILE LEU ALA ALA ILE          
SEQRES  11 A  349  PHE ALA SER ALA ILE HIS ASP VAL ASP HIS PRO GLY VAL          
SEQRES  12 A  349  SER ASN GLN PHE LEU ILE ASN THR ASN SER GLU LEU ALA          
SEQRES  13 A  349  LEU MET TYR ASN ASP SER SER VAL LEU GLU ASN HIS HIS          
SEQRES  14 A  349  LEU ALA VAL GLY PHE LYS LEU LEU GLN GLU GLU ASN CYS          
SEQRES  15 A  349  ASP ILE PHE GLN ASN LEU THR LYS LYS GLN ARG GLN SER          
SEQRES  16 A  349  LEU ARG LYS MET VAL ILE ASP ILE VAL LEU ALA THR ASP          
SEQRES  17 A  349  MET SER LYS HIS MET ASN LEU LEU ALA ASP LEU LYS THR          
SEQRES  18 A  349  MET VAL GLU THR LYS LYS VAL THR SER SER GLY VAL LEU          
SEQRES  19 A  349  LEU LEU ASP ASN TYR SER ASP ARG ILE GLN VAL LEU GLN          
SEQRES  20 A  349  ASN MET VAL HIS CYS ALA ASP LEU SER ASN PRO THR LYS          
SEQRES  21 A  349  PRO LEU GLN LEU TYR ARG GLN TRP THR ASP ARG ILE MET          
SEQRES  22 A  349  GLU GLU PHE PHE ARG GLN GLY ASP ARG GLU ARG GLU ARG          
SEQRES  23 A  349  GLY MET GLU ILE SER PRO MET CYS ASP LYS HIS ASN ALA          
SEQRES  24 A  349  SER VAL GLU LYS SER GLN VAL GLY PHE ILE ASP TYR ILE          
SEQRES  25 A  349  VAL HIS PRO LEU TRP GLU THR TRP ALA ASP LEU VAL HIS          
SEQRES  26 A  349  PRO ASP ALA GLN ASP ILE LEU ASP THR LEU GLU ASP ASN          
SEQRES  27 A  349  ARG GLU TRP TYR GLN SER THR ILE PRO GLN SER                  
SEQRES   1 B  349  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 B  349  LEU VAL PRO ARG GLY SER HIS MET THR GLU GLN GLU ASP          
SEQRES   3 B  349  VAL LEU ALA LYS GLU LEU GLU ASP VAL ASN LYS TRP GLY          
SEQRES   4 B  349  LEU HIS VAL PHE ARG ILE ALA GLU LEU SER GLY ASN ARG          
SEQRES   5 B  349  PRO LEU THR VAL ILE MET HIS THR ILE PHE GLN GLU ARG          
SEQRES   6 B  349  ASP LEU LEU LYS THR PHE LYS ILE PRO VAL ASP THR LEU          
SEQRES   7 B  349  ILE THR TYR LEU MET THR LEU GLU ASP HIS TYR HIS ALA          
SEQRES   8 B  349  ASP VAL ALA TYR HIS ASN ASN ILE HIS ALA ALA ASP VAL          
SEQRES   9 B  349  VAL GLN SER THR HIS VAL LEU LEU SER THR PRO ALA LEU          
SEQRES  10 B  349  GLU ALA VAL PHE THR ASP LEU GLU ILE LEU ALA ALA ILE          
SEQRES  11 B  349  PHE ALA SER ALA ILE HIS ASP VAL ASP HIS PRO GLY VAL          
SEQRES  12 B  349  SER ASN GLN PHE LEU ILE ASN THR ASN SER GLU LEU ALA          
SEQRES  13 B  349  LEU MET TYR ASN ASP SER SER VAL LEU GLU ASN HIS HIS          
SEQRES  14 B  349  LEU ALA VAL GLY PHE LYS LEU LEU GLN GLU GLU ASN CYS          
SEQRES  15 B  349  ASP ILE PHE GLN ASN LEU THR LYS LYS GLN ARG GLN SER          
SEQRES  16 B  349  LEU ARG LYS MET VAL ILE ASP ILE VAL LEU ALA THR ASP          
SEQRES  17 B  349  MET SER LYS HIS MET ASN LEU LEU ALA ASP LEU LYS THR          
SEQRES  18 B  349  MET VAL GLU THR LYS LYS VAL THR SER SER GLY VAL LEU          
SEQRES  19 B  349  LEU LEU ASP ASN TYR SER ASP ARG ILE GLN VAL LEU GLN          
SEQRES  20 B  349  ASN MET VAL HIS CYS ALA ASP LEU SER ASN PRO THR LYS          
SEQRES  21 B  349  PRO LEU GLN LEU TYR ARG GLN TRP THR ASP ARG ILE MET          
SEQRES  22 B  349  GLU GLU PHE PHE ARG GLN GLY ASP ARG GLU ARG GLU ARG          
SEQRES  23 B  349  GLY MET GLU ILE SER PRO MET CYS ASP LYS HIS ASN ALA          
SEQRES  24 B  349  SER VAL GLU LYS SER GLN VAL GLY PHE ILE ASP TYR ILE          
SEQRES  25 B  349  VAL HIS PRO LEU TRP GLU THR TRP ALA ASP LEU VAL HIS          
SEQRES  26 B  349  PRO ASP ALA GLN ASP ILE LEU ASP THR LEU GLU ASP ASN          
SEQRES  27 B  349  ARG GLU TRP TYR GLN SER THR ILE PRO GLN SER                  
HET     ZN  A1001       1                                                       
HET     MG  A1002       1                                                       
HET    ZAR  A 701      57                                                       
HET     ZN  B1001       1                                                       
HET     MG  B1002       1                                                       
HET    ZAR  B 704      57                                                       
HETNAM      ZN ZINC ION                                                         
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     ZAR 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-           
HETNAM   2 ZAR  ONE                                                             
FORMUL   3   ZN    2(ZN 2+)                                                     
FORMUL   4   MG    2(MG 2+)                                                     
FORMUL   5  ZAR    2(C12 H10 F2 N2 O3)                                          
FORMUL   9  HOH   *653(H2 O)                                                    
HELIX    1   1 GLN A   88  GLU A   97  1                                  10    
HELIX    2   2 HIS A  105  SER A  113  1                                   9    
HELIX    3   3 ARG A  116  ARG A  129  1                                  14    
HELIX    4   4 ASP A  130  PHE A  135  1                                   6    
HELIX    5   5 PRO A  138  HIS A  152  1                                  15    
HELIX    6   6 ASN A  161  SER A  177  1                                  17    
HELIX    7   7 THR A  178  GLU A  182  5                                   5    
HELIX    8   8 THR A  186  HIS A  200  1                                  15    
HELIX    9   9 SER A  208  THR A  215  1                                   8    
HELIX   10  10 SER A  217  ASN A  224  1                                   8    
HELIX   11  11 SER A  227  LEU A  240  1                                  14    
HELIX   12  12 LEU A  241  GLU A  243  5                                   3    
HELIX   13  13 THR A  253  ALA A  270  1                                  18    
HELIX   14  14 THR A  271  SER A  274  5                                   4    
HELIX   15  15 LYS A  275  THR A  289  1                                  15    
HELIX   16  16 ASN A  302  LEU A  319  1                                  18    
HELIX   17  17 SER A  320  LYS A  324  5                                   5    
HELIX   18  18 PRO A  325  ARG A  350  1                                  26    
HELIX   19  19 SER A  364  ILE A  376  1                                  13    
HELIX   20  20 ILE A  376  VAL A  388  1                                  13    
HELIX   21  21 ALA A  392  ILE A  410  1                                  19    
HELIX   22  22 THR B   86  LEU B   96  1                                  11    
HELIX   23  23 GLU B   97  VAL B   99  5                                   3    
HELIX   24  24 HIS B  105  SER B  113  1                                   9    
HELIX   25  25 ARG B  116  ARG B  129  1                                  14    
HELIX   26  26 ASP B  130  PHE B  135  1                                   6    
HELIX   27  27 PRO B  138  HIS B  152  1                                  15    
HELIX   28  28 ASN B  161  SER B  177  1                                  17    
HELIX   29  29 THR B  178  GLU B  182  5                                   5    
HELIX   30  30 THR B  186  HIS B  200  1                                  15    
HELIX   31  31 SER B  208  THR B  215  1                                   8    
HELIX   32  32 SER B  217  ASN B  224  1                                   8    
HELIX   33  33 SER B  227  LEU B  240  1                                  14    
HELIX   34  34 LEU B  241  GLU B  243  5                                   3    
HELIX   35  35 THR B  253  ALA B  270  1                                  18    
HELIX   36  36 THR B  271  SER B  274  5                                   4    
HELIX   37  37 LYS B  275  THR B  289  1                                  15    
HELIX   38  38 ASN B  302  LEU B  319  1                                  18    
HELIX   39  39 SER B  320  LYS B  324  5                                   5    
HELIX   40  40 PRO B  325  ARG B  350  1                                  26    
HELIX   41  41 SER B  364  ILE B  376  1                                  13    
HELIX   42  42 ILE B  376  VAL B  388  1                                  13    
HELIX   43  43 ALA B  392  THR B  409  1                                  18    
LINK         NE2 HIS A 164                ZN    ZN A1001     1555   1555  2.18  
LINK         NE2 HIS A 200                ZN    ZN A1001     1555   1555  2.20  
LINK         OD2 ASP A 201                ZN    ZN A1001     1555   1555  2.13  
LINK         OD1 ASP A 201                MG    MG A1002     1555   1555  2.09  
LINK         OD1 ASP A 318                ZN    ZN A1001     1555   1555  2.15  
LINK         O1 AZAR A 701                ZN    ZN A1001     1555   1555  2.16  
LINK         O1 BZAR A 701                ZN    ZN A1001     1555   1555  2.15  
LINK        ZN    ZN A1001                 O   HOH A1007     1555   1555  2.15  
LINK        MG    MG A1002                 O   HOH A1003     1555   1555  2.19  
LINK        MG    MG A1002                 O   HOH A1004     1555   1555  2.13  
LINK        MG    MG A1002                 O   HOH A1005     1555   1555  2.18  
LINK        MG    MG A1002                 O   HOH A1006     1555   1555  2.09  
LINK        MG    MG A1002                 O   HOH A1007     1555   1555  2.10  
LINK         NE2 HIS B 164                ZN    ZN B1001     1555   1555  2.18  
LINK         NE2 HIS B 200                ZN    ZN B1001     1555   1555  2.22  
LINK         OD2 ASP B 201                ZN    ZN B1001     1555   1555  2.10  
LINK         OD1 ASP B 201                MG    MG B1002     1555   1555  2.08  
LINK         OD1 ASP B 318                ZN    ZN B1001     1555   1555  2.15  
LINK         O1 BZAR B 704                ZN    ZN B1001     1555   1555  2.11  
LINK         O1 AZAR B 704                ZN    ZN B1001     1555   1555  2.16  
LINK        ZN    ZN B1001                 O   HOH B2007     1555   1555  2.14  
LINK        MG    MG B1002                 O   HOH B2003     1555   1555  2.15  
LINK        MG    MG B1002                 O   HOH B2004     1555   1555  2.14  
LINK        MG    MG B1002                 O   HOH B2005     1555   1555  2.12  
LINK        MG    MG B1002                 O   HOH B2006     1555   1555  2.07  
LINK        MG    MG B1002                 O   HOH B2007     1555   1555  2.11  
CISPEP   1 HIS A  389    PRO A  390          0         1.49                     
CISPEP   2 HIS B  389    PRO B  390          0        -0.34                     
SITE     1 AC1  6 HIS A 164  HIS A 200  ASP A 201  ASP A 318                    
SITE     2 AC1  6 ZAR A 701  HOH A1007                                          
SITE     1 AC2  6 ASP A 201  HOH A1003  HOH A1004  HOH A1005                    
SITE     2 AC2  6 HOH A1006  HOH A1007                                          
SITE     1 AC3  6 HIS B 164  HIS B 200  ASP B 201  ASP B 318                    
SITE     2 AC3  6 ZAR B 704  HOH B2007                                          
SITE     1 AC4  6 ASP B 201  HOH B2003  HOH B2004  HOH B2005                    
SITE     2 AC4  6 HOH B2006  HOH B2007                                          
SITE     1 AC5 21 TYR A 159  HIS A 160  HIS A 164  ASP A 201                    
SITE     2 AC5 21 MET A 273  ASP A 318  ASN A 321  PRO A 322                    
SITE     3 AC5 21 TYR A 329  TRP A 332  THR A 333  ILE A 336                    
SITE     4 AC5 21 PHE A 340  MET A 357  SER A 368  GLN A 369                    
SITE     5 AC5 21 PHE A 372   ZN A1001  HOH A1006  HOH A1007                    
SITE     6 AC5 21 HOH A1283                                                     
SITE     1 AC6 22 TYR B 159  HIS B 160  HIS B 164  ASP B 201                    
SITE     2 AC6 22 ASP B 318  ASN B 321  PRO B 322  TYR B 329                    
SITE     3 AC6 22 TRP B 332  THR B 333  ILE B 336  PHE B 340                    
SITE     4 AC6 22 MET B 357  SER B 368  GLN B 369  PHE B 372                    
SITE     5 AC6 22  ZN B1001  HOH B2006  HOH B2007  HOH B2131                    
SITE     6 AC6 22 HOH B2271  HOH B2277                                          
CRYST1   60.279   78.401  163.471  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      0.016590  0.000000  0.000000        0.00000                         
SCALE2      0.000000  0.012755  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.006117        0.00000