0.010732 0.006196 0.000000 0.000000 0.012391 0.000000 0.000000 0.000000 0.013534 0.00000 0.00000 0.00000 GLY A 95 - GLY A 96 OMEGA = 359.57 PEPTIDE BOND DEVIATES SIGNIFICANTLY FROM TRANS CONFORMATION GLY B 95 - GLY B 96 OMEGA = 1.14 PEPTIDE BOND DEVIATES SIGNIFICANTLY FROM TRANS CONFORMATION Yennawar, H.P. Farber, G.K. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 12 90.00 90.00 120.00 93.181 93.185 73.886 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 Ca 2 40.078 CALCIUM ION non-polymer 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 C20 H22 N8 O5 454.439 METHOTREXATE 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 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 CA N 75 N CL N 76 N N N 77 R C N 78 N C N 79 N O N 80 N C N 81 N S N 82 N O 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 N N 91 S C N 92 N C N 93 N O N 94 N C N 95 N C N 96 N C N 97 N O N 98 N N N 99 N O 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 H N 109 N H N 110 N N N 111 S C N 112 N C N 113 N O N 114 N C N 115 N C N 116 N C N 117 N O N 118 N O N 119 N O 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 H N 128 N H N 129 N N N 130 N C N 131 N C N 132 N O 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 N N 140 S C N 141 N C N 142 N O N 143 N C Y 144 N C Y 145 N N Y 146 N C Y 147 N C Y 148 N N N 149 N O 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 H N 159 N H N 160 N O N 161 N H N 162 N H N 163 N N N 164 S C N 165 N C N 166 N O N 167 S C N 168 N C N 169 N C N 170 N C N 171 N O 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 H N 184 N H N 185 N N N 186 S C N 187 N C N 188 N O N 189 N C N 190 N C N 191 N C N 192 N C N 193 N O 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 H N 206 N H N 207 N N N 208 S C N 209 N C N 210 N O N 211 N C N 212 N C N 213 N C N 214 N C N 215 N N N 216 N O 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 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 S N 239 N C N 240 N O 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 H N 250 N H N 251 N H Y 252 N N Y 253 N C N 254 N N Y 255 N N Y 256 N C N 257 N N Y 258 N C Y 259 N N Y 260 N C Y 261 N C Y 262 N N Y 263 N C N 264 N C N 265 N N N 266 N C Y 267 N C Y 268 N C Y 269 N C Y 270 N C Y 271 N C Y 272 N C N 273 N C N 274 N O N 275 N N N 276 S C N 277 N C N 278 N O N 279 N O N 280 N C N 281 N C N 282 N C N 283 N O N 284 N O 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 H N 292 N H 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 H N 306 N H N 307 N N N 308 S C N 309 N C N 310 N O N 311 N C Y 312 N C Y 313 N C Y 314 N C Y 315 N C Y 316 N C Y 317 N C N 318 N O 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 H N 330 N N N 331 S C N 332 N C N 333 N O N 334 N C N 335 N C N 336 N C N 337 N O 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 N N 348 S C N 349 N C N 350 N O N 351 N C N 352 N O N 353 N O N 354 N H N 355 N H N 356 N H N 357 N H N 358 N H N 359 N H N 360 N H N 361 N N N 362 S C N 363 N C N 364 N O N 365 R C N 366 N O N 367 N C N 368 N O N 369 N H N 370 N H N 371 N H N 372 N H N 373 N H N 374 N H N 375 N H N 376 N H N 377 N H N 378 N N N 379 S C N 380 N C N 381 N O N 382 N C Y 383 N C Y 384 N C Y 385 N C Y 386 N N Y 387 N C Y 388 N C Y 389 N C Y 390 N C Y 391 N C N 392 N O N 393 N H N 394 N H N 395 N H N 396 N H N 397 N H N 398 N H N 399 N H N 400 N H N 401 N H N 402 N H N 403 N H N 404 N H N 405 N N N 406 S C N 407 N C N 408 N O N 409 N C Y 410 N C Y 411 N C Y 412 N C Y 413 N C Y 414 N C Y 415 N C N 416 N O N 417 N O N 418 N H N 419 N H N 420 N H N 421 N H N 422 N H N 423 N H N 424 N H N 425 N H N 426 N H N 427 N H N 428 N H N 429 N N N 430 S C N 431 N C N 432 N O N 433 N C N 434 N C N 435 N C N 436 N O N 437 N H N 438 N H N 439 N H N 440 N H N 441 N H N 442 N H N 443 N H N 444 N H N 445 N H N 446 N H N 447 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 Y 237 N doub Y 238 N sing N 239 N sing Y 240 N sing N 241 N sing N 242 N sing Y 243 N doub N 244 N sing Y 245 N sing N 246 N sing N 247 N sing Y 248 N sing Y 249 N doub Y 250 N doub Y 251 N sing N 252 N sing Y 253 N doub N 254 N sing Y 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 Y 264 N doub Y 265 N sing N 266 N sing Y 267 N sing N 268 N sing Y 269 N doub N 270 N sing Y 271 N sing Y 272 N doub N 273 N sing N 274 N sing N 275 N doub 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 doub N 283 N sing 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 doub 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 sing N 300 N doub N 301 N sing N 302 N sing N 303 N sing N 304 N sing Y 305 N doub Y 306 N sing Y 307 N sing N 308 N sing Y 309 N doub N 310 N sing Y 311 N doub N 312 N sing Y 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 sing N 323 N doub 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 N 334 N sing N 335 N sing N 336 N sing N 337 N sing N 338 N sing N 339 N sing N 340 N doub N 341 N sing N 342 N sing N 343 N sing N 344 N sing N 345 N sing N 346 N sing N 347 N sing N 348 N sing N 349 N sing N 350 N sing N 351 N sing N 352 N sing N 353 N doub N 354 N sing N 355 N sing N 356 N sing N 357 N sing N 358 N sing N 359 N sing N 360 N sing N 361 N sing N 362 N sing N 363 N sing N 364 N sing N 365 N sing N 366 N sing N 367 N sing N 368 N sing N 369 N doub N 370 N sing N 371 N sing N 372 N sing N 373 N sing Y 374 N doub Y 375 N sing Y 376 N sing N 377 N sing Y 378 N doub Y 379 N sing Y 380 N sing N 381 N sing Y 382 N sing Y 383 N doub N 384 N sing Y 385 N doub N 386 N sing Y 387 N sing N 388 N sing N 389 N sing N 390 N sing N 391 N sing N 392 N sing N 393 N sing N 394 N sing N 395 N sing N 396 N sing N 397 N doub N 398 N sing N 399 N sing N 400 N sing N 401 N sing Y 402 N doub Y 403 N sing Y 404 N sing N 405 N sing Y 406 N doub N 407 N sing Y 408 N doub N 409 N sing Y 410 N sing N 411 N sing N 412 N sing N 413 N sing N 414 N sing N 415 N sing N 416 N sing N 417 N sing N 418 N sing N 419 N sing N 420 N sing N 421 N doub N 422 N sing N 423 N sing N 424 N sing N 425 N sing N 426 N sing N 427 N sing N 428 N sing N 429 N sing N 430 N sing N 431 N sing N 432 N sing US Protein Sci. PRCIEI 0795 0961-8368 6 1727 1733 9260285 The effect of denaturants on protein structure. 1997 10.2210/pdb1dds/pdb pdb_00001dds 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 DIFFRACTOMETER 1993-12-01 RIGAKU AFC-6R M x-ray 1 1.54 1.0 1.54 18019.340 DIHYDROFOLATE REDUCTASE 1.5.1.3 2 man polymer 35.453 CHLORIDE ION 2 syn non-polymer 454.439 METHOTREXATE 2 syn non-polymer 40.078 CALCIUM ION 1 syn non-polymer 18.015 water 121 nat water no no MISLIAALAVDRVIGMENAMPWNLPADLAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWVKSVDE AIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWESVFSEFHDADAQNSHSYCFEILERR MISLIAALAVDRVIGMENAMPWNLPADLAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWVKSVDE AIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWESVFSEFHDADAQNSHSYCFEILERR A,B 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 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 Escherichia sample 562 Escherichia coli B 2.57 52.10 chem_comp_atom chem_comp_bond database_2 pdbx_database_status struct_conn struct_keywords struct_site repository Initial release Version format compliance Version format compliance Data collection Database references Derived calculations Other Structure summary 1 0 1995-10-15 1 1 2008-03-24 1 2 2011-07-13 1 3 2024-02-07 _database_2.pdbx_DOI _database_2.pdbx_database_accession _pdbx_database_status.process_site _struct_conn.ptnr1_auth_asym_id _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.ptnr1_symmetry _struct_conn.ptnr2_auth_asym_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_conn.ptnr2_symmetry _struct_keywords.text _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id Y BNL 1995-06-29 REL REL CL CHLORIDE ION MTX METHOTREXATE CA CALCIUM ION HOH water CL 202 2 CL CL 202 A MTX 201 3 MTX MTX 201 A CL 203 2 CL CL 203 B CA 204 4 CA CA 204 B MTX 201 3 MTX MTX 201 B HOH 701 5 HOH HOH 701 A HOH 702 5 HOH HOH 702 A HOH 703 5 HOH HOH 703 A HOH 704 5 HOH HOH 704 A HOH 705 5 HOH HOH 705 A HOH 706 5 HOH HOH 706 A HOH 707 5 HOH HOH 707 A HOH 708 5 HOH HOH 708 A HOH 709 5 HOH HOH 709 A HOH 711 5 HOH HOH 711 A HOH 712 5 HOH HOH 712 A HOH 713 5 HOH HOH 713 A HOH 714 5 HOH HOH 714 A HOH 715 5 HOH HOH 715 A HOH 716 5 HOH HOH 716 A HOH 717 5 HOH HOH 717 A HOH 718 5 HOH HOH 718 A HOH 719 5 HOH HOH 719 A HOH 720 5 HOH HOH 720 A HOH 721 5 HOH HOH 721 A HOH 722 5 HOH HOH 722 A HOH 723 5 HOH HOH 723 A HOH 724 5 HOH HOH 724 A HOH 725 5 HOH HOH 725 A HOH 726 5 HOH HOH 726 A HOH 727 5 HOH HOH 727 A HOH 728 5 HOH HOH 728 A HOH 729 5 HOH HOH 729 A HOH 730 5 HOH HOH 730 A HOH 731 5 HOH HOH 731 A HOH 732 5 HOH HOH 732 A HOH 764 5 HOH HOH 764 A HOH 765 5 HOH HOH 765 A HOH 766 5 HOH HOH 766 A HOH 769 5 HOH HOH 769 A HOH 770 5 HOH HOH 770 A HOH 771 5 HOH HOH 771 A HOH 772 5 HOH HOH 772 A HOH 773 5 HOH HOH 773 A HOH 774 5 HOH HOH 774 A HOH 775 5 HOH HOH 775 A HOH 776 5 HOH HOH 776 A HOH 777 5 HOH HOH 777 A HOH 778 5 HOH HOH 778 A HOH 779 5 HOH HOH 779 A HOH 780 5 HOH HOH 780 A HOH 781 5 HOH HOH 781 A HOH 782 5 HOH HOH 782 A HOH 783 5 HOH HOH 783 A HOH 784 5 HOH HOH 784 A HOH 785 5 HOH HOH 785 A HOH 786 5 HOH HOH 786 A HOH 807 5 HOH HOH 807 A HOH 808 5 HOH HOH 808 A HOH 809 5 HOH HOH 809 A HOH 810 5 HOH HOH 810 A HOH 811 5 HOH HOH 811 A HOH 812 5 HOH HOH 812 A HOH 813 5 HOH HOH 813 A HOH 814 5 HOH HOH 814 A HOH 815 5 HOH HOH 815 A HOH 816 5 HOH HOH 816 A HOH 817 5 HOH HOH 817 A HOH 820 5 HOH HOH 820 A HOH 821 5 HOH HOH 821 A HOH 710 5 HOH HOH 710 B HOH 733 5 HOH HOH 733 B HOH 734 5 HOH HOH 734 B HOH 735 5 HOH HOH 735 B HOH 736 5 HOH HOH 736 B HOH 737 5 HOH HOH 737 B HOH 738 5 HOH HOH 738 B HOH 739 5 HOH HOH 739 B HOH 740 5 HOH HOH 740 B HOH 741 5 HOH HOH 741 B HOH 742 5 HOH HOH 742 B HOH 743 5 HOH HOH 743 B HOH 744 5 HOH HOH 744 B HOH 745 5 HOH HOH 745 B HOH 746 5 HOH HOH 746 B HOH 747 5 HOH HOH 747 B HOH 748 5 HOH HOH 748 B HOH 749 5 HOH HOH 749 B HOH 750 5 HOH HOH 750 B HOH 751 5 HOH HOH 751 B HOH 752 5 HOH HOH 752 B HOH 753 5 HOH HOH 753 B HOH 754 5 HOH HOH 754 B HOH 755 5 HOH HOH 755 B HOH 756 5 HOH HOH 756 B HOH 757 5 HOH HOH 757 B HOH 758 5 HOH HOH 758 B HOH 759 5 HOH HOH 759 B HOH 760 5 HOH HOH 760 B HOH 761 5 HOH HOH 761 B HOH 762 5 HOH HOH 762 B HOH 763 5 HOH HOH 763 B HOH 767 5 HOH HOH 767 B HOH 768 5 HOH HOH 768 B HOH 787 5 HOH HOH 787 B HOH 788 5 HOH HOH 788 B HOH 789 5 HOH HOH 789 B HOH 790 5 HOH HOH 790 B HOH 791 5 HOH HOH 791 B HOH 792 5 HOH HOH 792 B HOH 793 5 HOH HOH 793 B HOH 794 5 HOH HOH 794 B HOH 795 5 HOH HOH 795 B HOH 796 5 HOH HOH 796 B HOH 797 5 HOH HOH 797 B HOH 798 5 HOH HOH 798 B HOH 799 5 HOH HOH 799 B HOH 800 5 HOH HOH 800 B HOH 801 5 HOH HOH 801 B HOH 802 5 HOH HOH 802 B HOH 803 5 HOH HOH 803 B HOH 804 5 HOH HOH 804 B HOH 805 5 HOH HOH 805 B HOH 806 5 HOH HOH 806 B HOH 818 5 HOH HOH 818 B HOH 819 5 HOH HOH 819 B MET 1 n 1 MET 1 A ILE 2 n 2 ILE 2 A SER 3 n 3 SER 3 A LEU 4 n 4 LEU 4 A ILE 5 n 5 ILE 5 A ALA 6 n 6 ALA 6 A ALA 7 n 7 ALA 7 A LEU 8 n 8 LEU 8 A ALA 9 n 9 ALA 9 A VAL 10 n 10 VAL 10 A ASP 11 n 11 ASP 11 A ARG 12 n 12 ARG 12 A VAL 13 n 13 VAL 13 A ILE 14 n 14 ILE 14 A GLY 15 n 15 GLY 15 A MET 16 n 16 MET 16 A GLU 17 n 17 GLU 17 A ASN 18 n 18 ASN 18 A ALA 19 n 19 ALA 19 A MET 20 n 20 MET 20 A PRO 21 n 21 PRO 21 A TRP 22 n 22 TRP 22 A ASN 23 n 23 ASN 23 A LEU 24 n 24 LEU 24 A PRO 25 n 25 PRO 25 A ALA 26 n 26 ALA 26 A ASP 27 n 27 ASP 27 A LEU 28 n 28 LEU 28 A ALA 29 n 29 ALA 29 A TRP 30 n 30 TRP 30 A PHE 31 n 31 PHE 31 A LYS 32 n 32 LYS 32 A ARG 33 n 33 ARG 33 A ASN 34 n 34 ASN 34 A THR 35 n 35 THR 35 A LEU 36 n 36 LEU 36 A ASN 37 n 37 ASN 37 A LYS 38 n 38 LYS 38 A PRO 39 n 39 PRO 39 A VAL 40 n 40 VAL 40 A ILE 41 n 41 ILE 41 A MET 42 n 42 MET 42 A GLY 43 n 43 GLY 43 A ARG 44 n 44 ARG 44 A HIS 45 n 45 HIS 45 A THR 46 n 46 THR 46 A TRP 47 n 47 TRP 47 A GLU 48 n 48 GLU 48 A SER 49 n 49 SER 49 A ILE 50 n 50 ILE 50 A GLY 51 n 51 GLY 51 A ARG 52 n 52 ARG 52 A PRO 53 n 53 PRO 53 A LEU 54 n 54 LEU 54 A PRO 55 n 55 PRO 55 A GLY 56 n 56 GLY 56 A ARG 57 n 57 ARG 57 A LYS 58 n 58 LYS 58 A ASN 59 n 59 ASN 59 A ILE 60 n 60 ILE 60 A ILE 61 n 61 ILE 61 A LEU 62 n 62 LEU 62 A SER 63 n 63 SER 63 A SER 64 n 64 SER 64 A GLN 65 n 65 GLN 65 A PRO 66 n 66 PRO 66 A GLY 67 n 67 GLY 67 A THR 68 n 68 THR 68 A ASP 69 n 69 ASP 69 A ASP 70 n 70 ASP 70 A ARG 71 n 71 ARG 71 A VAL 72 n 72 VAL 72 A THR 73 n 73 THR 73 A TRP 74 n 74 TRP 74 A VAL 75 n 75 VAL 75 A LYS 76 n 76 LYS 76 A SER 77 n 77 SER 77 A VAL 78 n 78 VAL 78 A ASP 79 n 79 ASP 79 A GLU 80 n 80 GLU 80 A ALA 81 n 81 ALA 81 A ILE 82 n 82 ILE 82 A ALA 83 n 83 ALA 83 A ALA 84 n 84 ALA 84 A CYS 85 n 85 CYS 85 A GLY 86 n 86 GLY 86 A ASP 87 n 87 ASP 87 A VAL 88 n 88 VAL 88 A PRO 89 n 89 PRO 89 A GLU 90 n 90 GLU 90 A ILE 91 n 91 ILE 91 A MET 92 n 92 MET 92 A VAL 93 n 93 VAL 93 A ILE 94 n 94 ILE 94 A GLY 95 n 95 GLY 95 A GLY 96 n 96 GLY 96 A GLY 97 n 97 GLY 97 A ARG 98 n 98 ARG 98 A VAL 99 n 99 VAL 99 A TYR 100 n 100 TYR 100 A GLU 101 n 101 GLU 101 A GLN 102 n 102 GLN 102 A PHE 103 n 103 PHE 103 A LEU 104 n 104 LEU 104 A PRO 105 n 105 PRO 105 A LYS 106 n 106 LYS 106 A ALA 107 n 107 ALA 107 A GLN 108 n 108 GLN 108 A LYS 109 n 109 LYS 109 A LEU 110 n 110 LEU 110 A TYR 111 n 111 TYR 111 A LEU 112 n 112 LEU 112 A THR 113 n 113 THR 113 A HIS 114 n 114 HIS 114 A ILE 115 n 115 ILE 115 A ASP 116 n 116 ASP 116 A ALA 117 n 117 ALA 117 A GLU 118 n 118 GLU 118 A VAL 119 n 119 VAL 119 A GLU 120 n 120 GLU 120 A GLY 121 n 121 GLY 121 A ASP 122 n 122 ASP 122 A THR 123 n 123 THR 123 A HIS 124 n 124 HIS 124 A PHE 125 n 125 PHE 125 A PRO 126 n 126 PRO 126 A ASP 127 n 127 ASP 127 A TYR 128 n 128 TYR 128 A GLU 129 n 129 GLU 129 A PRO 130 n 130 PRO 130 A ASP 131 n 131 ASP 131 A ASP 132 n 132 ASP 132 A TRP 133 n 133 TRP 133 A GLU 134 n 134 GLU 134 A SER 135 n 135 SER 135 A VAL 136 n 136 VAL 136 A PHE 137 n 137 PHE 137 A SER 138 n 138 SER 138 A GLU 139 n 139 GLU 139 A PHE 140 n 140 PHE 140 A HIS 141 n 141 HIS 141 A ASP 142 n 142 ASP 142 A ALA 143 n 143 ALA 143 A ASP 144 n 144 ASP 144 A ALA 145 n 145 ALA 145 A GLN 146 n 146 GLN 146 A ASN 147 n 147 ASN 147 A SER 148 n 148 SER 148 A HIS 149 n 149 HIS 149 A SER 150 n 150 SER 150 A TYR 151 n 151 TYR 151 A CYS 152 n 152 CYS 152 A PHE 153 n 153 PHE 153 A GLU 154 n 154 GLU 154 A ILE 155 n 155 ILE 155 A LEU 156 n 156 LEU 156 A GLU 157 n 157 GLU 157 A ARG 158 n 158 ARG 158 A ARG 159 n 159 ARG 159 A MET 1 n 1 MET 1 B ILE 2 n 2 ILE 2 B SER 3 n 3 SER 3 B LEU 4 n 4 LEU 4 B ILE 5 n 5 ILE 5 B ALA 6 n 6 ALA 6 B ALA 7 n 7 ALA 7 B LEU 8 n 8 LEU 8 B ALA 9 n 9 ALA 9 B VAL 10 n 10 VAL 10 B ASP 11 n 11 ASP 11 B ARG 12 n 12 ARG 12 B VAL 13 n 13 VAL 13 B ILE 14 n 14 ILE 14 B GLY 15 n 15 GLY 15 B MET 16 n 16 MET 16 B GLU 17 n 17 GLU 17 B ASN 18 n 18 ASN 18 B ALA 19 n 19 ALA 19 B MET 20 n 20 MET 20 B PRO 21 n 21 PRO 21 B TRP 22 n 22 TRP 22 B ASN 23 n 23 ASN 23 B LEU 24 n 24 LEU 24 B PRO 25 n 25 PRO 25 B ALA 26 n 26 ALA 26 B ASP 27 n 27 ASP 27 B LEU 28 n 28 LEU 28 B ALA 29 n 29 ALA 29 B TRP 30 n 30 TRP 30 B PHE 31 n 31 PHE 31 B LYS 32 n 32 LYS 32 B ARG 33 n 33 ARG 33 B ASN 34 n 34 ASN 34 B THR 35 n 35 THR 35 B LEU 36 n 36 LEU 36 B ASN 37 n 37 ASN 37 B LYS 38 n 38 LYS 38 B PRO 39 n 39 PRO 39 B VAL 40 n 40 VAL 40 B ILE 41 n 41 ILE 41 B MET 42 n 42 MET 42 B GLY 43 n 43 GLY 43 B ARG 44 n 44 ARG 44 B HIS 45 n 45 HIS 45 B THR 46 n 46 THR 46 B TRP 47 n 47 TRP 47 B GLU 48 n 48 GLU 48 B SER 49 n 49 SER 49 B ILE 50 n 50 ILE 50 B GLY 51 n 51 GLY 51 B ARG 52 n 52 ARG 52 B PRO 53 n 53 PRO 53 B LEU 54 n 54 LEU 54 B PRO 55 n 55 PRO 55 B GLY 56 n 56 GLY 56 B ARG 57 n 57 ARG 57 B LYS 58 n 58 LYS 58 B ASN 59 n 59 ASN 59 B ILE 60 n 60 ILE 60 B ILE 61 n 61 ILE 61 B LEU 62 n 62 LEU 62 B SER 63 n 63 SER 63 B SER 64 n 64 SER 64 B GLN 65 n 65 GLN 65 B PRO 66 n 66 PRO 66 B GLY 67 n 67 GLY 67 B THR 68 n 68 THR 68 B ASP 69 n 69 ASP 69 B ASP 70 n 70 ASP 70 B ARG 71 n 71 ARG 71 B VAL 72 n 72 VAL 72 B THR 73 n 73 THR 73 B TRP 74 n 74 TRP 74 B VAL 75 n 75 VAL 75 B LYS 76 n 76 LYS 76 B SER 77 n 77 SER 77 B VAL 78 n 78 VAL 78 B ASP 79 n 79 ASP 79 B GLU 80 n 80 GLU 80 B ALA 81 n 81 ALA 81 B ILE 82 n 82 ILE 82 B ALA 83 n 83 ALA 83 B ALA 84 n 84 ALA 84 B CYS 85 n 85 CYS 85 B GLY 86 n 86 GLY 86 B ASP 87 n 87 ASP 87 B VAL 88 n 88 VAL 88 B PRO 89 n 89 PRO 89 B GLU 90 n 90 GLU 90 B ILE 91 n 91 ILE 91 B MET 92 n 92 MET 92 B VAL 93 n 93 VAL 93 B ILE 94 n 94 ILE 94 B GLY 95 n 95 GLY 95 B GLY 96 n 96 GLY 96 B GLY 97 n 97 GLY 97 B ARG 98 n 98 ARG 98 B VAL 99 n 99 VAL 99 B TYR 100 n 100 TYR 100 B GLU 101 n 101 GLU 101 B GLN 102 n 102 GLN 102 B PHE 103 n 103 PHE 103 B LEU 104 n 104 LEU 104 B PRO 105 n 105 PRO 105 B LYS 106 n 106 LYS 106 B ALA 107 n 107 ALA 107 B GLN 108 n 108 GLN 108 B LYS 109 n 109 LYS 109 B LEU 110 n 110 LEU 110 B TYR 111 n 111 TYR 111 B LEU 112 n 112 LEU 112 B THR 113 n 113 THR 113 B HIS 114 n 114 HIS 114 B ILE 115 n 115 ILE 115 B ASP 116 n 116 ASP 116 B ALA 117 n 117 ALA 117 B GLU 118 n 118 GLU 118 B VAL 119 n 119 VAL 119 B GLU 120 n 120 GLU 120 B GLY 121 n 121 GLY 121 B ASP 122 n 122 ASP 122 B THR 123 n 123 THR 123 B HIS 124 n 124 HIS 124 B PHE 125 n 125 PHE 125 B PRO 126 n 126 PRO 126 B ASP 127 n 127 ASP 127 B TYR 128 n 128 TYR 128 B GLU 129 n 129 GLU 129 B PRO 130 n 130 PRO 130 B ASP 131 n 131 ASP 131 B ASP 132 n 132 ASP 132 B TRP 133 n 133 TRP 133 B GLU 134 n 134 GLU 134 B SER 135 n 135 SER 135 B VAL 136 n 136 VAL 136 B PHE 137 n 137 PHE 137 B SER 138 n 138 SER 138 B GLU 139 n 139 GLU 139 B PHE 140 n 140 PHE 140 B HIS 141 n 141 HIS 141 B ASP 142 n 142 ASP 142 B ALA 143 n 143 ALA 143 B ASP 144 n 144 ASP 144 B ALA 145 n 145 ALA 145 B GLN 146 n 146 GLN 146 B ASN 147 n 147 ASN 147 B SER 148 n 148 SER 148 B HIS 149 n 149 HIS 149 B SER 150 n 150 SER 150 B TYR 151 n 151 TYR 151 B CYS 152 n 152 CYS 152 B PHE 153 n 153 PHE 153 B GLU 154 n 154 GLU 154 B ILE 155 n 155 ILE 155 B LEU 156 n 156 LEU 156 B GLU 157 n 157 GLU 157 B ARG 158 n 158 ARG 158 B ARG 159 n 159 ARG 159 B author_defined_assembly 2 dimeric A ASN 18 A OD1 ASN 18 2_665 B CA 204 F CA CA 1_555 A ASN 18 A ND2 ASN 18 2_665 42.7 A ASN 18 A OD1 ASN 18 2_665 B CA 204 F CA CA 1_555 B ALA 143 B O ALA 143 2_665 91.4 A ASN 18 A ND2 ASN 18 2_665 B CA 204 F CA CA 1_555 B ALA 143 B O ALA 143 2_665 84.8 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 O GLU 134 A O GLU 134 A N GLU 157 A N GLU 157 A O CYS 152 A O CYS 152 A N HIS 114 A N HIS 114 A O LYS 109 A O LYS 109 A N LEU 4 A N LEU 4 A O SER 3 A O SER 3 A N ILE 91 A N ILE 91 A O MET 92 A O MET 92 A N PRO 39 A N PRO 39 A O VAL 40 A O VAL 40 A N LYS 58 A N LYS 58 A O ILE 61 A O ILE 61 A N THR 73 A N THR 73 B O GLU 134 B O GLU 134 B N GLU 157 B N GLU 157 B O CYS 152 B O CYS 152 B N HIS 114 B N HIS 114 B O LYS 109 B O LYS 109 B N LEU 4 B N LEU 4 B O SER 3 B O SER 3 B N ILE 91 B N ILE 91 B O MET 92 B O MET 92 B N ILE 41 B N ILE 41 B O VAL 40 B O VAL 40 B N LYS 58 B N LYS 58 B O ILE 61 B O ILE 61 B N THR 73 B N THR 73 1 A CB PRO 66 A CB PRO 66 1 Y 1 A CG PRO 66 A CG PRO 66 1 Y 1 A CD PRO 66 A CD PRO 66 1 Y 1 A OG1 THR 68 A OG1 THR 68 1 Y 1 A CG2 THR 68 A CG2 THR 68 1 Y 1 A CG LYS 76 A CG LYS 76 1 Y 1 A CD LYS 76 A CD LYS 76 1 Y 1 A CE LYS 76 A CE LYS 76 1 Y 1 A NZ LYS 76 A NZ LYS 76 1 Y 1 A CG LYS 106 A CG LYS 106 1 Y 1 A CD LYS 106 A CD LYS 106 1 Y 1 A CE LYS 106 A CE LYS 106 1 Y 1 A NZ LYS 106 A NZ LYS 106 1 Y 1 A CG GLU 129 A CG GLU 129 1 Y 1 A CD GLU 129 A CD GLU 129 1 Y 1 A OE1 GLU 129 A OE1 GLU 129 1 Y 1 A OE2 GLU 129 A OE2 GLU 129 1 Y 1 A CG ASP 131 A CG ASP 131 1 Y 1 A OD1 ASP 131 A OD1 ASP 131 1 Y 1 A OD2 ASP 131 A OD2 ASP 131 1 Y 1 A CG ARG 159 A CG ARG 159 1 Y 1 A CD ARG 159 A CD ARG 159 1 Y 1 A NE ARG 159 A NE ARG 159 1 Y 1 A CZ ARG 159 A CZ ARG 159 1 Y 1 A NH1 ARG 159 A NH1 ARG 159 1 Y 1 A NH2 ARG 159 A NH2 ARG 159 1 Y 1 B CG GLU 129 B CG GLU 129 1 Y 1 B CD GLU 129 B CD GLU 129 1 Y 1 B OE1 GLU 129 B OE1 GLU 129 1 Y 1 B OE2 GLU 129 B OE2 GLU 129 1 Y 1 B CG ASP 131 B CG ASP 131 1 Y 1 B OD1 ASP 131 B OD1 ASP 131 1 Y 1 B OD2 ASP 131 B OD2 ASP 131 1 Y 1 A CA MTX 201 WRONG HAND 1 B CA MTX 201 WRONG HAND 1 10.13 1.50 119.30 129.43 A A A C N CA GLU PRO PRO 129 130 130 Y 1 10.38 1.50 119.30 129.68 B B B C N CA GLU PRO PRO 129 130 130 Y 1 A MET 16 -105.94 -65.58 1 A GLU 17 -129.99 -55.37 1 A THR 68 -68.47 -81.64 1 A ASP 131 -83.16 36.22 1 A ASP 132 -147.60 -6.99 1 B SER 63 -174.32 140.18 1 B SER 64 -76.76 26.94 1 B ASP 87 -101.27 72.93 1 B PRO 130 -59.73 3.29 13.04 0.200 0.177 0.177 2.2 30.0 10604 51.3 1 2.0 2.2 30.0 121 2693 69 0 2503 0.013 1.920 2.2 30.0 1DDS 22503 0.0 0.072 1 1.0 100.0 model building X-PLOR 3.1 refinement X-PLOR 3.1 data reduction TEXSAN phasing X-PLOR 3.1 MOLECULE: DIHYDROFOLATE REDUCTASE (E.C.1.5.1.3) COMPLEXED WITH METHOTREXATE 1 N N 1 N N 2 N N 3 N N 2 N N 4 N N 3 N N 5 N N 5 N N A VAL 10 A VAL 10 HELX_P A ARG 12 A ARG 12 5 1 3 A PRO 25 A PRO 25 HELX_P A THR 35 A THR 35 1 2 11 A ARG 44 A ARG 44 HELX_P A ILE 50 A ILE 50 1 3 7 A VAL 78 A VAL 78 HELX_P A CYS 85 A CYS 85 1 4 8 A GLY 97 A GLY 97 HELX_P A LYS 106 A LYS 106 1 5 10 A PRO 130 A PRO 130 HELX_P A ASP 132 A ASP 132 5 6 3 B VAL 10 B VAL 10 HELX_P B ARG 12 B ARG 12 5 7 3 B PRO 25 B PRO 25 HELX_P B THR 35 B THR 35 1 8 11 B ARG 44 B ARG 44 HELX_P B ILE 50 B ILE 50 1 9 7 B VAL 78 B VAL 78 HELX_P B CYS 85 B CYS 85 1 10 8 B GLY 97 B GLY 97 HELX_P B LYS 106 B LYS 106 1 11 10 metalc 2.321 A ASN 18 A OD1 ASN 18 2_665 B CA 204 F CA CA 1_555 metalc 3.295 A ASN 18 A ND2 ASN 18 2_665 B CA 204 F CA CA 1_555 metalc 2.354 B ALA 143 B O ALA 143 2_665 B CA 204 F CA CA 1_555 OXIDOREDUCTASE OXIDO-REDUCTASE, OXIDOREDUCTASE A GLY 95 A GLY 95 1 A GLY 96 A GLY 96 -0.43 B GLY 95 B GLY 95 1 B GLY 96 B GLY 96 1.14 DYR_ECOLI UNP 1 1 P0ABQ4 MISLIAALAVDRVIGMENAMPWNLPADLAWFKRNTLNKPVIMGRHTWESIGRPLPGRKNIILSSQPGTDDRVTWVKSVDE AIAACGDVPEIMVIGGGRVYEQFLPKAQKLYLTHIDAEVEGDTHFPDYEPDDWESVFSEFHDADAQNSHSYCFEILERR 1 159 1DDS 1 159 P0ABQ4 A 1 1 159 1 159 1DDS 1 159 P0ABQ4 B 1 1 159 8 8 anti-parallel anti-parallel parallel parallel parallel parallel parallel anti-parallel anti-parallel parallel parallel parallel parallel parallel A TRP 133 A TRP 133 A HIS 141 A HIS 141 A TYR 151 A TYR 151 A ARG 158 A ARG 158 A LYS 109 A LYS 109 A ILE 115 A ILE 115 A ILE 2 A ILE 2 A LEU 8 A LEU 8 A ILE 91 A ILE 91 A GLY 95 A GLY 95 A PRO 39 A PRO 39 A MET 42 A MET 42 A LYS 58 A LYS 58 A LEU 62 A LEU 62 A THR 73 A THR 73 A VAL 75 A VAL 75 B TRP 133 B TRP 133 B HIS 141 B HIS 141 B TYR 151 B TYR 151 B ARG 158 B ARG 158 B LYS 109 B LYS 109 B ILE 115 B ILE 115 B ILE 2 B ILE 2 B LEU 8 B LEU 8 B ILE 91 B ILE 91 B GLY 95 B GLY 95 B PRO 39 B PRO 39 B GLY 43 B GLY 43 B LYS 58 B LYS 58 B LEU 62 B LEU 62 B THR 73 B THR 73 B VAL 75 B VAL 75 BINDING SITE FOR RESIDUE CL A 202 A CL 202 Software 3 BINDING SITE FOR RESIDUE CL B 203 B CL 203 Software 4 BINDING SITE FOR RESIDUE CA B 204 B CA 204 Software 3 BINDING SITE FOR RESIDUE MTX A 201 A MTX 201 Software 12 BINDING SITE FOR RESIDUE MTX B 201 B MTX 201 Software 12 A GLY 43 A GLY 43 3 1_555 A ARG 44 A ARG 44 3 1_555 A HIS 45 A HIS 45 3 1_555 B GLY 43 B GLY 43 4 1_555 B ARG 44 B ARG 44 4 1_555 B HIS 45 B HIS 45 4 1_555 B THR 46 B THR 46 4 1_555 A ASN 18 A ASN 18 3 2_665 B ALA 143 B ALA 143 3 2_665 B ASP 144 B ASP 144 3 2_665 A ILE 5 A ILE 5 12 1_555 A ALA 6 A ALA 6 12 1_555 A ASP 27 A ASP 27 12 1_555 A LEU 28 A LEU 28 12 1_555 A PHE 31 A PHE 31 12 1_555 A LYS 32 A LYS 32 12 1_555 A ILE 50 A ILE 50 12 1_555 A ARG 52 A ARG 52 12 1_555 A ARG 57 A ARG 57 12 1_555 A ILE 94 A ILE 94 12 1_555 A TYR 100 A TYR 100 12 1_555 A THR 113 A THR 113 12 1_555 B ILE 5 B ILE 5 12 1_555 B ALA 6 B ALA 6 12 1_555 B ALA 7 B ALA 7 12 1_555 B ASP 27 B ASP 27 12 1_555 B LEU 28 B LEU 28 12 1_555 B PHE 31 B PHE 31 12 1_555 B ILE 50 B ILE 50 12 1_555 B ARG 52 B ARG 52 12 1_555 B ARG 57 B ARG 57 12 1_555 B ILE 94 B ILE 94 12 1_555 B TYR 100 B TYR 100 12 1_555 B THR 113 B THR 113 12 1_555 169 P 61