HEADER COMPLEX (HYDROLASE/INHIBITOR) 09-JUL-97 1HJA TITLE LYS 18 VARIANT OF TURKEY OVOMUCOID INHIBITOR THIRD DOMAIN COMPLEXED TITLE 2 WITH ALPHA-CHYMOTRYPSIN COMPND MOL_ID: 1; COMPND 2 MOLECULE: ALPHA-CHYMOTRYPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.1; COMPND 5 MOL_ID: 2; COMPND 6 MOLECULE: ALPHA-CHYMOTRYPSIN; COMPND 7 CHAIN: B; COMPND 8 EC: 3.4.21.1; COMPND 9 ENGINEERED: YES; COMPND 10 MOL_ID: 3; COMPND 11 MOLECULE: ALPHA-CHYMOTRYPSIN; COMPND 12 CHAIN: C; COMPND 13 EC: 3.4.21.1; COMPND 14 ENGINEERED: YES; COMPND 15 MOL_ID: 4; COMPND 16 MOLECULE: OVOMUCOID INHIBITOR; COMPND 17 CHAIN: I; COMPND 18 FRAGMENT: THIRD DOMAIN, DELETION OF FIRST 5 RESIDUES FROM N-TERMINUS; COMPND 19 SYNONYM: LYS18-OMTKY3; COMPND 20 ENGINEERED: YES; COMPND 21 MUTATION: YES; COMPND 22 OTHER_DETAILS: TURKEY OVOMUCOID INHIBITOR SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 3 ORGANISM_COMMON: CATTLE; SOURCE 4 ORGANISM_TAXID: 9913; SOURCE 5 OTHER_DETAILS: COMMERCIAL PRODUCT OF WORTHINGTON BIOCHEMICAL SOURCE 6 CORPORATION; SOURCE 7 MOL_ID: 2; SOURCE 8 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 9 ORGANISM_COMMON: CATTLE; SOURCE 10 ORGANISM_TAXID: 9913; SOURCE 11 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 12 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 13 EXPRESSION_SYSTEM_PLASMID: PEZZ318.TKY; SOURCE 14 OTHER_DETAILS: COMMERCIAL PRODUCT OF WORTHINGTON BIOCHEMICAL SOURCE 15 CORPORATION; SOURCE 16 MOL_ID: 3; SOURCE 17 ORGANISM_SCIENTIFIC: BOS TAURUS; SOURCE 18 ORGANISM_COMMON: CATTLE; SOURCE 19 ORGANISM_TAXID: 9913; SOURCE 20 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 21 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 22 EXPRESSION_SYSTEM_PLASMID: PEZZ318.TKY; SOURCE 23 OTHER_DETAILS: COMMERCIAL PRODUCT OF WORTHINGTON BIOCHEMICAL SOURCE 24 CORPORATION; SOURCE 25 MOL_ID: 4; SOURCE 26 ORGANISM_SCIENTIFIC: MELEAGRIS GALLOPAVO; SOURCE 27 ORGANISM_COMMON: TURKEY; SOURCE 28 ORGANISM_TAXID: 9103; SOURCE 29 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 30 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 31 EXPRESSION_SYSTEM_PLASMID: PEZZ318.TKY KEYWDS COMPLEX (HYDROLASE-INHIBITOR), ALPHA-CHYMOTRYPSIN, PROTEIN INHIBITOR, KEYWDS 2 COMPLEX (HYDROLASE-INHIBITOR) COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.-H.DING,M.N.G.JAMES REVDAT 4 04-APR-18 1HJA 1 REMARK REVDAT 3 01-JUN-16 1HJA 1 DBREF VERSN REVDAT 2 24-FEB-09 1HJA 1 VERSN REVDAT 1 14-JAN-98 1HJA 0 JRNL AUTH J.DING,M.A.QASIM,M.LASKOWSKI JUNIOR,M.N.G.JAMES JRNL TITL CRYSTAL STRUCTURE OF LYS18 VARIANT OF TURKEY OVOMUCOID JRNL TITL 2 INHIBITOR THIRD DOMAIN COMPLEXED WITH ALPHA-CHYMOTRYPSIN AT JRNL TITL 3 2.3 A JRNL REF TO BE PUBLISHED JRNL REFN REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.FUJINAGA,A.R.SIELECKI,R.J.READ,W.ARDELT, REMARK 1 AUTH 2 M.LASKOWSKI JUNIOR,M.N.JAMES REMARK 1 TITL CRYSTAL AND MOLECULAR STRUCTURES OF THE COMPLEX OF REMARK 1 TITL 2 ALPHA-CHYMOTRYPSIN WITH ITS INHIBITOR TURKEY OVOMUCOID THIRD REMARK 1 TITL 3 DOMAIN AT 1.8 A RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 195 397 1987 REMARK 1 REFN ISSN 0022-2836 REMARK 2 REMARK 2 RESOLUTION. 2.30 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.843 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 86.9 REMARK 3 NUMBER OF REFLECTIONS : 11136 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.193 REMARK 3 FREE R VALUE : 0.246 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 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 : 8 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.40 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 69.27 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 997 REMARK 3 BIN R VALUE (WORKING SET) : 0.2707 REMARK 3 BIN FREE R VALUE : 0.3100 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.60 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 : 2138 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 99 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 32.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.55 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : 0.36 REMARK 3 LOW RESOLUTION CUTOFF (A) : NULL 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) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.536 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 26.43 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.331 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 1HJA COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000173879. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 04-NOV-96 REMARK 200 TEMPERATURE (KELVIN) : 293 REMARK 200 PH : 6.0 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 : OTHER REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : XENGEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11136 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 REMARK 200 RESOLUTION RANGE LOW (A) : 10.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.9 REMARK 200 DATA REDUNDANCY : 8.700 REMARK 200 R MERGE (I) : 0.10800 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 5.8900 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.40 REMARK 200 COMPLETENESS FOR SHELL (%) : 69.3 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.843 REMARK 200 STARTING MODEL: PDB ENTRY 1CHO REMARK 200 REMARK 200 REMARK: ALPHA-CHYMOTRYPSIN (E.C.3.4.21.1) COMPLEX WITH TURKEY REMARK 200 OVOMUCOID THIRD DOMAIN REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.84 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.48 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M KH2PO4/K2HPO4 PH=6.0 10% REMARK 280 PEG6000, PH 6.0 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 15.70667 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 31.41333 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 23.56000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 39.26667 REMARK 290 SMTRY1 6 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 7.85333 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: TETRAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: TETRAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 8930 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 11600 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -66.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, C, 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 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 SER A 11 REMARK 465 GLY A 12 REMARK 465 LEU A 13 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 ASN B 48 -172.67 -170.78 REMARK 500 PHE B 71 -62.28 -132.24 REMARK 500 SER B 76 33.09 -176.06 REMARK 500 SER B 115 -159.78 -163.18 REMARK 500 SER C 214 -74.28 -120.82 REMARK 500 SER I 44 -9.94 -59.03 REMARK 500 HIS I 52 160.91 174.16 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: ACT REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE OF ENZYME. REMARK 800 REMARK 800 SITE_IDENTIFIER: REA REMARK 800 EVIDENCE_CODE: UNKNOWN REMARK 800 SITE_DESCRIPTION: REACTIVE SITE OF INHIBITOR. DBREF 1HJA A 1 13 UNP P00766 CTRB_BOVIN 1 13 DBREF 1HJA B 16 146 UNP P00766 CTRA_BOVIN 16 146 DBREF 1HJA C 149 245 UNP P00766 CTRA_BOVIN 149 245 DBREF 1HJA I 6 56 UNP P68390 IOVO_MELGA 135 185 SEQADV 1HJA LYS I 18 UNP P68390 LEU 147 CONFLICT SEQRES 1 A 13 CYS GLY VAL PRO ALA ILE GLN PRO VAL LEU SER GLY LEU SEQRES 1 B 131 ILE VAL ASN GLY GLU GLU ALA VAL PRO GLY SER TRP PRO SEQRES 2 B 131 TRP GLN VAL SER LEU GLN ASP LYS THR GLY PHE HIS PHE SEQRES 3 B 131 CYS GLY GLY SER LEU ILE ASN GLU ASN TRP VAL VAL THR SEQRES 4 B 131 ALA ALA HIS CYS GLY VAL THR THR SER ASP VAL VAL VAL SEQRES 5 B 131 ALA GLY GLU PHE ASP GLN GLY SER SER SER GLU LYS ILE SEQRES 6 B 131 GLN LYS LEU LYS ILE ALA LYS VAL PHE LYS ASN SER LYS SEQRES 7 B 131 TYR ASN SER LEU THR ILE ASN ASN ASP ILE THR LEU LEU SEQRES 8 B 131 LYS LEU SER THR ALA ALA SER PHE SER GLN THR VAL SER SEQRES 9 B 131 ALA VAL CYS LEU PRO SER ALA SER ASP ASP PHE ALA ALA SEQRES 10 B 131 GLY THR THR CYS VAL THR THR GLY TRP GLY LEU THR ARG SEQRES 11 B 131 TYR SEQRES 1 C 97 ALA ASN THR PRO ASP ARG LEU GLN GLN ALA SER LEU PRO SEQRES 2 C 97 LEU LEU SER ASN THR ASN CYS LYS LYS TYR TRP GLY THR SEQRES 3 C 97 LYS ILE LYS ASP ALA MET ILE CYS ALA GLY ALA SER GLY SEQRES 4 C 97 VAL SER SER CYS MET GLY ASP SER GLY GLY PRO LEU VAL SEQRES 5 C 97 CYS LYS LYS ASN GLY ALA TRP THR LEU VAL GLY ILE VAL SEQRES 6 C 97 SER TRP GLY SER SER THR CYS SER THR SER THR PRO GLY SEQRES 7 C 97 VAL TYR ALA ARG VAL THR ALA LEU VAL ASN TRP VAL GLN SEQRES 8 C 97 GLN THR LEU ALA ALA ASN SEQRES 1 I 51 VAL ASP CYS SER GLU TYR PRO LYS PRO ALA CYS THR LYS SEQRES 2 I 51 GLU TYR ARG PRO LEU CYS GLY SER ASP ASN LYS THR TYR SEQRES 3 I 51 GLY ASN LYS CYS ASN PHE CYS ASN ALA VAL VAL GLU SER SEQRES 4 I 51 ASN GLY THR LEU THR LEU SER HIS PHE GLY LYS CYS FORMUL 5 HOH *99(H2 O) HELIX 1 1 ALA B 56 CYS B 58 5 3 HELIX 2 2 ASN C 165 LYS C 175 1 11 HELIX 3 3 VAL C 231 ALA C 233 5 3 HELIX 4 4 VAL C 235 ALA C 243 1 9 HELIX 5 5 LYS I 34 GLU I 43 1 10 SHEET 1 A 4 GLN B 81 LYS B 84 0 SHEET 2 A 4 VAL B 65 ALA B 68 -1 N ALA B 68 O GLN B 81 SHEET 3 A 4 GLN B 30 GLN B 34 -1 N GLN B 34 O VAL B 65 SHEET 4 A 4 HIS B 40 SER B 45 -1 N GLY B 44 O VAL B 31 SHEET 1 B 3 TRP B 51 THR B 54 0 SHEET 2 B 3 THR B 104 LEU B 108 -1 N LEU B 106 O VAL B 52 SHEET 3 B 3 ILE B 85 LYS B 90 -1 N PHE B 89 O LEU B 105 SHEET 1 C 4 MET C 180 GLY C 184 0 SHEET 2 C 4 PRO C 225 ARG C 230 -1 N TYR C 228 O ILE C 181 SHEET 3 C 4 ALA C 206 TRP C 215 -1 N TRP C 215 O VAL C 227 SHEET 4 C 4 PRO C 198 LYS C 203 -1 N LYS C 203 O ALA C 206 SHEET 1 D 2 LEU I 23 GLY I 25 0 SHEET 2 D 2 LEU I 50 PHE I 53 -1 N HIS I 52 O CYS I 24 SSBOND 1 CYS A 1 CYS B 122 1555 1555 2.02 SSBOND 2 CYS B 42 CYS B 58 1555 1555 2.03 SSBOND 3 CYS B 136 CYS C 201 1555 1555 2.02 SSBOND 4 CYS C 168 CYS C 182 1555 1555 2.02 SSBOND 5 CYS C 191 CYS C 220 1555 1555 2.02 SSBOND 6 CYS I 8 CYS I 38 1555 1555 2.03 SSBOND 7 CYS I 16 CYS I 35 1555 1555 2.02 SSBOND 8 CYS I 24 CYS I 56 1555 1555 2.03 CISPEP 1 TYR I 11 PRO I 12 0 -0.05 SITE 1 ACT 3 HIS B 57 ASP B 102 SER C 195 SITE 1 REA 2 LYS I 18 GLU I 19 CRYST1 103.470 103.470 47.120 90.00 90.00 120.00 P 61 6 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 0.009665 0.005580 0.000000 0.00000 SCALE2 0.000000 0.011160 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021222 0.00000