HEADER HYDROLASE 20-MAR-03 1OSS TITLE T190P STREPTOMYCES GRISEUS TRYPSIN IN COMPLEX WITH BENZAMIDINE COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: SGT; COMPND 5 EC: 3.4.21.4; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STREPTOMYCES GRISEUS; SOURCE 3 ORGANISM_TAXID: 1911; SOURCE 4 GENE: SPRT; SOURCE 5 EXPRESSION_SYSTEM: BACILLUS SUBTILIS; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 1423; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: WB700; SOURCE 8 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PWB980 KEYWDS TRYPSIN, SERINE PROTEASE, MUTANT, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR M.J.PAGE,S.L.WONG,J.HEWITT,N.C.STRYNADKA,R.T.MACGILLIVRAY REVDAT 5 06-NOV-24 1OSS 1 REMARK REVDAT 4 16-AUG-23 1OSS 1 REMARK REVDAT 3 27-OCT-21 1OSS 1 REMARK SEQADV LINK REVDAT 2 24-FEB-09 1OSS 1 VERSN REVDAT 1 19-AUG-03 1OSS 0 JRNL AUTH M.J.PAGE,S.L.WONG,J.HEWITT,N.C.STRYNADKA,R.T.MACGILLIVRAY JRNL TITL ENGINEERING THE PRIMARY SUBSTRATE SPECIFICITY OF JRNL TITL 2 STREPTOMYCES GRISEUS TRYPSIN. JRNL REF BIOCHEMISTRY V. 42 9060 2003 JRNL REFN ISSN 0006-2960 JRNL PMID 12885239 JRNL DOI 10.1021/BI0344230 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH R.J.READ,M.N.G.JAMES REMARK 1 TITL REFINED CRYSTAL STRUCTURE OF STREPTOMYCES GRISEUS TRYPSIN AT REMARK 1 TITL 2 1.7 ANGSTROMS RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 200 523 1988 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH R.J.READ,G.D.BRAYER,L.JURASEK,M.N.G.JAMES REMARK 1 TITL CRITICAL COMPARISON OF COMPARATIVE MODEL BUILDING OF REMARK 1 TITL 2 STREPTOMYCES GRISEUS TRYPSIN REMARK 1 REF BIOCHEMISTRY V. 23 6570 1984 REMARK 1 REFN ISSN 0006-2960 REMARK 2 REMARK 2 RESOLUTION. 1.93 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.93 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 19.86 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) (%) : 89.7 REMARK 3 NUMBER OF REFLECTIONS : 16130 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) : 0.167 REMARK 3 FREE R VALUE : 0.212 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.000 REMARK 3 FREE R VALUE TEST SET COUNT : 726 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.008 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) : 1.93 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.05 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 79.10 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1988 REMARK 3 BIN R VALUE (WORKING SET) : 0.1450 REMARK 3 BIN FREE R VALUE : 0.2000 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 4.60 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 95 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.021 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1623 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 193 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 7.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 12.80 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.58000 REMARK 3 B22 (A**2) : 2.67000 REMARK 3 B33 (A**2) : -2.09000 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) : NULL REMARK 3 ESD FROM SIGMAA (A) : NULL 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) : 0.23 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.12 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.007 REMARK 3 BOND ANGLES (DEGREES) : 1.400 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.70 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) : 1.120 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 1.550 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.020 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 2.750 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.44 REMARK 3 BSOL : 56.66 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 : ION.PARAM REMARK 3 PARAMETER FILE 3 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 4 : BEN_XPLOR_PAR.TXT REMARK 3 PARAMETER FILE 5 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : ION.TOP REMARK 3 TOPOLOGY FILE 3 : WATER.TOP REMARK 3 TOPOLOGY FILE 4 : BEN_XPLOR_TOP.TXT REMARK 3 TOPOLOGY FILE 5 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: REMARK 3 RESIDUES 165 AND 192 HAVE TWO ALTERNATE CONFORMATIONS THAT REMARK 3 ARE CLEARLY VISIBLE IN THE ELECTRON DENSITY REMARK 4 REMARK 4 1OSS COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-MAR-03. REMARK 100 THE DEPOSITION ID IS D_1000018632. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 21-NOV-02 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : OSMIC MIRRORS REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE 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 : 16130 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.930 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 89.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.03100 REMARK 200 R SYM (I) : NULL 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) : 1.93 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.00 REMARK 200 COMPLETENESS FOR SHELL (%) : 79.1 REMARK 200 DATA REDUNDANCY IN SHELL : NULL REMARK 200 R MERGE FOR SHELL (I) : 0.05600 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: RIGID BODY REFINEMENT REMARK 200 SOFTWARE USED: CNS 1.1 REMARK 200 STARTING MODEL: 1SGT REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 38.70 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.02 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.55 M AMMONIUM SULPHATE, 10 MM REMARK 280 CALCIUM ACETATE , PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 2 2 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -X,Y,-Z+1/2 REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 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 59.91450 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 59.91450 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 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 25.03950 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.80050 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 25.03950 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.80050 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 59.91450 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 25.03950 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 34.80050 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 59.91450 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 25.03950 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 34.80050 REMARK 290 SMTRY3 8 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: MONOMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 271 O HOH A 271 4546 0.99 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 ASN A 95 20.63 -150.58 REMARK 500 ASN A 178 -3.20 68.09 REMARK 500 ASP A 189 143.20 -172.94 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 249 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 ASP A 165 OD1 REMARK 620 2 ASP A 165 OD2 45.6 REMARK 620 3 GLU A 180 O 82.3 127.2 REMARK 620 4 GLU A 230 OE2 165.7 148.7 83.6 REMARK 620 5 HOH A 294 O 62.2 58.7 109.6 121.3 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 247 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 248 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 249 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE BEN A 246 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SGT RELATED DB: PDB REMARK 900 NATIVE STREPTOMYCES GRISEUS TRYPSIN REMARK 900 RELATED ID: 1OS8 RELATED DB: PDB REMARK 900 RECOMBINANT STREPTOMYCES GRISEUS TRYPSIN REMARK 999 REMARK 999 SEQUENCE REMARK 999 AMINO ACID NUMBERING IS BASED ON CHYMOTRYPSINOGEN REMARK 999 AND IS THE SAME AS THAT USED IN THE NATIVE REMARK 999 STRUCTURE (PDB ID 1SGT). DBREF 1OSS A 16 238 UNP P00775 TRYP_STRGR 130 352 SEQADV 1OSS PRO A 190 UNP P00775 THR 296 ENGINEERED MUTATION SEQRES 1 A 223 VAL VAL GLY GLY THR ARG ALA ALA GLN GLY GLU PHE PRO SEQRES 2 A 223 PHE MET VAL ARG LEU SER MET GLY CYS GLY GLY ALA LEU SEQRES 3 A 223 TYR ALA GLN ASP ILE VAL LEU THR ALA ALA HIS CYS VAL SEQRES 4 A 223 SER GLY SER GLY ASN ASN THR SER ILE THR ALA THR GLY SEQRES 5 A 223 GLY VAL VAL ASP LEU GLN SER SER SER ALA VAL LYS VAL SEQRES 6 A 223 ARG SER THR LYS VAL LEU GLN ALA PRO GLY TYR ASN GLY SEQRES 7 A 223 THR GLY LYS ASP TRP ALA LEU ILE LYS LEU ALA GLN PRO SEQRES 8 A 223 ILE ASN GLN PRO THR LEU LYS ILE ALA THR THR THR ALA SEQRES 9 A 223 TYR ASN GLN GLY THR PHE THR VAL ALA GLY TRP GLY ALA SEQRES 10 A 223 ASN ARG GLU GLY GLY SER GLN GLN ARG TYR LEU LEU LYS SEQRES 11 A 223 ALA ASN VAL PRO PHE VAL SER ASP ALA ALA CYS ARG SER SEQRES 12 A 223 ALA TYR GLY ASN GLU LEU VAL ALA ASN GLU GLU ILE CYS SEQRES 13 A 223 ALA GLY TYR PRO ASP THR GLY GLY VAL ASP PRO CYS GLN SEQRES 14 A 223 GLY ASP SER GLY GLY PRO MET PHE ARG LYS ASP ASN ALA SEQRES 15 A 223 ASP GLU TRP ILE GLN VAL GLY ILE VAL SER TRP GLY TYR SEQRES 16 A 223 GLY CYS ALA ARG PRO GLY TYR PRO GLY VAL TYR THR GLU SEQRES 17 A 223 VAL SER THR PHE ALA SER ALA ILE ALA SER ALA ALA ARG SEQRES 18 A 223 THR LEU HET SO4 A 247 5 HET SO4 A 248 5 HET CA A 249 1 HET BEN A 246 9 HETNAM SO4 SULFATE ION HETNAM CA CALCIUM ION HETNAM BEN BENZAMIDINE FORMUL 2 SO4 2(O4 S 2-) FORMUL 4 CA CA 2+ FORMUL 5 BEN C7 H8 N2 FORMUL 6 HOH *193(H2 O) HELIX 1 1 ALA A 55 VAL A 59 5 5 HELIX 2 2 SER A 164 GLY A 173 1 10 HELIX 3 3 ASN A 174 LEU A 176 5 3 HELIX 4 4 VAL A 231 THR A 244 1 14 SHEET 1 A10 THR A 20 ARG A 21 0 SHEET 2 A10 LEU A 156 VAL A 163 -1 N LYS A 157 O THR A 20 SHEET 3 A10 THR A 135 GLY A 140 -1 N PHE A 136 O VAL A 160 SHEET 4 A10 PRO A 198 LYS A 202 -1 O PRO A 198 N ALA A 139 SHEET 5 A10 TRP A 207 TRP A 215 -1 N ILE A 208 O ARG A 201 SHEET 6 A10 LYS A 122 ILE A 123 1 O LYS A 122 N GLN A 209 SHEET 7 A10 TRP A 207 TRP A 215 1 O TRP A 207 N LYS A 122 SHEET 8 A10 GLY A 226 GLU A 230 -1 N VAL A 227 O TRP A 215 SHEET 9 A10 GLU A 180 ALA A 183 -1 N ILE A 181 O TYR A 228 SHEET 10 A10 LEU A 156 VAL A 163 -1 N VAL A 163 O CYS A 182 SHEET 1 B 8 GLY A 60C ASN A 60D 0 SHEET 2 B 8 VAL A 81 GLN A 90 -1 N VAL A 88 O GLY A 60C SHEET 3 B 8 THR A 65 GLY A 68 -1 N ALA A 66 O VAL A 83 SHEET 4 B 8 MET A 30 LEU A 33 -1 O ARG A 32 N THR A 67 SHEET 5 B 8 CYS A 42 ALA A 48 -1 O CYS A 42 N LEU A 33 SHEET 6 B 8 ILE A 51 THR A 54 -1 O ILE A 51 N TYR A 47 SHEET 7 B 8 ALA A 104 LEU A 108 -1 O ALA A 104 N THR A 54 SHEET 8 B 8 VAL A 81 GLN A 90 -1 N THR A 86 O LYS A 107 SSBOND 1 CYS A 42 CYS A 58 1555 1555 2.03 SSBOND 2 CYS A 168 CYS A 182 1555 1555 2.03 SSBOND 3 CYS A 191 CYS A 220 1555 1555 2.04 LINK OD1AASP A 165 CA CA A 249 1555 1555 2.62 LINK OD2AASP A 165 CA CA A 249 1555 1555 2.98 LINK O GLU A 180 CA CA A 249 1555 1555 2.79 LINK OE2 GLU A 230 CA CA A 249 1555 1555 3.04 LINK CA CA A 249 O HOH A 294 1555 1555 2.87 SITE 1 AC1 5 ARG A 145 GLY A 149 SER A 150 HOH A 396 SITE 2 AC1 5 HOH A 442 SITE 1 AC2 10 HIS A 57 SER A 164 ASP A 165 ALA A 166 SITE 2 AC2 10 GLN A 192 SER A 195 BEN A 246 HOH A 279 SITE 3 AC2 10 HOH A 297 HOH A 441 SITE 1 AC3 4 ASP A 165 GLU A 180 GLU A 230 HOH A 294 SITE 1 AC4 11 ASP A 189 PRO A 190 CYS A 191 GLN A 192 SITE 2 AC4 11 SER A 195 VAL A 213 TRP A 215 GLY A 219 SITE 3 AC4 11 GLY A 226 SO4 A 248 HOH A 292 CRYST1 50.079 69.601 119.829 90.00 90.00 90.00 C 2 2 21 8 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 0.019968 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014368 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008345 0.00000