HEADER HYDROLASE/HYDROLASE INHIBITOR 17-MAR-10 3M7Q TITLE CRYSTAL STRUCTURE OF RECOMBINANT KUNITZ TYPE SERINE PROTEASE TITLE 2 INHIBITOR-1 FROM THE CARIBBEAN SEA ANEMONE STICHODACTYLA HELIANTHUS TITLE 3 IN COMPLEX WITH BOVINE PANCREATIC TRYPSIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATIONIC TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: BETA-TRYPSIN, ALPHA-TRYPSIN CHAIN 1, ALPHA-TRYPSIN CHAIN 2; COMPND 5 EC: 3.4.21.4; COMPND 6 MOL_ID: 2; COMPND 7 MOLECULE: KUNITZ-TYPE PROTEINASE INHIBITOR SHPI-1; COMPND 8 CHAIN: B; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE,COW,DOMESTIC CATTLE,DOMESTIC COW; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 OTHER_DETAILS: PANCREAS; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: STICHODACTYLA HELIANTHUS; SOURCE 8 ORGANISM_COMMON: CARRIBEAN SEA ANEMONE; SOURCE 9 ORGANISM_TAXID: 6123; SOURCE 10 EXPRESSION_SYSTEM: PICHIA PASTORIS; SOURCE 11 EXPRESSION_SYSTEM_TAXID: 4922; SOURCE 12 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID KEYWDS TRYPSIN-INHIBITOR COMPLEX, KUNITZ-TYPE SERINE-PROTEASE INHIBITOR, KEYWDS 2 DIGESTION, DISULFIDE BOND, HYDROLASE, METAL-BINDING, PROTEASE, KEYWDS 3 SECRETED, SERINE PROTEASE, ZYMOGEN, NEMATOCYST, PROTEASE INHIBITOR, KEYWDS 4 SERINE PROTEASE INHIBITOR, HYDROLASE-HYDROLASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR R.GARCIA-FERNANDEZ,L.REDECKE,T.PONS,M.PERBANDT,D.GIL,A.TALAVERA, AUTHOR 2 Y.GONZALEZ,M.DE LOS ANGELES CHAVEZ,C.BETZEL REVDAT 4 06-SEP-23 3M7Q 1 REMARK SEQADV REVDAT 3 14-NOV-12 3M7Q 1 JRNL REVDAT 2 03-OCT-12 3M7Q 1 JRNL VERSN REVDAT 1 16-MAR-11 3M7Q 0 JRNL AUTH R.GARCIA-FERNANDEZ,T.PONS,M.PERBANDT,P.A.VALIENTE, JRNL AUTH 2 A.TALAVERA,Y.GONZALEZ-GONZALEZ,D.REHDERS,M.A.CHAVEZ, JRNL AUTH 3 C.BETZEL,L.REDECKE JRNL TITL STRUCTURAL INSIGHTS INTO SERINE PROTEASE INHIBITION BY A JRNL TITL 2 MARINE INVERTEBRATE BPTI KUNITZ-TYPE INHIBITOR. JRNL REF J.STRUCT.BIOL. V. 180 271 2012 JRNL REFN ISSN 1047-8477 JRNL PMID 22975140 JRNL DOI 10.1016/J.JSB.2012.08.009 REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0019 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) : 1.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 98.8 REMARK 3 NUMBER OF REFLECTIONS : 30937 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) : 0.159 REMARK 3 R VALUE (WORKING SET) : 0.158 REMARK 3 FREE R VALUE : 0.188 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1540 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) : 1.70 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.75 REMARK 3 REFLECTION IN BIN (WORKING SET) : 2067 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 97.53 REMARK 3 BIN R VALUE (WORKING SET) : 0.1890 REMARK 3 BIN FREE R VALUE SET COUNT : 109 REMARK 3 BIN FREE R VALUE : 0.2580 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2095 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 526 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.60 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.59 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.11000 REMARK 3 B22 (A**2) : 0.26000 REMARK 3 B33 (A**2) : -0.37000 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): 0.106 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.100 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.060 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.759 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.961 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.949 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 2233 ; 0.007 ; 0.021 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 3043 ; 0.955 ; 1.945 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 305 ; 5.442 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 82 ;35.188 ;25.000 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 356 ;11.188 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 6 ;13.690 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 326 ; 0.069 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1710 ; 0.003 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 1022 ; 0.169 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1563 ; 0.292 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 360 ; 0.091 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 54 ; 0.140 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 98 ; 0.115 ; 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): 1503 ; 1.033 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 2356 ; 1.469 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 844 ; 1.323 ; 2.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 687 ; 1.994 ; 3.000 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 : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : 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 3M7Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-MAR-10. REMARK 100 THE DEPOSITION ID IS D_1000058213. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : 5.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : EMBL/DESY, HAMBURG REMARK 200 BEAMLINE : X13 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5 REMARK 200 MONOCHROMATOR : SI 111 CHANNEL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30937 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 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 (%) : NULL REMARK 200 DATA REDUNDANCY : 5.800 REMARK 200 R MERGE (I) : 0.06500 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 26.5000 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) : 1.73 REMARK 200 COMPLETENESS FOR SHELL (%) : 97.8 REMARK 200 DATA REDUNDANCY IN SHELL : 5.80 REMARK 200 R MERGE FOR SHELL (I) : 0.21700 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 9.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1SHI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 46.32 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.29 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 25% PEG 3350, 0.2M MAGNESIUM CHLORIDE REMARK 280 HEXAHYDRATE, 0.1M BIS-TRIS, PH 5.5, VAPOR DIFFUSION, SITTING REMARK 280 DROP, TEMPERATURE 288.15K 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 29.13950 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 35.46850 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.27550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 35.46850 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 29.13950 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 33.27550 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 1570 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12100 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -13.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, 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 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 53 -70.66 -121.60 REMARK 500 SER A 192 -69.07 -123.43 REMARK 500 ASN B 39 -167.09 -106.56 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PO4 A 224 DBREF 3M7Q A 1 223 UNP P00760 TRY1_BOVIN 24 246 DBREF 3M7Q B 1 55 UNP P31713 ISH1_STOHE 1 55 SEQADV 3M7Q GLU B -3 UNP P31713 EXPRESSION TAG SEQADV 3M7Q ALA B -2 UNP P31713 EXPRESSION TAG SEQADV 3M7Q GLU B -1 UNP P31713 EXPRESSION TAG SEQADV 3M7Q ALA B 0 UNP P31713 EXPRESSION TAG SEQADV 3M7Q LEU B 56 UNP P31713 EXPRESSION TAG SEQADV 3M7Q GLY B 57 UNP P31713 EXPRESSION TAG SEQRES 1 A 223 ILE VAL GLY GLY TYR THR CYS GLY ALA ASN THR VAL PRO SEQRES 2 A 223 TYR GLN VAL SER LEU ASN SER GLY TYR HIS PHE CYS GLY SEQRES 3 A 223 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 A 223 HIS CYS TYR LYS SER GLY ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 223 ASP ASN ILE ASN VAL VAL GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 223 SER ALA SER LYS SER ILE VAL HIS PRO SER TYR ASN SER SEQRES 7 A 223 ASN THR LEU ASN ASN ASP ILE MET LEU ILE LYS LEU LYS SEQRES 8 A 223 SER ALA ALA SER LEU ASN SER ARG VAL ALA SER ILE SER SEQRES 9 A 223 LEU PRO THR SER CYS ALA SER ALA GLY THR GLN CYS LEU SEQRES 10 A 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY THR SER SEQRES 11 A 223 TYR PRO ASP VAL LEU LYS CYS LEU LYS ALA PRO ILE LEU SEQRES 12 A 223 SER ASP SER SER CYS LYS SER ALA TYR PRO GLY GLN ILE SEQRES 13 A 223 THR SER ASN MET PHE CYS ALA GLY TYR LEU GLU GLY GLY SEQRES 14 A 223 LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL SEQRES 15 A 223 CYS SER GLY LYS LEU GLN GLY ILE VAL SER TRP GLY SER SEQRES 16 A 223 GLY CYS ALA GLN LYS ASN LYS PRO GLY VAL TYR THR LYS SEQRES 17 A 223 VAL CYS ASN TYR VAL SER TRP ILE LYS GLN THR ILE ALA SEQRES 18 A 223 SER ASN SEQRES 1 B 61 GLU ALA GLU ALA SER ILE CYS SER GLU PRO LYS LYS VAL SEQRES 2 B 61 GLY ARG CYS LYS GLY TYR PHE PRO ARG PHE TYR PHE ASP SEQRES 3 B 61 SER GLU THR GLY LYS CYS THR PRO PHE ILE TYR GLY GLY SEQRES 4 B 61 CYS GLY GLY ASN GLY ASN ASN PHE GLU THR LEU HIS GLN SEQRES 5 B 61 CYS ARG ALA ILE CYS ARG ALA LEU GLY HET PO4 A 224 5 HETNAM PO4 PHOSPHATE ION FORMUL 3 PO4 O4 P 3- FORMUL 4 HOH *526(H2 O) HELIX 1 1 ALA A 38 TYR A 42 5 5 HELIX 2 2 SER A 144 TYR A 152 1 9 HELIX 3 3 TYR A 212 SER A 222 1 11 HELIX 4 4 ALA B 0 GLU B 5 5 6 HELIX 5 5 THR B 45 CYS B 53 1 9 SHEET 1 A 7 TYR A 5 THR A 6 0 SHEET 2 A 7 LYS A 136 PRO A 141 -1 O CYS A 137 N TYR A 5 SHEET 3 A 7 GLN A 115 GLY A 120 -1 N ILE A 118 O LEU A 138 SHEET 4 A 7 PRO A 180 CYS A 183 -1 O VAL A 182 N LEU A 117 SHEET 5 A 7 LYS A 186 TRP A 193 -1 O LYS A 186 N CYS A 183 SHEET 6 A 7 GLY A 204 LYS A 208 -1 O VAL A 205 N TRP A 193 SHEET 7 A 7 MET A 160 ALA A 163 -1 N PHE A 161 O TYR A 206 SHEET 1 B 7 GLN A 15 ASN A 19 0 SHEET 2 B 7 HIS A 23 ASN A 31 -1 O CYS A 25 N LEU A 18 SHEET 3 B 7 TRP A 34 SER A 37 -1 O VAL A 36 N SER A 28 SHEET 4 B 7 MET A 86 LEU A 90 -1 O ILE A 88 N VAL A 35 SHEET 5 B 7 GLN A 63 VAL A 72 -1 N ILE A 71 O LEU A 87 SHEET 6 B 7 GLN A 47 LEU A 50 -1 N VAL A 48 O ILE A 65 SHEET 7 B 7 GLN A 15 ASN A 19 -1 N SER A 17 O ARG A 49 SHEET 1 C 2 PHE B 16 ASP B 22 0 SHEET 2 C 2 LYS B 27 TYR B 33 -1 O PHE B 31 N ARG B 18 SSBOND 1 CYS A 7 CYS A 137 1555 1555 2.04 SSBOND 2 CYS A 25 CYS A 41 1555 1555 2.04 SSBOND 3 CYS A 109 CYS A 210 1555 1555 2.03 SSBOND 4 CYS A 116 CYS A 183 1555 1555 2.04 SSBOND 5 CYS A 148 CYS A 162 1555 1555 2.05 SSBOND 6 CYS A 173 CYS A 197 1555 1555 2.04 SSBOND 7 CYS B 3 CYS B 53 1555 1555 2.04 SSBOND 8 CYS B 12 CYS B 36 1555 1555 2.04 SSBOND 9 CYS B 28 CYS B 49 1555 1555 2.04 SITE 1 AC1 11 ASN A 82 THR A 124 LYS A 136 HOH A 277 SITE 2 AC1 11 HOH A 289 HOH A 355 HOH A 452 HOH A 490 SITE 3 AC1 11 HOH A 493 HOH A 513 HOH A 563 CRYST1 58.279 66.551 70.937 90.00 90.00 90.00 P 21 21 21 4 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 0.017159 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015026 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014097 0.00000