HEADER HYDROLASE/HYDROLASE INHIBITOR 29-JUN-09 3I29 TITLE CRYSTAL STRUCTURE OF A BINARY COMPLEX BETWEEN AN MUTANT TRYPSIN TITLE 2 INHIBITOR WITH BOVINE 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 ENGINEERED: YES; COMPND 7 MOL_ID: 2; COMPND 8 MOLECULE: CHYMOTRYPSIN INHIBITOR 3; COMPND 9 CHAIN: B; COMPND 10 ENGINEERED: YES; COMPND 11 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: BOVINE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: PSOPHOCARPUS TETRAGONOLOBUS; SOURCE 10 ORGANISM_COMMON: GOA BEAN; SOURCE 11 ORGANISM_TAXID: 3891; SOURCE 12 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 13 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 14 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 15 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 16 EXPRESSION_SYSTEM_PLASMID: PET28A+ KEYWDS P1 AND P2 MUTANT, TRYPSIN INHIBITOR, BOVINE TRYPSIN, COMPLEX, KEYWDS 2 DIGESTION, HYDROLASE, METAL-BINDING, PROTEASE, SECRETED, SERINE KEYWDS 3 PROTEASE, ZYMOGEN, PROTEASE INHIBITOR, SERINE PROTEASE INHIBITOR, KEYWDS 4 HYDROLASE-HYDROLASE INHIBITOR COMPLEX, DISULFIDE BOND EXPDTA X-RAY DIFFRACTION AUTHOR S.KHAMRUI,S.MAJUMDER,J.DASGUPTA,J.K.DATTAGUPTA,U.SEN REVDAT 3 01-NOV-23 3I29 1 REMARK SEQADV LINK REVDAT 2 08-MAY-13 3I29 1 JRNL VERSN REVDAT 1 16-JUN-10 3I29 0 JRNL AUTH S.MAJUMDER,S.KHAMRUI,J.DASGUPTA,J.K.DATTAGUPTA,U.SEN JRNL TITL ROLE OF REMOTE SCAFFOLDING RESIDUES IN THE INHIBITORY LOOP JRNL TITL 2 PRE-ORGANIZATION, FLEXIBILITY, RIGIDIFICATION AND ENZYME JRNL TITL 3 INHIBITION OF SERINE PROTEASE INHIBITORS JRNL REF BIOCHIM.BIOPHYS.ACTA V.1824 882 2012 JRNL REFN ISSN 0006-3002 JRNL PMID 22709512 JRNL DOI 10.1016/J.BBAPAP.2012.04.009 REMARK 2 REMARK 2 RESOLUTION. 2.40 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.2 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) : 2.40 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 9.99 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1284624.500 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 93.9 REMARK 3 NUMBER OF REFLECTIONS : 11886 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) : 0.219 REMARK 3 FREE R VALUE : 0.287 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 4.900 REMARK 3 FREE R VALUE TEST SET COUNT : 581 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.012 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) : 2.40 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.55 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 93.70 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1853 REMARK 3 BIN R VALUE (WORKING SET) : 0.2960 REMARK 3 BIN FREE R VALUE : 0.3630 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 109 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.035 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3002 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 125 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 30.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -1.70000 REMARK 3 B22 (A**2) : -0.84000 REMARK 3 B33 (A**2) : 2.54000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : -3.32000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.29 REMARK 3 ESD FROM SIGMAA (A) : 0.30 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) : 0.40 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.43 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.890 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) : NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : NULL ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.50 REMARK 3 BSOL : 64.83 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : WATER.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BULK SOLVENT MODEL USED REMARK 4 REMARK 4 3I29 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 02-JUL-09. REMARK 100 THE DEPOSITION ID IS D_1000053872. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 08-AUG-08 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : 8.0 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 : BRUKER AXS MICROSTAR REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 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 : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 12051 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.400 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : 2.870 REMARK 200 R MERGE (I) : 0.10730 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 4.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : NULL REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : NULL 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: NULL REMARK 200 STARTING MODEL: PDB ENTRIES 1AVW (FOR TRYPSIN) AND 1EYL (FOR REMARK 200 INHIBITOR) REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 33.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.84 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 8.0, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 298K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z 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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 61.54900 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 19.86450 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 61.54900 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 19.86450 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: 2390 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 15660 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -17.0 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 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 GLY B -3 REMARK 465 SER B -2 REMARK 465 HIS B -1 REMARK 465 MET B 0 REMARK 465 LYS B 176 REMARK 465 SER B 177 REMARK 465 GLU B 178 REMARK 465 THR B 179 REMARK 465 ALA B 180 REMARK 465 SER B 181 REMARK 465 SER B 182 REMARK 465 HIS B 183 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 -72.19 -132.28 REMARK 500 ASN A 115 -151.11 -127.72 REMARK 500 SER A 146 -87.71 -62.78 REMARK 500 ASP A 189 175.47 178.14 REMARK 500 SER A 195 142.16 -33.32 REMARK 500 SER A 214 -74.45 -114.81 REMARK 500 SER A 244 21.26 -142.65 REMARK 500 ASP B 3 -62.54 -123.17 REMARK 500 LEU B 4 101.33 -52.49 REMARK 500 ASP B 6 -152.75 -72.08 REMARK 500 GLU B 8 14.84 -69.34 REMARK 500 ALA B 26 -7.12 -165.03 REMARK 500 ASN B 38 43.96 -102.89 REMARK 500 CYS B 41 -175.87 -175.21 REMARK 500 ARG B 65 46.18 -95.03 REMARK 500 SER B 84 -90.68 -53.13 REMARK 500 LYS B 118 116.39 -173.69 REMARK 500 SER B 125 -20.28 -39.62 REMARK 500 ASN B 126 17.01 -56.86 REMARK 500 ILE B 127 139.51 161.14 REMARK 500 HIS B 128 109.53 -53.71 REMARK 500 ASP B 138 -76.86 -128.70 REMARK 500 GLU B 139 56.98 -158.60 REMARK 500 ASP B 141 81.89 -175.66 REMARK 500 ASP B 145 43.34 -107.26 REMARK 500 GLU B 165 10.75 -145.24 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 991 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 145.4 79.9 REMARK 620 4 GLU A 80 OE2 96.9 174.1 100.0 REMARK 620 N 1 2 3 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 991 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 2QYI RELATED DB: PDB REMARK 900 RELATED ID: 3I2A RELATED DB: PDB REMARK 900 RELATED ID: 3I2X RELATED DB: PDB DBREF 3I29 A 16 245 UNP P00760 TRY1_BOVIN 24 246 DBREF 3I29 B 1 183 UNP P10822 ICW3_PSOTE 25 207 SEQADV 3I29 GLY B -3 UNP P10822 EXPRESSION TAG SEQADV 3I29 SER B -2 UNP P10822 EXPRESSION TAG SEQADV 3I29 HIS B -1 UNP P10822 EXPRESSION TAG SEQADV 3I29 MET B 0 UNP P10822 EXPRESSION TAG SEQADV 3I29 TYR B 64 UNP P10822 PHE 88 ENGINEERED MUTATION SEQADV 3I29 ARG B 65 UNP P10822 LEU 89 ENGINEERED MUTATION 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 187 GLY SER HIS MET ASP ASP ASP LEU VAL ASP ALA GLU GLY SEQRES 2 B 187 ASN LEU VAL GLU ASN GLY GLY THR TYR TYR LEU LEU PRO SEQRES 3 B 187 HIS ILE TRP ALA HIS GLY GLY GLY ILE GLU THR ALA LYS SEQRES 4 B 187 THR GLY ASN GLU PRO CYS PRO LEU THR VAL VAL ARG SER SEQRES 5 B 187 PRO ASN GLU VAL SER LYS GLY GLU PRO ILE ARG ILE SER SEQRES 6 B 187 SER GLN TYR ARG SER LEU PHE ILE PRO ARG GLY SER LEU SEQRES 7 B 187 VAL ALA LEU GLY PHE ALA ASN PRO PRO SER CYS ALA ALA SEQRES 8 B 187 SER PRO TRP TRP THR VAL VAL ASP SER PRO GLN GLY PRO SEQRES 9 B 187 ALA VAL LYS LEU SER GLN GLN LYS LEU PRO GLU LYS ASP SEQRES 10 B 187 ILE LEU VAL PHE LYS PHE GLU LYS VAL SER HIS SER ASN SEQRES 11 B 187 ILE HIS VAL TYR LYS LEU LEU TYR CYS GLN HIS ASP GLU SEQRES 12 B 187 GLU ASP VAL LYS CYS ASP GLN TYR ILE GLY ILE HIS ARG SEQRES 13 B 187 ASP ARG ASN GLY ASN ARG ARG LEU VAL VAL THR GLU GLU SEQRES 14 B 187 ASN PRO LEU GLU LEU VAL LEU LEU LYS ALA LYS SER GLU SEQRES 15 B 187 THR ALA SER SER HIS HET CA A 991 1 HETNAM CA CALCIUM ION FORMUL 3 CA CA 2+ FORMUL 4 HOH *125(H2 O) HELIX 1 1 ALA A 55 TYR A 59 5 5 HELIX 2 2 SER A 164 TYR A 172 1 9 HELIX 3 3 VAL A 231 ALA A 243 1 13 HELIX 4 4 PRO B 110 LEU B 115 1 6 SHEET 1 A 7 TYR A 20 THR A 21 0 SHEET 2 A 7 LYS A 156 PRO A 161 -1 O CYS A 157 N TYR A 20 SHEET 3 A 7 GLN A 135 GLY A 140 -1 N ILE A 138 O LEU A 158 SHEET 4 A 7 PRO A 198 CYS A 201 -1 O VAL A 200 N LEU A 137 SHEET 5 A 7 LYS A 204 TRP A 215 -1 O LYS A 204 N CYS A 201 SHEET 6 A 7 GLY A 226 LYS A 230 -1 O VAL A 227 N TRP A 215 SHEET 7 A 7 MET A 180 ALA A 183 -1 N PHE A 181 O TYR A 228 SHEET 1 B 7 GLN A 30 ASN A 34 0 SHEET 2 B 7 HIS A 40 ASN A 48 -1 O CYS A 42 N LEU A 33 SHEET 3 B 7 TRP A 51 SER A 54 -1 O VAL A 53 N SER A 45 SHEET 4 B 7 MET A 104 LEU A 108 -1 O MET A 104 N SER A 54 SHEET 5 B 7 GLN A 81 VAL A 90 -1 N SER A 86 O LYS A 107 SHEET 6 B 7 GLN A 64 LEU A 67 -1 N VAL A 65 O ILE A 83 SHEET 7 B 7 GLN A 30 ASN A 34 -1 N ASN A 34 O GLN A 64 SHEET 1 C 6 ALA B 76 PHE B 79 0 SHEET 2 C 6 ILE B 58 SER B 61 -1 N ARG B 59 O GLY B 78 SHEET 3 C 6 THR B 17 LEU B 21 -1 N TYR B 18 O ILE B 58 SHEET 4 C 6 GLU B 169 LYS B 174 -1 O LEU B 173 N TYR B 19 SHEET 5 C 6 TYR B 130 TYR B 134 -1 N TYR B 130 O LEU B 170 SHEET 6 C 6 PHE B 117 LYS B 121 -1 N GLU B 120 O LYS B 131 SHEET 1 D 4 ILE B 31 ALA B 34 0 SHEET 2 D 4 THR B 44 ARG B 47 -1 O VAL B 46 N GLU B 32 SHEET 3 D 4 ARG B 158 THR B 163 -1 O LEU B 160 N VAL B 45 SHEET 4 D 4 TYR B 147 ARG B 152 -1 N GLY B 149 O VAL B 161 SHEET 1 E 2 THR B 92 VAL B 94 0 SHEET 2 E 2 ALA B 101 LYS B 103 -1 O ALA B 101 N VAL B 94 SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.03 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 3 CYS A 128 CYS A 232 1555 1555 2.03 SSBOND 4 CYS A 136 CYS A 201 1555 1555 2.04 SSBOND 5 CYS A 168 CYS A 182 1555 1555 2.03 SSBOND 6 CYS A 191 CYS A 220 1555 1555 2.03 SSBOND 7 CYS B 41 CYS B 85 1555 1555 2.02 SSBOND 8 CYS B 135 CYS B 144 1555 1555 2.04 LINK OE1 GLU A 70 CA CA A 991 1555 1555 2.33 LINK O ASN A 72 CA CA A 991 1555 1555 2.33 LINK O VAL A 75 CA CA A 991 1555 1555 1.97 LINK OE2 GLU A 80 CA CA A 991 1555 1555 2.23 SITE 1 AC1 5 GLU A 70 ASN A 72 VAL A 75 VAL A 76 SITE 2 AC1 5 GLU A 80 CRYST1 123.098 39.729 76.601 90.00 120.00 90.00 C 1 2 1 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 0.008124 0.000000 0.004690 0.00000 SCALE2 0.000000 0.025171 0.000000 0.00000 SCALE3 0.000000 0.000000 0.015074 0.00000