1CI1 - Header Asymmetric Unit

HEADER TRIOSEPHOSPHATE ISOMERASE 06-APR-99 1CI1

TITLE CRYSTAL STRUCTURE OF TRIOSEPHOSPHATE ISOMERASE FROM TRYPANOSOMA CRUZI TITLE 2 IN HEXANE

COMPND MOL_ID: 1; COMPND 2 MOLECULE: PROTEIN (TRIOSEPHOSPHATE ISOMERASE); COMPND 3 CHAIN: A, B; COMPND 4 SYNONYM: TIM; COMPND 5 EC: 5.3.1.1; COMPND 6 ENGINEERED: YES

SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: TRYPANOSOMA CRUZI; SOURCE 3 ORGANISM_TAXID: 5693; SOURCE 4 STRAIN: MEXICAN NINOA STRAIN; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: BL23(DE3); SOURCE 8 EXPRESSION_SYSTEM_CELLULAR_LOCATION: CYTOPLASM; SOURCE 9 EXPRESSION_SYSTEM_PLASMID: PET23A

KEYWDS TRIOSEPHOSPHATE ISOMERASE, TRYPANOSOMA CRUZI, ORGANIC SOLVENT, KEYWDS 2 HEXANE, OLIGOMERIC PROTEIN

EXPDTA X-RAY DIFFRACTION

AUTHOR X.-G.GAO,E.MALDONDO,R.PEREZ-MONTFORT,M.T.DE GOMEZ-PUYOU,A.GOMEZ- AUTHOR 2 PUYOU,A.RODRIGUEZ-ROMERO

REVDAT 4 13-JUL-11 1CI1 1 VERSN REVDAT 3 24-FEB-09 1CI1 1 VERSN REVDAT 2 01-APR-03 1CI1 1 JRNL REVDAT 1 01-SEP-99 1CI1 0

JRNL AUTH X.G.GAO,E.MALDONADO,R.PEREZ-MONTFORT,G.GARZA-RAMOS, JRNL AUTH 2 M.T.DE GOMEZ-PUYOU,A.GOMEZ-PUYOU,A.RODRIGUEZ-ROMERO JRNL TITL CRYSTAL STRUCTURE OF TRIOSEPHOSPHATE ISOMERASE FROM JRNL TITL 2 TRYPANOSOMA CRUZI IN HEXANE. JRNL REF PROC.NATL.ACAD.SCI.USA V. 96 10062 1999 JRNL REFN ISSN 0027-8424 JRNL PMID 10468562 JRNL DOI 10.1073/PNAS.96.18.10062

REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH E.MALDONADO,M.SORIANO-GARCIA,A.MORENO,N.CABRERA, REMARK 1 AUTH 2 G.GARZA-RAMOS,M.T.DE GOMEZ-PUYOU,A.GOMEZ-PUYOU, REMARK 1 AUTH 3 R.PEREZ-MONTFORT REMARK 1 TITL DIFFERENCES IN THE INTERSUBUNIT CONTACTS IN TRIOSEPHOSPHATE REMARK 1 TITL 2 ISOMERASE FROM TWO CLOSELY RELATED PATHOGENIC TRYPANOSOMES REMARK 1 REF J.MOL.BIOL. V. 283 193 1998 REMARK 1 REFN ISSN 0022-2836 REMARK 1 DOI 10.1006/JMBI.1998.2094

REMARK 2 REMARK 2 RESOLUTION. 2.00 ANGSTROMS.

REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR 3.851 (ONLINE) REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 5.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 10000000.000 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0010 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 82.4 REMARK 3 NUMBER OF REFLECTIONS : 26956 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) : 0.181 REMARK 3 FREE R VALUE : 0.239 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 10.000 REMARK 3 FREE R VALUE TEST SET COUNT : 2696 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) : 2.00 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.12 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 65.90 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 3197 REMARK 3 BIN R VALUE (WORKING SET) : 0.3090 REMARK 3 BIN FREE R VALUE : 0.3580 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 9.90 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 350 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.019 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 3818 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 18 REMARK 3 SOLVENT ATOMS : 236 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 18.10 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 25.60 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 0.00000 REMARK 3 B22 (A**2) : 0.00000 REMARK 3 B33 (A**2) : 0.00000 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 0.00000 REMARK 3 B23 (A**2) : 0.00000 REMARK 3 REMARK 3 ESTIMATED COORDINATE ERROR. REMARK 3 ESD FROM LUZZATI PLOT (A) : 0.21 REMARK 3 ESD FROM SIGMAA (A) : 0.32 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) : 0.27 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.35 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.20 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.00 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.64 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) : 1.560 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 2.210 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.000 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.580 ; 2.500 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 : PROTEIN_REP.PARAM REMARK 3 PARAMETER FILE 2 : PARAM.HEX REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOP.HEX REMARK 3 TOPOLOGY FILE 3 : TOPH19.SOL REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL

REMARK 4 REMARK 4 1CI1 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11

REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 12-APR-99. REMARK 100 THE RCSB ID CODE IS RCSB000798.

REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 21-APR-98 REMARK 200 TEMPERATURE (KELVIN) : 291 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : ROTATING ANODE REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : RIGAKU RU200 REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : MIRRORS REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : RIGAKU RAXIS IIC REMARK 200 INTENSITY-INTEGRATION SOFTWARE : DENZO REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 31766 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.950 REMARK 200 RESOLUTION RANGE LOW (A) : 25.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 2.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 84.4 REMARK 200 DATA REDUNDANCY : 3.600 REMARK 200 R MERGE (I) : 0.11600 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 4.6400 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 2.00 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.11 REMARK 200 COMPLETENESS FOR SHELL (%) : 65.5 REMARK 200 DATA REDUNDANCY IN SHELL : 3.40 REMARK 200 R MERGE FOR SHELL (I) : 0.11300 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 2.100 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: OTHER REMARK 200 SOFTWARE USED: NULL REMARK 200 STARTING MODEL: PDB ENTRY 1TCD REMARK 200 REMARK 200 REMARK: NULL

REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 47.00 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.32 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN WAS CRYSTALLIZED AT ROOM REMARK 280 TEMPERATUTE BY VAPER DIFFUSION FROM 0.1 M NA HEPES PH7.5, 2%(V/V) REMARK 280 PEG400 AND 2.0 M AMMONIUM SULFATE, THEN SOAKED IN ANHYDROUS N- REMARK 280 HEXANE. , VAPOR DIFFUSION

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 21.82800 REMARK 290 SMTRY2 2 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY3 2 0.000000 0.000000 1.000000 74.60550 REMARK 290 SMTRY1 3 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 38.82500 REMARK 290 SMTRY3 3 0.000000 0.000000 -1.000000 74.60550 REMARK 290 SMTRY1 4 1.000000 0.000000 0.000000 21.82800 REMARK 290 SMTRY2 4 0.000000 -1.000000 0.000000 38.82500 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,PQS REMARK 350 TOTAL BURIED SURFACE AREA: 3730 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 19380 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -11.0 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 1 REMARK 465 ALA A 2 REMARK 465 SER A 3 REMARK 465 MET B 1 REMARK 465 ALA B 2

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 LYS A 14 -147.16 51.49 REMARK 500 LYS A 177 73.05 -103.03 REMARK 500 PRO A 241 -8.11 -55.41 REMARK 500 LYS B 14 -149.80 50.91 REMARK 500 REMARK 500 REMARK: NULL

REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: CS REMARK 800 EVIDENCE_CODE: AUTHOR REMARK 800 SITE_DESCRIPTION: CATALYTIC SITE REMARK 800 REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEX B 261 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEX B 262 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE HEX B 263

REMARK 999 REMARK 999 SEQUENCE REMARK 999 THE FIRST 3 N-TERMINAL RESIDUE WERE NOT REMARK 999 BUILT INTO THE MODEL A AS THEY WERE NOT REMARK 999 SEEEN IN THE DENSITY MAPS REMARK 999 THE FIRST 2 N-TERMINAL RESIDUE WERE NOT REMARK 999 BUILT INTO THE MODEL B AS THEY WERE NOT REMARK 999 SEEN IN THE DENSITY MAPS

DBREF 1CI1 A 1 251 UNP P52270 TPIS_TRYCR 1 251 DBREF 1CI1 B 1 251 UNP P52270 TPIS_TRYCR 1 251

SEQRES 1 A 251 MET ALA SER LYS PRO GLN PRO ILE ALA ALA ALA ASN TRP SEQRES 2 A 251 LYS CYS ASN GLY SER GLU SER LEU LEU VAL PRO LEU ILE SEQRES 3 A 251 GLU THR LEU ASN ALA ALA THR PHE ASP HIS ASP VAL GLN SEQRES 4 A 251 CYS VAL VAL ALA PRO THR PHE LEU HIS ILE PRO MET THR SEQRES 5 A 251 LYS ALA ARG LEU THR ASN PRO LYS PHE GLN ILE ALA ALA SEQRES 6 A 251 GLN ASN ALA ILE THR ARG SER GLY ALA PHE THR GLY GLU SEQRES 7 A 251 VAL SER LEU GLN ILE LEU LYS ASP TYR GLY ILE SER TRP SEQRES 8 A 251 VAL VAL LEU GLY HIS SER GLU ARG ARG LEU TYR TYR GLY SEQRES 9 A 251 GLU THR ASN GLU ILE VAL ALA GLU LYS VAL ALA GLN ALA SEQRES 10 A 251 CYS ALA ALA GLY PHE HIS VAL ILE VAL CYS VAL GLY GLU SEQRES 11 A 251 THR ASN GLU GLU ARG GLU ALA GLY ARG THR ALA ALA VAL SEQRES 12 A 251 VAL LEU THR GLN LEU ALA ALA VAL ALA GLN LYS LEU SER SEQRES 13 A 251 LYS GLU ALA TRP SER ARG VAL VAL ILE ALA TYR GLU PRO SEQRES 14 A 251 VAL TRP ALA ILE GLY THR GLY LYS VAL ALA THR PRO GLN SEQRES 15 A 251 GLN ALA GLN GLU VAL HIS GLU LEU LEU ARG ARG TRP VAL SEQRES 16 A 251 ARG SER LYS LEU GLY THR ASP ILE ALA ALA GLN LEU ARG SEQRES 17 A 251 ILE LEU TYR GLY GLY SER VAL THR ALA LYS ASN ALA ARG SEQRES 18 A 251 THR LEU TYR GLN MET ARG ASP ILE ASN GLY PHE LEU VAL SEQRES 19 A 251 GLY GLY ALA SER LEU LYS PRO GLU PHE VAL GLU ILE ILE SEQRES 20 A 251 GLU ALA THR LYS SEQRES 1 B 251 MET ALA SER LYS PRO GLN PRO ILE ALA ALA ALA ASN TRP SEQRES 2 B 251 LYS CYS ASN GLY SER GLU SER LEU LEU VAL PRO LEU ILE SEQRES 3 B 251 GLU THR LEU ASN ALA ALA THR PHE ASP HIS ASP VAL GLN SEQRES 4 B 251 CYS VAL VAL ALA PRO THR PHE LEU HIS ILE PRO MET THR SEQRES 5 B 251 LYS ALA ARG LEU THR ASN PRO LYS PHE GLN ILE ALA ALA SEQRES 6 B 251 GLN ASN ALA ILE THR ARG SER GLY ALA PHE THR GLY GLU SEQRES 7 B 251 VAL SER LEU GLN ILE LEU LYS ASP TYR GLY ILE SER TRP SEQRES 8 B 251 VAL VAL LEU GLY HIS SER GLU ARG ARG LEU TYR TYR GLY SEQRES 9 B 251 GLU THR ASN GLU ILE VAL ALA GLU LYS VAL ALA GLN ALA SEQRES 10 B 251 CYS ALA ALA GLY PHE HIS VAL ILE VAL CYS VAL GLY GLU SEQRES 11 B 251 THR ASN GLU GLU ARG GLU ALA GLY ARG THR ALA ALA VAL SEQRES 12 B 251 VAL LEU THR GLN LEU ALA ALA VAL ALA GLN LYS LEU SER SEQRES 13 B 251 LYS GLU ALA TRP SER ARG VAL VAL ILE ALA TYR GLU PRO SEQRES 14 B 251 VAL TRP ALA ILE GLY THR GLY LYS VAL ALA THR PRO GLN SEQRES 15 B 251 GLN ALA GLN GLU VAL HIS GLU LEU LEU ARG ARG TRP VAL SEQRES 16 B 251 ARG SER LYS LEU GLY THR ASP ILE ALA ALA GLN LEU ARG SEQRES 17 B 251 ILE LEU TYR GLY GLY SER VAL THR ALA LYS ASN ALA ARG SEQRES 18 B 251 THR LEU TYR GLN MET ARG ASP ILE ASN GLY PHE LEU VAL SEQRES 19 B 251 GLY GLY ALA SER LEU LYS PRO GLU PHE VAL GLU ILE ILE SEQRES 20 B 251 GLU ALA THR LYS

HET HEX B 261 6 HET HEX B 262 6 HET HEX B 263 6

HETNAM HEX HEXANE

FORMUL 3 HEX 3(C6 H14) FORMUL 6 HOH *236(H2 O)

HELIX 1 1 GLU A 19 ALA A 31 1 13 HELIX 2 2 PHE A 46 ARG A 55 1 10 HELIX 3 3 LEU A 81 ASP A 86 1 6 HELIX 4 4 SER A 97 TYR A 102 1 6 HELIX 5 5 ASN A 107 ALA A 120 1 14 HELIX 6 6 ASN A 132 GLU A 136 1 5 HELIX 7 7 THR A 140 LYS A 154 1 15 HELIX 8 8 LYS A 157 ARG A 162 5 6 HELIX 9 9 VAL A 170 ALA A 172 5 3 HELIX 10 10 PRO A 181 LEU A 199 1 19 HELIX 11 11 THR A 201 GLN A 206 1 6 HELIX 12 12 ALA A 220 GLN A 225 1 6 HELIX 13 13 GLY A 236 LEU A 239 5 4 HELIX 14 14 PRO A 241 GLU A 248 5 8 HELIX 15 15 GLU B 19 ALA B 31 1 13 HELIX 16 16 PHE B 46 ARG B 55 1 10 HELIX 17 17 LEU B 81 ASP B 86 1 6 HELIX 18 18 SER B 97 TYR B 102 1 6 HELIX 19 19 ASN B 107 ALA B 119 1 13 HELIX 20 20 ASN B 132 GLU B 136 1 5 HELIX 21 21 THR B 140 LYS B 154 1 15 HELIX 22 22 LYS B 157 ARG B 162 5 6 HELIX 23 23 VAL B 170 THR B 175 1 6 HELIX 24 24 PRO B 181 LYS B 198 1 18 HELIX 25 25 THR B 201 GLN B 206 1 6 HELIX 26 26 ALA B 220 TYR B 224 1 5 HELIX 27 27 GLY B 236 LEU B 239 5 4 HELIX 28 28 PRO B 241 GLU B 248 5 8

SHEET 1 A 4 GLY A 231 VAL A 234 0 SHEET 2 A 4 PRO A 7 ASN A 12 1 N ILE A 8 O PHE A 232 SHEET 3 A 4 VAL A 38 ALA A 43 1 N GLN A 39 O PRO A 7 SHEET 4 A 4 PHE A 61 ALA A 64 1 N GLN A 62 O CYS A 40 SHEET 1 B 4 TRP A 91 LEU A 94 0 SHEET 2 B 4 HIS A 123 VAL A 128 1 N HIS A 123 O VAL A 92 SHEET 3 B 4 VAL A 163 GLU A 168 1 N VAL A 164 O VAL A 124 SHEET 4 B 4 ARG A 208 GLY A 212 1 N ARG A 208 O ILE A 165 SHEET 1 C 4 GLY B 231 VAL B 234 0 SHEET 2 C 4 PRO B 7 ASN B 12 1 N ILE B 8 O PHE B 232 SHEET 3 C 4 VAL B 38 ALA B 43 1 N GLN B 39 O PRO B 7 SHEET 4 C 4 PHE B 61 ILE B 63 1 N GLN B 62 O CYS B 40 SHEET 1 D 4 TRP B 91 LEU B 94 0 SHEET 2 D 4 HIS B 123 VAL B 128 1 N HIS B 123 O VAL B 92 SHEET 3 D 4 VAL B 163 TYR B 167 1 N VAL B 164 O VAL B 124 SHEET 4 D 4 ARG B 208 TYR B 211 1 N ARG B 208 O ILE B 165

SITE 1 CS 8 ASN A 12 LYS A 14 HIS A 96 GLU A 168 SITE 2 CS 8 ASN B 12 LYS B 14 HIS B 96 GLU B 168 SITE 1 AC1 3 ARG B 135 THR B 140 GLU B 186 SITE 1 AC2 8 ILE A 69 TYR A 103 GLY A 104 ILE A 109 SITE 2 AC2 8 LYS A 113 HOH A 289 TYR B 102 TYR B 103 SITE 1 AC3 3 PHE A 75 ARG A 139 TYR B 103

CRYST1 43.656 77.650 149.211 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 0.022906 0.000000 0.000000 0.00000

SCALE2 0.000000 0.012878 0.000000 0.00000

SCALE3 0.000000 0.000000 0.006702 0.00000