HEADER SYNTHASE 14-MAY-97 1AJ0 TITLE CRYSTAL STRUCTURE OF A TERNARY COMPLEX OF E. COLI DIHYDROPTEROATE TITLE 2 SYNTHASE COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROPTEROATE SYNTHASE; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: DHPS; COMPND 5 EC: 2.5.1.15 SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 562 KEYWDS ANTIBIOTIC, RESISTANCE, TRANSFERASE, FOLATE, BIOSYNTHESIS, SYNTHASE EXPDTA X-RAY DIFFRACTION AUTHOR A.ACHARI,D.O.SOMERS,J.N.CHAMPNESS,P.K.BRYANT,J.ROSEMOND,D.K.STAMMERS REVDAT 4 07-FEB-24 1AJ0 1 REMARK REVDAT 3 13-JUL-11 1AJ0 1 VERSN REVDAT 2 24-FEB-09 1AJ0 1 VERSN REVDAT 1 20-MAY-98 1AJ0 0 JRNL AUTH A.ACHARI,D.O.SOMERS,J.N.CHAMPNESS,P.K.BRYANT,J.ROSEMOND, JRNL AUTH 2 D.K.STAMMERS JRNL TITL CRYSTAL STRUCTURE OF THE ANTI-BACTERIAL SULFONAMIDE DRUG JRNL TITL 2 TARGET DIHYDROPTEROATE SYNTHASE. JRNL REF NAT.STRUCT.BIOL. V. 4 490 1997 JRNL REFN ISSN 1072-8368 JRNL PMID 9187658 JRNL DOI 10.1038/NSB0697-490 REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PROFFT REMARK 3 AUTHORS : KONNERT,HENDRICKSON,FINZEL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 COMPLETENESS FOR RANGE (%) : 80.0 REMARK 3 NUMBER OF REFLECTIONS : 18585 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 + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.206 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL REMARK 3 REMARK 3 FIT/AGREEMENT OF MODEL WITH ALL DATA. REMARK 3 R VALUE (WORKING + TEST SET, NO CUTOFF) : NULL REMARK 3 R VALUE (WORKING SET, NO CUTOFF) : NULL REMARK 3 FREE R VALUE (NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%, NO CUTOFF) : NULL REMARK 3 FREE R VALUE TEST SET COUNT (NO CUTOFF) : NULL REMARK 3 TOTAL NUMBER OF REFLECTIONS (NO CUTOFF) : 23206 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 2147 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 30 REMARK 3 SOLVENT ATOMS : 105 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) : 10.0 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.010 ; 0.020 REMARK 3 ANGLE DISTANCE (A) : 0.032 ; 0.040 REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : 0.038 ; 0.050 REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : 0.101 ; 0.120 REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : 0.179 ; 0.500 REMARK 3 MULTIPLE TORSION (A) : 0.223 ; 0.500 REMARK 3 H-BOND (X...Y) (A) : 0.230 ; 0.500 REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : 1.800 ; 3.000 REMARK 3 STAGGERED (DEGREES) : 17.900; 15.000 REMARK 3 TRANSVERSE (DEGREES) : 24.300; 20.000 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1AJ0 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY BNL. REMARK 100 THE DEPOSITION ID IS D_1000170875. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : JUL-93 REMARK 200 TEMPERATURE (KELVIN) : 289 REMARK 200 PH : 8.4 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : XENGEN REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 23202 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.000 REMARK 200 RESOLUTION RANGE LOW (A) : 20.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 0.05400 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: PROFFT REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 50.76 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.50 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLIZED FROM 42% REMARK 280 AMMONIUM SULFATE, 50MM TRIS-HCL, PH 8.4. REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 21 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y+1/2,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,Y,-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 0.00000 REMARK 290 SMTRY2 2 0.000000 1.000000 0.000000 30.33500 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 46.45500 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 30.33500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 46.45500 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 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 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 O HOH A 448 O HOH A 448 4555 1.80 REMARK 500 REMARK 500 REMARK: NULL 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 ARG A 163 NE - CZ - NH2 ANGL. DEV. = -3.2 DEGREES REMARK 500 VAL A 216 N - CA - CB ANGL. DEV. = -15.6 DEGREES REMARK 500 ARG A 235 NE - CZ - NH1 ANGL. DEV. = 4.9 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 PHE A 28 48.43 -92.51 REMARK 500 SER A 29 -169.82 -46.83 REMARK 500 ASP A 30 10.69 59.80 REMARK 500 THR A 33 98.67 52.40 REMARK 500 HIS A 34 -148.20 -91.12 REMARK 500 ASP A 156 111.05 -161.11 REMARK 500 ARG A 220 18.60 54.73 REMARK 500 ARG A 280 145.94 174.87 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 ARG A 163 0.11 SIDE CHAIN 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 284 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE PH2 A 559 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SAN A 561 DBREF 1AJ0 A 1 282 UNP P0AC13 DHPS_ECOLI 1 282 SEQRES 1 A 282 MET LYS LEU PHE ALA GLN GLY THR SER LEU ASP LEU SER SEQRES 2 A 282 HIS PRO HIS VAL MET GLY ILE LEU ASN VAL THR PRO ASP SEQRES 3 A 282 SER PHE SER ASP GLY GLY THR HIS ASN SER LEU ILE ASP SEQRES 4 A 282 ALA VAL LYS HIS ALA ASN LEU MET ILE ASN ALA GLY ALA SEQRES 5 A 282 THR ILE ILE ASP VAL GLY GLY GLU SER THR ARG PRO GLY SEQRES 6 A 282 ALA ALA GLU VAL SER VAL GLU GLU GLU LEU GLN ARG VAL SEQRES 7 A 282 ILE PRO VAL VAL GLU ALA ILE ALA GLN ARG PHE GLU VAL SEQRES 8 A 282 TRP ILE SER VAL ASP THR SER LYS PRO GLU VAL ILE ARG SEQRES 9 A 282 GLU SER ALA LYS VAL GLY ALA HIS ILE ILE ASN ASP ILE SEQRES 10 A 282 ARG SER LEU SER GLU PRO GLY ALA LEU GLU ALA ALA ALA SEQRES 11 A 282 GLU THR GLY LEU PRO VAL CYS LEU MET HIS MET GLN GLY SEQRES 12 A 282 ASN PRO LYS THR MET GLN GLU ALA PRO LYS TYR ASP ASP SEQRES 13 A 282 VAL PHE ALA GLU VAL ASN ARG TYR PHE ILE GLU GLN ILE SEQRES 14 A 282 ALA ARG CYS GLU GLN ALA GLY ILE ALA LYS GLU LYS LEU SEQRES 15 A 282 LEU LEU ASP PRO GLY PHE GLY PHE GLY LYS ASN LEU SER SEQRES 16 A 282 HIS ASN TYR SER LEU LEU ALA ARG LEU ALA GLU PHE HIS SEQRES 17 A 282 HIS PHE ASN LEU PRO LEU LEU VAL GLY MET SER ARG LYS SEQRES 18 A 282 SER MET ILE GLY GLN LEU LEU ASN VAL GLY PRO SER GLU SEQRES 19 A 282 ARG LEU SER GLY SER LEU ALA CYS ALA VAL ILE ALA ALA SEQRES 20 A 282 MET GLN GLY ALA HIS ILE ILE ARG VAL HIS ASP VAL LYS SEQRES 21 A 282 GLU THR VAL GLU ALA MET ARG VAL VAL GLU ALA THR LEU SEQRES 22 A 282 SER ALA LYS GLU ASN LYS ARG TYR GLU HET SO4 A 284 5 HET PH2 A 559 14 HET SAN A 561 11 HETNAM SO4 SULFATE ION HETNAM PH2 2-AMINO-6-HYDROXYMETHYL-7,8-DIHYDRO-3H-PTERIDIN-4-ONE HETNAM SAN SULFANILAMIDE FORMUL 2 SO4 O4 S 2- FORMUL 3 PH2 C7 H9 N5 O2 FORMUL 4 SAN C6 H8 N2 O2 S FORMUL 5 HOH *105(H2 O) HELIX 1 1 ASN A 35 ALA A 50 5 16 HELIX 2 2 VAL A 71 ARG A 88 1 18 HELIX 3 3 PRO A 100 LYS A 108 1 9 HELIX 4 4 ALA A 125 THR A 132 1 8 HELIX 5 5 VAL A 157 GLN A 174 1 18 HELIX 6 6 LYS A 179 LYS A 181 5 3 HELIX 7 7 LEU A 194 ALA A 202 1 9 HELIX 8 8 LEU A 204 PHE A 210 5 7 HELIX 9 9 SER A 222 LEU A 228 1 7 HELIX 10 10 PRO A 232 GLU A 234 5 3 HELIX 11 11 LEU A 236 GLN A 249 1 14 HELIX 12 12 VAL A 259 ALA A 275 1 17 SHEET 1 A 2 LYS A 2 ALA A 5 0 SHEET 2 A 2 THR A 8 ASP A 11 -1 N LEU A 10 O LEU A 3 SHEET 1 B 7 ILE A 253 VAL A 256 0 SHEET 2 B 7 HIS A 16 ASN A 22 1 N HIS A 16 O ILE A 254 SHEET 3 B 7 ILE A 54 GLY A 58 1 N ILE A 54 O GLY A 19 SHEET 4 B 7 TRP A 92 ASP A 96 1 N TRP A 92 O ILE A 55 SHEET 5 B 7 ILE A 113 ASP A 116 1 N ILE A 113 O VAL A 95 SHEET 6 B 7 PRO A 135 MET A 139 1 N PRO A 135 O ILE A 114 SHEET 7 B 7 LEU A 182 ASP A 185 1 N LEU A 183 O VAL A 136 SITE 1 AC1 7 ASN A 22 ARG A 63 ARG A 255 HIS A 257 SITE 2 AC1 7 HOH A 312 PH2 A 559 SAN A 561 SITE 1 AC2 13 THR A 62 ASP A 96 ASN A 115 ILE A 117 SITE 2 AC2 13 ASP A 185 PHE A 190 LEU A 215 GLY A 217 SITE 3 AC2 13 LYS A 221 ARG A 255 SO4 A 284 HOH A 419 SITE 4 AC2 13 SAN A 561 SITE 1 AC3 8 THR A 62 ARG A 63 SER A 219 ARG A 220 SITE 2 AC3 8 LYS A 221 HIS A 257 SO4 A 284 PH2 A 559 CRYST1 92.910 60.670 59.820 90.00 114.67 90.00 C 1 21 1 4 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 0.010763 0.000000 0.004944 0.00000 SCALE2 0.000000 0.016483 0.000000 0.00000 SCALE3 0.000000 0.000000 0.018396 0.00000