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Database: PDB
Entry: 4I9Z
LinkDB: 4I9Z
Original site: 4I9Z 
HEADER    HYDROLASE/HYDROLASE INHIBITOR           05-DEC-12   4I9Z              
TITLE     CRYSTAL STRUCTURE OF THE PDE5A1 CATALYTIC DOMAIN IN COMPLEX WITH NOVEL
TITLE    2 INHIBITORS                                                           
COMPND    MOL_ID: 1;                                                            
COMPND   2 MOLECULE: CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE;              
COMPND   3 CHAIN: A;                                                            
COMPND   4 FRAGMENT: UNP RESIDUES 535-860;                                      
COMPND   5 SYNONYM: CGMP-BINDING CGMP-SPECIFIC PHOSPHODIESTERASE, CGB-PDE;      
COMPND   6 EC: 3.1.4.35;                                                        
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: PDE5, PDE5A;                                                   
SOURCE   6 EXPRESSION_SYSTEM: ESCHERICHIA COLI;                                 
SOURCE   7 EXPRESSION_SYSTEM_TAXID: 562;                                        
SOURCE   8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3);                                 
SOURCE   9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID;                              
SOURCE  10 EXPRESSION_SYSTEM_PLASMID: PET15B                                    
KEYWDS    HYDROLASE, HYDROLASE-HYDROLASE INHIBITOR COMPLEX                      
EXPDTA    X-RAY DIFFRACTION                                                     
AUTHOR    J.REN,T.CHEN,Y.XU                                                     
REVDAT   2   08-NOV-23 4I9Z    1       REMARK SEQADV LINK                       
REVDAT   1   01-JAN-14 4I9Z    0                                                
JRNL        AUTH   X.GONG,G.WANG,J.REN,Z.LIU,Z.WANG,T.CHEN,X.YANG,X.JIANG,      
JRNL        AUTH 2 J.SHEN,H.JIANG,H.A.AISA,Y.XU,J.LI                            
JRNL        TITL   EXPLORATION OF THE 5-BROMOPYRIMIDIN-4(3H)-ONES AS POTENT     
JRNL        TITL 2 INHIBITORS OF PDE5.                                          
JRNL        REF    BIOORG.MED.CHEM.LETT.         V.  23  4944 2013              
JRNL        REFN                   ISSN 0960-894X                               
JRNL        PMID   23867165                                                     
JRNL        DOI    10.1016/J.BMCL.2013.06.062                                   
REMARK   2                                                                      
REMARK   2 RESOLUTION.    2.08 ANGSTROMS.                                       
REMARK   3                                                                      
REMARK   3 REFINEMENT.                                                          
REMARK   3   PROGRAM     : PHENIX 1.8_1069                                      
REMARK   3   AUTHORS     : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN            
REMARK   3               : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE,           
REMARK   3               : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER,            
REMARK   3               : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY,              
REMARK   3               : REETAL PAI,RANDY READ,JANE RICHARDSON,               
REMARK   3               : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI,           
REMARK   3               : NICHOLAS SAUTER,JACOB SMITH,LAURENT                  
REMARK   3               : STORONI,TOM TERWILLIGER,PETER ZWART                  
REMARK   3                                                                      
REMARK   3    REFINEMENT TARGET : ML                                            
REMARK   3                                                                      
REMARK   3  DATA USED IN REFINEMENT.                                            
REMARK   3   RESOLUTION RANGE HIGH (ANGSTROMS) : 2.08                           
REMARK   3   RESOLUTION RANGE LOW  (ANGSTROMS) : 46.30                          
REMARK   3   MIN(FOBS/SIGMA_FOBS)              : 2.010                          
REMARK   3   COMPLETENESS FOR RANGE        (%) : 98.8                           
REMARK   3   NUMBER OF REFLECTIONS             : 26096                          
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT.                                     
REMARK   3   R VALUE     (WORKING + TEST SET) : 0.202                           
REMARK   3   R VALUE            (WORKING SET) : 0.201                           
REMARK   3   FREE R VALUE                     : 0.237                           
REMARK   3   FREE R VALUE TEST SET SIZE   (%) : 3.000                           
REMARK   3   FREE R VALUE TEST SET COUNT      : 783                             
REMARK   3                                                                      
REMARK   3  FIT TO DATA USED IN REFINEMENT (IN BINS).                           
REMARK   3   BIN  RESOLUTION RANGE  COMPL.    NWORK NFREE   RWORK  RFREE        
REMARK   3     1 46.3065 -  3.7790    0.97     4320   134  0.2018 0.2194        
REMARK   3     2  3.7790 -  2.9997    0.98     4218   131  0.1984 0.2110        
REMARK   3     3  2.9997 -  2.6205    0.99     4217   130  0.2082 0.2735        
REMARK   3     4  2.6205 -  2.3810    0.99     4204   130  0.2005 0.2544        
REMARK   3     5  2.3810 -  2.2103    1.00     4201   130  0.1977 0.2709        
REMARK   3     6  2.2103 -  2.0800    1.00     4153   128  0.1966 0.2695        
REMARK   3                                                                      
REMARK   3  BULK SOLVENT MODELLING.                                             
REMARK   3   METHOD USED        : FLAT BULK SOLVENT MODEL                       
REMARK   3   SOLVENT RADIUS     : 1.11                                          
REMARK   3   SHRINKAGE RADIUS   : 0.90                                          
REMARK   3   K_SOL              : NULL                                          
REMARK   3   B_SOL              : NULL                                          
REMARK   3                                                                      
REMARK   3  ERROR ESTIMATES.                                                    
REMARK   3   COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED)     : 0.230            
REMARK   3   PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 23.200           
REMARK   3                                                                      
REMARK   3  B VALUES.                                                           
REMARK   3   FROM WILSON PLOT           (A**2) : 35.23                          
REMARK   3   MEAN B VALUE      (OVERALL, A**2) : NULL                           
REMARK   3   OVERALL ANISOTROPIC B VALUE.                                       
REMARK   3    B11 (A**2) : NULL                                                 
REMARK   3    B22 (A**2) : NULL                                                 
REMARK   3    B33 (A**2) : NULL                                                 
REMARK   3    B12 (A**2) : NULL                                                 
REMARK   3    B13 (A**2) : NULL                                                 
REMARK   3    B23 (A**2) : NULL                                                 
REMARK   3                                                                      
REMARK   3  TWINNING INFORMATION.                                               
REMARK   3   FRACTION: NULL                                                     
REMARK   3   OPERATOR: NULL                                                     
REMARK   3                                                                      
REMARK   3  DEVIATIONS FROM IDEAL VALUES.                                       
REMARK   3                 RMSD          COUNT                                  
REMARK   3   BOND      :  0.008           2457                                  
REMARK   3   ANGLE     :  1.109           3319                                  
REMARK   3   CHIRALITY :  0.079            376                                  
REMARK   3   PLANARITY :  0.005            418                                  
REMARK   3   DIHEDRAL  : 17.003            913                                  
REMARK   3                                                                      
REMARK   3  TLS DETAILS                                                         
REMARK   3   NUMBER OF TLS GROUPS  : NULL                                       
REMARK   3                                                                      
REMARK   3  NCS DETAILS                                                         
REMARK   3   NUMBER OF NCS GROUPS : NULL                                        
REMARK   3                                                                      
REMARK   3  OTHER REFINEMENT REMARKS: NULL                                      
REMARK   4                                                                      
REMARK   4 4I9Z COMPLIES WITH FORMAT V. 3.30, 13-JUL-11                         
REMARK 100                                                                      
REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 25-DEC-12.                  
REMARK 100 THE DEPOSITION ID IS D_1000076490.                                   
REMARK 200                                                                      
REMARK 200 EXPERIMENTAL DETAILS                                                 
REMARK 200  EXPERIMENT TYPE                : X-RAY DIFFRACTION                  
REMARK 200  DATE OF DATA COLLECTION        : 21-JUL-11                          
REMARK 200  TEMPERATURE           (KELVIN) : 100                                
REMARK 200  PH                             : 7.5                                
REMARK 200  NUMBER OF CRYSTALS USED        : 1                                  
REMARK 200                                                                      
REMARK 200  SYNCHROTRON              (Y/N) : Y                                  
REMARK 200  RADIATION SOURCE               : SSRF                               
REMARK 200  BEAMLINE                       : BL17U                              
REMARK 200  X-RAY GENERATOR MODEL          : NULL                               
REMARK 200  MONOCHROMATIC OR LAUE    (M/L) : M                                  
REMARK 200  WAVELENGTH OR RANGE        (A) : 0.979                              
REMARK 200  MONOCHROMATOR                  : NULL                               
REMARK 200  OPTICS                         : NULL                               
REMARK 200                                                                      
REMARK 200  DETECTOR TYPE                  : CCD                                
REMARK 200  DETECTOR MANUFACTURER          : ADSC QUANTUM Q315R                 
REMARK 200  INTENSITY-INTEGRATION SOFTWARE : XDS                                
REMARK 200  DATA SCALING SOFTWARE          : XSCALE                             
REMARK 200                                                                      
REMARK 200  NUMBER OF UNIQUE REFLECTIONS   : 26096                              
REMARK 200  RESOLUTION RANGE HIGH      (A) : 2.080                              
REMARK 200  RESOLUTION RANGE LOW       (A) : 46.300                             
REMARK 200  REJECTION CRITERIA  (SIGMA(I)) : -3.000                             
REMARK 200                                                                      
REMARK 200 OVERALL.                                                             
REMARK 200  COMPLETENESS FOR RANGE     (%) : 98.8                               
REMARK 200  DATA REDUNDANCY                : NULL                               
REMARK 200  R MERGE                    (I) : 0.06100                            
REMARK 200  R SYM                      (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR THE DATA SET  : 20.4000                            
REMARK 200                                                                      
REMARK 200 IN THE HIGHEST RESOLUTION SHELL.                                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.08                     
REMARK 200  HIGHEST RESOLUTION SHELL, RANGE LOW  (A) : 2.13                     
REMARK 200  COMPLETENESS FOR SHELL     (%) : 99.7                               
REMARK 200  DATA REDUNDANCY IN SHELL       : NULL                               
REMARK 200  R MERGE FOR SHELL          (I) : 0.32800                            
REMARK 200  R SYM FOR SHELL            (I) : NULL                               
REMARK 200  <I/SIGMA(I)> FOR SHELL         : 5.010                              
REMARK 200                                                                      
REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH                              
REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL                         
REMARK 200 SOFTWARE USED: PHASER                                                
REMARK 200 STARTING MODEL: 3SIE                                                 
REMARK 200                                                                      
REMARK 200 REMARK: NULL                                                         
REMARK 280                                                                      
REMARK 280 CRYSTAL                                                              
REMARK 280 SOLVENT CONTENT, VS   (%): 53.90                                     
REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.67                     
REMARK 280                                                                      
REMARK 280 CRYSTALLIZATION CONDITIONS: 19-20%(W/V) PEG 3350, 200MM MGSO4,       
REMARK 280  100MM TRIS-HCL, PH 7.5, VAPOR DIFFUSION, HANGING DROP,              
REMARK 280  TEMPERATURE 293K                                                    
REMARK 290                                                                      
REMARK 290 CRYSTALLOGRAPHIC SYMMETRY                                            
REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1                         
REMARK 290                                                                      
REMARK 290      SYMOP   SYMMETRY                                                
REMARK 290     NNNMMM   OPERATOR                                                
REMARK 290       1555   X,Y,Z                                                   
REMARK 290       2555   -Y,X-Y,Z+1/3                                            
REMARK 290       3555   -X+Y,-X,Z+2/3                                           
REMARK 290       4555   Y,X,-Z                                                  
REMARK 290       5555   X-Y,-Y,-Z+2/3                                           
REMARK 290       6555   -X,-X+Y,-Z+1/3                                          
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 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   2  0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   2  0.000000  0.000000  1.000000       44.09333            
REMARK 290   SMTRY1   3 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   3 -0.866025 -0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   3  0.000000  0.000000  1.000000       88.18667            
REMARK 290   SMTRY1   4 -0.500000  0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   4  0.866025  0.500000  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        0.00000            
REMARK 290   SMTRY2   5  0.000000 -1.000000  0.000000        0.00000            
REMARK 290   SMTRY3   5  0.000000  0.000000 -1.000000       88.18667            
REMARK 290   SMTRY1   6 -0.500000 -0.866025  0.000000        0.00000            
REMARK 290   SMTRY2   6 -0.866025  0.500000  0.000000        0.00000            
REMARK 290   SMTRY3   6  0.000000  0.000000 -1.000000       44.09333            
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: MONOMERIC                         
REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC                  
REMARK 350 SOFTWARE USED: PISA                                                  
REMARK 350 APPLY THE FOLLOWING TO CHAINS: A                                     
REMARK 350   BIOMT1   1  1.000000  0.000000  0.000000        0.00000            
REMARK 350   BIOMT2   1  0.000000  1.000000  0.000000        0.00000            
REMARK 350   BIOMT3   1  0.000000  0.000000  1.000000        0.00000            
REMARK 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   514                                                      
REMARK 465     GLY A   515                                                      
REMARK 465     SER A   516                                                      
REMARK 465     SER A   517                                                      
REMARK 465     HIS A   518                                                      
REMARK 465     HIS A   519                                                      
REMARK 465     HIS A   520                                                      
REMARK 465     HIS A   521                                                      
REMARK 465     HIS A   522                                                      
REMARK 465     HIS A   523                                                      
REMARK 465     SER A   524                                                      
REMARK 465     SER A   525                                                      
REMARK 465     GLY A   526                                                      
REMARK 465     LEU A   527                                                      
REMARK 465     VAL A   528                                                      
REMARK 465     PRO A   529                                                      
REMARK 465     ARG A   530                                                      
REMARK 465     GLY A   531                                                      
REMARK 465     SER A   532                                                      
REMARK 465     HIS A   533                                                      
REMARK 465     MET A   534                                                      
REMARK 465     ILE A   665                                                      
REMARK 465     GLN A   666                                                      
REMARK 465     ARG A   667                                                      
REMARK 465     SER A   668                                                      
REMARK 465     GLU A   669                                                      
REMARK 465     HIS A   670                                                      
REMARK 465     PRO A   671                                                      
REMARK 465     GLN A   789                                                      
REMARK 465     GLY A   790                                                      
REMARK 465     ASP A   791                                                      
REMARK 465     ARG A   792                                                      
REMARK 465     GLU A   793                                                      
REMARK 465     ARG A   794                                                      
REMARK 465     LYS A   795                                                      
REMARK 465     GLU A   796                                                      
REMARK 465     LEU A   797                                                      
REMARK 465     ASN A   798                                                      
REMARK 465     ILE A   799                                                      
REMARK 465     GLU A   800                                                      
REMARK 465     PRO A   801                                                      
REMARK 465     THR A   802                                                      
REMARK 465     ASP A   803                                                      
REMARK 465     LEU A   804                                                      
REMARK 465     MET A   805                                                      
REMARK 465     ASN A   806                                                      
REMARK 465     ARG A   807                                                      
REMARK 465     GLU A   808                                                      
REMARK 465     LYS A   809                                                      
REMARK 465     GLN A   859                                                      
REMARK 465     GLN A   860                                                      
REMARK 470                                                                      
REMARK 470 MISSING ATOM                                                         
REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER;           
REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER;          
REMARK 470 I=INSERTION CODE):                                                   
REMARK 470   M RES CSSEQI  ATOMS                                                
REMARK 470     GLU A 535    CG   CD   OE1  OE2                                  
REMARK 470     GLU A 536    CG   CD   OE1  OE2                                  
REMARK 470     ARG A 538    CG   CD   NE   CZ   NH1  NH2                        
REMARK 470     TYR A 664    CG   CD1  CD2  CE1  CE2  CZ   OH                    
REMARK 470     LEU A 672    CG   CD1  CD2                                       
REMARK 470     LYS A 810    CG   CD   CE   NZ                                   
REMARK 470     LYS A 812    CG   CD   CE   NZ                                   
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    LYS A 630      -78.66    -83.97                                   
REMARK 500    GLN A 674     -164.28     63.61                                   
REMARK 500    LEU A 675       43.33     90.66                                   
REMARK 500    TYR A 676     -132.97     55.09                                   
REMARK 500    CYS A 677     -128.35   -114.79                                   
REMARK 500    ALA A 857       -7.79    -53.06                                   
REMARK 500                                                                      
REMARK 500 REMARK: NULL                                                         
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 902  ZN                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 HIS A 617   NE2                                                    
REMARK 620 2 HIS A 653   NE2  98.2                                              
REMARK 620 3 ASP A 654   OD1  92.9  86.4                                        
REMARK 620 4 ASP A 764   OD2  87.2  84.4 170.7                                  
REMARK 620 5 HOH A1004   O    85.8 170.1 102.6  86.8                            
REMARK 620 6 HOH A1138   O   166.6  95.2  89.3  92.7  80.8                      
REMARK 620 N                    1     2     3     4     5                       
REMARK 620                                                                      
REMARK 620 COORDINATION ANGLES FOR:  M RES CSSEQI METAL                         
REMARK 620                              MG A 903  MG                            
REMARK 620 N RES CSSEQI ATOM                                                    
REMARK 620 1 ASP A 654   OD2                                                    
REMARK 620 2 HOH A1001   O   166.4                                              
REMARK 620 3 HOH A1002   O    85.0  81.7                                        
REMARK 620 4 HOH A1015   O    94.7  88.7  90.6                                  
REMARK 620 5 HOH A1137   O   100.8  92.2 172.4  93.7                            
REMARK 620 6 HOH A1138   O    96.5  80.5  91.0 168.8  83.6                      
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 5BA A 901                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC2                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 902                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC3                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 903                  
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC4                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 904                 
REMARK 800                                                                      
REMARK 800 SITE_IDENTIFIER: AC5                                                 
REMARK 800 EVIDENCE_CODE: SOFTWARE                                              
REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PEG A 905                 
REMARK 900                                                                      
REMARK 900 RELATED ENTRIES                                                      
REMARK 900 RELATED ID: 4IA0   RELATED DB: PDB                                   
DBREF  4I9Z A  535   860  UNP    O76074   PDE5A_HUMAN    535    860             
SEQADV 4I9Z MET A  514  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z GLY A  515  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z SER A  516  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z SER A  517  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  518  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  519  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  520  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  521  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  522  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  523  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z SER A  524  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z SER A  525  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z GLY A  526  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z LEU A  527  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z VAL A  528  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z PRO A  529  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z ARG A  530  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z GLY A  531  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z SER A  532  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z HIS A  533  UNP  O76074              EXPRESSION TAG                 
SEQADV 4I9Z MET A  534  UNP  O76074              EXPRESSION TAG                 
SEQRES   1 A  347  MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY          
SEQRES   2 A  347  LEU VAL PRO ARG GLY SER HIS MET GLU GLU THR ARG GLU          
SEQRES   3 A  347  LEU GLN SER LEU ALA ALA ALA VAL VAL PRO SER ALA GLN          
SEQRES   4 A  347  THR LEU LYS ILE THR ASP PHE SER PHE SER ASP PHE GLU          
SEQRES   5 A  347  LEU SER ASP LEU GLU THR ALA LEU CYS THR ILE ARG MET          
SEQRES   6 A  347  PHE THR ASP LEU ASN LEU VAL GLN ASN PHE GLN MET LYS          
SEQRES   7 A  347  HIS GLU VAL LEU CYS ARG TRP ILE LEU SER VAL LYS LYS          
SEQRES   8 A  347  ASN TYR ARG LYS ASN VAL ALA TYR HIS ASN TRP ARG HIS          
SEQRES   9 A  347  ALA PHE ASN THR ALA GLN CYS MET PHE ALA ALA LEU LYS          
SEQRES  10 A  347  ALA GLY LYS ILE GLN ASN LYS LEU THR ASP LEU GLU ILE          
SEQRES  11 A  347  LEU ALA LEU LEU ILE ALA ALA LEU SER HIS ASP LEU ASP          
SEQRES  12 A  347  HIS ARG GLY VAL ASN ASN SER TYR ILE GLN ARG SER GLU          
SEQRES  13 A  347  HIS PRO LEU ALA GLN LEU TYR CYS HIS SER ILE MET GLU          
SEQRES  14 A  347  HIS HIS HIS PHE ASP GLN CYS LEU MET ILE LEU ASN SER          
SEQRES  15 A  347  PRO GLY ASN GLN ILE LEU SER GLY LEU SER ILE GLU GLU          
SEQRES  16 A  347  TYR LYS THR THR LEU LYS ILE ILE LYS GLN ALA ILE LEU          
SEQRES  17 A  347  ALA THR ASP LEU ALA LEU TYR ILE LYS ARG ARG GLY GLU          
SEQRES  18 A  347  PHE PHE GLU LEU ILE ARG LYS ASN GLN PHE ASN LEU GLU          
SEQRES  19 A  347  ASP PRO HIS GLN LYS GLU LEU PHE LEU ALA MET LEU MET          
SEQRES  20 A  347  THR ALA CYS ASP LEU SER ALA ILE THR LYS PRO TRP PRO          
SEQRES  21 A  347  ILE GLN GLN ARG ILE ALA GLU LEU VAL ALA THR GLU PHE          
SEQRES  22 A  347  PHE ASP GLN GLY ASP ARG GLU ARG LYS GLU LEU ASN ILE          
SEQRES  23 A  347  GLU PRO THR ASP LEU MET ASN ARG GLU LYS LYS ASN LYS          
SEQRES  24 A  347  ILE PRO SER MET GLN VAL GLY PHE ILE ASP ALA ILE CYS          
SEQRES  25 A  347  LEU GLN LEU TYR GLU ALA LEU THR HIS VAL SER GLU ASP          
SEQRES  26 A  347  CYS PHE PRO LEU LEU ASP GLY CYS ARG LYS ASN ARG GLN          
SEQRES  27 A  347  LYS TRP GLN ALA LEU ALA GLU GLN GLN                          
HET    5BA  A 901      31                                                       
HET     ZN  A 902       1                                                       
HET     MG  A 903       1                                                       
HET    PEG  A 904       7                                                       
HET    PEG  A 905       7                                                       
HETNAM     5BA 5-BROMO-2-{5-[(4-METHYLPIPERAZIN-1-YL)ACETYL]-2-                 
HETNAM   2 5BA  PROPOXYPHENYL}-6-(PROPAN-2-YL)PYRIMIDIN-4(3H)-ONE               
HETNAM      ZN ZINC ION                                                         
HETNAM      MG MAGNESIUM ION                                                    
HETNAM     PEG DI(HYDROXYETHYL)ETHER                                            
FORMUL   2  5BA    C23 H31 BR N4 O3                                             
FORMUL   3   ZN    ZN 2+                                                        
FORMUL   4   MG    MG 2+                                                        
FORMUL   5  PEG    2(C4 H10 O3)                                                 
FORMUL   7  HOH   *159(H2 O)                                                    
HELIX    1   1 GLU A  535  ALA A  546  1                                  12    
HELIX    2   2 SER A  550  LYS A  555  1                                   6    
HELIX    3   3 SER A  567  LEU A  582  1                                  16    
HELIX    4   4 ASN A  583  PHE A  588  1                                   6    
HELIX    5   5 LYS A  591  ASN A  605  1                                  15    
HELIX    6   6 ASN A  614  ALA A  631  1                                  18    
HELIX    7   7 ILE A  634  LEU A  638  5                                   5    
HELIX    8   8 THR A  639  HIS A  653  1                                  15    
HELIX    9   9 SER A  679  ASN A  694  1                                  16    
HELIX   10  10 SER A  705  ALA A  722  1                                  18    
HELIX   11  11 ASP A  724  LYS A  741  1                                  18    
HELIX   12  12 ASP A  748  LEU A  765  1                                  18    
HELIX   13  13 SER A  766  LYS A  770  5                                   5    
HELIX   14  14 PRO A  771  PHE A  787  1                                  17    
HELIX   15  15 LYS A  812  ILE A  824  1                                  13    
HELIX   16  16 CYS A  825  SER A  836  1                                  12    
HELIX   17  17 CYS A  839  ALA A  857  1                                  19    
LINK         NE2 HIS A 617                ZN    ZN A 902     1555   1555  2.19  
LINK         NE2 HIS A 653                ZN    ZN A 902     1555   1555  2.23  
LINK         OD1 ASP A 654                ZN    ZN A 902     1555   1555  2.09  
LINK         OD2 ASP A 654                MG    MG A 903     1555   1555  2.09  
LINK         OD2 ASP A 764                ZN    ZN A 902     1555   1555  2.27  
LINK        ZN    ZN A 902                 O   HOH A1004     1555   1555  2.23  
LINK        ZN    ZN A 902                 O   HOH A1138     1555   1555  2.43  
LINK        MG    MG A 903                 O   HOH A1001     1555   1555  2.12  
LINK        MG    MG A 903                 O   HOH A1002     1555   1555  2.08  
LINK        MG    MG A 903                 O   HOH A1015     1555   1555  2.10  
LINK        MG    MG A 903                 O   HOH A1137     1555   1555  2.01  
LINK        MG    MG A 903                 O   HOH A1138     1555   1555  2.12  
SITE     1 AC1 12 VAL A 548  TYR A 612  LEU A 675  ALA A 779                    
SITE     2 AC1 12 VAL A 782  PHE A 786  MET A 816  GLN A 817                    
SITE     3 AC1 12 PHE A 820  ALA A 823  PEG A 904  HOH A1037                    
SITE     1 AC2  6 HIS A 617  HIS A 653  ASP A 654  ASP A 764                    
SITE     2 AC2  6 HOH A1004  HOH A1138                                          
SITE     1 AC3  6 ASP A 654  HOH A1001  HOH A1002  HOH A1015                    
SITE     2 AC3  6 HOH A1137  HOH A1138                                          
SITE     1 AC4  7 ARG A 577  GLY A 819  ASP A 822  ALA A 823                    
SITE     2 AC4  7 5BA A 901  HOH A1025  HOH A1049                               
SITE     1 AC5  9 SER A 562  PHE A 564  GLU A 565  LEU A 690                    
SITE     2 AC5  9 ASN A 694  TYR A 709  PRO A 773  ARG A 777                    
SITE     3 AC5  9 HOH A1052                                                     
CRYST1   74.850   74.850  132.280  90.00  90.00 120.00 P 31 2 1      6          
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      0.013360  0.007713  0.000000        0.00000                         
SCALE2      0.000000  0.015427  0.000000        0.00000                         
SCALE3      0.000000  0.000000  0.007560        0.00000                         
(ATOM LINES ARE NOT SHOWN.)
END                                                                             
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