HEADER ISOMERASE 22-AUG-94 1CSM TITLE THE CRYSTAL STRUCTURE OF ALLOSTERIC CHORISMATE MUTASE AT TITLE 2 2.2 ANGSTROMS RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHORISMATE MUTASE; COMPND 3 CHAIN: A, B; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: SACCHAROMYCES CEREVISIAE; SOURCE 3 ORGANISM_COMMON: BAKER'S YEAST; SOURCE 4 ORGANISM_TAXID: 4932 KEYWDS ISOMERASE EXPDTA X-RAY DIFFRACTION AUTHOR Y.XUE,W.N.LIPSCOMB REVDAT 3 24-FEB-09 1CSM 1 VERSN REVDAT 2 01-APR-03 1CSM 1 JRNL REVDAT 1 15-SEP-95 1CSM 0 JRNL AUTH Y.XUE,W.N.LIPSCOMB,R.GRAF,G.SCHNAPPAUF,G.BRAUS JRNL TITL THE CRYSTAL STRUCTURE OF ALLOSTERIC CHORISMATE JRNL TITL 2 MUTASE AT 2.2-A RESOLUTION. JRNL REF PROC.NATL.ACAD.SCI.USA V. 91 10814 1994 JRNL REFN ISSN 0027-8424 JRNL PMID 7971967 JRNL DOI 10.1073/PNAS.91.23.10814 REMARK 1 REMARK 2 REMARK 2 RESOLUTION. 2.20 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 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) (%) : 80.1 REMARK 3 NUMBER OF REFLECTIONS : 38840 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) : 0.196 REMARK 3 FREE R VALUE : 0.310 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 : 5110 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 291 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 32.60 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) : 0.25 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) : 0.110 REMARK 3 BOND ANGLES (DEGREES) : 1.53 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 20.73 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.46 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: NULL REMARK 4 REMARK 4 1CSM 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 : 19-OCT-93 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MSC REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 38840 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 1.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 80.6 REMARK 200 DATA REDUNDANCY : 2.100 REMARK 200 R MERGE (I) : 0.08600 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 (%): 64.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.51 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 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 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+5/6 REMARK 290 6555 X-Y,X,Z+1/6 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 52.63333 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 105.26667 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 78.95000 REMARK 290 SMTRY1 5 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 5 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 131.58333 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 26.31667 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: 4310 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 22250 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -22.0 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 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 ASN A 218 REMARK 465 GLU A 219 REMARK 465 SER A 220 REMARK 465 GLY A 221 REMARK 465 ASN B 218 REMARK 465 GLU B 219 REMARK 465 SER B 220 REMARK 465 GLY B 221 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 PHE A 3 9.75 -66.30 REMARK 500 LEU A 10 29.99 -77.33 REMARK 500 CYS A 39 65.77 39.90 REMARK 500 PRO A 106 -17.56 -48.43 REMARK 500 ASP A 172 63.80 -155.38 REMARK 500 ARG A 223 106.74 49.73 REMARK 500 LEU A 254 31.83 -92.29 REMARK 500 GLU A 255 -86.73 -66.33 REMARK 500 LEU B 10 37.87 -82.80 REMARK 500 PRO B 48 -63.48 -29.09 REMARK 500 LEU B 50 44.13 -104.95 REMARK 500 ASN B 194 74.48 -105.04 REMARK 500 ARG B 223 83.56 53.23 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 TRP B 501 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRP A 502 DBREF 1CSM A 1 256 UNP P32178 CHMU_YEAST 1 256 DBREF 1CSM B 1 256 UNP P32178 CHMU_YEAST 1 256 SEQADV 1CSM ILE A 226 UNP P32178 THR 226 CONFLICT SEQADV 1CSM ILE B 226 UNP P32178 THR 226 CONFLICT SEQRES 1 A 256 MET ASP PHE THR LYS PRO GLU THR VAL LEU ASN LEU GLN SEQRES 2 A 256 ASN ILE ARG ASP GLU LEU VAL ARG MET GLU ASP SER ILE SEQRES 3 A 256 ILE PHE LYS PHE ILE GLU ARG SER HIS PHE ALA THR CYS SEQRES 4 A 256 PRO SER VAL TYR GLU ALA ASN HIS PRO GLY LEU GLU ILE SEQRES 5 A 256 PRO ASN PHE LYS GLY SER PHE LEU ASP TRP ALA LEU SER SEQRES 6 A 256 ASN LEU GLU ILE ALA HIS SER ARG ILE ARG ARG PHE GLU SEQRES 7 A 256 SER PRO ASP GLU THR PRO PHE PHE PRO ASP LYS ILE GLN SEQRES 8 A 256 LYS SER PHE LEU PRO SER ILE ASN TYR PRO GLN ILE LEU SEQRES 9 A 256 ALA PRO TYR ALA PRO GLU VAL ASN TYR ASN ASP LYS ILE SEQRES 10 A 256 LYS LYS VAL TYR ILE GLU LYS ILE ILE PRO LEU ILE SER SEQRES 11 A 256 LYS ARG ASP GLY ASP ASP LYS ASN ASN PHE GLY SER VAL SEQRES 12 A 256 ALA THR ARG ASP ILE GLU CYS LEU GLN SER LEU SER ARG SEQRES 13 A 256 ARG ILE HIS PHE GLY LYS PHE VAL ALA GLU ALA LYS PHE SEQRES 14 A 256 GLN SER ASP ILE PRO LEU TYR THR LYS LEU ILE LYS SER SEQRES 15 A 256 LYS ASP VAL GLU GLY ILE MET LYS ASN ILE THR ASN SER SEQRES 16 A 256 ALA VAL GLU GLU LYS ILE LEU GLU ARG LEU THR LYS LYS SEQRES 17 A 256 ALA GLU VAL TYR GLY VAL ASP PRO THR ASN GLU SER GLY SEQRES 18 A 256 GLU ARG ARG ILE ILE PRO GLU TYR LEU VAL LYS ILE TYR SEQRES 19 A 256 LYS GLU ILE VAL ILE PRO ILE THR LYS GLU VAL GLU VAL SEQRES 20 A 256 GLU TYR LEU LEU ARG ARG LEU GLU GLU SEQRES 1 B 256 MET ASP PHE THR LYS PRO GLU THR VAL LEU ASN LEU GLN SEQRES 2 B 256 ASN ILE ARG ASP GLU LEU VAL ARG MET GLU ASP SER ILE SEQRES 3 B 256 ILE PHE LYS PHE ILE GLU ARG SER HIS PHE ALA THR CYS SEQRES 4 B 256 PRO SER VAL TYR GLU ALA ASN HIS PRO GLY LEU GLU ILE SEQRES 5 B 256 PRO ASN PHE LYS GLY SER PHE LEU ASP TRP ALA LEU SER SEQRES 6 B 256 ASN LEU GLU ILE ALA HIS SER ARG ILE ARG ARG PHE GLU SEQRES 7 B 256 SER PRO ASP GLU THR PRO PHE PHE PRO ASP LYS ILE GLN SEQRES 8 B 256 LYS SER PHE LEU PRO SER ILE ASN TYR PRO GLN ILE LEU SEQRES 9 B 256 ALA PRO TYR ALA PRO GLU VAL ASN TYR ASN ASP LYS ILE SEQRES 10 B 256 LYS LYS VAL TYR ILE GLU LYS ILE ILE PRO LEU ILE SER SEQRES 11 B 256 LYS ARG ASP GLY ASP ASP LYS ASN ASN PHE GLY SER VAL SEQRES 12 B 256 ALA THR ARG ASP ILE GLU CYS LEU GLN SER LEU SER ARG SEQRES 13 B 256 ARG ILE HIS PHE GLY LYS PHE VAL ALA GLU ALA LYS PHE SEQRES 14 B 256 GLN SER ASP ILE PRO LEU TYR THR LYS LEU ILE LYS SER SEQRES 15 B 256 LYS ASP VAL GLU GLY ILE MET LYS ASN ILE THR ASN SER SEQRES 16 B 256 ALA VAL GLU GLU LYS ILE LEU GLU ARG LEU THR LYS LYS SEQRES 17 B 256 ALA GLU VAL TYR GLY VAL ASP PRO THR ASN GLU SER GLY SEQRES 18 B 256 GLU ARG ARG ILE ILE PRO GLU TYR LEU VAL LYS ILE TYR SEQRES 19 B 256 LYS GLU ILE VAL ILE PRO ILE THR LYS GLU VAL GLU VAL SEQRES 20 B 256 GLU TYR LEU LEU ARG ARG LEU GLU GLU HET TRP B 501 19 HET TRP A 502 19 HETNAM TRP TRYPTOPHAN FORMUL 3 TRP 2(C11 H12 N2 O2) FORMUL 5 HOH *97(H2 O) HELIX 1 1 LYS A 5 LEU A 10 1 6 HELIX 2 2 ASN A 11 SER A 34 1 24 HELIX 3 3 CYS A 39 GLU A 44 1 6 HELIX 4 4 SER A 58 ILE A 74 1 17 HELIX 5 5 ARG A 75 SER A 79 5 5 HELIX 6 6 TYR A 107 VAL A 111 5 5 HELIX 7 7 TYR A 113 ILE A 125 1 13 HELIX 8 8 ILE A 125 SER A 130 1 6 HELIX 9 9 ASN A 139 PHE A 160 1 22 HELIX 10 10 PHE A 160 ASP A 172 1 13 HELIX 11 11 ASP A 172 SER A 182 1 11 HELIX 12 12 ASP A 184 THR A 193 1 10 HELIX 13 13 ASN A 194 TYR A 212 1 19 HELIX 14 14 ILE A 226 ILE A 237 1 12 HELIX 15 15 ILE A 237 ARG A 252 1 16 HELIX 16 16 LYS B 5 LEU B 10 1 6 HELIX 17 17 ASN B 11 SER B 34 1 24 HELIX 18 18 CYS B 39 GLU B 44 1 6 HELIX 19 19 HIS B 47 GLU B 51 5 5 HELIX 20 20 SER B 58 ILE B 74 1 17 HELIX 21 21 ARG B 75 SER B 79 5 5 HELIX 22 22 TYR B 107 VAL B 111 5 5 HELIX 23 23 TYR B 113 LYS B 124 1 12 HELIX 24 24 ILE B 125 SER B 130 1 6 HELIX 25 25 ASN B 139 PHE B 160 1 22 HELIX 26 26 PHE B 160 ASP B 172 1 13 HELIX 27 27 ASP B 172 SER B 182 1 11 HELIX 28 28 ASP B 184 THR B 193 1 10 HELIX 29 29 ASN B 194 TYR B 212 1 19 HELIX 30 30 ILE B 226 ILE B 237 1 12 HELIX 31 31 ILE B 237 ARG B 252 1 16 HELIX 32 32 ARG B 253 GLU B 256 5 4 SITE 1 AC1 9 ILE A 74 ARG A 76 GLU A 82 ASN B 138 SITE 2 AC1 9 ASN B 139 PHE B 140 GLY B 141 SER B 142 SITE 3 AC1 9 HOH B 516 SITE 1 AC2 14 ASN A 138 ASN A 139 PHE A 140 GLY A 141 SITE 2 AC2 14 SER A 142 THR A 145 HOH A 527 HOH A 536 SITE 3 AC2 14 HOH A 563 HOH A 574 ILE B 74 ARG B 76 SITE 4 AC2 14 GLU B 82 HOH B 521 CRYST1 95.800 95.800 157.900 90.00 90.00 120.00 P 61 12 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 0.010438 0.006027 0.000000 0.00000 SCALE2 0.000000 0.012053 0.000000 0.00000 SCALE3 0.000000 0.000000 0.006333 0.00000 MASTER 264 0 2 32 0 0 7 6 0 0 0 40 END