HEADER PROTEIN BINDING 25-OCT-25 9XC4 TITLE CRYSTAL STRUCTURE OF PDE5A IN COMPLEX WITH ICARIIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CGMP-SPECIFIC 3',5'-CYCLIC PHOSPHODIESTERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CGMP-BINDING CGMP-SPECIFIC PHOSPHODIESTERASE,CGB-PDE; COMPND 5 EC: 3.1.4.35; COMPND 6 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; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS THE PREPARED FOLIUM OF EPIMEDIUM SAGITTATUM MAXIM.; FLAVONOID; KEYWDS 2 PRENYLHYDROQUINONE; MALE ERECTILE DYSFUNCTION; PHOSPHODIESTERASE-5A KEYWDS 3 INHIBITORY ACTIVITY, PROTEIN BINDING EXPDTA X-RAY DIFFRACTION AUTHOR W.SIQI REVDAT 1 14-OCT-26 9XC4 0 JRNL AUTH Y.FANG,S.WU,J.XU,J.CHEN,W.SHI,H.WANG,S.LI,H.XIE,H.TAO,L.PAN, JRNL AUTH 2 Y.ZANG,G.YAO,X.ZHENG JRNL TITL MECHANISTIC STUDY OF PDE5A INHIBITORS FROM THE PREPARED JRNL TITL 2 FOLIUM OF EPIMEDIUM SAGITTATUM MAXIM. JRNL REF J.STRUCT.BIOL. V. 218 08279 2026 JRNL REFN ESSN 1095-8657 JRNL PMID 41380862 JRNL DOI 10.1016/J.JSB.2025.108279 REMARK 2 REMARK 2 RESOLUTION. 2.77 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX (1.20.1_4487: ???) 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) : 2.77 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.02 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 99.9 REMARK 3 NUMBER OF REFLECTIONS : 11250 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.215 REMARK 3 R VALUE (WORKING SET) : 0.213 REMARK 3 FREE R VALUE : 0.258 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.800 REMARK 3 FREE R VALUE TEST SET COUNT : 540 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 26.0200 - 4.3900 1.00 2790 130 0.1844 0.2314 REMARK 3 2 4.3900 - 3.4900 1.00 2681 131 0.2442 0.2589 REMARK 3 3 3.4900 - 3.0500 1.00 2646 139 0.2253 0.3391 REMARK 3 4 3.0500 - 2.7700 1.00 2593 140 0.3083 0.3107 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : FLAT BULK SOLVENT MODEL REMARK 3 SOLVENT RADIUS : 1.10 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) : 0.390 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 28.180 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 : 0.009 2231 REMARK 3 ANGLE : 1.164 3043 REMARK 3 CHIRALITY : 0.059 364 REMARK 3 PLANARITY : 0.007 381 REMARK 3 DIHEDRAL : 9.596 307 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : 1 REMARK 3 TLS GROUP : 1 REMARK 3 SELECTION: ALL REMARK 3 ORIGIN FOR THE GROUP (A): 35.0834 -14.1338 -4.7735 REMARK 3 T TENSOR REMARK 3 T11: 0.8110 T22: 0.6319 REMARK 3 T33: 0.6607 T12: -0.0893 REMARK 3 T13: -0.0003 T23: 0.0299 REMARK 3 L TENSOR REMARK 3 L11: 3.5902 L22: 4.4115 REMARK 3 L33: 2.9024 L12: 1.8207 REMARK 3 L13: 0.3518 L23: 1.7325 REMARK 3 S TENSOR REMARK 3 S11: 0.0348 S12: 0.2174 S13: -0.1340 REMARK 3 S21: 0.1590 S22: 0.0406 S23: -0.2181 REMARK 3 S31: -0.0990 S32: 0.1407 S33: -0.0981 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 9XC4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBC ON 08-NOV-25. REMARK 100 THE DEPOSITION ID IS D_1300065074. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 27-APR-24 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRF REMARK 200 BEAMLINE : BL02U1 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.97918 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 9M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : AUTOPROC REMARK 200 DATA SCALING SOFTWARE : AIMLESS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11253 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.770 REMARK 200 RESOLUTION RANGE LOW (A) : 28.990 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.8 REMARK 200 DATA REDUNDANCY : 14.80 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 2.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.77 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.92 REMARK 200 COMPLETENESS FOR SHELL (%) : NULL REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : NULL 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 (%): 56.38 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.82 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 100 MM TRIS-HCL AT PH 8.5, 100 MM REMARK 280 MGSO4 AND 20% (W/V) PEG 3350, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K 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 43.98667 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 87.97333 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 87.97333 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 43.98667 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, E 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 GLU A 534 REMARK 465 GLU A 535 REMARK 465 GLU A 536 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 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 CYS A 677 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 LYS A 810 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 LEU A 540 CG CD1 CD2 REMARK 470 GLN A 541 CG CD OE1 NE2 REMARK 470 LEU A 543 CG CD1 CD2 REMARK 470 GLN A 552 CG CD OE1 NE2 REMARK 470 LYS A 555 CG CD CE NZ REMARK 470 LEU A 573 CG CD1 CD2 REMARK 470 GLN A 589 CG CD OE1 NE2 REMARK 470 GLU A 593 CG CD OE1 OE2 REMARK 470 LYS A 604 CG CD CE NZ REMARK 470 LYS A 608 CG CD CE NZ REMARK 470 LYS A 630 CG CD CE NZ REMARK 470 ARG A 658 CG CD NE CZ NH1 NH2 REMARK 470 ASN A 661 CG OD1 ND2 REMARK 470 ASN A 662 CG OD1 ND2 REMARK 470 ILE A 680 CG1 CG2 CD1 REMARK 470 ILE A 700 CG1 CG2 CD1 REMARK 470 ILE A 706 CG1 CG2 CD1 REMARK 470 GLU A 707 CG CD OE1 OE2 REMARK 470 LYS A 710 CG CD CE NZ REMARK 470 LYS A 714 CG CD CE NZ REMARK 470 LEU A 725 CG CD1 CD2 REMARK 470 LYS A 730 CG CD CE NZ REMARK 470 GLU A 737 CG CD OE1 OE2 REMARK 470 LEU A 738 CG CD1 CD2 REMARK 470 ILE A 739 CG1 CG2 CD1 REMARK 470 ARG A 740 CG CD NE CZ NH1 NH2 REMARK 470 LYS A 741 CG CD CE NZ REMARK 470 ASN A 742 CG OD1 ND2 REMARK 470 PHE A 744 CG CD1 CD2 CE1 CE2 CZ REMARK 470 ASN A 745 CG OD1 ND2 REMARK 470 GLU A 747 CG CD OE1 OE2 REMARK 470 GLN A 751 CG CD OE1 NE2 REMARK 470 LEU A 754 CG CD1 CD2 REMARK 470 GLU A 780 CG CD OE1 OE2 REMARK 470 PHE A 786 CG CD1 CD2 CE1 CE2 CZ 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 830 CG CD OE1 OE2 REMARK 470 HIS A 834 CG ND1 CD2 CE1 NE2 REMARK 470 GLU A 837 CG CD OE1 OE2 REMARK 470 ARG A 850 CG CD NE CZ NH1 NH2 REMARK 470 GLN A 851 CG CD OE1 NE2 REMARK 470 LYS A 852 CG CD CE NZ REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 C ASP A 788 O HOH A 1004 1.60 REMARK 500 N ASN A 811 O HOH A 1002 1.79 REMARK 500 O HIS A 653 O HOH A 1003 1.89 REMARK 500 O ASP A 788 O HOH A 1004 1.94 REMARK 500 OG SER A 601 OD1 ASN A 698 2.15 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 ASN A 661 48.81 -93.38 REMARK 500 ILE A 700 3.46 -67.78 REMARK 500 PRO A 771 157.84 -49.55 REMARK 500 ILE A 824 -52.07 -127.81 REMARK 500 ALA A 855 77.23 -68.68 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 103.0 REMARK 620 3 ASP A 654 OD2 112.3 82.7 REMARK 620 4 ASP A 764 OD1 83.0 72.6 153.5 REMARK 620 5 RAM E 3 O4 114.8 138.8 97.0 95.5 REMARK 620 N 1 2 3 4 DBREF 9XC4 A 534 857 UNP O76074 PDE5A_HUMAN 534 857 SEQRES 1 A 324 GLU GLU GLU THR ARG GLU LEU GLN SER LEU ALA ALA ALA SEQRES 2 A 324 VAL VAL PRO SER ALA GLN THR LEU LYS ILE THR ASP PHE SEQRES 3 A 324 SER PHE SER ASP PHE GLU LEU SER ASP LEU GLU THR ALA SEQRES 4 A 324 LEU CYS THR ILE ARG MET PHE THR ASP LEU ASN LEU VAL SEQRES 5 A 324 GLN ASN PHE GLN MET LYS HIS GLU VAL LEU CYS ARG TRP SEQRES 6 A 324 ILE LEU SER VAL LYS LYS ASN TYR ARG LYS ASN VAL ALA SEQRES 7 A 324 TYR HIS ASN TRP ARG HIS ALA PHE ASN THR ALA GLN CYS SEQRES 8 A 324 MET PHE ALA ALA LEU LYS ALA GLY LYS ILE GLN ASN LYS SEQRES 9 A 324 LEU THR ASP LEU GLU ILE LEU ALA LEU LEU ILE ALA ALA SEQRES 10 A 324 LEU SER HIS ASP LEU ASP HIS ARG GLY VAL ASN ASN SER SEQRES 11 A 324 TYR ILE GLN ARG SER GLU HIS PRO LEU ALA GLN LEU TYR SEQRES 12 A 324 CYS HIS SER ILE MET GLU HIS HIS HIS PHE ASP GLN CYS SEQRES 13 A 324 LEU MET ILE LEU ASN SER PRO GLY ASN GLN ILE LEU SER SEQRES 14 A 324 GLY LEU SER ILE GLU GLU TYR LYS THR THR LEU LYS ILE SEQRES 15 A 324 ILE LYS GLN ALA ILE LEU ALA THR ASP LEU ALA LEU TYR SEQRES 16 A 324 ILE LYS ARG ARG GLY GLU PHE PHE GLU LEU ILE ARG LYS SEQRES 17 A 324 ASN GLN PHE ASN LEU GLU ASP PRO HIS GLN LYS GLU LEU SEQRES 18 A 324 PHE LEU ALA MET LEU MET THR ALA CYS ASP LEU SER ALA SEQRES 19 A 324 ILE THR LYS PRO TRP PRO ILE GLN GLN ARG ILE ALA GLU SEQRES 20 A 324 LEU VAL ALA THR GLU PHE PHE ASP GLN GLY ASP ARG GLU SEQRES 21 A 324 ARG LYS GLU LEU ASN ILE GLU PRO THR ASP LEU MET ASN SEQRES 22 A 324 ARG GLU LYS LYS ASN LYS ILE PRO SER MET GLN VAL GLY SEQRES 23 A 324 PHE ILE ASP ALA ILE CYS LEU GLN LEU TYR GLU ALA LEU SEQRES 24 A 324 THR HIS VAL SER GLU ASP CYS PHE PRO LEU LEU ASP GLY SEQRES 25 A 324 CYS ARG LYS ASN ARG GLN LYS TRP GLN ALA LEU ALA HET Z54 E 1 27 HET BGC E 2 11 HET RAM E 3 10 HET GOL A 901 6 HET ZN A 902 1 HET MG A 903 1 HETNAM Z54 3,5,7-TRIHYDROXY-2-(4-METHOXYPHENYL)-8-(3-METHYLBUTYL)- HETNAM 2 Z54 4H-CHROMEN-4-ONE HETNAM BGC BETA-D-GLUCOPYRANOSE HETNAM RAM ALPHA-L-RHAMNOPYRANOSE HETNAM GOL GLYCEROL HETNAM ZN ZINC ION HETNAM MG MAGNESIUM ION HETSYN BGC BETA-D-GLUCOSE; D-GLUCOSE; GLUCOSE HETSYN RAM ALPHA-L-RHAMNOSE; 6-DEOXY-ALPHA-L-MANNOPYRANOSE; L- HETSYN 2 RAM RHAMNOSE; RHAMNOSE HETSYN GOL GLYCERIN; PROPANE-1,2,3-TRIOL FORMUL 2 Z54 C21 H22 O6 FORMUL 2 BGC C6 H12 O6 FORMUL 2 RAM C6 H12 O5 FORMUL 3 GOL C3 H8 O3 FORMUL 4 ZN ZN 2+ FORMUL 5 MG MG 2+ FORMUL 6 HOH *10(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 LYS A 630 1 17 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 679 ASN A 694 1 16 HELIX 10 AB1 SER A 705 ALA A 722 1 18 HELIX 11 AB2 ASP A 724 LYS A 741 1 18 HELIX 12 AB3 ASP A 748 LEU A 765 1 18 HELIX 13 AB4 SER A 766 LYS A 770 5 5 HELIX 14 AB5 PRO A 771 ASP A 788 1 18 HELIX 15 AB6 LYS A 812 ILE A 824 1 13 HELIX 16 AB7 ILE A 824 HIS A 834 1 11 HELIX 17 AB8 SER A 836 ASP A 838 5 3 HELIX 18 AB9 CYS A 839 GLN A 854 1 16 LINK O5 Z54 E 1 C1 BGC E 2 1555 1555 1.40 LINK O6 Z54 E 1 C1 RAM E 3 1555 1555 1.42 LINK NE2 HIS A 617 ZN ZN A 902 1555 1555 2.27 LINK NE2 HIS A 653 ZN ZN A 902 1555 1555 2.22 LINK OD2 ASP A 654 ZN ZN A 902 1555 1555 1.88 LINK OD1 ASP A 654 MG MG A 903 1555 1555 2.31 LINK OD1 ASP A 764 ZN ZN A 902 1555 1555 2.17 LINK ZN ZN A 902 O4 RAM E 3 1555 1555 2.44 CRYST1 74.540 74.540 131.960 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 0.013416 0.007746 0.000000 0.00000 SCALE2 0.000000 0.015491 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007578 0.00000 CONECT 627 2188 CONECT 891 2188 CONECT 898 2189 CONECT 899 2188 CONECT 1608 2188 CONECT 2134 2135 CONECT 2135 2134 2136 CONECT 2136 2135 2137 2139 CONECT 2137 2136 2138 CONECT 2138 2137 2141 CONECT 2139 2136 2140 CONECT 2140 2139 2141 CONECT 2141 2138 2140 2142 CONECT 2142 2141 2143 2144 CONECT 2143 2142 2147 CONECT 2144 2142 2145 2160 CONECT 2145 2144 2146 2148 CONECT 2146 2145 2147 2149 CONECT 2147 2143 2146 2152 CONECT 2148 2145 CONECT 2149 2146 2150 2153 CONECT 2150 2149 2151 CONECT 2151 2150 2152 2154 CONECT 2152 2147 2151 2155 CONECT 2153 2149 CONECT 2154 2151 2166 CONECT 2155 2152 2156 CONECT 2156 2155 2157 CONECT 2157 2156 2158 2159 CONECT 2158 2157 CONECT 2159 2157 CONECT 2160 2144 2172 CONECT 2161 2162 2166 2167 CONECT 2162 2161 2163 2168 CONECT 2163 2162 2164 2169 CONECT 2164 2163 2165 2170 CONECT 2165 2164 2171 CONECT 2166 2154 2161 2170 CONECT 2167 2161 CONECT 2168 2162 CONECT 2169 2163 CONECT 2170 2164 2166 CONECT 2171 2165 CONECT 2172 2160 2173 2181 CONECT 2173 2172 2174 2178 CONECT 2174 2173 2175 2179 CONECT 2175 2174 2176 2180 CONECT 2176 2175 2177 2181 CONECT 2177 2176 CONECT 2178 2173 CONECT 2179 2174 CONECT 2180 2175 2188 CONECT 2181 2172 2176 CONECT 2182 2183 2184 CONECT 2183 2182 CONECT 2184 2182 2185 2186 CONECT 2185 2184 CONECT 2186 2184 2187 CONECT 2187 2186 CONECT 2188 627 891 899 1608 CONECT 2188 2180 CONECT 2189 898 MASTER 360 0 6 18 0 0 0 6 2198 1 62 25 END