HEADER ISOMERASE 05-MAY-06 2DP3 TITLE CRYSTAL STRUCTURE OF A DOUBLE MUTANT (C202A/A198V) OF TRIOSEPHOSPHATE TITLE 2 ISOMERASE FROM GIARDIA LAMBLIA COMPND MOL_ID: 1; COMPND 2 MOLECULE: TRIOSEPHOSPHATE ISOMERASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: TIM, TRIOSE-PHOSPHATE ISOMERASE; COMPND 5 EC: 5.3.1.1; COMPND 6 ENGINEERED: YES; COMPND 7 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: GIARDIA INTESTINALIS; SOURCE 3 ORGANISM_TAXID: 5741; SOURCE 4 STRAIN: WB STRAIN; SOURCE 5 GENE: GLTIM; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3)PLYS; SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET3A KEYWDS TRIOSEPHOSPHATE ISOMERASE, GIARDIA, ENZYME, ALPHA/BETA BARREL, KEYWDS 2 ISOMERASE EXPDTA X-RAY DIFFRACTION AUTHOR A.DIAZ,H.REYES-VIVAS,G.LOPEZ-VELAZQUEZ REVDAT 3 13-JUL-11 2DP3 1 VERSN REVDAT 2 24-FEB-09 2DP3 1 VERSN REVDAT 1 02-JAN-07 2DP3 0 JRNL AUTH H.REYES-VIVAS,A.DIAZ,J.PEON,G.MENDOZA-HERNANDEZ, JRNL AUTH 2 G.HERNANDEZ-ALCANTARA,I.DE LA MORA-DE LA MORA, JRNL AUTH 3 S.ENRIQUEZ-FLORES,L.DOMINGUEZ-RAMIREZ,G.LOPEZ-VELAZQUEZ JRNL TITL DISULFIDE BRIDGES IN THE MESOPHILIC TRIOSEPHOSPHATE JRNL TITL 2 ISOMERASE FROM GIARDIA LAMBLIA ARE RELATED TO JRNL TITL 3 OLIGOMERIZATION AND ACTIVITY JRNL REF J.MOL.BIOL. V. 365 752 2007 JRNL REFN ISSN 0022-2836 JRNL PMID 17095008 JRNL DOI 10.1016/J.JMB.2006.10.053 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH G.LOPEZ-VELAZQUEZ,D.MOLINA-ORTIZ,N.CABRERA,J.PEON-PERALTA, REMARK 1 AUTH 2 H.REYES-VIVAS REMARK 1 TITL AN UNUSUAL TRIOSEPHOSPHATE ISOMERASE FROM THE EARLY REMARK 1 TITL 2 DIVERGENT EUKARYOTE GIARDIA LAMBLIA REMARK 1 REF PROTEINS V. 55 824 2004 REMARK 1 REFN ISSN 0887-3585 REMARK 1 PMID 15146481 REMARK 1 DOI 10.1002/PROT.20097 REMARK 2 REMARK 2 RESOLUTION. 2.10 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 28.65 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) (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 18608 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) : 0.175 REMARK 3 FREE R VALUE : 0.181 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 955 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) : 2.10 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.23 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 98.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.1710 REMARK 3 BIN FREE R VALUE : 0.1660 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 BIN FREE R VALUE TEST SET COUNT : 340 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.009 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1939 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 20 REMARK 3 SOLVENT ATOMS : 303 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 14.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : NULL REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -3.05000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 1.07000 REMARK 3 B13 (A**2) : 1.98000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.20 REMARK 3 ESD FROM SIGMAA (A) : 0.09 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) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 2.40 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 22.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.74 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 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 2DP3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 15-MAY-06. REMARK 100 THE RCSB ID CODE IS RCSB025676. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-JUN-04 REMARK 200 TEMPERATURE (KELVIN) : 113 REMARK 200 PH : 7.4 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 RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : YALE MIRRORS REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : CRYSTALCLEAR (MSC/RIGAKU) REMARK 200 DATA SCALING SOFTWARE : MOSFLM REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18609 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 28.650 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 94.1 REMARK 200 DATA REDUNDANCY : 2.100 REMARK 200 R MERGE (I) : 0.07100 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) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.23 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.6 REMARK 200 DATA REDUNDANCY IN SHELL : 2.00 REMARK 200 R MERGE FOR SHELL (I) : 0.06500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 8.100 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 1TCD, 1LYX, 1M6J REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.38 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.96 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 5MICROL OF C202A (13MG/ML) DISSOLVED REMARK 280 IN 100MM TRIETHANOLAMINE, 10MM EDTA, MIXED WITH 5MICROL OF 2M REMARK 280 AMMONIUM SULFATE,5% ISOPROPANOL, PH 7.4, VAPOR DIFFUSION, SITTING REMARK 280 DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z REMARK 290 3555 -X,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z+1/2 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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 27.68550 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 50.22150 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 59.39800 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 27.68550 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 50.22150 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 59.39800 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 27.68550 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 50.22150 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 59.39800 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 27.68550 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 50.22150 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 59.39800 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 300 REMARK: THE SECOND PART OF THE BIOLOGICAL ASSEMBLY IS GENERATED BY REMARK 300 THE TWO FOLD AXIS: 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 4440 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19520 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -118.0 KCAL/MOL 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 350 BIOMT1 2 -1.000000 0.000000 0.000000 -55.37100 REMARK 350 BIOMT2 2 0.000000 -1.000000 0.000000 -100.44300 REMARK 350 BIOMT3 2 0.000000 0.000000 1.000000 0.00000 REMARK 465 REMARK 465 MISSING RESIDUES REMARK 465 THE FOLLOWING RESIDUES WERE NOT LOCATED IN THE REMARK 465 EXPERIMENT. (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN REMARK 465 IDENTIFIER; SSSEQ=SEQUENCE NUMBER; I=INSERTION CODE.) REMARK 465 REMARK 465 M RES C SSSEQI REMARK 465 MET A 1 REMARK 465 THR A 257 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 ALA A 3 -144.57 -111.63 REMARK 500 LYS A 13 -151.36 61.11 REMARK 500 SER A 158 45.43 -52.90 REMARK 500 VAL A 201 -77.93 -118.68 REMARK 500 ALA A 202 140.01 -174.22 REMARK 500 REMARK 500 REMARK: NULL REMARK 525 REMARK 525 SOLVENT REMARK 525 REMARK 525 THE SOLVENT MOLECULES HAVE CHAIN IDENTIFIERS THAT REMARK 525 INDICATE THE POLYMER CHAIN WITH WHICH THEY ARE MOST REMARK 525 CLOSELY ASSOCIATED. THE REMARK LISTS ALL THE SOLVENT REMARK 525 MOLECULES WHICH ARE MORE THAN 5A AWAY FROM THE REMARK 525 NEAREST POLYMER CHAIN (M = MODEL NUMBER; REMARK 525 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE REMARK 525 NUMBER; I=INSERTION CODE): REMARK 525 REMARK 525 M RES CSSEQI REMARK 525 HOH A1099 DISTANCE = 5.63 ANGSTROMS REMARK 525 HOH A1149 DISTANCE = 5.27 ANGSTROMS 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 900 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 901 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 902 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 903 DBREF 2DP3 A 1 257 UNP P36186 TPI1_GIALA 1 257 SEQADV 2DP3 VAL A 198 UNP P36186 ALA 198 ENGINEERED SEQADV 2DP3 ALA A 202 UNP P36186 CYS 202 ENGINEERED SEQRES 1 A 257 MET PRO ALA ARG ARG PRO PHE ILE GLY GLY ASN PHE LYS SEQRES 2 A 257 CYS ASN GLY SER LEU ASP PHE ILE LYS SER HIS VAL ALA SEQRES 3 A 257 ALA ILE ALA ALA HIS LYS ILE PRO ASP SER VAL ASP VAL SEQRES 4 A 257 VAL ILE ALA PRO SER ALA VAL HIS LEU SER THR ALA ILE SEQRES 5 A 257 ALA ALA ASN THR SER LYS GLN LEU ARG ILE ALA ALA GLN SEQRES 6 A 257 ASN VAL TYR LEU GLU GLY ASN GLY ALA TRP THR GLY GLU SEQRES 7 A 257 THR SER VAL GLU MET LEU GLN ASP MET GLY LEU LYS HIS SEQRES 8 A 257 VAL ILE VAL GLY HIS SER GLU ARG ARG ARG ILE MET GLY SEQRES 9 A 257 GLU THR ASP GLU GLN SER ALA LYS LYS ALA LYS ARG ALA SEQRES 10 A 257 LEU GLU LYS GLY MET THR VAL ILE PHE CYS VAL GLY GLU SEQRES 11 A 257 THR LEU ASP GLU ARG LYS ALA ASN ARG THR MET GLU VAL SEQRES 12 A 257 ASN ILE ALA GLN LEU GLU ALA LEU GLY LYS GLU LEU GLY SEQRES 13 A 257 GLU SER LYS MET LEU TRP LYS GLU VAL VAL ILE ALA TYR SEQRES 14 A 257 GLU PRO VAL TRP SER ILE GLY THR GLY VAL VAL ALA THR SEQRES 15 A 257 PRO GLU GLN ALA GLU GLU VAL HIS VAL GLY LEU ARG LYS SEQRES 16 A 257 TRP PHE VAL GLU LYS VAL ALA ALA GLU GLY ALA GLN HIS SEQRES 17 A 257 ILE ARG ILE ILE TYR GLY GLY SER ALA ASN GLY SER ASN SEQRES 18 A 257 CYS GLU LYS LEU GLY GLN CYS PRO ASN ILE ASP GLY PHE SEQRES 19 A 257 LEU VAL GLY GLY ALA SER LEU LYS PRO GLU PHE MET THR SEQRES 20 A 257 MET ILE ASP ILE LEU THR LYS THR ARG THR HET SO4 A 900 5 HET SO4 A 901 5 HET SO4 A 902 5 HET SO4 A 903 5 HETNAM SO4 SULFATE ION FORMUL 2 SO4 4(O4 S 2-) FORMUL 6 HOH *303(H2 O) HELIX 1 1 SER A 17 ALA A 30 1 14 HELIX 2 2 SER A 44 VAL A 46 5 3 HELIX 3 3 HIS A 47 ASN A 55 1 9 HELIX 4 4 SER A 80 MET A 87 1 8 HELIX 5 5 HIS A 96 ILE A 102 1 7 HELIX 6 6 THR A 106 LYS A 120 1 15 HELIX 7 7 THR A 131 ALA A 137 1 7 HELIX 8 8 ARG A 139 GLY A 156 1 18 HELIX 9 9 SER A 158 LYS A 163 5 6 HELIX 10 10 PRO A 171 ILE A 175 5 5 HELIX 11 11 THR A 182 VAL A 201 1 20 HELIX 12 12 ALA A 202 ILE A 209 1 8 HELIX 13 13 ASN A 221 GLN A 227 1 7 HELIX 14 14 GLY A 237 LYS A 242 5 6 HELIX 15 15 PRO A 243 ARG A 256 1 14 SHEET 1 A 9 PHE A 7 ASN A 11 0 SHEET 2 A 9 ASP A 38 ALA A 42 1 O ALA A 42 N GLY A 10 SHEET 3 A 9 ARG A 61 ALA A 64 1 O ALA A 63 N ILE A 41 SHEET 4 A 9 HIS A 91 VAL A 94 1 O ILE A 93 N ALA A 64 SHEET 5 A 9 THR A 123 VAL A 128 1 O ILE A 125 N VAL A 94 SHEET 6 A 9 VAL A 165 TYR A 169 1 O VAL A 166 N VAL A 124 SHEET 7 A 9 ARG A 210 GLY A 214 1 O ILE A 212 N ILE A 167 SHEET 8 A 9 GLY A 233 VAL A 236 1 O GLY A 233 N TYR A 213 SHEET 9 A 9 PHE A 7 ASN A 11 1 N GLY A 9 O VAL A 236 SITE 1 AC1 10 SER A 174 ILE A 175 GLY A 176 SER A 216 SITE 2 AC1 10 GLY A 237 GLY A 238 HOH A 923 HOH A 925 SITE 3 AC1 10 HOH A 943 HOH A1001 SITE 1 AC2 3 ARG A 135 GLN A 185 HOH A1084 SITE 1 AC3 8 LYS A 195 ASN A 218 ALA A 239 LYS A 242 SITE 2 AC3 8 GLU A 244 HOH A1136 HOH A1137 HOH A1142 SITE 1 AC4 7 HIS A 24 ALA A 27 PRO A 243 HOH A 987 SITE 2 AC4 7 HOH A1070 HOH A1151 HOH A1176 CRYST1 55.371 100.443 118.796 90.00 90.00 90.00 I 2 2 2 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 0.018060 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009956 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008418 0.00000 MASTER 308 0 4 15 9 0 8 6 0 0 0 20 END