PDB Short entry for 1VB3 HEADER LYASE 21-FEB-04 1VB3 TITLE CRYSTAL STRUCTURE OF THREONINE SYNTHASE FROM ESCHERICHIA COLI COMPND MOL_ID: 1; COMPND 2 MOLECULE: THREONINE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 EC: 4.2.3.1; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562; SOURCE 4 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 5 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS PLP-DEPENDENT ENZYME, LYASE EXPDTA X-RAY DIFFRACTION AUTHOR R.OMI REVDAT 3 27-DEC-23 1VB3 1 REMARK REVDAT 2 24-FEB-09 1VB3 1 VERSN REVDAT 1 21-JUN-05 1VB3 0 JRNL AUTH R.OMI,M.GOTO,I.MIYAHARA,H.MIZUGUCHI,H.HAYASHI,H.KAGAMIYAMA, JRNL AUTH 2 K.HIROTSU JRNL TITL CRYSTAL STRUCTURE OF THREONINE SYNTHASE FROM ESCHERICHIA JRNL TITL 2 COLI JRNL REF TO BE PUBLISHED JRNL REFN REMARK 2 REMARK 2 RESOLUTION. 2.20 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 : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.15 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 : 25814 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) : 0.224 REMARK 3 FREE R VALUE : 0.262 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 : 3304 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 17 REMARK 3 SOLVENT ATOMS : 201 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) : 0.28 REMARK 3 ESD FROM SIGMAA (A) : 0.25 REMARK 3 LOW RESOLUTION CUTOFF (A) : 5.00 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) : 0.004 REMARK 3 BOND ANGLES (DEGREES) : 1.000 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 21.50 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.650 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 1VB3 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 24-FEB-04. REMARK 100 THE DEPOSITION ID IS D_1000006421. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 22-SEP-01 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SPRING-8 REMARK 200 BEAMLINE : BL41XU REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.0 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA, CCP4 (SCALA) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 25814 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.200 REMARK 200 RESOLUTION RANGE LOW (A) : 33.150 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 81.7 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.20 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.32 REMARK 200 COMPLETENESS FOR SHELL (%) : 69.8 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 <I/SIGMA(I)> 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: AMORE REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 62.61 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.32 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: AMMONIUM SULFATE, HEPES, PH 7.5, VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 31 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+1/3 REMARK 290 3555 -X+Y,-X,Z+2/3 REMARK 290 4555 Y,X,-Z REMARK 290 5555 X-Y,-Y,-Z+2/3 REMARK 290 6555 -X,-X+Y,-Z+1/3 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 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 47.11033 REMARK 290 SMTRY1 3 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 3 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 94.22067 REMARK 290 SMTRY1 4 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 4 0.866025 0.500000 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 0.00000 REMARK 290 SMTRY2 5 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 94.22067 REMARK 290 SMTRY1 6 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 6 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 47.11033 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: MONOMERIC REMARK 350 SOFTWARE USED: PISA 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 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 THR A 254 OG1 CG2 REMARK 470 GLN A 287 CG CD OE1 NE2 REMARK 470 GLN A 322 CG CD OE1 NE2 REMARK 470 LYS A 398 CG CD CE NZ REMARK 470 ASP A 416 CB CG OD1 OD2 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 SER A 213 -9.56 -59.08 REMARK 500 ARG A 238 -19.86 -47.20 REMARK 500 ASN A 274 -151.54 -92.56 REMARK 500 ASP A 277 54.73 -97.06 REMARK 500 SER A 298 63.97 -102.35 REMARK 500 ALA A 329 139.67 -174.65 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 SO4 A 501 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE KPA A 500 DBREF 1VB3 A 1 428 UNP P00934 THRC_ECOLI 1 428 SEQRES 1 A 428 MET LYS LEU TYR ASN LEU LYS ASP HIS ASN GLU GLN VAL SEQRES 2 A 428 SER PHE ALA GLN ALA VAL THR GLN GLY LEU GLY LYS ASN SEQRES 3 A 428 GLN GLY LEU PHE PHE PRO HIS ASP LEU PRO GLU PHE SER SEQRES 4 A 428 LEU THR GLU ILE ASP GLU MET LEU LYS LEU ASP PHE VAL SEQRES 5 A 428 THR ARG SER ALA LYS ILE LEU SER ALA PHE ILE GLY ASP SEQRES 6 A 428 GLU ILE PRO GLN GLU ILE LEU GLU GLU ARG VAL ARG ALA SEQRES 7 A 428 ALA PHE ALA PHE PRO ALA PRO VAL ALA ASN VAL GLU SER SEQRES 8 A 428 ASP VAL GLY CYS LEU GLU LEU PHE HIS GLY PRO THR LEU SEQRES 9 A 428 ALA PHE LYS ASP PHE GLY GLY ARG PHE MET ALA GLN MET SEQRES 10 A 428 LEU THR HIS ILE ALA GLY ASP LYS PRO VAL THR ILE LEU SEQRES 11 A 428 THR ALA THR SER GLY ASP THR GLY ALA ALA VAL ALA HIS SEQRES 12 A 428 ALA PHE TYR GLY LEU PRO ASN VAL LYS VAL VAL ILE LEU SEQRES 13 A 428 TYR PRO ARG GLY LYS ILE SER PRO LEU GLN GLU LYS LEU SEQRES 14 A 428 PHE CYS THR LEU GLY GLY ASN ILE GLU THR VAL ALA ILE SEQRES 15 A 428 ASP GLY ASP PHE ASP ALA CYS GLN ALA LEU VAL LYS GLN SEQRES 16 A 428 ALA PHE ASP ASP GLU GLU LEU LYS VAL ALA LEU GLY LEU SEQRES 17 A 428 ASN SER ALA ASN SER ILE ASN ILE SER ARG LEU LEU ALA SEQRES 18 A 428 GLN ILE CYS TYR TYR PHE GLU ALA VAL ALA GLN LEU PRO SEQRES 19 A 428 GLN GLU THR ARG ASN GLN LEU VAL VAL SER VAL PRO SER SEQRES 20 A 428 GLY ASN PHE GLY ASP LEU THR ALA GLY LEU LEU ALA LYS SEQRES 21 A 428 SER LEU GLY LEU PRO VAL LYS ARG PHE ILE ALA ALA THR SEQRES 22 A 428 ASN VAL ASN ASP THR VAL PRO ARG PHE LEU HIS ASP GLY SEQRES 23 A 428 GLN TRP SER PRO LYS ALA THR GLN ALA THR LEU SER ASN SEQRES 24 A 428 ALA MET ASP VAL SER GLN PRO ASN ASN TRP PRO ARG VAL SEQRES 25 A 428 GLU GLU LEU PHE ARG ARG LYS ILE TRP GLN LEU LYS GLU SEQRES 26 A 428 LEU GLY TYR ALA ALA VAL ASP ASP GLU THR THR GLN GLN SEQRES 27 A 428 THR MET ARG GLU LEU LYS GLU LEU GLY TYR THR SER GLU SEQRES 28 A 428 PRO HIS ALA ALA VAL ALA TYR ARG ALA LEU ARG ASP GLN SEQRES 29 A 428 LEU ASN PRO GLY GLU TYR GLY LEU PHE LEU GLY THR ALA SEQRES 30 A 428 HIS PRO ALA LYS PHE LYS GLU SER VAL GLU ALA ILE LEU SEQRES 31 A 428 GLY GLU THR LEU ASP LEU PRO LYS GLU LEU ALA GLU ARG SEQRES 32 A 428 ALA ASP LEU PRO LEU LEU SER HIS ASN LEU PRO ALA ASP SEQRES 33 A 428 PHE ALA ALA LEU ARG LYS LEU MET MET ASN HIS GLN HET SO4 A 501 5 HET KPA A 500 12 HETNAM SO4 SULFATE ION HETNAM KPA 2-OXO-5-PHOSPHONOPENTANOIC ACID FORMUL 2 SO4 O4 S 2- FORMUL 3 KPA C5 H9 O6 P FORMUL 4 HOH *201(H2 O) HELIX 1 1 SER A 14 GLY A 22 1 9 HELIX 2 2 GLY A 24 GLY A 28 5 5 HELIX 3 3 SER A 39 LEU A 47 1 9 HELIX 4 4 ASP A 50 GLY A 64 1 15 HELIX 5 5 ASP A 65 ILE A 67 5 3 HELIX 6 6 PRO A 68 PHE A 80 1 13 HELIX 7 7 PHE A 106 ALA A 122 1 17 HELIX 8 8 ASP A 136 PHE A 145 1 10 HELIX 9 9 SER A 163 THR A 172 1 10 HELIX 10 10 ASP A 185 ALA A 196 1 12 HELIX 11 11 ASP A 199 GLY A 207 1 9 HELIX 12 12 ASN A 215 GLN A 222 1 8 HELIX 13 13 ILE A 223 ALA A 231 1 9 HELIX 14 14 PHE A 250 LEU A 262 1 13 HELIX 15 15 ASP A 277 GLY A 286 1 10 HELIX 16 16 SER A 298 ASP A 302 5 5 HELIX 17 17 ASN A 308 LYS A 319 1 12 HELIX 18 18 GLN A 322 LEU A 326 5 5 HELIX 19 19 ASP A 332 LEU A 346 1 15 HELIX 20 20 GLU A 351 ASP A 363 1 13 HELIX 21 21 HIS A 378 LYS A 381 5 4 HELIX 22 22 PHE A 382 GLY A 391 1 10 HELIX 23 23 PRO A 397 ASP A 405 1 9 HELIX 24 24 ASP A 416 MET A 425 1 10 SHEET 1 A 3 ASP A 8 VAL A 13 0 SHEET 2 A 3 LEU A 3 ASN A 5 -1 N LEU A 3 O VAL A 13 SHEET 3 A 3 PHE A 30 PRO A 32 -1 O PHE A 31 N TYR A 4 SHEET 1 B 6 VAL A 86 GLU A 90 0 SHEET 2 B 6 VAL A 93 GLU A 97 -1 O CYS A 95 N ALA A 87 SHEET 3 B 6 TYR A 370 GLY A 375 1 O GLY A 371 N GLY A 94 SHEET 4 B 6 LEU A 241 PRO A 246 1 N SER A 244 O LEU A 372 SHEET 5 B 6 ARG A 268 THR A 273 1 O ILE A 270 N VAL A 245 SHEET 6 B 6 GLY A 327 ALA A 330 1 O GLY A 327 N PHE A 269 SHEET 1 C 5 LEU A 208 ASN A 209 0 SHEET 2 C 5 VAL A 127 ALA A 132 1 N LEU A 130 O ASN A 209 SHEET 3 C 5 VAL A 151 PRO A 158 1 O LEU A 156 N THR A 131 SHEET 4 C 5 ILE A 177 ASP A 183 1 O VAL A 180 N ILE A 155 SHEET 5 C 5 HIS A 411 PRO A 414 1 O HIS A 411 N ALA A 181 SITE 1 AC1 9 SER A 247 GLY A 248 ASN A 249 PHE A 250 SITE 2 AC1 9 GLY A 251 ASP A 252 KPA A 500 HOH A 538 SITE 3 AC1 9 HOH A 672 SITE 1 AC2 14 LYS A 107 THR A 133 SER A 134 ASP A 136 SITE 2 AC2 14 THR A 137 PHE A 186 ASN A 212 SER A 213 SITE 3 AC2 14 ARG A 218 ASN A 249 SO4 A 501 HOH A 503 SITE 4 AC2 14 HOH A 538 HOH A 630 CRYST1 86.931 86.931 141.331 90.00 90.00 120.00 P 31 2 1 6 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 0.011503 0.006641 0.000000 0.00000 SCALE2 0.000000 0.013283 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007076 0.00000