HEADER LUMINESCENT PROTEIN 12-JAN-23 8C6O TITLE CRYSTAL STRUCTURE OF H64F OBELIN MUTANT FROM OBELIA LONGISSIMA AT 2.2 TITLE 2 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: OBELIN; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: OBL; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: OBELIA LONGISSIMA; SOURCE 3 ORGANISM_TAXID: 32570; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS BIOLUMINESCENCE, PHOTOPROTEIN, OBELIN, LUMINESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR P.V.NATASHIN,L.P.BURAKOVA,M.I.KOVALEVA,M.B.SCHEVTSOV,D.A.DMITRIEVA, AUTHOR 2 E.V.EREMEEVA,S.V.MARKOVA,A.V.MISHIN,V.I.BORSHCHEVSKIY,E.S.VYSOTSKI REVDAT 2 26-APR-23 8C6O 1 JRNL REVDAT 1 29-MAR-23 8C6O 0 JRNL AUTH P.V.NATASHIN,L.P.BURAKOVA,M.I.KOVALEVA,M.B.SHEVTSOV, JRNL AUTH 2 D.A.DMITRIEVA,E.V.EREMEEVA,S.V.MARKOVA,A.V.MISHIN, JRNL AUTH 3 V.I.BORSHCHEVSKIY,E.S.VYSOTSKI JRNL TITL THE ROLE OF TYR-HIS-TRP TRIAD AND WATER MOLECULE NEAR THE JRNL TITL 2 N1-ATOM OF 2-HYDROPEROXYCOELENTERAZINE IN BIOLUMINESCENCE OF JRNL TITL 3 HYDROMEDUSAN PHOTOPROTEINS: STRUCTURAL AND MUTAGENESIS JRNL TITL 4 STUDY. JRNL REF INT J MOL SCI V. 24 2023 JRNL REFN ESSN 1422-0067 JRNL PMID 37047842 JRNL DOI 10.3390/IJMS24076869 REMARK 2 REMARK 2 RESOLUTION. 2.20 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.20.1 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) : 38.76 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.350 REMARK 3 COMPLETENESS FOR RANGE (%) : 95.9 REMARK 3 NUMBER OF REFLECTIONS : 29717 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.168 REMARK 3 R VALUE (WORKING SET) : 0.167 REMARK 3 FREE R VALUE : 0.199 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 2.840 REMARK 3 FREE R VALUE TEST SET COUNT : 843 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 38.7600 - 4.0000 0.94 4767 128 0.1503 0.1712 REMARK 3 2 4.0000 - 3.1700 0.95 4758 149 0.1331 0.1592 REMARK 3 3 3.1700 - 2.7700 0.95 4758 154 0.1637 0.2088 REMARK 3 4 2.7700 - 2.5200 0.97 4833 167 0.1999 0.2556 REMARK 3 5 2.5200 - 2.3400 0.97 4896 133 0.2257 0.3104 REMARK 3 6 2.3400 - 2.2000 0.97 4862 112 0.3016 0.3055 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) : 0.310 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 22.690 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 : 0.010 3269 REMARK 3 ANGLE : 0.882 4435 REMARK 3 CHIRALITY : 0.048 448 REMARK 3 PLANARITY : 0.006 643 REMARK 3 DIHEDRAL : 13.152 1219 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 8C6O COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBE ON 12-JAN-23. REMARK 100 THE DEPOSITION ID IS D_1292126894. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 26-FEB-22 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : MASSIF-3 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9677 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : PIXEL REMARK 200 DETECTOR MANUFACTURER : DECTRIS EIGER X 4M REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XDS REMARK 200 DATA SCALING SOFTWARE : XSCALE REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29727 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 38.760 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 95.9 REMARK 200 DATA REDUNDANCY : 5.400 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 8.7300 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) : 2.28 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: AUTO-RICKSHAW REMARK 200 STARTING MODEL: AF-Q27709-F1 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 65.01 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.52 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 2.1 MALIC ACID, PH 7, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 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 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 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 60.07333 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 120.14667 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 90.11000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 150.18333 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 30.03667 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 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 1 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 SER A 2 OG REMARK 470 LYS A 4 CG CD CE NZ REMARK 470 LYS A 8 NZ REMARK 470 LYS A 10 CD CE NZ REMARK 470 LYS A 62 CE NZ REMARK 470 LYS A 81 CE NZ REMARK 470 SER B 2 OG REMARK 470 LYS B 4 CD CE NZ REMARK 470 LYS B 8 CD CE NZ REMARK 470 LYS B 10 CD CE NZ REMARK 470 LYS B 62 CD CE NZ REMARK 470 LYS B 140 CD CE NZ REMARK 470 GLU B 149 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 SER A 3 -8.02 71.30 REMARK 500 ASP A 49 -71.02 -111.61 REMARK 500 SER A 145 70.65 -151.23 REMARK 500 SER B 3 126.02 -174.54 REMARK 500 ASP B 12 59.01 -149.67 REMARK 500 SER B 145 67.52 -158.12 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 A1341 DISTANCE = 6.31 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 NA A1102 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 30 OD1 REMARK 620 2 ASN A 32 OD1 77.6 REMARK 620 3 ASN A 34 OD1 88.8 87.2 REMARK 620 4 LYS A 36 O 108.2 171.0 86.1 REMARK 620 5 HOH A1226 O 153.5 76.6 95.7 98.2 REMARK 620 6 HOH A1251 O 106.7 96.8 164.4 88.2 70.7 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 NA B1102 NA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP B 30 OD1 REMARK 620 2 ASN B 32 OD1 80.2 REMARK 620 3 ASN B 34 OD1 89.6 90.6 REMARK 620 4 LYS B 36 O 96.9 175.8 86.2 REMARK 620 5 HOH B1278 O 167.5 107.4 100.1 76.0 REMARK 620 N 1 2 3 4 DBREF 8C6O A 1 195 UNP Q27709 OBL_OBELO 1 195 DBREF 8C6O B 1 195 UNP Q27709 OBL_OBELO 1 195 SEQADV 8C6O PHE A 64 UNP Q27709 HIS 64 ENGINEERED MUTATION SEQADV 8C6O PHE B 64 UNP Q27709 HIS 64 ENGINEERED MUTATION SEQRES 1 A 195 MET SER SER LYS TYR ALA VAL LYS LEU LYS THR ASP PHE SEQRES 2 A 195 ASP ASN PRO ARG TRP ILE LYS ARG HIS LYS HIS MET PHE SEQRES 3 A 195 ASP PHE LEU ASP ILE ASN GLY ASN GLY LYS ILE THR LEU SEQRES 4 A 195 ASP GLU ILE VAL SER LYS ALA SER ASP ASP ILE CYS ALA SEQRES 5 A 195 LYS LEU GLU ALA THR PRO GLU GLN THR LYS ARG PHE GLN SEQRES 6 A 195 VAL CYS VAL GLU ALA PHE PHE ARG GLY CYS GLY MET GLU SEQRES 7 A 195 TYR GLY LYS GLU ILE ALA PHE PRO GLN PHE LEU ASP GLY SEQRES 8 A 195 TRP LYS GLN LEU ALA THR SER GLU LEU LYS LYS TRP ALA SEQRES 9 A 195 ARG ASN GLU PRO THR LEU ILE ARG GLU TRP GLY ASP ALA SEQRES 10 A 195 VAL PHE ASP ILE PHE ASP LYS ASP GLY SER GLY THR ILE SEQRES 11 A 195 THR LEU ASP GLU TRP LYS ALA TYR GLY LYS ILE SER GLY SEQRES 12 A 195 ILE SER PRO SER GLN GLU ASP CYS GLU ALA THR PHE ARG SEQRES 13 A 195 HIS CYS ASP LEU ASP ASN SER GLY ASP LEU ASP VAL ASP SEQRES 14 A 195 GLU MET THR ARG GLN HIS LEU GLY PHE TRP TYR THR LEU SEQRES 15 A 195 ASP PRO GLU ALA ASP GLY LEU TYR GLY ASN GLY VAL PRO SEQRES 1 B 195 MET SER SER LYS TYR ALA VAL LYS LEU LYS THR ASP PHE SEQRES 2 B 195 ASP ASN PRO ARG TRP ILE LYS ARG HIS LYS HIS MET PHE SEQRES 3 B 195 ASP PHE LEU ASP ILE ASN GLY ASN GLY LYS ILE THR LEU SEQRES 4 B 195 ASP GLU ILE VAL SER LYS ALA SER ASP ASP ILE CYS ALA SEQRES 5 B 195 LYS LEU GLU ALA THR PRO GLU GLN THR LYS ARG PHE GLN SEQRES 6 B 195 VAL CYS VAL GLU ALA PHE PHE ARG GLY CYS GLY MET GLU SEQRES 7 B 195 TYR GLY LYS GLU ILE ALA PHE PRO GLN PHE LEU ASP GLY SEQRES 8 B 195 TRP LYS GLN LEU ALA THR SER GLU LEU LYS LYS TRP ALA SEQRES 9 B 195 ARG ASN GLU PRO THR LEU ILE ARG GLU TRP GLY ASP ALA SEQRES 10 B 195 VAL PHE ASP ILE PHE ASP LYS ASP GLY SER GLY THR ILE SEQRES 11 B 195 THR LEU ASP GLU TRP LYS ALA TYR GLY LYS ILE SER GLY SEQRES 12 B 195 ILE SER PRO SER GLN GLU ASP CYS GLU ALA THR PHE ARG SEQRES 13 B 195 HIS CYS ASP LEU ASP ASN SER GLY ASP LEU ASP VAL ASP SEQRES 14 B 195 GLU MET THR ARG GLN HIS LEU GLY PHE TRP TYR THR LEU SEQRES 15 B 195 ASP PRO GLU ALA ASP GLY LEU TYR GLY ASN GLY VAL PRO HET CZH A1101 55 HET NA A1102 1 HET CZH B1101 55 HET NA B1102 1 HETNAM CZH C2-HYDROPEROXY-COELENTERAZINE HETNAM NA SODIUM ION HETSYN CZH 8-BENZYL-2-HYDROPEROXY-2-(4-HYDROXY-BENZYL)-6-(4- HETSYN 2 CZH HYDROXY-PHENYL)-2H-IMIDAZO[1,2-A]PYRAZIN-3-ONE FORMUL 3 CZH 2(C26 H21 N3 O5) FORMUL 4 NA 2(NA 1+) FORMUL 7 HOH *262(H2 O) HELIX 1 AA1 ASN A 15 ASP A 30 1 16 HELIX 2 AA2 LEU A 39 SER A 47 1 9 HELIX 3 AA3 ASP A 49 GLU A 55 1 7 HELIX 4 AA4 THR A 57 GLY A 74 1 18 HELIX 5 AA5 PHE A 85 ARG A 105 1 21 HELIX 6 AA6 THR A 109 ASP A 123 1 15 HELIX 7 AA7 THR A 131 SER A 142 1 12 HELIX 8 AA8 SER A 147 CYS A 158 1 12 HELIX 9 AA9 VAL A 168 TYR A 180 1 13 HELIX 10 AB1 ASP A 183 ASP A 187 5 5 HELIX 11 AB2 ASN B 15 ASP B 30 1 16 HELIX 12 AB3 THR B 38 ASP B 48 1 11 HELIX 13 AB4 ASP B 49 LEU B 54 1 6 HELIX 14 AB5 THR B 57 GLY B 74 1 18 HELIX 15 AB6 PHE B 85 ARG B 105 1 21 HELIX 16 AB7 THR B 109 PHE B 122 1 14 HELIX 17 AB8 THR B 131 GLY B 143 1 13 HELIX 18 AB9 SER B 147 CYS B 158 1 12 HELIX 19 AC1 VAL B 168 TYR B 180 1 13 HELIX 20 AC2 ASP B 183 ASP B 187 5 5 SHEET 1 AA1 2 ALA A 6 LYS A 10 0 SHEET 2 AA1 2 LYS B 4 LYS B 8 -1 O TYR B 5 N LEU A 9 SHEET 1 AA2 2 LYS A 36 THR A 38 0 SHEET 2 AA2 2 GLU A 82 ALA A 84 -1 O ILE A 83 N ILE A 37 SHEET 1 AA3 2 THR A 129 ILE A 130 0 SHEET 2 AA3 2 LEU A 166 ASP A 167 -1 O LEU A 166 N ILE A 130 SHEET 1 AA4 2 LYS B 36 ILE B 37 0 SHEET 2 AA4 2 ILE B 83 ALA B 84 -1 O ILE B 83 N ILE B 37 SHEET 1 AA5 2 THR B 129 ILE B 130 0 SHEET 2 AA5 2 LEU B 166 ASP B 167 -1 O LEU B 166 N ILE B 130 LINK OD1 ASP A 30 NA NA A1102 1555 1555 2.26 LINK OD1 ASN A 32 NA NA A1102 1555 1555 2.32 LINK OD1 ASN A 34 NA NA A1102 1555 1555 2.35 LINK O LYS A 36 NA NA A1102 1555 1555 2.05 LINK NA NA A1102 O HOH A1226 1555 1555 2.35 LINK NA NA A1102 O HOH A1251 1555 1555 2.59 LINK OD1 ASP B 30 NA NA B1102 1555 1555 2.33 LINK OD1 ASN B 32 NA NA B1102 1555 1555 2.29 LINK OD1 ASN B 34 NA NA B1102 1555 1555 2.15 LINK O LYS B 36 NA NA B1102 1555 1555 2.18 LINK NA NA B1102 O HOH B1278 1555 1555 2.79 CRYST1 77.510 77.510 180.220 90.00 90.00 120.00 P 61 12 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 0.012902 0.007449 0.000000 0.00000 SCALE2 0.000000 0.014897 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005549 0.00000