HEADER TOXIN 15-FEB-95 1CHQ TITLE SURPRISING LEADS FOR A CHOLERA TOXIN RECEPTOR BINDING ANTAGONIST; TITLE 2 CRYSTALLOGRAPHIC STUDIES OF CTB MUTANTS COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHOLERA TOXIN B PENTAMER; COMPND 3 CHAIN: D, E, F, G, H; COMPND 4 SYNONYM: CHOLERAGEN; COMPND 5 ENGINEERED: YES; COMPND 6 MUTATION: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: VIBRIO CHOLERAE; SOURCE 3 ORGANISM_TAXID: 666; SOURCE 4 STRAIN: OGAWA 41 (CLASSICAL); SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR E.A.MERRITT,W.G.J.HOL REVDAT 7 13-NOV-24 1CHQ 1 REMARK REVDAT 6 03-NOV-21 1CHQ 1 SEQADV REVDAT 5 21-JUN-17 1CHQ 1 REMARK REVDAT 4 12-FEB-14 1CHQ 1 REMARK REVDAT 3 24-FEB-09 1CHQ 1 VERSN REVDAT 2 01-APR-03 1CHQ 1 JRNL REVDAT 1 08-MAR-96 1CHQ 0 JRNL AUTH E.A.MERRITT,S.SARFATY,T.T.CHANG,L.M.PALMER,M.G.JOBLING, JRNL AUTH 2 R.K.HOLMES,W.G.HOL JRNL TITL SURPRISING LEADS FOR A CHOLERA TOXIN RECEPTOR-BINDING JRNL TITL 2 ANTAGONIST: CRYSTALLOGRAPHIC STUDIES OF CTB MUTANTS. JRNL REF STRUCTURE V. 3 561 1995 JRNL REFN ISSN 0969-2126 JRNL PMID 8590017 JRNL DOI 10.1016/S0969-2126(01)00190-3 REMARK 1 REMARK 1 REFERENCE 1 REMARK 1 AUTH E.A.MERRITT,S.SARFATY,F.VAN DEN AKKER,C.L'HOIR,J.A.MARTIAL, REMARK 1 AUTH 2 W.G.J.HOL REMARK 1 TITL 2.2 ANGSTROMS CRYSTAL STRUCTURE OF CHOLERA TOXIN B5 PENTAMER REMARK 1 TITL 2 BOUND TO RECEPTOR GM1 PENTASACCHARIDE REMARK 1 REF PROTEIN SCI. V. 3 166 1994 REMARK 1 REFN ISSN 0961-8368 REMARK 1 REFERENCE 2 REMARK 1 AUTH M.G.JOBLING,R.K.HOLMES REMARK 1 TITL ANALYSIS OF STRUCTURE AND FUNCTION OF THE B SUBUNIT OF REMARK 1 TITL 2 CHOLERA TOXIN BY THE USE OF SITE-DIRECTED MUTAGENESIS REMARK 1 REF MOL.MICROBIOL. V. 5 1755 1991 REMARK 1 REFN ISSN 0950-382X REMARK 2 REMARK 2 RESOLUTION. 2.10 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) : 2.10 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 12.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 3.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : NULL REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 75.5 REMARK 3 NUMBER OF REFLECTIONS : 22154 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) : 0.208 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 : 4010 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 0 REMARK 3 SOLVENT ATOMS : 105 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 41.70 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) : 0.014 REMARK 3 BOND ANGLES (DEGREES) : 1.810 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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: NULL REMARK 4 REMARK 4 1CHQ 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_1000172335. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 01-NOV-94 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : 6.4 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) : 1.54 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS X1000 REMARK 200 INTENSITY-INTEGRATION SOFTWARE : XENGEN REMARK 200 DATA SCALING SOFTWARE : NULL REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 28288 REMARK 200 RESOLUTION RANGE HIGH (A) : NULL REMARK 200 RESOLUTION RANGE LOW (A) : NULL REMARK 200 REJECTION CRITERIA (SIGMA(I)) : 0.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 96.0 REMARK 200 DATA REDUNDANCY : 2.020 REMARK 200 R MERGE (I) : 0.05300 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 (%): 44.19 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.20 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 6.4 REMARK 290 REMARK 290 CRYSTALLOGRAPHIC SYMMETRY REMARK 290 SYMMETRY OPERATORS FOR SPACE GROUP: C 1 2 1 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+1/2,Y+1/2,Z 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 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 51.30000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.69500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.30000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 33.69500 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 300 REMARK: CHOLERA TOXIN IS AN AB5 HEXAMER. THE B-PENTAMER OF REMARK 300 CHOLERA TOXIN IS RESPONSIBLE FOR RECEPTOR RECOGNITION AND REMARK 300 BINDING. 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: PENTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: PENTAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 11890 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20450 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -53.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, F, G, H 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 400 REMARK 400 COMPOUND REMARK 400 THE FIVE IDENTICAL B SUBUNITS ARE LABELLED AS CHAINS D, E, REMARK 400 F, G, AND H CORRESPONDING TO CHAIN IDENTIFIERS USED FOR REMARK 400 THE RELATED HEAT-LABILE ENTEROTOXIN (LT) FROM ESCHERICHIA REMARK 400 COLI AND FOR THE WILD TYPE CHOLERA TOXIN/RECEPTOR COMPLEX. REMARK 400 REMARK 400 SUBUNIT CHAIN RESIDUES REMARK 400 REMARK 400 B#1 D 1 - 103 REMARK 400 B#2 E 1 - 103 REMARK 400 B#3 F 1 - 103 REMARK 400 B#4 G 1 - 103 REMARK 400 B#5 H 1 - 103 REMARK 400 WATER 1 - 105 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 LYS D 34 CB CG CD CE NZ REMARK 470 ASP D 35 CB CG OD1 OD2 REMARK 470 LYS E 34 CB CG CD CE NZ REMARK 470 ASP E 35 CB CG OD1 OD2 REMARK 470 LYS F 34 CB CG CD CE NZ REMARK 470 ASP F 35 CB CG OD1 OD2 REMARK 470 LYS G 34 CB CG CD CE NZ REMARK 470 ASP G 35 CB CG OD1 OD2 REMARK 470 LYS H 34 CB CG CD CE NZ REMARK 470 ASP H 35 CB CG OD1 OD2 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 D 34 -38.65 71.80 REMARK 500 ASP D 35 41.23 -101.38 REMARK 500 GLU D 36 104.25 -54.37 REMARK 500 PRO D 53 85.02 -55.24 REMARK 500 ILE D 58 161.53 -46.90 REMARK 500 ASN D 90 23.78 -72.80 REMARK 500 ALA E 10 -7.75 -58.78 REMARK 500 LEU E 20 -56.52 -125.39 REMARK 500 LYS E 34 3.67 42.22 REMARK 500 GLU E 36 92.62 -57.11 REMARK 500 SER E 55 -72.97 1.29 REMARK 500 ILE E 58 -117.62 -90.21 REMARK 500 ASP E 59 -61.40 -108.50 REMARK 500 LYS F 34 -8.85 75.62 REMARK 500 GLU F 36 83.42 -69.81 REMARK 500 PRO F 53 71.65 -67.03 REMARK 500 GLN F 56 42.80 -81.01 REMARK 500 ILE F 58 -173.90 -64.04 REMARK 500 GLU F 83 -76.43 -79.34 REMARK 500 LYS G 34 -1.64 69.63 REMARK 500 PRO G 53 -166.21 -58.23 REMARK 500 GLU G 83 -72.64 -83.61 REMARK 500 ASN H 14 37.61 71.22 REMARK 500 GLN H 16 127.37 -170.48 REMARK 500 ALA H 32 80.77 -59.94 REMARK 500 LYS H 34 -12.86 71.50 REMARK 500 GLU H 36 89.76 -67.96 REMARK 500 SER H 55 35.22 -80.27 REMARK 500 GLU H 83 -72.81 -80.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: PLANAR GROUPS REMARK 500 REMARK 500 PLANAR GROUPS IN THE FOLLOWING RESIDUES HAVE A TOTAL REMARK 500 RMS DISTANCE OF ALL ATOMS FROM THE BEST-FIT PLANE REMARK 500 BY MORE THAN AN EXPECTED VALUE OF 6*RMSD, WITH AN REMARK 500 RMSD 0.02 ANGSTROMS, OR AT LEAST ONE ATOM HAS REMARK 500 AN RMSD GREATER THAN THIS VALUE REMARK 500 (M=MODEL NUMBER; RES=RESIDUE NAME; C=CHAIN IDENTIFIER; REMARK 500 SSEQ=SEQUENCE NUMBER; I=INSERTION CODE). REMARK 500 REMARK 500 M RES CSSEQI RMS TYPE REMARK 500 TYR E 76 0.07 SIDE CHAIN REMARK 500 TYR G 12 0.08 SIDE CHAIN REMARK 500 TYR G 76 0.07 SIDE CHAIN REMARK 500 TYR H 12 0.08 SIDE CHAIN REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 REMARK 600 SOLVENT SITE 60 IS ALMOST CERTAINLY A CHLORIDE ION, AS REMARK 600 ESTABLISHED FOR THE ISOMORPHOUS G33D MUTANT (PDB ENTRY REMARK 600 1CHP). REMARK 700 REMARK 700 SHEET REMARK 700 IN THE PENTAMER THE BETA SHEETS FROM ADJACENT MONOMERS REMARK 700 COMBINE TO FORM A CONTINUOUS SIX-STRANDED ANTI-PARALLEL REMARK 700 SHEET ACROSS EACH MONOMER-MONOMER INTERFACE. DBREF 1CHQ D 1 103 UNP P01556 CHTB_VIBCH 29 131 DBREF 1CHQ E 1 103 UNP P01556 CHTB_VIBCH 29 131 DBREF 1CHQ F 1 103 UNP P01556 CHTB_VIBCH 29 131 DBREF 1CHQ G 1 103 UNP P01556 CHTB_VIBCH 29 131 DBREF 1CHQ H 1 103 UNP P01556 CHTB_VIBCH 29 131 SEQADV 1CHQ ASP D 35 UNP P01556 ARG 63 ENGINEERED MUTATION SEQADV 1CHQ ASP E 35 UNP P01556 ARG 63 ENGINEERED MUTATION SEQADV 1CHQ ASP F 35 UNP P01556 ARG 63 ENGINEERED MUTATION SEQADV 1CHQ ASP G 35 UNP P01556 ARG 63 ENGINEERED MUTATION SEQADV 1CHQ ASP H 35 UNP P01556 ARG 63 ENGINEERED MUTATION SEQRES 1 D 103 THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS SEQRES 2 D 103 ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER SEQRES 3 D 103 TYR THR GLU SER LEU ALA GLY LYS ASP GLU MET ALA ILE SEQRES 4 D 103 ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL SEQRES 5 D 103 PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE SEQRES 6 D 103 GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR SEQRES 7 D 103 GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS SEQRES 8 D 103 THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN SEQRES 1 E 103 THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS SEQRES 2 E 103 ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER SEQRES 3 E 103 TYR THR GLU SER LEU ALA GLY LYS ASP GLU MET ALA ILE SEQRES 4 E 103 ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL SEQRES 5 E 103 PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE SEQRES 6 E 103 GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR SEQRES 7 E 103 GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS SEQRES 8 E 103 THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN SEQRES 1 F 103 THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS SEQRES 2 F 103 ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER SEQRES 3 F 103 TYR THR GLU SER LEU ALA GLY LYS ASP GLU MET ALA ILE SEQRES 4 F 103 ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL SEQRES 5 F 103 PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE SEQRES 6 F 103 GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR SEQRES 7 F 103 GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS SEQRES 8 F 103 THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN SEQRES 1 G 103 THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS SEQRES 2 G 103 ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER SEQRES 3 G 103 TYR THR GLU SER LEU ALA GLY LYS ASP GLU MET ALA ILE SEQRES 4 G 103 ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL SEQRES 5 G 103 PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE SEQRES 6 G 103 GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR SEQRES 7 G 103 GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS SEQRES 8 G 103 THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN SEQRES 1 H 103 THR PRO GLN ASN ILE THR ASP LEU CYS ALA GLU TYR HIS SEQRES 2 H 103 ASN THR GLN ILE HIS THR LEU ASN ASP LYS ILE PHE SER SEQRES 3 H 103 TYR THR GLU SER LEU ALA GLY LYS ASP GLU MET ALA ILE SEQRES 4 H 103 ILE THR PHE LYS ASN GLY ALA THR PHE GLN VAL GLU VAL SEQRES 5 H 103 PRO GLY SER GLN HIS ILE ASP SER GLN LYS LYS ALA ILE SEQRES 6 H 103 GLU ARG MET LYS ASP THR LEU ARG ILE ALA TYR LEU THR SEQRES 7 H 103 GLU ALA LYS VAL GLU LYS LEU CYS VAL TRP ASN ASN LYS SEQRES 8 H 103 THR PRO HIS ALA ILE ALA ALA ILE SER MET ALA ASN FORMUL 6 HOH *105(H2 O) HELIX 1 DA1 ILE D 5 CYS D 9 1 5 HELIX 2 DA2 ASP D 59 THR D 78 1 20 HELIX 3 EA1 ILE E 5 CYS E 9 1 5 HELIX 4 EA2 LYS E 62 THR E 78 1 17 HELIX 5 FA1 ILE F 5 CYS F 9 1 5 HELIX 6 FA2 ASP F 59 THR F 78 1 20 HELIX 7 GA1 ILE G 5 CYS G 9 1 5 HELIX 8 HA2 GLN G 61 THR G 78 1 18 HELIX 9 GA1 ILE H 5 CYS H 9 1 5 HELIX 10 HA2 SER H 60 THR H 78 1 19 SHEET 1 BB1 6 THR D 15 ASP D 22 0 SHEET 2 BB1 6 VAL D 82 TRP D 88 -1 SHEET 3 BB1 6 HIS D 94 ALA D 102 -1 SHEET 4 BB1 6 SER E 26 SER E 30 -1 SHEET 5 BB1 6 MET E 37 THR E 41 -1 SHEET 6 BB1 6 THR E 47 VAL E 50 -1 SHEET 1 BB2 6 THR E 15 ASP E 22 0 SHEET 2 BB2 6 VAL E 82 TRP E 88 -1 SHEET 3 BB2 6 HIS E 94 ALA E 102 -1 SHEET 4 BB2 6 SER F 26 SER F 30 -1 SHEET 5 BB2 6 MET F 37 THR F 41 -1 SHEET 6 BB2 6 THR F 47 VAL F 50 -1 SHEET 1 BB3 6 THR F 15 ASP F 22 0 SHEET 2 BB3 6 VAL F 82 TRP F 88 -1 SHEET 3 BB3 6 HIS F 94 ALA F 102 -1 SHEET 4 BB3 6 SER G 26 SER G 30 -1 SHEET 5 BB3 6 MET G 37 THR G 41 -1 SHEET 6 BB3 6 THR G 47 VAL G 50 -1 SHEET 1 BB4 6 THR G 15 ASP G 22 0 SHEET 2 BB4 6 VAL G 82 TRP G 88 -1 SHEET 3 BB4 6 HIS G 94 ALA G 102 -1 SHEET 4 BB4 6 SER H 26 SER H 30 -1 SHEET 5 BB4 6 MET H 37 THR H 41 -1 SHEET 6 BB4 6 THR H 47 VAL H 50 -1 SHEET 1 BB5 6 THR H 15 ASP H 22 0 SHEET 2 BB5 6 VAL H 82 TRP H 88 -1 SHEET 3 BB5 6 HIS H 94 ALA H 102 -1 SHEET 4 BB5 6 SER D 26 SER D 30 -1 SHEET 5 BB5 6 MET D 37 THR D 41 -1 SHEET 6 BB5 6 THR D 47 VAL D 50 -1 SSBOND 1 CYS D 9 CYS D 86 1555 1555 2.02 SSBOND 2 CYS E 9 CYS E 86 1555 1555 2.03 SSBOND 3 CYS F 9 CYS F 86 1555 1555 2.02 SSBOND 4 CYS G 9 CYS G 86 1555 1555 2.03 SSBOND 5 CYS H 9 CYS H 86 1555 1555 2.03 CISPEP 1 THR D 92 PRO D 93 0 -0.21 CISPEP 2 THR E 92 PRO E 93 0 -0.34 CISPEP 3 THR F 92 PRO F 93 0 0.03 CISPEP 4 THR G 92 PRO G 93 0 -0.34 CISPEP 5 THR H 92 PRO H 93 0 -0.97 CRYST1 102.600 67.390 98.810 90.00 131.63 90.00 C 1 2 1 20 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 0.009747 0.000000 0.008663 0.00000 SCALE2 0.000000 0.014839 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013540 0.00000