HEADER HYDROLASE 05-MAY-09 3HC8 TITLE INVESTIGATION OF AMINOPYRIDIOPYRAZINONES AS PDE5 INHIBITORS: TITLE 2 EVALUATION OF MODIFICATIONS TO THE CENTRAL RING SYSTEM. COMPND MOL_ID: 1; COMPND 2 MOLECULE: CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE,CAMP-SPECIFIC COMPND 3 3',5'-CYCLIC PHOSPHODIESTERASE 4A; COMPND 4 CHAIN: A; COMPND 5 FRAGMENT: PDE4A RESIDUES 456-480, PDE5A RESIDUES 536-657 682-858; COMPND 6 SYNONYM: CGMP-BINDING CGMP-SPECIFIC PHOSPHODIESTERASE,CGB-PDE,DPDE2, COMPND 7 PDE46,CGMP-BINDING CGMP-SPECIFIC PHOSPHODIESTERASE,CGB-PDE; COMPND 8 EC: 3.1.4.35,3.1.4.53,3.1.4.35; COMPND 9 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: PDE5A, PDE5, PDE4A, DPDE2; SOURCE 6 EXPRESSION_SYSTEM: SPODOPTERA FRUGIPERDA; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 7108; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: HIGH5; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: BACULOVIRUS; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: FASTBAC; SOURCE 11 OTHER_DETAILS: RESIDUES 658-682 FROM PDE4 KEYWDS PDE5, PDE-5, INHIBITION, ALTERNATIVE SPLICING, CAMP, HYDROLASE, KEYWDS 2 PHOSPHOPROTEIN, POLYMORPHISM ALLOSTERIC ENZYME, CGMP, CGMP-BINDING, KEYWDS 3 MAGNESIUM, METAL-BINDING, NUCLEOTIDE-BINDING, ZINC EXPDTA X-RAY DIFFRACTION AUTHOR R.O.HUGHES,W.C.STALLINGS,J.W.CUBBAGE,J.M.WILLIAMS REVDAT 6 22-MAY-24 3HC8 1 REMARK REVDAT 5 26-JUL-23 3HC8 1 JRNL REMARK LINK REVDAT 4 24-JAN-18 3HC8 1 AUTHOR REVDAT 3 01-NOV-17 3HC8 1 REMARK REVDAT 2 21-JUN-17 3HC8 1 DBREF REVDAT 1 07-JUL-09 3HC8 0 JRNL AUTH R.O.HUGHES,J.K.WALKER,J.W.CUBBAGE,Y.M.FOBIAN,D.J.ROGIER, JRNL AUTH 2 S.E.HEASLEY,R.M.BLEVIS-BAL,A.G.BENSON,D.R.OWEN,E.J.JACOBSEN, JRNL AUTH 3 J.N.FRESKOS,J.M.MOLYNEAUX,D.L.BROWN,W.C.STALLINGS,B.A.ACKER, JRNL AUTH 4 T.M.MADDUX,M.B.TOLLEFSON,J.M.WILLIAMS,J.B.MOON,B.V.MISCHKE, JRNL AUTH 5 J.M.RUMSEY,Y.ZHENG,A.MACINNES,B.R.BOND,Y.YU JRNL TITL INVESTIGATION OF AMINOPYRIDIOPYRAZINONES AS PDE5 INHIBITORS: JRNL TITL 2 EVALUATION OF MODIFICATIONS TO THE CENTRAL RING SYSTEM. JRNL REF BIOORG.MED.CHEM.LETT. V. 19 4092 2009 JRNL REFN ESSN 1464-3405 JRNL PMID 19539468 JRNL DOI 10.1016/J.BMCL.2009.06.004 REMARK 2 REMARK 2 RESOLUTION. 1.79 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 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) : 1.79 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.27 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 88.3 REMARK 3 NUMBER OF REFLECTIONS : 26091 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) : 0.198 REMARK 3 R VALUE (WORKING SET) : 0.196 REMARK 3 FREE R VALUE : 0.230 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1320 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) : 1.79 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.84 REMARK 3 REFLECTION IN BIN (WORKING SET) : 1705 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 82.18 REMARK 3 BIN R VALUE (WORKING SET) : 0.2870 REMARK 3 BIN FREE R VALUE SET COUNT : 70 REMARK 3 BIN FREE R VALUE : 0.3490 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2620 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 37 REMARK 3 SOLVENT ATOMS : 174 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 33.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 39.81 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.72000 REMARK 3 B22 (A**2) : -0.27000 REMARK 3 B33 (A**2) : 1.95000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 2.34000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.172 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.148 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.111 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 3.662 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.962 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.953 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2715 ; 0.009 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): 1820 ; 0.001 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3669 ; 1.088 ; 1.973 REMARK 3 BOND ANGLES OTHERS (DEGREES): 4456 ; 0.866 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 325 ; 4.989 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 132 ;37.241 ;24.924 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 502 ;13.862 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 15 ;13.863 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 412 ; 0.057 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 2965 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 524 ; 0.001 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 673 ; 0.221 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 1861 ; 0.185 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1362 ; 0.184 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): 1269 ; 0.085 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 108 ; 0.128 ; 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): 16 ; 0.212 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 45 ; 0.214 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 6 ; 0.132 ; 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): 1721 ; 0.671 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): 647 ; 0.126 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2633 ; 1.023 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 1172 ; 1.636 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 1035 ; 2.641 ; 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 : NULL 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 3HC8 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-MAY-09. REMARK 100 THE DEPOSITION ID IS D_1000052956. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 09-JUN-04 REMARK 200 TEMPERATURE (KELVIN) : 113 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU MICROMAX-007 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 26091 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.790 REMARK 200 RESOLUTION RANGE LOW (A) : 19.270 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 88.9 REMARK 200 DATA REDUNDANCY : 2.300 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03800 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 24.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.79 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 89.7 REMARK 200 DATA REDUNDANCY IN SHELL : 2.30 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.41000 REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.600 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: PHASER REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 42.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.14 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 27.34550 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 38.54250 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 27.34550 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 38.54250 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1 REMARK 300 SEE REMARK 350 FOR THE AUTHOR PROVIDED AND/OR PROGRAM REMARK 300 GENERATED ASSEMBLY INFORMATION FOR THE STRUCTURE IN REMARK 300 THIS ENTRY. THE REMARK MAY ALSO PROVIDE INFORMATION ON REMARK 300 BURIED SURFACE AREA. REMARK 350 REMARK 350 COORDINATES FOR A COMPLETE MULTIMER REPRESENTING THE KNOWN REMARK 350 BIOLOGICALLY SIGNIFICANT OLIGOMERIZATION STATE OF THE REMARK 350 MOLECULE CAN BE GENERATED BY APPLYING BIOMT TRANSFORMATIONS REMARK 350 GIVEN BELOW. BOTH NON-CRYSTALLOGRAPHIC AND REMARK 350 CRYSTALLOGRAPHIC OPERATIONS ARE GIVEN. REMARK 350 REMARK 350 BIOMOLECULE: 1 REMARK 350 AUTHOR DETERMINED BIOLOGICAL UNIT: 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 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 -80.21 -80.85 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A 426 DISTANCE = 6.05 ANGSTROMS REMARK 525 HOH A 525 DISTANCE = 8.82 ANGSTROMS REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 ZN A 864 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 13 O REMARK 620 2 HIS A 617 NE2 136.2 REMARK 620 3 HIS A 653 NE2 112.1 111.0 REMARK 620 4 ASP A 654 OD2 85.3 102.1 90.4 REMARK 620 5 ASP A 764 OD1 99.3 72.4 90.8 174.4 REMARK 620 N 1 2 3 4 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 865 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 13 O REMARK 620 2 HOH A 88 O 104.9 REMARK 620 3 HOH A 463 O 106.4 84.2 REMARK 620 4 HOH A 465 O 168.6 79.4 84.5 REMARK 620 5 ASP A 654 OD1 85.5 163.1 80.1 93.0 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PD4 A 901 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ZN A 864 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 865 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2H40 RELATED DB: PDB REMARK 900 RELATED ID: 2H42 RELATED DB: PDB REMARK 900 RELATED ID: 2H44 RELATED DB: PDB REMARK 900 RELATED ID: 3BJC RELATED DB: PDB REMARK 900 RELATED ID: 1UHO RELATED DB: PDB REMARK 900 RELATED ID: 2CHM RELATED DB: PDB REMARK 900 RELATED ID: 3HDZ RELATED DB: PDB DBREF 3HC8 A 536 657 UNP O76074 PDE5A_HUMAN 536 657 DBREF 3HC8 A 658 681A UNP P27815 PDE4A_HUMAN 456 480 DBREF 3HC8 A 682 858 UNP O76074 PDE5A_HUMAN 682 858 SEQADV 3HC8 GLU A 751 UNP O76074 GLN 751 CONFLICT SEQRES 1 A 324 GLU THR ARG GLU LEU GLN SER LEU ALA ALA ALA VAL VAL SEQRES 2 A 324 PRO SER ALA GLN THR LEU LYS ILE THR ASP PHE SER PHE SEQRES 3 A 324 SER ASP PHE GLU LEU SER ASP LEU GLU THR ALA LEU CYS SEQRES 4 A 324 THR ILE ARG MET PHE THR ASP LEU ASN LEU VAL GLN ASN SEQRES 5 A 324 PHE GLN MET LYS HIS GLU VAL LEU CYS ARG TRP ILE LEU SEQRES 6 A 324 SER VAL LYS LYS ASN TYR ARG LYS ASN VAL ALA TYR HIS SEQRES 7 A 324 ASN TRP ARG HIS ALA PHE ASN THR ALA GLN CYS MET PHE SEQRES 8 A 324 ALA ALA LEU LYS ALA GLY LYS ILE GLN ASN LYS LEU THR SEQRES 9 A 324 ASP LEU GLU ILE LEU ALA LEU LEU ILE ALA ALA LEU SER SEQRES 10 A 324 HIS ASP LEU ASP HIS PRO GLY VAL SER ASN GLN PHE LEU SEQRES 11 A 324 ILE ASN THR ASN SER GLU LEU ALA LEU MET TYR ASN ASP SEQRES 12 A 324 GLU SER VAL LEU GLU HIS HIS HIS PHE ASP GLN CYS LEU SEQRES 13 A 324 MET ILE LEU ASN SER PRO GLY ASN GLN ILE LEU SER GLY SEQRES 14 A 324 LEU SER ILE GLU GLU TYR LYS THR THR LEU LYS ILE ILE SEQRES 15 A 324 LYS GLN ALA ILE LEU ALA THR ASP LEU ALA LEU TYR ILE SEQRES 16 A 324 LYS ARG ARG GLY GLU PHE PHE GLU LEU ILE ARG LYS ASN SEQRES 17 A 324 GLN PHE ASN LEU GLU ASP PRO HIS GLU LYS GLU LEU PHE SEQRES 18 A 324 LEU ALA MET LEU MET THR ALA CYS ASP LEU SER ALA ILE SEQRES 19 A 324 THR LYS PRO TRP PRO ILE GLN GLN ARG ILE ALA GLU LEU SEQRES 20 A 324 VAL ALA THR GLU PHE PHE ASP GLN GLY ASP ARG GLU ARG SEQRES 21 A 324 LYS GLU LEU ASN ILE GLU PRO THR ASP LEU MET ASN ARG SEQRES 22 A 324 GLU LYS LYS ASN LYS ILE PRO SER MET GLN VAL GLY PHE SEQRES 23 A 324 ILE ASP ALA ILE CYS LEU GLN LEU TYR GLU ALA LEU THR SEQRES 24 A 324 HIS VAL SER GLU ASP CYS PHE PRO LEU LEU ASP GLY CYS SEQRES 25 A 324 ARG LYS ASN ARG GLN LYS TRP GLN ALA LEU ALA GLU HET PD4 A 901 34 HET ZN A 864 1 HET MG A 865 1 HET MG A 1 1 HETNAM PD4 6-(6-METHOXYPYRIDIN-3-YL)-2-[(2-MORPHOLIN-4-YLETHYL) HETNAM 2 PD4 AMINO]-4-(2-PROPOXYETHYL)PYRIDO[2,3-B]PYRAZIN-3(4H)- HETNAM 3 PD4 ONE HETNAM ZN ZINC ION HETNAM MG MAGNESIUM ION FORMUL 2 PD4 C24 H32 N6 O4 FORMUL 3 ZN ZN 2+ FORMUL 4 MG 2(MG 2+) FORMUL 6 HOH *174(H2 O) HELIX 1 1 GLU A 536 ALA A 546 1 11 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 LYS A 630 1 17 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 661 THR A 668 1 8 HELIX 10 10 SER A 670 TYR A 676 1 7 HELIX 11 11 SER A 680 ASN A 694 1 16 HELIX 12 12 SER A 705 ALA A 722 1 18 HELIX 13 13 ASP A 724 LYS A 741 1 18 HELIX 14 14 ASP A 748 LEU A 765 1 18 HELIX 15 15 SER A 766 LYS A 770 5 5 HELIX 16 16 PRO A 771 ASN A 798 1 28 HELIX 17 17 THR A 802 ASN A 811 5 10 HELIX 18 18 LYS A 812 ILE A 824 1 13 HELIX 19 19 ILE A 824 SER A 836 1 13 HELIX 20 20 CYS A 839 GLU A 858 1 20 LINK O HOH A 13 ZN ZN A 864 1555 1555 2.21 LINK O HOH A 13 MG MG A 865 1555 1555 2.19 LINK O HOH A 88 MG MG A 865 1555 1555 2.37 LINK O HOH A 463 MG MG A 865 1555 1555 2.16 LINK O HOH A 465 MG MG A 865 1555 1555 2.20 LINK NE2 HIS A 617 ZN ZN A 864 1555 1555 2.22 LINK NE2 HIS A 653 ZN ZN A 864 1555 1555 2.09 LINK OD2 ASP A 654 ZN ZN A 864 1555 1555 2.21 LINK OD1 ASP A 654 MG MG A 865 1555 1555 2.19 LINK OD1 ASP A 764 ZN ZN A 864 1555 1555 2.15 SITE 1 AC1 13 HOH A 78 HOH A 405 ALA A 545 TYR A 612 SITE 2 AC1 13 ILE A 729 ALA A 767 ILE A 768 GLN A 775 SITE 3 AC1 13 VAL A 782 LEU A 804 GLN A 817 PHE A 820 SITE 4 AC1 13 HOH A 878 SITE 1 AC2 5 HOH A 13 HIS A 617 HIS A 653 ASP A 654 SITE 2 AC2 5 ASP A 764 SITE 1 AC3 5 HOH A 13 HOH A 88 HOH A 463 HOH A 465 SITE 2 AC3 5 ASP A 654 SITE 1 AC4 4 PHE A 588 SER A 705 GLU A 707 GLU A 708 CRYST1 54.691 77.085 77.514 90.00 101.93 90.00 C 1 2 1 4 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 0.018285 0.000000 0.003862 0.00000 SCALE2 0.000000 0.012973 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013186 0.00000