HEADER TOXIN 15-FEB-95 1CHP 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 5 20-NOV-24 1CHP 1 REMARK REVDAT 4 03-NOV-21 1CHP 1 REMARK SEQADV REVDAT 3 24-FEB-09 1CHP 1 VERSN REVDAT 2 01-APR-03 1CHP 1 JRNL REVDAT 1 08-MAR-96 1CHP 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. 2.00 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : X-PLOR REMARK 3 AUTHORS : BRUNGER REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 2.00 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) (%) : 83.3 REMARK 3 NUMBER OF REFLECTIONS : 28286 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) : 0.178 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 : 4090 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 1 REMARK 3 SOLVENT ATOMS : 248 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 21.50 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) : 0.011 REMARK 3 BOND ANGLES (DEGREES) : 1.660 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 1CHP 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_1000172334. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 14-JUL-94 REMARK 200 TEMPERATURE (KELVIN) : NULL REMARK 200 PH : 7.5 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 : 32710 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 (%) : 99.0 REMARK 200 DATA REDUNDANCY : 2.850 REMARK 200 R MERGE (I) : 0.08100 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 REMARK 200 STARTING MODEL: NULL REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 43.62 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.18 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PH 7.5 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 33.30500 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 33.30500 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: 12830 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20670 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -45.0 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 - 248 REMARK 400 CHLORIDE 249 - 249 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 LEU F 31 CA - CB - CG ANGL. DEV. = 17.0 DEGREES REMARK 500 LEU G 31 CA - CB - CG ANGL. DEV. = 14.1 DEGREES REMARK 500 LEU H 31 CA - CB - CG ANGL. DEV. = 14.4 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 LYS D 34 -0.12 69.51 REMARK 500 LYS E 34 16.90 58.98 REMARK 500 ARG E 35 34.63 -141.54 REMARK 500 GLN F 56 24.19 -69.76 REMARK 500 ILE F 58 -148.26 -69.42 REMARK 500 LYS G 34 -1.64 74.91 REMARK 500 ASN H 44 3.17 -68.51 REMARK 500 SER H 55 42.23 -81.01 REMARK 500 REMARK 500 REMARK: NULL 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. REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CL H 249 DBREF 1CHP D 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CHP E 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CHP F 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CHP G 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CHP H 1 103 UNP P01556 CHTB_VIBCH 22 124 SEQADV 1CHP HIS D 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CHP ASP D 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CHP THR D 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CHP HIS E 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CHP ASP E 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CHP THR E 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CHP HIS F 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CHP ASP F 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CHP THR F 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CHP HIS G 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CHP ASP G 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CHP THR G 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CHP HIS H 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CHP ASP H 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CHP THR H 47 UNP P01556 ILE 68 CONFLICT 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 ASP LYS ARG 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 ASP LYS ARG 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 ASP LYS ARG 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 ASP LYS ARG 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 ASP LYS ARG 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 HET CL H 249 1 HETNAM CL CHLORIDE ION FORMUL 6 CL CL 1- FORMUL 7 HOH *248(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 2.02 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 -0.14 CISPEP 2 THR E 92 PRO E 93 0 0.31 CISPEP 3 THR F 92 PRO F 93 0 -0.05 CISPEP 4 THR G 92 PRO G 93 0 -0.22 CISPEP 5 THR H 92 PRO H 93 0 -0.85 SITE 1 AC1 5 HIS D 13 TYR H 12 HIS H 13 TRP H 88 SITE 2 AC1 5 HOH H 255 CRYST1 102.600 66.610 99.710 90.00 131.57 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 0.008644 0.00000 SCALE2 0.000000 0.015013 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013405 0.00000