HEADER HYDROLASE INHIBITOR 16-SEP-04 1XG6 TITLE THE CRYSTAL STRUCTURE OF THE P1 MUTANT (LEU TO ARG)OF A WINGED BEAN TITLE 2 CHYMOTRYPSIN INHIBITOR(KUNITZ)SOLVED AT 2.15A RESOLUTION COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHYMOTRYPSIN INHIBITOR 3; COMPND 3 CHAIN: A; COMPND 4 SYNONYM: WINGED BEAN CHYMOTRYPSIN INHIBITOR, WCI-3; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: PSOPHOCARPUS TETRAGONOLOBUS; SOURCE 3 ORGANISM_COMMON: WINGED BEAN; SOURCE 4 ORGANISM_TAXID: 3891; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_VECTOR_TYPE: PLASMID; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PET28A+ KEYWDS TRYPSIN INHIBITOR, HYDROLASE INHIBITOR EXPDTA X-RAY DIFFRACTION AUTHOR U.SEN,J.K.DATTAGUPTA,J.DASGUPTA,S.KHAMRUI REVDAT 6 25-OCT-23 1XG6 1 REMARK REVDAT 5 10-NOV-21 1XG6 1 SEQADV REVDAT 4 11-OCT-17 1XG6 1 REMARK REVDAT 3 24-FEB-09 1XG6 1 VERSN REVDAT 2 24-JAN-06 1XG6 1 JRNL REVDAT 1 30-AUG-05 1XG6 0 JRNL AUTH S.KHAMRUI,J.DASGUPTA,J.K.DATTAGUPTA,U.SEN JRNL TITL SINGLE MUTATION AT P1 OF A CHYMOTRYPSIN INHIBITOR CHANGES IT JRNL TITL 2 TO A TRYPSIN INHIBITOR: X-RAY STRUCTURAL (2.15 A) AND JRNL TITL 3 BIOCHEMICAL BASIS JRNL REF BIOCHIM.BIOPHYS.ACTA V.1752 65 2005 JRNL REFN ISSN 0006-3002 JRNL PMID 16081330 JRNL DOI 10.1016/J.BBAPAP.2005.06.012 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH J.K.DATTAGUPTA,A.PODDER,C.CHAKRABARTI,U.SEN,D.MUKHOPADHYAY, REMARK 1 AUTH 2 S.K.DUTTA,M.SINGH REMARK 1 TITL REFINED CRYSTAL STRUCTURE (2.3 A) OF A DOUBLE-HEADED WINGED REMARK 1 TITL 2 BEAN ALPHA-CHYMOTRYPSIN INHIBITOR AND LOCATION OF ITS SECOND REMARK 1 TITL 3 REACTIVE SITE REMARK 1 REF PROTEINS V. 35 321 1999 REMARK 1 REFN ISSN 0887-3585 REMARK 1 PMID 10328267 REMARK 1 DOI 10.1002/(SICI)1097-0134(19990515)35:3<321::AID-PROT6>3.3.CO; REMARK 1 DOI 2 2-P REMARK 1 REFERENCE 2 REMARK 1 AUTH S.RAVICHANDRAN,J.DASGUPTA,C.CHAKRABARTI,S.GHOSH,M.SINGH, REMARK 1 AUTH 2 J.K.DATTAGUPTA REMARK 1 TITL THE ROLE OF ASN14 IN THE STABILITY AND CONFORMATION OF THE REMARK 1 TITL 2 REACTIVE-SITE LOOP OF WINGED BEAN CHYMOTRYPSIN INHIBITOR: REMARK 1 TITL 3 CRYSTAL STRUCTURES OF TWO POINT MUTANTS ASN14-->LYS AND REMARK 1 TITL 4 ASN14-->ASP REMARK 1 REF PROTEIN ENG. V. 14 349 2001 REMARK 1 REFN ISSN 0269-2139 REMARK 1 PMID 11438758 REMARK 1 DOI 10.1093/PROTEIN/14.5.349 REMARK 2 REMARK 2 RESOLUTION. 2.15 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : CNS 1.0 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) : 2.15 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 14.93 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : 1249123.490 REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 95.8 REMARK 3 NUMBER OF REFLECTIONS : 11202 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) : 0.199 REMARK 3 FREE R VALUE : 0.236 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 5.200 REMARK 3 FREE R VALUE TEST SET COUNT : 577 REMARK 3 ESTIMATED ERROR OF FREE R VALUE : 0.010 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) : 2.15 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.28 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 89.40 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 1625 REMARK 3 BIN R VALUE (WORKING SET) : 0.3570 REMARK 3 BIN FREE R VALUE : 0.3810 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 5.10 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 87 REMARK 3 ESTIMATED ERROR OF BIN FREE R VALUE : 0.041 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 1399 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 190 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 29.30 REMARK 3 MEAN B VALUE (OVERALL, A**2) : 45.90 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : 5.79000 REMARK 3 B22 (A**2) : 5.79000 REMARK 3 B33 (A**2) : -11.58000 REMARK 3 B12 (A**2) : 3.75000 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) : 0.27 REMARK 3 ESD FROM SIGMAA (A) : 0.35 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) : 0.34 REMARK 3 ESD FROM C-V SIGMAA (A) : 0.33 REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 BOND LENGTHS (A) : 0.006 REMARK 3 BOND ANGLES (DEGREES) : 1.700 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 25.70 REMARK 3 IMPROPER ANGLES (DEGREES) : 0.920 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) : 2.810 ; 1.500 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.830 ; 2.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 3.520 ; 2.000 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 5.910 ; 2.500 REMARK 3 REMARK 3 BULK SOLVENT MODELING. REMARK 3 METHOD USED : FLAT MODEL REMARK 3 KSOL : 0.32 REMARK 3 BSOL : 53.59 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 : WATER_REP.PARAM REMARK 3 PARAMETER FILE 3 : ION.PARAM REMARK 3 PARAMETER FILE 4 : NULL REMARK 3 TOPOLOGY FILE 1 : PROTEIN.TOP REMARK 3 TOPOLOGY FILE 2 : WATER_REP.TOP REMARK 3 TOPOLOGY FILE 3 : ION.TOP REMARK 3 TOPOLOGY FILE 4 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1XG6 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY PDBJ ON 22-SEP-04. REMARK 100 THE DEPOSITION ID IS D_1000030327. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-JUN-04 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : NULL 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 : COPPER REMARK 200 OPTICS : OSMIC MAXFLUX REMARK 200 REMARK 200 DETECTOR TYPE : IMAGE PLATE REMARK 200 DETECTOR MANUFACTURER : MARRESEARCH REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MAR REMARK 200 DATA SCALING SOFTWARE : SCALEPACK REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 11202 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.150 REMARK 200 RESOLUTION RANGE LOW (A) : 15.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : NULL REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : NULL REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : NULL REMARK 200 R SYM (I) : NULL REMARK 200 FOR THE DATA SET : NULL 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: MOLECULAR REPLACEMENT REMARK 200 SOFTWARE USED: AMORE REMARK 200 STARTING MODEL: 1EYL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 52.19 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.48 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 65 REMARK 290 REMARK 290 SYMOP SYMMETRY REMARK 290 NNNMMM OPERATOR REMARK 290 1555 X,Y,Z REMARK 290 2555 -Y,X-Y,Z+2/3 REMARK 290 3555 -X+Y,-X,Z+1/3 REMARK 290 4555 -X,-Y,Z+1/2 REMARK 290 5555 Y,-X+Y,Z+1/6 REMARK 290 6555 X-Y,X,Z+5/6 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 24.84067 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 12.42033 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 18.63050 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 6.21017 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 31.05083 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: 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 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 LYS A 179 REMARK 465 SER A 180 REMARK 465 GLU A 181 REMARK 465 THR A 182 REMARK 465 ALA A 183 REMARK 465 SER A 184 REMARK 465 SER A 185 REMARK 465 HIS A 186 REMARK 470 REMARK 470 MISSING ATOM REMARK 470 THE FOLLOWING RESIDUES HAVE MISSING ATOMS (M=MODEL NUMBER; REMARK 470 RES=RESIDUE NAME; C=CHAIN IDENTIFIER; SSEQ=SEQUENCE NUMBER; REMARK 470 I=INSERTION CODE): REMARK 470 M RES CSSEQI ATOMS REMARK 470 SER A 1 OG REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS IN SAME ASYMMETRIC UNIT REMARK 500 REMARK 500 THE FOLLOWING ATOMS ARE IN CLOSE CONTACT. REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI DISTANCE REMARK 500 O ASN A 129 N HIS A 131 2.07 REMARK 500 REMARK 500 REMARK: NULL 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 VAL A 145 N - CA - C ANGL. DEV. = 22.0 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 SER A 126 -17.77 -46.15 REMARK 500 SER A 128 144.54 -11.04 REMARK 500 ASN A 129 -138.05 72.77 REMARK 500 ILE A 130 -12.25 43.43 REMARK 500 GLU A 142 -61.07 161.53 REMARK 500 GLU A 143 -66.55 -109.38 REMARK 500 REMARK 500 REMARK: NULL DBREF 1XG6 A 4 186 UNP P10822 ICW3_PSOTE 25 207 SEQADV 1XG6 GLY A 0 UNP P10822 CLONING ARTIFACT SEQADV 1XG6 SER A 1 UNP P10822 CLONING ARTIFACT SEQADV 1XG6 HIS A 2 UNP P10822 CLONING ARTIFACT SEQADV 1XG6 MET A 3 UNP P10822 CLONING ARTIFACT SEQADV 1XG6 ARG A 68 UNP P10822 LEU 89 ENGINEERED MUTATION SEQRES 1 A 187 GLY SER HIS MET ASP ASP ASP LEU VAL ASP ALA GLU GLY SEQRES 2 A 187 ASN LEU VAL GLU ASN GLY GLY THR TYR TYR LEU LEU PRO SEQRES 3 A 187 HIS ILE TRP ALA HIS GLY GLY GLY ILE GLU THR ALA LYS SEQRES 4 A 187 THR GLY ASN GLU PRO CYS PRO LEU THR VAL VAL ARG SER SEQRES 5 A 187 PRO ASN GLU VAL SER LYS GLY GLU PRO ILE ARG ILE SER SEQRES 6 A 187 SER GLN PHE ARG SER LEU PHE ILE PRO ARG GLY SER LEU SEQRES 7 A 187 VAL ALA LEU GLY PHE ALA ASN PRO PRO SER CYS ALA ALA SEQRES 8 A 187 SER PRO TRP TRP THR VAL VAL ASP SER PRO GLN GLY PRO SEQRES 9 A 187 ALA VAL LYS LEU SER GLN GLN LYS LEU PRO GLU LYS ASP SEQRES 10 A 187 ILE LEU VAL PHE LYS PHE GLU LYS VAL SER HIS SER ASN SEQRES 11 A 187 ILE HIS VAL TYR LYS LEU LEU TYR CYS GLN HIS ASP GLU SEQRES 12 A 187 GLU ASP VAL LYS CYS ASP GLN TYR ILE GLY ILE HIS ARG SEQRES 13 A 187 ASP ARG ASN GLY ASN ARG ARG LEU VAL VAL THR GLU GLU SEQRES 14 A 187 ASN PRO LEU GLU LEU VAL LEU LEU LYS ALA LYS SER GLU SEQRES 15 A 187 THR ALA SER SER HIS FORMUL 2 HOH *190(H2 O) HELIX 1 1 ILE A 27 GLY A 31 5 5 HELIX 2 2 PRO A 113 ILE A 117 5 5 SHEET 1 A 4 VAL A 78 PHE A 82 0 SHEET 2 A 4 ILE A 61 SER A 65 -1 N ARG A 62 O GLY A 81 SHEET 3 A 4 THR A 20 PRO A 25 -1 N TYR A 21 O ILE A 61 SHEET 4 A 4 LEU A 173 LYS A 177 -1 O LEU A 176 N TYR A 22 SHEET 1 B 6 ILE A 34 ALA A 37 0 SHEET 2 B 6 THR A 47 ARG A 50 -1 O VAL A 49 N GLU A 35 SHEET 3 B 6 ARG A 161 VAL A 165 -1 O ARG A 161 N ARG A 50 SHEET 4 B 6 LYS A 146 ARG A 155 -1 N GLY A 152 O VAL A 164 SHEET 5 B 6 TYR A 133 GLN A 139 -1 N TYR A 137 O GLN A 149 SHEET 6 B 6 PHE A 120 LYS A 124 -1 N LYS A 121 O LEU A 136 SHEET 1 C 2 THR A 95 VAL A 97 0 SHEET 2 C 2 ALA A 104 LYS A 106 -1 O LYS A 106 N THR A 95 SSBOND 1 CYS A 44 CYS A 88 1555 1555 2.02 SSBOND 2 CYS A 138 CYS A 147 1555 1555 2.03 CRYST1 99.570 99.570 37.261 90.00 90.00 120.00 P 65 6 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 0.010043 0.005798 0.000000 0.00000 SCALE2 0.000000 0.011597 0.000000 0.00000 SCALE3 0.000000 0.000000 0.026838 0.00000