HEADER TRANSFERASE 28-MAR-05 1Z7Y TITLE CRYSTAL STRUCTURE OF THE ARABIDOPSIS THALIANA O-ACETYLSERINE TITLE 2 SULFHYDRYLASE K46A MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: CYSTEINE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: O-ACETYLSERINE SULFHYDRYLASE, O-ACETYLSERINE (THIOL)-LYASE, COMPND 5 CSASE A, CS-A, OAS-TL A, CYS-3A, AT.OAS.5-8; COMPND 6 EC: 2.5.1.47; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ARABIDOPSIS THALIANA; SOURCE 3 ORGANISM_COMMON: THALE CRESS; SOURCE 4 ORGANISM_TAXID: 3702; SOURCE 5 GENE: OASA1, OAS1; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI BL21(DE3); SOURCE 7 EXPRESSION_SYSTEM_TAXID: 469008; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: BL21(DE3); SOURCE 9 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 10 EXPRESSION_SYSTEM_PLASMID: PET28A-ATOASSA-K46A KEYWDS TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR E.R.BONNER,R.E.CAHOON,S.M.KNAPKE,J.M.JEZ REVDAT 6 23-AUG-23 1Z7Y 1 REMARK REVDAT 5 20-OCT-21 1Z7Y 1 REMARK SEQADV REVDAT 4 13-JUL-11 1Z7Y 1 VERSN REVDAT 3 24-FEB-09 1Z7Y 1 VERSN REVDAT 2 14-MAR-06 1Z7Y 1 JRNL REVDAT 1 20-SEP-05 1Z7Y 0 JRNL AUTH E.R.BONNER,R.E.CAHOON,S.M.KNAPKE,J.M.JEZ JRNL TITL MOLECULAR BASIS OF CYSTEINE BIOSYNTHESIS IN PLANTS: JRNL TITL 2 STRUCTURAL AND FUNCTIONAL ANALYSIS OF O-ACETYLSERINE JRNL TITL 3 SULFHYDRYLASE FROM ARABIDOPSIS THALIANA. JRNL REF J.BIOL.CHEM. V. 280 38803 2005 JRNL REFN ISSN 0021-9258 JRNL PMID 16166087 JRNL DOI 10.1074/JBC.M505313200 REMARK 2 REMARK 2 RESOLUTION. 2.70 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) : 2.70 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 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 : 15955 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.251 REMARK 3 FREE R VALUE : 0.277 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 795 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 : 2354 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 24 REMARK 3 SOLVENT ATOMS : 72 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) : 0.008 REMARK 3 BOND ANGLES (DEGREES) : 1.400 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 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 1Z7Y COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 07-APR-05. REMARK 100 THE DEPOSITION ID IS D_1000032411. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 05-MAR-05 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 4.5 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 : ENRAF-NONIUS FR591 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : BRUKER SMART 6000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : PROTEUM PLUS REMARK 200 DATA SCALING SOFTWARE : PROTEUM PLUS REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 15955 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.700 REMARK 200 RESOLUTION RANGE LOW (A) : 60.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 98.5 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) : 2.70 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.80 REMARK 200 COMPLETENESS FOR SHELL (%) : 94.9 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1OAS REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 39.48 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: SODIUM FORMATE, PH 4.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 277K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 21 2 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y+1/2,X+1/2,Z+3/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+1/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+3/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+1/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 50.07950 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 52.92800 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 52.92800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 75.11925 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 52.92800 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 52.92800 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 25.03975 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 52.92800 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 52.92800 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 75.11925 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 52.92800 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 52.92800 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 25.03975 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 50.07950 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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 350 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 7200 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 22730 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -58.0 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 0.000000 -1.000000 0.000000 105.85600 REMARK 350 BIOMT2 2 -1.000000 0.000000 0.000000 105.85600 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 -50.07950 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 ALA A 2 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 ASN A 22 -81.61 -98.48 REMARK 500 PRO A 65 125.47 -29.73 REMARK 500 GLU A 72 129.57 -179.02 REMARK 500 THR A 74 150.80 179.33 REMARK 500 ALA A 99 0.55 -66.96 REMARK 500 SER A 102 152.90 -34.05 REMARK 500 ALA A 132 -70.88 -50.65 REMARK 500 GLN A 146 79.53 59.96 REMARK 500 ASN A 153 -79.11 -44.60 REMARK 500 THR A 160 -71.95 -129.25 REMARK 500 THR A 187 -70.11 -69.54 REMARK 500 ASN A 197 119.43 -174.39 REMARK 500 SER A 210 39.80 -152.21 REMARK 500 ILE A 223 78.96 -64.18 REMARK 500 ALA A 228 -2.34 -57.34 REMARK 500 ASN A 236 76.24 -110.69 REMARK 500 GLU A 285 -6.74 -47.62 REMARK 500 TYR A 302 11.89 -145.22 REMARK 500 SER A 304 38.55 -97.73 REMARK 500 ALA A 310 -79.48 -47.89 REMARK 500 ALA A 315 -88.79 -84.86 REMARK 500 ALA A 317 -70.05 -54.19 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 AA5 A 501 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1Z7W RELATED DB: PDB DBREF 1Z7Y A 1 322 UNP P47998 CYSK1_ARATH 1 322 SEQADV 1Z7Y ALA A 46 UNP P47998 LYS 46 ENGINEERED MUTATION SEQRES 1 A 322 MET ALA SER ARG ILE ALA LYS ASP VAL THR GLU LEU ILE SEQRES 2 A 322 GLY ASN THR PRO LEU VAL TYR LEU ASN ASN VAL ALA GLU SEQRES 3 A 322 GLY CYS VAL GLY ARG VAL ALA ALA LYS LEU GLU MET MET SEQRES 4 A 322 GLU PRO CYS SER SER VAL ALA ASP ARG ILE GLY PHE SER SEQRES 5 A 322 MET ILE SER ASP ALA GLU LYS LYS GLY LEU ILE LYS PRO SEQRES 6 A 322 GLY GLU SER VAL LEU ILE GLU PRO THR SER GLY ASN THR SEQRES 7 A 322 GLY VAL GLY LEU ALA PHE THR ALA ALA ALA LYS GLY TYR SEQRES 8 A 322 LYS LEU ILE ILE THR MET PRO ALA SER MET SER THR GLU SEQRES 9 A 322 ARG ARG ILE ILE LEU LEU ALA PHE GLY VAL GLU LEU VAL SEQRES 10 A 322 LEU THR ASP PRO ALA LYS GLY MET LYS GLY ALA ILE ALA SEQRES 11 A 322 LYS ALA GLU GLU ILE LEU ALA LYS THR PRO ASN GLY TYR SEQRES 12 A 322 MET LEU GLN GLN PHE GLU ASN PRO ALA ASN PRO LYS ILE SEQRES 13 A 322 HIS TYR GLU THR THR GLY PRO GLU ILE TRP LYS GLY THR SEQRES 14 A 322 GLY GLY LYS ILE ASP GLY PHE VAL SER GLY ILE GLY THR SEQRES 15 A 322 GLY GLY THR ILE THR GLY ALA GLY LYS TYR LEU LYS GLU SEQRES 16 A 322 GLN ASN ALA ASN VAL LYS LEU TYR GLY VAL GLU PRO VAL SEQRES 17 A 322 GLU SER ALA ILE LEU SER GLY GLY LYS PRO GLY PRO HIS SEQRES 18 A 322 LYS ILE GLN GLY ILE GLY ALA GLY PHE ILE PRO SER VAL SEQRES 19 A 322 LEU ASN VAL ASP LEU ILE ASP GLU VAL VAL GLN VAL SER SEQRES 20 A 322 SER ASP GLU SER ILE ASP MET ALA ARG GLN LEU ALA LEU SEQRES 21 A 322 LYS GLU GLY LEU LEU VAL GLY ILE SER SER GLY ALA ALA SEQRES 22 A 322 ALA ALA ALA ALA ILE LYS LEU ALA GLN ARG PRO GLU ASN SEQRES 23 A 322 ALA GLY LYS LEU PHE VAL ALA ILE PHE PRO SER PHE GLY SEQRES 24 A 322 GLU ARG TYR LEU SER THR VAL LEU PHE ASP ALA THR ARG SEQRES 25 A 322 LYS GLU ALA GLU ALA MET THR PHE GLU ALA HET AA5 A 501 24 HETNAM AA5 N-[(3-HYDROXY-2-METHYL-5-{[(TRIHYDROXYPHOSPHORANYL) HETNAM 2 AA5 OXY]METHYL}PYRIDIN-4-YL)METHYLENE]METHIONINE FORMUL 2 AA5 C13 H19 N2 O7 P S FORMUL 3 HOH *72(H2 O) HELIX 1 1 ASP A 8 ILE A 13 5 6 HELIX 2 2 MET A 38 GLU A 40 5 3 HELIX 3 3 ALA A 46 LYS A 60 1 15 HELIX 4 4 ASN A 77 LYS A 89 1 13 HELIX 5 5 THR A 103 ALA A 111 1 9 HELIX 6 6 LYS A 123 THR A 139 1 17 HELIX 7 7 PRO A 151 THR A 160 1 10 HELIX 8 8 THR A 160 GLY A 170 1 11 HELIX 9 9 GLY A 183 GLU A 195 1 13 HELIX 10 10 GLU A 209 GLY A 215 5 7 HELIX 11 11 ASN A 236 ILE A 240 5 5 HELIX 12 12 SER A 247 GLY A 263 1 17 HELIX 13 13 GLY A 267 GLN A 282 1 16 HELIX 14 14 ARG A 283 ALA A 287 5 5 HELIX 15 15 PHE A 298 LEU A 303 5 6 HELIX 16 16 THR A 305 MET A 318 1 14 SHEET 1 A 6 LEU A 18 TYR A 20 0 SHEET 2 A 6 ARG A 31 LEU A 36 -1 O ALA A 34 N VAL A 19 SHEET 3 A 6 LEU A 290 PHE A 295 1 O PHE A 291 N ALA A 33 SHEET 4 A 6 GLY A 175 GLY A 179 1 N GLY A 175 O VAL A 292 SHEET 5 A 6 LYS A 201 PRO A 207 1 O LYS A 201 N PHE A 176 SHEET 6 A 6 GLU A 242 VAL A 246 1 O GLU A 242 N GLY A 204 SHEET 1 B 4 VAL A 117 THR A 119 0 SHEET 2 B 4 LYS A 92 PRO A 98 1 N MET A 97 O VAL A 117 SHEET 3 B 4 VAL A 69 PRO A 73 1 N GLU A 72 O THR A 96 SHEET 4 B 4 GLY A 142 MET A 144 1 O TYR A 143 N ILE A 71 SITE 1 AC1 19 THR A 74 GLY A 76 ASN A 77 THR A 78 SITE 2 AC1 19 GLN A 147 GLY A 179 ILE A 180 GLY A 181 SITE 3 AC1 19 THR A 182 GLY A 183 GLY A 184 THR A 185 SITE 4 AC1 19 GLY A 225 ILE A 226 SER A 269 PRO A 296 SITE 5 AC1 19 SER A 297 TYR A 302 HOH A 508 CRYST1 105.856 105.856 100.159 90.00 90.00 90.00 P 43 21 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 0.009447 0.000000 0.000000 0.00000 SCALE2 0.000000 0.009447 0.000000 0.00000 SCALE3 0.000000 0.000000 0.009984 0.00000