HEADER TRANSFERASE 14-MAY-01 1INJ TITLE CRYSTAL STRUCTURE OF THE APO FORM OF 4-DIPHOSPHOCYTIDYL-2-C- TITLE 2 METHYLERYTHRITOL (CDP-ME) SYNTHETASE (YGBP) INVOLVED IN MEVALONATE TITLE 3 INDEPENDENT ISOPRENOID BIOSYNTHESIS COMPND MOL_ID: 1; COMPND 2 MOLECULE: 4-DIPHOSPHOCYTIDYL-2-C-METHYLERYTHRITOL SYNTHETASE; COMPND 3 CHAIN: A; COMPND 4 EC: 2.7.7.-; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: ESCHERICHIA COLI; SOURCE 3 ORGANISM_TAXID: 83333; SOURCE 4 STRAIN: K12; SOURCE 5 GENE: ISPD; 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: PHIS8 KEYWDS YGBP, CYTIDYLYLTRANSFERASE, DEOXYXYLULOSE-5-PHOSPHATE PATHWAY (DXP), KEYWDS 2 ISOPRENOID BIOSYNTHESIS, APO FORM, TRANSFERASE EXPDTA X-RAY DIFFRACTION AUTHOR S.B.RICHARD,M.E.BOWMAN,W.KWIATKOWSKI,I.KANG,C.CHOW,A.LILLO,D.E.CANE, AUTHOR 2 J.P.NOEL REVDAT 5 16-AUG-23 1INJ 1 REMARK LINK REVDAT 4 13-JUL-11 1INJ 1 VERSN REVDAT 3 24-FEB-09 1INJ 1 VERSN REVDAT 2 01-APR-03 1INJ 1 JRNL REVDAT 1 11-JUL-01 1INJ 0 JRNL AUTH S.B.RICHARD,M.E.BOWMAN,W.KWIATKOWSKI,I.KANG,C.CHOW, JRNL AUTH 2 A.M.LILLO,D.E.CANE,J.P.NOEL JRNL TITL STRUCTURE OF 4-DIPHOSPHOCYTIDYL-2-C- METHYLERYTHRITOL JRNL TITL 2 SYNTHETASE INVOLVED IN MEVALONATE- INDEPENDENT ISOPRENOID JRNL TITL 3 BIOSYNTHESIS. JRNL REF NAT.STRUCT.BIOL. V. 8 641 2001 JRNL REFN ISSN 1072-8368 JRNL PMID 11427897 JRNL DOI 10.1038/89691 REMARK 2 REMARK 2 RESOLUTION. 1.55 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) : 1.55 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 33.93 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1135780.990 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 90.4 REMARK 3 NUMBER OF REFLECTIONS : 30590 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : THROUGHOUT REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.245 REMARK 3 FREE R VALUE : 0.265 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.100 REMARK 3 FREE R VALUE TEST SET COUNT : 1549 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.007 REMARK 3 REMARK 3 FIT IN THE HIGHEST RESOLUTION BIN. REMARK 3 TOTAL NUMBER OF BINS USED : 6 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 1.55 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.65 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 62.60 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3329 REMARK 3 BIN R VALUE (WORKING SET) : 0.3040 REMARK 3 BIN FREE R VALUE : 0.3210 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 178 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.024 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1624 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 370 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 22.20 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -4.74000 REMARK 3 B22 (A**2) : 4.72000 REMARK 3 B33 (A**2) : 0.01000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.61000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.23 REMARK 3 ESD FROM SIGMAA (A) : 0.16 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) : 0.26 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.19 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.005 REMARK 3 BOND ANGLES (DEGREES) : 1.200 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.820 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : RESTRAINED REMARK 3 REMARK 3 ISOTROPIC THERMAL FACTOR RESTRAINTS. RMS SIGMA REMARK 3 MAIN-CHAIN BOND (A**2) : 1.640 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.510 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.270 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 3.370 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.36 REMARK 3 BSOL : 43.79 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 1INJ COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 16-MAY-01. REMARK 100 THE DEPOSITION ID IS D_1000013429. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-JUN-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 6.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SSRL REMARK 200 BEAMLINE : BL9-2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.08 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : DOUBLE CRYSTAL MONOCHROMATOR REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 4 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 30652 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.550 REMARK 200 RESOLUTION RANGE LOW (A) : 90.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.3 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : 2.60000 REMARK 200 FOR THE DATA SET : 32.7000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.55 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.58 REMARK 200 COMPLETENESS FOR SHELL (%) : 51.8 REMARK 200 DATA REDUNDANCY IN SHELL : 2.10 REMARK 200 R MERGE FOR SHELL (I) : 0.26800 REMARK 200 R SYM FOR SHELL (I) : 26.8000 REMARK 200 FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: FOURIER SYNTHESIS REMARK 200 SOFTWARE USED: CNS REMARK 200 STARTING MODEL: PDB ENTRY 1I52 REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.92 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.27 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PEG 8000, CALCIUM ACETATE, MAGNESIUM REMARK 280 CHLORIDE, DTT, PH 6.5, VAPOR DIFFUSION, HANGING DROP, REMARK 280 TEMPERATURE 279K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,Y,-Z REMARK 290 3555 X+1/2,Y+1/2,Z REMARK 290 4555 -X+1/2,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 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 3 1.000000 0.000000 0.000000 65.14850 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 23.66400 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 65.14850 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 23.66400 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: DIMERIC 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 -1.000000 0.000000 0.000000 127.51654 REMARK 350 BIOMT2 2 0.000000 1.000000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 38.04453 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 465 THR A 3 REMARK 465 THR A 4 REMARK 465 GLY A 16 REMARK 465 PHE A 17 REMARK 465 GLY A 18 REMARK 465 ARG A 19 REMARK 465 ARG A 20 REMARK 465 MET A 21 REMARK 465 GLN A 22 REMARK 465 THR A 23 REMARK 465 GLU A 24 REMARK 465 CYS A 25 REMARK 465 PRO A 26 REMARK 465 ARG A 229 REMARK 465 THR A 230 REMARK 465 ILE A 231 REMARK 465 HIS A 232 REMARK 465 GLN A 233 REMARK 465 GLU A 234 REMARK 465 ASN A 235 REMARK 465 THR A 236 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 228 OG1 CG2 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 1281 O HOH A 1281 2656 2.01 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 ASN A 149 49.05 -85.54 REMARK 500 LEU A 164 -166.92 -125.16 REMARK 500 THR A 189 -82.37 -110.83 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 CA A1001 CA REMARK 620 N RES CSSEQI ATOM REMARK 620 1 LEU A 46 O REMARK 620 2 GLU A 172 OE1 147.2 REMARK 620 3 GLU A 172 OE2 157.5 54.2 REMARK 620 4 HOH A1004 O 92.1 82.2 83.6 REMARK 620 5 HOH A1122 O 87.3 105.6 91.5 166.0 REMARK 620 6 HOH A1124 O 74.6 76.5 127.8 107.4 86.0 REMARK 620 7 HOH A1128 O 79.5 130.7 78.0 81.1 85.1 152.9 REMARK 620 N 1 2 3 4 5 6 REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CA A 1001 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1I52 RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF 4-DIPHOSPHOCYTIDYL-2-C-METHYLERYTHRITOL (CDP- REMARK 900 ME) SYNTHASE (YGBP) INVOLVED IN MEVALONATE INDEPENDENT ISOPRENOID REMARK 900 BIOSYNTHESIS, COMPLEXED WITH CTP AND MG2+ REMARK 900 RELATED ID: 1INI RELATED DB: PDB REMARK 900 CRYSTAL STRUCTURE OF 4-DIPHOSPHOCYTIDYL-2-C-METHYLERYTHRITOL (CDP- REMARK 900 ME) SYNTHASE (YGBP) INVOLVED IN MEVALONATE INDEPENDENT ISOPRENOID REMARK 900 BIOSYNTHESIS, COMPLEXED WITH CDPME AND MG2+ DBREF 1INJ A 1 236 UNP Q46893 ISPD_ECOLI 1 236 SEQRES 1 A 236 MET ALA THR THR HIS LEU ASP VAL CYS ALA VAL VAL PRO SEQRES 2 A 236 ALA ALA GLY PHE GLY ARG ARG MET GLN THR GLU CYS PRO SEQRES 3 A 236 LYS GLN TYR LEU SER ILE GLY ASN GLN THR ILE LEU GLU SEQRES 4 A 236 HIS SER VAL HIS ALA LEU LEU ALA HIS PRO ARG VAL LYS SEQRES 5 A 236 ARG VAL VAL ILE ALA ILE SER PRO GLY ASP SER ARG PHE SEQRES 6 A 236 ALA GLN LEU PRO LEU ALA ASN HIS PRO GLN ILE THR VAL SEQRES 7 A 236 VAL ASP GLY GLY ASP GLU ARG ALA ASP SER VAL LEU ALA SEQRES 8 A 236 GLY LEU LYS ALA ALA GLY ASP ALA GLN TRP VAL LEU VAL SEQRES 9 A 236 HIS ASP ALA ALA ARG PRO CYS LEU HIS GLN ASP ASP LEU SEQRES 10 A 236 ALA ARG LEU LEU ALA LEU SER GLU THR SER ARG THR GLY SEQRES 11 A 236 GLY ILE LEU ALA ALA PRO VAL ARG ASP THR MET LYS ARG SEQRES 12 A 236 ALA GLU PRO GLY LYS ASN ALA ILE ALA HIS THR VAL ASP SEQRES 13 A 236 ARG ASN GLY LEU TRP HIS ALA LEU THR PRO GLN PHE PHE SEQRES 14 A 236 PRO ARG GLU LEU LEU HIS ASP CYS LEU THR ARG ALA LEU SEQRES 15 A 236 ASN GLU GLY ALA THR ILE THR ASP GLU ALA SER ALA LEU SEQRES 16 A 236 GLU TYR CYS GLY PHE HIS PRO GLN LEU VAL GLU GLY ARG SEQRES 17 A 236 ALA ASP ASN ILE LYS VAL THR ARG PRO GLU ASP LEU ALA SEQRES 18 A 236 LEU ALA GLU PHE TYR LEU THR ARG THR ILE HIS GLN GLU SEQRES 19 A 236 ASN THR HET CA A1001 1 HETNAM CA CALCIUM ION FORMUL 2 CA CA 2+ FORMUL 3 HOH *370(H2 O) HELIX 1 1 THR A 36 ALA A 47 1 12 HELIX 2 2 ARG A 64 LEU A 68 5 5 HELIX 3 3 LEU A 68 HIS A 73 5 6 HELIX 4 4 GLU A 84 ALA A 95 1 12 HELIX 5 5 HIS A 113 ALA A 122 1 10 HELIX 6 6 LEU A 123 THR A 126 5 4 HELIX 7 7 ARG A 171 GLU A 184 1 14 HELIX 8 8 ASP A 190 CYS A 198 1 9 HELIX 9 9 ARG A 216 THR A 228 1 13 SHEET 1 A 7 ILE A 76 ASP A 80 0 SHEET 2 A 7 VAL A 51 ILE A 58 1 O VAL A 54 N THR A 77 SHEET 3 A 7 VAL A 8 ALA A 14 1 O VAL A 8 N LYS A 52 SHEET 4 A 7 TRP A 101 VAL A 104 1 O TRP A 101 N CYS A 9 SHEET 5 A 7 TRP A 161 PRO A 170 -1 O GLN A 167 N VAL A 104 SHEET 6 A 7 GLY A 131 PRO A 136 -1 O GLY A 131 N PHE A 168 SHEET 7 A 7 GLN A 203 GLU A 206 1 O GLN A 203 N ILE A 132 SHEET 1 B 2 MET A 141 ALA A 144 0 SHEET 2 B 2 ILE A 151 VAL A 155 -1 N ALA A 152 O ARG A 143 LINK O LEU A 46 CA CA A1001 1555 1555 2.31 LINK OE1 GLU A 172 CA CA A1001 4556 1555 2.45 LINK OE2 GLU A 172 CA CA A1001 4556 1555 2.36 LINK CA CA A1001 O HOH A1004 1555 1555 2.37 LINK CA CA A1001 O HOH A1122 1555 1555 2.29 LINK CA CA A1001 O HOH A1124 1555 1555 2.31 LINK CA CA A1001 O HOH A1128 1555 1555 2.39 CISPEP 1 THR A 165 PRO A 166 0 1.00 SITE 1 AC1 6 LEU A 46 GLU A 172 HOH A1004 HOH A1122 SITE 2 AC1 6 HOH A1124 HOH A1128 CRYST1 130.297 47.328 38.146 90.00 94.18 90.00 C 1 2 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 0.007675 0.000000 0.000561 0.00000 SCALE2 0.000000 0.021129 0.000000 0.00000 SCALE3 0.000000 0.000000 0.026285 0.00000