HEADER GLYCOSIDASE 25-JUN-96 1OBS TITLE STRUCTURE OF RICIN A CHAIN MUTANT COMPND MOL_ID: 1; COMPND 2 MOLECULE: RICIN A CHAIN; COMPND 3 CHAIN: A; COMPND 4 EC: 3.2.2.22; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: RICINUS COMMUNIS; SOURCE 3 ORGANISM_COMMON: CASTOR BEAN; SOURCE 4 ORGANISM_TAXID: 3988; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562; SOURCE 7 EXPRESSION_SYSTEM_STRAIN: JM101; SOURCE 8 EXPRESSION_SYSTEM_PLASMID: PUTA KEYWDS HYDROLASE, GLYCOSIDASE, TOXIN, DUPLICATION, GLYCOPROTEIN, LECTIN EXPDTA X-RAY DIFFRACTION AUTHOR P.J.DAY,S.R.ERNST,A.E.FRANKEL,A.F.MONZINGO,J.M.PASCAL,M.SVINTH, AUTHOR 2 J.D.ROBERTUS REVDAT 4 14-FEB-24 1OBS 1 REMARK REVDAT 3 03-NOV-21 1OBS 1 SEQADV REVDAT 2 24-FEB-09 1OBS 1 VERSN REVDAT 1 16-JUN-97 1OBS 0 JRNL AUTH P.J.DAY,S.R.ERNST,A.E.FRANKEL,A.F.MONZINGO,J.M.PASCAL, JRNL AUTH 2 M.C.MOLINA-SVINTH,J.D.ROBERTUS JRNL TITL STRUCTURE AND ACTIVITY OF AN ACTIVE SITE SUBSTITUTION OF JRNL TITL 2 RICIN A CHAIN. JRNL REF BIOCHEMISTRY V. 35 11098 1996 JRNL REFN ISSN 0006-2960 JRNL PMID 8780513 JRNL DOI 10.1021/BI960880N REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH S.A.WESTON,A.D.TUCKER,D.R.THATCHER,D.J.DERBYSHIRE, REMARK 1 AUTH 2 R.A.PAUPTIT REMARK 1 TITL X-RAY STRUCTURE OF RECOMBINANT RICIN A-CHAIN AT 1.8 A REMARK 1 TITL 2 RESOLUTION REMARK 1 REF J.MOL.BIOL. V. 244 410 1994 REMARK 1 REFN ISSN 0022-2836 REMARK 1 REFERENCE 2 REMARK 1 AUTH D.MLSNA,A.F.MONZINGO,B.J.KATZIN,S.ERNST,J.D.ROBERTUS REMARK 1 TITL STRUCTURE OF RECOMBINANT RICIN A CHAIN AT 2.3 A REMARK 1 REF PROTEIN SCI. V. 2 429 1993 REMARK 1 REFN ISSN 0961-8368 REMARK 2 REMARK 2 RESOLUTION. 2.20 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) : 2.20 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 10.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 2.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 99.8 REMARK 3 NUMBER OF REFLECTIONS : 17633 REMARK 3 REMARK 3 FIT TO DATA USED IN REFINEMENT. REMARK 3 CROSS-VALIDATION METHOD : NULL REMARK 3 FREE R VALUE TEST SET SELECTION : NULL REMARK 3 R VALUE (WORKING SET) : 0.214 REMARK 3 FREE R VALUE : NULL REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : NULL 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 : 2029 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 87 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 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) : 0.013 REMARK 3 BOND ANGLES (DEGREES) : 2.750 REMARK 3 DIHEDRAL ANGLES (DEGREES) : 24.82 REMARK 3 IMPROPER ANGLES (DEGREES) : 1.280 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: SET OF IDEAL BOND LENGTHS AND ANGLES REMARK 3 USED DURING REFINEMENT: RAMACHANDRAN ET AL. (1974), BIOCHIM. REMARK 3 BIOPHYS. ACTA 359, 298. FINAL RMS COORD. SHIFT 0.49 ANGSTROMS REMARK 4 REMARK 4 1OBS 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_1000175423. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 06-MAR-95 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : NULL REMARK 200 NUMBER OF CRYSTALS USED : NULL REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : N REMARK 200 RADIATION SOURCE : NULL REMARK 200 BEAMLINE : NULL REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : XUONG-HAMLIN MULTIWIRE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : SDMS REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 18873 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.100 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 90.9 REMARK 200 DATA REDUNDANCY : 20.00 REMARK 200 R MERGE (I) : 0.07600 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: NULL REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: NULL REMARK 200 SOFTWARE USED: X-PLOR 3.1 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 55.93 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.79 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: NULL REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: P 41 21 2 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+1/2,X+1/2,Z+1/4 REMARK 290 4555 Y+1/2,-X+1/2,Z+3/4 REMARK 290 5555 -X+1/2,Y+1/2,-Z+1/4 REMARK 290 6555 X+1/2,-Y+1/2,-Z+3/4 REMARK 290 7555 Y,X,-Z REMARK 290 8555 -Y,-X,-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 70.60000 REMARK 290 SMTRY1 3 0.000000 -1.000000 0.000000 34.40000 REMARK 290 SMTRY2 3 1.000000 0.000000 0.000000 34.40000 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 35.30000 REMARK 290 SMTRY1 4 0.000000 1.000000 0.000000 34.40000 REMARK 290 SMTRY2 4 -1.000000 0.000000 0.000000 34.40000 REMARK 290 SMTRY3 4 0.000000 0.000000 1.000000 105.90000 REMARK 290 SMTRY1 5 -1.000000 0.000000 0.000000 34.40000 REMARK 290 SMTRY2 5 0.000000 1.000000 0.000000 34.40000 REMARK 290 SMTRY3 5 0.000000 0.000000 -1.000000 35.30000 REMARK 290 SMTRY1 6 1.000000 0.000000 0.000000 34.40000 REMARK 290 SMTRY2 6 0.000000 -1.000000 0.000000 34.40000 REMARK 290 SMTRY3 6 0.000000 0.000000 -1.000000 105.90000 REMARK 290 SMTRY1 7 0.000000 1.000000 0.000000 0.00000 REMARK 290 SMTRY2 7 1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 7 0.000000 0.000000 -1.000000 0.00000 REMARK 290 SMTRY1 8 0.000000 -1.000000 0.000000 0.00000 REMARK 290 SMTRY2 8 -1.000000 0.000000 0.000000 0.00000 REMARK 290 SMTRY3 8 0.000000 0.000000 -1.000000 70.60000 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 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 350 BIOMT1 2 0.000000 1.000000 0.000000 68.80000 REMARK 350 BIOMT2 2 1.000000 0.000000 0.000000 -68.80000 REMARK 350 BIOMT3 2 0.000000 0.000000 -1.000000 141.20000 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 ILE A 1 REMARK 465 PHE A 2 REMARK 465 PRO A 3 REMARK 465 LYS A 4 REMARK 465 GLN A 5 REMARK 465 PRO A 263 REMARK 465 SER A 264 REMARK 465 SER A 265 REMARK 465 GLN A 266 REMARK 465 PHE A 267 REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: COVALENT BOND LENGTHS 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,2(A3,1X,A1,I4,A1,1X,A4,3X),1X,F6.3) 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 RES CSSEQI ATM2 DEVIATION REMARK 500 HIS A 65 NE2 HIS A 65 CD2 -0.066 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 ARG A 31 NE - CZ - NH2 ANGL. DEV. = -3.0 DEGREES REMARK 500 ARG A 85 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 ARG A 125 NE - CZ - NH1 ANGL. DEV. = 3.7 DEGREES REMARK 500 ARG A 189 NE - CZ - NH1 ANGL. DEV. = 3.1 DEGREES REMARK 500 ARG A 189 NE - CZ - NH2 ANGL. DEV. = -4.3 DEGREES REMARK 500 ARG A 191 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 ARG A 197 NE - CZ - NH1 ANGL. DEV. = 3.3 DEGREES REMARK 500 TRP A 211 CD1 - CG - CD2 ANGL. DEV. = 5.8 DEGREES REMARK 500 TRP A 211 CE2 - CD2 - CG ANGL. DEV. = -6.1 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 ASN A 78 -7.39 -143.51 REMARK 500 ILE A 175 -66.54 -108.95 REMARK 500 REMARK 500 REMARK: NULL DBREF 1OBS A 1 267 UNP P02879 RICI_RICCO 36 302 SEQADV 1OBS HIS A 180 UNP P02879 ARG 215 ENGINEERED MUTATION SEQRES 1 A 267 ILE PHE PRO LYS GLN TYR PRO ILE ILE ASN PHE THR THR SEQRES 2 A 267 ALA GLY ALA THR VAL GLN SER TYR THR ASN PHE ILE ARG SEQRES 3 A 267 ALA VAL ARG GLY ARG LEU THR THR GLY ALA ASP VAL ARG SEQRES 4 A 267 HIS GLU ILE PRO VAL LEU PRO ASN ARG VAL GLY LEU PRO SEQRES 5 A 267 ILE ASN GLN ARG PHE ILE LEU VAL GLU LEU SER ASN HIS SEQRES 6 A 267 ALA GLU LEU SER VAL THR LEU ALA LEU ASP VAL THR ASN SEQRES 7 A 267 ALA TYR VAL VAL GLY TYR ARG ALA GLY ASN SER ALA TYR SEQRES 8 A 267 PHE PHE HIS PRO ASP ASN GLN GLU ASP ALA GLU ALA ILE SEQRES 9 A 267 THR HIS LEU PHE THR ASP VAL GLN ASN ARG TYR THR PHE SEQRES 10 A 267 ALA PHE GLY GLY ASN TYR ASP ARG LEU GLU GLN LEU ALA SEQRES 11 A 267 GLY ASN LEU ARG GLU ASN ILE GLU LEU GLY ASN GLY PRO SEQRES 12 A 267 LEU GLU GLU ALA ILE SER ALA LEU TYR TYR TYR SER THR SEQRES 13 A 267 GLY GLY THR GLN LEU PRO THR LEU ALA ARG SER PHE ILE SEQRES 14 A 267 ILE CYS ILE GLN MET ILE SER GLU ALA ALA HIS PHE GLN SEQRES 15 A 267 TYR ILE GLU GLY GLU MET ARG THR ARG ILE ARG TYR ASN SEQRES 16 A 267 ARG ARG SER ALA PRO ASP PRO SER VAL ILE THR LEU GLU SEQRES 17 A 267 ASN SER TRP GLY ARG LEU SER THR ALA ILE GLN GLU SER SEQRES 18 A 267 ASN GLN GLY ALA PHE ALA SER PRO ILE GLN LEU GLN ARG SEQRES 19 A 267 ARG ASN GLY SER LYS PHE SER VAL TYR ASP VAL SER ILE SEQRES 20 A 267 LEU ILE PRO ILE ILE ALA LEU MET VAL TYR ARG CYS ALA SEQRES 21 A 267 PRO PRO PRO SER SER GLN PHE FORMUL 2 HOH *87(H2 O) HELIX 1 A VAL A 18 LEU A 32 1 15 HELIX 2 B GLU A 99 ILE A 104 1 6 HELIX 3 C ASN A 122 GLU A 127 1 6 HELIX 4 D ASN A 141 TYR A 152 1 12 HELIX 5 E LEU A 161 HIS A 180 1 20 HELIX 6 F ILE A 184 ILE A 192 1 9 HELIX 7 G PRO A 202 SER A 210 1 9 HELIX 8 H TRP A 211 GLN A 219 1 9 SHEET 1 1 6 PRO A 7 THR A 13 0 SHEET 2 1 6 ARG A 56 ASN A 64 1 N LEU A 59 O PRO A 7 SHEET 3 1 6 LEU A 68 VAL A 76 -1 O LEU A 68 N ASN A 64 SHEET 4 1 6 ALA A 79 ALA A 86 -1 O GLY A 83 N ALA A 73 SHEET 5 1 6 ASN A 88 PHE A 93 -1 N SER A 89 O ALA A 86 SHEET 6 1 6 ASN A 113 PHE A 117 1 N TYR A 115 O ALA A 90 SHEET 1 2 2 ILE A 230 ARG A 234 0 SHEET 2 2 2 GLY A 237 VAL A 242 -1 O VAL A 242 N ILE A 230 CRYST1 68.800 68.800 141.200 90.00 90.00 90.00 P 41 21 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 0.014535 0.000000 0.000000 0.00000 SCALE2 0.000000 0.014535 0.000000 0.00000 SCALE3 0.000000 0.000000 0.007082 0.00000