0.017057 0.009848 0.000000 0.000000 0.019696 0.000000 0.000000 0.000000 0.021368 0.000000 0.000000 0.000000 Max, K.E.A. Heinemann, U. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 6 90.000 90.000 120.000 58.627 58.627 46.798 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 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 Mg 2 24.305 MAGNESIUM ION non-polymer 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 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 S C N 76 N C N 77 N O N 78 N C N 79 N C N 80 N C N 81 N O N 82 N N N 83 N O 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 H N 93 N H N 94 N N N 95 S C N 96 N C N 97 N O N 98 N C N 99 N C N 100 N C N 101 N O N 102 N O N 103 N O 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 H N 112 N H N 113 N N N 114 N C N 115 N C 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 N N 124 S C N 125 N C N 126 N O N 127 N C Y 128 N C Y 129 N N Y 130 N C Y 131 N C Y 132 N N N 133 N O 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 H N 143 N H N 144 N O N 145 N H N 146 N H N 147 N N N 148 S C N 149 N C N 150 N O N 151 S C N 152 N C N 153 N C N 154 N C N 155 N O 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 H N 165 N H N 166 N H N 167 N H N 168 N H N 169 N N N 170 S C N 171 N C N 172 N O N 173 N C N 174 N C N 175 N C N 176 N C N 177 N O 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 H N 190 N H N 191 N N N 192 S C N 193 N C N 194 N O N 195 N C N 196 N C N 197 N C N 198 N C N 199 N N N 200 N O 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 H N 210 N H N 211 N H N 212 N H N 213 N H N 214 N H N 215 N H N 216 N N N 217 S C N 218 N C N 219 N O N 220 N C N 221 N C N 222 N S N 223 N C N 224 N O 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 H N 233 N H N 234 N H N 235 N H N 236 N MG N 237 N N N 238 S C N 239 N C N 240 N O N 241 N C Y 242 N C Y 243 N C Y 244 N C Y 245 N C Y 246 N C Y 247 N C N 248 N O N 249 N H N 250 N H N 251 N H N 252 N H N 253 N H 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 N N 261 S C N 262 N C N 263 N O N 264 N C N 265 N C N 266 N C N 267 N O N 268 N H 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 N N 278 S C N 279 N C N 280 N O N 281 N C N 282 N O N 283 N O N 284 N H N 285 N H N 286 N H N 287 N H N 288 N H N 289 N H N 290 N H N 291 N N N 292 S C N 293 N C N 294 N O N 295 R C N 296 N O N 297 N C N 298 N O 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 H N 306 N H N 307 N H N 308 N N N 309 S C N 310 N C N 311 N O N 312 N C Y 313 N C Y 314 N C Y 315 N C Y 316 N N Y 317 N C Y 318 N C Y 319 N C Y 320 N C Y 321 N C N 322 N O 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 H N 330 N H N 331 N H N 332 N H N 333 N H N 334 N H N 335 N N N 336 S C N 337 N C N 338 N O N 339 N C N 340 N C N 341 N C N 342 N O N 343 N H N 344 N H N 345 N H N 346 N H N 347 N H N 348 N H N 349 N H N 350 N H N 351 N H N 352 N H N 353 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 doub 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 sing N 94 N sing N 95 N doub N 96 N sing N 97 N sing N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N sing N 103 N doub 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 sing N 112 N sing N 113 N doub 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 sing N 121 N sing N 122 N doub N 123 N sing N 124 N sing N 125 N sing N 126 N sing Y 127 N sing Y 128 N doub Y 129 N doub N 130 N sing Y 131 N sing N 132 N sing Y 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 sing N 142 N sing N 143 N sing N 144 N sing N 145 N doub 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 sing N 163 N sing N 164 N sing N 165 N sing N 166 N doub 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 sing N 187 N doub 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 sing N 206 N sing N 207 N sing N 208 N sing N 209 N sing N 210 N sing N 211 N doub 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 sing N 225 N sing N 226 N sing N 227 N sing N 228 N sing N 229 N sing N 230 N doub N 231 N sing N 232 N sing N 233 N sing N 234 N sing Y 235 N doub Y 236 N sing Y 237 N sing N 238 N sing Y 239 N doub N 240 N sing Y 241 N doub N 242 N sing Y 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 doub N 254 N sing 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 N 275 N sing N 276 N sing N 277 N sing N 278 N sing N 279 N sing N 280 N sing N 281 N sing N 282 N sing N 283 N doub N 284 N sing N 285 N sing N 286 N sing N 287 N sing N 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 sing N 299 N doub N 300 N sing N 301 N sing N 302 N sing N 303 N sing Y 304 N doub Y 305 N sing Y 306 N sing N 307 N sing Y 308 N doub Y 309 N sing Y 310 N sing N 311 N sing Y 312 N sing Y 313 N doub N 314 N sing Y 315 N doub N 316 N sing Y 317 N sing N 318 N sing N 319 N sing N 320 N sing N 321 N sing N 322 N sing N 323 N sing N 324 N sing N 325 N sing N 326 N sing N 327 N doub N 328 N sing N 329 N sing N 330 N sing N 331 N sing N 332 N sing N 333 N sing N 334 N sing N 335 N sing N 336 N sing N 337 N sing N 338 N sing UK J.Mol.Biol. JMOBAK 0070 0022-2836 369 1087 1097 10.1016/j.jmb.2007.04.016 17481655 Optimized variants of the cold shock protein from in vitro selection: structural basis of their high thermostability. 2007 10.2210/pdb2i5m/pdb pdb_00002i5m 110 1 mirrors CCD 2005-07-18 MAR CCD 165 mm double-crystal monochromator, Si-111 crystal SINGLE WAVELENGTH M x-ray 1 0.9537 1.0 14.2 BESSY 0.9537 SYNCHROTRON BESSY BEAMLINE 14.2 7500.345 Cold shock protein cspB A46K, S48R 1 man polymer 24.305 MAGNESIUM ION 1 syn non-polymer 18.015 water 23 nat water Major cold shock protein no no MLEGKVKWFNSEKGFGFIEVEGQDDVFVHFSAIQGEGFKTLEEGQKVRFEIVEGNRGPQAANVTKEA MLEGKVKWFNSEKGFGFIEVEGQDDVFVHFSAIQGEGFKTLEEGQKVRFEIVEGNRGPQAANVTKEA X 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 Bacillus Escherichia Escherichia coli sample cspB, cspA 1423 Bacillus subtilis 469008 Escherichia coli BL21(DE3) BL21 (DE3) PLASMID pET11 1 3.09 60.26 VAPOR DIFFUSION, SITTING DROP 7.5 reservoir solution: 1.5 M lithium sulfate, 0.1 M TRIS pH 7.5, 15% glycerol for cryoprotection. protein solution: 20 mM TRIS pH 7.5, 50 mM NaCl, 3 mM MgCl2, 17.4 mg/ml protein. crystallization setup: 0.8 microliter protein solution:0.8 microliter reservoir solution, VAPOR DIFFUSION, SITTING DROP, temperature 293.15K 293.15 software database_2 struct_conn struct_ref_seq_dif struct_site chem_comp_atom chem_comp_bond pdbx_initial_refinement_model repository Initial release Version format compliance Advisory Derived calculations Version format compliance Refinement description Database references Derived calculations Data collection Refinement description 1 0 2007-05-22 1 1 2008-05-01 1 2 2011-07-13 1 3 2017-10-18 1 4 2021-10-20 1 5 2023-08-30 _software.name _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_conn.ptnr1_auth_comp_id _struct_conn.ptnr1_auth_seq_id _struct_conn.ptnr1_label_asym_id _struct_conn.ptnr1_label_atom_id _struct_conn.ptnr1_label_comp_id _struct_conn.ptnr1_label_seq_id _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_auth_seq_id _struct_conn.ptnr2_label_asym_id _struct_conn.ptnr2_label_atom_id _struct_conn.ptnr2_label_comp_id _struct_conn.ptnr2_label_seq_id _struct_ref_seq_dif.details _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id RCSB Y RCSB 2006-08-25 REL REL MG MAGNESIUM ION HOH water 1CSP pdb entry 1CSP PDB experimental model MG 24 2 MG MG 68 X HOH 1 3 HOH HOH 69 X HOH 2 3 HOH HOH 70 X HOH 3 3 HOH HOH 71 X HOH 4 3 HOH HOH 72 X HOH 5 3 HOH HOH 73 X HOH 6 3 HOH HOH 74 X HOH 7 3 HOH HOH 75 X HOH 8 3 HOH HOH 76 X HOH 9 3 HOH HOH 77 X HOH 10 3 HOH HOH 78 X HOH 11 3 HOH HOH 79 X HOH 12 3 HOH HOH 80 X HOH 13 3 HOH HOH 81 X HOH 14 3 HOH HOH 82 X HOH 15 3 HOH HOH 83 X HOH 16 3 HOH HOH 84 X HOH 17 3 HOH HOH 85 X HOH 18 3 HOH HOH 86 X HOH 19 3 HOH HOH 87 X HOH 20 3 HOH HOH 88 X HOH 21 3 HOH HOH 89 X HOH 22 3 HOH HOH 90 X HOH 23 3 HOH HOH 91 X 0.419 0.598 0.577 3.000 3.000 8.000 8.000 MET 1 n 1 MET 1 X LEU 2 n 2 LEU 2 X GLU 3 n 3 GLU 3 X GLY 4 n 4 GLY 4 X LYS 5 n 5 LYS 5 X VAL 6 n 6 VAL 6 X LYS 7 n 7 LYS 7 X TRP 8 n 8 TRP 8 X PHE 9 n 9 PHE 9 X ASN 10 n 10 ASN 10 X SER 11 n 11 SER 11 X GLU 12 n 12 GLU 12 X LYS 13 n 13 LYS 13 X GLY 14 n 14 GLY 14 X PHE 15 n 15 PHE 15 X GLY 16 n 16 GLY 16 X PHE 17 n 17 PHE 17 X ILE 18 n 18 ILE 18 X GLU 19 n 19 GLU 19 X VAL 20 n 20 VAL 20 X GLU 21 n 21 GLU 21 X GLY 22 n 22 GLY 22 X GLN 23 n 23 GLN 23 X ASP 24 n 24 ASP 24 X ASP 25 n 25 ASP 25 X VAL 26 n 26 VAL 26 X PHE 27 n 27 PHE 27 X VAL 28 n 28 VAL 28 X HIS 29 n 29 HIS 29 X PHE 30 n 30 PHE 30 X SER 31 n 31 SER 31 X ALA 32 n 32 ALA 32 X ILE 33 n 33 ILE 33 X GLN 34 n 34 GLN 34 X GLY 35 n 35 GLY 35 X GLU 36 n 36 GLU 36 X GLY 37 n 37 GLY 37 X PHE 38 n 38 PHE 38 X LYS 39 n 39 LYS 39 X THR 40 n 40 THR 40 X LEU 41 n 41 LEU 41 X GLU 42 n 42 GLU 42 X GLU 43 n 43 GLU 43 X GLY 44 n 44 GLY 44 X GLN 45 n 45 GLN 45 X LYS 46 n 46 LYS 46 X VAL 47 n 47 VAL 47 X ARG 48 n 48 ARG 48 X PHE 49 n 49 PHE 49 X GLU 50 n 50 GLU 50 X ILE 51 n 51 ILE 51 X VAL 52 n 52 VAL 52 X GLU 53 n 53 GLU 53 X GLY 54 n 54 GLY 54 X ASN 55 n 55 ASN 55 X ARG 56 n 56 ARG 56 X GLY 57 n 57 GLY 57 X PRO 58 n 58 PRO 58 X GLN 59 n 59 GLN 59 X ALA 60 n 60 ALA 60 X ALA 61 n 61 ALA 61 X ASN 62 n 62 ASN 62 X VAL 63 n 63 VAL 63 X THR 64 n 64 THR 64 X LYS 65 n 65 LYS 65 X GLU 66 n 66 GLU 66 X n 67 67 X 5.0602 -0.9044 0.9051 5.0971 -2.6991 11.3731 0.1392 0.2668 -0.1636 -0.6985 -0.0766 -0.1114 0.5213 0.0672 -0.0625 0.1454 0.0897 0.0141 0.0659 -0.0325 0.1615 refined 36.6440 -24.9506 12.3127 X-RAY DIFFRACTION X 1 A 1 X 66 A 66 X-RAY DIFFRACTION 1 ALL author_and_software_defined_assembly PQS 1 monomeric software_defined_assembly PISA 2 dimeric 1270 -33 8320 X ILE 51 A O ILE 51 1_555 X MG 68 B MG MG 1_555 X HOH 73 C O HOH 1_555 130.8 X ILE 51 A O ILE 51 1_555 X MG 68 B MG MG 1_555 X HOH 73 C O HOH 4_646 145.6 X HOH 73 C O HOH 1_555 X MG 68 B MG MG 1_555 X HOH 73 C O HOH 4_646 69.5 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 -0.5000000000 0.8660254038 0.0000000000 0.8660254038 0.5000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 4_646 y+1,x-1,-z+1 crystal symmetry operation 87.9405000000 -50.7724713477 46.7980000000 X O VAL 26 A O VAL 26 X N ILE 18 A N ILE 18 X O GLU 19 A O GLU 19 X N LYS 5 A N LYS 5 X N GLY 4 A N GLY 4 X O VAL 47 A O VAL 47 X N GLU 50 A N GLU 50 X O ALA 61 A O ALA 61 1 X CD LYS 13 A CD LYS 13 1 Y 1 X CE LYS 13 A CE LYS 13 1 Y 1 X NZ LYS 13 A NZ LYS 13 1 Y 1 X ALA 67 A ALA 67 1 Y 1 X ASN 10 -69.95 99.73 33.462 2.080 1.040 0.000 2.080 0.000 -3.120 0.948 0.933 HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS 0.227 0.204 0.205 2.300 19.190 214 4290 4231 5.000 98.624 6.410 0.153 RANDOM LIKELY RESIDUAL 1 Isotropic + TLS refinement THROUGHOUT 0 MOLECULAR REPLACEMENT 0.262 0.197 0.800 0.800 1.400 pdb entry 1CSP MAXIMUM LIKELIHOOD BABINET MODEL WITH MASK 0.197 2.300 19.190 23 545 1 0 521 0.015 0.021 540 0.004 0.020 466 1.617 1.921 722 2.018 3.000 1094 5.867 5.000 65 0.075 0.200 72 0.009 0.020 615 0.006 0.020 114 0.158 0.200 63 0.187 0.200 495 0.083 0.200 335 0.158 0.200 20 0.061 0.200 5 0.275 0.200 29 0.179 0.200 2 0.582 2.000 322 1.066 3.000 514 1.483 4.500 218 2.386 6.000 208 0.223 0.244 2.360 15 288 303 20 97.1 41.593 2.220 20 2I5M 4700 4621 0 0.049 1 26.650 6.7 98.319 0.157 2.22 2.30 7.9 2087 390 1 5.4 83.30 data scaling Wolfgang Kabsch http://www.mpimf-heidelberg.mpg.de/~kabsch/xds/xscale_program.html XSCALE package phasing Jorge Navaza ccp4@dl.ac.uk Fortran_77 http://www.ccp4.ac.uk/main.html AMoRE program refinement Murshudov, G.N. ccp4@dl.ac.uk Fortran_77 http://www.ccp4.ac.uk/main.html REFMAC program data extraction PDB sw-help@rcsb.rutgers.edu April. 3, 2006 C++ http://pdb.rutgers.edu/software/ PDB_EXTRACT package 2.000 data collection MAR345 v. 0.9.31 data reduction XDS VERSION June 2005 Crystal structure of Bacillus subtilis cold shock protein CspB variant A46K S48R 1 N N 2 N N 3 N N X SER 31 A SER 31 HELX_P X ILE 33 A ILE 33 5 1 3 metalc 2.787 X ILE 51 A O ILE 51 1_555 X MG 68 B MG MG 1_555 metalc 2.830 X MG 68 B MG MG 1_555 X HOH 73 C O HOH 1_555 metalc 2.429 X MG 68 B MG MG 1_555 X HOH 73 C O HOH 4_646 GENE REGULATION oligonucleotide/oligosaccharide binding fold, cold shock domain, beta-barrel, DNA binding protein, expression regulator, GENE REGULATION CSPB_BACSU UNP 1 1 P32081 MLEGKVKWFNSEKGFGFIEVEGQDDVFVHFSAIQGEGFKTLEEGQAVSFEIVEGNRGPQAANVTKEA 1 67 2I5M 1 67 P32081 X 1 1 67 1 ALA engineered mutation LYS 46 2I5M X P32081 UNP 46 46 1 SER engineered mutation ARG 48 2I5M X P32081 UNP 48 48 5 anti-parallel anti-parallel anti-parallel anti-parallel X VAL 26 A VAL 26 X HIS 29 A HIS 29 X PHE 15 A PHE 15 X GLU 19 A GLU 19 X LEU 2 A LEU 2 X ASN 10 A ASN 10 X LYS 46 A LYS 46 X GLY 54 A GLY 54 X GLY 57 A GLY 57 X THR 64 A THR 64 BINDING SITE FOR RESIDUE MG X 68 X MG 68 Software 5 X ILE 51 A ILE 51 5 1_555 X ILE 51 A ILE 51 5 4_646 X GLU 53 A GLU 53 5 4_646 X HOH 73 C HOH 5 1_555 X HOH 73 C HOH 5 4_646 154 P 32 2 1