HEADER HYDROLASE/HYDROLASE INHIBITOR 21-FEB-16 5IAG TITLE CASPASE 3 V266Q COMPND MOL_ID: 1; COMPND 2 MOLECULE: CASPASE-3; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: CASP-3,APOPAIN,CYSTEINE PROTEASE CPP32,CPP-32,PROTEIN YAMA, COMPND 5 SREBP CLEAVAGE ACTIVITY 1,SCA-1; COMPND 6 EC: 3.4.22.56; COMPND 7 ENGINEERED: YES; COMPND 8 MUTATION: YES; COMPND 9 MOL_ID: 2; COMPND 10 MOLECULE: ACE-ASP-GLU-VAL-ASK; COMPND 11 CHAIN: B; COMPND 12 MOL_ID: 3; COMPND 13 MOLECULE: ASP-ASP-ASP-MET; COMPND 14 CHAIN: D; COMPND 15 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: CASP3, CPP32; SOURCE 6 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 7 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 8 MOL_ID: 2; SOURCE 9 ORGANISM_SCIENTIFIC: UNIDENTIFIED; SOURCE 10 ORGANISM_TAXID: 32644; SOURCE 11 MOL_ID: 3; SOURCE 12 ORGANISM_SCIENTIFIC: UNIDENTIFIED; SOURCE 13 ORGANISM_TAXID: 32644; SOURCE 14 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 15 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ALLOSTERY, SATURATION MUTAGENESIS, CONFORMATIONAL SELECTION, NATIVE KEYWDS 2 ENSEMBLE, PROTEIN SOLVATION, PROTEIN STRUCTURE, PROTEIN DYNAMICS, KEYWDS 3 HYDROLASE-HYDROLASE INHIBITOR COMPLEX EXPDTA X-RAY DIFFRACTION AUTHOR J.J.MACIAG,S.H.MACKENZIE,M.B.TUCKER,J.L.SCHIPPER,P.D.SWARTZ,A.C.CLARK REVDAT 1 26-OCT-16 5IAG 0 JRNL AUTH J.J.MACIAG,S.H.MACKENZIE,M.B.TUCKER,J.L.SCHIPPER,P.SWARTZ, JRNL AUTH 2 A.C.CLARK JRNL TITL TUNABLE ALLOSTERIC LIBRARY OF CASPASE-3 IDENTIFIES COUPLING JRNL TITL 2 BETWEEN CONSERVED WATER MOLECULES AND CONFORMATIONAL JRNL TITL 3 SELECTION. JRNL REF PROC.NATL.ACAD.SCI.USA V. 113 E6080 2016 JRNL REFN ESSN 1091-6490 JRNL PMID 27681633 JRNL DOI 10.1073/PNAS.1603549113 REMARK 2 REMARK 2 RESOLUTION. 1.98 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : PHENIX 1.9_1692 REMARK 3 AUTHORS : PAUL ADAMS,PAVEL AFONINE,VINCENT CHEN,IAN REMARK 3 : DAVIS,KRESHNA GOPAL,RALF GROSSE-KUNSTLEVE, REMARK 3 : LI-WEI HUNG,ROBERT IMMORMINO,TOM IOERGER, REMARK 3 : AIRLIE MCCOY,ERIK MCKEE,NIGEL MORIARTY, REMARK 3 : REETAL PAI,RANDY READ,JANE RICHARDSON, REMARK 3 : DAVID RICHARDSON,TOD ROMO,JIM SACCHETTINI, REMARK 3 : NICHOLAS SAUTER,JACOB SMITH,LAURENT REMARK 3 : STORONI,TOM TERWILLIGER,PETER ZWART REMARK 3 REMARK 3 REFINEMENT TARGET : NULL REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.98 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 30.03 REMARK 3 MIN(FOBS/SIGMA_FOBS) : 1.340 REMARK 3 COMPLETENESS FOR RANGE (%) : 81.6 REMARK 3 NUMBER OF REFLECTIONS : 16493 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 R VALUE (WORKING + TEST SET) : 0.164 REMARK 3 R VALUE (WORKING SET) : 0.159 REMARK 3 FREE R VALUE : 0.216 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 1650 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT (IN BINS). REMARK 3 BIN RESOLUTION RANGE COMPL. NWORK NFREE RWORK RFREE REMARK 3 1 30.0306 - 4.5205 0.99 1607 180 0.1492 0.1895 REMARK 3 2 4.5205 - 3.5899 0.64 777 85 0.1244 0.1903 REMARK 3 3 3.5899 - 3.1367 0.82 945 105 0.1591 0.1867 REMARK 3 4 3.1367 - 2.8502 1.00 1518 169 0.1617 0.2059 REMARK 3 5 2.8502 - 2.6460 1.00 1512 168 0.1583 0.2302 REMARK 3 6 2.6460 - 2.4901 1.00 1500 166 0.1575 0.2104 REMARK 3 7 2.4901 - 2.3654 1.00 1504 168 0.1559 0.2235 REMARK 3 8 2.3654 - 2.2625 0.85 815 90 0.1851 0.3018 REMARK 3 9 2.2625 - 2.1754 0.70 306 35 0.2805 0.2831 REMARK 3 10 2.1754 - 2.1004 0.98 1463 162 0.1826 0.2271 REMARK 3 11 2.1004 - 2.0347 0.99 1464 163 0.1883 0.3138 REMARK 3 12 2.0347 - 1.9766 0.96 1432 159 0.1971 0.3010 REMARK 3 REMARK 3 BULK SOLVENT MODELLING. REMARK 3 METHOD USED : NULL REMARK 3 SOLVENT RADIUS : 1.11 REMARK 3 SHRINKAGE RADIUS : 0.90 REMARK 3 K_SOL : NULL REMARK 3 B_SOL : NULL REMARK 3 REMARK 3 ERROR ESTIMATES. REMARK 3 COORDINATE ERROR (MAXIMUM-LIKELIHOOD BASED) : 0.200 REMARK 3 PHASE ERROR (DEGREES, MAXIMUM-LIKELIHOOD BASED) : 21.970 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 TWINNING INFORMATION. REMARK 3 FRACTION: NULL REMARK 3 OPERATOR: NULL REMARK 3 REMARK 3 DEVIATIONS FROM IDEAL VALUES. REMARK 3 RMSD COUNT REMARK 3 BOND : 0.007 2053 REMARK 3 ANGLE : 0.978 2758 REMARK 3 CHIRALITY : 0.042 296 REMARK 3 PLANARITY : 0.004 354 REMARK 3 DIHEDRAL : 12.214 775 REMARK 3 REMARK 3 TLS DETAILS REMARK 3 NUMBER OF TLS GROUPS : NULL REMARK 3 REMARK 3 NCS DETAILS REMARK 3 NUMBER OF NCS GROUPS : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: AUTHORS STATE THAT THERE IS A REMARK 3 FUNDAMENTAL INCOMPATIBILITY IN THE NAMING OF THE INHIBITOR REMARK 3 STRUCTURE AND THE REFINEMENT PROGRAM CANNOT BE MADE TO ESTABLISH REMARK 3 A BOND THAT EXISTS BETWEEN THE INHIBITOR AND THE PROTEIN AT THE REMARK 3 ACTIVE SITE CYSTEINE. REMARK 4 REMARK 4 5IAG COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 27-SEP-16. REMARK 100 THE DEPOSITION ID IS D_1000218535. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 02-MAR-11 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 8.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 22-ID REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.00 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : MARMOSAIC 300 MM CCD REMARK 200 INTENSITY-INTEGRATION SOFTWARE : HKL-2000 REMARK 200 DATA SCALING SOFTWARE : HKL-2000 REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 16493 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.977 REMARK 200 RESOLUTION RANGE LOW (A) : 30.027 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 81.6 REMARK 200 DATA REDUNDANCY : 6.700 REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : 1.3400 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: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: PHENIX REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.10 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.16 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: CASPASE-3 VARIANTS WERE CRYSTALLIZED REMARK 280 IN THE PRESENCE OF AC-DEVD-CMK. PROTEINS WERE DIALYZED IN A REMARK 280 BUFFER OF 10 MM TRIS-HCL, PH 8.5, 1 MM DTT. THE PROTEIN WAS REMARK 280 CONCENTRATED TO 10 MG/ML USING AMICON ULTRAFREE CENTRIFUGAL REMARK 280 FILTER DEVICES, AND INHIBITOR, AC-DEVD-CMK RECONSTITUTED IN DMSO, REMARK 280 WAS THEN ADDED AT 5:1 WT:WT, INHIBITOR TO PEPTIDE. THE PROTEIN REMARK 280 WAS DILUTED TO A CONCENTRATION OF 8 MG/ML BY ADDING 10 MM TRIS- REMARK 280 HCL, PH 8.5, CONCENTRATED DTT AND CONCENTRATED NAN3 SO THAT THE REMARK 280 FINAL BUFFER WAS 10 MM TRIS-HCL, PH 8.5, 10 MM DTT, 3 MM NAN3. 2 REMARK 280 UL OF CONCENTRATED PROTEIN WAS MIXED 1:1 WITH WELL BUFFER THAT REMARK 280 CONTAINED 100 MM SODIUM CITRATE, PH 5, 3 MM NAN3, 10 MM DTT AND REMARK 280 17% PEG 6000 W/V. SOLUTIONS WERE INCUBATED AT 18 DEG C USING THE REMARK 280 HANGING DROP METHOD. CRYSTALS GREW WITHIN THREE DAYS FOR WILD- REMARK 280 TYPE CASPASE-3 AND WITHIN TWO WEEKS FOR THE MUTANTS., VAPOR REMARK 280 DIFFUSION, HANGING DROP, TEMPERATURE 291K REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: I 2 2 2 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,Y,-Z REMARK 290 4555 X,-Y,-Z REMARK 290 5555 X+1/2,Y+1/2,Z+1/2 REMARK 290 6555 -X+1/2,-Y+1/2,Z+1/2 REMARK 290 7555 -X+1/2,Y+1/2,-Z+1/2 REMARK 290 8555 X+1/2,-Y+1/2,-Z+1/2 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 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 0.00000 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 0.00000 REMARK 290 SMTRY1 5 1.000000 0.000000 0.000000 34.52000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 42.55200 REMARK 290 SMTRY3 5 0.000000 0.000000 1.000000 48.13650 REMARK 290 SMTRY1 6 -1.000000 0.000000 0.000000 34.52000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 42.55200 REMARK 290 SMTRY3 6 0.000000 0.000000 1.000000 48.13650 REMARK 290 SMTRY1 7 -1.000000 0.000000 0.000000 34.52000 REMARK 290 SMTRY2 7 0.000000 1.000000 0.000000 42.55200 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 48.13650 REMARK 290 SMTRY1 8 1.000000 0.000000 0.000000 34.52000 REMARK 290 SMTRY2 8 0.000000 -1.000000 0.000000 42.55200 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 48.13650 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: TRIMERIC REMARK 350 APPLY THE FOLLOWING TO CHAINS: A, B, D 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 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 454 LIES ON A SPECIAL POSITION. REMARK 400 REMARK 400 COMPOUND REMARK 400 REMARK 400 THE AC-ASP-GLU-VAL-ASP-CMK IS PEPTIDE-LIKE, A MEMBER OF INHIBITOR REMARK 400 CLASS. REMARK 400 REMARK 400 GROUP: 1 REMARK 400 NAME: AC-ASP-GLU-VAL-ASP-CMK REMARK 400 CHAIN: B REMARK 400 COMPONENT_1: PEPTIDE LIKE POLYMER REMARK 400 DESCRIPTION: NULL 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 GLU A 2 REMARK 465 ASN A 3 REMARK 465 THR A 4 REMARK 465 GLU A 5 REMARK 465 ASN A 6 REMARK 465 SER A 7 REMARK 465 VAL A 8 REMARK 465 ASP A 9 REMARK 465 SER A 10 REMARK 465 LYS A 11 REMARK 465 SER A 12 REMARK 465 ILE A 13 REMARK 465 LYS A 14 REMARK 465 ASN A 15 REMARK 465 LEU A 16 REMARK 465 GLU A 17 REMARK 465 PRO A 18 REMARK 465 LYS A 19 REMARK 465 ILE A 20 REMARK 465 ILE A 21 REMARK 465 HIS A 22 REMARK 465 GLY A 23 REMARK 465 SER A 24 REMARK 465 GLU A 25 REMARK 465 SER A 26 REMARK 465 MET A 27 REMARK 465 ASP A 28 REMARK 465 ASP A 175 REMARK 465 SER A 176 REMARK 465 GLY A 177 REMARK 465 VAL A 178 REMARK 465 ASP A 179 REMARK 465 ASP A 180 REMARK 465 ASP A 181 REMARK 465 MET A 182 REMARK 465 ALA A 183 REMARK 465 CYS A 184 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 57 CD REMARK 480 GLU A 98 CD REMARK 480 GLU A 173 CD REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: binding site for Ac-Asp-Glu-Val-Asp-CMK chain B DBREF 5IAG A 1 277 UNP P42574 CASP3_HUMAN 1 277 DBREF 5IAG B 989 994 PDB 5IAG 5IAG 989 994 DBREF 5IAG D -1 2 PDB 5IAG 5IAG -1 2 SEQADV 5IAG GLN A 266 UNP P42574 VAL 266 ENGINEERED MUTATION SEQRES 1 A 277 MET GLU ASN THR GLU ASN SER VAL ASP SER LYS SER ILE SEQRES 2 A 277 LYS ASN LEU GLU PRO LYS ILE ILE HIS GLY SER GLU SER SEQRES 3 A 277 MET ASP SER GLY ILE SER LEU ASP ASN SER TYR LYS MET SEQRES 4 A 277 ASP TYR PRO GLU MET GLY LEU CYS ILE ILE ILE ASN ASN SEQRES 5 A 277 LYS ASN PHE HIS LYS SER THR GLY MET THR SER ARG SER SEQRES 6 A 277 GLY THR ASP VAL ASP ALA ALA ASN LEU ARG GLU THR PHE SEQRES 7 A 277 ARG ASN LEU LYS TYR GLU VAL ARG ASN LYS ASN ASP LEU SEQRES 8 A 277 THR ARG GLU GLU ILE VAL GLU LEU MET ARG ASP VAL SER SEQRES 9 A 277 LYS GLU ASP HIS SER LYS ARG SER SER PHE VAL CYS VAL SEQRES 10 A 277 LEU LEU SER HIS GLY GLU GLU GLY ILE ILE PHE GLY THR SEQRES 11 A 277 ASN GLY PRO VAL ASP LEU LYS LYS ILE THR ASN PHE PHE SEQRES 12 A 277 ARG GLY ASP ARG CYS ARG SER LEU THR GLY LYS PRO LYS SEQRES 13 A 277 LEU PHE ILE ILE GLN ALA CYS ARG GLY THR GLU LEU ASP SEQRES 14 A 277 CYS GLY ILE GLU THR ASP SER GLY VAL ASP ASP ASP MET SEQRES 15 A 277 ALA CYS HIS LYS ILE PRO VAL GLU ALA ASP PHE LEU TYR SEQRES 16 A 277 ALA TYR SER THR ALA PRO GLY TYR TYR SER TRP ARG ASN SEQRES 17 A 277 SER LYS ASP GLY SER TRP PHE ILE GLN SER LEU CYS ALA SEQRES 18 A 277 MET LEU LYS GLN TYR ALA ASP LYS LEU GLU PHE MET HIS SEQRES 19 A 277 ILE LEU THR ARG VAL ASN ARG LYS VAL ALA THR GLU PHE SEQRES 20 A 277 GLU SER PHE SER PHE ASP ALA THR PHE HIS ALA LYS LYS SEQRES 21 A 277 GLN ILE PRO CYS ILE GLN SER MET LEU THR LYS GLU LEU SEQRES 22 A 277 TYR PHE TYR HIS SEQRES 1 B 6 ACE ASP GLU VAL ASP 0QE SEQRES 1 D 4 ASP ASP ASP MET HET ACE B 989 3 HET 0QE B 994 1 HETNAM ACE ACETYL GROUP HETNAM 0QE CHLOROMETHANE HETSYN 0QE CHLORO METHYL GROUP FORMUL 2 ACE C2 H4 O FORMUL 2 0QE C H3 CL FORMUL 4 HOH *164(H2 O) HELIX 1 AA1 HIS A 56 GLY A 60 5 5 HELIX 2 AA2 GLY A 66 LEU A 81 1 16 HELIX 3 AA3 THR A 92 LYS A 105 1 14 HELIX 4 AA4 LEU A 136 PHE A 142 1 7 HELIX 5 AA5 CYS A 148 THR A 152 5 5 HELIX 6 AA6 TRP A 214 ALA A 227 1 14 HELIX 7 AA7 GLU A 231 PHE A 247 1 17 HELIX 8 AA8 ASP A 253 HIS A 257 5 5 SHEET 1 AA1 6 GLU A 84 ASN A 89 0 SHEET 2 AA1 6 GLU A 43 ASN A 51 1 N ASN A 51 O LYS A 88 SHEET 3 AA1 6 ARG A 111 LEU A 119 1 O VAL A 117 N ILE A 48 SHEET 4 AA1 6 LYS A 156 GLN A 161 1 O LEU A 157 N PHE A 114 SHEET 5 AA1 6 PHE A 193 TYR A 197 1 O LEU A 194 N PHE A 158 SHEET 6 AA1 6 CYS A 264 SER A 267 -1 O GLN A 266 N TYR A 195 SHEET 1 AA2 3 GLY A 122 GLU A 123 0 SHEET 2 AA2 3 ILE A 126 GLY A 129 -1 O ILE A 126 N GLU A 123 SHEET 3 AA2 3 GLY A 132 ASP A 135 -1 O GLY A 132 N GLY A 129 SHEET 1 AA3 3 GLY A 212 SER A 213 0 SHEET 2 AA3 3 TRP A 206 ASN A 208 -1 N ASN A 208 O GLY A 212 SHEET 3 AA3 3 GLU B 991 VAL B 992 -1 O GLU B 991 N ARG A 207 LINK C ACE B 989 N ASP B 990 1555 1555 1.34 LINK C ASP B 993 C1 0QE B 994 1555 1555 1.50 SITE 1 AC1 19 SER A 58 ARG A 64 SER A 120 HIS A 121 SITE 2 AC1 19 GLY A 122 GLN A 161 CYS A 163 TYR A 204 SITE 3 AC1 19 SER A 205 TRP A 206 ARG A 207 ASN A 208 SITE 4 AC1 19 SER A 209 TRP A 214 SER A 249 PHE A 250 SITE 5 AC1 19 HOH A 369 HOH B1001 HOH B1002 CRYST1 69.040 85.104 96.273 90.00 90.00 90.00 I 2 2 2 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 0.014484 0.000000 0.000000 0.00000 SCALE2 0.000000 0.011750 0.000000 0.00000 SCALE3 0.000000 0.000000 0.010387 0.00000