PDB Short entry for 1S6H HEADER HYDROLASE 23-JAN-04 1S6H TITLE PORCINE TRYPSIN COMPLEXED WITH GUANIDINE-3-PROPANOL INHIBITOR COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRYPSIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.4 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SUS SCROFA; SOURCE 3 ORGANISM_COMMON: PIG; SOURCE 4 ORGANISM_TAXID: 9823; SOURCE 5 ORGAN: PANCREAS KEYWDS HYDROLASE, SERINE PROTEASE EXPDTA X-RAY DIFFRACTION AUTHOR T.R.TRANSUE,J.M.KRAHN,S.A.GABEL,E.F.DEROSE,R.E.LONDON REVDAT 5 23-AUG-23 1S6H 1 REMARK LINK REVDAT 4 11-OCT-17 1S6H 1 REMARK REVDAT 3 13-JUL-11 1S6H 1 VERSN REVDAT 2 24-FEB-09 1S6H 1 VERSN REVDAT 1 16-MAR-04 1S6H 0 JRNL AUTH T.R.TRANSUE,J.M.KRAHN,S.A.GABEL,E.F.DEROSE,R.E.LONDON JRNL TITL X-RAY AND NMR CHARACTERIZATION OF COVALENT COMPLEXES OF JRNL TITL 2 TRYPSIN, BORATE, AND ALCOHOLS. JRNL REF BIOCHEMISTRY V. 43 2829 2004 JRNL REFN ISSN 0006-2960 JRNL PMID 15005618 JRNL DOI 10.1021/BI035782Y REMARK 2 REMARK 2 RESOLUTION. 1.45 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 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 : AMBER98 REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 100.00 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) (%) : 87.6 REMARK 3 NUMBER OF REFLECTIONS : 29998 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) : 0.154 REMARK 3 FREE R VALUE : 0.179 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 1560 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 : 1642 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 23 REMARK 3 SOLVENT ATOMS : 287 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 14.26 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 2.79600 REMARK 3 B22 (A**2) : -0.75800 REMARK 3 B33 (A**2) : -3.55400 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) : NULL REMARK 3 ESD FROM C-V SIGMAA (A) : NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 2.100 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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) : 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 : NULL REMARK 3 KSOL : NULL REMARK 3 BSOL : 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 1S6H COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 26-JAN-04. REMARK 100 THE DEPOSITION ID IS D_1000021427. 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) : 100.0 REMARK 200 PH : 8 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 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : MSC/YALE DOUBLE FOCUSING MIRRORS REMARK 200 OPTICS : MSC/YALE DOUBLE FOCUSING MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : R-AXIS REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 29998 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.450 REMARK 200 RESOLUTION RANGE LOW (A) : 100.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 87.6 REMARK 200 DATA REDUNDANCY : 6.012 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05100 REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 27.6093 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.45 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.50 REMARK 200 COMPLETENESS FOR SHELL (%) : 80.5 REMARK 200 DATA REDUNDANCY IN SHELL : 4.70 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.30800 REMARK 200 <I/SIGMA(I)> FOR SHELL : 4.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1AKS 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): 2.01 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 1.8M MGCL2, 50MM HEPES, 5MM CACL2, REMARK 280 VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 298K, PH 8 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 38.11400 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 23.25750 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 26.59900 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 23.25750 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 38.11400 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 26.59900 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: 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 IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 HG SER A 54 H ALA A 55 1.15 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 PHE A 82 CB - CG - CD2 ANGL. DEV. = -6.4 DEGREES REMARK 500 ARG A 117 CD - NE - CZ ANGL. DEV. = 9.2 DEGREES REMARK 500 ARG A 117 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 117 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 ASP A 194 OD1 - CG - OD2 ANGL. DEV. = 11.8 DEGREES REMARK 500 ASP A 194 CB - CG - OD2 ANGL. DEV. = -9.8 DEGREES REMARK 500 TYR A 217 CB - CG - CD1 ANGL. DEV. = -3.9 DEGREES REMARK 500 TYR A 228 CG - CD1 - CE1 ANGL. DEV. = -5.2 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 HIS A 71 -64.09 -120.19 REMARK 500 LEU A 99 17.83 59.22 REMARK 500 SER A 214 -65.03 -124.41 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 62 0.11 SIDE CHAIN REMARK 500 TYR A 217 0.09 SIDE CHAIN 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 4 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 70 OE1 REMARK 620 2 ASN A 72 O 88.7 REMARK 620 3 VAL A 75 O 161.1 83.6 REMARK 620 4 GLU A 77 OE1 93.4 94.9 104.4 REMARK 620 5 GLU A 80 OE2 96.7 172.4 92.9 79.4 REMARK 620 6 HOH A 308 O 80.9 97.3 83.1 166.3 88.9 REMARK 620 7 HOH A 510 O 80.9 88.0 115.9 14.1 87.4 160.9 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 MG A 5 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 HOH A 433 O REMARK 620 2 HOH A 434 O 88.2 REMARK 620 3 HOH A 435 O 93.4 94.9 REMARK 620 4 HOH A 436 O 92.5 179.2 85.4 REMARK 620 5 HOH A 437 O 171.9 83.6 87.2 95.6 REMARK 620 6 HOH A 438 O 92.3 86.7 174.0 92.9 87.2 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 SO4 A 2 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 3 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 4 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 5 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 4BZ A 1 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1S5S RELATED DB: PDB REMARK 900 RELATED ID: 1S6F RELATED DB: PDB DBREF 1S6H A 16 245 UNP P00761 TRYP_PIG 9 231 SEQRES 1 A 223 ILE VAL GLY GLY TYR THR CYS ALA ALA ASN SER ILE PRO SEQRES 2 A 223 TYR GLN VAL SER LEU ASN SER GLY SER 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 ARG ILE GLN VAL ARG LEU GLY GLU SEQRES 5 A 223 HIS ASN ILE ASP VAL LEU GLU GLY ASN GLU GLN PHE ILE SEQRES 6 A 223 ASN ALA ALA LYS ILE ILE THR HIS PRO ASN PHE ASN GLY SEQRES 7 A 223 ASN THR LEU ASP ASN ASP ILE MET LEU ILE LYS LEU SER SEQRES 8 A 223 SER PRO ALA THR LEU ASN SER ARG VAL ALA THR VAL SER SEQRES 9 A 223 LEU PRO ARG SER CYS ALA ALA ALA GLY THR GLU CYS LEU SEQRES 10 A 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY SER SER SEQRES 11 A 223 TYR PRO SER LEU LEU GLN CYS LEU LYS ALA PRO VAL LEU SEQRES 12 A 223 SER ASP SER SER CYS LYS SER SER TYR PRO GLY GLN ILE SEQRES 13 A 223 THR GLY ASN MET ILE CYS VAL GLY PHE 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 ASN GLY GLN LEU GLN GLY ILE VAL SER TRP GLY TYR 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 ASN TRP ILE GLN GLN THR ILE ALA SEQRES 18 A 223 ALA ASN HET SO4 A 2 5 HET SO4 A 3 5 HET CA A 4 1 HET MG A 5 1 HET 4BZ A 1 28 HETNAM SO4 SULFATE ION HETNAM CA CALCIUM ION HETNAM MG MAGNESIUM ION HETNAM 4BZ 4-(HYDROXYMETHYL)BENZAMIDINE FORMUL 2 SO4 2(O4 S 2-) FORMUL 4 CA CA 2+ FORMUL 5 MG MG 2+ FORMUL 6 4BZ C8 H10 N2 O FORMUL 7 HOH *287(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 TYR A 234 ASN A 245 1 12 SHEET 1 A 7 TYR A 20 THR A 21 0 SHEET 2 A 7 GLN A 156 PRO A 161 -1 O CYS A 157 N TYR A 20 SHEET 3 A 7 GLU 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 GLN A 204 TRP A 215 -1 O GLN 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 VAL A 183 -1 N ILE 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 THR A 90 -1 N ALA 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 SER A 32 O ARG A 66 SSBOND 1 CYS A 22 CYS A 157 1555 1555 2.01 SSBOND 2 CYS A 42 CYS A 58 1555 1555 2.04 SSBOND 3 CYS A 128 CYS A 232 1555 1555 1.99 SSBOND 4 CYS A 136 CYS A 201 1555 1555 2.04 SSBOND 5 CYS A 168 CYS A 182 1555 1555 2.00 SSBOND 6 CYS A 191 CYS A 220 1555 1555 2.22 LINK CA CA A 4 OE1 GLU A 70 1555 1555 2.18 LINK CA CA A 4 O ASN A 72 1555 1555 2.23 LINK CA CA A 4 O VAL A 75 1555 1555 2.16 LINK CA CA A 4 OE1BGLU A 77 1555 1555 2.42 LINK CA CA A 4 OE2 GLU A 80 1555 1555 2.13 LINK CA CA A 4 O HOH A 308 1555 1555 2.19 LINK CA CA A 4 O AHOH A 510 1555 1555 2.23 LINK MG MG A 5 O HOH A 433 1555 1555 2.03 LINK MG MG A 5 O HOH A 434 1555 1555 2.29 LINK MG MG A 5 O HOH A 435 1555 1555 2.37 LINK MG MG A 5 O HOH A 436 1555 1555 2.11 LINK MG MG A 5 O HOH A 437 1555 1555 2.12 LINK MG MG A 5 O HOH A 438 1555 1555 2.37 SITE 1 AC1 12 4BZ A 1 CYS A 42 HIS A 57 CYS A 128 SITE 2 AC1 12 GLN A 192 GLY A 193 SER A 195 HOH A 296 SITE 3 AC1 12 HOH A 404 HOH A 424 HOH A 526 HOH A 527 SITE 1 AC2 4 ARG A 66 HOH A 273 HOH A 345 HOH A 432 SITE 1 AC3 7 GLU A 70 ASN A 72 VAL A 75 GLU A 77 SITE 2 AC3 7 GLU A 80 HOH A 308 HOH A 510 SITE 1 AC4 6 HOH A 433 HOH A 434 HOH A 435 HOH A 436 SITE 2 AC4 6 HOH A 437 HOH A 438 SITE 1 AC5 19 SO4 A 2 HIS A 57 ARG A 125 SER A 127 SITE 2 AC5 19 CYS A 128 ASP A 189 SER A 190 CYS A 191 SITE 3 AC5 19 GLN A 192 SER A 195 SER A 214 TRP A 215 SITE 4 AC5 19 GLY A 216 GLY A 219 CYS A 220 GLY A 226 SITE 5 AC5 19 HOH A 317 HOH A 420 HOH A 526 CRYST1 76.228 53.198 46.515 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 0.013119 0.000000 0.000000 0.00000 SCALE2 0.000000 0.018798 0.000000 0.00000 SCALE3 0.000000 0.000000 0.021498 0.00000