HEADER TRANSFERASE 19-FEB-97 1AD1 TITLE DIHYDROPTEROATE SYNTHETASE (APO FORM) FROM STAPHYLOCOCCUS AUREUS COMPND MOL_ID: 1; COMPND 2 MOLECULE: DIHYDROPTEROATE SYNTHETASE; COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: DHPS; COMPND 5 EC: 2.5.1.15; COMPND 6 OTHER_DETAILS: APO FORM SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: STAPHYLOCOCCUS AUREUS; SOURCE 3 ORGANISM_TAXID: 1280 KEYWDS SYNTHETASE, TRANSFERASE, DIHYDROPTEROATE SYNTHETASE, DHPS, APO FORM, KEYWDS 2 COMPLEX WITH OH-CH2-PTERIN-PYROPHOSPHATE EXPDTA X-RAY DIFFRACTION AUTHOR D.KOSTREWA,C.OEFNER,A.D'ARCY REVDAT 4 07-FEB-24 1AD1 1 REMARK LINK REVDAT 3 24-FEB-09 1AD1 1 VERSN REVDAT 2 01-APR-03 1AD1 1 JRNL REVDAT 1 29-APR-98 1AD1 0 JRNL AUTH I.C.HAMPELE,A.D'ARCY,G.E.DALE,D.KOSTREWA,J.NIELSEN,C.OEFNER, JRNL AUTH 2 M.G.PAGE,H.J.SCHONFELD,D.STUBER,R.L.THEN JRNL TITL STRUCTURE AND FUNCTION OF THE DIHYDROPTEROATE SYNTHASE FROM JRNL TITL 2 STAPHYLOCOCCUS AUREUS. JRNL REF J.MOL.BIOL. V. 268 21 1997 JRNL REFN ISSN 0022-2836 JRNL PMID 9149138 JRNL DOI 10.1006/JMBI.1997.0944 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) : 13.50 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 : 23608 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) : 0.159 REMARK 3 FREE R VALUE : 0.218 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 : 3984 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 10 REMARK 3 SOLVENT ATOMS : 401 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) : 0.010 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 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: REMARK 3 CONVENTIONAL RESTRAINED POSITIONAL AND TEMPERATURE FACTOR REMARK 3 REFINEMENT WITH STEREOCHEMICAL PARAMETERS FROM ENGH & HUBER. REMARK 3 REMARK 3 THE ELECTRON DENSITY OF THE TRIS MOLECULE IS ONLY POORLY REMARK 3 DEFINED. REMARK 4 REMARK 4 1AD1 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_1000170667. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : AUG-96 REMARK 200 TEMPERATURE (KELVIN) : 120 REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : ESRF REMARK 200 BEAMLINE : BM1A REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : NULL REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : NULL REMARK 200 DETECTOR MANUFACTURER : NULL REMARK 200 INTENSITY-INTEGRATION SOFTWARE : NULL REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : NULL REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL 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) : 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: NULL REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.29 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.25 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 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 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 21.09500 REMARK 290 SMTRY3 2 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 300 REMARK: THE ASYMMETRIC UNIT OF THE CRYSTAL CONTAINS ONE DIMER. 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: 3490 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 21540 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -14.0 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 PHE A 266 REMARK 465 SER A 267 REMARK 465 ASP B 15 REMARK 465 SER B 16 REMARK 465 PHE B 17 REMARK 465 SER B 18 REMARK 465 ASP B 19 REMARK 465 GLY B 20 REMARK 465 GLY B 21 REMARK 465 LYS B 22 REMARK 465 PHE B 23 REMARK 465 ASN B 24 REMARK 465 ARG B 52 REMARK 465 PRO B 53 REMARK 465 GLY B 54 REMARK 465 HIS B 55 REMARK 465 GLU B 56 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 18 -71.81 -56.75 REMARK 500 SER A 201 112.30 -35.90 REMARK 500 ASN B 134 35.97 -94.82 REMARK 500 ALA B 173 37.27 38.99 REMARK 500 SER B 201 109.85 -27.02 REMARK 500 ARG B 202 11.12 59.21 REMARK 500 REMARK 500 REMARK: NULL REMARK 620 REMARK 620 METAL COORDINATION REMARK 620 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 620 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K A 268 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL A 75 O REMARK 620 2 PHE A 77 O 88.4 REMARK 620 3 VAL A 79 O 136.4 78.5 REMARK 620 4 HOH A 517 O 80.9 164.0 101.2 REMARK 620 5 HOH A 589 O 147.5 88.8 74.3 106.7 REMARK 620 6 HOH A 594 O 63.2 91.8 156.7 94.0 84.5 REMARK 620 N 1 2 3 4 5 REMARK 620 REMARK 620 COORDINATION ANGLES FOR: M RES CSSEQI METAL REMARK 620 K B 1 K REMARK 620 N RES CSSEQI ATOM REMARK 620 1 VAL B 75 O REMARK 620 2 PHE B 77 O 88.9 REMARK 620 3 VAL B 79 O 135.4 80.8 REMARK 620 4 HOH B 291 O 82.4 168.8 100.6 REMARK 620 5 HOH B 424 O 134.5 122.1 85.6 69.1 REMARK 620 N 1 2 3 4 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K B 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE K A 268 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE TRS A 500 DBREF 1AD1 A 2 267 UNP O05701 DHPS_STAAU 2 267 DBREF 1AD1 B 2 267 UNP O05701 DHPS_STAAU 2 267 SEQRES 1 A 266 THR LYS THR LYS ILE MET GLY ILE LEU ASN VAL THR PRO SEQRES 2 A 266 ASP SER PHE SER ASP GLY GLY LYS PHE ASN ASN VAL GLU SEQRES 3 A 266 SER ALA VAL THR ARG VAL LYS ALA MET MET ASP GLU GLY SEQRES 4 A 266 ALA ASP ILE ILE ASP VAL GLY GLY VAL SER THR ARG PRO SEQRES 5 A 266 GLY HIS GLU MET ILE THR VAL GLU GLU GLU LEU ASN ARG SEQRES 6 A 266 VAL LEU PRO VAL VAL GLU ALA ILE VAL GLY PHE ASP VAL SEQRES 7 A 266 LYS ILE SER VAL ASP THR PHE ARG SER GLU VAL ALA GLU SEQRES 8 A 266 ALA CYS LEU LYS LEU GLY VAL ASP ILE ILE ASN ASP GLN SEQRES 9 A 266 TRP ALA GLY LEU TYR ASP HIS ARG MET PHE GLN VAL VAL SEQRES 10 A 266 ALA LYS TYR ASP ALA GLU ILE VAL LEU MET HIS ASN GLY SEQRES 11 A 266 ASN GLY ASN ARG ASP GLU PRO VAL VAL GLU GLU MET LEU SEQRES 12 A 266 THR SER LEU LEU ALA GLN ALA HIS GLN ALA LYS ILE ALA SEQRES 13 A 266 GLY ILE PRO SER ASN LYS ILE TRP LEU ASP PRO GLY ILE SEQRES 14 A 266 GLY PHE ALA LYS THR ARG ASN GLU GLU ALA GLU VAL MET SEQRES 15 A 266 ALA ARG LEU ASP GLU LEU VAL ALA THR GLU TYR PRO VAL SEQRES 16 A 266 LEU LEU ALA THR SER ARG LYS ARG PHE THR LYS GLU MET SEQRES 17 A 266 MET GLY TYR ASP THR THR PRO VAL GLU ARG ASP GLU VAL SEQRES 18 A 266 THR ALA ALA THR THR ALA TYR GLY ILE MET LYS GLY VAL SEQRES 19 A 266 ARG ALA VAL ARG VAL HIS ASN VAL GLU LEU ASN ALA LYS SEQRES 20 A 266 LEU ALA LYS GLY ILE ASP PHE LEU LYS GLU ASN GLU ASN SEQRES 21 A 266 ALA ARG HIS ASN PHE SER SEQRES 1 B 266 THR LYS THR LYS ILE MET GLY ILE LEU ASN VAL THR PRO SEQRES 2 B 266 ASP SER PHE SER ASP GLY GLY LYS PHE ASN ASN VAL GLU SEQRES 3 B 266 SER ALA VAL THR ARG VAL LYS ALA MET MET ASP GLU GLY SEQRES 4 B 266 ALA ASP ILE ILE ASP VAL GLY GLY VAL SER THR ARG PRO SEQRES 5 B 266 GLY HIS GLU MET ILE THR VAL GLU GLU GLU LEU ASN ARG SEQRES 6 B 266 VAL LEU PRO VAL VAL GLU ALA ILE VAL GLY PHE ASP VAL SEQRES 7 B 266 LYS ILE SER VAL ASP THR PHE ARG SER GLU VAL ALA GLU SEQRES 8 B 266 ALA CYS LEU LYS LEU GLY VAL ASP ILE ILE ASN ASP GLN SEQRES 9 B 266 TRP ALA GLY LEU TYR ASP HIS ARG MET PHE GLN VAL VAL SEQRES 10 B 266 ALA LYS TYR ASP ALA GLU ILE VAL LEU MET HIS ASN GLY SEQRES 11 B 266 ASN GLY ASN ARG ASP GLU PRO VAL VAL GLU GLU MET LEU SEQRES 12 B 266 THR SER LEU LEU ALA GLN ALA HIS GLN ALA LYS ILE ALA SEQRES 13 B 266 GLY ILE PRO SER ASN LYS ILE TRP LEU ASP PRO GLY ILE SEQRES 14 B 266 GLY PHE ALA LYS THR ARG ASN GLU GLU ALA GLU VAL MET SEQRES 15 B 266 ALA ARG LEU ASP GLU LEU VAL ALA THR GLU TYR PRO VAL SEQRES 16 B 266 LEU LEU ALA THR SER ARG LYS ARG PHE THR LYS GLU MET SEQRES 17 B 266 MET GLY TYR ASP THR THR PRO VAL GLU ARG ASP GLU VAL SEQRES 18 B 266 THR ALA ALA THR THR ALA TYR GLY ILE MET LYS GLY VAL SEQRES 19 B 266 ARG ALA VAL ARG VAL HIS ASN VAL GLU LEU ASN ALA LYS SEQRES 20 B 266 LEU ALA LYS GLY ILE ASP PHE LEU LYS GLU ASN GLU ASN SEQRES 21 B 266 ALA ARG HIS ASN PHE SER HET K A 268 1 HET TRS A 500 8 HET K B 1 1 HETNAM K POTASSIUM ION HETNAM TRS 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL HETSYN TRS TRIS BUFFER FORMUL 3 K 2(K 1+) FORMUL 4 TRS C4 H12 N O3 1+ FORMUL 6 HOH *401(H2 O) HELIX 1 1 PRO A 14 SER A 16 5 3 HELIX 2 2 VAL A 26 ASP A 38 1 13 HELIX 3 3 VAL A 60 ILE A 74 1 15 HELIX 4 4 SER A 88 LYS A 96 1 9 HELIX 5 5 HIS A 112 LYS A 120 5 9 HELIX 6 6 VAL A 139 ILE A 156 1 18 HELIX 7 7 SER A 161 LYS A 163 5 3 HELIX 8 8 ARG A 176 ALA A 184 1 9 HELIX 9 9 LEU A 186 THR A 192 1 7 HELIX 10 10 ARG A 204 MET A 209 1 6 HELIX 11 11 PRO A 216 LYS A 233 5 18 HELIX 12 12 VAL A 243 HIS A 264 1 22 HELIX 13 13 VAL B 26 ASP B 38 1 13 HELIX 14 14 VAL B 60 ILE B 74 1 15 HELIX 15 15 SER B 88 LEU B 97 1 10 HELIX 16 16 HIS B 112 TYR B 121 5 10 HELIX 17 17 VAL B 139 ALA B 157 1 19 HELIX 18 18 SER B 161 LYS B 163 5 3 HELIX 19 19 ARG B 176 MET B 183 1 8 HELIX 20 20 LEU B 186 THR B 192 1 7 HELIX 21 21 ARG B 204 MET B 210 1 7 HELIX 22 22 PRO B 216 MET B 232 5 17 HELIX 23 23 VAL B 243 HIS B 264 1 22 SHEET 1 A 7 ALA A 237 VAL A 240 0 SHEET 2 A 7 LYS A 5 ASN A 11 1 N LYS A 5 O VAL A 238 SHEET 3 A 7 ILE A 43 GLY A 47 1 N ILE A 43 O GLY A 8 SHEET 4 A 7 LYS A 80 ASP A 84 1 N LYS A 80 O ILE A 44 SHEET 5 A 7 ILE A 101 ASP A 104 1 N ILE A 101 O VAL A 83 SHEET 6 A 7 GLU A 124 MET A 128 1 N GLU A 124 O ILE A 102 SHEET 7 A 7 ILE A 164 ASP A 167 1 N TRP A 165 O ILE A 125 SHEET 1 B 7 ALA B 237 VAL B 240 0 SHEET 2 B 7 LYS B 5 ASN B 11 1 N LYS B 5 O VAL B 238 SHEET 3 B 7 ILE B 43 GLY B 47 1 N ILE B 43 O GLY B 8 SHEET 4 B 7 LYS B 80 ASP B 84 1 N LYS B 80 O ILE B 44 SHEET 5 B 7 ILE B 101 ASP B 104 1 N ILE B 101 O VAL B 83 SHEET 6 B 7 GLU B 124 MET B 128 1 N GLU B 124 O ILE B 102 SHEET 7 B 7 ILE B 164 ASP B 167 1 N TRP B 165 O ILE B 125 LINK O VAL A 75 K K A 268 1555 1555 2.83 LINK O PHE A 77 K K A 268 1555 1555 2.71 LINK O VAL A 79 K K A 268 1555 1555 2.68 LINK K K A 268 O HOH A 517 1555 1555 2.89 LINK K K A 268 O HOH A 589 1555 1555 3.07 LINK K K A 268 O HOH A 594 1555 1555 3.18 LINK K K B 1 O VAL B 75 1555 1555 2.81 LINK K K B 1 O PHE B 77 1555 1555 2.71 LINK K K B 1 O VAL B 79 1555 1555 2.58 LINK K K B 1 O HOH B 291 1555 1555 2.73 LINK K K B 1 O HOH B 424 1555 1555 3.44 SITE 1 AC1 4 VAL B 75 PHE B 77 VAL B 79 HOH B 291 SITE 1 AC2 5 VAL A 75 PHE A 77 VAL A 79 HOH A 517 SITE 2 AC2 5 HOH A 589 SITE 1 AC3 1 LYS A 96 CRYST1 64.470 42.190 101.320 90.00 106.33 90.00 P 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 0.015511 0.000000 0.004545 0.00000 SCALE2 0.000000 0.023702 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010285 0.00000