0.021013 0.000000 0.000000 0.000000 0.022698 0.000000 0.000000 0.000000 0.039200 0.00000 0.00000 0.00000 Xiang, Y. Guan, R.J. He, X.L. Wang, C.G. Wang, M. Zhang, Y. Sundberg, E.J. Wang, D.C. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 90.00 90.00 47.589 44.056 25.510 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 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 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 N 1 N N N 2 S C N 3 N C N 4 N O N 5 N C N 6 N O N 7 N H N 8 N H N 9 N H N 10 N H N 11 N H N 12 N H N 13 N H N 14 N N N 15 S C N 16 N C N 17 N O N 18 N C N 19 N C N 20 N C N 21 N N N 22 N C N 23 N N N 24 N N N 25 N O N 26 N H N 27 N H N 28 N H N 29 N H N 30 N H N 31 N H N 32 N H N 33 N H N 34 N H N 35 N H N 36 N H N 37 N H N 38 N H N 39 N H N 40 N H N 41 N N N 42 S C N 43 N C N 44 N O N 45 N C N 46 N C N 47 N O N 48 N N N 49 N O N 50 N H N 51 N H N 52 N H N 53 N H N 54 N H N 55 N H N 56 N H N 57 N H N 58 N N N 59 S C N 60 N C N 61 N O N 62 N C N 63 N C N 64 N O N 65 N O N 66 N O N 67 N H N 68 N H N 69 N H N 70 N H N 71 N H N 72 N H N 73 N H N 74 N N N 75 R C N 76 N C N 77 N O N 78 N C N 79 N S N 80 N O N 81 N H N 82 N H N 83 N H N 84 N H N 85 N H N 86 N H N 87 N H N 88 N N N 89 S C N 90 N C N 91 N O N 92 N C N 93 N C N 94 N C N 95 N O N 96 N N N 97 N O N 98 N H N 99 N H N 100 N H N 101 N H N 102 N H N 103 N H N 104 N H N 105 N H N 106 N H N 107 N H N 108 N N N 109 S C N 110 N C N 111 N O N 112 N C N 113 N C N 114 N C N 115 N O N 116 N O N 117 N O N 118 N H N 119 N H N 120 N H N 121 N H N 122 N H N 123 N H N 124 N H N 125 N H N 126 N H N 127 N N N 128 N C N 129 N C N 130 N O N 131 N O N 132 N H N 133 N H N 134 N H N 135 N H N 136 N H N 137 N N N 138 S C N 139 N C N 140 N O N 141 N C Y 142 N C Y 143 N N Y 144 N C Y 145 N C Y 146 N N N 147 N O N 148 N H N 149 N H N 150 N H N 151 N H N 152 N H N 153 N H N 154 N H N 155 N H N 156 N H N 157 N H N 158 N O N 159 N H N 160 N H N 161 N N N 162 S C N 163 N C N 164 N O N 165 S C N 166 N C N 167 N C N 168 N C N 169 N O N 170 N H N 171 N H N 172 N H N 173 N H N 174 N H N 175 N H N 176 N H N 177 N H N 178 N H N 179 N H N 180 N H N 181 N H N 182 N H N 183 N N N 184 S C N 185 N C N 186 N O N 187 N C N 188 N C N 189 N C N 190 N C N 191 N O N 192 N H N 193 N H N 194 N H N 195 N H N 196 N H N 197 N H N 198 N H N 199 N H N 200 N H N 201 N H N 202 N H N 203 N H N 204 N H N 205 N N N 206 S C N 207 N C N 208 N O N 209 N C N 210 N C N 211 N C N 212 N C N 213 N N N 214 N O N 215 N H N 216 N H N 217 N H N 218 N H N 219 N H N 220 N H N 221 N H N 222 N H N 223 N H N 224 N H N 225 N H N 226 N H N 227 N H N 228 N H N 229 N H N 230 N N N 231 S C N 232 N C N 233 N O N 234 N C N 235 N C N 236 N C N 237 N O N 238 N H N 239 N H N 240 N H N 241 N H N 242 N H N 243 N H N 244 N H N 245 N H N 246 N H N 247 N N N 248 S C N 249 N C N 250 N O N 251 N C N 252 N O N 253 N O N 254 N H N 255 N H N 256 N H N 257 N H N 258 N H N 259 N H N 260 N H N 261 N N N 262 S C N 263 N C N 264 N O N 265 R C N 266 N O N 267 N C N 268 N O N 269 N H N 270 N H N 271 N H N 272 N H N 273 N H N 274 N H N 275 N H N 276 N H N 277 N H N 278 N N N 279 S C N 280 N C N 281 N O N 282 N C Y 283 N C Y 284 N C Y 285 N C Y 286 N N Y 287 N C Y 288 N C Y 289 N C Y 290 N C Y 291 N C N 292 N O N 293 N H N 294 N H N 295 N H N 296 N H N 297 N H N 298 N H N 299 N H N 300 N H N 301 N H N 302 N H N 303 N H N 304 N H N 305 N N N 306 S C N 307 N C N 308 N O N 309 N C Y 310 N C Y 311 N C Y 312 N C Y 313 N C Y 314 N C Y 315 N C N 316 N O N 317 N O N 318 N H N 319 N H N 320 N H N 321 N H N 322 N H N 323 N H N 324 N H N 325 N H N 326 N H N 327 N H N 328 N H N 329 N N N 330 S C N 331 N C N 332 N O N 333 N C N 334 N C N 335 N C N 336 N O N 337 N H N 338 N H N 339 N H N 340 N H N 341 N H N 342 N H N 343 N H N 344 N H N 345 N H N 346 N H N 347 N H N 1 N sing N 2 N sing N 3 N sing N 4 N sing N 5 N sing N 6 N sing N 7 N doub N 8 N sing N 9 N sing N 10 N sing N 11 N sing N 12 N sing N 13 N sing N 14 N sing N 15 N sing N 16 N sing N 17 N sing N 18 N sing N 19 N doub N 20 N sing N 21 N sing N 22 N sing N 23 N sing N 24 N sing N 25 N sing N 26 N sing N 27 N sing N 28 N sing N 29 N sing N 30 N sing N 31 N sing N 32 N sing N 33 N doub N 34 N sing N 35 N sing N 36 N sing N 37 N sing N 38 N sing N 39 N sing N 40 N sing N 41 N sing N 42 N sing N 43 N sing N 44 N sing N 45 N doub N 46 N sing N 47 N sing N 48 N sing N 49 N sing N 50 N doub N 51 N sing N 52 N sing N 53 N sing N 54 N sing N 55 N sing N 56 N sing N 57 N sing N 58 N sing N 59 N sing N 60 N sing N 61 N doub N 62 N sing N 63 N sing N 64 N sing N 65 N sing N 66 N doub N 67 N sing N 68 N sing N 69 N sing N 70 N sing N 71 N sing N 72 N sing N 73 N sing N 74 N sing N 75 N sing N 76 N doub N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N sing N 82 N sing N 83 N sing N 84 N sing N 85 N sing N 86 N sing N 87 N sing N 88 N sing N 89 N doub N 90 N sing N 91 N sing N 92 N sing N 93 N sing N 94 N sing N 95 N sing N 96 N sing N 97 N doub N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N sing N 104 N sing N 105 N sing N 106 N sing N 107 N sing N 108 N doub N 109 N sing N 110 N sing N 111 N sing N 112 N sing N 113 N sing N 114 N sing N 115 N sing N 116 N doub N 117 N sing N 118 N sing N 119 N sing N 120 N sing N 121 N sing N 122 N sing N 123 N sing N 124 N sing N 125 N sing N 126 N doub N 127 N sing N 128 N sing N 129 N sing N 130 N sing N 131 N sing N 132 N sing N 133 N sing N 134 N sing N 135 N doub N 136 N sing N 137 N sing N 138 N sing N 139 N sing Y 140 N sing Y 141 N doub Y 142 N doub N 143 N sing Y 144 N sing N 145 N sing Y 146 N sing N 147 N sing N 148 N sing N 149 N sing N 150 N sing N 151 N sing N 152 N sing N 153 N sing N 154 N sing N 155 N sing N 156 N sing N 157 N sing N 158 N doub N 159 N sing N 160 N sing N 161 N sing N 162 N sing N 163 N sing N 164 N sing N 165 N sing N 166 N sing N 167 N sing N 168 N sing N 169 N sing N 170 N sing N 171 N sing N 172 N sing N 173 N sing N 174 N sing N 175 N sing N 176 N sing N 177 N sing N 178 N sing N 179 N doub N 180 N sing N 181 N sing N 182 N sing N 183 N sing N 184 N sing N 185 N sing N 186 N sing N 187 N sing N 188 N sing N 189 N sing N 190 N sing N 191 N sing N 192 N sing N 193 N sing N 194 N sing N 195 N sing N 196 N sing N 197 N sing N 198 N sing N 199 N sing N 200 N doub N 201 N sing N 202 N sing N 203 N sing N 204 N sing N 205 N sing N 206 N sing N 207 N sing N 208 N sing N 209 N sing N 210 N sing N 211 N sing N 212 N sing N 213 N sing N 214 N sing N 215 N sing N 216 N sing N 217 N sing N 218 N sing N 219 N sing N 220 N sing N 221 N sing N 222 N sing N 223 N sing N 224 N doub N 225 N sing N 226 N sing N 227 N sing N 228 N sing N 229 N sing N 230 N sing N 231 N sing N 232 N sing N 233 N sing N 234 N sing N 235 N sing N 236 N sing N 237 N sing N 238 N sing N 239 N sing N 240 N sing N 241 N doub N 242 N sing N 243 N sing N 244 N sing N 245 N sing N 246 N sing N 247 N sing N 248 N sing N 249 N sing N 250 N sing N 251 N sing N 252 N sing N 253 N sing N 254 N doub N 255 N sing N 256 N sing N 257 N sing N 258 N sing N 259 N sing N 260 N sing N 261 N sing N 262 N sing N 263 N sing N 264 N sing N 265 N sing N 266 N sing N 267 N sing N 268 N sing N 269 N sing N 270 N doub N 271 N sing N 272 N sing N 273 N sing N 274 N sing Y 275 N doub Y 276 N sing Y 277 N sing N 278 N sing Y 279 N doub Y 280 N sing Y 281 N sing N 282 N sing Y 283 N sing Y 284 N doub N 285 N sing Y 286 N doub N 287 N sing Y 288 N sing N 289 N sing N 290 N sing N 291 N sing N 292 N sing N 293 N sing N 294 N sing N 295 N sing N 296 N sing N 297 N sing N 298 N doub N 299 N sing N 300 N sing N 301 N sing N 302 N sing Y 303 N doub Y 304 N sing Y 305 N sing N 306 N sing Y 307 N doub N 308 N sing Y 309 N doub N 310 N sing Y 311 N sing N 312 N sing N 313 N sing N 314 N sing N 315 N sing N 316 N sing N 317 N sing N 318 N sing N 319 N sing N 320 N sing N 321 N sing N 322 N doub N 323 N sing N 324 N sing N 325 N sing N 326 N sing N 327 N sing N 328 N sing N 329 N sing N 330 N sing N 331 N sing N 332 N sing N 333 N sing UK J.Mol.Biol. JMOBAK 0070 0022-2836 341 1189 1204 10.1016/j.jmb.2004.06.067 15321715 Structural Mechanism Governing Cis and Trans Isomeric States and an Intramolecular Switch for Cis/Trans Isomerization of a Non-proline Peptide Bond Observed in Crystal Structures of Scorpion Toxins 2004 UK J.Mol.Biol. JMOBAK 0070 0022-2836 292 125 135 10.1006/jmbi.1999.3036 10493862 Crystal structures of two alpha-like scorpion toxins: non-proline cis peptide bonds and implications for new binding site selectivity on the sodium channel 1999 US Protein Expr.Purif. PEXPEJ 0757 1046-5928 17 358 365 10.1006/prep.1999.1127 10600453 Expression and purification of the BmK M1 neurotoxin from the scorpion Buthus martensii Karsch 1999 UK Toxicon TOXIA6 2043 0041-0101 35 1025 1031 10.1016/S0041-0101(96)00224-3 9248001 The CDNA and genomic DNA sequences of a mammalian neurotoxin from the scorpion Buthus martensii Karsch 1997 10.2210/pdb1t7b/pdb pdb_00001t7b 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 293 1 IMAGE PLATE 2002-10-08 MARRESEARCH SINGLE WAVELENGTH M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE SIEMENS 7435.405 Alpha-like neurotoxin BmK-I K8Q 1 man polymer 18.015 water 50 nat water Bmk M1, BmK I, BmKI, BmK1, BmK-M1, BmKM1 no no NSVRDAYIAQPHNCVYECARNEYCNDLCTKNGAKSGYCQWVGKYGNGCWCIELPDNVPIRVPGKCH NSVRDAYIAQPHNCVYECARNEYCNDLCTKNGAKSGYCQWVGKYGNGCWCIELPDNVPIRVPGKCH A 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 Chinese scorpion Mesobuthus baker's yeast Saccharomyces sample BmK M1 34649 Mesobuthus martensii 4932 Saccharomyces cerevisiae S-78 plasmid PVT 102U-ALPHA 1 1.8 32 VAPOR DIFFUSION, HANGING DROP 6.5 PEG8000, sodium cacodylate, ammonium sulfate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K 293 diffrn_source database_2 struct_ref_seq_dif chem_comp_atom chem_comp_bond pdbx_initial_refinement_model repository Initial release Version format compliance Version format compliance Data collection Database references Data collection Refinement description 1 0 2004-09-07 1 1 2008-04-30 1 2 2011-07-13 1 3 2018-08-08 1 4 2021-11-10 1 5 2023-10-25 _diffrn_source.source _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_ref_seq_dif.details Structure of scorpion neurotoxin BMK M1 the same protein, K8D mutant the same protein, P9S mutant RCSB Y PDBJ 2004-05-09 REL REL HOH water 1SN1 PDB ENTRY 1SN1 PDB experimental model WAT 1 2 HOH HOH 67 A WAT 2 2 HOH HOH 68 A WAT 3 2 HOH HOH 69 A WAT 4 2 HOH HOH 70 A WAT 5 2 HOH HOH 71 A WAT 6 2 HOH HOH 72 A WAT 7 2 HOH HOH 73 A WAT 8 2 HOH HOH 74 A WAT 9 2 HOH HOH 75 A WAT 10 2 HOH HOH 76 A WAT 11 2 HOH HOH 77 A WAT 12 2 HOH HOH 78 A WAT 13 2 HOH HOH 79 A WAT 14 2 HOH HOH 80 A WAT 15 2 HOH HOH 81 A WAT 16 2 HOH HOH 82 A WAT 17 2 HOH HOH 83 A WAT 18 2 HOH HOH 84 A WAT 19 2 HOH HOH 85 A WAT 20 2 HOH HOH 86 A WAT 21 2 HOH HOH 87 A WAT 22 2 HOH HOH 88 A WAT 23 2 HOH HOH 89 A WAT 24 2 HOH HOH 90 A WAT 25 2 HOH HOH 91 A WAT 26 2 HOH HOH 92 A WAT 27 2 HOH HOH 93 A WAT 28 2 HOH HOH 94 A WAT 29 2 HOH HOH 95 A WAT 30 2 HOH HOH 96 A WAT 31 2 HOH HOH 97 A WAT 32 2 HOH HOH 98 A WAT 33 2 HOH HOH 99 A WAT 34 2 HOH HOH 100 A WAT 35 2 HOH HOH 101 A WAT 36 2 HOH HOH 102 A WAT 37 2 HOH HOH 103 A WAT 38 2 HOH HOH 104 A WAT 39 2 HOH HOH 105 A WAT 40 2 HOH HOH 106 A WAT 41 2 HOH HOH 107 A WAT 42 2 HOH HOH 108 A WAT 43 2 HOH HOH 109 A WAT 44 2 HOH HOH 110 A WAT 45 2 HOH HOH 111 A WAT 46 2 HOH HOH 112 A WAT 47 2 HOH HOH 113 A WAT 48 2 HOH HOH 114 A WAT 49 2 HOH HOH 115 A WAT 50 2 HOH HOH 116 A ASN 65 n 1 ASN 65 A SER 66 n 2 SER 66 A VAL 1 n 3 VAL 1 A ARG 2 n 4 ARG 2 A ASP 3 n 5 ASP 3 A ALA 4 n 6 ALA 4 A TYR 5 n 7 TYR 5 A ILE 6 n 8 ILE 6 A ALA 7 n 9 ALA 7 A GLN 8 n 10 GLN 8 A PRO 9 n 11 PRO 9 A HIS 10 n 12 HIS 10 A ASN 11 n 13 ASN 11 A CYS 12 n 14 CYS 12 A VAL 13 n 15 VAL 13 A TYR 14 n 16 TYR 14 A GLU 15 n 17 GLU 15 A CYS 16 n 18 CYS 16 A ALA 17 n 19 ALA 17 A ARG 18 n 20 ARG 18 A ASN 19 n 21 ASN 19 A GLU 20 n 22 GLU 20 A TYR 21 n 23 TYR 21 A CYS 22 n 24 CYS 22 A ASN 23 n 25 ASN 23 A ASP 24 n 26 ASP 24 A LEU 25 n 27 LEU 25 A CYS 26 n 28 CYS 26 A THR 27 n 29 THR 27 A LYS 28 n 30 LYS 28 A ASN 29 n 31 ASN 29 A GLY 30 n 32 GLY 30 A ALA 31 n 33 ALA 31 A LYS 32 n 34 LYS 32 A SER 33 n 35 SER 33 A GLY 34 n 36 GLY 34 A TYR 35 n 37 TYR 35 A CYS 36 n 38 CYS 36 A GLN 37 n 39 GLN 37 A TRP 38 n 40 TRP 38 A VAL 39 n 41 VAL 39 A GLY 40 n 42 GLY 40 A LYS 41 n 43 LYS 41 A TYR 42 n 44 TYR 42 A GLY 43 n 45 GLY 43 A ASN 44 n 46 ASN 44 A GLY 45 n 47 GLY 45 A CYS 46 n 48 CYS 46 A TRP 47 n 49 TRP 47 A CYS 48 n 50 CYS 48 A ILE 49 n 51 ILE 49 A GLU 50 n 52 GLU 50 A LEU 51 n 53 LEU 51 A PRO 52 n 54 PRO 52 A ASP 53 n 55 ASP 53 A ASN 54 n 56 ASN 54 A VAL 55 n 57 VAL 55 A PRO 56 n 58 PRO 56 A ILE 57 n 59 ILE 57 A ARG 58 n 60 ARG 58 A VAL 59 n 61 VAL 59 A PRO 60 n 62 PRO 60 A GLY 61 n 63 GLY 61 A LYS 62 n 64 LYS 62 A CYS 63 n 65 CYS 63 A HIS 64 n 66 HIS 64 A author_defined_assembly 1 monomeric 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 A N ALA 4 A N ALA 6 A O CYS 48 A O CYS 50 A O TRP 47 A O TRP 49 A N TYR 35 A N TYR 37 A N GLN 8 A N GLN 10 A O CYS 12 A O CYS 14 1 A SER 33 -170.26 -179.47 PROTEIN_REP.PARAM PROTEIN.TOP WATER_REP.PARAM WATER_REP.TOP 19.0 -2.11 0.00 0.00 1.77 0.00 0.34 0.196 0.010 0.17 0.17 1.85 30 401 4831 4831 8.5 97.6 RANDOM 550329.31 0.000000 1 RESTRAINED THROUGHOUT 0.0 0 MOLECULAR REPLACEMENT PDB ENTRY 1SN1 Engh & Huber FLAT MODEL 32.809 0.331341 0.19 0.17 5.00 0.18 0.15 1.85 30 50 567 0 0 517 0.008 1.5 26.3 1.06 1.35 1.50 2.10 2.00 2.06 2.00 2.98 2.50 649 6 9.5 15.4 1.85 30.0 1T7B 4831 4831 0 0 0.083 0.083 1 22.0 5.8 97.6 0.283 1.85 1.92 6.0 458 0.283 4.7 93.8 refinement CNS 1.1 data reduction DENZO data scaling SCALEPACK phasing CNS Crystal structure of mutant Lys8Gln of scorpion alpha-like neurotoxin BmK M1 from Buthus martensii Karsch 1 N N 2 N N A ARG 18 A ARG 20 HELX_P A ASN 29 A ASN 31 1 1 12 disulf 2.026 A CYS 12 A SG CYS 14 1_555 A CYS 63 A SG CYS 65 1_555 disulf 2.029 A CYS 16 A SG CYS 18 1_555 A CYS 36 A SG CYS 38 1_555 disulf 2.024 A CYS 22 A SG CYS 24 1_555 A CYS 46 A SG CYS 48 1_555 disulf 2.021 A CYS 26 A SG CYS 28 1_555 A CYS 48 A SG CYS 50 1_555 TOXIN BmK M1 Mutant, Scorpion toxin, Buthus martensii Karsch, toxin A PRO 9 A PRO 11 1 A HIS 10 A HIS 12 0.00 SCX1_MESMA UNP 1 20 P45697 VRDAYIAKPHNCVYECARNEYCNDLCTKNGAKSGYCQWVGKYGNGCWCIELPDNVPIRVPGKCH 20 83 1T7B 1 64 P45697 A 1 3 66 1 cloning artifact ASN 65 1T7B A P45697 UNP 1 1 cloning artifact SER 66 1T7B A P45697 UNP 2 1 LYS engineered mutation GLN 8 1T7B A P45697 UNP 27 10 3 2 anti-parallel anti-parallel anti-parallel A VAL 1 A VAL 3 A TYR 5 A TYR 7 A GLY 45 A GLY 47 A PRO 52 A PRO 54 A SER 33 A SER 35 A GLN 37 A GLN 39 A ALA 7 A ALA 9 A GLN 8 A GLN 10 A CYS 12 A CYS 14 A VAL 13 A VAL 15 18 P 21 21 2