HEADER HYDROLASE 17-APR-06 2GP9 TITLE CRYSTAL STRUCTURE OF THE SLOW FORM OF THROMBIN IN A SELF-INHIBITED TITLE 2 CONFORMATION COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTHROMBIN; COMPND 3 CHAIN: A; COMPND 4 FRAGMENT: THROMBIN LIGHT CHAIN; COMPND 5 SYNONYM: COAGULATION FACTOR II; COMPND 6 EC: 3.4.21.5; COMPND 7 ENGINEERED: YES; COMPND 8 MOL_ID: 2; COMPND 9 MOLECULE: PROTHROMBIN; COMPND 10 CHAIN: B; COMPND 11 FRAGMENT: THROMBIN HEAVY CHAIN; COMPND 12 SYNONYM: COAGULATION FACTOR II; COMPND 13 EC: 3.4.21.5; COMPND 14 ENGINEERED: YES; COMPND 15 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 3 ORGANISM_COMMON: HUMAN; SOURCE 4 ORGANISM_TAXID: 9606; SOURCE 5 GENE: F2; SOURCE 6 EXPRESSION_SYSTEM: CRICETULUS GRISEUS; SOURCE 7 EXPRESSION_SYSTEM_COMMON: CHINESE HAMSTER; SOURCE 8 EXPRESSION_SYSTEM_TAXID: 10029; SOURCE 9 MOL_ID: 2; SOURCE 10 ORGANISM_SCIENTIFIC: HOMO SAPIENS; SOURCE 11 ORGANISM_COMMON: HUMAN; SOURCE 12 ORGANISM_TAXID: 9606; SOURCE 13 GENE: F2; SOURCE 14 EXPRESSION_SYSTEM: CRICETULUS GRISEUS; SOURCE 15 EXPRESSION_SYSTEM_COMMON: CHINESE HAMSTER; SOURCE 16 EXPRESSION_SYSTEM_TAXID: 10029 KEYWDS SERINE PROTEASE, HYDROLASE EXPDTA X-RAY DIFFRACTION AUTHOR A.PINEDA,Z.CHEN,F.S.MATHEWS,E.DI CERA REVDAT 4 20-OCT-21 2GP9 1 REMARK SEQADV REVDAT 3 24-FEB-09 2GP9 1 VERSN REVDAT 2 08-JUL-08 2GP9 1 JRNL REVDAT 1 12-SEP-06 2GP9 0 JRNL AUTH A.O.PINEDA,Z.W.CHEN,A.BAH,L.C.GARVEY,F.S.MATHEWS,E.DI CERA JRNL TITL CRYSTAL STRUCTURE OF THROMBIN IN A SELF-INHIBITED JRNL TITL 2 CONFORMATION. JRNL REF J.BIOL.CHEM. V. 281 32922 2006 JRNL REFN ISSN 0021-9258 JRNL PMID 16954215 JRNL DOI 10.1074/JBC.M605530200 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH A.O.PINEDA,C.J.CARRELL,L.A.BUSH,S.PRASAD,S.CACCIA,Z.CHEN, REMARK 1 AUTH 2 F.S.MATHEWS,E.DI CERA REMARK 1 TITL MOLECULAR DISSECTION OF NA+ BINDING TO THROMBIN. REMARK 1 REF J.BIOL.CHEM. V. 279 31842 2004 REMARK 1 REFN ISSN 0021-9258 REMARK 2 REMARK 2 RESOLUTION. 1.87 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.1 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) : 1.87 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.00 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) (%) : 97.2 REMARK 3 NUMBER OF REFLECTIONS : 31621 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) : 0.195 REMARK 3 FREE R VALUE : 0.218 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 6.900 REMARK 3 FREE R VALUE TEST SET COUNT : 2193 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.005 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) : 1.87 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 1.99 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : NULL REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 4343 REMARK 3 BIN R VALUE (WORKING SET) : 0.2778 REMARK 3 BIN FREE R VALUE : 0.2773 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 7.20 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 335 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 : 2253 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 15 REMARK 3 SOLVENT ATOMS : 150 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 35.90 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) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.20 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) : 0.25 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.19 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.500 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 23.80 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.870 REMARK 3 REMARK 3 ISOTROPIC THERMAL MODEL : ISOTROPIC 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 2GP9 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 25-APR-06. REMARK 100 THE DEPOSITION ID IS D_1000037390. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 11-AUG-05 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 8-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9795 REMARK 200 MONOCHROMATOR : APS BEAMLINE 8BM REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : ADSC QUANTUM 315 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 32293 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.870 REMARK 200 RESOLUTION RANGE LOW (A) : 30.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 99.2 REMARK 200 DATA REDUNDANCY : 7.200 REMARK 200 R MERGE (I) : 0.05200 REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 31.3000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.87 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.94 REMARK 200 COMPLETENESS FOR SHELL (%) : 92.8 REMARK 200 DATA REDUNDANCY IN SHELL : 4.60 REMARK 200 R MERGE FOR SHELL (I) : 0.34300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 FOR SHELL : 3.200 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: MOLREP REMARK 200 STARTING MODEL: PDB ENTRY 1SHH REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 58.52 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.97 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: 18% PEG 20000, 0.1M HEPES, PH 7.5, REMARK 280 VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 296K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 43 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -X,-Y,Z+1/2 REMARK 290 3555 -Y,X,Z+3/4 REMARK 290 4555 Y,-X,Z+1/4 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 59.96850 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 89.95275 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 29.98425 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 BIOLOGICAL ASSEMBLY IS HETERODIMER. 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: 2560 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 12980 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -7.0 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 THR A -2 REMARK 465 PHE A -1 REMARK 465 GLY A 0 REMARK 465 ARG A 15 REMARK 465 LYS B 144A REMARK 465 GLU B 144B REMARK 465 THR B 144C REMARK 465 TRP B 144D REMARK 465 THR B 144E REMARK 465 ALA B 144F REMARK 465 ASN B 144G REMARK 465 VAL B 144H REMARK 465 GLY B 144I REMARK 465 LYS B 144J REMARK 465 GLY B 246 REMARK 465 GLU B 247 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 ASN B 143 N - CA - C ANGL. DEV. = -27.1 DEGREES REMARK 500 CYS B 168 CA - CB - SG ANGL. DEV. = 7.6 DEGREES REMARK 500 CYS B 182 CA - CB - SG ANGL. DEV. = 9.7 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 GLU A 1C -42.98 -24.11 REMARK 500 PHE A 7 -87.21 -133.29 REMARK 500 ILE A 14K -110.18 -84.01 REMARK 500 ASP A 14L 143.30 -29.38 REMARK 500 TYR B 60A 85.43 -152.65 REMARK 500 ASN B 60G 72.17 -159.57 REMARK 500 GLU B 97A -84.22 -115.02 REMARK 500 ASN B 143 60.56 -176.68 REMARK 500 GLN B 151 -167.84 -117.00 REMARK 500 SER B 153 -64.02 -108.20 REMARK 500 GLU B 186B 91.57 70.27 REMARK 500 ARG B 187 33.97 -164.36 REMARK 500 SER B 214 -151.78 -92.78 REMARK 500 ASP B 222 64.87 33.48 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 EPE B 301 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 1SHH RELATED DB: PDB REMARK 900 MOLECULAR DISSECTION OF NA+ BINDING TO THROMBIN DBREF 2GP9 A -2 14M UNP P00734 THRB_HUMAN 328 363 DBREF 2GP9 B 16 245 UNP P00734 THRB_HUMAN 364 622 SEQADV 2GP9 ASN B 102 UNP P00734 ASP 462 ENGINEERED MUTATION SEQRES 1 A 36 THR PHE GLY SER GLY GLU ALA ASP CYS GLY LEU ARG PRO SEQRES 2 A 36 LEU PHE GLU LYS LYS SER LEU GLU ASP LYS THR GLU ARG SEQRES 3 A 36 GLU LEU LEU GLU SER TYR ILE ASP GLY ARG SEQRES 1 B 259 ILE VAL GLU GLY SER ASP ALA GLU ILE GLY MET SER PRO SEQRES 2 B 259 TRP GLN VAL MET LEU PHE ARG LYS SER PRO GLN GLU LEU SEQRES 3 B 259 LEU CYS GLY ALA SER LEU ILE SER ASP ARG TRP VAL LEU SEQRES 4 B 259 THR ALA ALA HIS CYS LEU LEU TYR PRO PRO TRP ASP LYS SEQRES 5 B 259 ASN PHE THR GLU ASN ASP LEU LEU VAL ARG ILE GLY LYS SEQRES 6 B 259 HIS SER ARG THR ARG TYR GLU ARG ASN ILE GLU LYS ILE SEQRES 7 B 259 SER MET LEU GLU LYS ILE TYR ILE HIS PRO ARG TYR ASN SEQRES 8 B 259 TRP ARG GLU ASN LEU ASP ARG ASN ILE ALA LEU MET LYS SEQRES 9 B 259 LEU LYS LYS PRO VAL ALA PHE SER ASP TYR ILE HIS PRO SEQRES 10 B 259 VAL CYS LEU PRO ASP ARG GLU THR ALA ALA SER LEU LEU SEQRES 11 B 259 GLN ALA GLY TYR LYS GLY ARG VAL THR GLY TRP GLY ASN SEQRES 12 B 259 LEU LYS GLU THR TRP THR ALA ASN VAL GLY LYS GLY GLN SEQRES 13 B 259 PRO SER VAL LEU GLN VAL VAL ASN LEU PRO ILE VAL GLU SEQRES 14 B 259 ARG PRO VAL CYS LYS ASP SER THR ARG ILE ARG ILE THR SEQRES 15 B 259 ASP ASN MET PHE CYS ALA GLY TYR LYS PRO ASP GLU GLY SEQRES 16 B 259 LYS ARG GLY ASP ALA CYS GLU GLY ASP SER GLY GLY PRO SEQRES 17 B 259 PHE VAL MET LYS SER PRO PHE ASN ASN ARG TRP TYR GLN SEQRES 18 B 259 MET GLY ILE VAL SER TRP GLY GLU GLY CYS ASP ARG ASP SEQRES 19 B 259 GLY LYS TYR GLY PHE TYR THR HIS VAL PHE ARG LEU LYS SEQRES 20 B 259 LYS TRP ILE GLN LYS VAL ILE ASP GLN PHE GLY GLU HET EPE B 301 15 HETNAM EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID HETSYN EPE HEPES FORMUL 3 EPE C8 H18 N2 O4 S FORMUL 4 HOH *150(H2 O) HELIX 1 1 PHE A 7 SER A 11 5 5 HELIX 2 2 THR A 14B TYR A 14J 1 9 HELIX 3 3 ALA B 55 CYS B 58 5 4 HELIX 4 4 PRO B 60B ASP B 60E 5 4 HELIX 5 5 THR B 60I ASN B 62 5 3 HELIX 6 6 ASP B 125 LEU B 130 1 9 HELIX 7 7 GLU B 164 THR B 172 1 9 HELIX 8 8 CYS B 191 SER B 195 5 5 HELIX 9 9 LEU B 234 PHE B 245 1 12 SHEET 1 A 7 SER B 20 ASP B 21 0 SHEET 2 A 7 GLN B 156 PRO B 161 -1 O VAL B 157 N SER B 20 SHEET 3 A 7 LYS B 135 GLY B 140 -1 N GLY B 140 O GLN B 156 SHEET 4 A 7 PRO B 198 LYS B 202 -1 O VAL B 200 N ARG B 137 SHEET 5 A 7 TRP B 207 VAL B 213 -1 O TYR B 208 N MET B 201 SHEET 6 A 7 GLY B 226 HIS B 230 -1 O THR B 229 N ILE B 212 SHEET 7 A 7 MET B 180 ALA B 183 -1 N PHE B 181 O TYR B 228 SHEET 1 B 7 GLN B 30 ARG B 35 0 SHEET 2 B 7 GLU B 39 LEU B 46 -1 O LEU B 41 N LEU B 33 SHEET 3 B 7 TRP B 51 THR B 54 -1 O LEU B 53 N SER B 45 SHEET 4 B 7 ALA B 104 LEU B 108 -1 O MET B 106 N VAL B 52 SHEET 5 B 7 LYS B 81 ILE B 90 -1 N GLU B 86 O LYS B 107 SHEET 6 B 7 LEU B 64 ILE B 68 -1 N ILE B 68 O LYS B 81 SHEET 7 B 7 GLN B 30 ARG B 35 -1 N PHE B 34 O LEU B 65 SHEET 1 C 2 LEU B 60 TYR B 60A 0 SHEET 2 C 2 LYS B 60F ASN B 60G-1 O LYS B 60F N TYR B 60A SSBOND 1 CYS A 1 CYS B 122 1555 1555 2.04 SSBOND 2 CYS B 42 CYS B 58 1555 1555 2.04 SSBOND 3 CYS B 168 CYS B 182 1555 1555 2.03 SSBOND 4 CYS B 191 CYS B 220 1555 1555 2.04 CISPEP 1 SER B 36A PRO B 37 0 -0.25 SITE 1 AC1 11 PRO B 60C TRP B 60D ASP B 60E HIS B 91 SITE 2 AC1 11 ARG B 93 ARG B 101 ASN B 179 ARG B 233 SITE 3 AC1 11 LEU B 234 LYS B 236 LYS B 240 CRYST1 57.892 57.892 119.937 90.00 90.00 90.00 P 43 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 0.017274 0.000000 0.000000 0.00000 SCALE2 0.000000 0.017274 0.000000 0.00000 SCALE3 0.000000 0.000000 0.008338 0.00000