0.026795 0.000000 0.008609 0.000000 0.015228 0.000000 0.000000 0.000000 0.017906 0.00000 0.00000 0.00000 Lee, W.C. Reniere, M.L. Skaar, E.P. Murphy, M.E.P. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 107.81 90.00 37.320 65.668 58.660 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 Cl -1 35.453 CHLORIDE ION non-polymer C34 H32 Co N4 O4 619.575 PROTOPORPHYRIN IX CONTAINING CO non-polymer 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 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 CL N 75 N CO N 76 N C N 77 N C N 78 N C N 79 N C N 80 N N N 81 N C N 82 N C N 83 N C N 84 N C N 85 N C N 86 N C N 87 N C N 88 N C N 89 N O N 90 N O N 91 R N N 92 N C N 93 N C N 94 N C N 95 N C N 96 N C N 97 N C N 98 N C N 99 N N N 100 N C N 101 N C N 102 N C N 103 N C N 104 N C N 105 N C N 106 N C Y 107 N N Y 108 N C Y 109 N C Y 110 N C Y 111 N C N 112 N C N 113 N C 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 H N 124 N H N 125 N H N 126 N H N 127 N H N 128 N H N 129 N H N 130 N H N 131 N H 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 H N 143 N H N 144 N H N 145 N H N 146 N H N 147 N H N 148 N H N 149 N H N 150 N N N 151 S C N 152 N C N 153 N O N 154 N C N 155 N C N 156 N C N 157 N O N 158 N N N 159 N O 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 H N 170 N N N 171 S C N 172 N C N 173 N O N 174 N C N 175 N C N 176 N C N 177 N O N 178 N O N 179 N O 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 N C N 191 N C N 192 N O 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 N N 200 S C N 201 N C N 202 N O N 203 N C Y 204 N C Y 205 N N Y 206 N C Y 207 N C Y 208 N N N 209 N O 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 H N 220 N O N 221 N H N 222 N H N 223 N N N 224 S C N 225 N C N 226 N O N 227 S C N 228 N C N 229 N C N 230 N C N 231 N O 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 H N 242 N H N 243 N H N 244 N H N 245 N N N 246 S C N 247 N C N 248 N O N 249 N C N 250 N C N 251 N C N 252 N C 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 H N 262 N H N 263 N H N 264 N H N 265 N H N 266 N H N 267 N N N 268 S C N 269 N C N 270 N O N 271 N C N 272 N C N 273 N C N 274 N C N 275 N N N 276 N O 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 H N 289 N H N 290 N H N 291 N H N 292 N N N 293 S C N 294 N C N 295 N O N 296 N C N 297 N C N 298 N S N 299 N C N 300 N O 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 H N 312 N N N 313 S C N 314 N C N 315 N O N 316 N C Y 317 N C Y 318 N C Y 319 N C Y 320 N C Y 321 N C Y 322 N C N 323 N O 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 N N 353 S C N 354 N C N 355 N O N 356 N C N 357 N O N 358 N O N 359 N H N 360 N H N 361 N H N 362 N H N 363 N H N 364 N H N 365 N H N 366 N N N 367 S C N 368 N C N 369 N O N 370 R C N 371 N O N 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 N N 384 S C N 385 N C N 386 N O N 387 N C Y 388 N C Y 389 N C Y 390 N C Y 391 N N 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 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 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 Y 415 N C Y 416 N C Y 417 N C Y 418 N C Y 419 N C Y 420 N C N 421 N O N 422 N O 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 H N 430 N H N 431 N H N 432 N H N 433 N H N 434 N N N 435 S C N 436 N C N 437 N O N 438 N C N 439 N C N 440 N C N 441 N O 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 448 N H N 449 N H N 450 N H N 451 N H N 452 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 doub N 75 N sing N 76 N sing N 77 N sing N 78 N doub N 79 N sing N 80 N doub N 81 N sing N 82 N sing N 83 N doub N 84 N sing N 85 N sing N 86 N sing N 87 N doub 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 sing N 98 N sing N 99 N sing N 100 N sing N 101 N sing N 102 N doub 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 doub N 116 N sing N 117 N sing N 118 N sing N 119 N doub 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 N 127 N sing N 128 N sing N 129 N doub N 130 N sing N 131 N sing N 132 N sing Y 133 N sing Y 134 N sing Y 135 N doub Y 136 N sing N 137 N sing Y 138 N doub 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 sing N 146 N sing N 147 N sing N 148 N sing N 149 N doub 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 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 doub 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 doub 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 doub 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 sing N 226 N sing N 227 N doub 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 sing N 247 N sing N 248 N doub 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 sing N 268 N sing N 269 N doub 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 sing N 292 N sing N 293 N doub 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 sing N 301 N sing N 302 N sing N 303 N sing N 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 doub N 313 N sing N 314 N sing N 315 N sing N 316 N sing Y 317 N doub Y 318 N sing Y 319 N sing N 320 N sing Y 321 N doub N 322 N sing Y 323 N doub N 324 N sing Y 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 doub 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 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 doub 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 sing N 361 N sing N 362 N sing N 363 N sing N 364 N sing N 365 N doub N 366 N sing N 367 N sing N 368 N sing N 369 N sing N 370 N sing N 371 N sing N 372 N sing N 373 N sing N 374 N sing N 375 N sing N 376 N sing N 377 N sing N 378 N sing N 379 N sing N 380 N sing N 381 N doub N 382 N sing N 383 N sing N 384 N sing N 385 N sing Y 386 N doub Y 387 N sing Y 388 N sing N 389 N sing Y 390 N doub Y 391 N sing Y 392 N sing N 393 N sing Y 394 N sing Y 395 N doub N 396 N sing Y 397 N doub N 398 N sing Y 399 N sing N 400 N sing N 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 doub N 410 N sing N 411 N sing N 412 N sing N 413 N sing Y 414 N doub Y 415 N sing Y 416 N sing N 417 N sing Y 418 N doub N 419 N sing Y 420 N doub N 421 N sing Y 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 N 433 N doub N 434 N sing N 435 N sing N 436 N sing N 437 N sing N 438 N sing N 439 N sing N 440 N sing N 441 N sing N 442 N sing N 443 N sing N 444 N sing US J.Biol.Chem. JBCHA3 0071 0021-9258 283 30957 30963 10.1074/jbc.M709486200 18713745 Ruffling of Metalloporphyrins Bound to IsdG and IsdI, Two Heme-degrading Enzymes in Staphylococcus aureus 2008 10.2210/pdb2zdp/pdb pdb_00002zdp 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 100 1 CCD 2007-05-17 ADSC QUANTUM 315 SINGLE WAVELENGTH M x-ray 1 1 1.0 BL7-1 SSRL 1 SYNCHROTRON SSRL BEAMLINE BL7-1 13015.394 Heme-degrading monooxygenase isdI 1.14.99.3 2 man polymer 35.453 CHLORIDE ION 2 syn non-polymer 619.575 PROTOPORPHYRIN IX CONTAINING CO 2 syn non-polymer 18.015 water 267 nat water Iron-regulated surface determinant isdI, Iron-responsive surface determinant isdI, Heme oxygenase no no AHMFMAENRLQLQKGSAEETIERFYNRQGIETIEGFQQMFVTKTLNTEDTDEVKILTIWESEDSFNNWLNSDVFKEAHKN VRLKSDDDGQQSPILSNKVFKYDIGYHYQK AHMFMAENRLQLQKGSAEETIERFYNRQGIETIEGFQQMFVTKTLNTEDTDEVKILTIWESEDSFNNWLNSDVFKEAHKN VRLKSDDDGQQSPILSNKVFKYDIGYHYQK 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 N315 sample isdI 1280 Staphylococcus aureus 562 Escherichia coli BL21(DE3) plasmid 2.63 53.21 VAPOR DIFFUSION, HANGING DROP 4.5 pH 4.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K 293 chem_comp_atom chem_comp_bond database_2 pdbx_initial_refinement_model pdbx_validate_chiral struct_ref_seq_dif struct_site repository Initial release Version format compliance Data collection Database references Derived calculations Refinement description 1 0 2008-08-19 1 1 2011-07-13 1 2 2023-11-01 _database_2.pdbx_DOI _database_2.pdbx_database_accession _struct_ref_seq_dif.details _struct_site.pdbx_auth_asym_id _struct_site.pdbx_auth_comp_id _struct_site.pdbx_auth_seq_id PDBJ Y PDBJ 2007-11-27 REL REL CL CHLORIDE ION COH PROTOPORPHYRIN IX CONTAINING CO HOH water 1XBW PDB ENTRY 1XBW PDB experimental model CL 201 2 CL CL 201 A COH 200 3 COH COH 200 A CL 202 2 CL CL 202 B COH 200 3 COH COH 200 B HOH 5 4 HOH HOH 202 A HOH 6 4 HOH HOH 203 A HOH 11 4 HOH HOH 204 A HOH 15 4 HOH HOH 205 A HOH 16 4 HOH HOH 206 A HOH 18 4 HOH HOH 207 A HOH 19 4 HOH HOH 208 A HOH 23 4 HOH HOH 209 A HOH 26 4 HOH HOH 210 A HOH 27 4 HOH HOH 211 A HOH 28 4 HOH HOH 212 A HOH 30 4 HOH HOH 213 A HOH 31 4 HOH HOH 214 A HOH 33 4 HOH HOH 215 A HOH 37 4 HOH HOH 216 A HOH 38 4 HOH HOH 217 A HOH 39 4 HOH HOH 218 A HOH 45 4 HOH HOH 219 A HOH 50 4 HOH HOH 220 A HOH 51 4 HOH HOH 221 A HOH 57 4 HOH HOH 222 A HOH 58 4 HOH HOH 223 A HOH 59 4 HOH HOH 224 A HOH 60 4 HOH HOH 225 A HOH 61 4 HOH HOH 226 A HOH 65 4 HOH HOH 227 A HOH 66 4 HOH HOH 228 A HOH 67 4 HOH HOH 229 A HOH 71 4 HOH HOH 230 A HOH 74 4 HOH HOH 231 A HOH 75 4 HOH HOH 232 A HOH 77 4 HOH HOH 233 A HOH 79 4 HOH HOH 234 A HOH 80 4 HOH HOH 235 A HOH 86 4 HOH HOH 236 A HOH 89 4 HOH HOH 237 A HOH 90 4 HOH HOH 238 A HOH 91 4 HOH HOH 239 A HOH 92 4 HOH HOH 240 A HOH 94 4 HOH HOH 241 A HOH 95 4 HOH HOH 242 A HOH 98 4 HOH HOH 243 A HOH 105 4 HOH HOH 244 A HOH 108 4 HOH HOH 245 A HOH 110 4 HOH HOH 246 A HOH 113 4 HOH HOH 247 A HOH 114 4 HOH HOH 248 A HOH 121 4 HOH HOH 249 A HOH 125 4 HOH HOH 250 A HOH 128 4 HOH HOH 251 A HOH 129 4 HOH HOH 252 A HOH 131 4 HOH HOH 253 A HOH 134 4 HOH HOH 254 A HOH 135 4 HOH HOH 255 A HOH 137 4 HOH HOH 256 A HOH 139 4 HOH HOH 257 A HOH 141 4 HOH HOH 258 A HOH 143 4 HOH HOH 259 A HOH 146 4 HOH HOH 260 A HOH 147 4 HOH HOH 261 A HOH 148 4 HOH HOH 262 A HOH 149 4 HOH HOH 263 A HOH 153 4 HOH HOH 264 A HOH 158 4 HOH HOH 265 A HOH 159 4 HOH HOH 266 A HOH 160 4 HOH HOH 267 A HOH 162 4 HOH HOH 268 A HOH 163 4 HOH HOH 269 A HOH 164 4 HOH HOH 270 A HOH 167 4 HOH HOH 271 A HOH 170 4 HOH HOH 272 A HOH 174 4 HOH HOH 273 A HOH 175 4 HOH HOH 274 A HOH 176 4 HOH HOH 275 A HOH 177 4 HOH HOH 276 A HOH 179 4 HOH HOH 277 A HOH 180 4 HOH HOH 278 A HOH 181 4 HOH HOH 279 A HOH 188 4 HOH HOH 280 A HOH 192 4 HOH HOH 281 A HOH 193 4 HOH HOH 282 A HOH 195 4 HOH HOH 283 A HOH 197 4 HOH HOH 284 A HOH 198 4 HOH HOH 285 A HOH 199 4 HOH HOH 286 A HOH 201 4 HOH HOH 287 A HOH 202 4 HOH HOH 288 A HOH 203 4 HOH HOH 289 A HOH 205 4 HOH HOH 290 A HOH 207 4 HOH HOH 291 A HOH 208 4 HOH HOH 292 A HOH 211 4 HOH HOH 293 A HOH 212 4 HOH HOH 294 A HOH 213 4 HOH HOH 295 A HOH 214 4 HOH HOH 296 A HOH 215 4 HOH HOH 297 A HOH 216 4 HOH HOH 298 A HOH 217 4 HOH HOH 299 A HOH 220 4 HOH HOH 300 A HOH 222 4 HOH HOH 301 A HOH 227 4 HOH HOH 302 A HOH 230 4 HOH HOH 303 A HOH 232 4 HOH HOH 304 A HOH 234 4 HOH HOH 305 A HOH 236 4 HOH HOH 306 A HOH 237 4 HOH HOH 307 A HOH 238 4 HOH HOH 308 A HOH 239 4 HOH HOH 309 A HOH 240 4 HOH HOH 310 A HOH 242 4 HOH HOH 311 A HOH 244 4 HOH HOH 312 A HOH 248 4 HOH HOH 313 A HOH 250 4 HOH HOH 314 A HOH 251 4 HOH HOH 315 A HOH 253 4 HOH HOH 316 A HOH 256 4 HOH HOH 317 A HOH 258 4 HOH HOH 318 A HOH 259 4 HOH HOH 319 A HOH 260 4 HOH HOH 320 A HOH 261 4 HOH HOH 321 A HOH 265 4 HOH HOH 322 A HOH 93 4 HOH HOH 323 A HOH 115 4 HOH HOH 324 A HOH 169 4 HOH HOH 325 A HOH 1 4 HOH HOH 203 B HOH 2 4 HOH HOH 204 B HOH 3 4 HOH HOH 205 B HOH 4 4 HOH HOH 206 B HOH 7 4 HOH HOH 207 B HOH 8 4 HOH HOH 208 B HOH 9 4 HOH HOH 209 B HOH 10 4 HOH HOH 210 B HOH 12 4 HOH HOH 211 B HOH 13 4 HOH HOH 212 B HOH 14 4 HOH HOH 213 B HOH 17 4 HOH HOH 214 B HOH 20 4 HOH HOH 215 B HOH 21 4 HOH HOH 216 B HOH 22 4 HOH HOH 217 B HOH 24 4 HOH HOH 218 B HOH 25 4 HOH HOH 219 B HOH 29 4 HOH HOH 220 B HOH 32 4 HOH HOH 221 B HOH 34 4 HOH HOH 222 B HOH 35 4 HOH HOH 223 B HOH 36 4 HOH HOH 224 B HOH 40 4 HOH HOH 225 B HOH 41 4 HOH HOH 226 B HOH 42 4 HOH HOH 227 B HOH 43 4 HOH HOH 228 B HOH 44 4 HOH HOH 229 B HOH 46 4 HOH HOH 230 B HOH 47 4 HOH HOH 231 B HOH 48 4 HOH HOH 232 B HOH 49 4 HOH HOH 233 B HOH 52 4 HOH HOH 234 B HOH 53 4 HOH HOH 235 B HOH 54 4 HOH HOH 236 B HOH 55 4 HOH HOH 237 B HOH 56 4 HOH HOH 238 B HOH 62 4 HOH HOH 239 B HOH 63 4 HOH HOH 240 B HOH 64 4 HOH HOH 241 B HOH 68 4 HOH HOH 242 B HOH 69 4 HOH HOH 243 B HOH 70 4 HOH HOH 244 B HOH 72 4 HOH HOH 245 B HOH 73 4 HOH HOH 246 B HOH 76 4 HOH HOH 247 B HOH 78 4 HOH HOH 248 B HOH 81 4 HOH HOH 249 B HOH 82 4 HOH HOH 250 B HOH 83 4 HOH HOH 251 B HOH 84 4 HOH HOH 252 B HOH 85 4 HOH HOH 253 B HOH 87 4 HOH HOH 254 B HOH 88 4 HOH HOH 255 B HOH 96 4 HOH HOH 257 B HOH 97 4 HOH HOH 258 B HOH 99 4 HOH HOH 259 B HOH 100 4 HOH HOH 260 B HOH 101 4 HOH HOH 261 B HOH 102 4 HOH HOH 262 B HOH 103 4 HOH HOH 263 B HOH 104 4 HOH HOH 264 B HOH 106 4 HOH HOH 265 B HOH 107 4 HOH HOH 266 B HOH 109 4 HOH HOH 267 B HOH 111 4 HOH HOH 268 B HOH 112 4 HOH HOH 269 B HOH 116 4 HOH HOH 271 B HOH 117 4 HOH HOH 272 B HOH 118 4 HOH HOH 273 B HOH 119 4 HOH HOH 274 B HOH 120 4 HOH HOH 275 B HOH 122 4 HOH HOH 276 B HOH 123 4 HOH HOH 277 B HOH 124 4 HOH HOH 278 B HOH 126 4 HOH HOH 279 B HOH 127 4 HOH HOH 280 B HOH 130 4 HOH HOH 281 B HOH 132 4 HOH HOH 282 B HOH 133 4 HOH HOH 283 B HOH 136 4 HOH HOH 284 B HOH 138 4 HOH HOH 285 B HOH 140 4 HOH HOH 286 B HOH 142 4 HOH HOH 287 B HOH 144 4 HOH HOH 288 B HOH 145 4 HOH HOH 289 B HOH 150 4 HOH HOH 290 B HOH 151 4 HOH HOH 291 B HOH 152 4 HOH HOH 292 B HOH 154 4 HOH HOH 293 B HOH 155 4 HOH HOH 294 B HOH 156 4 HOH HOH 295 B HOH 157 4 HOH HOH 296 B HOH 161 4 HOH HOH 297 B HOH 165 4 HOH HOH 298 B HOH 166 4 HOH HOH 299 B HOH 168 4 HOH HOH 300 B HOH 171 4 HOH HOH 302 B HOH 172 4 HOH HOH 303 B HOH 173 4 HOH HOH 304 B HOH 178 4 HOH HOH 305 B HOH 182 4 HOH HOH 306 B HOH 183 4 HOH HOH 307 B HOH 184 4 HOH HOH 308 B HOH 185 4 HOH HOH 309 B HOH 186 4 HOH HOH 310 B HOH 187 4 HOH HOH 311 B HOH 189 4 HOH HOH 312 B HOH 190 4 HOH HOH 313 B HOH 191 4 HOH HOH 314 B HOH 194 4 HOH HOH 315 B HOH 196 4 HOH HOH 316 B HOH 200 4 HOH HOH 317 B HOH 204 4 HOH HOH 318 B HOH 206 4 HOH HOH 319 B HOH 209 4 HOH HOH 320 B HOH 210 4 HOH HOH 321 B HOH 218 4 HOH HOH 322 B HOH 219 4 HOH HOH 323 B HOH 221 4 HOH HOH 324 B HOH 223 4 HOH HOH 325 B HOH 224 4 HOH HOH 326 B HOH 225 4 HOH HOH 327 B HOH 226 4 HOH HOH 328 B HOH 228 4 HOH HOH 329 B HOH 229 4 HOH HOH 330 B HOH 231 4 HOH HOH 331 B HOH 233 4 HOH HOH 332 B HOH 235 4 HOH HOH 333 B HOH 241 4 HOH HOH 334 B HOH 243 4 HOH HOH 335 B HOH 245 4 HOH HOH 336 B HOH 246 4 HOH HOH 337 B HOH 247 4 HOH HOH 338 B HOH 249 4 HOH HOH 339 B HOH 252 4 HOH HOH 340 B HOH 254 4 HOH HOH 341 B HOH 255 4 HOH HOH 342 B HOH 257 4 HOH HOH 343 B HOH 262 4 HOH HOH 344 B HOH 263 4 HOH HOH 345 B HOH 264 4 HOH HOH 346 B HOH 266 4 HOH HOH 347 B HOH 267 4 HOH HOH 348 B ALA -1 n 1 ALA -1 A HIS 0 n 2 HIS 0 A MET 1 n 3 MET 1 A PHE 2 n 4 PHE 2 A MET 3 n 5 MET 3 A ALA 4 n 6 ALA 4 A GLU 5 n 7 GLU 5 A ASN 6 n 8 ASN 6 A ARG 7 n 9 ARG 7 A LEU 8 n 10 LEU 8 A GLN 9 n 11 GLN 9 A LEU 10 n 12 LEU 10 A GLN 11 n 13 GLN 11 A LYS 12 n 14 LYS 12 A GLY 13 n 15 GLY 13 A SER 14 n 16 SER 14 A ALA 15 n 17 ALA 15 A GLU 16 n 18 GLU 16 A GLU 17 n 19 GLU 17 A THR 18 n 20 THR 18 A ILE 19 n 21 ILE 19 A GLU 20 n 22 GLU 20 A ARG 21 n 23 ARG 21 A PHE 22 n 24 PHE 22 A TYR 23 n 25 TYR 23 A ASN 24 n 26 ASN 24 A ARG 25 n 27 ARG 25 A GLN 26 n 28 GLN 26 A GLY 27 n 29 GLY 27 A ILE 28 n 30 ILE 28 A GLU 29 n 31 GLU 29 A THR 30 n 32 THR 30 A ILE 31 n 33 ILE 31 A GLU 32 n 34 GLU 32 A GLY 33 n 35 GLY 33 A PHE 34 n 36 PHE 34 A GLN 35 n 37 GLN 35 A GLN 36 n 38 GLN 36 A MET 37 n 39 MET 37 A PHE 38 n 40 PHE 38 A VAL 39 n 41 VAL 39 A THR 40 n 42 THR 40 A LYS 41 n 43 LYS 41 A THR 42 n 44 THR 42 A LEU 43 n 45 LEU 43 A ASN 44 n 46 ASN 44 A THR 45 n 47 THR 45 A GLU 46 n 48 GLU 46 A ASP 47 n 49 ASP 47 A THR 48 n 50 THR 48 A ASP 49 n 51 ASP 49 A GLU 50 n 52 GLU 50 A VAL 51 n 53 VAL 51 A LYS 52 n 54 LYS 52 A ILE 53 n 55 ILE 53 A LEU 54 n 56 LEU 54 A THR 55 n 57 THR 55 A ILE 56 n 58 ILE 56 A TRP 57 n 59 TRP 57 A GLU 58 n 60 GLU 58 A SER 59 n 61 SER 59 A GLU 60 n 62 GLU 60 A ASP 61 n 63 ASP 61 A SER 62 n 64 SER 62 A PHE 63 n 65 PHE 63 A ASN 64 n 66 ASN 64 A ASN 65 n 67 ASN 65 A TRP 66 n 68 TRP 66 A LEU 67 n 69 LEU 67 A ASN 68 n 70 ASN 68 A SER 69 n 71 SER 69 A ASP 70 n 72 ASP 70 A VAL 71 n 73 VAL 71 A PHE 72 n 74 PHE 72 A LYS 73 n 75 LYS 73 A GLU 74 n 76 GLU 74 A ALA 75 n 77 ALA 75 A HIS 76 n 78 HIS 76 A LYS 77 n 79 LYS 77 A ASN 78 n 80 ASN 78 A VAL 79 n 81 VAL 79 A ARG 80 n 82 ARG 80 A LEU 81 n 83 LEU 81 A LYS 82 n 84 LYS 82 A SER 83 n 85 SER 83 A ASP 84 n 86 ASP 84 A ASP 85 n 87 ASP 85 A ASP 86 n 88 ASP 86 A GLY 87 n 89 GLY 87 A GLN 88 n 90 GLN 88 A GLN 89 n 91 GLN 89 A SER 90 n 92 SER 90 A PRO 91 n 93 PRO 91 A ILE 92 n 94 ILE 92 A LEU 93 n 95 LEU 93 A SER 94 n 96 SER 94 A ASN 95 n 97 ASN 95 A LYS 96 n 98 LYS 96 A VAL 97 n 99 VAL 97 A PHE 98 n 100 PHE 98 A LYS 99 n 101 LYS 99 A TYR 100 n 102 TYR 100 A ASP 101 n 103 ASP 101 A ILE 102 n 104 ILE 102 A GLY 103 n 105 GLY 103 A TYR 104 n 106 TYR 104 A HIS 105 n 107 HIS 105 A TYR 106 n 108 TYR 106 A GLN 107 n 109 GLN 107 A LYS 108 n 110 LYS 108 A ALA -1 n 1 ALA -1 B HIS 0 n 2 HIS 0 B MET 1 n 3 MET 1 B PHE 2 n 4 PHE 2 B MET 3 n 5 MET 3 B ALA 4 n 6 ALA 4 B GLU 5 n 7 GLU 5 B ASN 6 n 8 ASN 6 B ARG 7 n 9 ARG 7 B LEU 8 n 10 LEU 8 B GLN 9 n 11 GLN 9 B LEU 10 n 12 LEU 10 B GLN 11 n 13 GLN 11 B LYS 12 n 14 LYS 12 B GLY 13 n 15 GLY 13 B SER 14 n 16 SER 14 B ALA 15 n 17 ALA 15 B GLU 16 n 18 GLU 16 B GLU 17 n 19 GLU 17 B THR 18 n 20 THR 18 B ILE 19 n 21 ILE 19 B GLU 20 n 22 GLU 20 B ARG 21 n 23 ARG 21 B PHE 22 n 24 PHE 22 B TYR 23 n 25 TYR 23 B ASN 24 n 26 ASN 24 B ARG 25 n 27 ARG 25 B GLN 26 n 28 GLN 26 B GLY 27 n 29 GLY 27 B ILE 28 n 30 ILE 28 B GLU 29 n 31 GLU 29 B THR 30 n 32 THR 30 B ILE 31 n 33 ILE 31 B GLU 32 n 34 GLU 32 B GLY 33 n 35 GLY 33 B PHE 34 n 36 PHE 34 B GLN 35 n 37 GLN 35 B GLN 36 n 38 GLN 36 B MET 37 n 39 MET 37 B PHE 38 n 40 PHE 38 B VAL 39 n 41 VAL 39 B THR 40 n 42 THR 40 B LYS 41 n 43 LYS 41 B THR 42 n 44 THR 42 B LEU 43 n 45 LEU 43 B ASN 44 n 46 ASN 44 B THR 45 n 47 THR 45 B GLU 46 n 48 GLU 46 B ASP 47 n 49 ASP 47 B THR 48 n 50 THR 48 B ASP 49 n 51 ASP 49 B GLU 50 n 52 GLU 50 B VAL 51 n 53 VAL 51 B LYS 52 n 54 LYS 52 B ILE 53 n 55 ILE 53 B LEU 54 n 56 LEU 54 B THR 55 n 57 THR 55 B ILE 56 n 58 ILE 56 B TRP 57 n 59 TRP 57 B GLU 58 n 60 GLU 58 B SER 59 n 61 SER 59 B GLU 60 n 62 GLU 60 B ASP 61 n 63 ASP 61 B SER 62 n 64 SER 62 B PHE 63 n 65 PHE 63 B ASN 64 n 66 ASN 64 B ASN 65 n 67 ASN 65 B TRP 66 n 68 TRP 66 B LEU 67 n 69 LEU 67 B ASN 68 n 70 ASN 68 B SER 69 n 71 SER 69 B ASP 70 n 72 ASP 70 B VAL 71 n 73 VAL 71 B PHE 72 n 74 PHE 72 B LYS 73 n 75 LYS 73 B GLU 74 n 76 GLU 74 B ALA 75 n 77 ALA 75 B HIS 76 n 78 HIS 76 B LYS 77 n 79 LYS 77 B ASN 78 n 80 ASN 78 B VAL 79 n 81 VAL 79 B ARG 80 n 82 ARG 80 B LEU 81 n 83 LEU 81 B LYS 82 n 84 LYS 82 B SER 83 n 85 SER 83 B ASP 84 n 86 ASP 84 B ASP 85 n 87 ASP 85 B ASP 86 n 88 ASP 86 B GLY 87 n 89 GLY 87 B GLN 88 n 90 GLN 88 B GLN 89 n 91 GLN 89 B SER 90 n 92 SER 90 B PRO 91 n 93 PRO 91 B ILE 92 n 94 ILE 92 B LEU 93 n 95 LEU 93 B SER 94 n 96 SER 94 B ASN 95 n 97 ASN 95 B LYS 96 n 98 LYS 96 B VAL 97 n 99 VAL 97 B PHE 98 n 100 PHE 98 B LYS 99 n 101 LYS 99 B TYR 100 n 102 TYR 100 B ASP 101 n 103 ASP 101 B ILE 102 n 104 ILE 102 B GLY 103 n 105 GLY 103 B TYR 104 n 106 TYR 104 B HIS 105 n 107 HIS 105 B TYR 106 n 108 TYR 106 B GLN 107 n 109 GLN 107 B LYS 108 n 110 LYS 108 B author_and_software_defined_assembly PISA 2 dimeric 5770 -80 11330 A HIS 76 A NE2 HIS 78 1_555 A COH 200 D CO COH 1_555 A COH 200 D NA COH 1_555 90.5 A HIS 76 A NE2 HIS 78 1_555 A COH 200 D CO COH 1_555 A COH 200 D NB COH 1_555 90.0 A COH 200 D NA COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D NB COH 1_555 89.6 A HIS 76 A NE2 HIS 78 1_555 A COH 200 D CO COH 1_555 A COH 200 D NC COH 1_555 91.3 A COH 200 D NA COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D NC COH 1_555 177.7 A COH 200 D NB COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D NC COH 1_555 89.0 A HIS 76 A NE2 HIS 78 1_555 A COH 200 D CO COH 1_555 A COH 200 D ND COH 1_555 93.8 A COH 200 D NA COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D ND COH 1_555 90.4 A COH 200 D NB COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D ND COH 1_555 176.1 A COH 200 D NC COH 1_555 A COH 200 D CO COH 1_555 A COH 200 D ND COH 1_555 90.9 B HIS 76 B NE2 HIS 78 1_555 B COH 200 F CO COH 1_555 B COH 200 F NA COH 1_555 91.4 B HIS 76 B NE2 HIS 78 1_555 B COH 200 F CO COH 1_555 B COH 200 F NB COH 1_555 90.9 B COH 200 F NA COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F NB COH 1_555 89.6 B HIS 76 B NE2 HIS 78 1_555 B COH 200 F CO COH 1_555 B COH 200 F NC COH 1_555 90.9 B COH 200 F NA COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F NC COH 1_555 177.6 B COH 200 F NB COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F NC COH 1_555 89.5 B HIS 76 B NE2 HIS 78 1_555 B COH 200 F CO COH 1_555 B COH 200 F ND COH 1_555 92.7 B COH 200 F NA COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F ND COH 1_555 90.5 B COH 200 F NB COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F ND COH 1_555 176.4 B COH 200 F NC COH 1_555 B COH 200 F CO COH 1_555 B COH 200 F ND COH 1_555 90.3 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 LEU 8 A N LEU 10 A O VAL 51 A O VAL 53 A O ILE 56 A O ILE 58 A N GLN 36 A N GLN 38 A N VAL 39 A N VAL 41 B O TYR 104 B O TYR 106 B O PHE 98 B O PHE 100 B N GLU 5 B N GLU 7 B N LEU 8 B N LEU 10 B O VAL 51 B O VAL 53 B O ILE 56 B O ILE 58 B N GLN 36 B N GLN 38 B O LYS 41 B O LYS 43 A N ASP 101 A N ASP 103 A O PHE 98 A O PHE 100 A N GLU 5 A N GLU 7 1 A NB COH 200 PLANAR 1 B NB COH 200 PLANAR 1 A ASN 44 -171.20 -176.01 15.929 -0.12 0.00 0.37 0.32 0.00 0.03 0.958 0.949 HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS 0.20110 0.18135 0.18233 1.50 55.81 2079 39272 5.0 95.74 1.108 0.043 RANDOM 1 THROUGHOUT MOLECULAR REPLACEMENT 0.075 0.073 0.80 0.80 1.40 PDB ENTRY 1XBW MAXIMUM LIKELIHOOD MASK 1.50 55.81 267 2187 88 0 1832 0.011 0.022 1968 1.258 2.061 2676 5.918 5.000 218 35.797 25.636 110 10.450 15.000 348 9.732 15.000 8 0.084 0.200 262 0.006 0.020 1526 0.201 0.200 822 0.303 0.200 1332 0.122 0.200 193 0.231 0.200 32 0.098 0.200 17 0.930 1.500 1122 1.417 2.000 1760 1.962 3.000 973 2.983 4.500 914 0.257 0.242 1.539 104 2247 20 74.35 1.5 56 2ZDP 39272 2 0.045 1 10.9 3.5 0.323 1.5 1.54 refinement REFMAC 5.2.0019 data collection Blu-Ice data reduction HKL-2000 data scaling SCALEPACK phasing MOLREP Crystal structure of IsdI in complex with Cobalt protoporphyrin IX 1 N N 1 N N 2 N N 3 N N 2 N N 3 N N 4 N N 4 N N A SER 14 A SER 16 HELX_P A ARG 21 A ARG 23 1 1 8 A GLY 27 A GLY 29 HELX_P A ILE 31 A ILE 33 5 2 5 A SER 59 A SER 61 HELX_P A ASN 68 A ASN 70 1 3 10 A SER 69 A SER 71 HELX_P A HIS 76 A HIS 78 1 4 8 B SER 14 B SER 16 HELX_P B ARG 21 B ARG 23 1 5 8 B GLY 27 B GLY 29 HELX_P B ILE 31 B ILE 33 5 6 5 B SER 59 B SER 61 HELX_P B ASN 68 B ASN 70 1 7 10 B SER 69 B SER 71 HELX_P B LYS 77 B LYS 79 1 8 9 metalc 2.141 A HIS 76 A NE2 HIS 78 1_555 A COH 200 D CO COH 1_555 metalc 2.134 B HIS 76 B NE2 HIS 78 1_555 B COH 200 F CO COH 1_555 OXIDOREDUCTASE ruffling, beta-barrel, cobalt protoporphyrin IX, Cytoplasm, Heme, Iron, Metal-binding, Monooxygenase, Oxidoreductase ISDI_STAAN UNP 1 1 Q7A827 MFMAENRLQLQKGSAEETIERFYNRQGIETIEGFQQMFVTKTLNTEDTDEVKILTIWESEDSFNNWLNSDVFKEAHKNVR LKSDDDGQQSPILSNKVFKYDIGYHYQK 1 108 2ZDP 1 108 Q7A827 A 1 3 110 1 108 2ZDP 1 108 Q7A827 B 1 3 110 1 expression tag ALA -1 2ZDP A Q7A827 UNP 1 1 expression tag HIS 0 2ZDP A Q7A827 UNP 2 2 expression tag ALA -1 2ZDP B Q7A827 UNP 1 2 expression tag HIS 0 2ZDP B Q7A827 UNP 2 9 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A PHE 2 A PHE 4 A LEU 10 A LEU 12 A ASP 49 A ASP 51 A TRP 57 A TRP 59 A PHE 34 A PHE 36 A THR 42 A THR 44 B ILE 92 B ILE 94 B GLN 107 B GLN 109 B PHE 2 B PHE 4 B GLN 11 B GLN 13 B THR 48 B THR 50 B TRP 57 B TRP 59 B PHE 34 B PHE 36 B THR 42 B THR 44 A ILE 92 A ILE 94 A GLN 107 A GLN 109 A PHE 2 A PHE 4 A LEU 10 A LEU 12 BINDING SITE FOR RESIDUE CL A 201 A CL 201 Software 3 BINDING SITE FOR RESIDUE CL B 202 B CL 202 Software 3 BINDING SITE FOR RESIDUE COH A 200 A COH 200 Software 16 BINDING SITE FOR RESIDUE COH B 200 B COH 200 Software 16 A ASN 6 A ASN 8 3 1_555 A PHE 22 A PHE 24 3 1_555 A ILE 53 A ILE 55 3 1_555 B ASN 6 B ASN 8 3 1_555 B PHE 22 B PHE 24 3 1_555 B ILE 53 B ILE 55 3 1_555 A ASN 6 A ASN 8 16 1_555 A ARG 21 A ARG 23 16 1_555 A PHE 22 A PHE 24 16 1_555 A ARG 25 A ARG 27 16 1_555 A GLN 26 A GLN 28 16 1_555 A GLY 27 A GLY 29 16 1_555 A ILE 28 A ILE 30 16 1_555 A THR 55 A THR 57 16 1_555 A TRP 66 A TRP 68 16 1_555 A ALA 75 A ALA 77 16 1_555 A HIS 76 A HIS 78 16 1_555 A ASN 95 A ASN 97 16 1_555 A HOH 203 G HOH 16 1_555 A HOH 244 G HOH 16 1_555 A HOH 257 G HOH 16 1_555 A HOH 298 G HOH 16 1_555 B ASN 6 B ASN 8 16 1_555 B ARG 21 B ARG 23 16 1_555 B PHE 22 B PHE 24 16 1_555 B ARG 25 B ARG 27 16 1_555 B GLN 26 B GLN 28 16 1_555 B GLY 27 B GLY 29 16 1_555 B ILE 28 B ILE 30 16 1_555 B THR 55 B THR 57 16 1_555 B PHE 63 B PHE 65 16 1_555 B TRP 66 B TRP 68 16 1_555 B ALA 75 B ALA 77 16 1_555 B HIS 76 B HIS 78 16 1_555 B ASN 95 B ASN 97 16 1_555 B HOH 203 H HOH 16 1_555 B HOH 334 H HOH 16 1_555 B HOH 339 H HOH 16 1_555 4 P 1 21 1