HEADER SIGNALLING PROTEIN 03-JUL-96 1EXT TITLE EXTRACELLULAR DOMAIN OF THE 55KDA TUMOR NECROSIS FACTOR RECEPTOR. TITLE 2 CRYSTALLIZED AT PH3.7 IN P 21 21 21. COMPND MOL_ID: 1; COMPND 2 MOLECULE: TUMOR NECROSIS FACTOR RECEPTOR; COMPND 3 CHAIN: A, B; COMPND 4 FRAGMENT: EXTRACELLULAR DOMAIN; COMPND 5 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 OTHER_DETAILS: THE CONSTRUCT CONTAINS RESIDUES 12 TO 172 OF THE SOURCE 8 MATURE SEQUENCE OF THE ENTIRE RECEPTOR. RESIDUE 11 IS MUTATED TO MET SOURCE 9 AS A RESULT OF THE EXPRESSION SYSTEM KEYWDS BINDING PROTEIN, CYTOKINE, SIGNALLING PROTEIN EXPDTA X-RAY DIFFRACTION AUTHOR J.H.NAISMITH,S.R.SPRANG REVDAT 5 13-NOV-24 1EXT 1 REMARK REVDAT 4 09-AUG-23 1EXT 1 REMARK LINK REVDAT 3 24-FEB-09 1EXT 1 VERSN REVDAT 2 30-SEP-03 1EXT 1 DBREF REVDAT 1 11-JAN-97 1EXT 0 JRNL AUTH J.H.NAISMITH,T.Q.DEVINE,T.KOHNO,S.R.SPRANG JRNL TITL STRUCTURES OF THE EXTRACELLULAR DOMAIN OF THE TYPE I TUMOR JRNL TITL 2 NECROSIS FACTOR RECEPTOR. JRNL REF STRUCTURE V. 4 1251 1996 JRNL REFN ISSN 0969-2126 JRNL PMID 8939750 JRNL DOI 10.1016/S0969-2126(96)00134-7 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.H.NAISMITH,T.Q.DEVINE,B.J.BRANDHUBER,S.R.SPRANG REMARK 1 TITL CRYSTALLOGRAPHIC EVIDENCE FOR DIMERIZATION OF UNLIGANDED REMARK 1 TITL 2 TUMOR NECROSIS FACTOR RECEPTOR REMARK 1 REF J.BIOL.CHEM. V. 270 13303 1995 REMARK 1 REFN ISSN 0021-9258 REMARK 1 REFERENCE 2 REMARK 1 AUTH L.E.RODSETH,B.BRANDHUBER,T.Q.DEVINE,M.J.ECK,K.HALE, REMARK 1 AUTH 2 J.H.NAISMITH,S.R.SPRANG REMARK 1 TITL TWO CRYSTAL FORMS OF THE EXTRACELLULAR DOMAIN OF TYPE I REMARK 1 TITL 2 TUMOR NECROSIS FACTOR RECEPTOR REMARK 1 REF J.MOL.BIOL. V. 239 332 1994 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 3 REMARK 1 AUTH D.W.BANNER,A.D'ARCY,W.JANES,R.GENTZ,H.J.SCHOENFELD,C.BROGER, REMARK 1 AUTH 2 H.LOETSCHER,W.LESSLAUER REMARK 1 TITL CRYSTAL STRUCTURE OF THE SOLUBLE HUMAN 55 KD TNF REMARK 1 TITL 2 RECEPTOR-HUMAN TNF BETA COMPLEX: IMPLICATIONS FOR TNF REMARK 1 TITL 3 RECEPTOR ACTIVATION REMARK 1 REF CELL(CAMBRIDGE,MASS.) V. 73 431 1993 REMARK 1 REFN ISSN 0092-8674 REMARK 2 REMARK 2 RESOLUTION. 1.85 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.1 REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.85 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 8.00 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 : 36977 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : FREE R REMARK 3 FREE R VALUE TEST SET SELECTION : RANDOM REMARK 3 R VALUE (WORKING SET) : 0.203 REMARK 3 FREE R VALUE : 0.243 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 3685 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 : 2471 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 16 REMARK 3 SOLVENT ATOMS : 400 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 19.00 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) : 1.683 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.29 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.519 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 ATOMS WITH ZERO OCCUPANCY ARE STEREOCHEMICALLY MODELED REMARK 3 (68 OUT OF 2162) AND WERE NOT LOCATED IN EXPERIMENTAL REMARK 3 MAPS. REMARK 4 REMARK 4 1EXT 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_1000173189. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 15-MAR-94 REMARK 200 TEMPERATURE (KELVIN) : 123 REMARK 200 PH : 3.7 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : SRS REMARK 200 BEAMLINE : PX9.5 REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.992 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 36977 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 97.0 REMARK 200 DATA REDUNDANCY : 6.000 REMARK 200 R MERGE (I) : 0.05100 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : NULL REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.85 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.93 REMARK 200 COMPLETENESS FOR SHELL (%) : 77.0 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 <I/SIGMA(I)> FOR SHELL : NULL REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: 1NCF REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 3.03 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CRYSTALLIZED AT PH3.7 IN P 21 21 21. REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 21 21 21 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X+1/2,-Y,Z+1/2 REMARK 290 3555 -X,Y+1/2,-Z+1/2 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 39.40500 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 33.95000 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 41.53000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 33.95000 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 39.40500 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 41.53000 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 SOFTWARE DETERMINED QUATERNARY STRUCTURE: DIMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 3300 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20190 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -51.0 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 MET A 11 REMARK 465 ASP A 12 REMARK 465 GLN B 169 REMARK 465 ILE B 170 REMARK 465 GLU B 171 REMARK 465 ASN B 172 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 B 75 CD CE NZ REMARK 480 LYS B 78 CD CE NZ REMARK 480 LYS B 100 CD CE NZ REMARK 480 LYS B 157 CD CE NZ REMARK 480 LYS B 158 CD CE NZ REMARK 480 LYS B 164 CD CE NZ 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 HIS A 66 43.52 -150.71 REMARK 500 ASN B 26 1.94 -68.38 REMARK 500 HIS B 66 43.19 -156.77 REMARK 500 SER B 159 3.13 84.12 REMARK 500 CYS B 162 -7.04 -155.79 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 MG A 404 MG REMARK 620 N RES CSSEQI ATOM REMARK 620 1 GLU A 147 OE1 REMARK 620 2 HOH A 473 O 92.3 REMARK 620 3 HOH A 497 O 88.6 91.7 REMARK 620 4 HOH B 219 O 96.3 90.3 174.7 REMARK 620 5 HOH B 257 O 164.9 101.3 97.4 77.3 REMARK 620 6 HOH B 275 O 85.3 177.6 87.8 90.4 81.2 REMARK 620 N 1 2 3 4 5 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 401 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 402 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SO4 A 403 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE MG A 404 DBREF 1EXT A 12 172 UNP P19438 TNR1A_HUMAN 41 201 DBREF 1EXT B 12 172 UNP P19438 TNR1A_HUMAN 41 201 SEQRES 1 A 162 MET ASP SER VAL CYS PRO GLN GLY LYS TYR ILE HIS PRO SEQRES 2 A 162 GLN ASN ASN SER ILE CYS CYS THR LYS CYS HIS LYS GLY SEQRES 3 A 162 THR TYR LEU TYR ASN ASP CYS PRO GLY PRO GLY GLN ASP SEQRES 4 A 162 THR ASP CYS ARG GLU CYS GLU SER GLY SER PHE THR ALA SEQRES 5 A 162 SER GLU ASN HIS LEU ARG HIS CYS LEU SER CYS SER LYS SEQRES 6 A 162 CYS ARG LYS GLU MET GLY GLN VAL GLU ILE SER SER CYS SEQRES 7 A 162 THR VAL ASP ARG ASP THR VAL CYS GLY CYS ARG LYS ASN SEQRES 8 A 162 GLN TYR ARG HIS TYR TRP SER GLU ASN LEU PHE GLN CYS SEQRES 9 A 162 PHE ASN CYS SER LEU CYS LEU ASN GLY THR VAL HIS LEU SEQRES 10 A 162 SER CYS GLN GLU LYS GLN ASN THR VAL CYS THR CYS HIS SEQRES 11 A 162 ALA GLY PHE PHE LEU ARG GLU ASN GLU CYS VAL SER CYS SEQRES 12 A 162 SER ASN CYS LYS LYS SER LEU GLU CYS THR LYS LEU CYS SEQRES 13 A 162 LEU PRO GLN ILE GLU ASN SEQRES 1 B 162 MET ASP SER VAL CYS PRO GLN GLY LYS TYR ILE HIS PRO SEQRES 2 B 162 GLN ASN ASN SER ILE CYS CYS THR LYS CYS HIS LYS GLY SEQRES 3 B 162 THR TYR LEU TYR ASN ASP CYS PRO GLY PRO GLY GLN ASP SEQRES 4 B 162 THR ASP CYS ARG GLU CYS GLU SER GLY SER PHE THR ALA SEQRES 5 B 162 SER GLU ASN HIS LEU ARG HIS CYS LEU SER CYS SER LYS SEQRES 6 B 162 CYS ARG LYS GLU MET GLY GLN VAL GLU ILE SER SER CYS SEQRES 7 B 162 THR VAL ASP ARG ASP THR VAL CYS GLY CYS ARG LYS ASN SEQRES 8 B 162 GLN TYR ARG HIS TYR TRP SER GLU ASN LEU PHE GLN CYS SEQRES 9 B 162 PHE ASN CYS SER LEU CYS LEU ASN GLY THR VAL HIS LEU SEQRES 10 B 162 SER CYS GLN GLU LYS GLN ASN THR VAL CYS THR CYS HIS SEQRES 11 B 162 ALA GLY PHE PHE LEU ARG GLU ASN GLU CYS VAL SER CYS SEQRES 12 B 162 SER ASN CYS LYS LYS SER LEU GLU CYS THR LYS LEU CYS SEQRES 13 B 162 LEU PRO GLN ILE GLU ASN HET SO4 A 401 5 HET SO4 A 402 5 HET SO4 A 403 5 HET MG A 404 1 HETNAM SO4 SULFATE ION HETNAM MG MAGNESIUM ION FORMUL 3 SO4 3(O4 S 2-) FORMUL 6 MG MG 2+ FORMUL 7 HOH *400(H2 O) HELIX 1 1 LYS A 78 MET A 80 5 3 HELIX 2 2 CYS A 153 ASN A 155 5 3 HELIX 3 3 THR A 163 CYS A 166 1 4 HELIX 4 4 LYS B 78 MET B 80 5 3 HELIX 5 5 CYS B 153 ASN B 155 5 3 SHEET 1 A 2 LYS A 19 ILE A 21 0 SHEET 2 A 2 CYS A 29 THR A 31 -1 N CYS A 30 O TYR A 20 SHEET 1 B 2 PHE A 143 ARG A 146 0 SHEET 2 B 2 GLU A 149 SER A 152 -1 N VAL A 151 O PHE A 144 SHEET 1 C 2 LYS B 19 ILE B 21 0 SHEET 2 C 2 CYS B 29 THR B 31 -1 N CYS B 30 O TYR B 20 SHEET 1 D 2 PHE B 143 ARG B 146 0 SHEET 2 D 2 GLU B 149 SER B 152 -1 N VAL B 151 O PHE B 144 SHEET 1 E 2 THR A 37 ASN A 41 0 SHEET 2 E 2 ASP A 51 GLU A 54 -1 N ARG A 53 O TYR A 38 SHEET 1 F 2 VAL A 83 SER A 86 0 SHEET 2 F 2 VAL A 95 GLY A 97 -1 N GLY A 97 O VAL A 83 SHEET 1 G 2 GLN A 102 SER A 108 0 SHEET 2 G 2 LEU A 111 ASN A 116 -1 N PHE A 115 O TYR A 103 SHEET 1 H 2 GLY A 123 LEU A 127 0 SHEET 2 H 2 VAL A 136 CYS A 139 -1 N THR A 138 O THR A 124 SHEET 1 I 2 THR B 37 ASN B 41 0 SHEET 2 I 2 ASP B 51 GLU B 54 -1 N ARG B 53 O TYR B 38 SHEET 1 J 2 VAL B 83 SER B 86 0 SHEET 2 J 2 VAL B 95 GLY B 97 -1 N GLY B 97 O VAL B 83 SHEET 1 K 2 GLN B 102 SER B 108 0 SHEET 2 K 2 LEU B 111 ASN B 116 -1 N PHE B 115 O TYR B 103 SHEET 1 L 2 GLY B 123 LEU B 127 0 SHEET 2 L 2 VAL B 136 CYS B 139 -1 N THR B 138 O THR B 124 SSBOND 1 CYS A 15 CYS A 29 1555 1555 2.03 SSBOND 2 CYS A 30 CYS A 43 1555 1555 2.04 SSBOND 3 CYS A 33 CYS A 52 1555 1555 2.03 SSBOND 4 CYS A 55 CYS A 70 1555 1555 2.03 SSBOND 5 CYS A 73 CYS A 88 1555 1555 2.02 SSBOND 6 CYS A 76 CYS A 96 1555 1555 2.03 SSBOND 7 CYS A 98 CYS A 114 1555 1555 2.03 SSBOND 8 CYS A 117 CYS A 129 1555 1555 2.03 SSBOND 9 CYS A 120 CYS A 137 1555 1555 2.03 SSBOND 10 CYS A 139 CYS A 150 1555 1555 2.03 SSBOND 11 CYS A 153 CYS A 166 1555 1555 2.03 SSBOND 12 CYS A 156 CYS A 162 1555 1555 2.03 SSBOND 13 CYS B 15 CYS B 29 1555 1555 2.21 SSBOND 14 CYS B 30 CYS B 43 1555 1555 2.23 SSBOND 15 CYS B 33 CYS B 52 1555 1555 2.27 SSBOND 16 CYS B 55 CYS B 70 1555 1555 2.26 SSBOND 17 CYS B 73 CYS B 88 1555 1555 2.25 SSBOND 18 CYS B 76 CYS B 96 1555 1555 2.30 SSBOND 19 CYS B 98 CYS B 114 1555 1555 2.23 SSBOND 20 CYS B 117 CYS B 129 1555 1555 2.23 SSBOND 21 CYS B 120 CYS B 137 1555 1555 2.27 SSBOND 22 CYS B 139 CYS B 150 1555 1555 2.21 SSBOND 23 CYS B 153 CYS B 166 1555 1555 2.35 SSBOND 24 CYS B 156 CYS B 162 1555 1555 2.35 LINK OE1 GLU A 147 MG MG A 404 1555 1555 2.19 LINK MG MG A 404 O HOH A 473 1555 1555 2.61 LINK MG MG A 404 O HOH A 497 1555 1555 2.17 LINK MG MG A 404 O HOH B 219 1555 1555 2.33 LINK MG MG A 404 O HOH B 257 1555 1555 2.34 LINK MG MG A 404 O HOH B 275 1555 1555 2.39 SITE 1 AC1 4 PRO A 23 ARG A 68 ARG A 99 HOH A 421 SITE 1 AC2 5 ARG A 68 ARG A 99 LYS A 100 HOH A 480 SITE 2 AC2 5 HOH B 325 SITE 1 AC3 6 TYR A 103 GLN A 133 ASN A 134 HOH A 450 SITE 2 AC3 6 HOH A 466 HOH A 476 SITE 1 AC4 6 GLU A 147 HOH A 473 HOH A 497 HOH B 219 SITE 2 AC4 6 HOH B 257 HOH B 275 CRYST1 78.810 83.060 67.900 90.00 90.00 90.00 P 21 21 21 8 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 0.012689 0.000000 0.000000 0.00000 SCALE2 0.000000 0.012039 0.000000 0.00000 SCALE3 0.000000 0.000000 0.014728 0.00000