HEADER HYDROLASE 14-DEC-06 2O9Q TITLE THE CRYSTAL STRUCTURE OF BOVINE TRYPSIN COMPLEXED WITH A SMALL TITLE 2 INHIBITION PEPTIDE ORB2K COMPND MOL_ID: 1; COMPND 2 MOLECULE: CATIONIC TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: CATIONIC TRYPSIN; COMPND 5 SYNONYM: BETA-TRYPSIN; COMPND 6 EC: 3.4.21.4; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: ORB2K; COMPND 9 CHAIN: C; COMPND 10 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 ORGAN: PANCREAS; SOURCE 6 MOL_ID: 2; SOURCE 7 SYNTHETIC: YES; SOURCE 8 OTHER_DETAILS: THE SMALL PEPTIDE ORB2K WAS SYNTHESIZED BY AC SOURCE 9 SCIENTIFIC (XI AN) INC. (XI AN, CHINA), AND CONFIRMED PURITY HIGHER SOURCE 10 THAN 95% BY HPLC AND MALDI-TOF MASS SPECTROMETRY. KEYWDS TRYPSIN, INHIBITOR, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.LI,C.ZHANG,X.XU,J.WANG,W.GONG,R.LAI REVDAT 4 25-OCT-23 2O9Q 1 REMARK LINK REVDAT 3 18-OCT-17 2O9Q 1 REMARK REVDAT 2 24-FEB-09 2O9Q 1 VERSN REVDAT 1 25-DEC-07 2O9Q 0 JRNL AUTH J.LI,C.ZHANG,X.XU,J.WANG,H.YANG,C.XU,D.MA,Y.WANG,W.GONG, JRNL AUTH 2 R.LAI JRNL TITL FROM PROTEASE INHIBITOR TO ANTIBIOTICS: SINGLE POINT JRNL TITL 2 MUTATION MAKES TREMENDOUS FUNCTIONAL SHIFT JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 1.70 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.2.0005 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) : 16.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 90.2 REMARK 3 NUMBER OF REFLECTIONS : 20743 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) : 0.157 REMARK 3 R VALUE (WORKING SET) : 0.155 REMARK 3 FREE R VALUE : 0.195 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 1080 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) : 1325 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 83.91 REMARK 3 BIN R VALUE (WORKING SET) : 0.2120 REMARK 3 BIN FREE R VALUE SET COUNT : 73 REMARK 3 BIN FREE R VALUE : 0.2840 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1734 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 310 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 18.70 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.83000 REMARK 3 B22 (A**2) : -0.51000 REMARK 3 B33 (A**2) : -0.32000 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): 0.119 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.113 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.064 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 1.884 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.966 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.954 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): 1812 ; 0.009 ; 0.022 REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): 2471 ; 1.121 ; 1.956 REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): 245 ; 6.168 ; 5.000 REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): 60 ;38.173 ;25.667 REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): 293 ;10.808 ;15.000 REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): 2 ;12.513 ;15.000 REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): 273 ; 0.080 ; 0.200 REMARK 3 GENERAL PLANES REFINED ATOMS (A): 1338 ; 0.004 ; 0.020 REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): 862 ; 0.187 ; 0.200 REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): 1247 ; 0.300 ; 0.200 REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): 257 ; 0.112 ; 0.200 REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): 4 ; 0.096 ; 0.200 REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): 38 ; 0.119 ; 0.200 REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): 50 ; 0.106 ; 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): 1208 ; 0.781 ; 2.000 REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): 1904 ; 1.353 ; 3.000 REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): 700 ; 2.006 ; 4.000 REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): 562 ; 2.791 ; 6.000 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 : BABINET MODEL WITH MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.20 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 2O9Q COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 21-DEC-06. REMARK 100 THE DEPOSITION ID IS D_1000040864. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-APR-06 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 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 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 : MAR SCANNER 345 MM PLATE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK, HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20777 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.700 REMARK 200 RESOLUTION RANGE LOW (A) : 16.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.1 REMARK 200 DATA REDUNDANCY : 12.90 REMARK 200 R MERGE (I) : 0.04000 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 21.5000 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) : 1.76 REMARK 200 COMPLETENESS FOR SHELL (%) : 86.1 REMARK 200 DATA REDUNDANCY IN SHELL : 10.60 REMARK 200 R MERGE FOR SHELL (I) : 0.12500 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: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1SFI REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.99 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.02 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.5MCACL2, 0.5M (NH4)2SO4, 0.1M HEPES REMARK 280 -NA, 25% PEG 4000, PH 7.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 289K 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 23.00800 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 34.84200 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.72550 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 34.84200 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 23.00800 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.72550 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 APPLY THE FOLLOWING TO CHAINS: A, C 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 LEU C 1 REMARK 465 LYS C 2 REMARK 465 LYS C 17 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 71 -71.93 -118.84 REMARK 500 SER A 210 -72.17 -123.73 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 CA A 501 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 86.2 REMARK 620 3 VAL A 75 O 148.0 82.6 REMARK 620 4 GLU A 80 OE2 101.9 170.2 93.0 REMARK 620 5 SO4 A1001 O4 79.9 87.8 129.2 88.2 REMARK 620 6 SO4 A1001 O1 135.7 89.8 74.3 80.5 55.8 REMARK 620 7 HOH A1080 O 75.9 100.5 76.8 87.0 153.8 147.7 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1001 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1002 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 1003 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SFI RELATED DB: PDB REMARK 900 HIGH RESOLUTION STRUCTURE OF A POTENT, CYCLIC PROTEASE INHIBITOR REMARK 900 FROM SUNFLOWER SEEDS DBREF 2O9Q A 19 241 UNP P00760 TRY1_BOVIN 21 243 DBREF 2O9Q C 1 17 PDB 2O9Q 2O9Q 1 17 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 C 17 LEU LYS GLY CYS TRP THR LYS SER ILE PRO PRO LYS PRO SEQRES 2 C 17 CYS PHE GLY LYS HET CA A 501 1 HET SO4 A1001 5 HET SO4 A1002 5 HET SO4 A1003 5 HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION FORMUL 3 CA CA 2+ FORMUL 4 SO4 3(O4 S 2-) FORMUL 7 HOH *310(H2 O) HELIX 1 1 ALA A 56 TYR A 60 5 5 HELIX 2 2 SER A 162 TYR A 170 1 9 HELIX 3 3 TYR A 230 ASN A 241 1 12 SHEET 1 A 7 TYR A 23 THR A 24 0 SHEET 2 A 7 LYS A 154 PRO A 159 -1 O CYS A 155 N TYR A 23 SHEET 3 A 7 GLN A 133 GLY A 138 -1 N ILE A 136 O LEU A 156 SHEET 4 A 7 PRO A 198 CYS A 201 -1 O VAL A 200 N LEU A 135 SHEET 5 A 7 LYS A 204 SER A 213 -1 O LYS A 204 N CYS A 201 SHEET 6 A 7 GLY A 222 LYS A 226 -1 O VAL A 223 N TRP A 211 SHEET 7 A 7 MET A 178 ALA A 181 -1 N PHE A 179 O TYR A 224 SHEET 1 B 6 TYR A 23 THR A 24 0 SHEET 2 B 6 LYS A 154 PRO A 159 -1 O CYS A 155 N TYR A 23 SHEET 3 B 6 GLN A 133 GLY A 138 -1 N ILE A 136 O LEU A 156 SHEET 4 B 6 PRO A 198 CYS A 201 -1 O VAL A 200 N LEU A 135 SHEET 5 B 6 LYS A 204 SER A 213 -1 O LYS A 204 N CYS A 201 SHEET 6 B 6 CYS C 4 THR C 6 -1 O TRP C 5 N GLY A 212 SHEET 1 C 7 GLN A 33 ASN A 37 0 SHEET 2 C 7 HIS A 41 ASN A 49 -1 O CYS A 43 N LEU A 36 SHEET 3 C 7 TRP A 52 SER A 55 -1 O VAL A 54 N SER A 46 SHEET 4 C 7 MET A 104 LEU A 108 -1 O ILE A 106 N VAL A 53 SHEET 5 C 7 GLN A 81 VAL A 90 -1 N ILE A 89 O LEU A 105 SHEET 6 C 7 GLN A 65 LEU A 68 -1 N VAL A 66 O ILE A 83 SHEET 7 C 7 GLN A 33 ASN A 37 -1 N ASN A 37 O GLN A 65 SSBOND 1 CYS A 25 CYS A 155 1555 1555 2.04 SSBOND 2 CYS A 43 CYS A 59 1555 1555 2.04 SSBOND 3 CYS A 127 CYS A 228 1555 1555 2.04 SSBOND 4 CYS A 134 CYS A 201 1555 1555 2.05 SSBOND 5 CYS A 166 CYS A 180 1555 1555 2.03 SSBOND 6 CYS A 191 CYS A 215 1555 1555 2.03 SSBOND 7 CYS C 4 CYS C 14 1555 1555 2.04 LINK OE1 GLU A 70 CA CA A 501 1555 1555 2.35 LINK O ASN A 72 CA CA A 501 1555 1555 2.41 LINK O VAL A 75 CA CA A 501 1555 1555 2.30 LINK OE2 GLU A 80 CA CA A 501 1555 1555 2.29 LINK CA CA A 501 O4 SO4 A1001 1555 1555 2.43 LINK CA CA A 501 O1 SO4 A1001 1555 1555 2.63 LINK CA CA A 501 O HOH A1080 1555 1555 2.44 CISPEP 1 ILE C 9 PRO C 10 0 -5.66 SITE 1 AC1 6 GLU A 70 ASN A 72 VAL A 75 GLU A 80 SITE 2 AC1 6 SO4 A1001 HOH A1080 SITE 1 AC2 10 GLU A 70 ASP A 71 ASN A 72 VAL A 75 SITE 2 AC2 10 GLU A 77 GLU A 80 CA A 501 HOH A1077 SITE 3 AC2 10 HOH A1150 HOH A1276 SITE 1 AC3 7 THR A 175 SER A 176 LYS A 220 HOH A1038 SITE 2 AC3 7 HOH A1167 HOH A1225 HOH A1280 SITE 1 AC4 4 PRO A 150 ASP A 151 VAL A 152 LYS A 154 CRYST1 46.016 63.451 69.684 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 0.021732 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015760 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014350 0.00000