PDB Short entry for 1MCV HEADER HYDROLASE 06-AUG-02 1MCV TITLE CRYSTAL STRUCTURE ANALYSIS OF A HYBRID SQUASH INHIBITOR IN TITLE 2 COMPLEX WITH PORCINE PANCREATIC ELASTASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: ELASTASE 1; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.36; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: HEI-TOE I; COMPND 7 CHAIN: I; COMPND 8 SYNONYM: HYBRID SQUASH INHIBITOR HEI-TOE 1; COMPND 9 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 MOL_ID: 2; SOURCE 6 SYNTHETIC: YES; SOURCE 7 OTHER_DETAILS: THE PEPTIDE WAS CHEMICALLY SYNTHESIZED SOURCE 8 USING SOLID PHASE PEPTIDE SYNTHESIS. IT WAS CONSTRUCTED SOURCE 9 USING THE TRYPSIN BINDING LOOP OF SQUASH INHIBITOR EETI II, SOURCE 10 SUBSTITUTED BY THE SEQUENCE OF A PEPTIDE THAT WAS DERIVED SOURCE 11 FROM THE THIRD DOMAIN OF THE TURKEY OVOMUCOID INHIBITOR. KEYWDS ELASTASE-INHIBITOR COMPLEX, HYBRID SQUASH INHIBITOR, KEYWDS 2 HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR J.AY,K.HILPERT,N.KRAUSS,J.SCHNEIDER-MERGENER,W.HOEHNE REVDAT 2 24-FEB-09 1MCV 1 VERSN REVDAT 1 04-FEB-03 1MCV 0 JRNL AUTH J.AY,K.HILPERT,N.KRAUSS,J.SCHNEIDER-MERGENER, JRNL AUTH 2 W.HOHNE JRNL TITL STRUCTURE OF A HYBRID SQUASH INHIBITOR IN COMPLEX JRNL TITL 2 WITH PORCINE PANCREATIC ELASTASE AT 1.8 A JRNL TITL 3 RESOLUTION. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 59 247 2003 JRNL REFN ISSN 0907-4449 JRNL PMID 12554935 JRNL DOI 10.1107/S0907444902020887 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.WURTELE,M.HAHN,K.HILPERT,W.HOHNE REMARK 1 TITL ATOMIC RESOLUTION STRUCTURE OF NATIVE PORCINE REMARK 1 TITL 2 PANCREATIC ELASTASE AT 1.1 A REMARK 1 REF ACTA CRYSTALLOGR.,SECT.D V. 56 520 2000 REMARK 1 REFN ISSN 0907-4449 REMARK 1 DOI 10.1107/S0907444900000299 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.BODE,A.Z.WEI,R.HUBER,E.MEYER,J.TRAVIS,S.NEUMANN REMARK 1 TITL X-RAY CRYSTAL STRUCTURE OF THE COMPLEX OF HUMAN REMARK 1 TITL 2 LEUKOCYTE ELASTASE (PMN ELASTASE) AND THE THIRD REMARK 1 TITL 3 DOMAIN OF THE TURKEY OVOMUCOID INHIBITOR REMARK 1 REF EMBO J. V. 5 2453 1986 REMARK 1 REFN ISSN 0261-4189 REMARK 1 REFERENCE 3 REMARK 1 AUTH W.BODE,H.J.GREYLING,R.HUBER,J.OTLEWSKI,T.WILUSZ REMARK 1 TITL THE REFINED 2.0 ANGSTROMS X-RAY CRYSTAL STRUCTURE REMARK 1 TITL 2 OF THE COMPLEX FORMED BETWEEN BOVINE BETA-TRYPSIN REMARK 1 TITL 3 AND CMTI-I, A TRYPSIN INHIBITOR FROM SQUASH SEEDS REMARK 1 TITL 4 (CUCURBITA MAXIMA). TOPOLOGICAL SIMILARITY OF THE REMARK 1 TITL 5 SQUASH SEED INHIBITORS WITH THE CARBOXYPEPTIDASE A REMARK 1 TITL 6 INHIBITOR FROM POTATOES REMARK 1 REF FEBS LETT. V. 242 285 1989 REMARK 1 REFN ISSN 0014-5793 REMARK 1 DOI 10.1016/0014-5793(89)80486-7 REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 0.9 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 21938 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) : 0.182 REMARK 3 FREE R VALUE : 0.221 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1103 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : NULL REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : NULL REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.86 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 99.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.2100 REMARK 3 BIN FREE R VALUE : 0.2470 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 100 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2098 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 6 REMARK 3 SOLVENT ATOMS : 353 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 13.50 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 15.30 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 3.60000 REMARK 3 B22 (A**2) : -3.10000 REMARK 3 B33 (A**2) : -0.50000 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 COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.19 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) : 0.24 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.11 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.26 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.56 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.68 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.584 ; NULL REMARK 3 MAIN-CHAIN ANGLE (A**2) : 0.979 ; NULL REMARK 3 SIDE-CHAIN BOND (A**2) : 0.867 ; NULL REMARK 3 SIDE-CHAIN ANGLE (A**2) : 1.322 ; NULL REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : BULK SOLVENT REMARK 3 KSOL : 0.32 REMARK 3 BSOL : 40.20 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 1MCV COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 23-AUG-02. REMARK 100 THE RCSB ID CODE IS RCSB016820. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-APR-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.0 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 : X11 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9073 REMARK 200 MONOCHROMATOR : TRIANGULAR MONOCHROMATOR, REMARK 200 BENT MIRROR REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 21938 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 14.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.3 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.03700 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 21.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.86 REMARK 200 COMPLETENESS FOR SHELL (%) : 87.8 REMARK 200 DATA REDUNDANCY IN SHELL : 3.40 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.11600 REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.500 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: PDB ENTRY 1QNJ REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.51 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.00 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM CITRATE, AMMONIUM ACETATE, REMARK 280 PH 6.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293.0K 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 28.16500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 36.38000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 28.22000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 36.38000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 28.16500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 28.22000 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: 1940 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11230 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -36.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, I 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 400 REMARK 400 COMPOUND REMARK 400 RESIDUE NUMBERING FOR ELASTASE FOLLOWS THE REMARK 400 NUMBERING OF BOVINE CHYMOTRYPSINOGEN A. 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 37 -156.11 -133.67 REMARK 500 HIS A 71 -56.36 -137.76 REMARK 500 TYR A 171 -104.71 -100.19 REMARK 500 ALA I 17 -129.14 44.91 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 1 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 GLU A 70 OE2 44.6 REMARK 620 3 GLU A 80 OE2 95.3 104.6 REMARK 620 4 HOH A 603 O 103.4 61.5 84.3 REMARK 620 5 GLN A 75 O 164.0 143.1 94.6 90.0 REMARK 620 6 ASN A 72 O 84.6 76.2 178.8 96.9 85.2 REMARK 620 7 ASP A 77 OD1 79.9 122.6 91.6 174.9 87.4 87.2 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 1 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 400 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1QNJ RELATED DB: PDB REMARK 900 ELASTASE WITHOUT INHIBITOR AT ATOMIC RESOLUTION REMARK 900 RELATED ID: 1PPE RELATED DB: PDB REMARK 900 THE FRAGMENT OMTKY3 OF OVOMUCOID INHIBITOR IN COMPLEX WITH REMARK 900 HUMAN LEUKOCYTE ELASTASE (HLE) REMARK 900 RELATED ID: 1PPF RELATED DB: PDB REMARK 900 THE SQUASH INHIBITOR CMTI-1 BOUND TO BOVINE TRYPSIN DBREF 1MCV A 16 245 UNP P00772 ELA1_PIG 27 266 DBREF 1MCV I 1 28 PDB 1MCV 1MCV 1 28 SEQRES 1 A 240 VAL VAL GLY GLY THR GLU ALA GLN ARG ASN SER TRP PRO SEQRES 2 A 240 SER GLN ILE SER LEU GLN TYR ARG SER GLY SER SER TRP SEQRES 3 A 240 ALA HIS THR CYS GLY GLY THR LEU ILE ARG GLN ASN TRP SEQRES 4 A 240 VAL MET THR ALA ALA HIS CYS VAL ASP ARG GLU LEU THR SEQRES 5 A 240 PHE ARG VAL VAL VAL GLY GLU HIS ASN LEU ASN GLN ASN SEQRES 6 A 240 ASP GLY THR GLU GLN TYR VAL GLY VAL GLN LYS ILE VAL SEQRES 7 A 240 VAL HIS PRO TYR TRP ASN THR ASP ASP VAL ALA ALA GLY SEQRES 8 A 240 TYR ASP ILE ALA LEU LEU ARG LEU ALA GLN SER VAL THR SEQRES 9 A 240 LEU ASN SER TYR VAL GLN LEU GLY VAL LEU PRO ARG ALA SEQRES 10 A 240 GLY THR ILE LEU ALA ASN ASN SER PRO CYS TYR ILE THR SEQRES 11 A 240 GLY TRP GLY LEU THR ARG THR ASN GLY GLN LEU ALA GLN SEQRES 12 A 240 THR LEU GLN GLN ALA TYR LEU PRO THR VAL ASP TYR ALA SEQRES 13 A 240 ILE CYS SER SER SER SER TYR TRP GLY SER THR VAL LYS SEQRES 14 A 240 ASN SER MET VAL CYS ALA GLY GLY ASP GLY VAL ARG SER SEQRES 15 A 240 GLY CYS GLN GLY ASP SER GLY GLY PRO LEU HIS CYS LEU SEQRES 16 A 240 VAL ASN GLY GLN TYR ALA VAL HIS GLY VAL THR SER PHE SEQRES 17 A 240 VAL SER ARG LEU GLY CYS ASN VAL THR ARG LYS PRO THR SEQRES 18 A 240 VAL PHE THR ARG VAL SER ALA TYR ILE SER TRP ILE ASN SEQRES 19 A 240 ASN VAL ILE ALA SER ASN SEQRES 1 I 28 PRO CYS THR LEU GLU TYR MET ARG CYS LYS GLN ASP SER SEQRES 2 I 28 ASP CYS LEU ALA GLY CYS VAL CYS GLY PRO ASN GLY PHE SEQRES 3 I 28 CYS GLY HET CA A 1 1 HET SO4 A 400 5 HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION FORMUL 3 CA CA 2+ FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *353(H2 O) HELIX 1 1 ALA A 55 ASP A 60 5 6 HELIX 2 2 ASP A 98 GLY A 100 5 5 HELIX 3 3 ASP A 164 SER A 169 1 6 HELIX 4 4 TRP A 172 VAL A 176 5 5 HELIX 5 5 TYR A 234 SER A 244 1 11 HELIX 6 6 GLN I 11 CYS I 15 5 5 SHEET 1 A 8 THR A 20 GLU A 21 0 SHEET 2 A 8 GLN A 156 TYR A 159 -1 O GLN A 157 N THR A 20 SHEET 3 A 8 CYS A 136 GLY A 140 -1 N ILE A 138 O ALA A 158 SHEET 4 A 8 PRO A 198 VAL A 203 -1 O HIS A 200 N TYR A 137 SHEET 5 A 8 GLN A 206 VAL A 216 -1 O ALA A 208 N CYS A 201 SHEET 6 A 8 THR A 226 ARG A 230 -1 O VAL A 227 N PHE A 215 SHEET 7 A 8 MET A 180 ALA A 183 -1 N VAL A 181 O PHE A 228 SHEET 8 A 8 THR A 162 VAL A 163 -1 N VAL A 163 O CYS A 182 SHEET 1 B 6 THR A 20 GLU A 21 0 SHEET 2 B 6 GLN A 156 TYR A 159 -1 O GLN A 157 N THR A 20 SHEET 3 B 6 CYS A 136 GLY A 140 -1 N ILE A 138 O ALA A 158 SHEET 4 B 6 PRO A 198 VAL A 203 -1 O HIS A 200 N TYR A 137 SHEET 5 B 6 GLN A 206 VAL A 216 -1 O ALA A 208 N CYS A 201 SHEET 6 B 6 CYS I 2 THR I 3 -1 O CYS I 2 N VAL A 216 SHEET 1 C 7 SER A 37 ARG A 48 0 SHEET 2 C 7 TRP A 51 THR A 54 -1 O MET A 53 N THR A 45 SHEET 3 C 7 ALA A 104 LEU A 108 -1 O LEU A 106 N VAL A 52 SHEET 4 C 7 GLN A 81 VAL A 90 -1 N VAL A 89 O LEU A 105 SHEET 5 C 7 PHE A 65 VAL A 68 -1 N VAL A 66 O VAL A 83 SHEET 1 D 2 VAL I 20 CYS I 21 0 SHEET 2 D 2 CYS I 27 GLY I 28 -1 O GLY I 28 N VAL I 20 SSBOND 1 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 2 CYS A 136 CYS A 201 1555 1555 2.03 SSBOND 3 CYS A 168 CYS A 182 1555 1555 2.03 SSBOND 4 CYS A 191 CYS A 220 1555 1555 2.03 SSBOND 5 CYS I 2 CYS I 19 1555 1555 2.03 SSBOND 6 CYS I 9 CYS I 21 1555 1555 2.03 SSBOND 7 CYS I 15 CYS I 27 1555 1555 2.03 LINK CA CA A 1 OE1 GLU A 70 1555 1555 2.31 LINK CA CA A 1 OE2 GLU A 70 1555 1555 3.12 LINK CA CA A 1 OE2 GLU A 80 1555 1555 2.27 LINK CA CA A 1 O HOH A 603 1555 1555 2.50 LINK CA CA A 1 O GLN A 75 1555 1555 2.21 LINK CA CA A 1 O ASN A 72 1555 1555 2.29 LINK CA CA A 1 OD1 ASP A 77 1555 1555 2.35 SITE 1 AC1 6 GLU A 70 ASN A 72 GLN A 75 ASP A 77 SITE 2 AC1 6 GLU A 80 HOH A 603 SITE 1 AC2 6 GLY A 127 ARG A 230 SER A 232 ALA A 233 SITE 2 AC2 6 HOH A 632 HOH A 703 CRYST1 56.330 56.440 72.760 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 0.017753 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017718 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013744 0.00000