HEADER HYDROLASE (SERINE PROTEINASE) 20-FEB-91 1S02 TITLE EFFECTS OF ENGINEERED SALT BRIDGES ON THE STABILITY OF SUBTILISIN BPN' COMPND MOL_ID: 1; COMPND 2 MOLECULE: SUBTILISIN BPN'; COMPND 3 CHAIN: A; COMPND 4 EC: 3.4.21.14; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: BACILLUS AMYLOLIQUEFACIENS; SOURCE 3 ORGANISM_TAXID: 1390 KEYWDS HYDROLASE (SERINE PROTEINASE) EXPDTA X-RAY DIFFRACTION AUTHOR C.R.ERWIN,B.L.BARNETT,J.D.OLIVER,J.F.SULLIVAN REVDAT 5 14-FEB-24 1S02 1 REMARK SEQADV LINK REVDAT 4 29-NOV-17 1S02 1 HELIX REVDAT 3 24-FEB-09 1S02 1 VERSN REVDAT 2 11-NOV-03 1S02 1 TITLE KEYWDS EXPDTA REVDAT 1 15-JAN-92 1S02 0 JRNL AUTH C.R.ERWIN,B.L.BARNETT,J.D.OLIVER,J.F.SULLIVAN JRNL TITL EFFECTS OF ENGINEERED SALT BRIDGES ON THE STABILITY OF JRNL TITL 2 SUBTILISIN BPN'. JRNL REF PROTEIN ENG. V. 4 87 1990 JRNL REFN ISSN 0269-2139 JRNL PMID 2127106 JRNL DOI 10.1093/PROTEIN/4.1.87 REMARK 2 REMARK 2 RESOLUTION. 1.90 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROLSQ REMARK 3 AUTHORS : KONNERT,HENDRICKSON REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.90 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : NULL REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 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 + TEST SET) : 0.169 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 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : NULL REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1938 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 7 REMARK 3 SOLVENT ATOMS : 118 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 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.020 ; 0.030 REMARK 3 ANGLE DISTANCE (A) : 0.031 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.035 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : 0.009 ; 0.020 REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.124 ; 0.150 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.175 ; 0.500 REMARK 3 MULTIPLE TORSION (A) : 0.188 ; 0.500 REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : 0.228 ; 0.500 REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 1.500 ; 3.000 REMARK 3 STAGGERED (DEGREES) : 14.600; 15.000 REMARK 3 TRANSVERSE (DEGREES) : NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 0.612 ; 1.000 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 0.969 ; 1.500 REMARK 3 SIDE-CHAIN BOND (A**2) : 0.763 ; 1.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 1.213 ; 1.500 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1S02 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_1000176279. 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 (%): 37.21 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.96 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 -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 19.65000 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 37.70000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 36.45000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 37.70000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.65000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 36.45000 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 O HOH A 329 O HOH A 390 1.96 REMARK 500 O HOH A 315 O HOH A 316 2.13 REMARK 500 OE1 GLN A 185 O HOH A 378 2.16 REMARK 500 REMARK 500 REMARK: NULL 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 340 O HOH A 360 3554 2.14 REMARK 500 O HOH A 316 O HOH A 395 1655 2.18 REMARK 500 REMARK 500 REMARK: NULL 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 GLY A 34 N GLY A 34 CA 0.092 REMARK 500 GLU A 112 CB GLU A 112 CG 0.154 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 ALA A 73 N - CA - CB ANGL. DEV. = -8.7 DEGREES REMARK 500 GLU A 112 CA - CB - CG ANGL. DEV. = -13.2 DEGREES REMARK 500 ASP A 140 CB - CG - OD1 ANGL. DEV. = 8.6 DEGREES REMARK 500 ASP A 181 CB - CG - OD1 ANGL. DEV. = 7.0 DEGREES REMARK 500 ASP A 181 CB - CG - OD2 ANGL. DEV. = -5.7 DEGREES REMARK 500 ARG A 186 NE - CZ - NH2 ANGL. DEV. = -5.3 DEGREES REMARK 500 ASP A 259 CB - CG - OD1 ANGL. DEV. = 9.1 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 LYS A 12 30.38 70.64 REMARK 500 ASP A 32 -145.46 -154.80 REMARK 500 SER A 63 -15.74 93.55 REMARK 500 ALA A 73 33.92 -140.54 REMARK 500 ASN A 77 -147.65 -146.03 REMARK 500 VAL A 81 -166.08 -115.93 REMARK 500 SER A 159 70.33 -159.75 REMARK 500 ASN A 184 12.09 82.27 REMARK 500 LEU A 257 -102.42 -113.10 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 THE SULFATE ION HAS AN INTRAMOLECULAR INTERACTION WITH REMARK 600 ND1 HIS 238 AND HAS INTERMOLECULAR INTERACTIONS WITH REMARK 600 BACKBONE N TYR 104 AND N SER 105. 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 276 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLN A 2 OE1 REMARK 620 2 ASP A 41 OD1 154.3 REMARK 620 3 ASP A 41 OD2 155.2 50.4 REMARK 620 4 LEU A 75 O 76.0 92.3 110.1 REMARK 620 5 ASN A 77 OD1 79.9 77.3 123.0 90.1 REMARK 620 6 ILE A 79 O 93.4 92.3 84.7 163.7 75.6 REMARK 620 7 VAL A 81 O 79.9 122.7 76.6 86.4 159.8 104.2 REMARK 620 N 1 2 3 4 5 6 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 CA A 277 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLY A 169 O REMARK 620 2 TYR A 171 O 74.2 REMARK 620 3 VAL A 174 O 103.2 74.5 REMARK 620 4 GLU A 195 O 86.0 144.5 139.9 REMARK 620 5 ASP A 197 OD2 124.5 144.5 71.9 70.9 REMARK 620 6 HOH A 335 O 94.7 72.0 135.7 80.8 128.1 REMARK 620 N 1 2 3 4 5 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CAT REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 276 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 277 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 278 DBREF 1S02 A 1 275 UNP P00782 SUBT_BACAM 108 382 SEQADV 1S02 GLU A 19 UNP P00782 GLN 126 CONFLICT SEQADV 1S02 GLU A 271 UNP P00782 GLN 378 CONFLICT SEQRES 1 A 275 ALA GLN SER VAL PRO TYR GLY VAL SER GLN ILE LYS ALA SEQRES 2 A 275 PRO ALA LEU HIS SER GLU GLY TYR THR GLY SER ASN VAL SEQRES 3 A 275 LYS VAL ALA VAL ILE ASP SER GLY ILE ASP SER SER HIS SEQRES 4 A 275 PRO ASP LEU LYS VAL ALA GLY GLY ALA SER MET VAL PRO SEQRES 5 A 275 SER GLU THR ASN PRO PHE GLN ASP ASN ASN SER HIS GLY SEQRES 6 A 275 THR HIS VAL ALA GLY THR VAL ALA ALA LEU ASN ASN SER SEQRES 7 A 275 ILE GLY VAL LEU GLY VAL ALA PRO SER ALA SER LEU TYR SEQRES 8 A 275 ALA VAL LYS VAL LEU GLY ALA ASP GLY SER GLY GLN TYR SEQRES 9 A 275 SER TRP ILE ILE ASN GLY ILE GLU TRP ALA ILE ALA ASN SEQRES 10 A 275 ASN MET ASP VAL ILE ASN MET SER LEU GLY GLY PRO SER SEQRES 11 A 275 GLY SER ALA ALA LEU LYS ALA ALA VAL ASP LYS ALA VAL SEQRES 12 A 275 ALA SER GLY VAL VAL VAL VAL ALA ALA ALA GLY ASN GLU SEQRES 13 A 275 GLY THR SER GLY SER SER SER THR VAL GLY TYR PRO GLY SEQRES 14 A 275 LYS TYR PRO SER VAL ILE ALA VAL GLY ALA VAL ASP SER SEQRES 15 A 275 SER ASN GLN ARG ALA SER PHE SER SER VAL GLY PRO GLU SEQRES 16 A 275 LEU ASP VAL MET ALA PRO GLY VAL SER ILE GLN SER THR SEQRES 17 A 275 LEU PRO GLY ASN LYS TYR GLY ALA TYR ASN GLY THR SER SEQRES 18 A 275 MET ALA SER PRO HIS VAL ALA GLY ALA ALA ALA LEU ILE SEQRES 19 A 275 LEU SER LYS HIS PRO ASN TRP THR ASN THR GLN VAL ARG SEQRES 20 A 275 SER SER LEU GLU ASN THR THR THR LYS LEU GLY ASP SER SEQRES 21 A 275 PHE TYR TYR GLY LYS GLY LEU ILE ASN VAL GLU ALA ALA SEQRES 22 A 275 ALA GLN HET CA A 276 1 HET CA A 277 1 HET SO4 A 278 5 HETNAM CA CALCIUM ION HETNAM SO4 SULFATE ION FORMUL 2 CA 2(CA 2+) FORMUL 4 SO4 O4 S 2- FORMUL 5 HOH *118(H2 O) HELIX 1 A PRO A 5 GLN A 10 1 6 HELIX 2 B ALA A 13 GLY A 20 1 8 HELIX 3 C HIS A 64 ALA A 73 1 10 HELIX 4 D GLN A 103 ASN A 117 1 15 HELIX 5 E SER A 132 SER A 145 1 14 HELIX 6 F ALA A 223 PRO A 239 1 17 HELIX 7 G THR A 242 ASN A 252 1 11 HELIX 8 H ASN A 269 ALA A 274 1 6 SHEET 1 B1 7 ALA A 45 MET A 50 0 SHEET 2 B1 7 SER A 89 LYS A 94 1 O LEU A 90 N ALA A 45 SHEET 3 B1 7 LYS A 27 ASP A 32 1 N VAL A 28 O SER A 89 SHEET 4 B1 7 ASP A 120 MET A 124 1 N ASP A 120 O LYS A 27 SHEET 5 B1 7 VAL A 148 ALA A 152 1 N VAL A 148 O ASP A 120 SHEET 6 B1 7 ILE A 175 VAL A 180 1 N ILE A 175 O VAL A 149 SHEET 7 B1 7 ASP A 197 PRO A 201 1 N ASP A 197 O ALA A 176 SHEET 1 B2 2 ILE A 205 LEU A 209 0 SHEET 2 B2 2 LYS A 213 TYR A 217 -1 O TYR A 217 N ILE A 205 LINK OE1 GLN A 2 CA CA A 276 1555 1555 2.24 LINK OD1 ASP A 41 CA CA A 276 1555 1555 2.39 LINK OD2 ASP A 41 CA CA A 276 1555 1555 2.65 LINK O LEU A 75 CA CA A 276 1555 1555 2.29 LINK OD1 ASN A 77 CA CA A 276 1555 1555 2.39 LINK O ILE A 79 CA CA A 276 1555 1555 2.19 LINK O VAL A 81 CA CA A 276 1555 1555 2.30 LINK O GLY A 169 CA CA A 277 1555 1555 2.85 LINK O TYR A 171 CA CA A 277 1555 1555 2.88 LINK O VAL A 174 CA CA A 277 1555 1555 2.49 LINK O GLU A 195 CA CA A 277 1555 1555 3.37 LINK OD2 ASP A 197 CA CA A 277 1555 1555 2.93 LINK CA CA A 277 O HOH A 335 1555 1555 3.12 CISPEP 1 TYR A 167 PRO A 168 0 0.68 SITE 1 CAT 3 ASP A 32 HIS A 64 SER A 221 SITE 1 AC1 6 GLN A 2 ASP A 41 LEU A 75 ASN A 77 SITE 2 AC1 6 ILE A 79 VAL A 81 SITE 1 AC2 5 GLY A 169 TYR A 171 VAL A 174 GLU A 195 SITE 2 AC2 5 ASP A 197 SITE 1 AC3 7 GLN A 103 TYR A 104 SER A 105 HIS A 238 SITE 2 AC3 7 ASN A 240 TRP A 241 HOH A 342 CRYST1 39.300 72.900 75.400 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 0.025445 0.000000 0.000000 0.00000 SCALE2 0.000000 0.013717 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013263 0.00000