HEADER HYDROLASE/HYDROLASE INHIBITOR 10-DEC-98 2STA TITLE ANIONIC SALMON TRYPSIN IN COMPLEX WITH SQUASH SEED INHIBITOR TITLE 2 (CUCURBITA MAXIMA TRYPSIN INHIBITOR I) COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (TRYPSIN); COMPND 3 CHAIN: E; COMPND 4 EC: 3.4.21.4; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: PROTEIN (TRYPSIN INHIBITOR); COMPND 7 CHAIN: I SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SALMO SALAR; SOURCE 3 ORGANISM_COMMON: ATLANTIC SALMON; SOURCE 4 ORGANISM_TAXID: 8030; SOURCE 5 TISSUE: PANCREATIC; SOURCE 6 MOL_ID: 2; SOURCE 7 ORGANISM_SCIENTIFIC: CUCURBITA MAXIMA; SOURCE 8 ORGANISM_COMMON: WINTER SQUASH; SOURCE 9 ORGANISM_TAXID: 3661; SOURCE 10 ORGAN: SQUASH SEEDS KEYWDS SERINE PROTEINASE, TRYPSIN INHIBITOR, HYDROLASE-HYDROLASE INHIBITOR KEYWDS 2 COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR R.HELLAND,G.I.BERGLUND,J.OTLEWSKI,W.APOSTOLUK,O.A.ANDERSEN, AUTHOR 2 N.P.WILLASSEN,A.O.SMALAS REVDAT 4 13-NOV-24 2STA 1 REMARK REVDAT 3 30-AUG-23 2STA 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 2STA 1 VERSN REVDAT 1 19-JAN-00 2STA 0 JRNL AUTH R.HELLAND,G.I.BERGLUND,J.OTLEWSKI,W.APOSTOLUK,O.A.ANDERSEN, JRNL AUTH 2 N.P.WILLASSEN,A.O.SMALAS JRNL TITL HIGH-RESOLUTION STRUCTURES OF THREE NEW JRNL TITL 2 TRYPSIN-SQUASH-INHIBITOR COMPLEXES: A DETAILED COMPARISON JRNL TITL 3 WITH OTHER TRYPSINS AND THEIR COMPLEXES. JRNL REF ACTA CRYSTALLOGR.,SECT.D V. 55 139 1999 JRNL REFN ISSN 0907-4449 JRNL PMID 10089404 JRNL DOI 10.1107/S090744499801052X REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.8 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 6.00 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) (%) : 98.9 REMARK 3 NUMBER OF REFLECTIONS : 29878 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) : 0.193 REMARK 3 FREE R VALUE : 0.233 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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) : NULL REMARK 3 BIN RESOLUTION RANGE LOW (A) : NULL REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : NULL REMARK 3 BIN FREE R VALUE : NULL REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : NULL 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 : 1888 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 139 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 19.90 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.10 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) : 0.10 REMARK 3 ESD FROM SIGMAA (A) : 0.20 REMARK 3 LOW RESOLUTION CUTOFF (A) : 6.00 REMARK 3 REMARK 3 CROSS-VALIDATED ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM C-V LUZZATI PLOT (A) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 2.625 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : NULL 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 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 2STA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-DEC-98. REMARK 100 THE DEPOSITION ID IS D_1000000250. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 6.0 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM1A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.873 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO, CCP4 REMARK 200 DATA SCALING SOFTWARE : CCP4 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30958 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.800 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.9 REMARK 200 DATA REDUNDANCY : 4.200 REMARK 200 R MERGE (I) : 0.08500 REMARK 200 R SYM (I) : 0.08700 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL 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 <I/SIGMA(I)> 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: X-PLOR REMARK 200 STARTING MODEL: 2TBS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 59.09 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.0 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 31.15000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 41.15000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 31.85000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 41.15000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 31.15000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 31.85000 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: 1520 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 10350 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -20.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: E, 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 475 REMARK 475 ZERO OCCUPANCY RESIDUES REMARK 475 THE FOLLOWING RESIDUES WERE MODELED WITH ZERO OCCUPANCY. REMARK 475 THE LOCATION AND PROPERTIES OF THESE RESIDUES MAY NOT REMARK 475 BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 475 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE) REMARK 475 M RES C SSEQI REMARK 475 ALA E 243 REMARK 475 SER E 244 REMARK 475 TYR E 245 REMARK 475 GLU I 524 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS E 23 NZ REMARK 480 SER E 37 OG REMARK 480 ARG E 62 CG CD NE CZ NH1 NH2 REMARK 480 LYS E 74 CE NZ REMARK 480 SER E 84 OG REMARK 480 TYR E 97 CB CG CD1 CD2 CE1 CE2 CZ REMARK 480 TYR E 97 OH REMARK 480 LYS E 107 NZ REMARK 480 LYS E 110 CE NZ REMARK 480 THR E 116 OG1 CG2 REMARK 480 SER E 148 OG REMARK 480 SER E 166 OG REMARK 480 ASN E 178 CG OD1 ND2 REMARK 480 LYS E 188 NZ REMARK 480 ARG I 501 CB CG CD NE CZ NH1 NH2 REMARK 480 GLU I 509 CG CD OE2 REMARK 480 LYS I 511 N C O CB CG CD CE REMARK 480 LYS I 511 NZ REMARK 480 LYS I 512 CB CG CD CE NZ REMARK 480 HIS I 525 CB CG ND1 CD2 CE1 NE2 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 ARG I 505 C ARG I 505 O 0.120 REMARK 500 HIS I 525 NE2 HIS I 525 CD2 -0.067 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND ANGLES REMARK 500 REMARK 500 THE STEREOCHEMICAL PARAMETERS OF THE FOLLOWING RESIDUES REMARK 500 HAVE VALUES WHICH DEVIATE FROM EXPECTED VALUES BY MORE REMARK 500 THAN 6*RMSD (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 500 IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 STANDARD TABLE: REMARK 500 FORMAT: (10X,I3,1X,A3,1X,A1,I4,A1,3(1X,A4,2X),12X,F5.1) REMARK 500 REMARK 500 EXPECTED VALUES PROTEIN: ENGH AND HUBER, 1999 REMARK 500 EXPECTED VALUES NUCLEIC ACID: CLOWNEY ET AL 1996 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 TRP E 51 CD1 - CG - CD2 ANGL. DEV. = 6.4 DEGREES REMARK 500 TRP E 51 CE2 - CD2 - CG ANGL. DEV. = -5.8 DEGREES REMARK 500 TRP E 141 CD1 - CG - CD2 ANGL. DEV. = 5.8 DEGREES REMARK 500 TRP E 141 CE2 - CD2 - CG ANGL. DEV. = -5.8 DEGREES REMARK 500 TRP E 215 CD1 - CG - CD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 TRP E 215 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 TRP E 237 CD1 - CG - CD2 ANGL. DEV. = 5.6 DEGREES REMARK 500 TRP E 237 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 ARG I 501 CA - C - N ANGL. DEV. = 16.0 DEGREES REMARK 500 REMARK 500 REMARK: NULL 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 GLN E 27 64.85 -117.13 REMARK 500 ASN E 115 -158.96 -158.45 REMARK 500 SER E 214 -70.90 -131.60 REMARK 500 ARG I 505 43.24 -84.22 REMARK 500 LYS I 511 -55.92 -126.08 REMARK 500 ALA I 518 -124.33 42.66 REMARK 500 HIS I 525 5.71 -61.07 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 E 700 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU E 70 OE1 REMARK 620 2 ASN E 72 O 91.4 REMARK 620 3 VAL E 75 O 162.3 89.2 REMARK 620 4 GLU E 77 OE1 92.5 83.9 105.1 REMARK 620 5 GLU E 80 OE2 97.6 157.8 88.3 75.5 REMARK 620 6 HOH E 755 O 76.2 111.9 87.2 160.4 90.0 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA E 700 DBREF 2STA E 16 245 UNP P35031 TRY1_SALSA 21 242 DBREF 2STA I 501 529 UNP P01074 ITR1_CUCMA 1 29 SEQADV 2STA PRO E 24 UNP P35031 ALA 29 CONFLICT SEQADV 2STA PRO E 28 UNP P35031 THR 33 CONFLICT SEQRES 1 E 222 ILE VAL GLY GLY TYR GLU CYS LYS PRO TYR SER GLN PRO SEQRES 2 E 222 HIS GLN VAL SER LEU ASN SER GLY TYR HIS PHE CYS GLY SEQRES 3 E 222 GLY SER LEU VAL ASN GLU ASN TRP VAL VAL SER ALA ALA SEQRES 4 E 222 HIS CYS TYR LYS SER ARG VAL GLU VAL ARG LEU GLY GLU SEQRES 5 E 222 HIS ASN ILE LYS VAL THR GLU GLY SER GLU GLN PHE ILE SEQRES 6 E 222 SER SER SER ARG VAL ILE ARG HIS PRO ASN TYR SER SER SEQRES 7 E 222 TYR ASN ILE ASP ASN ASP ILE MET LEU ILE LYS LEU SER SEQRES 8 E 222 LYS PRO ALA THR LEU ASN THR TYR VAL GLN PRO VAL ALA SEQRES 9 E 222 LEU PRO THR SER CYS ALA PRO ALA GLY THR MET CYS THR SEQRES 10 E 222 VAL SER GLY TRP GLY ASN THR MET SER SER THR ALA ASP SEQRES 11 E 222 SER ASN LYS LEU GLN CYS LEU ASN ILE PRO ILE LEU SER SEQRES 12 E 222 TYR SER ASP CYS ASN ASN SER TYR PRO GLY MET ILE THR SEQRES 13 E 222 ASN ALA MET PHE CYS ALA GLY TYR LEU GLU GLY GLY LYS SEQRES 14 E 222 ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL CYS SEQRES 15 E 222 ASN GLY GLU LEU GLN GLY VAL VAL SER TRP GLY TYR GLY SEQRES 16 E 222 CYS ALA GLU PRO GLY ASN PRO GLY VAL TYR ALA LYS VAL SEQRES 17 E 222 CYS ILE PHE ASN ASP TRP LEU THR SER THR MET ALA SER SEQRES 18 E 222 TYR SEQRES 1 I 29 ARG VAL CYS PRO ARG ILE LEU MET GLU CYS LYS LYS ASP SEQRES 2 I 29 SER ASP CYS LEU ALA GLU CYS VAL CYS LEU GLU HIS GLY SEQRES 3 I 29 TYR CYS GLY HET CA E 700 1 HETNAM CA CALCIUM ION FORMUL 3 CA CA 2+ FORMUL 4 HOH *139(H2 O) HELIX 1 1 ALA E 56 CYS E 58 5 3 HELIX 2 2 TYR E 165 SER E 171 1 7 HELIX 3 3 VAL E 231 ALA E 243 5 13 HELIX 4 4 ASP I 513 ASP I 515 5 3 SHEET 1 A 7 MET E 180 ALA E 183 0 SHEET 2 A 7 GLY E 226 LYS E 230 -1 O GLY E 226 N ALA E 183 SHEET 3 A 7 GLU E 204 GLY E 216 -1 O VAL E 212 N ALA E 229 SHEET 4 A 7 PRO E 198 CYS E 201 -1 O VAL E 199 N GLN E 210 SHEET 5 A 7 MET E 135 GLY E 140 -1 N THR E 137 O VAL E 200 SHEET 6 A 7 GLN E 156 PRO E 161 -1 N GLN E 156 O GLY E 140 SHEET 7 A 7 TYR E 20 GLU E 21 -1 O TYR E 20 N CYS E 157 SHEET 1 A1 4 MET E 180 ALA E 183 0 SHEET 2 A1 4 GLY E 226 LYS E 230 -1 O GLY E 226 N ALA E 183 SHEET 3 A1 4 GLU E 204 GLY E 216 -1 O VAL E 212 N ALA E 229 SHEET 4 A1 4 CYS I 503 PRO I 504 -1 SHEET 1 B 7 GLN E 30 ASN E 34 0 SHEET 2 B 7 HIS E 40 ASN E 48 -1 N PHE E 41 O LEU E 33 SHEET 3 B 7 TRP E 51 SER E 54 -1 O TRP E 51 N VAL E 47 SHEET 4 B 7 MET E 104 LEU E 108 -1 O MET E 104 N SER E 54 SHEET 5 B 7 GLN E 81 ARG E 90 -1 N SER E 86 O LYS E 107 SHEET 6 B 7 GLU E 64 LEU E 67 -1 N VAL E 65 O ILE E 83 SHEET 7 B 7 GLN E 30 ASN E 34 -1 O SER E 32 N ARG E 66 SHEET 1 C 2 VAL I 521 LEU I 523 0 SHEET 2 C 2 TYR I 527 GLY I 529 -1 O TYR I 527 N LEU I 523 SSBOND 1 CYS E 22 CYS E 157 1555 1555 2.02 SSBOND 2 CYS E 42 CYS E 58 1555 1555 2.06 SSBOND 3 CYS E 128 CYS E 232 1555 1555 2.03 SSBOND 4 CYS E 136 CYS E 201 1555 1555 2.05 SSBOND 5 CYS E 168 CYS E 182 1555 1555 2.04 SSBOND 6 CYS E 191 CYS E 220 1555 1555 2.05 SSBOND 7 CYS I 503 CYS I 520 1555 1555 2.01 SSBOND 8 CYS I 510 CYS I 522 1555 1555 2.01 SSBOND 9 CYS I 516 CYS I 528 1555 1555 2.02 LINK OE1 GLU E 70 CA CA E 700 1555 1555 2.47 LINK O ASN E 72 CA CA E 700 1555 1555 2.34 LINK O VAL E 75 CA CA E 700 1555 1555 2.24 LINK OE1 GLU E 77 CA CA E 700 1555 1555 2.72 LINK OE2 GLU E 80 CA CA E 700 1555 1555 2.52 LINK CA CA E 700 O HOH E 755 1555 1555 2.48 SITE 1 AC1 6 GLU E 70 ASN E 72 VAL E 75 GLU E 77 SITE 2 AC1 6 GLU E 80 HOH E 755 CRYST1 62.300 63.700 82.300 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 0.016051 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015698 0.000000 0.00000 SCALE3 0.000000 0.000000 0.012151 0.00000