HEADER HYDROLASE 06-OCT-04 1XOT TITLE CATALYTIC DOMAIN OF HUMAN PHOSPHODIESTERASE 4B IN COMPLEX WITH TITLE 2 VARDENAFIL COMPND MOL_ID: 1; COMPND 2 MOLECULE: CAMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE 4B; COMPND 3 CHAIN: B, A; COMPND 4 FRAGMENT: CATALYTIC DOMAIN OF HUMAN PHOSPHODIESTERASE 4B; COMPND 5 SYNONYM: DPDE4, PDE32; 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: PDE4B; 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, PDE4B, VARDENAFIL, LEVITRA, 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 13-NOV-24 1XOT 1 REMARK SEQADV LINK REVDAT 3 13-JUL-11 1XOT 1 VERSN REVDAT 2 24-FEB-09 1XOT 1 VERSN REVDAT 1 14-DEC-04 1XOT 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. 2.34 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) : 2.34 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 70.71 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 3 NUMBER OF REFLECTIONS : 37567 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) : 0.213 REMARK 3 R VALUE (WORKING SET) : 0.210 REMARK 3 FREE R VALUE : 0.259 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 2002 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) : 2.34 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.40 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2742 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.3210 REMARK 3 BIN FREE R VALUE SET COUNT : 149 REMARK 3 BIN FREE R VALUE : 0.3800 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 5234 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 72 REMARK 3 SOLVENT ATOMS : 46 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) : 25.73 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -5.42000 REMARK 3 B22 (A**2) : 1.01000 REMARK 3 B33 (A**2) : 4.41000 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): 0.288 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.233 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.201 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 9.063 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.958 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.937 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 5410 ; 0.018 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): 4808 ; 0.002 ; 0.020 REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 7344 ; 1.703 ; 1.954 REMARK 3 BOND ANGLES OTHERS (DEGREES): 11196 ; 0.980 ; 3.000 REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 644 ; 3.292 ; 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): 828 ; 0.118 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 5946 ; 0.009 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): 1054 ; 0.007 ; 0.020 REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1279 ; 0.217 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): 5479 ; 0.220 ; 0.200 REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): 3126 ; 0.096 ; 0.200 REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 94 ; 0.147 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 4 ; 0.145 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 5 ; 0.139 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): 28 ; 0.327 ; 0.200 REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 2 ; 0.135 ; 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): 3228 ; 0.597 ; 1.500 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 5234 ; 1.142 ; 2.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 2182 ; 2.008 ; 3.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 2110 ; 3.121 ; 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 : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : B 163 B 193 REMARK 3 RESIDUE RANGE : B 195 B 485 REMARK 3 ORIGIN FOR THE GROUP (A): 42.5819 2.6407 52.9873 REMARK 3 T TENSOR REMARK 3 T11: 0.2516 T22: 0.1239 REMARK 3 T33: 0.1860 T12: 0.0265 REMARK 3 T13: 0.0533 T23: 0.1510 REMARK 3 L TENSOR REMARK 3 L11: 5.6476 L22: 1.6120 REMARK 3 L33: 3.6253 L12: -0.6660 REMARK 3 L13: -0.8991 L23: 0.0170 REMARK 3 S TENSOR REMARK 3 S11: -0.0780 S12: 0.0031 S13: -0.1635 REMARK 3 S21: -0.0876 S22: -0.1692 S23: -0.1144 REMARK 3 S31: 0.1376 S32: 0.3843 S33: 0.2472 REMARK 3 REMARK 3 TLS GROUP : 2 REMARK 3 NUMBER OF COMPONENTS GROUP : 2 REMARK 3 COMPONENTS C SSSEQI TO C SSSEQI REMARK 3 RESIDUE RANGE : A 163 A 193 REMARK 3 RESIDUE RANGE : A 195 A 485 REMARK 3 ORIGIN FOR THE GROUP (A): 2.3566 2.1201 53.1913 REMARK 3 T TENSOR REMARK 3 T11: 0.3063 T22: 0.1332 REMARK 3 T33: 0.0952 T12: -0.0104 REMARK 3 T13: 0.0743 T23: -0.0016 REMARK 3 L TENSOR REMARK 3 L11: 5.1042 L22: 1.4134 REMARK 3 L33: 3.1546 L12: 0.4028 REMARK 3 L13: -0.1675 L23: 0.0822 REMARK 3 S TENSOR REMARK 3 S11: -0.0661 S12: 0.1883 S13: -0.5234 REMARK 3 S21: -0.0015 S22: -0.0470 S23: 0.0510 REMARK 3 S31: 0.1704 S32: -0.2728 S33: 0.1131 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 1XOT COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 18-NOV-04. REMARK 100 THE DEPOSITION ID IS D_1000030591. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-AUG-03 REMARK 200 TEMPERATURE (KELVIN) : 93 REMARK 200 PH : 10.0 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 : 37567 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.340 REMARK 200 RESOLUTION RANGE LOW (A) : 70.710 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 4.000 REMARK 200 R MERGE (I) : 0.07400 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 7.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.34 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 4.10 REMARK 200 R MERGE FOR SHELL (I) : 0.91900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 1.300 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 (%): 51.22 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.52 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE AND LITHIUM SULFATE , REMARK 280 PH 10.0, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 277.0K 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 44.92050 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 54.37750 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 47.21150 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 54.37750 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 44.92050 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 47.21150 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 B 131 REMARK 465 GLY B 132 REMARK 465 SER B 133 REMARK 465 SER B 134 REMARK 465 HIS B 135 REMARK 465 HIS B 136 REMARK 465 HIS B 137 REMARK 465 HIS B 138 REMARK 465 HIS B 139 REMARK 465 HIS B 140 REMARK 465 SER B 141 REMARK 465 SER B 142 REMARK 465 GLY B 143 REMARK 465 LEU B 144 REMARK 465 VAL B 145 REMARK 465 PRO B 146 REMARK 465 ARG B 147 REMARK 465 GLY B 148 REMARK 465 SER B 149 REMARK 465 HIS B 150 REMARK 465 MET B 151 REMARK 465 SER B 152 REMARK 465 ILE B 153 REMARK 465 SER B 154 REMARK 465 ARG B 155 REMARK 465 PHE B 156 REMARK 465 GLY B 157 REMARK 465 VAL B 158 REMARK 465 ASN B 159 REMARK 465 THR B 160 REMARK 465 GLU B 161 REMARK 465 ASN B 162 REMARK 465 GLN B 486 REMARK 465 SER B 487 REMARK 465 PRO B 488 REMARK 465 SER B 489 REMARK 465 PRO B 490 REMARK 465 PRO B 491 REMARK 465 LEU B 492 REMARK 465 ASP B 493 REMARK 465 GLU B 494 REMARK 465 GLN B 495 REMARK 465 ASN B 496 REMARK 465 ARG B 497 REMARK 465 ASP B 498 REMARK 465 CYS B 499 REMARK 465 GLN B 500 REMARK 465 GLY B 501 REMARK 465 LEU B 502 REMARK 465 MET B 503 REMARK 465 GLU B 504 REMARK 465 LYS B 505 REMARK 465 PHE B 506 REMARK 465 GLN B 507 REMARK 465 PHE B 508 REMARK 465 GLU B 509 REMARK 465 LEU B 510 REMARK 465 THR B 511 REMARK 465 LEU B 512 REMARK 465 ASP B 513 REMARK 465 GLU B 514 REMARK 465 GLU B 515 REMARK 465 ASP B 516 REMARK 465 SER B 517 REMARK 465 GLU B 518 REMARK 465 GLY B 519 REMARK 465 PRO B 520 REMARK 465 GLU B 521 REMARK 465 LYS B 522 REMARK 465 GLU B 523 REMARK 465 GLY B 524 REMARK 465 GLU B 525 REMARK 465 GLY B 526 REMARK 465 HIS B 527 REMARK 465 SER B 528 REMARK 465 MET A 131 REMARK 465 GLY A 132 REMARK 465 SER A 133 REMARK 465 SER A 134 REMARK 465 HIS A 135 REMARK 465 HIS A 136 REMARK 465 HIS A 137 REMARK 465 HIS A 138 REMARK 465 HIS A 139 REMARK 465 HIS A 140 REMARK 465 SER A 141 REMARK 465 SER A 142 REMARK 465 GLY A 143 REMARK 465 LEU A 144 REMARK 465 VAL A 145 REMARK 465 PRO A 146 REMARK 465 ARG A 147 REMARK 465 GLY A 148 REMARK 465 SER A 149 REMARK 465 HIS A 150 REMARK 465 MET A 151 REMARK 465 SER A 152 REMARK 465 ILE A 153 REMARK 465 SER A 154 REMARK 465 ARG A 155 REMARK 465 PHE A 156 REMARK 465 GLY A 157 REMARK 465 VAL A 158 REMARK 465 ASN A 159 REMARK 465 THR A 160 REMARK 465 GLU A 161 REMARK 465 ASN A 162 REMARK 465 GLN A 486 REMARK 465 SER A 487 REMARK 465 PRO A 488 REMARK 465 SER A 489 REMARK 465 PRO A 490 REMARK 465 PRO A 491 REMARK 465 LEU A 492 REMARK 465 ASP A 493 REMARK 465 GLU A 494 REMARK 465 GLN A 495 REMARK 465 ASN A 496 REMARK 465 ARG A 497 REMARK 465 ASP A 498 REMARK 465 CYS A 499 REMARK 465 GLN A 500 REMARK 465 GLY A 501 REMARK 465 LEU A 502 REMARK 465 MET A 503 REMARK 465 GLU A 504 REMARK 465 LYS A 505 REMARK 465 PHE A 506 REMARK 465 GLN A 507 REMARK 465 PHE A 508 REMARK 465 GLU A 509 REMARK 465 LEU A 510 REMARK 465 THR A 511 REMARK 465 LEU A 512 REMARK 465 ASP A 513 REMARK 465 GLU A 514 REMARK 465 GLU A 515 REMARK 465 ASP A 516 REMARK 465 SER A 517 REMARK 465 GLU A 518 REMARK 465 GLY A 519 REMARK 465 PRO A 520 REMARK 465 GLU A 521 REMARK 465 LYS A 522 REMARK 465 GLU A 523 REMARK 465 GLY A 524 REMARK 465 GLU A 525 REMARK 465 GLY A 526 REMARK 465 HIS A 527 REMARK 465 SER A 528 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 GLU B 318 CG CD OE1 OE2 REMARK 480 GLU A 318 CG CD OE1 OE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 GLU B 318 CB GLU B 318 CG 0.303 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 B 214 CB - CG - OD2 ANGL. DEV. = 6.7 DEGREES REMARK 500 ASP B 299 CB - CG - OD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 GLU B 318 CA - CB - CG ANGL. DEV. = -19.9 DEGREES REMARK 500 ASP B 340 CB - CG - OD2 ANGL. DEV. = 5.8 DEGREES REMARK 500 ASP B 356 CB - CG - OD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 ASP B 392 CB - CG - OD2 ANGL. DEV. = 7.5 DEGREES REMARK 500 ASP B 468 CB - CG - OD2 ANGL. DEV. = 5.5 DEGREES REMARK 500 ASP A 230 CB - CG - OD2 ANGL. DEV. = 7.7 DEGREES REMARK 500 ASP A 340 CB - CG - OD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 ASP A 375 CB - CG - OD2 ANGL. DEV. = 5.5 DEGREES REMARK 500 ASP A 392 CB - CG - OD2 ANGL. DEV. = 7.0 DEGREES REMARK 500 ASP A 468 CB - CG - OD2 ANGL. DEV. = 6.5 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 SER B 187 33.49 -143.80 REMARK 500 CME B 194 -70.86 -27.03 REMARK 500 HIS B 234 45.56 -84.09 REMARK 500 GLU B 318 -62.19 -26.14 REMARK 500 HIS B 319 20.75 -77.79 REMARK 500 ASP B 375 -86.51 -54.08 REMARK 500 LEU B 393 41.80 -108.70 REMARK 500 CME A 194 -74.32 -25.41 REMARK 500 PRO A 430 -13.72 -36.71 REMARK 500 THR A 436 -43.84 -131.91 REMARK 500 ILE A 450 -51.03 -136.29 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 HOH 1003-1008 ARE ASSOCIATED WITH CHAIN A. REMARK 600 HOH 2003-2008 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 B1001 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS B 238 NE2 REMARK 620 2 HIS B 274 NE2 107.7 REMARK 620 3 ASP B 275 OD2 89.4 87.7 REMARK 620 4 ASP B 392 OD2 88.5 92.0 177.7 REMARK 620 5 HOH B2007 O 151.0 97.4 77.2 105.1 REMARK 620 6 HOH B2008 O 74.2 174.3 86.9 93.5 79.5 REMARK 620 N 1 2 3 4 5 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 275 OD1 REMARK 620 2 HOH B2003 O 87.5 REMARK 620 3 HOH B2004 O 70.2 82.2 REMARK 620 4 HOH B2005 O 152.2 81.8 83.0 REMARK 620 5 HOH B2006 O 105.6 90.5 171.7 100.1 REMARK 620 6 HOH B2007 O 83.6 169.9 90.2 104.0 96.5 REMARK 620 N 1 2 3 4 5 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 238 NE2 REMARK 620 2 HIS A 274 NE2 99.3 REMARK 620 3 ASP A 275 OD2 87.9 91.6 REMARK 620 4 ASP A 392 OD2 89.4 86.9 176.6 REMARK 620 5 HOH A1007 O 162.1 97.5 85.7 97.5 REMARK 620 6 HOH A1008 O 86.5 174.0 90.0 91.8 76.8 REMARK 620 N 1 2 3 4 5 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 275 OD1 REMARK 620 2 HOH A1003 O 92.3 REMARK 620 3 HOH A1004 O 79.7 90.1 REMARK 620 4 HOH A1005 O 155.4 94.5 76.7 REMARK 620 5 HOH A1006 O 94.9 81.6 169.9 109.5 REMARK 620 6 HOH A1007 O 86.6 173.6 95.8 89.0 92.3 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 VDN A 101 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE VDN B 102 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 PDE4D IN COMPLEX WITH CILOMILAST REMARK 900 RELATED ID: 1XON RELATED DB: PDB REMARK 900 PDE4D IN COMPLEX WITH PICLAMILAST REMARK 900 RELATED ID: 1XOQ RELATED DB: PDB REMARK 900 PDE4D IN COMPLEX WITH ROFLUMILAST REMARK 900 RELATED ID: 1XOR RELATED DB: PDB REMARK 900 PDE4D IN COMPLEX WITH ZARDAVERINE REMARK 900 RELATED ID: 1XOS RELATED DB: PDB REMARK 900 PDE4B IN COMPLEX WITH SILDENAFIL 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 1XOT A 152 528 UNP Q07343 PDE4B_HUMAN 324 700 DBREF 1XOT B 152 528 UNP Q07343 PDE4B_HUMAN 324 700 SEQADV 1XOT MET A 131 UNP Q07343 INITIATING METHIONINE SEQADV 1XOT GLY A 132 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER A 133 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER A 134 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT HIS A 135 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS A 136 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS A 137 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS A 138 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS A 139 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS A 140 UNP Q07343 EXPRESSION TAG SEQADV 1XOT SER A 141 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER A 142 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT GLY A 143 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT LEU A 144 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT VAL A 145 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT PRO A 146 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT ARG A 147 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT GLY A 148 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER A 149 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT HIS A 150 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT MET A 151 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT CME A 194 UNP Q07343 CYS 366 MODIFIED RESIDUE SEQADV 1XOT MET B 131 UNP Q07343 INITIATING METHIONINE SEQADV 1XOT GLY B 132 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER B 133 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER B 134 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT HIS B 135 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS B 136 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS B 137 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS B 138 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS B 139 UNP Q07343 EXPRESSION TAG SEQADV 1XOT HIS B 140 UNP Q07343 EXPRESSION TAG SEQADV 1XOT SER B 141 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER B 142 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT GLY B 143 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT LEU B 144 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT VAL B 145 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT PRO B 146 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT ARG B 147 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT GLY B 148 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT SER B 149 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT HIS B 150 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT MET B 151 UNP Q07343 CLONING ARTIFACT SEQADV 1XOT CME B 194 UNP Q07343 CYS 366 MODIFIED RESIDUE SEQRES 1 B 398 MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY SEQRES 2 B 398 LEU VAL PRO ARG GLY SER HIS MET SER ILE SER ARG PHE SEQRES 3 B 398 GLY VAL ASN THR GLU ASN GLU ASP HIS LEU ALA LYS GLU SEQRES 4 B 398 LEU GLU ASP LEU ASN LYS TRP GLY LEU ASN ILE PHE ASN SEQRES 5 B 398 VAL ALA GLY TYR SER HIS ASN ARG PRO LEU THR CME ILE SEQRES 6 B 398 MET TYR ALA ILE PHE GLN GLU ARG ASP LEU LEU LYS THR SEQRES 7 B 398 PHE ARG ILE SER SER ASP THR PHE ILE THR TYR MET MET SEQRES 8 B 398 THR LEU GLU ASP HIS TYR HIS SER ASP VAL ALA TYR HIS SEQRES 9 B 398 ASN SER LEU HIS ALA ALA ASP VAL ALA GLN SER THR HIS SEQRES 10 B 398 VAL LEU LEU SER THR PRO ALA LEU ASP ALA VAL PHE THR SEQRES 11 B 398 ASP LEU GLU ILE LEU ALA ALA ILE PHE ALA ALA ALA ILE SEQRES 12 B 398 HIS ASP VAL ASP HIS PRO GLY VAL SER ASN GLN PHE LEU SEQRES 13 B 398 ILE ASN THR ASN SER GLU LEU ALA LEU MET TYR ASN ASP SEQRES 14 B 398 GLU SER VAL LEU GLU ASN HIS HIS LEU ALA VAL GLY PHE SEQRES 15 B 398 LYS LEU LEU GLN GLU GLU HIS CYS ASP ILE PHE MET ASN SEQRES 16 B 398 LEU THR LYS LYS GLN ARG GLN THR LEU ARG LYS MET VAL SEQRES 17 B 398 ILE ASP MET VAL LEU ALA THR ASP MET SER LYS HIS MET SEQRES 18 B 398 SER LEU LEU ALA ASP LEU LYS THR MET VAL GLU THR LYS SEQRES 19 B 398 LYS VAL THR SER SER GLY VAL LEU LEU LEU ASP ASN TYR SEQRES 20 B 398 THR ASP ARG ILE GLN VAL LEU ARG ASN MET VAL HIS CYS SEQRES 21 B 398 ALA ASP LEU SER ASN PRO THR LYS SER LEU GLU LEU TYR SEQRES 22 B 398 ARG GLN TRP THR ASP ARG ILE MET GLU GLU PHE PHE GLN SEQRES 23 B 398 GLN GLY ASP LYS GLU ARG GLU ARG GLY MET GLU ILE SER SEQRES 24 B 398 PRO MET CYS ASP LYS HIS THR ALA SER VAL GLU LYS SER SEQRES 25 B 398 GLN VAL GLY PHE ILE ASP TYR ILE VAL HIS PRO LEU TRP SEQRES 26 B 398 GLU THR TRP ALA ASP LEU VAL GLN PRO ASP ALA GLN ASP SEQRES 27 B 398 ILE LEU ASP THR LEU GLU ASP ASN ARG ASN TRP TYR GLN SEQRES 28 B 398 SER MET ILE PRO GLN SER PRO SER PRO PRO LEU ASP GLU SEQRES 29 B 398 GLN ASN ARG ASP CYS GLN GLY LEU MET GLU LYS PHE GLN SEQRES 30 B 398 PHE GLU LEU THR LEU ASP GLU GLU ASP SER GLU GLY PRO SEQRES 31 B 398 GLU LYS GLU GLY GLU GLY HIS SER SEQRES 1 A 398 MET GLY SER SER HIS HIS HIS HIS HIS HIS SER SER GLY SEQRES 2 A 398 LEU VAL PRO ARG GLY SER HIS MET SER ILE SER ARG PHE SEQRES 3 A 398 GLY VAL ASN THR GLU ASN GLU ASP HIS LEU ALA LYS GLU SEQRES 4 A 398 LEU GLU ASP LEU ASN LYS TRP GLY LEU ASN ILE PHE ASN SEQRES 5 A 398 VAL ALA GLY TYR SER HIS ASN ARG PRO LEU THR CME ILE SEQRES 6 A 398 MET TYR ALA ILE PHE GLN GLU ARG ASP LEU LEU LYS THR SEQRES 7 A 398 PHE ARG ILE SER SER ASP THR PHE ILE THR TYR MET MET SEQRES 8 A 398 THR LEU GLU ASP HIS TYR HIS SER ASP VAL ALA TYR HIS SEQRES 9 A 398 ASN SER LEU HIS ALA ALA ASP VAL ALA GLN SER THR HIS SEQRES 10 A 398 VAL LEU LEU SER THR PRO ALA LEU ASP ALA VAL PHE THR SEQRES 11 A 398 ASP LEU GLU ILE LEU ALA ALA ILE PHE ALA ALA ALA ILE SEQRES 12 A 398 HIS ASP VAL ASP HIS PRO GLY VAL SER ASN GLN PHE LEU SEQRES 13 A 398 ILE ASN THR ASN SER GLU LEU ALA LEU MET TYR ASN ASP SEQRES 14 A 398 GLU SER VAL LEU GLU ASN HIS HIS LEU ALA VAL GLY PHE SEQRES 15 A 398 LYS LEU LEU GLN GLU GLU HIS CYS ASP ILE PHE MET ASN SEQRES 16 A 398 LEU THR LYS LYS GLN ARG GLN THR LEU ARG LYS MET VAL SEQRES 17 A 398 ILE ASP MET VAL LEU ALA THR ASP MET SER LYS HIS MET SEQRES 18 A 398 SER LEU LEU ALA ASP LEU LYS THR MET VAL GLU THR LYS SEQRES 19 A 398 LYS VAL THR SER SER GLY VAL LEU LEU LEU ASP ASN TYR SEQRES 20 A 398 THR ASP ARG ILE GLN VAL LEU ARG ASN MET VAL HIS CYS SEQRES 21 A 398 ALA ASP LEU SER ASN PRO THR LYS SER LEU GLU LEU TYR SEQRES 22 A 398 ARG GLN TRP THR ASP ARG ILE MET GLU GLU PHE PHE GLN SEQRES 23 A 398 GLN GLY ASP LYS GLU ARG GLU ARG GLY MET GLU ILE SER SEQRES 24 A 398 PRO MET CYS ASP LYS HIS THR ALA SER VAL GLU LYS SER SEQRES 25 A 398 GLN VAL GLY PHE ILE ASP TYR ILE VAL HIS PRO LEU TRP SEQRES 26 A 398 GLU THR TRP ALA ASP LEU VAL GLN PRO ASP ALA GLN ASP SEQRES 27 A 398 ILE LEU ASP THR LEU GLU ASP ASN ARG ASN TRP TYR GLN SEQRES 28 A 398 SER MET ILE PRO GLN SER PRO SER PRO PRO LEU ASP GLU SEQRES 29 A 398 GLN ASN ARG ASP CYS GLN GLY LEU MET GLU LYS PHE GLN SEQRES 30 A 398 PHE GLU LEU THR LEU ASP GLU GLU ASP SER GLU GLY PRO SEQRES 31 A 398 GLU LYS GLU GLY GLU GLY HIS SER MODRES 1XOT CME B 194 CYS S,S-(2-HYDROXYETHYL)THIOCYSTEINE MODRES 1XOT CME A 194 CYS S,S-(2-HYDROXYETHYL)THIOCYSTEINE HET CME B 194 10 HET CME A 194 10 HET ZN B1001 1 HET MG B1002 1 HET VDN B 102 34 HET ZN A1001 1 HET MG A1002 1 HET VDN A 101 34 HETNAM CME S,S-(2-HYDROXYETHYL)THIOCYSTEINE HETNAM ZN ZINC ION HETNAM MG MAGNESIUM ION HETNAM VDN 2-{2-ETHOXY-5-[(4-ETHYLPIPERAZIN-1-YL)SULFONYL]PHENYL}- HETNAM 2 VDN 5-METHYL-7-PROPYLIMIDAZO[5,1-F][1,2,4]TRIAZIN-4(1H)- HETNAM 3 VDN ONE HETSYN VDN VARDENAFIL, LEVITRA FORMUL 1 CME 2(C5 H11 N O3 S2) FORMUL 3 ZN 2(ZN 2+) FORMUL 4 MG 2(MG 2+) FORMUL 5 VDN 2(C23 H32 N6 O4 S) FORMUL 9 HOH *46(H2 O) HELIX 1 1 GLU B 163 LEU B 170 1 8 HELIX 2 2 GLU B 171 LEU B 173 5 3 HELIX 3 3 ASN B 179 TYR B 186 1 8 HELIX 4 4 ARG B 190 ARG B 203 1 14 HELIX 5 5 ASP B 204 PHE B 209 1 6 HELIX 6 6 SER B 212 HIS B 226 1 15 HELIX 7 7 ASN B 235 LEU B 250 1 16 HELIX 8 8 SER B 251 ASP B 256 5 6 HELIX 9 9 THR B 260 HIS B 274 1 15 HELIX 10 10 SER B 282 THR B 289 1 8 HELIX 11 11 SER B 291 ASN B 298 1 8 HELIX 12 12 SER B 301 LEU B 314 1 14 HELIX 13 13 GLU B 317 ASP B 321 5 5 HELIX 14 14 THR B 327 ALA B 344 1 18 HELIX 15 15 THR B 345 SER B 348 5 4 HELIX 16 16 LYS B 349 THR B 363 1 15 HELIX 17 17 ASN B 376 LEU B 393 1 18 HELIX 18 18 SER B 394 LYS B 398 5 5 HELIX 19 19 SER B 399 GLY B 425 1 27 HELIX 20 20 SER B 438 ILE B 450 1 13 HELIX 21 21 ILE B 450 VAL B 462 1 13 HELIX 22 22 ALA B 466 ILE B 484 1 19 HELIX 23 23 GLU A 163 GLU A 171 1 9 HELIX 24 24 ASN A 179 SER A 187 1 9 HELIX 25 25 ARG A 190 ARG A 203 1 14 HELIX 26 26 ASP A 204 PHE A 209 1 6 HELIX 27 27 SER A 212 TYR A 227 1 16 HELIX 28 28 ASN A 235 LEU A 250 1 16 HELIX 29 29 SER A 251 ASP A 256 5 6 HELIX 30 30 THR A 260 HIS A 274 1 15 HELIX 31 31 SER A 282 THR A 289 1 8 HELIX 32 32 SER A 291 TYR A 297 1 7 HELIX 33 33 SER A 301 LEU A 314 1 14 HELIX 34 34 LEU A 315 GLN A 316 5 2 HELIX 35 35 GLU A 317 ASP A 321 5 5 HELIX 36 36 THR A 327 ALA A 344 1 18 HELIX 37 37 THR A 345 SER A 348 5 4 HELIX 38 38 LYS A 349 THR A 363 1 15 HELIX 39 39 ASN A 376 LEU A 393 1 18 HELIX 40 40 SER A 394 LYS A 398 5 5 HELIX 41 41 SER A 399 GLY A 425 1 27 HELIX 42 42 SER A 438 ILE A 450 1 13 HELIX 43 43 ILE A 450 VAL A 462 1 13 HELIX 44 44 ALA A 466 MET A 483 1 18 LINK C THR B 193 N CME B 194 1555 1555 1.32 LINK C CME B 194 N ILE B 195 1555 1555 1.35 LINK C THR A 193 N CME A 194 1555 1555 1.32 LINK C CME A 194 N ILE A 195 1555 1555 1.34 LINK NE2 HIS B 238 ZN ZN B1001 1555 1555 2.34 LINK NE2 HIS B 274 ZN ZN B1001 1555 1555 2.08 LINK OD2 ASP B 275 ZN ZN B1001 1555 1555 2.25 LINK OD1 ASP B 275 MG MG B1002 1555 1555 2.11 LINK OD2 ASP B 392 ZN ZN B1001 1555 1555 2.18 LINK ZN ZN B1001 O HOH B2007 1555 1555 2.05 LINK ZN ZN B1001 O HOH B2008 1555 1555 2.11 LINK MG MG B1002 O HOH B2003 1555 1555 2.14 LINK MG MG B1002 O HOH B2004 1555 1555 2.14 LINK MG MG B1002 O HOH B2005 1555 1555 2.05 LINK MG MG B1002 O HOH B2006 1555 1555 2.25 LINK MG MG B1002 O HOH B2007 1555 1555 1.93 LINK NE2 HIS A 238 ZN ZN A1001 1555 1555 2.40 LINK NE2 HIS A 274 ZN ZN A1001 1555 1555 2.26 LINK OD2 ASP A 275 ZN ZN A1001 1555 1555 2.33 LINK OD1 ASP A 275 MG MG A1002 1555 1555 2.02 LINK OD2 ASP A 392 ZN ZN A1001 1555 1555 1.95 LINK ZN ZN A1001 O HOH A1007 1555 1555 2.12 LINK ZN ZN A1001 O HOH A1008 1555 1555 1.77 LINK MG MG A1002 O HOH A1003 1555 1555 2.21 LINK MG MG A1002 O HOH A1004 1555 1555 1.89 LINK MG MG A1002 O HOH A1005 1555 1555 2.09 LINK MG MG A1002 O HOH A1006 1555 1555 2.08 LINK MG MG A1002 O HOH A1007 1555 1555 2.02 CISPEP 1 GLN B 463 PRO B 464 0 1.40 CISPEP 2 GLN A 463 PRO A 464 0 -2.72 SITE 1 AC1 6 HIS A 238 HIS A 274 ASP A 275 ASP A 392 SITE 2 AC1 6 HOH A1007 HOH A1008 SITE 1 AC2 6 ASP A 275 HOH A1003 HOH A1004 HOH A1005 SITE 2 AC2 6 HOH A1006 HOH A1007 SITE 1 AC3 6 HIS B 238 HIS B 274 ASP B 275 ASP B 392 SITE 2 AC3 6 HOH B2007 HOH B2008 SITE 1 AC4 6 ASP B 275 HOH B2003 HOH B2004 HOH B2005 SITE 2 AC4 6 HOH B2006 HOH B2007 SITE 1 AC5 13 HOH A 27 TYR A 233 HIS A 234 MET A 347 SITE 2 AC5 13 ASN A 395 MET A 411 SER A 429 MET A 431 SITE 3 AC5 13 SER A 442 GLN A 443 PHE A 446 HOH A1006 SITE 4 AC5 13 HOH A1008 SITE 1 AC6 14 HOH B 2 HOH B 30 TYR B 233 HIS B 234 SITE 2 AC6 14 MET B 347 ASN B 395 ILE B 410 MET B 411 SITE 3 AC6 14 SER B 429 MET B 431 SER B 442 GLN B 443 SITE 4 AC6 14 PHE B 446 HOH B2008 CRYST1 89.841 94.423 108.755 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 0.011131 0.000000 0.000000 0.00000 SCALE2 0.000000 0.010591 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009195 0.00000