0.009747 0.000000 0.008644 0.000000 0.015013 0.000000 0.000000 0.000000 0.013405 0.00000 0.00000 0.00000 CIS PROLINE - PRO D 93 CIS PROLINE - PRO E 93 CIS PROLINE - PRO F 93 CIS PROLINE - PRO G 93 CIS PROLINE - PRO H 93 Merritt, E.A. Hol, W.G.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 20 90.00 131.57 90.00 102.600 66.610 99.710 C3 H7 N O2 89.093 y ALANINE L-peptide linking C6 H15 N4 O2 1 175.209 y ARGININE L-peptide linking C4 H8 N2 O3 132.118 y ASPARAGINE L-peptide linking C4 H7 N O4 133.103 y ASPARTIC ACID L-peptide linking Cl -1 35.453 CHLORIDE ION non-polymer C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking C5 H10 N2 O3 146.144 y GLUTAMINE L-peptide linking C5 H9 N O4 147.129 y GLUTAMIC ACID L-peptide linking C2 H5 N O2 75.067 y GLYCINE peptide linking C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking H2 O 18.015 WATER non-polymer C6 H13 N O2 131.173 y ISOLEUCINE L-peptide linking C6 H13 N O2 131.173 y LEUCINE L-peptide linking C6 H15 N2 O2 1 147.195 y LYSINE L-peptide linking C5 H11 N O2 S 149.211 y METHIONINE L-peptide linking C9 H11 N O2 165.189 y PHENYLALANINE L-peptide linking C5 H9 N O2 115.130 y PROLINE L-peptide linking C3 H7 N O3 105.093 y SERINE L-peptide linking C4 H9 N O3 119.119 y THREONINE L-peptide linking C11 H12 N2 O2 204.225 y TRYPTOPHAN L-peptide linking C9 H11 N O3 181.189 y TYROSINE L-peptide linking C5 H11 N O2 117.146 y VALINE L-peptide linking UK Structure STRUE6 2005 0969-2126 3 561 570 10.1016/S0969-2126(01)00190-3 8590017 Surprising leads for a cholera toxin receptor-binding antagonist: crystallographic studies of CTB mutants. 1995 US Protein Sci. PRCIEI 0795 0961-8368 3 166 2.2 Angstroms Crystal Structure of Cholera Toxin B5 Pentamer Bound to Receptor GM1 Pentasaccharide 1994 UK Mol.Microbiol. MOMIEE 2007 0950-382X 5 1755 Analysis of Structure and Function of the B Subunit of Cholera Toxin by the Use of Site-Directed Mutagenesis 1991 10.2210/pdb1chp/pdb pdb_00001chp 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 1 AREA DETECTOR 1994-07-14 SIEMENS X1000 M x-ray 1 1.54 1.0 1.54 11681.303 CHOLERA TOXIN B PENTAMER G33D 5 man polymer 35.453 CHLORIDE ION 1 syn non-polymer 18.015 water 248 nat water CHOLERAGEN no no TPQNITDLCAEYHNTQIHTLNDKIFSYTESLADKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEA KVEKLCVWNNKTPHAIAAISMAN TPQNITDLCAEYHNTQIHTLNDKIFSYTESLADKREMAIITFKNGATFQVEVPGSQHIDSQKKAIERMKDTLRIAYLTEA KVEKLCVWNNKTPHAIAAISMAN D,E,F,G,H polypeptide(L) n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n Vibrio OGAWA 41 (CLASSICAL) Escherichia sample 666 Vibrio cholerae 562 Escherichia coli 2.18 43.62 7.5 pH 7.5 database_2 pdbx_database_status struct_ref_seq_dif struct_site repository Initial release Version format compliance Version format compliance Database references Derived calculations Other 1 0 1996-03-08 1 1 2008-03-24 1 2 2011-07-13 1 3 2021-11-03 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _struct_ref_seq_dif.details _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id SHEET IN THE PENTAMER THE BETA SHEETS FROM ADJACENT MONOMERS COMBINE TO FORM A CONTINUOUS SIX-STRANDED ANTI-PARALLEL SHEET ACROSS EACH MONOMER-MONOMER INTERFACE. Y BNL 1995-02-15 REL REL CL CHLORIDE ION HOH water THE FIVE IDENTICAL B SUBUNITS ARE LABELLED AS CHAINS D, E, F, G, AND H CORRESPONDING TO CHAIN IDENTIFIERS USED FOR THE RELATED HEAT-LABILE ENTEROTOXIN (LT) FROM ESCHERICHIA COLI AND FOR THE WILD TYPE CHOLERA TOXIN/RECEPTOR COMPLEX. SUBUNIT CHAIN RESIDUES B#1 D 1 - 103 B#2 E 1 - 103 B#3 F 1 - 103 B#4 G 1 - 103 B#5 H 1 - 103 WATER 1 - 248 CHLORIDE 249 - 249 CL 249 2 CL CL 249 H HOH 3 3 HOH HOH 104 D HOH 5 3 HOH HOH 105 D HOH 7 3 HOH HOH 106 D HOH 10 3 HOH HOH 107 D HOH 16 3 HOH HOH 108 D HOH 25 3 HOH HOH 109 D HOH 42 3 HOH HOH 110 D HOH 43 3 HOH HOH 111 D HOH 46 3 HOH HOH 112 D HOH 51 3 HOH HOH 113 D HOH 57 3 HOH HOH 114 D HOH 58 3 HOH HOH 115 D HOH 62 3 HOH HOH 116 D HOH 67 3 HOH HOH 117 D HOH 69 3 HOH HOH 118 D HOH 70 3 HOH HOH 119 D HOH 75 3 HOH HOH 120 D HOH 79 3 HOH HOH 121 D HOH 89 3 HOH HOH 122 D HOH 90 3 HOH HOH 123 D HOH 91 3 HOH HOH 124 D HOH 93 3 HOH HOH 125 D HOH 98 3 HOH HOH 126 D HOH 101 3 HOH HOH 127 D HOH 105 3 HOH HOH 128 D HOH 107 3 HOH HOH 129 D HOH 120 3 HOH HOH 130 D HOH 124 3 HOH HOH 131 D HOH 134 3 HOH HOH 132 D HOH 136 3 HOH HOH 133 D HOH 138 3 HOH HOH 134 D HOH 142 3 HOH HOH 135 D HOH 154 3 HOH HOH 136 D HOH 163 3 HOH HOH 137 D HOH 171 3 HOH HOH 138 D HOH 172 3 HOH HOH 139 D HOH 175 3 HOH HOH 140 D HOH 176 3 HOH HOH 141 D HOH 188 3 HOH HOH 142 D HOH 195 3 HOH HOH 143 D HOH 199 3 HOH HOH 144 D HOH 206 3 HOH HOH 145 D HOH 213 3 HOH HOH 146 D HOH 221 3 HOH HOH 147 D HOH 226 3 HOH HOH 148 D HOH 232 3 HOH HOH 149 D HOH 240 3 HOH HOH 150 D HOH 9 3 HOH HOH 104 E HOH 14 3 HOH HOH 105 E HOH 21 3 HOH HOH 106 E HOH 22 3 HOH HOH 107 E HOH 34 3 HOH HOH 108 E HOH 36 3 HOH HOH 109 E HOH 39 3 HOH HOH 110 E HOH 44 3 HOH HOH 111 E HOH 50 3 HOH HOH 112 E HOH 54 3 HOH HOH 113 E HOH 61 3 HOH HOH 114 E HOH 65 3 HOH HOH 115 E HOH 76 3 HOH HOH 116 E HOH 77 3 HOH HOH 117 E HOH 85 3 HOH HOH 118 E HOH 87 3 HOH HOH 119 E HOH 97 3 HOH HOH 120 E HOH 104 3 HOH HOH 121 E HOH 108 3 HOH HOH 122 E HOH 117 3 HOH HOH 123 E HOH 125 3 HOH HOH 124 E HOH 135 3 HOH HOH 125 E HOH 137 3 HOH HOH 126 E HOH 139 3 HOH HOH 127 E HOH 152 3 HOH HOH 128 E HOH 153 3 HOH HOH 129 E HOH 157 3 HOH HOH 130 E HOH 160 3 HOH HOH 131 E HOH 161 3 HOH HOH 132 E HOH 165 3 HOH HOH 133 E HOH 166 3 HOH HOH 134 E HOH 167 3 HOH HOH 135 E HOH 169 3 HOH HOH 136 E HOH 173 3 HOH HOH 137 E HOH 178 3 HOH HOH 138 E HOH 179 3 HOH HOH 139 E HOH 181 3 HOH HOH 140 E HOH 182 3 HOH HOH 141 E HOH 184 3 HOH HOH 142 E HOH 186 3 HOH HOH 143 E HOH 189 3 HOH HOH 144 E HOH 194 3 HOH HOH 145 E HOH 203 3 HOH HOH 146 E HOH 208 3 HOH HOH 147 E HOH 212 3 HOH HOH 148 E HOH 214 3 HOH HOH 149 E HOH 215 3 HOH HOH 150 E HOH 216 3 HOH HOH 151 E HOH 223 3 HOH HOH 152 E HOH 224 3 HOH HOH 153 E HOH 236 3 HOH HOH 154 E HOH 237 3 HOH HOH 155 E HOH 238 3 HOH HOH 156 E HOH 244 3 HOH HOH 157 E HOH 11 3 HOH HOH 104 F HOH 13 3 HOH HOH 105 F HOH 17 3 HOH HOH 106 F HOH 27 3 HOH HOH 107 F HOH 28 3 HOH HOH 108 F HOH 29 3 HOH HOH 109 F HOH 30 3 HOH HOH 110 F HOH 33 3 HOH HOH 111 F HOH 37 3 HOH HOH 112 F HOH 41 3 HOH HOH 113 F HOH 45 3 HOH HOH 114 F HOH 56 3 HOH HOH 115 F HOH 59 3 HOH HOH 116 F HOH 63 3 HOH HOH 117 F HOH 64 3 HOH HOH 118 F HOH 66 3 HOH HOH 119 F HOH 72 3 HOH HOH 120 F HOH 81 3 HOH HOH 121 F HOH 94 3 HOH HOH 122 F HOH 96 3 HOH HOH 123 F HOH 103 3 HOH HOH 124 F HOH 109 3 HOH HOH 125 F HOH 112 3 HOH HOH 126 F HOH 113 3 HOH HOH 127 F HOH 114 3 HOH HOH 128 F HOH 116 3 HOH HOH 129 F HOH 119 3 HOH HOH 130 F HOH 121 3 HOH HOH 131 F HOH 126 3 HOH HOH 132 F HOH 128 3 HOH HOH 133 F HOH 130 3 HOH HOH 134 F HOH 133 3 HOH HOH 135 F HOH 141 3 HOH HOH 136 F HOH 143 3 HOH HOH 137 F HOH 144 3 HOH HOH 138 F HOH 158 3 HOH HOH 139 F HOH 162 3 HOH HOH 140 F HOH 174 3 HOH HOH 141 F HOH 183 3 HOH HOH 142 F HOH 187 3 HOH HOH 143 F HOH 193 3 HOH HOH 144 F HOH 200 3 HOH HOH 145 F HOH 201 3 HOH HOH 146 F HOH 207 3 HOH HOH 147 F HOH 217 3 HOH HOH 148 F HOH 218 3 HOH HOH 149 F HOH 220 3 HOH HOH 150 F HOH 222 3 HOH HOH 151 F HOH 225 3 HOH HOH 152 F HOH 227 3 HOH HOH 153 F HOH 228 3 HOH HOH 154 F HOH 230 3 HOH HOH 155 F HOH 231 3 HOH HOH 156 F HOH 233 3 HOH HOH 157 F HOH 235 3 HOH HOH 158 F HOH 239 3 HOH HOH 159 F HOH 246 3 HOH HOH 160 F HOH 1 3 HOH HOH 104 G HOH 2 3 HOH HOH 105 G HOH 8 3 HOH HOH 106 G HOH 12 3 HOH HOH 107 G HOH 19 3 HOH HOH 108 G HOH 20 3 HOH HOH 109 G HOH 32 3 HOH HOH 110 G HOH 35 3 HOH HOH 111 G HOH 38 3 HOH HOH 112 G HOH 49 3 HOH HOH 113 G HOH 52 3 HOH HOH 114 G HOH 53 3 HOH HOH 115 G HOH 71 3 HOH HOH 116 G HOH 73 3 HOH HOH 117 G HOH 78 3 HOH HOH 118 G HOH 84 3 HOH HOH 119 G HOH 86 3 HOH HOH 120 G HOH 88 3 HOH HOH 121 G HOH 99 3 HOH HOH 122 G HOH 100 3 HOH HOH 123 G HOH 102 3 HOH HOH 124 G HOH 110 3 HOH HOH 125 G HOH 118 3 HOH HOH 126 G HOH 122 3 HOH HOH 127 G HOH 131 3 HOH HOH 128 G HOH 132 3 HOH HOH 129 G HOH 145 3 HOH HOH 130 G HOH 146 3 HOH HOH 131 G HOH 147 3 HOH HOH 132 G HOH 150 3 HOH HOH 133 G HOH 155 3 HOH HOH 134 G HOH 156 3 HOH HOH 135 G HOH 159 3 HOH HOH 136 G HOH 164 3 HOH HOH 137 G HOH 185 3 HOH HOH 138 G HOH 190 3 HOH HOH 139 G HOH 191 3 HOH HOH 140 G HOH 192 3 HOH HOH 141 G HOH 197 3 HOH HOH 142 G HOH 202 3 HOH HOH 143 G HOH 205 3 HOH HOH 144 G HOH 209 3 HOH HOH 145 G HOH 219 3 HOH HOH 146 G HOH 242 3 HOH HOH 147 G HOH 4 3 HOH HOH 250 H HOH 6 3 HOH HOH 251 H HOH 15 3 HOH HOH 252 H HOH 18 3 HOH HOH 253 H HOH 23 3 HOH HOH 254 H HOH 24 3 HOH HOH 255 H HOH 26 3 HOH HOH 256 H HOH 31 3 HOH HOH 257 H HOH 40 3 HOH HOH 258 H HOH 47 3 HOH HOH 259 H HOH 48 3 HOH HOH 260 H HOH 55 3 HOH HOH 261 H HOH 60 3 HOH HOH 262 H HOH 68 3 HOH HOH 263 H HOH 74 3 HOH HOH 264 H HOH 80 3 HOH HOH 265 H HOH 82 3 HOH HOH 266 H HOH 83 3 HOH HOH 267 H HOH 92 3 HOH HOH 268 H HOH 95 3 HOH HOH 269 H HOH 106 3 HOH HOH 270 H HOH 111 3 HOH HOH 271 H HOH 115 3 HOH HOH 272 H HOH 123 3 HOH HOH 273 H HOH 127 3 HOH HOH 274 H HOH 129 3 HOH HOH 275 H HOH 140 3 HOH HOH 276 H HOH 148 3 HOH HOH 277 H HOH 149 3 HOH HOH 278 H HOH 151 3 HOH HOH 279 H HOH 168 3 HOH HOH 280 H HOH 170 3 HOH HOH 281 H HOH 177 3 HOH HOH 282 H HOH 180 3 HOH HOH 283 H HOH 196 3 HOH HOH 284 H HOH 198 3 HOH HOH 285 H HOH 204 3 HOH HOH 286 H HOH 210 3 HOH HOH 287 H HOH 211 3 HOH HOH 288 H HOH 229 3 HOH HOH 289 H HOH 234 3 HOH HOH 290 H HOH 241 3 HOH HOH 291 H HOH 243 3 HOH HOH 292 H HOH 245 3 HOH HOH 293 H HOH 247 3 HOH HOH 294 H HOH 248 3 HOH HOH 295 H THR 1 n 1 THR 1 D PRO 2 n 2 PRO 2 D GLN 3 n 3 GLN 3 D ASN 4 n 4 ASN 4 D ILE 5 n 5 ILE 5 D THR 6 n 6 THR 6 D ASP 7 n 7 ASP 7 D LEU 8 n 8 LEU 8 D CYS 9 n 9 CYS 9 D ALA 10 n 10 ALA 10 D GLU 11 n 11 GLU 11 D TYR 12 n 12 TYR 12 D HIS 13 n 13 HIS 13 D ASN 14 n 14 ASN 14 D THR 15 n 15 THR 15 D GLN 16 n 16 GLN 16 D ILE 17 n 17 ILE 17 D HIS 18 n 18 HIS 18 D THR 19 n 19 THR 19 D LEU 20 n 20 LEU 20 D ASN 21 n 21 ASN 21 D ASP 22 n 22 ASP 22 D LYS 23 n 23 LYS 23 D ILE 24 n 24 ILE 24 D PHE 25 n 25 PHE 25 D SER 26 n 26 SER 26 D TYR 27 n 27 TYR 27 D THR 28 n 28 THR 28 D GLU 29 n 29 GLU 29 D SER 30 n 30 SER 30 D LEU 31 n 31 LEU 31 D ALA 32 n 32 ALA 32 D ASP 33 n 33 ASP 33 D LYS 34 n 34 LYS 34 D ARG 35 n 35 ARG 35 D GLU 36 n 36 GLU 36 D MET 37 n 37 MET 37 D ALA 38 n 38 ALA 38 D ILE 39 n 39 ILE 39 D ILE 40 n 40 ILE 40 D THR 41 n 41 THR 41 D PHE 42 n 42 PHE 42 D LYS 43 n 43 LYS 43 D ASN 44 n 44 ASN 44 D GLY 45 n 45 GLY 45 D ALA 46 n 46 ALA 46 D THR 47 n 47 THR 47 D PHE 48 n 48 PHE 48 D GLN 49 n 49 GLN 49 D VAL 50 n 50 VAL 50 D GLU 51 n 51 GLU 51 D VAL 52 n 52 VAL 52 D PRO 53 n 53 PRO 53 D GLY 54 n 54 GLY 54 D SER 55 n 55 SER 55 D GLN 56 n 56 GLN 56 D HIS 57 n 57 HIS 57 D ILE 58 n 58 ILE 58 D ASP 59 n 59 ASP 59 D SER 60 n 60 SER 60 D GLN 61 n 61 GLN 61 D LYS 62 n 62 LYS 62 D LYS 63 n 63 LYS 63 D ALA 64 n 64 ALA 64 D ILE 65 n 65 ILE 65 D GLU 66 n 66 GLU 66 D ARG 67 n 67 ARG 67 D MET 68 n 68 MET 68 D LYS 69 n 69 LYS 69 D ASP 70 n 70 ASP 70 D THR 71 n 71 THR 71 D LEU 72 n 72 LEU 72 D ARG 73 n 73 ARG 73 D ILE 74 n 74 ILE 74 D ALA 75 n 75 ALA 75 D TYR 76 n 76 TYR 76 D LEU 77 n 77 LEU 77 D THR 78 n 78 THR 78 D GLU 79 n 79 GLU 79 D ALA 80 n 80 ALA 80 D LYS 81 n 81 LYS 81 D VAL 82 n 82 VAL 82 D GLU 83 n 83 GLU 83 D LYS 84 n 84 LYS 84 D LEU 85 n 85 LEU 85 D CYS 86 n 86 CYS 86 D VAL 87 n 87 VAL 87 D TRP 88 n 88 TRP 88 D ASN 89 n 89 ASN 89 D ASN 90 n 90 ASN 90 D LYS 91 n 91 LYS 91 D THR 92 n 92 THR 92 D PRO 93 n 93 PRO 93 D HIS 94 n 94 HIS 94 D ALA 95 n 95 ALA 95 D ILE 96 n 96 ILE 96 D ALA 97 n 97 ALA 97 D ALA 98 n 98 ALA 98 D ILE 99 n 99 ILE 99 D SER 100 n 100 SER 100 D MET 101 n 101 MET 101 D ALA 102 n 102 ALA 102 D ASN 103 n 103 ASN 103 D THR 1 n 1 THR 1 E PRO 2 n 2 PRO 2 E GLN 3 n 3 GLN 3 E ASN 4 n 4 ASN 4 E ILE 5 n 5 ILE 5 E THR 6 n 6 THR 6 E ASP 7 n 7 ASP 7 E LEU 8 n 8 LEU 8 E CYS 9 n 9 CYS 9 E ALA 10 n 10 ALA 10 E GLU 11 n 11 GLU 11 E TYR 12 n 12 TYR 12 E HIS 13 n 13 HIS 13 E ASN 14 n 14 ASN 14 E THR 15 n 15 THR 15 E GLN 16 n 16 GLN 16 E ILE 17 n 17 ILE 17 E HIS 18 n 18 HIS 18 E THR 19 n 19 THR 19 E LEU 20 n 20 LEU 20 E ASN 21 n 21 ASN 21 E ASP 22 n 22 ASP 22 E LYS 23 n 23 LYS 23 E ILE 24 n 24 ILE 24 E PHE 25 n 25 PHE 25 E SER 26 n 26 SER 26 E TYR 27 n 27 TYR 27 E THR 28 n 28 THR 28 E GLU 29 n 29 GLU 29 E SER 30 n 30 SER 30 E LEU 31 n 31 LEU 31 E ALA 32 n 32 ALA 32 E ASP 33 n 33 ASP 33 E LYS 34 n 34 LYS 34 E ARG 35 n 35 ARG 35 E GLU 36 n 36 GLU 36 E MET 37 n 37 MET 37 E ALA 38 n 38 ALA 38 E ILE 39 n 39 ILE 39 E ILE 40 n 40 ILE 40 E THR 41 n 41 THR 41 E PHE 42 n 42 PHE 42 E LYS 43 n 43 LYS 43 E ASN 44 n 44 ASN 44 E GLY 45 n 45 GLY 45 E ALA 46 n 46 ALA 46 E THR 47 n 47 THR 47 E PHE 48 n 48 PHE 48 E GLN 49 n 49 GLN 49 E VAL 50 n 50 VAL 50 E GLU 51 n 51 GLU 51 E VAL 52 n 52 VAL 52 E PRO 53 n 53 PRO 53 E GLY 54 n 54 GLY 54 E SER 55 n 55 SER 55 E GLN 56 n 56 GLN 56 E HIS 57 n 57 HIS 57 E ILE 58 n 58 ILE 58 E ASP 59 n 59 ASP 59 E SER 60 n 60 SER 60 E GLN 61 n 61 GLN 61 E LYS 62 n 62 LYS 62 E LYS 63 n 63 LYS 63 E ALA 64 n 64 ALA 64 E ILE 65 n 65 ILE 65 E GLU 66 n 66 GLU 66 E ARG 67 n 67 ARG 67 E MET 68 n 68 MET 68 E LYS 69 n 69 LYS 69 E ASP 70 n 70 ASP 70 E THR 71 n 71 THR 71 E LEU 72 n 72 LEU 72 E ARG 73 n 73 ARG 73 E ILE 74 n 74 ILE 74 E ALA 75 n 75 ALA 75 E TYR 76 n 76 TYR 76 E LEU 77 n 77 LEU 77 E THR 78 n 78 THR 78 E GLU 79 n 79 GLU 79 E ALA 80 n 80 ALA 80 E LYS 81 n 81 LYS 81 E VAL 82 n 82 VAL 82 E GLU 83 n 83 GLU 83 E LYS 84 n 84 LYS 84 E LEU 85 n 85 LEU 85 E CYS 86 n 86 CYS 86 E VAL 87 n 87 VAL 87 E TRP 88 n 88 TRP 88 E ASN 89 n 89 ASN 89 E ASN 90 n 90 ASN 90 E LYS 91 n 91 LYS 91 E THR 92 n 92 THR 92 E PRO 93 n 93 PRO 93 E HIS 94 n 94 HIS 94 E ALA 95 n 95 ALA 95 E ILE 96 n 96 ILE 96 E ALA 97 n 97 ALA 97 E ALA 98 n 98 ALA 98 E ILE 99 n 99 ILE 99 E SER 100 n 100 SER 100 E MET 101 n 101 MET 101 E ALA 102 n 102 ALA 102 E ASN 103 n 103 ASN 103 E THR 1 n 1 THR 1 F PRO 2 n 2 PRO 2 F GLN 3 n 3 GLN 3 F ASN 4 n 4 ASN 4 F ILE 5 n 5 ILE 5 F THR 6 n 6 THR 6 F ASP 7 n 7 ASP 7 F LEU 8 n 8 LEU 8 F CYS 9 n 9 CYS 9 F ALA 10 n 10 ALA 10 F GLU 11 n 11 GLU 11 F TYR 12 n 12 TYR 12 F HIS 13 n 13 HIS 13 F ASN 14 n 14 ASN 14 F THR 15 n 15 THR 15 F GLN 16 n 16 GLN 16 F ILE 17 n 17 ILE 17 F HIS 18 n 18 HIS 18 F THR 19 n 19 THR 19 F LEU 20 n 20 LEU 20 F ASN 21 n 21 ASN 21 F ASP 22 n 22 ASP 22 F LYS 23 n 23 LYS 23 F ILE 24 n 24 ILE 24 F PHE 25 n 25 PHE 25 F SER 26 n 26 SER 26 F TYR 27 n 27 TYR 27 F THR 28 n 28 THR 28 F GLU 29 n 29 GLU 29 F SER 30 n 30 SER 30 F LEU 31 n 31 LEU 31 F ALA 32 n 32 ALA 32 F ASP 33 n 33 ASP 33 F LYS 34 n 34 LYS 34 F ARG 35 n 35 ARG 35 F GLU 36 n 36 GLU 36 F MET 37 n 37 MET 37 F ALA 38 n 38 ALA 38 F ILE 39 n 39 ILE 39 F ILE 40 n 40 ILE 40 F THR 41 n 41 THR 41 F PHE 42 n 42 PHE 42 F LYS 43 n 43 LYS 43 F ASN 44 n 44 ASN 44 F GLY 45 n 45 GLY 45 F ALA 46 n 46 ALA 46 F THR 47 n 47 THR 47 F PHE 48 n 48 PHE 48 F GLN 49 n 49 GLN 49 F VAL 50 n 50 VAL 50 F GLU 51 n 51 GLU 51 F VAL 52 n 52 VAL 52 F PRO 53 n 53 PRO 53 F GLY 54 n 54 GLY 54 F SER 55 n 55 SER 55 F GLN 56 n 56 GLN 56 F HIS 57 n 57 HIS 57 F ILE 58 n 58 ILE 58 F ASP 59 n 59 ASP 59 F SER 60 n 60 SER 60 F GLN 61 n 61 GLN 61 F LYS 62 n 62 LYS 62 F LYS 63 n 63 LYS 63 F ALA 64 n 64 ALA 64 F ILE 65 n 65 ILE 65 F GLU 66 n 66 GLU 66 F ARG 67 n 67 ARG 67 F MET 68 n 68 MET 68 F LYS 69 n 69 LYS 69 F ASP 70 n 70 ASP 70 F THR 71 n 71 THR 71 F LEU 72 n 72 LEU 72 F ARG 73 n 73 ARG 73 F ILE 74 n 74 ILE 74 F ALA 75 n 75 ALA 75 F TYR 76 n 76 TYR 76 F LEU 77 n 77 LEU 77 F THR 78 n 78 THR 78 F GLU 79 n 79 GLU 79 F ALA 80 n 80 ALA 80 F LYS 81 n 81 LYS 81 F VAL 82 n 82 VAL 82 F GLU 83 n 83 GLU 83 F LYS 84 n 84 LYS 84 F LEU 85 n 85 LEU 85 F CYS 86 n 86 CYS 86 F VAL 87 n 87 VAL 87 F TRP 88 n 88 TRP 88 F ASN 89 n 89 ASN 89 F ASN 90 n 90 ASN 90 F LYS 91 n 91 LYS 91 F THR 92 n 92 THR 92 F PRO 93 n 93 PRO 93 F HIS 94 n 94 HIS 94 F ALA 95 n 95 ALA 95 F ILE 96 n 96 ILE 96 F ALA 97 n 97 ALA 97 F ALA 98 n 98 ALA 98 F ILE 99 n 99 ILE 99 F SER 100 n 100 SER 100 F MET 101 n 101 MET 101 F ALA 102 n 102 ALA 102 F ASN 103 n 103 ASN 103 F THR 1 n 1 THR 1 G PRO 2 n 2 PRO 2 G GLN 3 n 3 GLN 3 G ASN 4 n 4 ASN 4 G ILE 5 n 5 ILE 5 G THR 6 n 6 THR 6 G ASP 7 n 7 ASP 7 G LEU 8 n 8 LEU 8 G CYS 9 n 9 CYS 9 G ALA 10 n 10 ALA 10 G GLU 11 n 11 GLU 11 G TYR 12 n 12 TYR 12 G HIS 13 n 13 HIS 13 G ASN 14 n 14 ASN 14 G THR 15 n 15 THR 15 G GLN 16 n 16 GLN 16 G ILE 17 n 17 ILE 17 G HIS 18 n 18 HIS 18 G THR 19 n 19 THR 19 G LEU 20 n 20 LEU 20 G ASN 21 n 21 ASN 21 G ASP 22 n 22 ASP 22 G LYS 23 n 23 LYS 23 G ILE 24 n 24 ILE 24 G PHE 25 n 25 PHE 25 G SER 26 n 26 SER 26 G TYR 27 n 27 TYR 27 G THR 28 n 28 THR 28 G GLU 29 n 29 GLU 29 G SER 30 n 30 SER 30 G LEU 31 n 31 LEU 31 G ALA 32 n 32 ALA 32 G ASP 33 n 33 ASP 33 G LYS 34 n 34 LYS 34 G ARG 35 n 35 ARG 35 G GLU 36 n 36 GLU 36 G MET 37 n 37 MET 37 G ALA 38 n 38 ALA 38 G ILE 39 n 39 ILE 39 G ILE 40 n 40 ILE 40 G THR 41 n 41 THR 41 G PHE 42 n 42 PHE 42 G LYS 43 n 43 LYS 43 G ASN 44 n 44 ASN 44 G GLY 45 n 45 GLY 45 G ALA 46 n 46 ALA 46 G THR 47 n 47 THR 47 G PHE 48 n 48 PHE 48 G GLN 49 n 49 GLN 49 G VAL 50 n 50 VAL 50 G GLU 51 n 51 GLU 51 G VAL 52 n 52 VAL 52 G PRO 53 n 53 PRO 53 G GLY 54 n 54 GLY 54 G SER 55 n 55 SER 55 G GLN 56 n 56 GLN 56 G HIS 57 n 57 HIS 57 G ILE 58 n 58 ILE 58 G ASP 59 n 59 ASP 59 G SER 60 n 60 SER 60 G GLN 61 n 61 GLN 61 G LYS 62 n 62 LYS 62 G LYS 63 n 63 LYS 63 G ALA 64 n 64 ALA 64 G ILE 65 n 65 ILE 65 G GLU 66 n 66 GLU 66 G ARG 67 n 67 ARG 67 G MET 68 n 68 MET 68 G LYS 69 n 69 LYS 69 G ASP 70 n 70 ASP 70 G THR 71 n 71 THR 71 G LEU 72 n 72 LEU 72 G ARG 73 n 73 ARG 73 G ILE 74 n 74 ILE 74 G ALA 75 n 75 ALA 75 G TYR 76 n 76 TYR 76 G LEU 77 n 77 LEU 77 G THR 78 n 78 THR 78 G GLU 79 n 79 GLU 79 G ALA 80 n 80 ALA 80 G LYS 81 n 81 LYS 81 G VAL 82 n 82 VAL 82 G GLU 83 n 83 GLU 83 G LYS 84 n 84 LYS 84 G LEU 85 n 85 LEU 85 G CYS 86 n 86 CYS 86 G VAL 87 n 87 VAL 87 G TRP 88 n 88 TRP 88 G ASN 89 n 89 ASN 89 G ASN 90 n 90 ASN 90 G LYS 91 n 91 LYS 91 G THR 92 n 92 THR 92 G PRO 93 n 93 PRO 93 G HIS 94 n 94 HIS 94 G ALA 95 n 95 ALA 95 G ILE 96 n 96 ILE 96 G ALA 97 n 97 ALA 97 G ALA 98 n 98 ALA 98 G ILE 99 n 99 ILE 99 G SER 100 n 100 SER 100 G MET 101 n 101 MET 101 G ALA 102 n 102 ALA 102 G ASN 103 n 103 ASN 103 G THR 1 n 1 THR 1 H PRO 2 n 2 PRO 2 H GLN 3 n 3 GLN 3 H ASN 4 n 4 ASN 4 H ILE 5 n 5 ILE 5 H THR 6 n 6 THR 6 H ASP 7 n 7 ASP 7 H LEU 8 n 8 LEU 8 H CYS 9 n 9 CYS 9 H ALA 10 n 10 ALA 10 H GLU 11 n 11 GLU 11 H TYR 12 n 12 TYR 12 H HIS 13 n 13 HIS 13 H ASN 14 n 14 ASN 14 H THR 15 n 15 THR 15 H GLN 16 n 16 GLN 16 H ILE 17 n 17 ILE 17 H HIS 18 n 18 HIS 18 H THR 19 n 19 THR 19 H LEU 20 n 20 LEU 20 H ASN 21 n 21 ASN 21 H ASP 22 n 22 ASP 22 H LYS 23 n 23 LYS 23 H ILE 24 n 24 ILE 24 H PHE 25 n 25 PHE 25 H SER 26 n 26 SER 26 H TYR 27 n 27 TYR 27 H THR 28 n 28 THR 28 H GLU 29 n 29 GLU 29 H SER 30 n 30 SER 30 H LEU 31 n 31 LEU 31 H ALA 32 n 32 ALA 32 H ASP 33 n 33 ASP 33 H LYS 34 n 34 LYS 34 H ARG 35 n 35 ARG 35 H GLU 36 n 36 GLU 36 H MET 37 n 37 MET 37 H ALA 38 n 38 ALA 38 H ILE 39 n 39 ILE 39 H ILE 40 n 40 ILE 40 H THR 41 n 41 THR 41 H PHE 42 n 42 PHE 42 H LYS 43 n 43 LYS 43 H ASN 44 n 44 ASN 44 H GLY 45 n 45 GLY 45 H ALA 46 n 46 ALA 46 H THR 47 n 47 THR 47 H PHE 48 n 48 PHE 48 H GLN 49 n 49 GLN 49 H VAL 50 n 50 VAL 50 H GLU 51 n 51 GLU 51 H VAL 52 n 52 VAL 52 H PRO 53 n 53 PRO 53 H GLY 54 n 54 GLY 54 H SER 55 n 55 SER 55 H GLN 56 n 56 GLN 56 H HIS 57 n 57 HIS 57 H ILE 58 n 58 ILE 58 H ASP 59 n 59 ASP 59 H SER 60 n 60 SER 60 H GLN 61 n 61 GLN 61 H LYS 62 n 62 LYS 62 H LYS 63 n 63 LYS 63 H ALA 64 n 64 ALA 64 H ILE 65 n 65 ILE 65 H GLU 66 n 66 GLU 66 H ARG 67 n 67 ARG 67 H MET 68 n 68 MET 68 H LYS 69 n 69 LYS 69 H ASP 70 n 70 ASP 70 H THR 71 n 71 THR 71 H LEU 72 n 72 LEU 72 H ARG 73 n 73 ARG 73 H ILE 74 n 74 ILE 74 H ALA 75 n 75 ALA 75 H TYR 76 n 76 TYR 76 H LEU 77 n 77 LEU 77 H THR 78 n 78 THR 78 H GLU 79 n 79 GLU 79 H ALA 80 n 80 ALA 80 H LYS 81 n 81 LYS 81 H VAL 82 n 82 VAL 82 H GLU 83 n 83 GLU 83 H LYS 84 n 84 LYS 84 H LEU 85 n 85 LEU 85 H CYS 86 n 86 CYS 86 H VAL 87 n 87 VAL 87 H TRP 88 n 88 TRP 88 H ASN 89 n 89 ASN 89 H ASN 90 n 90 ASN 90 H LYS 91 n 91 LYS 91 H THR 92 n 92 THR 92 H PRO 93 n 93 PRO 93 H HIS 94 n 94 HIS 94 H ALA 95 n 95 ALA 95 H ILE 96 n 96 ILE 96 H ALA 97 n 97 ALA 97 H ALA 98 n 98 ALA 98 H ILE 99 n 99 ILE 99 H SER 100 n 100 SER 100 H MET 101 n 101 MET 101 H ALA 102 n 102 ALA 102 H ASN 103 n 103 ASN 103 H author_and_software_defined_assembly PISA 5 pentameric 12830 -45 20670 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 x,y,z identity operation 0.0000000000 0.0000000000 0.0000000000 1 17.04 2.30 115.30 132.34 F F F CA CB CG LEU LEU LEU 31 31 31 N 1 14.12 2.30 115.30 129.42 G G G CA CB CG LEU LEU LEU 31 31 31 N 1 14.40 2.30 115.30 129.70 H H H CA CB CG LEU LEU LEU 31 31 31 N 1 D LYS 34 69.51 -0.12 1 E LYS 34 58.98 16.90 1 E ARG 35 -141.54 34.63 1 F GLN 56 -69.76 24.19 1 F ILE 58 -69.42 -148.26 1 G LYS 34 74.91 -1.64 1 H ASN 44 -68.51 3.17 1 H SER 55 -81.01 42.23 21.5 0.178 0.178 2.0 12.0 28286 83.3 1 3.0 2.0 12.0 248 4339 1 0 4090 0.011 1.66 1CHP 32710 0.0 0.081 1 2.85 99. data collection XENGEN model building X-PLOR refinement X-PLOR data reduction XENGEN phasing X-PLOR SURPRISING LEADS FOR A CHOLERA TOXIN RECEPTOR BINDING ANTAGONIST; CRYSTALLOGRAPHIC STUDIES OF CTB MUTANTS 1 N N 1 N N 1 N N 1 N N 1 N N 2 N N 3 N N 3 N N 3 N N 3 N N 3 N N CHOLERA TOXIN IS AN AB5 HEXAMER. THE B-PENTAMER OF CHOLERA TOXIN IS RESPONSIBLE FOR RECEPTOR RECOGNITION AND BINDING. D ILE 5 A ILE 5 HELX_P D CYS 9 A CYS 9 1 DA1 5 D ASP 59 A ASP 59 HELX_P D THR 78 A THR 78 1 DA2 20 E ILE 5 B ILE 5 HELX_P E CYS 9 B CYS 9 1 EA1 5 E LYS 62 B LYS 62 HELX_P E THR 78 B THR 78 1 EA2 17 F ILE 5 C ILE 5 HELX_P F CYS 9 C CYS 9 1 FA1 5 F ASP 59 C ASP 59 HELX_P F THR 78 C THR 78 1 FA2 20 G ILE 5 D ILE 5 HELX_P G CYS 9 D CYS 9 1 GA1 5 G GLN 61 D GLN 61 HELX_P G THR 78 D THR 78 1 HA2 18 H ILE 5 E ILE 5 HELX_P H CYS 9 E CYS 9 1 GA1 5 H SER 60 E SER 60 HELX_P H THR 78 E THR 78 1 HA2 19 disulf 2.023 D CYS 9 A SG CYS 9 1_555 D CYS 86 A SG CYS 86 1_555 disulf 2.024 E CYS 9 B SG CYS 9 1_555 E CYS 86 B SG CYS 86 1_555 disulf 2.018 F CYS 9 C SG CYS 9 1_555 F CYS 86 C SG CYS 86 1_555 disulf 2.025 G CYS 9 D SG CYS 9 1_555 G CYS 86 D SG CYS 86 1_555 disulf 2.030 H CYS 9 E SG CYS 9 1_555 H CYS 86 E SG CYS 86 1_555 TOXIN TOXIN D THR 92 A THR 92 1 D PRO 93 A PRO 93 -0.14 E THR 92 B THR 92 1 E PRO 93 B PRO 93 0.31 F THR 92 C THR 92 1 F PRO 93 C PRO 93 -0.05 G THR 92 D THR 92 1 G PRO 93 D PRO 93 -0.22 H THR 92 E THR 92 1 H PRO 93 E PRO 93 -0.85 CHTB_VIBCH UNP 1 1 P01556 MIKLKFGVFFTVLLSSAYAHGTPQNITDLCAEYHNTQIYTLNDKIFSYTESLAGKREMAIITFKNGAIFQVEVPGSQHID SQKKAIERMKDTLRIAYLTEAKVEKLCVWNNKTPHAIAAISMAN 22 124 1CHP 1 103 P01556 D 1 1 103 22 124 1CHP 1 103 P01556 E 1 1 103 22 124 1CHP 1 103 P01556 F 1 1 103 22 124 1CHP 1 103 P01556 G 1 1 103 22 124 1CHP 1 103 P01556 H 1 1 103 1 TYR conflict HIS 18 1CHP D P01556 UNP 39 18 1 GLY engineered mutation ASP 33 1CHP D P01556 UNP 54 33 1 ILE conflict THR 47 1CHP D P01556 UNP 68 47 2 TYR conflict HIS 18 1CHP E P01556 UNP 39 18 2 GLY engineered mutation ASP 33 1CHP E P01556 UNP 54 33 2 ILE conflict THR 47 1CHP E P01556 UNP 68 47 3 TYR conflict HIS 18 1CHP F P01556 UNP 39 18 3 GLY engineered mutation ASP 33 1CHP F P01556 UNP 54 33 3 ILE conflict THR 47 1CHP F P01556 UNP 68 47 4 TYR conflict HIS 18 1CHP G P01556 UNP 39 18 4 GLY engineered mutation ASP 33 1CHP G P01556 UNP 54 33 4 ILE conflict THR 47 1CHP G P01556 UNP 68 47 5 TYR conflict HIS 18 1CHP H P01556 UNP 39 18 5 GLY engineered mutation ASP 33 1CHP H P01556 UNP 54 33 5 ILE conflict THR 47 1CHP H P01556 UNP 68 47 6 6 6 6 6 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel D THR 15 A THR 15 D ASP 22 A ASP 22 D VAL 82 A VAL 82 D TRP 88 A TRP 88 D HIS 94 A HIS 94 D ALA 102 A ALA 102 E SER 26 B SER 26 E SER 30 B SER 30 E MET 37 B MET 37 E THR 41 B THR 41 E THR 47 B THR 47 E VAL 50 B VAL 50 E THR 15 B THR 15 E ASP 22 B ASP 22 E VAL 82 B VAL 82 E TRP 88 B TRP 88 E HIS 94 B HIS 94 E ALA 102 B ALA 102 F SER 26 C SER 26 F SER 30 C SER 30 F MET 37 C MET 37 F THR 41 C THR 41 F THR 47 C THR 47 F VAL 50 C VAL 50 F THR 15 C THR 15 F ASP 22 C ASP 22 F VAL 82 C VAL 82 F TRP 88 C TRP 88 F HIS 94 C HIS 94 F ALA 102 C ALA 102 G SER 26 D SER 26 G SER 30 D SER 30 G MET 37 D MET 37 G THR 41 D THR 41 G THR 47 D THR 47 G VAL 50 D VAL 50 G THR 15 D THR 15 G ASP 22 D ASP 22 G VAL 82 D VAL 82 G TRP 88 D TRP 88 G HIS 94 D HIS 94 G ALA 102 D ALA 102 H SER 26 E SER 26 H SER 30 E SER 30 H MET 37 E MET 37 H THR 41 E THR 41 H THR 47 E THR 47 H VAL 50 E VAL 50 H THR 15 E THR 15 H ASP 22 E ASP 22 H VAL 82 E VAL 82 H TRP 88 E TRP 88 H HIS 94 E HIS 94 H ALA 102 E ALA 102 D SER 26 A SER 26 D SER 30 A SER 30 D MET 37 A MET 37 D THR 41 A THR 41 D THR 47 A THR 47 D VAL 50 A VAL 50 BINDING SITE FOR RESIDUE CL H 249 H CL 249 Software 5 D HIS 13 A HIS 13 5 4_656 H TYR 12 E TYR 12 5 1_555 H HIS 13 E HIS 13 5 1_555 H TRP 88 E TRP 88 5 1_555 H HOH 255 K HOH 5 1_555 5 C 1 2 1