HEADER OXIDOREDUCTASE 01-JUL-09 3I43 TITLE ESCHERICHIA COLI THIOL PEROXIDASE (TPX) WILD TYPE DISULFIDE FORM COMPND MOL_ID: 1; COMPND 2 MOLECULE: THIOL PEROXIDASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: SCAVENGASE P20; COMPND 5 EC: 1.11.1.15; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI K-12; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K-12 (XL-1 BLUE); SOURCE 5 GENE: B1324, JW1317, TPX, YZZJ; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: XL-1 BLUE; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PPROK1 KEYWDS OXIDOREDUCTASE, TPX, PEROXIREDOXIN, PEROXIDASE, ANTIOXIDANT EXPDTA X-RAY DIFFRACTION AUTHOR A.HALL,P.A.KARPLUS REVDAT 3 06-SEP-23 3I43 1 REMARK REVDAT 2 03-NOV-09 3I43 1 JRNL REVDAT 1 20-OCT-09 3I43 0 JRNL AUTH A.HALL,B.SANKARAN,L.B.POOLE,P.A.KARPLUS JRNL TITL STRUCTURAL CHANGES COMMON TO CATALYSIS IN THE TPX JRNL TITL 2 PEROXIREDOXIN SUBFAMILY. JRNL REF J.MOL.BIOL. V. 393 867 2009 JRNL REFN ISSN 0022-2836 JRNL PMID 19699750 JRNL DOI 10.1016/J.JMB.2009.08.040 REMARK 2 REMARK 2 RESOLUTION. 2.80 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC 5.5.0046 REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 REFINEMENT TARGET : MAXIMUM LIKELIHOOD REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.80 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 37.36 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 COMPLETENESS FOR RANGE (%) : 96.9 REMARK 3 NUMBER OF REFLECTIONS : 7832 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 + TEST SET) : 0.200 REMARK 3 R VALUE (WORKING SET) : 0.198 REMARK 3 FREE R VALUE : 0.219 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 9.800 REMARK 3 FREE R VALUE TEST SET COUNT : 849 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 20 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.80 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.87 REMARK 3 REFLECTION IN BIN (WORKING SET) : 543 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.87 REMARK 3 BIN R VALUE (WORKING SET) : 0.3080 REMARK 3 BIN FREE R VALUE SET COUNT : 68 REMARK 3 BIN FREE R VALUE : 0.3180 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2494 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 26 REMARK 3 SOLVENT ATOMS : 602 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 22.84 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.98000 REMARK 3 B22 (A**2) : -1.70000 REMARK 3 B33 (A**2) : 0.72000 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.366 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.406 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): 0.000 REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): 0.005 REMARK 3 REMARK 3 CORRELATION COEFFICIENTS. REMARK 3 CORRELATION COEFFICIENT FO-FC : 0.926 REMARK 3 CORRELATION COEFFICIENT FO-FC FREE : 0.910 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES COUNT RMS WEIGHT REMARK 3 BOND LENGTHS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 BOND LENGTHS OTHERS (A): NULL ; NULL ; NULL REMARK 3 BOND ANGLES REFINED ATOMS (DEGREES): NULL ; NULL ; NULL REMARK 3 BOND ANGLES OTHERS (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 1 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 2 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 3 (DEGREES): NULL ; NULL ; NULL REMARK 3 TORSION ANGLES, PERIOD 4 (DEGREES): NULL ; NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINTS (A**3): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 GENERAL PLANES OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED CONTACTS OTHERS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 NON-BONDED TORSION OTHERS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 H-BOND (X...Y) OTHERS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 POTENTIAL METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY VDW OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY H-BOND OTHERS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION REFINED ATOMS (A): NULL ; NULL ; NULL REMARK 3 SYMMETRY METAL-ION OTHERS (A): NULL ; NULL ; NULL REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 MAIN-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 MAIN-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN BOND OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SIDE-CHAIN ANGLE OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B REFINED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 LONG RANGE B OTHER ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 ANISOTROPIC THERMAL FACTOR RESTRAINTS. COUNT RMS WEIGHT REMARK 3 RIGID-BOND RESTRAINTS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; FREE ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 SPHERICITY; BONDED ATOMS (A**2): NULL ; NULL ; NULL REMARK 3 REMARK 3 NCS RESTRAINTS STATISTICS REMARK 3 NUMBER OF DIFFERENT NCS GROUPS : NULL REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : MASK REMARK 3 PARAMETERS FOR MASK CALCULATION REMARK 3 VDW PROBE RADIUS : 1.40 REMARK 3 ION PROBE RADIUS : 0.80 REMARK 3 SHRINKAGE RADIUS : 0.80 REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: THIS IS NOT A STAND ALONE STRUCTURE, REMARK 3 BUT IS DERIVED FROM THE HIGHER RESOLUTION STRUCTURE 3HVS BY A REMARK 3 SIMPLE RIGID BODY REFINEMENT COMBINED WITH MANUAL ADJUSTMENT AND REMARK 3 GEOMETRY OPTIMIZATION OF ONLY THE CATALYTIC RESIDUES CYS61 AND REMARK 3 CYS95. THIS DATA SET IS AT MUCH LOWER RESOLUTION AND WAS ONLY REMARK 3 USED TO CONFIRM THE PRESENCE OF AN INTACT DISULFIDE. THE REMARK 3 CONFORMATION OF CYS61 AND CYS95 FROM THIS STRUCTURE HAS BEEN REMARK 3 ADDED AS AN ALTERNATE CONFORMATION WITH ZERO OCCUPANCY TO THE REMARK 3 HIGHER RESOLUTION STRUCTURE 3HVS AND WE RECOMMEND USE OF THAT REMARK 3 STRUCTURE RATHER THAN THIS ONE. REMARK 4 REMARK 4 3I43 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 14-JUL-09. REMARK 100 THE DEPOSITION ID IS D_1000053938. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 28-NOV-08 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.2 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 RU300 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.542 REMARK 200 MONOCHROMATOR : MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IV REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 7832 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.800 REMARK 200 RESOLUTION RANGE LOW (A) : 37.360 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.9 REMARK 200 DATA REDUNDANCY : 2.900 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.10500 REMARK 200 FOR THE DATA SET : 7.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.80 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.95 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.0 REMARK 200 DATA REDUNDANCY IN SHELL : 2.90 REMARK 200 R MERGE FOR SHELL (I) : NULL REMARK 200 R SYM FOR SHELL (I) : 0.36800 REMARK 200 FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: DIFFERENCE FOURIER BASED REMARK 200 ON ISOMORPHOUS STARTING MODEL REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 3HVS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 49.15 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.42 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 20% (W/V) PEG-8000, 0.1 M PHOSPHATE REMARK 280 CITRATE, 0.2 M SODIUM CHLORIDE, PH 4.2, VAPOR DIFFUSION, HANGING REMARK 280 DROP, TEMPERATURE 277K 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 19.41500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 68.97500 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 32.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 68.97500 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 19.41500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 32.00000 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: DIMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2060 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 14180 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -2.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B 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: 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 ASP B 124 CB - CG - OD2 ANGL. DEV. = 6.5 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 VAL A 5 -164.83 -121.41 REMARK 500 ASN A 16 -139.36 62.74 REMARK 500 ASN A 111 53.13 -142.89 REMARK 500 ASN B 16 -138.54 57.81 REMARK 500 ASN B 111 45.61 -145.70 REMARK 500 REMARK 500 REMARK: NULL REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT A 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CIT B 169 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3HVS RELATED DB: PDB REMARK 900 E. COLI WILD TYPE DISULFIDE FORM AT 1.8 A RESOLUTION REMARK 900 RELATED ID: 3HVV RELATED DB: PDB REMARK 900 E. COLI C61S MUTANT AT 1.75 A RESOLUTION REMARK 900 RELATED ID: 3HVX RELATED DB: PDB REMARK 900 E. COLI TPX C82S, C95S MUTANT AT 2.21 A RESOLUTION REMARK 900 RELATED ID: 1QXH RELATED DB: PDB REMARK 900 E. COLI WILD TYPE DISULFIDE FORM AT 2.2 A RESOLUTION DBREF 3I43 A 2 168 UNP P0A862 TPX_ECOLI 2 168 DBREF 3I43 B 2 168 UNP P0A862 TPX_ECOLI 2 168 SEQRES 1 A 167 SER GLN THR VAL HIS PHE GLN GLY ASN PRO VAL THR VAL SEQRES 2 A 167 ALA ASN SER ILE PRO GLN ALA GLY SER LYS ALA GLN THR SEQRES 3 A 167 PHE THR LEU VAL ALA LYS ASP LEU SER ASP VAL THR LEU SEQRES 4 A 167 GLY GLN PHE ALA GLY LYS ARG LYS VAL LEU ASN ILE PHE SEQRES 5 A 167 PRO SER ILE ASP THR GLY VAL CYS ALA ALA SER VAL ARG SEQRES 6 A 167 LYS PHE ASN GLN LEU ALA THR GLU ILE ASP ASN THR VAL SEQRES 7 A 167 VAL LEU CYS ILE SER ALA ASP LEU PRO PHE ALA GLN SER SEQRES 8 A 167 ARG PHE CYS GLY ALA GLU GLY LEU ASN ASN VAL ILE THR SEQRES 9 A 167 LEU SER THR PHE ARG ASN ALA GLU PHE LEU GLN ALA TYR SEQRES 10 A 167 GLY VAL ALA ILE ALA ASP GLY PRO LEU LYS GLY LEU ALA SEQRES 11 A 167 ALA ARG ALA VAL VAL VAL ILE ASP GLU ASN ASP ASN VAL SEQRES 12 A 167 ILE PHE SER GLN LEU VAL ASP GLU ILE THR THR GLU PRO SEQRES 13 A 167 ASP TYR GLU ALA ALA LEU ALA VAL LEU LYS ALA SEQRES 1 B 167 SER GLN THR VAL HIS PHE GLN GLY ASN PRO VAL THR VAL SEQRES 2 B 167 ALA ASN SER ILE PRO GLN ALA GLY SER LYS ALA GLN THR SEQRES 3 B 167 PHE THR LEU VAL ALA LYS ASP LEU SER ASP VAL THR LEU SEQRES 4 B 167 GLY GLN PHE ALA GLY LYS ARG LYS VAL LEU ASN ILE PHE SEQRES 5 B 167 PRO SER ILE ASP THR GLY VAL CYS ALA ALA SER VAL ARG SEQRES 6 B 167 LYS PHE ASN GLN LEU ALA THR GLU ILE ASP ASN THR VAL SEQRES 7 B 167 VAL LEU CYS ILE SER ALA ASP LEU PRO PHE ALA GLN SER SEQRES 8 B 167 ARG PHE CYS GLY ALA GLU GLY LEU ASN ASN VAL ILE THR SEQRES 9 B 167 LEU SER THR PHE ARG ASN ALA GLU PHE LEU GLN ALA TYR SEQRES 10 B 167 GLY VAL ALA ILE ALA ASP GLY PRO LEU LYS GLY LEU ALA SEQRES 11 B 167 ALA ARG ALA VAL VAL VAL ILE ASP GLU ASN ASP ASN VAL SEQRES 12 B 167 ILE PHE SER GLN LEU VAL ASP GLU ILE THR THR GLU PRO SEQRES 13 B 167 ASP TYR GLU ALA ALA LEU ALA VAL LEU LYS ALA HET CIT A 1 13 HET CIT B 169 13 HETNAM CIT CITRIC ACID FORMUL 3 CIT 2(C6 H8 O7) FORMUL 5 HOH *602(H2 O) HELIX 1 1 GLY A 41 ALA A 44 5 4 HELIX 2 2 ALA A 62 GLU A 74 1 13 HELIX 3 3 LEU A 87 SER A 92 1 6 HELIX 4 4 ALA A 112 TYR A 118 1 7 HELIX 5 5 ASP A 158 ALA A 168 1 11 HELIX 6 6 GLY B 41 ALA B 44 5 4 HELIX 7 7 ALA B 62 ILE B 75 1 14 HELIX 8 8 LEU B 87 SER B 92 1 6 HELIX 9 9 ALA B 112 TYR B 118 1 7 HELIX 10 10 ASP B 158 ALA B 168 1 11 SHEET 1 A 2 GLN A 3 PHE A 7 0 SHEET 2 A 2 ASN A 10 VAL A 14 -1 O ASN A 10 N PHE A 7 SHEET 1 B 2 THR A 29 VAL A 31 0 SHEET 2 B 2 ASP A 37 THR A 39 -1 O VAL A 38 N LEU A 30 SHEET 1 C 5 VAL A 103 SER A 107 0 SHEET 2 C 5 THR A 78 SER A 84 1 N CYS A 82 O ILE A 104 SHEET 3 C 5 ARG A 47 ILE A 52 1 N VAL A 49 O LEU A 81 SHEET 4 C 5 ALA A 134 ILE A 138 -1 O VAL A 136 N LEU A 50 SHEET 5 C 5 VAL A 144 LEU A 149 -1 O PHE A 146 N VAL A 137 SHEET 1 D 2 GLN B 3 PHE B 7 0 SHEET 2 D 2 ASN B 10 VAL B 14 -1 O ASN B 10 N PHE B 7 SHEET 1 E 2 THR B 29 VAL B 31 0 SHEET 2 E 2 ASP B 37 THR B 39 -1 O VAL B 38 N LEU B 30 SHEET 1 F 5 VAL B 103 SER B 107 0 SHEET 2 F 5 THR B 78 SER B 84 1 N CYS B 82 O ILE B 104 SHEET 3 F 5 ARG B 47 ILE B 52 1 N ASN B 51 O LEU B 81 SHEET 4 F 5 ALA B 134 ILE B 138 -1 O VAL B 136 N LEU B 50 SHEET 5 F 5 VAL B 144 LEU B 149 -1 O PHE B 146 N VAL B 137 SSBOND 1 CYS A 61 CYS A 95 1555 1555 2.08 SSBOND 2 CYS B 61 CYS B 95 1555 1555 2.25 SITE 1 AC1 15 SER A 64 VAL A 65 ARG A 133 ILE A 153 SITE 2 AC1 15 THR A 154 THR A 155 GLU A 156 PRO A 157 SITE 3 AC1 15 TYR A 159 HOH A 217 HOH A 253 HOH A 281 SITE 4 AC1 15 HOH A 346 HOH A 406 HOH A 590 SITE 1 AC2 13 SER B 64 VAL B 65 ARG B 133 ILE B 153 SITE 2 AC2 13 THR B 154 THR B 155 GLU B 156 PRO B 157 SITE 3 AC2 13 TYR B 159 HOH B 253 HOH B 262 HOH B 451 SITE 4 AC2 13 HOH B 497 CRYST1 38.830 64.000 137.950 90.00 90.00 90.00 P 21 21 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 0.025753 0.000000 0.000000 0.00000 SCALE2 0.000000 0.015625 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007249 0.00000