1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 Dangi, B. Sarma, S. Yan, C. Banville, D. Guiles, R.D. 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 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 C34 H32 Fe N4 O4 616.487 PROTOPORPHYRIN IX CONTAINING FE HEME non-polymer C6 H10 N3 O2 1 156.162 y HISTIDINE L-peptide linking 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 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 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 C N 124 N C N 125 N C N 126 N C Y 127 N C Y 128 N C Y 129 N C Y 130 N C N 131 N C N 132 N C N 133 N C N 134 N C N 135 N O N 136 N O N 137 N C N 138 N C N 139 N C N 140 N C N 141 N C N 142 N C N 143 N C Y 144 N C Y 145 N C Y 146 N C Y 147 N C N 148 N C N 149 N C N 150 N C N 151 N C N 152 N C N 153 N C N 154 N C N 155 N C N 156 N C N 157 N C N 158 N C N 159 N O N 160 N O Y 161 N N N 162 N N Y 163 N N N 164 N N N 165 N FE N 166 N H N 167 N H N 168 N H N 169 N H 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 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 H 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 N N 199 S C N 200 N C N 201 N O N 202 N C Y 203 N C Y 204 N N Y 205 N C Y 206 N C Y 207 N N N 208 N O 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 H N 217 N H N 218 N H N 219 N N N 220 S C N 221 N C N 222 N O N 223 S C N 224 N C N 225 N C N 226 N C N 227 N O 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 H N 237 N H N 238 N H N 239 N H N 240 N H N 241 N N N 242 S C N 243 N C N 244 N O N 245 N C N 246 N C N 247 N C N 248 N C N 249 N O 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 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 N C N 268 N C N 269 N C N 270 N C N 271 N N N 272 N O 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 H N 281 N H N 282 N H N 283 N H N 284 N H N 285 N H N 286 N H N 287 N H N 288 N N N 289 S C N 290 N C N 291 N O N 292 N C Y 293 N C Y 294 N C Y 295 N C Y 296 N C Y 297 N C Y 298 N C N 299 N O 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 H N 309 N H N 310 N H N 311 N N N 312 S C N 313 N C N 314 N O N 315 N C N 316 N C N 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 N N 329 S C N 330 N C N 331 N O N 332 N C N 333 N O N 334 N O N 335 N H N 336 N H N 337 N H N 338 N H N 339 N H N 340 N H N 341 N H N 342 N N N 343 S C N 344 N C N 345 N O N 346 R C N 347 N O N 348 N C N 349 N O N 350 N H N 351 N H N 352 N H N 353 N H N 354 N H N 355 N H N 356 N H N 357 N H N 358 N H N 359 N N N 360 S C N 361 N C N 362 N O N 363 N C Y 364 N C Y 365 N C Y 366 N C Y 367 N N Y 368 N C Y 369 N C Y 370 N C Y 371 N C Y 372 N C N 373 N O N 374 N H N 375 N H N 376 N H N 377 N H N 378 N H N 379 N H N 380 N H N 381 N H N 382 N H N 383 N H N 384 N H N 385 N H N 386 N N N 387 S C N 388 N C N 389 N O N 390 N C Y 391 N C Y 392 N C Y 393 N C Y 394 N C Y 395 N C Y 396 N C N 397 N O N 398 N O 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 H N 406 N H N 407 N H N 408 N H N 409 N H N 410 N N N 411 S C N 412 N C N 413 N O N 414 N C N 415 N C N 416 N C 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 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 doub N 118 N sing N 119 N sing N 120 N doub N 121 N sing N 122 N sing N 123 N doub N 124 N sing N 125 N doub N 126 N sing N 127 N sing Y 128 N doub Y 129 N sing Y 130 N sing N 131 N sing Y 132 N doub N 133 N sing Y 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 doub N 145 N sing N 146 N sing N 147 N sing N 148 N doub N 149 N sing N 150 N sing N 151 N sing N 152 N doub N 153 N sing N 154 N sing N 155 N sing N 156 N doub N 157 N sing N 158 N sing N 159 N sing Y 160 N sing Y 161 N sing Y 162 N doub N 163 N sing Y 164 N sing N 165 N sing Y 166 N sing N 167 N sing N 168 N sing N 169 N sing N 170 N doub N 171 N sing N 172 N sing N 173 N sing N 174 N sing N 175 N doub N 176 N doub 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 sing N 188 N sing N 189 N sing N 190 N doub 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 doub N 205 N sing N 206 N sing N 207 N sing N 208 N sing Y 209 N sing Y 210 N doub Y 211 N doub N 212 N sing Y 213 N sing N 214 N sing Y 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 doub 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 sing N 242 N sing N 243 N sing N 244 N sing N 245 N sing N 246 N doub 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 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 doub 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 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 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 Y 296 N doub Y 297 N sing Y 298 N sing N 299 N sing Y 300 N doub N 301 N sing Y 302 N doub N 303 N sing Y 304 N sing N 305 N sing N 306 N sing N 307 N sing N 308 N sing N 309 N sing N 310 N sing N 311 N sing N 312 N sing N 313 N sing N 314 N doub 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 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 doub 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 sing N 341 N sing N 342 N sing N 343 N sing N 344 N doub 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 sing 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 doub N 361 N sing N 362 N sing N 363 N sing N 364 N sing Y 365 N doub Y 366 N sing Y 367 N sing N 368 N sing Y 369 N doub Y 370 N sing Y 371 N sing N 372 N sing Y 373 N sing Y 374 N doub N 375 N sing Y 376 N doub N 377 N sing Y 378 N sing N 379 N sing N 380 N sing N 381 N sing N 382 N sing N 383 N sing N 384 N sing N 385 N sing N 386 N sing N 387 N sing N 388 N doub N 389 N sing N 390 N sing N 391 N sing N 392 N sing Y 393 N doub Y 394 N sing Y 395 N sing N 396 N sing Y 397 N doub N 398 N sing Y 399 N doub N 400 N sing Y 401 N sing N 402 N sing N 403 N sing N 404 N sing N 405 N sing N 406 N sing N 407 N sing N 408 N sing N 409 N sing N 410 N sing N 411 N sing N 412 N doub 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 sing N 422 N sing N 423 N sing US Biochemistry BICHAW 0033 0006-2960 37 8289 8302 10.1021/bi9801964 9622481 The origin of differences in the physical properties of the equilibrium forms of cytochrome b5 revealed through high-resolution NMR structures and backbone dynamic analyses. 1998 10.2210/pdb1b5a/pdb pdb_00001b5a 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 HEME AS PROSTHETIC GROUP, WITH H63 AND H39 AS AXIAL LIGANDS 10813.908 FERROCYTOCHROME B5 1 man polymer 616.487 PROTOPORPHYRIN IX CONTAINING FE 1 syn non-polymer no no DKDVKYYTLEEIQKHKDSKSTWVILHHKVYDLTKFLEEHPGGEEVLREQAGGDATENFEDVGHSTDARELSKTYIIGELH PDDRSKIAKPSETL DKDVKYYTLEEIQKHKDSKSTWVILHHKVYDLTKFLEEHPGGEEVLREQAGGDATENFEDVGHSTDARELSKTYIIGELH PDDRSKIAKPSETL 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 n n n n n n n n n n n n n n n n n n n n n n n n n n n n Norway rat sample 10116 Rattus norvegicus 469008 Escherichia coli BL21(DE3) BL21(DE3) PLYSS plasmid PET3C pdbx_database_status pdbx_struct_assembly pdbx_struct_oper_list struct_conf struct_conf_type entity_src_gen pdbx_nmr_details pdbx_nmr_exptl_sample pdbx_nmr_exptl_sample_conditions pdbx_nmr_representative pdbx_nmr_sample_details pdbx_nmr_software pdbx_nmr_spectrometer chem_comp_atom chem_comp_bond database_2 struct_conn struct_site repository Initial release Version format compliance Version format compliance Derived calculations Other Data collection Experimental preparation Source and taxonomy Data collection Database references Derived calculations 1 0 1998-06-17 1 1 2008-03-24 1 2 2011-07-13 1 3 2017-11-29 1 4 2018-08-08 1 5 2024-04-10 _pdbx_database_status.process_site _entity_src_gen.gene_src_genus _entity_src_gen.host_org_genus _entity_src_gen.pdbx_host_org_cell_line _entity_src_gen.pdbx_host_org_ncbi_taxonomy_id _entity_src_gen.pdbx_host_org_scientific_name _entity_src_gen.pdbx_host_org_strain _entity_src_gen.pdbx_host_org_vector_type _pdbx_nmr_exptl_sample_conditions.ionic_strength _pdbx_nmr_exptl_sample_conditions.ionic_strength_units _pdbx_nmr_exptl_sample_conditions.label _pdbx_nmr_exptl_sample_conditions.pH_units _pdbx_nmr_exptl_sample_conditions.pressure _pdbx_nmr_spectrometer.field_strength _pdbx_nmr_spectrometer.manufacturer _pdbx_nmr_spectrometer.model _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_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id Y BNL 1998-04-06 REL HEM PROTOPORPHYRIN IX CONTAINING FE THIS STRUCTURE REPRESENTS THE A CONFORMATION OF THE RAT FERROCYTOCHROME B5. IT IS THE STRUCTURE CLOSEST TO THE AVERAGE AS ANALYZED BY X-PLOR. 200 STRUCTURES WERE CALCULATED USING DIANA 2.1 AND ONE STRUCTURE WAS CHOSEN TO REPRESENT THE FINAL RESULTS. THE STRUCTURE WAS DETERMINED USING 2D AND 3D EXPERIMENTS INCLUDING DISTANCE AND ANGULAR RESTRAINTS FROM HNHA. CLOSEST TO THE AVERAGE STRUCTURE, LOW TARGET FUNCTION 200 1 NOESY DQF-COSY TOCSY N15 3D NOESY-HMQC N15 3D TOCSY-HMQC 3D HCCH-TOCSY HNCO CBCA(CO)NH HSQC HCACO< HNHA [U-13C; U-15N] 100 mM natural abundance 0.5 mM natural abundance 100 mM sample_conditions 7.0 pH ambient 313 K distance geometry 1 closest to the average structure, low target function [U-13C; U-15N] Cytochrome b5, 100 mM phosphate buffer, 0.5 mM TSP, pH 7.0, 90% H2O/10% D2O The sample was reduced by purging with nitrogen prior to addition of sodium dithionite. sample_1 90% H2O/10% D2O solution WUTHRICH refinement DIANA 2.1 WUTHRICH structure calculation DIANA 2.1 refinement X-PLOR data analysis X-PLOR 600 Bruker AMX 500 Varian UNITYPLUS HEM 95 2 HEM HEM 95 A ASP 1 n 1 ASP 1 A LYS 2 n 2 LYS 2 A ASP 3 n 3 ASP 3 A VAL 4 n 4 VAL 4 A LYS 5 n 5 LYS 5 A TYR 6 n 6 TYR 6 A TYR 7 n 7 TYR 7 A THR 8 n 8 THR 8 A LEU 9 n 9 LEU 9 A GLU 10 n 10 GLU 10 A GLU 11 n 11 GLU 11 A ILE 12 n 12 ILE 12 A GLN 13 n 13 GLN 13 A LYS 14 n 14 LYS 14 A HIS 15 n 15 HIS 15 A LYS 16 n 16 LYS 16 A ASP 17 n 17 ASP 17 A SER 18 n 18 SER 18 A LYS 19 n 19 LYS 19 A SER 20 n 20 SER 20 A THR 21 n 21 THR 21 A TRP 22 n 22 TRP 22 A VAL 23 n 23 VAL 23 A ILE 24 n 24 ILE 24 A LEU 25 n 25 LEU 25 A HIS 26 n 26 HIS 26 A HIS 27 n 27 HIS 27 A LYS 28 n 28 LYS 28 A VAL 29 n 29 VAL 29 A TYR 30 n 30 TYR 30 A ASP 31 n 31 ASP 31 A LEU 32 n 32 LEU 32 A THR 33 n 33 THR 33 A LYS 34 n 34 LYS 34 A PHE 35 n 35 PHE 35 A LEU 36 n 36 LEU 36 A GLU 37 n 37 GLU 37 A GLU 38 n 38 GLU 38 A HIS 39 n 39 HIS 39 A PRO 40 n 40 PRO 40 A GLY 41 n 41 GLY 41 A GLY 42 n 42 GLY 42 A GLU 43 n 43 GLU 43 A GLU 44 n 44 GLU 44 A VAL 45 n 45 VAL 45 A LEU 46 n 46 LEU 46 A ARG 47 n 47 ARG 47 A GLU 48 n 48 GLU 48 A GLN 49 n 49 GLN 49 A ALA 50 n 50 ALA 50 A GLY 51 n 51 GLY 51 A GLY 52 n 52 GLY 52 A ASP 53 n 53 ASP 53 A ALA 54 n 54 ALA 54 A THR 55 n 55 THR 55 A GLU 56 n 56 GLU 56 A ASN 57 n 57 ASN 57 A PHE 58 n 58 PHE 58 A GLU 59 n 59 GLU 59 A ASP 60 n 60 ASP 60 A VAL 61 n 61 VAL 61 A GLY 62 n 62 GLY 62 A HIS 63 n 63 HIS 63 A SER 64 n 64 SER 64 A THR 65 n 65 THR 65 A ASP 66 n 66 ASP 66 A ALA 67 n 67 ALA 67 A ARG 68 n 68 ARG 68 A GLU 69 n 69 GLU 69 A LEU 70 n 70 LEU 70 A SER 71 n 71 SER 71 A LYS 72 n 72 LYS 72 A THR 73 n 73 THR 73 A TYR 74 n 74 TYR 74 A ILE 75 n 75 ILE 75 A ILE 76 n 76 ILE 76 A GLY 77 n 77 GLY 77 A GLU 78 n 78 GLU 78 A LEU 79 n 79 LEU 79 A HIS 80 n 80 HIS 80 A PRO 81 n 81 PRO 81 A ASP 82 n 82 ASP 82 A ASP 83 n 83 ASP 83 A ARG 84 n 84 ARG 84 A SER 85 n 85 SER 85 A LYS 86 n 86 LYS 86 A ILE 87 n 87 ILE 87 A ALA 88 n 88 ALA 88 A LYS 89 n 89 LYS 89 A PRO 90 n 90 PRO 90 A SER 91 n 91 SER 91 A GLU 92 n 92 GLU 92 A THR 93 n 93 THR 93 A LEU 94 n 94 LEU 94 A author_defined_assembly 1 monomeric A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NA HEM 1_555 86.8 A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NB HEM 1_555 96.9 A HEM 95 B NA HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NB HEM 1_555 90.8 A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NC HEM 1_555 92.5 A HEM 95 B NA HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NC HEM 1_555 179.2 A HEM 95 B NB HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B NC HEM 1_555 89.8 A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B ND HEM 1_555 82.6 A HEM 95 B NA HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B ND HEM 1_555 89.7 A HEM 95 B NB HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B ND HEM 1_555 179.3 A HEM 95 B NC HEM 1_555 A HEM 95 B FE HEM 1_555 A HEM 95 B ND HEM 1_555 89.7 A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 A HIS 63 A NE2 HIS 63 1_555 161.4 A HEM 95 B NA HEM 1_555 A HEM 95 B FE HEM 1_555 A HIS 63 A NE2 HIS 63 1_555 79.0 A HEM 95 B NB HEM 1_555 A HEM 95 B FE HEM 1_555 A HIS 63 A NE2 HIS 63 1_555 95.3 A HEM 95 B NC HEM 1_555 A HEM 95 B FE HEM 1_555 A HIS 63 A NE2 HIS 63 1_555 101.6 A HEM 95 B ND HEM 1_555 A HEM 95 B FE HEM 1_555 A HIS 63 A NE2 HIS 63 1_555 85.3 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 1_555 identity operation 0.0000000000 0.0000000000 0.0000000000 A O LYS 5 A O LYS 5 A N GLU 78 A N GLU 78 A N LEU 79 A N LEU 79 A O HIS 27 A O HIS 27 A N LEU 32 A N LEU 32 A O THR 21 A O THR 21 A O TRP 22 A O TRP 22 A N GLY 51 A N GLY 51 1 A A O H LEU GLN 9 13 1.56 1 A PRO 40 -74.98 24.61 1 A HIS 63 -36.40 134.01 1 A TYR 74 -82.18 49.18 1 A ILE 76 -135.47 -58.32 1 A ALA 88 -39.42 107.90 1 A LYS 89 -178.99 -59.96 1 A SER 91 54.13 170.47 1 A THR 93 -109.02 -61.39 model building X-PLOR refinement X-PLOR phasing X-PLOR RAT FERROCYTOCHROME B5 A CONFORMATION, NMR, 1 STRUCTURE 1 Y N 2 N N A LEU 9 A LEU 9 HELX_P A ILE 12 A ILE 12 1 I 4 A THR 33 A THR 33 HELX_P A GLU 38 A GLU 38 1 II 6 A GLU 44 A GLU 44 HELX_P A ARG 47 A ARG 47 1 III 4 A ASP 53 A ASP 53 HELX_P A ASP 60 A ASP 60 1 IV 8 A THR 65 A THR 65 HELX_P A SER 71 A SER 71 1 V 7 A PRO 81 A PRO 81 HELX_P A LYS 86 A LYS 86 5 VI 6 metalc 1.939 A HIS 39 A NE2 HIS 39 1_555 A HEM 95 B FE HEM 1_555 metalc 2.059 A HIS 63 A NE2 HIS 63 1_555 A HEM 95 B FE HEM 1_555 ELECTRON TRANSPORT ELECTRON TRANSPORT CYB5_RAT UNP 1 1 P00173 AEQSDKDVKYYTLEEIQKHKDSKSTWVILHHKVYDLTKFLEEHPGGEEVLREQAGGDATENFEDVGHSTDARELSKTYII GELHPDDRSKIAKPSETLITTVESNSSWWTNWVIPAISALVVALMYRLYMAED 5 98 1B5A 1 94 P00173 A 1 1 94 5 parallel anti-parallel anti-parallel parallel A LYS 5 A LYS 5 A TYR 7 A TYR 7 A TYR 74 A TYR 74 A HIS 80 A HIS 80 A HIS 27 A HIS 27 A LEU 32 A LEU 32 A THR 21 A THR 21 A LEU 25 A LEU 25 A GLY 51 A GLY 51 A ALA 54 A ALA 54 BINDING SITE FOR RESIDUE HEM A 95 A HEM 95 Software 13 A VAL 23 A VAL 23 13 1_555 A LEU 32 A LEU 32 13 1_555 A PHE 35 A PHE 35 13 1_555 A HIS 39 A HIS 39 13 1_555 A PRO 40 A PRO 40 13 1_555 A VAL 45 A VAL 45 13 1_555 A LEU 46 A LEU 46 13 1_555 A GLN 49 A GLN 49 13 1_555 A VAL 61 A VAL 61 13 1_555 A HIS 63 A HIS 63 13 1_555 A SER 64 A SER 64 13 1_555 A ASP 66 A ASP 66 13 1_555 A LEU 70 A LEU 70 13 1_555 1 P 1