HEADER TOXIN 06-AUG-02 1MD2 TITLE CHOLERA TOXIN B-PENTAMER WITH DECAVALENT LIGAND BMSC-0013 COMPND MOL_ID: 1; COMPND 2 MOLECULE: CHOLERA TOXIN B SUBUNIT; COMPND 3 CHAIN: D, E, F, G, H; COMPND 4 ENGINEERED: YES SOURCE MOL_ID: 1; SOURCE 2 ORGANISM_SCIENTIFIC: VIBRIO CHOLERAE; SOURCE 3 ORGANISM_TAXID: 666; SOURCE 4 GENE: CTXB; SOURCE 5 EXPRESSION_SYSTEM: ESCHERICHIA COLI; SOURCE 6 EXPRESSION_SYSTEM_TAXID: 562 KEYWDS MULTIVALENT INHIBITOR TOXIN, TOXIN EXPDTA X-RAY DIFFRACTION AUTHOR Z.ZHANG,E.A.MERRITT,M.AHN,C.ROACH,W.G.J.HOL,E.FAN REVDAT 4 06-NOV-24 1MD2 1 REMARK LINK REVDAT 3 11-OCT-17 1MD2 1 REMARK REVDAT 2 24-FEB-09 1MD2 1 VERSN REVDAT 1 11-DEC-02 1MD2 0 JRNL AUTH Z.ZHANG,E.A.MERRITT,M.AHN,C.ROACH,Z.HOU,C.L.VERLINDE, JRNL AUTH 2 W.G.HOL,E.FAN JRNL TITL SOLUTION AND CRYSTALLOGRAPHIC STUDIES OF BRANCHED JRNL TITL 2 MULTIVALENT LIGANDS THAT INHIBIT THE RECEPTOR-BINDING OF JRNL TITL 3 CHOLERA TOXIN. JRNL REF J.AM.CHEM.SOC. V. 124 12991 2002 JRNL REFN ISSN 0002-7863 JRNL PMID 12405825 JRNL DOI 10.1021/JA027584K REMARK 2 REMARK 2 RESOLUTION. 1.45 ANGSTROMS. REMARK 3 REMARK 3 REFINEMENT. REMARK 3 PROGRAM : REFMAC REMARK 3 AUTHORS : MURSHUDOV,SKUBAK,LEBEDEV,PANNU,STEINER, REMARK 3 : NICHOLLS,WINN,LONG,VAGIN REMARK 3 REMARK 3 DATA USED IN REFINEMENT. REMARK 3 RESOLUTION RANGE HIGH (ANGSTROMS) : 1.45 REMARK 3 RESOLUTION RANGE LOW (ANGSTROMS) : 25.00 REMARK 3 DATA CUTOFF (SIGMA(F)) : 0.000 REMARK 3 COMPLETENESS FOR RANGE (%) : NULL REMARK 3 NUMBER OF REFLECTIONS : 77338 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 + TEST SET) : NULL REMARK 3 R VALUE (WORKING SET) : 0.125 REMARK 3 FREE R VALUE : 0.164 REMARK 3 FREE R VALUE TEST SET SIZE (%) : NULL REMARK 3 FREE R VALUE TEST SET COUNT : 4085 REMARK 3 REMARK 3 NUMBER OF NON-HYDROGEN ATOMS USED IN REFINEMENT. REMARK 3 PROTEIN ATOMS : 4075 REMARK 3 NUCLEIC ACID ATOMS : 0 REMARK 3 HETEROGEN ATOMS : 144 REMARK 3 SOLVENT ATOMS : 674 REMARK 3 REMARK 3 B VALUES. REMARK 3 FROM WILSON PLOT (A**2) : 21.00 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 OVERALL COORDINATE ERROR. REMARK 3 ESU BASED ON R VALUE (A): 0.074 REMARK 3 ESU BASED ON FREE R VALUE (A): 0.063 REMARK 3 ESU BASED ON MAXIMUM LIKELIHOOD (A): NULL REMARK 3 ESU FOR B VALUES BASED ON MAXIMUM LIKELIHOOD (A**2): NULL REMARK 3 REMARK 3 RMS DEVIATIONS FROM IDEAL VALUES. REMARK 3 DISTANCE RESTRAINTS. RMS SIGMA REMARK 3 BOND LENGTH (A) : 0.019 ; NULL REMARK 3 ANGLE DISTANCE (A) : 0.035 ; NULL REMARK 3 INTRAPLANAR 1-4 DISTANCE (A) : NULL ; NULL REMARK 3 H-BOND OR METAL COORDINATION (A) : NULL ; NULL REMARK 3 REMARK 3 PLANE RESTRAINT (A) : NULL ; NULL REMARK 3 CHIRAL-CENTER RESTRAINT (A**3) : NULL ; NULL REMARK 3 REMARK 3 NON-BONDED CONTACT RESTRAINTS. REMARK 3 SINGLE TORSION (A) : NULL ; NULL REMARK 3 MULTIPLE TORSION (A) : NULL ; NULL REMARK 3 H-BOND (X...Y) (A) : NULL ; NULL REMARK 3 H-BOND (X-H...Y) (A) : NULL ; NULL REMARK 3 REMARK 3 CONFORMATIONAL TORSION ANGLE RESTRAINTS. REMARK 3 SPECIFIED (DEGREES) : NULL ; NULL REMARK 3 PLANAR (DEGREES) : NULL ; NULL REMARK 3 STAGGERED (DEGREES) : NULL ; NULL REMARK 3 TRANSVERSE (DEGREES) : NULL ; 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 OTHER REFINEMENT REMARKS: NULL REMARK 4 REMARK 4 1MD2 COMPLIES WITH FORMAT V. 3.30, 13-JUL-11 REMARK 100 REMARK 100 THIS ENTRY HAS BEEN PROCESSED BY RCSB ON 08-AUG-02. REMARK 100 THE DEPOSITION ID IS D_1000016825. REMARK 200 REMARK 200 EXPERIMENTAL DETAILS REMARK 200 EXPERIMENT TYPE : X-RAY DIFFRACTION REMARK 200 DATE OF DATA COLLECTION : 30-NOV-00 REMARK 200 TEMPERATURE (KELVIN) : 100 REMARK 200 PH : 7.5 REMARK 200 NUMBER OF CRYSTALS USED : 1 REMARK 200 REMARK 200 SYNCHROTRON (Y/N) : Y REMARK 200 RADIATION SOURCE : APS REMARK 200 BEAMLINE : 19-BM REMARK 200 X-RAY GENERATOR MODEL : NULL REMARK 200 MONOCHROMATIC OR LAUE (M/L) : M REMARK 200 WAVELENGTH OR RANGE (A) : 0.9789 REMARK 200 MONOCHROMATOR : NULL REMARK 200 OPTICS : NULL REMARK 200 REMARK 200 DETECTOR TYPE : CCD REMARK 200 DETECTOR MANUFACTURER : CUSTOM-MADE REMARK 200 INTENSITY-INTEGRATION SOFTWARE : TRUNCATE, HKL-2000 REMARK 200 DATA SCALING SOFTWARE : CCP4 (TRUNCATE) REMARK 200 REMARK 200 NUMBER OF UNIQUE REFLECTIONS : 84651 REMARK 200 RESOLUTION RANGE HIGH (A) : 1.400 REMARK 200 RESOLUTION RANGE LOW (A) : 50.000 REMARK 200 REJECTION CRITERIA (SIGMA(I)) : -3.000 REMARK 200 REMARK 200 OVERALL. REMARK 200 COMPLETENESS FOR RANGE (%) : 86.0 REMARK 200 DATA REDUNDANCY : 3.000 REMARK 200 R MERGE (I) : 0.04900 REMARK 200 R SYM (I) : NULL REMARK 200 <I/SIGMA(I)> FOR THE DATA SET : 18.0000 REMARK 200 REMARK 200 IN THE HIGHEST RESOLUTION SHELL. REMARK 200 HIGHEST RESOLUTION SHELL, RANGE HIGH (A) : 1.40 REMARK 200 HIGHEST RESOLUTION SHELL, RANGE LOW (A) : 1.45 REMARK 200 COMPLETENESS FOR SHELL (%) : 32.0 REMARK 200 DATA REDUNDANCY IN SHELL : 1.50 REMARK 200 R MERGE FOR SHELL (I) : 0.32600 REMARK 200 R SYM FOR SHELL (I) : NULL REMARK 200 <I/SIGMA(I)> FOR SHELL : 1.400 REMARK 200 REMARK 200 DIFFRACTION PROTOCOL: SINGLE WAVELENGTH REMARK 200 METHOD USED TO DETERMINE THE STRUCTURE: ISOMORPHOUS TO 3CHB REMARK 200 SOFTWARE USED: ISOMORPHOUS WITH 3CHB REMARK 200 STARTING MODEL: PDB ENTRY 3CHB 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: PEG 1000, PH 7.5, VAPOR DIFFUSION, REMARK 280 SITTING DROP, TEMPERATURE RTK 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 51.06200 REMARK 290 SMTRY2 3 0.000000 1.000000 0.000000 33.08800 REMARK 290 SMTRY3 3 0.000000 0.000000 1.000000 0.00000 REMARK 290 SMTRY1 4 -1.000000 0.000000 0.000000 51.06200 REMARK 290 SMTRY2 4 0.000000 1.000000 0.000000 33.08800 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: THE CRYSTALLIZED COMPLEX CONTAINS TWO CTB PENTAMERS REMARK 300 SANDWICHING A SINGLE DECAVALENT LIGAND. THIS SANDWICH SPANS 2 REMARK 300 ASYMMETRIC UNITS. 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 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 375 REMARK 375 SPECIAL POSITION REMARK 375 THE FOLLOWING ATOMS ARE FOUND TO BE WITHIN 0.15 ANGSTROMS REMARK 375 OF A SYMMETRY RELATED ATOM AND ARE ASSUMED TO BE ON SPECIAL REMARK 375 POSITIONS. REMARK 375 REMARK 375 ATOM RES CSSEQI REMARK 375 C CYN F1208 LIES ON A SPECIAL POSITION. REMARK 375 N CYN F1208 LIES ON A SPECIAL POSITION. 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 C CYN F 1208 C17 233 F 1207 1.51 REMARK 500 O HOH D 2287 O HOH D 2289 1.61 REMARK 500 O HOH D 2320 O HOH H 235 2.04 REMARK 500 SG CSS D 9 SG CYS D 86 2.04 REMARK 500 SG CSS G 9 SG CYS G 86 2.05 REMARK 500 SG CSS F 9 SG CYS F 86 2.06 REMARK 500 SG CSS H 9 SG CYS H 86 2.07 REMARK 500 SG CSS E 9 SG CYS E 86 2.08 REMARK 500 N THR G 1 O HOH G 219 2.19 REMARK 500 REMARK 500 REMARK: NULL REMARK 500 REMARK 500 GEOMETRY AND STEREOCHEMISTRY REMARK 500 SUBTOPIC: CLOSE CONTACTS REMARK 500 REMARK 500 THE FOLLOWING ATOMS THAT ARE RELATED BY CRYSTALLOGRAPHIC REMARK 500 SYMMETRY ARE IN CLOSE CONTACT. AN ATOM LOCATED WITHIN 0.15 REMARK 500 ANGSTROMS OF A SYMMETRY RELATED ATOM IS ASSUMED TO BE ON A REMARK 500 SPECIAL POSITION AND IS, THEREFORE, LISTED IN REMARK 375 REMARK 500 INSTEAD OF REMARK 500. ATOMS WITH NON-BLANK ALTERNATE REMARK 500 LOCATION INDICATORS ARE NOT INCLUDED IN THE CALCULATIONS. REMARK 500 REMARK 500 DISTANCE CUTOFF: REMARK 500 2.2 ANGSTROMS FOR CONTACTS NOT INVOLVING HYDROGEN ATOMS REMARK 500 1.6 ANGSTROMS FOR CONTACTS INVOLVING HYDROGEN ATOMS REMARK 500 REMARK 500 ATM1 RES C SSEQI ATM2 RES C SSEQI SSYMOP DISTANCE REMARK 500 OG SER F 55 OG SER F 55 2555 1.89 REMARK 500 O HOH D 2310 O HOH G 215 3445 2.19 REMARK 500 REMARK 500 REMARK: NULL 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 GLU H 83 CD GLU H 83 OE1 -0.080 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 THR D 1 N - CA - CB ANGL. DEV. = -12.5 DEGREES REMARK 500 ASP D 7 CB - CG - OD1 ANGL. DEV. = 7.7 DEGREES REMARK 500 HIS D 18 CE1 - NE2 - CD2 ANGL. DEV. = 5.8 DEGREES REMARK 500 ASP D 22 CB - CG - OD1 ANGL. DEV. = 6.2 DEGREES REMARK 500 PHE D 48 CB - CG - CD1 ANGL. DEV. = -5.5 DEGREES REMARK 500 ARG D 67 NE - CZ - NH1 ANGL. DEV. = 3.5 DEGREES REMARK 500 ARG D 67 NE - CZ - NH2 ANGL. DEV. = -6.3 DEGREES REMARK 500 ARG D 73 CD - NE - CZ ANGL. DEV. = 9.8 DEGREES REMARK 500 ARG D 73 NE - CZ - NH1 ANGL. DEV. = -4.2 DEGREES REMARK 500 HIS D 94 CE1 - NE2 - CD2 ANGL. DEV. = 8.0 DEGREES REMARK 500 ASN D 103 CA - CB - CG ANGL. DEV. = 14.8 DEGREES REMARK 500 PHE E 48 CB - CG - CD1 ANGL. DEV. = -5.0 DEGREES REMARK 500 ARG E 67 NE - CZ - NH1 ANGL. DEV. = 3.4 DEGREES REMARK 500 THR F 1 N - CA - CB ANGL. DEV. = -11.9 DEGREES REMARK 500 GLU F 11 OE1 - CD - OE2 ANGL. DEV. = -8.6 DEGREES REMARK 500 HIS F 18 CE1 - NE2 - CD2 ANGL. DEV. = 6.0 DEGREES REMARK 500 ASP G 7 CB - CG - OD1 ANGL. DEV. = 7.2 DEGREES REMARK 500 HIS G 18 CE1 - NE2 - CD2 ANGL. DEV. = 7.0 DEGREES REMARK 500 PHE G 42 CB - CG - CD1 ANGL. DEV. = 5.2 DEGREES REMARK 500 ARG G 67 NE - CZ - NH2 ANGL. DEV. = -6.5 DEGREES REMARK 500 TYR G 76 CB - CG - CD2 ANGL. DEV. = -4.1 DEGREES REMARK 500 TYR G 76 CB - CG - CD1 ANGL. DEV. = 3.8 DEGREES REMARK 500 TYR H 27 CG - CD2 - CE2 ANGL. DEV. = -5.4 DEGREES REMARK 500 ARG H 35 NE - CZ - NH2 ANGL. DEV. = -7.4 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 E 34 -1.54 76.58 REMARK 500 GLU E 83 -72.00 -78.87 REMARK 500 REMARK 500 REMARK: NULL REMARK 600 REMARK 600 HETEROGEN REMARK 600 LIGAND 233 (BMSC-0013) IS A DECAVALENT LIGAND REMARK 600 CONSISTING OF A PENTACYCLEN CORE TO WHICH ARE REMARK 600 ATTACHED FIVE LONG ARMS, EACH CONTAINING FOUR REMARK 600 'LINKER' MOIETIES FOLLOWED BY A SQUARIC ACID REMARK 600 MOIETY AND THEN BRANCHING TO PRESENT TWO MONOVALENT REMARK 600 LIGANDS DERIVED FROM BETA-D-GALACTOSE. A SINGLE COPY REMARK 600 OF THE DECAVALENT LIGAND LIES ON A 2-FOLD AND REMARK 600 STRADDLES TWO CRYSTALLOGRAPHIC ASYMMETRIC UNITS. REMARK 600 THE CENTRAL CORE AND LINKER GROUPS DO NOT SATISFY REMARK 600 CRYSTALLOGRAPHIC SYMMETRY AND ARE NOT VISIBLE IN REMARK 600 THE STRUCTURE AND HENCE NOT PRESENT IN THIS MODEL. REMARK 600 THE SULFUR ATOM BELONGS TO AN UNKNOWN SPECIES REMARK 600 (RESIDUE 109, CHAINS D-H) CONSTITUTING A PARTIAL- REMARK 600 OCCUPANCY IMPROPERLY FORMED CYSTEINE DISULFIDE BETWEEN REMARK 600 RESIDUES 9 AND 86. THAT IS, ~80% OF THE TIME THERE IS A REMARK 600 9-86 DISULFIDE AND ~20% OF THE TIME THERE IS A 9-??? REMARK 600 DISULFIDE. REMARK 650 REMARK 650 HELIX REMARK 650 DETERMINATION METHOD: AUTHOR PROVIDED REMARK 700 REMARK 700 SHEET REMARK 700 DETERMINATION METHOD: AUTHOR PROVIDED REMARK 800 REMARK 800 SITE REMARK 800 SITE_IDENTIFIER: AC1 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE CYN F 1208 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC2 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 233 D 2201 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC3 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 233 D 2203 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC4 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SQ D 2202 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC5 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 233 E 1204 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC6 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 233 E 1206 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC7 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE SQ E 1205 REMARK 800 REMARK 800 SITE_IDENTIFIER: AC8 REMARK 800 EVIDENCE_CODE: SOFTWARE REMARK 800 SITE_DESCRIPTION: BINDING SITE FOR RESIDUE 233 F 1207 REMARK 900 REMARK 900 RELATED ENTRIES REMARK 900 RELATED ID: 3CHB RELATED DB: PDB REMARK 900 CHOLERA TOXIN PENTAMER WITH RECEPTOR GM1 OLIGOSACCHARIDE REMARK 900 RELATED ID: 1LLR RELATED DB: PDB REMARK 900 CHOLERA TOXIN PENTAMER WITH PENTAVALENT LIGAND BMSC-0012 DBREF 1MD2 D 1 103 GB 48890 X58785 22 124 DBREF 1MD2 E 1 103 GB 48890 X58785 22 124 DBREF 1MD2 F 1 103 GB 48890 X58785 22 124 DBREF 1MD2 G 1 103 GB 48890 X58785 22 124 DBREF 1MD2 H 1 103 GB 48890 X58785 22 124 SEQRES 1 D 103 THR PRO GLN ASN ILE THR ASP LEU CSS 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 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 CSS 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 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 CSS 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 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 CSS 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 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 CSS 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 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 MODRES 1MD2 CSS D 9 CYS S-MERCAPTOCYSTEINE MODRES 1MD2 CSS E 9 CYS S-MERCAPTOCYSTEINE MODRES 1MD2 CSS F 9 CYS S-MERCAPTOCYSTEINE MODRES 1MD2 CSS G 9 CYS S-MERCAPTOCYSTEINE MODRES 1MD2 CSS H 9 CYS S-MERCAPTOCYSTEINE HET CSS D 9 8 HET CSS E 9 8 HET CSS F 9 8 HET CSS G 9 8 HET CSS H 9 8 HET 233 D2201 48 HET 233 D2203 48 HET SQ D2202 12 HET 233 E1204 24 HET 233 E1206 24 HET SQ E1205 11 HET CYN F1208 2 HET 233 F1207 24 HETNAM CSS S-MERCAPTOCYSTEINE HETNAM 233 [5-(3,4,5-TRIHYDROXY-6-HYDROXYMETHYL-TETRAHYDRO-PYRAN- HETNAM 2 233 2-YLCARBAMOYL)-PENTYL]-CARBAMIC ACID METHYL ESTER HETNAM SQ 3-ETHYLAMINO-4-METHYLAMINO-CYCLOBUTANE-1,2-DIONE HETNAM CYN CYANIDE ION HETSYN 233 BMSC-0013 HETSYN SQ SQUARIC ACID FORMUL 1 CSS 5(C3 H7 N O2 S2) FORMUL 6 233 5(C14 H26 N2 O8) FORMUL 8 SQ 2(C7 H12 N2 O2) FORMUL 12 CYN C N 1- FORMUL 14 HOH *674(H2 O) HELIX 1 1 ASN D 4 GLU D 11 1 8 HELIX 2 2 ILE D 58 GLU D 79 1 22 HELIX 3 3 ASN E 4 GLU E 11 1 8 HELIX 4 4 SER E 60 GLU E 79 1 20 HELIX 5 5 ASN F 4 ALA F 10 1 7 HELIX 6 6 SER F 60 GLU F 79 1 20 HELIX 7 7 ASN G 4 ALA G 10 1 7 HELIX 8 8 SER G 60 GLU G 79 1 20 HELIX 9 9 ASN H 4 GLU H 11 1 8 HELIX 10 10 SER H 60 GLU H 79 1 20 LINK C LEU D 8 N CSS D 9 1555 1555 1.32 LINK C CSS D 9 N ALA D 10 1555 1555 1.33 LINK C17A233 D2201 C5 A SQ D2202 1555 1555 1.52 LINK C17B233 D2201 C5 B SQ D2202 1555 1555 1.53 LINK C5 A SQ D2202 C17A233 D2203 1555 1555 1.52 LINK C5 B SQ D2202 C17B233 D2203 1555 1555 1.53 LINK C LEU E 8 N CSS E 9 1555 1555 1.34 LINK C CSS E 9 N ALA E 10 1555 1555 1.35 LINK C17 233 E1204 C5 SQ E1205 1555 1555 1.64 LINK C5 SQ E1205 C17 233 E1206 1555 1555 1.63 LINK C LEU F 8 N CSS F 9 1555 1555 1.34 LINK C CSS F 9 N ALA F 10 1555 1555 1.33 LINK C LEU G 8 N CSS G 9 1555 1555 1.33 LINK C CSS G 9 N ALA G 10 1555 1555 1.31 LINK C LEU H 8 N CSS H 9 1555 1555 1.33 LINK C CSS H 9 N ALA H 10 1555 1555 1.34 CISPEP 1 THR D 92 PRO D 93 0 -12.15 CISPEP 2 THR E 92 PRO E 93 0 -5.95 CISPEP 3 THR F 92 PRO F 93 0 -9.49 CISPEP 4 THR G 92 PRO G 93 0 -8.86 CISPEP 5 THR H 92 PRO H 93 0 -8.64 SITE 1 AC1 1 233 F1207 SITE 1 AC2 19 HIS D 13 GLU D 51 GLN D 56 HIS D 57 SITE 2 AC2 19 ILE D 58 GLN D 61 TRP D 88 ASN D 90 SITE 3 AC2 19 LYS D 91 SQ D2202 233 D2203 HOH D2244 SITE 4 AC2 19 HOH D2260 HOH D2319 HOH D2345 HOH D2349 SITE 5 AC2 19 HOH E1227 ILE H 58 ASP H 59 SITE 1 AC3 19 233 D2201 SQ D2202 HOH D2224 HOH D2321 SITE 2 AC3 19 GLN E 16 GLU H 51 SER H 55 GLN H 56 SITE 3 AC3 19 HIS H 57 ILE H 58 GLN H 61 TRP H 88 SITE 4 AC3 19 ASN H 90 LYS H 91 HOH H 127 HOH H 133 SITE 5 AC3 19 HOH H 134 HOH H 173 HOH H 250 SITE 1 AC4 4 233 D2201 233 D2203 GLN E 16 HIS E 18 SITE 1 AC5 15 GLU E 51 GLN E 56 HIS E 57 GLN E 61 SITE 2 AC5 15 TRP E 88 ASN E 90 LYS E 91 SQ E1205 SITE 3 AC5 15 233 E1206 HOH E1245 HOH E1280 HOH E1287 SITE 4 AC5 15 HOH E1311 HOH F1225 SER G 55 SITE 1 AC6 19 233 E1204 SQ E1205 GLU G 51 SER G 55 SITE 2 AC6 19 GLN G 56 HIS G 57 ILE G 58 GLN G 61 SITE 3 AC6 19 TRP G 88 ASN G 90 LYS G 91 HOH G 115 SITE 4 AC6 19 HOH G 129 HOH G 132 HOH G 139 HOH G 182 SITE 5 AC6 19 HOH G 220 HOH G 239 HOH H 128 SITE 1 AC7 8 233 E1204 233 E1206 HOH E1253 HOH E1311 SITE 2 AC7 8 GLY G 54 SER G 55 HIS G 57 LYS G 62 SITE 1 AC8 13 GLU F 51 SER F 55 GLN F 56 HIS F 57 SITE 2 AC8 13 GLN F 61 TRP F 88 ASN F 90 LYS F 91 SITE 3 AC8 13 CYN F1208 HOH F1228 HOH F1237 HOH F1321 SITE 4 AC8 13 HOH F1332 CRYST1 102.124 66.176 78.221 90.00 106.33 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 0.009792 0.000000 0.002869 0.00000 SCALE2 0.000000 0.015111 0.000000 0.00000 SCALE3 0.000000 0.000000 0.013322 0.00000