HEADER LUMINESCENT PROTEIN 19-JUN-01 1JF2 TITLE CRYSTAL STRUCTURE OF W92F OBELIN MUTANT FROM OBELIA LONGISSIMA AT 1.72 TITLE 2 ANGSTROM RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: OBELIN; COMPND 3 CHAIN: A; COMPND 4 ENGINEERED: YES; COMPND 5 MUTATION: 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; SOURCE 6 EXPRESSION_SYSTEM_STRAIN: BL21-GOLD; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: POL-92F KEYWDS BIOLUMINESCENCE, CALCIUM-REGULATED PHOTOPROTEIN, OBELIN, OBELIA, KEYWDS 2 HYDROID, LUMINESCENT PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR Z.-J.LIU,E.S.VYSOTSKI,L.DENG,S.V.MARKOVA,J.LEE,J.P.ROSE,B.-C.WANG REVDAT 7 16-AUG-23 1JF2 1 REMARK REVDAT 6 27-OCT-21 1JF2 1 REMARK SEQADV REVDAT 5 19-FEB-14 1JF2 1 JRNL REMARK VERSN REVDAT 4 24-FEB-09 1JF2 1 VERSN REVDAT 3 31-MAY-05 1JF2 1 JRNL REVDAT 2 01-AUG-01 1JF2 1 JRNL REVDAT 1 11-JUL-01 1JF2 0 JRNL AUTH E.S.VYSOTSKI,Z.J.LIU,S.V.MARKOVA,J.R.BLINKS,L.DENG, JRNL AUTH 2 L.A.FRANK,M.HERKO,N.P.MALIKOVA,J.P.ROSE,B.C.WANG,J.LEE JRNL TITL VIOLET BIOLUMINESCENCE AND FAST KINETICS FROM W92F OBELIN: JRNL TITL 2 STRUCTURE-BASED PROPOSALS FOR THE BIOLUMINESCENCE TRIGGERING JRNL TITL 3 AND THE IDENTIFICATION OF THE EMITTING SPECIES. JRNL REF BIOCHEMISTRY V. 42 6013 2003 JRNL REFN ISSN 0006-2960 JRNL PMID 12755603 JRNL DOI 10.1021/BI027258H REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH Z.J.LIU,E.S.VYSOTSKI,C.J.CHEN,J.P.ROSE,J.LEE,B.C.WANG REMARK 1 TITL STRUCTURE OF THE CA2+-REGULATED PHOTOPROTEIN OBELIN AT 1.7 A REMARK 1 TITL 2 RESOLUTION DETERMINED DIRECTLY FROM ITS SULFUR SUBSTRUCTURE. REMARK 1 REF PROTEIN SCI. V. 9 2085 2000 REMARK 1 REFN ISSN 0961-8368 REMARK 1 PMID 11152120 REMARK 1 DOI 10.1110/PS.9.11.2085 REMARK 1 REFERENCE 2 REMARK 1 AUTH E.S.VYSOTSKI,Z.J.LIU,J.ROSE,B.C.WANG,J.LEE REMARK 1 TITL PREPARATION AND PRELIMINARY STUDY OF CRYSTALS OF THE REMARK 1 TITL 2 RECOMBINANT CALCIUM-REGULATED PHOTOPROTEIN OBELIN FROM THE REMARK 1 TITL 3 BIOLUMINESCENT HYDROID OBELIA LONGISSIMA. REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 55 1965 1999 REMARK 1 REFN ISSN 0907-4449 REMARK 1 PMID 10531510 REMARK 1 DOI 10.1107/S0907444999011828 REMARK 1 REFERENCE 3 REMARK 1 AUTH E.VYSOTSKI,Z.-J.LIU,L.DENG,J.ROSE,B.-C.WANG,J.LEE REMARK 1 TITL OBELIN CRYSTAL STRUCTURE: IMPLICATIONS FOR THE REMARK 1 TITL 2 BIOLUMINESCENCE MECHANISM REMARK 1 REF BIOLUMINESCENCE AND 2001 REMARK 1 REF 2 CHEMILUMINESCENCE 2000 REMARK 1 REFN REMARK 2 REMARK 2 RESOLUTION. 1.72 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS REMARK 3 AUTHORS : BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE- REMARK 3 : KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU, REMARK 3 : READ,RICE,SIMONSON,WARREN REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.72 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 26.28 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 259784.610 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.5 REMARK 3 NUMBER OF REFLECTIONS : 21633 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 SET) : 0.232 REMARK 3 FREE R VALUE : 0.274 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.900 REMARK 3 FREE R VALUE TEST SET COUNT : 1711 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.72 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.83 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 84.80 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 2914 REMARK 3 BIN R VALUE (WORKING SET) : 0.2940 REMARK 3 BIN FREE R VALUE : 0.3590 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 8.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 255 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.022 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1521 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 34 REMARK 3 SOLVENT ATOMS : 128 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 24.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.20 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 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.11 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : 0.28 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.16 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 19.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.690 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.270 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.920 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 1.890 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.640 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.41 REMARK 3 BSOL : 49.47 REMARK 3 REMARK 3 NCS MODEL : NULL REMARK 3 REMARK 3 NCS RESTRAINTS. RMS SIGMA/WEIGHT REMARK 3 GROUP 1 POSITIONAL (A) : NULL ; NULL REMARK 3 GROUP 1 B-FACTOR (A**2) : NULL ; NULL REMARK 3 REMARK 3 PARAMETER FILE 1 : NULL REMARK 3 TOPOLOGY FILE 1 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1JF2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 21-JUN-01. REMARK 100 THE DEPOSITION ID IS D_1000013695. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-APR-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, CRYSTALCLEAR (MSC/RIGAKU) REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21633 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 93.5 REMARK 200 DATA REDUNDANCY : 12.30 REMARK 200 R MERGE (I) : 0.07600 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 18.0800 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 87.7 REMARK 200 DATA REDUNDANCY IN SHELL : 10.20 REMARK 200 R MERGE FOR SHELL (I) : 0.35000 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: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1EL4 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.04 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, POTASSIUM PHOSPHATE, REMARK 280 HEXAMINECOBALTIC CHLORIDE, PH 6.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-Z+1/2 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 72.24250 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 26.72450 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 26.72450 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 36.12125 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 26.72450 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 26.72450 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 108.36375 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 26.72450 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 26.72450 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 36.12125 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 26.72450 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 26.72450 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 108.36375 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 72.24250 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 1 REMARK 465 SER A 2 REMARK 465 SER A 3 REMARK 465 LYS A 4 REMARK 465 TYR A 5 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 ASP A 12 49.75 -143.53 REMARK 500 ASP A 49 -69.98 -103.91 REMARK 500 LYS A 124 -75.75 -100.40 REMARK 500 SER A 145 72.28 -152.08 REMARK 500 REMARK 500 REMARK: NULL REMARK 615 REMARK 615 ZERO OCCUPANCY ATOM REMARK 615 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 615 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 615 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 615 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 615 M RES C SSEQI REMARK 615 HOH A 325 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CZH A 196 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1EL4 RELATED DB: PDB REMARK 900 1EL4 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN OBELIN. REMARK 900 RELATED ID: 1EJ3 RELATED DB: PDB REMARK 900 1EJ3 CONTAINS CALCIUM-REGULATED PHOTOPROTEIN AEQUORIN. DBREF 1JF2 A 1 195 UNP Q27709 OBL_OBELO 1 195 SEQADV 1JF2 PHE A 92 UNP Q27709 TRP 92 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 HIS 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 PHE 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 HET CZH A 196 34 HETNAM CZH C2-HYDROPEROXY-COELENTERAZINE 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 2 CZH C26 H21 N3 O5 FORMUL 3 HOH *128(H2 O) HELIX 1 1 ASN A 15 ASP A 30 1 16 HELIX 2 2 THR A 38 ASP A 49 1 12 HELIX 3 3 ASP A 49 LEU A 54 1 6 HELIX 4 4 THR A 57 GLY A 74 1 18 HELIX 5 5 PHE A 85 ARG A 105 1 21 HELIX 6 6 THR A 109 ASP A 123 1 15 HELIX 7 7 THR A 131 GLY A 143 1 13 HELIX 8 8 SER A 147 CYS A 158 1 12 HELIX 9 9 ASP A 167 TYR A 180 1 14 SHEET 1 A 2 LYS A 36 ILE A 37 0 SHEET 2 A 2 ILE A 83 ALA A 84 -1 N ILE A 83 O ILE A 37 SITE 1 AC1 16 HIS A 22 MET A 25 ILE A 42 ILE A 50 SITE 2 AC1 16 PHE A 88 PHE A 92 ILE A 111 TRP A 114 SITE 3 AC1 16 GLY A 115 TYR A 138 ILE A 144 MET A 171 SITE 4 AC1 16 HIS A 175 TRP A 179 TYR A 190 HOH A 232 CRYST1 53.449 53.449 144.485 90.00 90.00 90.00 P 41 21 2 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 0.018709 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018709 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006921 0.00000