HEADER BETA-AMYLASE 08-JUN-93 1TML TITLE CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF A THERMOPHILIC TITLE 2 ENDOCELLULASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: ENDO-1,4-BETA-D-GLUCANASE; COMPND 3 CHAIN: A; COMPND 4 EC: 3.2.1.4; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: THERMOBIFIDA FUSCA; SOURCE 3 ORGANISM_TAXID: 2021 KEYWDS BETA-AMYLASE, ENDOCELLULASE,CATALYTIC DOMAIN EXPDTA X-RAY DIFFRACTION AUTHOR M.SPEZIO,D.B.WILSON,P.A.KARPLUS REVDAT 3 24-FEB-09 1TML 1 VERSN REVDAT 2 31-MAY-00 1TML 1 TITLE KEYWDS EXPDTA CRYST1 REVDAT 1 31-JAN-94 1TML 0 JRNL AUTH M.SPEZIO,D.B.WILSON,P.A.KARPLUS JRNL TITL CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF A JRNL TITL 2 THERMOPHILIC ENDOCELLULASE. JRNL REF BIOCHEMISTRY V. 32 9906 1993 JRNL REFN ISSN 0006-2960 JRNL PMID 8399160 JRNL DOI 10.1021/BI00089A006 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH M.SPEZIO,D.B.WILSON,P.A.KARPLUS REMARK 1 TITL CRYSTAL STRUCTURE OF THE CATALYTIC DOMAIN OF A REMARK 1 TITL 2 THERMOPHILIC ENDOCELLULASE REMARK 1 REF TO BE PUBLISHED REMARK 1 REFN REMARK 2 REMARK 2 RESOLUTION. 1.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.80 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) : 0.184 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 : 2619 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 5 REMARK 3 SOLVENT ATOMS : 219 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) : 0.014 REMARK 3 BOND ANGLES (DEGREES) : 2.80 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: RESIDUES ASN 1 AND ASP 2 ARE NOT REMARK 3 WELL ORDERED AND HAVE VERY WEAK ELECTRON DENSITY. RESIDUE TRP REMARK 3 162, IN THE ACTIVE SITE CLEFT, IS WELL ORDERED AND HAS STRONG REMARK 3 DENSITY EVEN THOUGH ITS MAIN CHAIN TORSION ANGLES ARE OUTSIDE REMARK 3 THE FAVORABLE REGIONS OF A RAMACHANDRAN PLOT. REMARK 4 REMARK 4 1TML COMPLIES WITH FORMAT V. 3.15, 01-DEC-08 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. 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: X-PLOR REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 36.62 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 1.94 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,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 32.97066 REMARK 290 SMTRY3 2 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 400 REMARK 400 COMPOUND REMARK 400 D1 AND F1 OF THE HELIX ARE SMALL AND ARE NOT EXACTLY REMARK 400 CONSERVED BETWEEN THIS STRUCTURE AND CELLOBIOHYDROLASE II. 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 HIS A 163 NE2 HIS A 163 CD2 -0.075 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 TRP A 16 CD1 - CG - CD2 ANGL. DEV. = 7.0 DEGREES REMARK 500 TRP A 16 CE2 - CD2 - CG ANGL. DEV. = -5.7 DEGREES REMARK 500 ARG A 18 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 ARG A 18 NE - CZ - NH2 ANGL. DEV. = -5.5 DEGREES REMARK 500 ARG A 30 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 TRP A 41 CD1 - CG - CD2 ANGL. DEV. = 5.4 DEGREES REMARK 500 TRP A 41 CE2 - CD2 - CG ANGL. DEV. = -5.1 DEGREES REMARK 500 ARG A 78 NE - CZ - NH1 ANGL. DEV. = 3.0 DEGREES REMARK 500 TRP A 97 CD1 - CG - CD2 ANGL. DEV. = 6.8 DEGREES REMARK 500 TRP A 97 CG - CD1 - NE1 ANGL. DEV. = -6.1 DEGREES REMARK 500 TRP A 97 CE2 - CD2 - CG ANGL. DEV. = -5.0 DEGREES REMARK 500 ARG A 108 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 ARG A 152 NE - CZ - NH1 ANGL. DEV. = 3.6 DEGREES REMARK 500 ARG A 152 NE - CZ - NH2 ANGL. DEV. = -4.0 DEGREES REMARK 500 TRP A 162 CE2 - CD2 - CG ANGL. DEV. = -5.2 DEGREES REMARK 500 TRP A 171 CD1 - CG - CD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 TRP A 171 CE2 - CD2 - CG ANGL. DEV. = -5.6 DEGREES REMARK 500 TRP A 193 CD1 - CG - CD2 ANGL. DEV. = 6.5 DEGREES REMARK 500 TRP A 193 CE2 - CD2 - CG ANGL. DEV. = -5.5 DEGREES REMARK 500 TRP A 231 CD1 - CG - CD2 ANGL. DEV. = 6.3 DEGREES REMARK 500 TRP A 231 CE2 - CD2 - CG ANGL. DEV. = -5.5 DEGREES REMARK 500 ARG A 237 NE - CZ - NH1 ANGL. DEV. = 4.0 DEGREES REMARK 500 THR A 247 N - CA - CB ANGL. DEV. = -15.5 DEGREES REMARK 500 TRP A 257 CD1 - CG - CD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 TRP A 257 CE2 - CD2 - CG ANGL. DEV. = -4.8 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 ASP A 2 -56.33 60.40 REMARK 500 ILE A 33 -55.19 -126.80 REMARK 500 ASN A 74 14.88 -148.38 REMARK 500 HIS A 83 55.35 25.08 REMARK 500 GLU A 115 72.46 51.67 REMARK 500 TRP A 162 -105.28 -146.47 REMARK 500 ASN A 190 -166.31 -116.52 REMARK 500 ALA A 227 75.92 -106.92 REMARK 500 SER A 243 119.28 -35.78 REMARK 500 REMARK 500 REMARK: NULL REMARK 700 REMARK 700 SHEET REMARK 700 THE SHEET PRESENTED AS *COR* ON SHEET RECORDS BELOW IS REMARK 700 ACTUALLY AN EIGHT STRANDED BETA-BARREL. THIS IS REMARK 700 REPRESENTED BY A NINE-STRANDED SHEET IN WHICH THE FIRST REMARK 700 AND LAST STRANDS ARE IDENTICAL. IN ADDITION, STRAND 1 IS REMARK 700 BIFURCATED THUS THE BARREL IS REPRESENTED BY TWO SETS OF REMARK 700 SHEET RECORDS *COR* AND *BOR* WHERE STRANDS 2, 3, 4, 5, 6, REMARK 700 7, AND 8 ARE IDENTICAL. 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 360 REMARK 999 REMARK 999 SEQUENCE REMARK 999 SEQUENCE ADVISORY NOTICE: REMARK 999 DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. REMARK 999 REMARK 999 SWISS-PROT ENTRY NAME: GUN2_THEFU REMARK 999 REMARK 999 SWISS-PROT RESIDUE PDB ATOM RECORDS REMARK 999 NAME NUMBER NAME CHAIN SEQ/INSERT CODE REMARK 999 SER 162 TRP 162 REMARK 999 ASP 163 HIS 163 REMARK 999 GLN 166 ALA 166 DBREF 1TML A 1 286 UNP P26222 GUN2_THEFU 32 317 SEQRES 1 A 286 ASN ASP SER PRO PHE TYR VAL ASN PRO ASN MET SER SER SEQRES 2 A 286 ALA GLU TRP VAL ARG ASN ASN PRO ASN ASP PRO ARG THR SEQRES 3 A 286 PRO VAL ILE ARG ASP ARG ILE ALA SER VAL PRO GLN GLY SEQRES 4 A 286 THR TRP PHE ALA HIS HIS ASN PRO GLY GLN ILE THR GLY SEQRES 5 A 286 GLN VAL ASP ALA LEU MET SER ALA ALA GLN ALA ALA GLY SEQRES 6 A 286 LYS ILE PRO ILE LEU VAL VAL TYR ASN ALA PRO GLY ARG SEQRES 7 A 286 ASP CYS GLY ASN HIS SER SER GLY GLY ALA PRO SER HIS SEQRES 8 A 286 SER ALA TYR ARG SER TRP ILE ASP GLU PHE ALA ALA GLY SEQRES 9 A 286 LEU LYS ASN ARG PRO ALA TYR ILE ILE VAL GLU PRO ASP SEQRES 10 A 286 LEU ILE SER LEU MET SER SER CYS MET GLN HIS VAL GLN SEQRES 11 A 286 GLN GLU VAL LEU GLU THR MET ALA TYR ALA GLY LYS ALA SEQRES 12 A 286 LEU LYS ALA GLY SER SER GLN ALA ARG ILE TYR PHE ASP SEQRES 13 A 286 ALA GLY HIS SER ALA TRP HIS SER PRO ALA GLN MET ALA SEQRES 14 A 286 SER TRP LEU GLN GLN ALA ASP ILE SER ASN SER ALA HIS SEQRES 15 A 286 GLY ILE ALA THR ASN THR SER ASN TYR ARG TRP THR ALA SEQRES 16 A 286 ASP GLU VAL ALA TYR ALA LYS ALA VAL LEU SER ALA ILE SEQRES 17 A 286 GLY ASN PRO SER LEU ARG ALA VAL ILE ASP THR SER ARG SEQRES 18 A 286 ASN GLY ASN GLY PRO ALA GLY ASN GLU TRP CYS ASP PRO SEQRES 19 A 286 SER GLY ARG ALA ILE GLY THR PRO SER THR THR ASN THR SEQRES 20 A 286 GLY ASP PRO MET ILE ASP ALA PHE LEU TRP ILE LYS LEU SEQRES 21 A 286 PRO GLY GLU ALA ASP GLY CYS ILE ALA GLY ALA GLY GLN SEQRES 22 A 286 PHE VAL PRO GLN ALA ALA TYR GLU MET ALA ILE ALA ALA HET SO4 A 360 5 HETNAM SO4 SULFATE ION FORMUL 2 SO4 O4 S 2- FORMUL 3 HOH *73(H2 O) HELIX 1 A SER A 12 ASN A 19 1 8 HELIX 2 B THR A 26 ARG A 32 1 7 HELIX 3 C PRO A 47 ALA A 64 1 18 HELIX 4 D HIS A 91 ALA A 103 1 13 HELIX 5 E GLN A 127 GLY A 147 1 21 HELIX 6 F PRO A 165 GLN A 174 1 10 HELIX 7 G THR A 194 ILE A 208 1 15 HELIX 8 H PRO A 276 ILE A 284 1 9 HELIX 9 D1 LEU A 118 MET A 122 1 5 HELIX 10 F1 ILE A 177 SER A 180 1 4 SHEET 1 COR 9 PRO A 4 TYR A 6 0 SHEET 2 COR 9 ILE A 67 VAL A 72 1 SHEET 3 COR 9 TYR A 111 VAL A 114 1 SHEET 4 COR 9 ARG A 152 ASP A 156 1 SHEET 5 COR 9 GLY A 183 THR A 186 1 SHEET 6 COR 9 ARG A 214 ASP A 218 1 SHEET 7 COR 9 ILE A 252 TRP A 257 1 SHEET 8 COR 9 SER A 243 THR A 245 -1 SHEET 9 COR 9 PRO A 4 TYR A 6 -1 SHEET 1 BOR 9 GLN A 38 PHE A 42 0 SHEET 2 BOR 9 ILE A 67 VAL A 72 1 SHEET 3 BOR 9 TYR A 111 VAL A 114 1 SHEET 4 BOR 9 ARG A 152 ASP A 156 1 SHEET 5 BOR 9 GLY A 183 THR A 186 1 SHEET 6 BOR 9 ARG A 214 ASP A 218 1 SHEET 7 BOR 9 ILE A 252 TRP A 257 1 SHEET 8 BOR 9 SER A 243 THR A 245 -1 SHEET 9 BOR 9 GLN A 38 PHE A 42 -1 SSBOND 1 CYS A 80 CYS A 125 1555 1555 2.01 SSBOND 2 CYS A 232 CYS A 267 1555 1555 2.01 SITE 1 AC1 10 PRO A 76 GLY A 77 ARG A 78 ASP A 79 SITE 2 AC1 10 CYS A 80 GLY A 81 ASN A 82 HIS A 83 SITE 3 AC1 10 SER A 84 SER A 85 CRYST1 43.350 65.940 43.410 90.00 107.69 90.00 P 1 21 1 2 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 0.023068 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015165 0.000000 0.00000 SCALE3 0.000000 0.000000 0.023036 0.00000