HEADER HYDROLASE/HYDROLASE INHIBITOR 24-AUG-23 8W4T TITLE CRYSTAL STRUCTURE OF PDE5A IN COMPLEX WITH A NOVEL INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: PHOSPHODIESTERASE TYPE 5, CGMP-BINDING CGMP-SPECIFIC COMPND 5 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: PDE5A, PDE5; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3) KEYWDS PDE5A, INHIBITOR, COMPLEX STRUCTURE, HYDROLASE, HYDROLASE-HYDROLASE KEYWDS 2 INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.Y.LIU,M.J.LI,Y.C.XU REVDAT 1 22-NOV-23 8W4T 0 JRNL AUTH J.LIU,X.ZHANG,G.CHEN,Q.SHAO,Y.ZOU,Z.LI,H.SU,M.LI,Y.XU JRNL TITL DRUG REPURPOSING AND STRUCTURE-BASED DISCOVERY OF NEW PDE4 JRNL TITL 2 AND PDE5 INHIBITORS. JRNL REF EUR.J.MED.CHEM. V. 262 15893 2023 JRNL REFN ISSN 0223-5234 JRNL PMID 37918035 JRNL DOI 10.1016/J.EJMECH.2023.115893 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.17.1_3660 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 32.52 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.380 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.6 REMARK 3 NUMBER OF REFLECTIONS : 21324 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.222 REMARK 3 R VALUE (WORKING SET) : 0.220 REMARK 3 FREE R VALUE : 0.268 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.690 REMARK 3 FREE R VALUE TEST SET COUNT : 1000 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 32.5200 - 4.2040 1.00 3229 136 0.1824 0.2251 REMARK 3 2 4.2040 - 3.3379 1.00 3059 165 0.1989 0.2142 REMARK 3 3 3.3379 - 2.9163 1.00 3028 142 0.2380 0.3392 REMARK 3 4 2.9163 - 2.6498 1.00 2996 172 0.2483 0.2997 REMARK 3 5 2.6498 - 2.4599 1.00 2994 150 0.2591 0.3013 REMARK 3 6 2.4599 - 2.3149 1.00 2981 132 0.2760 0.3245 REMARK 3 7 2.3149 - 2.1990 0.69 2037 103 0.2781 0.3334 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) : 0.320 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 26.960 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL 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 : 0.002 2399 REMARK 3 ANGLE : 0.428 3247 REMARK 3 CHIRALITY : 0.032 375 REMARK 3 PLANARITY : 0.003 410 REMARK 3 DIHEDRAL : 7.283 1457 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 8W4T COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 06-SEP-23. REMARK 100 THE DEPOSITION ID IS D_1300040112. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-MAY-18 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 : BL18U1 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 : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS PILATUS 6M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-3000 REMARK 200 DATA SCALING SOFTWARE : HKL-3000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22346 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.199 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 100.0 REMARK 200 DATA REDUNDANCY : 19.00 REMARK 200 R MERGE (I) : 0.10900 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 9.1000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.24 REMARK 200 COMPLETENESS FOR SHELL (%) : 100.0 REMARK 200 DATA REDUNDANCY IN SHELL : 14.70 REMARK 200 R MERGE FOR SHELL (I) : 2.54900 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : NULL 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 (%): 53.67 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.66 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M TRIS-HCL, 0.2 M MGSO4, 20% PEG REMARK 280 3350, PH 7.5, VAPOR DIFFUSION, HANGING DROP, 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 43.96300 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 87.92600 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 87.92600 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 43.96300 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 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 GLU A 535 REMARK 465 GLU A 669 REMARK 465 HIS A 670 REMARK 465 PRO A 671 REMARK 465 LEU A 672 REMARK 465 ALA A 673 REMARK 465 GLN A 674 REMARK 465 LEU A 675 REMARK 465 TYR A 676 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 LYS A 810 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 ARG A 538 CG CD NE CZ NH1 NH2 REMARK 470 SER A 663 OG REMARK 470 TYR A 664 CG CD1 CD2 CE1 CE2 CZ OH REMARK 470 ARG A 667 CG CD NE CZ NH1 NH2 REMARK 470 HIS A 678 CG ND1 CD2 CE1 NE2 REMARK 470 ILE A 680 CD1 REMARK 470 MET A 681 CE REMARK 470 ILE A 706 CD1 REMARK 470 LYS A 730 CG CD CE NZ REMARK 470 ARG A 731 CZ NH1 NH2 REMARK 470 GLU A 737 CG CD OE1 OE2 REMARK 470 ILE A 739 CD1 REMARK 470 ASN A 742 CG OD1 ND2 REMARK 470 GLU A 747 CG CD OE1 OE2 REMARK 470 ASP A 788 CG OD1 OD2 REMARK 470 ASN A 811 CG OD1 ND2 REMARK 470 LYS A 812 CG CD CE NZ REMARK 470 GLU A 837 CG CD OE1 OE2 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 -75.43 -81.36 REMARK 500 PHE A 787 -79.63 -97.76 REMARK 500 ILE A 824 -59.93 -120.88 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 900 ZN REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HIS A 617 NE2 REMARK 620 2 HIS A 653 NE2 93.2 REMARK 620 3 ASP A 654 OD1 92.0 87.5 REMARK 620 4 ASP A 764 OD1 88.3 85.7 173.3 REMARK 620 5 HOH A1003 O 172.0 94.5 90.5 90.2 REMARK 620 6 HOH A1010 O 87.8 176.6 95.7 91.0 84.4 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 901 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 654 OD1 REMARK 620 2 ASP A 654 OD2 48.4 REMARK 620 3 HOH A1001 O 121.2 104.9 REMARK 620 4 HOH A1003 O 81.1 128.6 92.5 REMARK 620 5 HOH A1007 O 153.5 153.6 75.3 77.3 REMARK 620 6 HOH A1026 O 126.8 83.4 87.7 146.3 70.2 REMARK 620 7 HOH A1048 O 84.4 99.3 152.8 81.9 77.5 82.8 REMARK 620 N 1 2 3 4 5 6 DBREF 8W4T A 535 860 UNP O76074 PDE5A_HUMAN 535 860 SEQADV 8W4T MET A 514 UNP O76074 EXPRESSION TAG SEQADV 8W4T GLY A 515 UNP O76074 EXPRESSION TAG SEQADV 8W4T SER A 516 UNP O76074 EXPRESSION TAG SEQADV 8W4T SER A 517 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 518 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 519 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 520 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 521 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 522 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 523 UNP O76074 EXPRESSION TAG SEQADV 8W4T SER A 524 UNP O76074 EXPRESSION TAG SEQADV 8W4T SER A 525 UNP O76074 EXPRESSION TAG SEQADV 8W4T GLY A 526 UNP O76074 EXPRESSION TAG SEQADV 8W4T LEU A 527 UNP O76074 EXPRESSION TAG SEQADV 8W4T VAL A 528 UNP O76074 EXPRESSION TAG SEQADV 8W4T PRO A 529 UNP O76074 EXPRESSION TAG SEQADV 8W4T ARG A 530 UNP O76074 EXPRESSION TAG SEQADV 8W4T GLY A 531 UNP O76074 EXPRESSION TAG SEQADV 8W4T SER A 532 UNP O76074 EXPRESSION TAG SEQADV 8W4T HIS A 533 UNP O76074 EXPRESSION TAG SEQADV 8W4T 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 ZN A 900 1 HET MG A 901 1 HET VZF A 902 30 HETNAM ZN ZINC ION HETNAM MG MAGNESIUM ION HETNAM VZF 2-[BIS(2-HYDROXYETHYL)AMINO]-6-[(4-METHOXYPHENYL) HETNAM 2 VZF METHYLAMINO]-9-PROPAN-2-YL-7~{H}-PURIN-8-ONE FORMUL 2 ZN ZN 2+ FORMUL 3 MG MG 2+ FORMUL 4 VZF C20 H28 N6 O4 FORMUL 5 HOH *57(H2 O) HELIX 1 AA1 THR A 537 ALA A 545 1 9 HELIX 2 AA2 SER A 550 LYS A 555 1 6 HELIX 3 AA3 SER A 567 LEU A 582 1 16 HELIX 4 AA4 ASN A 583 PHE A 588 1 6 HELIX 5 AA5 LYS A 591 ASN A 605 1 15 HELIX 6 AA6 ASN A 614 ALA A 631 1 18 HELIX 7 AA7 ILE A 634 LEU A 638 5 5 HELIX 8 AA8 THR A 639 HIS A 653 1 15 HELIX 9 AA9 SER A 663 SER A 668 1 6 HELIX 10 AB1 SER A 679 ASN A 694 1 16 HELIX 11 AB2 SER A 705 THR A 723 1 19 HELIX 12 AB3 ASP A 724 ARG A 740 1 17 HELIX 13 AB4 ASP A 748 LEU A 765 1 18 HELIX 14 AB5 SER A 766 LYS A 770 5 5 HELIX 15 AB6 PRO A 771 PHE A 787 1 17 HELIX 16 AB7 LYS A 812 ILE A 824 1 13 HELIX 17 AB8 ILE A 824 SER A 836 1 13 HELIX 18 AB9 CYS A 839 GLN A 859 1 21 LINK NE2 HIS A 617 ZN ZN A 900 1555 1555 2.23 LINK NE2 HIS A 653 ZN ZN A 900 1555 1555 2.17 LINK OD1 ASP A 654 ZN ZN A 900 1555 1555 2.18 LINK OD1 ASP A 654 MG MG A 901 1555 1555 2.92 LINK OD2 ASP A 654 MG MG A 901 1555 1555 2.18 LINK OD1 ASP A 764 ZN ZN A 900 1555 1555 2.16 LINK ZN ZN A 900 O HOH A1003 1555 1555 2.44 LINK ZN ZN A 900 O HOH A1010 1555 1555 2.34 LINK MG MG A 901 O HOH A1001 1555 1555 2.16 LINK MG MG A 901 O HOH A1003 1555 1555 2.01 LINK MG MG A 901 O HOH A1007 1555 1555 2.36 LINK MG MG A 901 O HOH A1026 1555 1555 2.09 LINK MG MG A 901 O HOH A1048 1555 1555 1.96 CRYST1 74.776 74.776 131.889 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 0.013373 0.007721 0.000000 0.00000 SCALE2 0.000000 0.015442 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007582 0.00000