HEADER HYDROLASE (SERINE PROTEINASE) 24-JAN-77 2PTB OBSLTE 18-JAN-83 2PTB 3PTB TITLE THE REFINED CRYSTAL STRUCTURE OF BOVINE BETA-TRYPSIN AT 1.8 TITLE 2 ANGSTROMS RESOLUTION, $I.CRYSTALLIZATION,DATA COLLECTION TITLE 3 AND APPLICATION OF PATTERSON SEARCH TECHNIQUES COMPND MOL_ID: 1; COMPND 2 MOLECULE:; COMPND 3 CHAIN: NULL; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1 KEYWDS HYDROLASE (SERINE PROTEINASE) EXPDTA X-RAY DIFFRACTION AUTHOR H.FEHLHAMMER,W.BODE,P.SCHWAGER REVDAT 1 2PTB 0 SPRSDE 24-FEB-77 2PTB 1PTB JRNL AUTH H.FEHLHAMMER,W.BODE JRNL TITL THE REFINED CRYSTAL STRUCTURE OF BOVINE JRNL TITL 2 BETA-TRYPSIN AT 1.8 ANGSTROMS RESOLUTION, JRNL TITL 3 I.CRYSTALLIZATION,DATA COLLECTION AND APPLICATION JRNL TITL 4 OF PATTERSON SEARCH TECHNIQUES JRNL REF J.MOL.BIOL. V. 98 683 1975 JRNL REFN ASTM JMOBAK UK ISSN 0022-2836 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH W.BODE,P.SCHWAGER REMARK 1 TITL THE REFINED CRYSTAL STRUCTURE OF BOVINE REMARK 1 TITL 2 BETA-TRYPSIN AT 1.8 ANGSTROMS RESOLUTION, REMARK 1 TITL 3 II.CRYSTALLOGRAPHIC REFINEMENT,CALCIUM BINDING REMARK 1 TITL 4 SITE,BENZAMIDINE BINDING SITE AND ACTIVE SITE AT REMARK 1 TITL 5 PH 7.0 REMARK 1 REF J.MOL.BIOL. V. 98 693 1975 REMARK 1 REFN ASTM JMOBAK UK ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH W.BODE,P.SCHWAGER REMARK 1 TITL THE SINGLE CALCIUM-BINDING SITE OF CRYSTALLINE REMARK 1 TITL 2 BOVINE BETA-TRYPSIN REMARK 1 REF /FEBS LETT. V. 56 139 1975 REMARK 1 REFN ASTM FEBLAL NE ISSN 0014-5793 REMARK 1 REFERENCE 3 REMARK 1 AUTH W.BODE,P.SCHWAGER,R.HUBER REMARK 1 TITL STRUCTURAL STUDIES ON THE PANCREATIC TRYPSIN REMARK 1 TITL 2 INHIBITOR-TRYPSIN COMPLEX AND ITS FREE COMPONENTS. REMARK 1 TITL 3 STRUCTURE AND FUNCTION RELATIONSHIPS IN SERINE REMARK 1 TITL 4 PROTEASE INHIBITION AND CATALYSIS REMARK 1 REF MIAMI WINTER SYMP. V. 11 43 1976 REMARK 1 REFN ASTM MIWSAE US ISSN 0097-0808 REMARK 1 REFERENCE 4 REMARK 1 EDIT R.J.FELDMANN REMARK 1 REF ATLAS OF MACROMOLECULAR 227 1976 REMARK 1 REF 2 STRUCTURE ON MICROFICHE REMARK 1 PUBL TRACOR JITCO INC.,ROCKVILLE,MD. REMARK 1 REFN ISBN 0-917934-01-6 REMARK 1 REFERENCE 5 REMARK 1 EDIT M.O.DAYHOFF REMARK 1 REF ATLAS OF PROTEIN SEQUENCE V. 5 105 1972 REMARK 1 REF 2 AND STRUCTURE (DATA SECTION) REMARK 1 PUBL NATIONAL BIOMEDICAL RESEARCH FOUNDATION, SILVER REMARK 1 PUBL 2 SPRING,MD. REMARK 1 REFN ISBN 0-912466-02-2 REMARK 2 REMARK 2 RESOLUTION. NULL ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : NULL REMARK 3 AUTHORS : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : NULL REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL 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 : NULL 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) : NULL REMARK 3 FREE R VALUE : NULL 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 : 1629 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 54 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL 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) : 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) : NULL REMARK 3 BOND ANGLES (DEGREES) : NULL 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 2PTB COMPLIES WITH FORMAT V. 2.3, 09-JULY-1998 REMARK 5 REMARK 5 2PTB CORRECTION. STANDARDIZE FORMAT OF REMARKS 2 AND 3. REMARK 5 2PTB 31-DEC-80. 2PTB REMARK 6 REMARK 6 2PTB CORRECTION. REVISE REFERENCE 4. 01-MAR-82. 2PTB REMARK 7 REMARK 7 2PTB CORRECTION. THIS ENTRY IS OBSOLETE. 14-FEB-84. 2PTB REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : NULL REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : NULL REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : NULL REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 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 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.18 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.33 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL 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 1/2-X,-Y,1/2+Z REMARK 290 3555 -X,1/2+Y,1/2-Z REMARK 290 4555 1/2+X,1/2-Y,-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 27.44500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 33.81500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 29.26000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 33.81500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 27.44500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 29.26000 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 THIS ENTRY CONTAINS THE CRYSTALLOGRAPHIC ASYMMETRIC UNIT REMARK 300 WHICH CONSISTS OF 1 CHAIN(S). SEE REMARK 350 FOR REMARK 300 INFORMATION ON GENERATING THE BIOLOGICAL MOLECULE(S). REMARK 350 REMARK 350 GENERATING THE BIOMOLECULE 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS(M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 ASN 25 OD1 ND2 REMARK 470 GLN 30 OE1 NE2 REMARK 470 ASN 34 OD1 ND2 REMARK 470 ASN 48 OD1 ND2 REMARK 470 GLN 50 OE1 NE2 REMARK 470 GLN 64 OE1 NE2 REMARK 470 ASN 72 OD1 ND2 REMARK 470 ASN 74 OD1 ND2 REMARK 470 ASN 79 OD1 ND2 REMARK 470 GLN 81 OE1 NE2 REMARK 470 ASN 95 OD1 ND2 REMARK 470 ASN 97 OD1 ND2 REMARK 470 ASN 100 OD1 ND2 REMARK 470 ASN 101 OD1 ND2 REMARK 470 ASN 115 OD1 ND2 REMARK 470 GLN 135 OE1 NE2 REMARK 470 ASN 143 OD1 ND2 REMARK 470 ASN 165 OD1 ND2 REMARK 470 GLN 175 OE1 NE2 REMARK 470 ASN 179 OD1 ND2 REMARK 470 GLN 186 OE1 NE2 REMARK 470 GLN 192 OE1 NE2 REMARK 470 GLN 210 OE1 NE2 REMARK 470 GLN 221 OE1 NE2 REMARK 470 ASN 223 OD1 ND2 REMARK 470 ASN 233 OD1 ND2 REMARK 470 GLN 240 OE1 NE2 REMARK 470 ASN 245 OD1 ND2 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 REMARK 500 O GLY 69 O HOH 482 0.44 REMARK 500 C GLY 69 O HOH 482 1.49 REMARK 500 AE2 GLN 192 O HOH 502 1.59 REMARK 500 CG1 VAL 213 O HOH 401 1.79 REMARK 500 CA ASN 79 NH2 ARG 117 1.99 REMARK 500 O ILE 238 CD1 ILE 242 2.00 REMARK 500 CB ASN 79 NH2 ARG 117 2.10 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 470 O HOH 499 3545 0.60 REMARK 500 OH TYR 59 OD2 ASP 153 4556 1.73 REMARK 500 O ASN 97 NZ LYS 159 3555 2.08 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),F6.3) REMARK 500 REMARK 500 EXPECTED VALUES: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 RES CSSEQI ATM2 DEVIATION REMARK 500 TYR 151 CA TYR 151 CB 0.121 REMARK 500 GLY 187 N GLY 187 CA 0.126 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: ENGH AND HUBER, 1991 REMARK 500 REMARK 500 M RES CSSEQI ATM1 ATM2 ATM3 REMARK 500 PRO 28 CB - CA - C ANGL. DEV. = 19.4 DEGREES REMARK 500 PRO 28 CA - CB - CG ANGL. DEV. =-23.3 DEGREES REMARK 500 GLY 133 N - CA - C ANGL. DEV. = 22.1 DEGREES REMARK 500 PRO 173 CB - CA - C ANGL. DEV. = 21.7 DEGREES REMARK 500 GLY 211 N - CA - C ANGL. DEV. = 20.3 DEGREES REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: NON-CIS, NON-TRANS REMARK 500 REMARK 500 THE FOLLOWING PEPTIDE BONDS DEVIATE SIGNIFICANTLY FROM BOTH REMARK 500 CIS AND TRANS CONFORMATION. CIS BONDS, IF ANY, ARE LISTED REMARK 500 ON CISPEP RECORDS. TRANS IS DEFINED AS 180 +/- 30 AND REMARK 500 CIS IS DEFINED AS 0 +/- 30 DEGREES. REMARK 500 MODEL OMEGA REMARK 500 ASP 189 SER 190 149.76 REMARK 525 REMARK 525 SOLVENT REMARK 525 THE FOLLOWING SOLVENT MOLECULES LIE FARTHER THAN EXPECTED REMARK 525 FROM THE PROTEIN OR NUCLEIC ACID MOLECULE AND MAY BE REMARK 525 ASSOCIATED WITH A SYMMETRY RELATED MOLECULE (M=MODEL REMARK 525 NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH 499 DISTANCE = 5.74 ANGSTROMS SEQRES 1 223 ILE VAL GLY GLY TYR THR CYS GLY ALA ASN THR VAL PRO SEQRES 2 223 TYR GLN VAL SER LEU ASN SER GLY TYR HIS PHE CYS GLY SEQRES 3 223 GLY SER LEU ILE ASN SER GLN TRP VAL VAL SER ALA ALA SEQRES 4 223 HIS CYS TYR LYS SER GLY ILE GLN VAL ARG LEU GLY GLU SEQRES 5 223 ASP ASN ILE ASN VAL VAL GLU GLY ASN GLU GLN PHE ILE SEQRES 6 223 SER ALA SER LYS SER ILE VAL HIS PRO SER TYR ASN SER SEQRES 7 223 ASN THR LEU ASN ASN ASP ILE MET LEU ILE LYS LEU LYS SEQRES 8 223 SER ALA ALA SER LEU ASN SER ARG VAL ALA SER ILE SER SEQRES 9 223 LEU PRO THR SER CYS ALA SER ALA GLY THR GLN CYS LEU SEQRES 10 223 ILE SER GLY TRP GLY ASN THR LYS SER SER GLY THR SER SEQRES 11 223 TYR PRO ASP VAL LEU LYS CYS LEU LYS ALA PRO ILE LEU SEQRES 12 223 SER ASN SER SER CYS LYS SER ALA TYR PRO GLY GLN ILE SEQRES 13 223 THR SER ASN MET PHE CYS ALA GLY TYR LEU GLN GLY GLY SEQRES 14 223 LYS ASP SER CYS GLN GLY ASP SER GLY GLY PRO VAL VAL SEQRES 15 223 CYS SER GLY LYS LEU GLN GLY ILE VAL SER TRP GLY SER SEQRES 16 223 GLY CYS ALA GLN LYS ASN LYS PRO GLY VAL TYR THR LYS SEQRES 17 223 VAL CYS ASN TYR VAL SER TRP ILE LYS GLN THR ILE ALA SEQRES 18 223 SER ASN FTNOTE 1 THESE ATOMS WERE NOT FOUND IN THE ELECTRON DENSITY MAP. FTNOTE 1 THEIR COORDINATES WERE GENERATED USING STEREOCHEMICAL FTNOTE 1 CRITERIA. HET CA 480 1 HET BEN 1 9 HETNAM CA CALCIUM ION HETNAM BEN BENZAMIDINE FORMUL 2 CA CA 2+ FORMUL 3 BEN C7 H8 N2 FORMUL 4 HOH *54(H2 O1) HELIX 1 H1 SER 164 ILE 176 1SNGL ALPHA TURN,REST IRREG. 13 HELIX 2 H2 LYS 230 VAL 235 5CONTIGUOUS WITH H3 6 HELIX 3 H3 SER 236 ASN 245 1CONTIGUOUS WITH H2 10 SHEET 1 A 7 TYR 20 THR 21 0 SHEET 2 A 7 LYS 156 PRO 161 -1 O CYS 157 N TYR 20 SHEET 3 A 7 GLN 135 GLY 140 -1 N ILE 138 O LEU 158 SHEET 4 A 7 PRO 198 CYS 201 -1 O VAL 200 N LEU 137 SHEET 5 A 7 LYS 204 TRP 215 -1 O LYS 204 N CYS 201 SHEET 6 A 7 GLY 226 LYS 230 -1 O VAL 227 N TRP 215 SHEET 7 A 7 MET 180 ALA 183 -1 N PHE 181 O TYR 228 SHEET 1 B 7 GLN 30 ASN 34 0 SHEET 2 B 7 HIS 40 ASN 48 -1 O CYS 42 N LEU 33 SHEET 3 B 7 TRP 51 SER 54 -1 O VAL 53 N SER 45 SHEET 4 B 7 MET 104 LEU 108 -1 O ILE 106 N VAL 52 SHEET 5 B 7 GLN 81 VAL 90 -1 N ILE 89 O LEU 105 SHEET 6 B 7 GLN 64 LEU 67 -1 N LEU 67 O GLN 81 SHEET 7 B 7 GLN 30 ASN 34 -1 N ASN 34 O GLN 64 SSBOND 1 CYS 22 CYS 157 SSBOND 2 CYS 42 CYS 58 SSBOND 3 CYS 128 CYS 232 SSBOND 4 CYS 136 CYS 201 SSBOND 5 CYS 168 CYS 182 SSBOND 6 CYS 191 CYS 220 CRYST1 54.890 58.520 67.630 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 0.018218 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017088 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014786 0.00000