HEADER APOPTOSIS 09-FEB-11 3QO4 TITLE THE CRYSTAL STRUCTURE OF DEATH RECEPTOR 6 COMPND MOL_ID: 1; COMPND 2 MOLECULE: TUMOR NECROSIS FACTOR RECEPTOR SUPERFAMILY MEMBER 21; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: UNP RESIDUES 42-218; COMPND 5 SYNONYM: DEATH RECEPTOR 6; COMPND 6 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: TNFRSF21, DR6, UNQ437/PRO868; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 EXPRESSION_SYSTEM_STRAIN: ORIGAMI2(DE3) KEYWDS TUMOR NECROSIS FACTOR RECEPTOR (TNFR), APOPTOSIS, ALZHEIMER S KEYWDS 2 DISEASE, LIGAND-RECEPTOR-RECOGNITION EXPDTA X-RAY DIFFRACTION AUTHOR M.KUESTER,S.KEMMERZEHL,S.O.DAHMS,D.ROESER,M.E.THAN REVDAT 3 16-OCT-24 3QO4 1 REMARK SEQADV REVDAT 2 29-FEB-12 3QO4 1 JRNL VERSN REVDAT 1 18-MAY-11 3QO4 0 JRNL AUTH M.KUESTER,S.KEMMERZEHL,S.O.DAHMS,D.ROESER,M.E.THAN JRNL TITL THE CRYSTAL STRUCTURE OF DEATH RECEPTOR 6 (DR6): A POTENTIAL JRNL TITL 2 RECEPTOR OF THE AMYLOID PRECURSOR PROTEIN (APP). JRNL REF J.MOL.BIOL. V. 409 189 2011 JRNL REFN ISSN 0022-2836 JRNL PMID 21463639 JRNL DOI 10.1016/J.JMB.2011.03.048 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 : ENGH & HUBER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 29.70 REMARK 3 DATA CUTOFF (SIGMA(F)) : NULL REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 17891 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) : 0.215 REMARK 3 FREE R VALUE : 0.261 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 917 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) : 2.20 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.24 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : NULL REMARK 3 BIN R VALUE (WORKING SET) : 0.3140 REMARK 3 BIN FREE R VALUE : 0.3610 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 : 1222 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 9 REMARK 3 SOLVENT ATOMS : 211 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 34.10 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) : 0.009 REMARK 3 BOND ANGLES (DEGREES) : 1.610 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 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 3QO4 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 10-FEB-11. REMARK 100 THE DEPOSITION ID IS D_1000063889. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 03-JUN-10 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 5.6 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : BESSY REMARK 200 BEAMLINE : 14.2 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.918, 1.03936, 1.04008, 1.04064 REMARK 200 MONOCHROMATOR : DOUBLE CRYSTAL MONOCHROMATOR REMARK 200 OPTICS : DOUBLE CRYSTAL MONOCHROMATOR REMARK 200 WITH TWO SETS OF MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : RAYONIX MX-225 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MOSFLM REMARK 200 DATA SCALING SOFTWARE : SCALA REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 20455 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 29.982 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.6 REMARK 200 DATA REDUNDANCY : 3.200 REMARK 200 R MERGE (I) : 0.06400 REMARK 200 R SYM (I) : 0.06400 REMARK 200 FOR THE DATA SET : 11.2000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.10 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.21 REMARK 200 COMPLETENESS FOR SHELL (%) : 98.2 REMARK 200 DATA REDUNDANCY IN SHELL : 2.70 REMARK 200 R MERGE FOR SHELL (I) : 0.32500 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.000 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: MAD REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MAD REMARK 200 SOFTWARE USED: SHARP REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 70.63 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 4.19 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 0.1 M SODIUM CITRATE, 30% PEG4000, 0.5 REMARK 280 M AMMONIUMACETATE , PH 5.6, VAPOR DIFFUSION, SITTING DROP, REMARK 280 TEMPERATURE 293K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 61 2 2 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 7555 Y,X,-Z+1/3 REMARK 290 8555 X-Y,-Y,-Z REMARK 290 9555 -X,-X+Y,-Z+2/3 REMARK 290 10555 -Y,-X,-Z+5/6 REMARK 290 11555 -X+Y,Y,-Z+1/2 REMARK 290 12555 X,X-Y,-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 62.61467 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 125.22933 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 93.92200 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 156.53667 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 31.30733 REMARK 290 SMTRY1 7 -0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 7 0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 62.61467 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 9 -0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 9 -0.866025 0.500000 0.000000 0.00000 REMARK 290 SMTRY3 9 0.000000 0.000000 -1.000000 125.22933 REMARK 290 SMTRY1 10 0.500000 -0.866025 0.000000 0.00000 REMARK 290 SMTRY2 10 -0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 10 0.000000 0.000000 -1.000000 156.53667 REMARK 290 SMTRY1 11 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 11 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 11 0.000000 0.000000 -1.000000 93.92200 REMARK 290 SMTRY1 12 0.500000 0.866025 0.000000 0.00000 REMARK 290 SMTRY2 12 0.866025 -0.500000 0.000000 0.00000 REMARK 290 SMTRY3 12 0.000000 0.000000 -1.000000 31.30733 REMARK 290 REMARK 290 REMARK: NULL REMARK 300 REMARK 300 BIOMOLECULE: 1, 2 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: CONSIDERING A RATHER SMALL INTERFACE AREA OF 709 A2, ONLY REMARK 300 TWO HYDROGEN BONDS AS ADDITIONAL STABILIZING CONTACTS AND MANY REMARK 300 CONTACT MEDIATING WATER MOLECULES, WE CONCLUDE HOWEVER, THAT THE REMARK 300 INTERACTION DETERMINED BY THE PISA SOFTWARE IS NOT OF PHYSIOLOGICAL REMARK 300 RELEVANCE BUT RATHER IMPORTANT FOR STABILIZING THE DR6-CRD CRYSTALS 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 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 REMARK 350 BIOMOLECULE: 2 REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 2120 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19900 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -46.0 KCAL/MOL 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 0.500000 0.866025 0.000000 0.00000 REMARK 350 BIOMT2 2 0.866025 -0.500000 0.000000 0.00000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 31.30733 REMARK 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 HOH A 293 LIES ON A SPECIAL POSITION. 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 GLY A 38 REMARK 465 SER A 39 REMARK 465 HIS A 40 REMARK 465 MET A 41 REMARK 465 GLN A 42 REMARK 465 PRO A 43 REMARK 465 GLU A 44 REMARK 465 GLN A 45 REMARK 465 LYS A 46 REMARK 465 ALA A 47 REMARK 465 SER A 48 REMARK 465 ASN A 49 REMARK 465 THR A 213 REMARK 465 LEU A 214 REMARK 465 PRO A 215 REMARK 465 SER A 216 REMARK 465 PHE A 217 REMARK 465 SER A 218 REMARK 480 REMARK 480 ZERO OCCUPANCY ATOM REMARK 480 THE FOLLOWING RESIDUES HAVE ATOMS MODELED WITH ZERO REMARK 480 OCCUPANCY. THE LOCATION AND PROPERTIES OF THESE ATOMS REMARK 480 MAY NOT BE RELIABLE. (M=MODEL NUMBER; RES=RESIDUE NAME; REMARK 480 C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; I=INSERTION CODE): REMARK 480 M RES C SSEQI ATOMS REMARK 480 LYS A 105 CE NZ REMARK 480 LEU A 126 CG CD1 CD2 REMARK 480 ASN A 141 CB CG OD1 ND2 REMARK 480 LYS A 158 CE NZ REMARK 480 GLU A 164 CD OE1 OE2 REMARK 480 LYS A 169 CG CD CE NZ REMARK 480 ARG A 173 CG CD NE CZ NH1 NH2 REMARK 480 LYS A 185 CE NZ REMARK 480 LEU A 193 CD1 CD2 REMARK 480 VAL A 198 CG1 CG2 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 181 142.72 -173.17 REMARK 500 SER A 194 0.76 -61.04 REMARK 500 REMARK 500 REMARK: NULL REMARK 650 REMARK 650 HELIX DETERMINATION METHOD: AUTHOR DETERMINED BY USING PYMOL'S REMARK 650 DSS-FUNCTION REMARK 700 REMARK 700 SHEET DETERMINATION METHOD: AUTHOR DETERMINED BY USING PYMOL'S REMARK 700 DSS-FUNCTION REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE ACT A 1 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 2 DBREF 3QO4 A 42 218 UNP O75509 TNR21_HUMAN 42 218 SEQADV 3QO4 GLY A 38 UNP O75509 EXPRESSION TAG SEQADV 3QO4 SER A 39 UNP O75509 EXPRESSION TAG SEQADV 3QO4 HIS A 40 UNP O75509 EXPRESSION TAG SEQADV 3QO4 MET A 41 UNP O75509 EXPRESSION TAG SEQRES 1 A 181 GLY SER HIS MET GLN PRO GLU GLN LYS ALA SER ASN LEU SEQRES 2 A 181 ILE GLY THR TYR ARG HIS VAL ASP ARG ALA THR GLY GLN SEQRES 3 A 181 VAL LEU THR CYS ASP LYS CYS PRO ALA GLY THR TYR VAL SEQRES 4 A 181 SER GLU HIS CYS THR ASN THR SER LEU ARG VAL CYS SER SEQRES 5 A 181 SER CYS PRO VAL GLY THR PHE THR ARG HIS GLU ASN GLY SEQRES 6 A 181 ILE GLU LYS CYS HIS ASP CYS SER GLN PRO CYS PRO TRP SEQRES 7 A 181 PRO MET ILE GLU LYS LEU PRO CYS ALA ALA LEU THR ASP SEQRES 8 A 181 ARG GLU CYS THR CYS PRO PRO GLY MET PHE GLN SER ASN SEQRES 9 A 181 ALA THR CYS ALA PRO HIS THR VAL CYS PRO VAL GLY TRP SEQRES 10 A 181 GLY VAL ARG LYS LYS GLY THR GLU THR GLU ASP VAL ARG SEQRES 11 A 181 CYS LYS GLN CYS ALA ARG GLY THR PHE SER ASP VAL PRO SEQRES 12 A 181 SER SER VAL MET LYS CYS LYS ALA TYR THR ASP CYS LEU SEQRES 13 A 181 SER GLN ASN LEU VAL VAL ILE LYS PRO GLY THR LYS GLU SEQRES 14 A 181 THR ASP ASN VAL CYS GLY THR LEU PRO SER PHE SER HET ACT A 1 4 HET SO4 A 2 5 HETNAM ACT ACETATE ION HETNAM SO4 SULFATE ION FORMUL 2 ACT C2 H3 O2 1- FORMUL 3 SO4 O4 S 2- FORMUL 4 HOH *211(H2 O) HELIX 1 1 CYS A 192 GLN A 195 5 4 SHEET 1 A 2 THR A 53 ASP A 58 0 SHEET 2 A 2 GLY A 62 ASP A 68 -1 O LEU A 65 N HIS A 56 SHEET 1 B 2 THR A 74 GLU A 78 0 SHEET 2 B 2 VAL A 87 SER A 90 -1 O VAL A 87 N GLU A 78 SHEET 1 C 2 ILE A 118 LEU A 121 0 SHEET 2 C 2 GLU A 130 THR A 132 -1 O GLU A 130 N LYS A 120 SHEET 1 D 2 MET A 137 SER A 140 0 SHEET 2 D 2 THR A 143 PRO A 146 -1 O THR A 143 N SER A 140 SHEET 1 E 2 TRP A 154 LYS A 158 0 SHEET 2 E 2 ARG A 167 GLN A 170 -1 O ARG A 167 N ARG A 157 SHEET 1 F 2 VAL A 198 LYS A 201 0 SHEET 2 F 2 VAL A 210 GLY A 212 -1 O GLY A 212 N VAL A 198 SSBOND 1 CYS A 67 CYS A 80 1555 1555 2.05 SSBOND 2 CYS A 70 CYS A 88 1555 1555 2.03 SSBOND 3 CYS A 91 CYS A 106 1555 1555 2.05 SSBOND 4 CYS A 109 CYS A 123 1555 1555 2.02 SSBOND 5 CYS A 113 CYS A 131 1555 1555 2.02 SSBOND 6 CYS A 133 CYS A 144 1555 1555 2.03 SSBOND 7 CYS A 150 CYS A 168 1555 1555 2.03 SSBOND 8 CYS A 171 CYS A 186 1555 1555 2.03 SSBOND 9 CYS A 192 CYS A 211 1555 1555 2.02 CISPEP 1 TRP A 115 PRO A 116 0 0.16 SITE 1 AC1 4 TYR A 54 ARG A 55 LYS A 201 HOH A 355 SITE 1 AC2 5 THR A 97 ARG A 98 HIS A 99 HIS A 107 SITE 2 AC2 5 HOH A 274 CRYST1 77.910 77.910 187.844 90.00 90.00 120.00 P 61 2 2 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 0.012835 0.007410 0.000000 0.00000 SCALE2 0.000000 0.014821 0.000000 0.00000 SCALE3 0.000000 0.000000 0.005324 0.00000