1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Klenk, K.C. Tenenholz, T.C. Matteson, D.R. Rogowski, R.S. Blaustein, M.P. Weber, D.J. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 1 90.00 90.00 90.00 1.000 1.000 1.000 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 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 C6 H13 N O2 131.173 y ISOLEUCINE 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 C9 H11 N O3 181.189 y TYROSINE 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 R C N 60 N C N 61 N O N 62 N C N 63 N S N 64 N O N 65 N H N 66 N H N 67 N H N 68 N H N 69 N H N 70 N H N 71 N H N 72 N N N 73 S C N 74 N C N 75 N O N 76 N C N 77 N C N 78 N C N 79 N O N 80 N N N 81 N O 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 H N 89 N H N 90 N H N 91 N H N 92 N N N 93 S C N 94 N C N 95 N O N 96 N C N 97 N C N 98 N C N 99 N O N 100 N O N 101 N O 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 H N 109 N H N 110 N H N 111 N N N 112 N C N 113 N C N 114 N O N 115 N O N 116 N H N 117 N H N 118 N H N 119 N H N 120 N H N 121 N N N 122 S C N 123 N C N 124 N O N 125 N C Y 126 N C Y 127 N N Y 128 N C Y 129 N C Y 130 N N 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 H N 138 N H N 139 N H N 140 N H N 141 N H N 142 N N N 143 S C N 144 N C N 145 N O N 146 S C N 147 N C N 148 N C N 149 N C N 150 N O 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 H N 159 N H N 160 N H N 161 N H N 162 N H N 163 N H N 164 N N N 165 S C N 166 N C N 167 N O N 168 N C N 169 N C N 170 N C N 171 N C N 172 N N N 173 N O 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 H N 184 N H N 185 N H N 186 N H N 187 N H N 188 N H N 189 N N N 190 S C N 191 N C N 192 N O N 193 N C N 194 N C N 195 N S N 196 N C N 197 N O 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 H N 206 N H N 207 N H N 208 N H N 209 N N N 210 S C N 211 N C N 212 N O N 213 N C Y 214 N C Y 215 N C Y 216 N C Y 217 N C Y 218 N C Y 219 N C N 220 N O 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 H N 231 N H N 232 N N N 233 S C N 234 N C N 235 N O N 236 N C N 237 N C N 238 N C N 239 N O 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 H N 248 N H N 249 N N N 250 S C N 251 N C N 252 N O N 253 N C N 254 N O N 255 N O N 256 N H N 257 N H N 258 N H N 259 N H N 260 N H N 261 N H N 262 N H N 263 N N N 264 S C N 265 N C N 266 N O N 267 R C N 268 N O N 269 N C N 270 N O 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 H N 279 N H N 280 N N N 281 S C N 282 N C N 283 N O N 284 N C Y 285 N C Y 286 N C Y 287 N C Y 288 N C Y 289 N C Y 290 N C N 291 N O 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 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 sing 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 doub N 75 N sing N 76 N sing N 77 N sing N 78 N sing N 79 N sing N 80 N sing N 81 N sing N 82 N doub 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 sing N 90 N sing N 91 N sing N 92 N sing N 93 N doub N 94 N sing N 95 N sing N 96 N sing N 97 N sing N 98 N sing N 99 N sing N 100 N sing N 101 N doub 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 sing N 109 N sing N 110 N sing N 111 N doub N 112 N sing N 113 N sing N 114 N sing N 115 N sing N 116 N sing N 117 N sing N 118 N sing N 119 N sing N 120 N doub N 121 N sing N 122 N sing N 123 N sing N 124 N sing Y 125 N sing Y 126 N doub Y 127 N doub N 128 N sing Y 129 N sing N 130 N sing Y 131 N sing N 132 N sing N 133 N sing N 134 N sing N 135 N sing N 136 N sing N 137 N sing N 138 N sing N 139 N sing N 140 N sing N 141 N doub N 142 N sing N 143 N sing N 144 N sing N 145 N sing N 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 sing N 159 N sing N 160 N sing N 161 N sing N 162 N doub 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 sing 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 doub 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 sing N 201 N sing N 202 N sing N 203 N sing N 204 N sing N 205 N doub N 206 N sing N 207 N sing N 208 N sing N 209 N sing Y 210 N doub Y 211 N sing Y 212 N sing N 213 N sing Y 214 N doub N 215 N sing Y 216 N doub N 217 N sing Y 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 sing N 225 N sing N 226 N sing N 227 N sing N 228 N doub 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 sing N 242 N sing N 243 N sing N 244 N sing N 245 N doub 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 sing N 255 N sing N 256 N sing N 257 N sing N 258 N doub 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 sing N 271 N sing N 272 N sing N 273 N sing N 274 N doub N 275 N sing N 276 N sing N 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 doub N 284 N sing Y 285 N doub N 286 N sing Y 287 N sing N 288 N sing N 289 N sing N 290 N sing N 291 N sing US Proteins PSFGEY 0867 0887-3585 38 441 449 10.1002/(SICI)1097-0134(20000301)38:4<441::AID-PROT9>3.3.CO;2-C 10707030 Structural and functional differences of two toxins from the scorpion Pandinus imperator. 2000 US Mol.Pharmacol. MOPMA3 0197 0026-895X 50 1167 Three New Toxins from the Scorpion Pandinus Imperator Selectively Block Certain Voltage-Gated K+ Channels 1996 10.2210/pdb1c49/pdb pdb_00001c49 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 4080.824 TOXIN K-BETA COMPLETE PEPTIDE 1 man polymer PITX-KB, ALPHA-KTX5.2 no no TISCTNEKQCYPHCKKETGYPNAKCMNRKCKCFGR TISCTNEKQCYPHCKKETGYPNAKCMNRKCKCFGR 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 emperor scorpion Pandinus VENOM Escherichia Escherichia coli sample 55084 Pandinus imperator 469008 Escherichia coli BL21(DE3) BL21 (DE3) PLASMID PSR9 database_2 pdbx_struct_assembly pdbx_struct_oper_list chem_comp_atom chem_comp_bond repository Initial release Version format compliance Version format compliance Database references Derived calculations Data collection 1 0 2000-03-22 1 1 2008-04-26 1 2 2011-07-13 1 3 2022-02-16 1 4 2023-12-27 _database_2.pdbx_DOI _database_2.pdbx_database_accession RCSB Y RCSB 1999-08-17 REL REL THE STRUCTURE WAS DETERMINED USING TWO-DIMENSIONAL NMR ON AN UNLABELED SAMPLE OF RECOMBINANT PITX-KB (M). 500 18 NOESY TOCSY DQF-COSY ROESY P.E.COSY 1.44 mM 3.50 1 atm 310.00 K 425 NOE DISTANCE CONSTRAINTS, 22 H-BOND CONSTRAINTS, 11 CHI ANGLE CONSTRAINTS, 26 PHI ANGLE CONSTRAINTS DISTANCE GEOMETRY SIMULATED ANNEALING 10% D2O AND 100%D2O BRUNGER refinement X-PLOR 3.1 BRUNGER structure solution X-PLOR 3.1 600 Bruker DMX THR 4 n 1 THR 4 A ILE 5 n 2 ILE 5 A SER 6 n 3 SER 6 A CYS 7 n 4 CYS 7 A THR 8 n 5 THR 8 A ASN 9 n 6 ASN 9 A GLU 10 n 7 GLU 10 A LYS 11 n 8 LYS 11 A GLN 12 n 9 GLN 12 A CYS 13 n 10 CYS 13 A TYR 14 n 11 TYR 14 A PRO 15 n 12 PRO 15 A HIS 16 n 13 HIS 16 A CYS 17 n 14 CYS 17 A LYS 18 n 15 LYS 18 A LYS 19 n 16 LYS 19 A GLU 20 n 17 GLU 20 A THR 21 n 18 THR 21 A GLY 22 n 19 GLY 22 A TYR 23 n 20 TYR 23 A PRO 24 n 21 PRO 24 A ASN 25 n 22 ASN 25 A ALA 26 n 23 ALA 26 A LYS 27 n 24 LYS 27 A CYS 28 n 25 CYS 28 A MET 29 n 26 MET 29 A ASN 30 n 27 ASN 30 A ARG 31 n 28 ARG 31 A LYS 32 n 29 LYS 32 A CYS 33 n 30 CYS 33 A LYS 34 n 31 LYS 34 A CYS 35 n 32 CYS 35 A PHE 36 n 33 PHE 36 A GLY 37 n 34 GLY 37 A ARG 38 n 35 ARG 38 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 MET 29 A N MET 26 A O LYS 32 A O LYS 29 1 A A SG SG CYS CYS 13 33 2.02 2 A A SG SG CYS CYS 13 33 2.02 3 A A SG SG CYS CYS 13 33 2.02 4 A A SG SG CYS CYS 13 33 2.02 5 A A SG SG CYS CYS 13 33 2.02 6 A A SG SG CYS CYS 13 33 2.02 7 A A SG SG CYS CYS 13 33 2.02 8 A A SG SG CYS CYS 13 33 2.02 9 A A SG SG CYS CYS 13 33 2.02 10 A A SG SG CYS CYS 13 33 2.02 11 A A SG SG CYS CYS 13 33 2.02 12 A A SG SG CYS CYS 13 33 2.02 13 A A SG SG CYS CYS 13 33 2.02 14 A A SG SG CYS CYS 13 33 2.02 15 A A SG SG CYS CYS 13 33 2.02 16 A A SG SG CYS CYS 13 33 2.02 17 A A SG SG CYS CYS 13 33 2.02 18 A A SG SG CYS CYS 13 33 2.02 1 A ARG 31 0.123 SIDE CHAIN 1 A ARG 38 0.260 SIDE CHAIN 2 A ARG 31 0.257 SIDE CHAIN 2 A ARG 38 0.271 SIDE CHAIN 3 A ARG 31 0.262 SIDE CHAIN 3 A ARG 38 0.301 SIDE CHAIN 4 A ARG 31 0.175 SIDE CHAIN 4 A ARG 38 0.215 SIDE CHAIN 5 A ARG 31 0.313 SIDE CHAIN 5 A ARG 38 0.225 SIDE CHAIN 6 A ARG 31 0.241 SIDE CHAIN 6 A ARG 38 0.317 SIDE CHAIN 7 A ARG 31 0.177 SIDE CHAIN 7 A ARG 38 0.318 SIDE CHAIN 8 A ARG 31 0.238 SIDE CHAIN 8 A ARG 38 0.312 SIDE CHAIN 9 A ARG 31 0.279 SIDE CHAIN 9 A ARG 38 0.099 SIDE CHAIN 10 A ARG 31 0.210 SIDE CHAIN 10 A ARG 38 0.203 SIDE CHAIN 11 A ARG 31 0.315 SIDE CHAIN 11 A ARG 38 0.207 SIDE CHAIN 12 A ARG 31 0.274 SIDE CHAIN 12 A ARG 38 0.233 SIDE CHAIN 13 A ARG 31 0.244 SIDE CHAIN 13 A ARG 38 0.243 SIDE CHAIN 14 A ARG 31 0.279 SIDE CHAIN 14 A ARG 38 0.174 SIDE CHAIN 15 A ARG 31 0.317 SIDE CHAIN 15 A ARG 38 0.091 SIDE CHAIN 16 A ARG 31 0.223 SIDE CHAIN 17 A ARG 31 0.195 SIDE CHAIN 17 A ARG 38 0.318 SIDE CHAIN 18 A ARG 31 0.293 SIDE CHAIN 18 A ARG 38 0.317 SIDE CHAIN 1 A ILE 5 -55.95 -163.67 1 A THR 8 -131.49 -59.40 2 A THR 21 -136.01 -45.26 2 A ASN 25 -41.46 107.97 2 A MET 29 -115.09 -165.15 2 A ASN 30 -52.21 90.68 2 A PHE 36 -155.71 46.33 3 A ASN 25 -54.37 103.25 4 A THR 8 -130.36 -37.81 5 A THR 8 -138.66 -39.92 5 A THR 21 -146.07 -40.17 5 A ASN 25 -45.48 109.28 5 A CYS 33 -43.48 152.58 6 A ILE 5 -58.19 -163.00 6 A ASN 25 -52.21 91.42 6 A ASN 30 45.89 70.93 6 A ARG 31 38.98 40.17 6 A PHE 36 -156.04 -36.77 7 A THR 21 -139.53 -36.34 7 A ASN 30 -50.22 93.90 8 A ILE 5 -64.87 -154.27 8 A SER 6 -169.12 98.86 8 A THR 8 -133.12 -50.59 8 A ASN 25 -39.65 94.03 8 A ASN 30 -59.92 98.10 8 A PHE 36 -149.24 -81.30 9 A PHE 36 -151.72 57.83 10 A ILE 5 -67.00 -168.82 10 A THR 8 -140.24 -47.47 10 A ASN 30 38.24 56.24 11 A ILE 5 -62.69 -169.01 11 A THR 21 -150.07 -51.66 11 A ASN 25 -61.41 91.00 11 A ARG 31 43.60 29.77 11 A PHE 36 -81.06 -70.31 12 A SER 6 -106.04 44.37 12 A THR 8 -140.36 14.43 12 A THR 21 -143.60 -60.85 13 A ILE 5 -72.28 -154.01 13 A SER 6 177.90 106.64 13 A PRO 24 -80.58 42.56 14 A THR 8 -140.93 12.83 14 A ASN 25 -62.41 90.25 15 A ILE 5 -69.36 -174.98 15 A THR 21 -148.40 -59.21 16 A THR 21 -148.04 -70.70 16 A MET 29 -100.50 -165.41 16 A ASN 30 -50.41 88.97 17 A ILE 5 -61.08 -156.93 17 A THR 8 -138.96 -50.60 17 A ASN 25 -46.16 103.76 17 A ASN 30 39.11 55.04 18 A THR 8 -143.51 -40.70 18 A THR 21 -133.41 -39.48 18 A ASN 25 -45.51 99.22 18 A PHE 36 -161.51 62.59 STRUCTURAL AND FUNCTIONAL DIFFERENCES OF TWO TOXINS FROM THE SCORPION PANDINUS IMPERATOR 1 N N A ASN 9 A ASN 6 HELX_P A GLN 12 A GLN 9 5 1 4 A CYS 13 A CYS 10 HELX_P A THR 21 A THR 18 1 2 9 disulf 2.021 A CYS 7 A SG CYS 4 1_555 A CYS 28 A SG CYS 25 1_555 disulf 2.019 A CYS 17 A SG CYS 14 1_555 A CYS 35 A SG CYS 32 1_555 TOXIN SCORPION TOXIN, POTASSIUM CHANNELS BLOCKERS, ALPHA-K TOXIN FAMILY, NEUROTOXIN, NMR SOLUTION STRUCTURE, TOXIN SCKB_PANIM UNP 1 P55928 1 35 1C49 4 38 P55928 A 1 1 35 2 anti-parallel A ALA 26 A ALA 23 A MET 29 A MET 26 A LYS 32 A LYS 29 A CYS 35 A CYS 32 1 P 1