HEADER ENTEROTOXIN 03-JUN-97 1CT1 TITLE CHOLERA TOXIN B-PENTAMER MUTANT G33R BOUND TO RECEPTOR PENTASACCHARIDE COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHOLERA TOXIN; COMPND 3 CHAIN: D, E, F, G, H; COMPND 4 FRAGMENT: B-PENTAMER; 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 BIOTYPE); SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS ENTEROTOXIN, TOXIN-RECEPTOR COMPLEX, OLIGOSACCHARIDE EXPDTA X-RAY DIFFRACTION AUTHOR E.A.MERRITT,W.G.J.HOL REVDAT 7 16-OCT-24 1CT1 1 REMARK REVDAT 6 09-AUG-23 1CT1 1 REMARK REVDAT 5 03-NOV-21 1CT1 1 SEQADV HETSYN REVDAT 4 29-JUL-20 1CT1 1 COMPND REMARK SEQADV HETNAM REVDAT 4 2 1 LINK SITE ATOM REVDAT 3 04-AUG-09 1CT1 1 ATOM COMPND CONECT HET REVDAT 3 2 1 HETATM HETNAM LINK SITE REVDAT 2 24-FEB-09 1CT1 1 VERSN REVDAT 1 15-OCT-97 1CT1 0 JRNL AUTH E.A.MERRITT,S.SARFATY,M.G.JOBLING,T.CHANG,R.K.HOLMES, JRNL AUTH 2 T.R.HIRST,W.G.HOL JRNL TITL STRUCTURAL STUDIES OF RECEPTOR BINDING BY CHOLERA TOXIN JRNL TITL 2 MUTANTS. JRNL REF PROTEIN SCI. V. 6 1516 1997 JRNL REFN ISSN 0961-8368 JRNL PMID 9232653 REMARK 2 REMARK 2 RESOLUTION. 2.30 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) : 2.30 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 15.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 1.000 REMARK 3 DATA CUTOFF HIGH (ABS(F)) : NULL REMARK 3 DATA CUTOFF LOW (ABS(F)) : 0.0000 REMARK 3 COMPLETENESS (WORKING+TEST) (%) : 92.0 REMARK 3 NUMBER OF REFLECTIONS : 21343 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) : 0.182 REMARK 3 FREE R VALUE : 0.250 REMARK 3 FREE R VALUE TEST SET SIZE (%) : 7.000 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 : 15 REMARK 3 BIN RESOLUTION RANGE HIGH (A) : 2.30 REMARK 3 BIN RESOLUTION RANGE LOW (A) : 2.33 REMARK 3 BIN COMPLETENESS (WORKING+TEST) (%) : 55.00 REMARK 3 REFLECTIONS IN BIN (WORKING SET) : 272 REMARK 3 BIN R VALUE (WORKING SET) : 0.2277 REMARK 3 BIN FREE R VALUE : 0.2620 REMARK 3 BIN FREE R VALUE TEST SET SIZE (%) : 6.00 REMARK 3 BIN FREE R VALUE TEST SET COUNT : 21 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 : 4105 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 137 REMARK 3 SOLVENT ATOMS : 151 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : NULL REMARK 3 MEAN B VALUE (OVERALL, A**2) : 27.00 REMARK 3 OVERALL ANISOTROPIC B VALUE. REMARK 3 B11 (A**2) : -0.20300 REMARK 3 B22 (A**2) : -3.33020 REMARK 3 B33 (A**2) : 3.53320 REMARK 3 B12 (A**2) : 0.00000 REMARK 3 B13 (A**2) : 4.20290 REMARK 3 B23 (A**2) : 0.00000 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) : 1.570 REMARK 3 DIHEDRAL ANGLES (DEGREES) : NULL REMARK 3 IMPROPER ANGLES (DEGREES) : NULL 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) : 2.000 ; 2.300 REMARK 3 MAIN-CHAIN ANGLE (A**2) : 4.000 ; 4.000 REMARK 3 SIDE-CHAIN BOND (A**2) : 2.000 ; 2.300 REMARK 3 SIDE-CHAIN ANGLE (A**2) : 4.000 ; 4.000 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 : PARHCSDX.PRO REMARK 3 PARAMETER FILE 2 : PARAM1.CHO (MODIFIED) REMARK 3 PARAMETER FILE 3 : NULL REMARK 3 TOPOLOGY FILE 1 : TOPHCSDX.PRO REMARK 3 TOPOLOGY FILE 2 : TOPH1.CHO (MODIFIED) REMARK 3 TOPOLOGY FILE 3 : NULL REMARK 3 REMARK 3 OTHER REFINEMENT REMARKS: BABINET BULK SOLVENT MODEL KSOL = 0.8 REMARK 3 BSOL = 50.0 REMARK 4 REMARK 4 1CT1 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_1000172513. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : DEC-95 REMARK 200 TEMPERATURE (KELVIN) : 287 REMARK 200 PH : 7.2-7.5 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 RUH2R REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 1.5418 REMARK 200 MONOCHROMATOR : GRAPHITE(002) REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : AREA DETECTOR REMARK 200 DETECTOR MANUFACTURER : SIEMENS REMARK 200 INTENSITY-INTEGRATION SOFTWARE : MACRO, XENGEN REMARK 200 DATA SCALING SOFTWARE : MACRO REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 22182 REMARK 200 RESOLUTION RANGE HIGH (A) : 2.300 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 (%) : 95.0 REMARK 200 DATA REDUNDANCY : NULL REMARK 200 R MERGE (I) : 0.09800 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) : 2.30 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 2.38 REMARK 200 COMPLETENESS FOR SHELL (%) : 55.0 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: PDB ENTRY 1CHP REMARK 200 REMARK 200 REMARK: NULL REMARK 280 REMARK 280 CRYSTAL REMARK 280 SOLVENT CONTENT, VS (%): 45.69 REMARK 280 MATTHEWS COEFFICIENT, VM (ANGSTROMS**3/DA): 2.26 REMARK 280 REMARK 280 CRYSTALLIZATION CONDITIONS: PROTEIN, 20 MM TRIS, 1 MM GM1-OS, PH REMARK 280 7.5 200 MM MGCL2, 100 MM CACODYLATE, 19% PEG 1000, 0.2% AGAROSE, REMARK 280 PH 7.2 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 51.70000 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.80500 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.70000 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 33.80500 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: PENTAMERIC REMARK 350 SOFTWARE DETERMINED QUATERNARY STRUCTURE: PENTAMERIC REMARK 350 SOFTWARE USED: PISA REMARK 350 TOTAL BURIED SURFACE AREA: 16840 ANGSTROM**2 REMARK 350 SURFACE AREA OF THE COMPLEX: 20860 ANGSTROM**2 REMARK 350 CHANGE IN SOLVENT FREE ENERGY: -13.0 KCAL/MOL REMARK 350 APPLY THE FOLLOWING TO CHAINS: D, E, F, G, H, 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 400 REMARK 400 COMPOUND REMARK 400 EACH CHAIN CONTAINS AN INTRODUCED MUTATION GLY->ARG AT REMARK 400 RESIDUE 33 OF THE RECEPTOR BINDING SITE. 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 MET F 68 SD MET F 68 CE 0.398 REMARK 500 MET G 68 CG MET G 68 SD -0.319 REMARK 500 MET H 68 CG MET H 68 SD -0.169 REMARK 500 MET H 68 SD MET H 68 CE 0.409 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 LEU F 31 CA - CB - CG ANGL. DEV. = 17.4 DEGREES REMARK 500 MET F 68 CG - SD - CE ANGL. DEV. = -10.3 DEGREES REMARK 500 LEU G 31 CA - CB - CG ANGL. DEV. = 15.1 DEGREES REMARK 500 LEU H 31 CA - CB - CG ANGL. DEV. = 15.2 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 -2.04 75.38 REMARK 500 GLN E 16 139.23 -173.27 REMARK 500 LYS F 34 -1.42 78.52 REMARK 500 ARG G 35 30.31 -141.12 REMARK 500 GLN H 16 142.29 -173.64 REMARK 500 REMARK 500 REMARK: NULL DBREF 1CT1 D 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CT1 E 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CT1 F 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CT1 G 1 103 UNP P01556 CHTB_VIBCH 22 124 DBREF 1CT1 H 1 103 UNP P01556 CHTB_VIBCH 22 124 SEQADV 1CT1 HIS D 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CT1 ARG D 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CT1 THR D 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CT1 HIS E 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CT1 ARG E 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CT1 THR E 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CT1 HIS F 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CT1 ARG F 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CT1 THR F 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CT1 HIS G 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CT1 ARG G 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CT1 THR G 47 UNP P01556 ILE 68 CONFLICT SEQADV 1CT1 HIS H 18 UNP P01556 TYR 39 CONFLICT SEQADV 1CT1 ARG H 33 UNP P01556 GLY 54 ENGINEERED MUTATION SEQADV 1CT1 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 ARG 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 ARG 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 ARG 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 ARG 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 ARG 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 BGC A 1 12 HET GAL A 2 11 HET NGA A 3 14 HET GAL A 4 11 HET SIA A 5 20 HET BGC B 1 12 HET GAL B 2 11 HET NGA B 3 14 HET GAL B 4 11 HET SIA B 5 20 HET CL H 104 1 HETNAM BGC BETA-D-GLUCOPYRANOSE HETNAM GAL BETA-D-GALACTOPYRANOSE HETNAM NGA 2-ACETAMIDO-2-DEOXY-BETA-D-GALACTOPYRANOSE HETNAM SIA N-ACETYL-ALPHA-NEURAMINIC ACID HETNAM CL CHLORIDE ION HETSYN BGC BETA-D-GLUCOSE; D-GLUCOSE; GLUCOSE HETSYN GAL BETA-D-GALACTOSE; D-GALACTOSE; GALACTOSE HETSYN NGA N-ACETYL-BETA-D-GALACTOSAMINE; 2-ACETAMIDO-2-DEOXY- HETSYN 2 NGA BETA-D-GALACTOSE; 2-ACETAMIDO-2-DEOXY-D-GALACTOSE; 2- HETSYN 3 NGA ACETAMIDO-2-DEOXY-GALACTOSE; N-ACETYL-D-GALACTOSAMINE HETSYN SIA N-ACETYLNEURAMINIC ACID; SIALIC ACID; ALPHA-SIALIC HETSYN 2 SIA ACID; O-SIALIC ACID FORMUL 6 BGC 2(C6 H12 O6) FORMUL 6 GAL 4(C6 H12 O6) FORMUL 6 NGA 2(C8 H15 N O6) FORMUL 6 SIA 2(C11 H19 N O9) FORMUL 8 CL CL 1- FORMUL 9 HOH *151(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 GA2 GLN G 61 THR G 78 1 18 HELIX 9 HA1 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 2.03 SSBOND 2 CYS E 9 CYS E 86 1555 1555 2.03 SSBOND 3 CYS F 9 CYS F 86 1555 1555 2.03 SSBOND 4 CYS G 9 CYS G 86 1555 1555 2.04 SSBOND 5 CYS H 9 CYS H 86 1555 1555 2.01 LINK O4 BGC A 1 C1 GAL A 2 1555 1555 1.40 LINK O4 GAL A 2 C1 NGA A 3 1555 1555 1.43 LINK O3 GAL A 2 C2 SIA A 5 1555 1555 1.42 LINK O3 NGA A 3 C1 GAL A 4 1555 1555 1.40 LINK O4 BGC B 1 C1 GAL B 2 1555 1555 1.41 LINK O4 GAL B 2 C1 NGA B 3 1555 1555 1.43 LINK O3 GAL B 2 C2 SIA B 5 1555 1555 1.43 LINK O3 NGA B 3 C1 GAL B 4 1555 1555 1.43 CISPEP 1 THR D 92 PRO D 93 0 -0.29 CISPEP 2 THR E 92 PRO E 93 0 0.37 CISPEP 3 THR F 92 PRO F 93 0 -1.49 CISPEP 4 THR G 92 PRO G 93 0 -0.27 CISPEP 5 THR H 92 PRO H 93 0 1.13 CRYST1 103.400 67.610 101.700 90.00 131.66 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 0.009671 0.000000 0.008605 0.00000 SCALE2 0.000000 0.014791 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013161 0.00000