0.021304 0.000000 0.000000 0.000000 0.010894 0.000000 0.000000 0.000000 0.013189 0.00000 0.00000 0.00000 CIS PROLINE - PRO 71 CIS PROLINE - PRO 287 THERE IS A STRONG 2.3 ANGSTROMS H-BOND BETWEEN NZ OF LYS 209 AND NZ OF LYS 301 WHICH IT IS SUGGESTED FORMS A PH-SENSITIVE DI-LYSINE TRIGGER THAT OPENS THE TWO DOMAINS OF THE N-LOBE AT LOW PH AND FACILITATES FE(III) RELEASE. Dewan, J.C. Mikami, B. Sacchettini, J.C. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 4 90.00 90.00 90.00 46.940 91.790 75.820 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 C O3 -2 60.009 CARBONATE ION non-polymer C3 H7 N O2 S 121.158 y CYSTEINE L-peptide linking Fe 3 55.845 FE (III) ION 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 US Biochemistry BICHAW 0033 0006-2960 32 11963 11968 10.1021/bi00096a004 8218271 Structural evidence for a pH-sensitive dilysine trigger in the hen ovotransferrin N-lobe: implications for transferrin iron release. 1993 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 x-ray 1 1.0 36105.773 OVOTRANSFERRIN 1 man polymer 55.845 FE (III) ION 1 syn non-polymer 60.009 CARBONATE ION 1 syn non-polymer 18.015 water 108 nat water no no SVIRWCTISSPEEKKCNNLRDLTQQERISLTCVQKATYLDCIKAIANNEADAISLDGGQAFEAGLAPYKLKPIAAEVYEH TEGSTTSYYAVAVVKKGTEFTVNDLQGKTSCHTGLGRSAGWNIPIGTLLHRGAIEWEGIESGSVEQAVAKFFSASCVPGA TIEQKLCRQCKGDPKTKCARNAPYSGYSGAFHCLKDGKGDVAFVKHTTVNENAPDQKDEYELLCLDGSRQPVDNYKTCNW ARVAAHAVVARDDNKVEDIWSFLSKAQSDFGVDTKSDFHLFGPPGKKDPVLKDLLFKDSAIMLKRVPSLMDSQLYLGFEY YSAIQSMR SVIRWCTISSPEEKKCNNLRDLTQQERISLTCVQKATYLDCIKAIANNEADAISLDGGQAFEAGLAPYKLKPIAAEVYEH TEGSTTSYYAVAVVKKGTEFTVNDLQGKTSCHTGLGRSAGWNIPIGTLLHRGAIEWEGIESGSVEQAVAKFFSASCVPGA TIEQKLCRQCKGDPKTKCARNAPYSGYSGAFHCLKDGKGDVAFVKHTTVNENAPDQKDEYELLCLDGSRQPVDNYKTCNW ARVAAHAVVARDDNKVEDIWSFLSKAQSDFGVDTKSDFHLFGPPGKKDPVLKDLLFKDSAIMLKRVPSLMDSQLYLGFEY YSAIQSMR 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 n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n n chicken Gallus sample 9031 Gallus gallus 2.26 45.60 pdbx_database_status software software repository Initial release Version format compliance Version format compliance Data collection Other Refinement description Data collection Refinement description 1 0 1994-10-15 1 1 2008-03-24 1 2 2011-07-13 1 3 2019-07-17 1 4 2019-08-14 _pdbx_database_status.process_site _software.classification _software.classification HELIX HELIX NAMES ARE SIMILAR TO HUMAN LACTOFERRIN (TABLE 3, J. MOL. BIOL., VOL. 209, P. 711, 1993) WHICH ARE SIMILAR TO THE RABBIT SERUM TRANSFERRIN STRUCTURE (BIOCHEMISTRY, VOL. 27, P. 5804, 1988). HELIX NAMES FOR RESIDUES 167 - 174 ARE NOT NOTED IN LACTOFERRIN STRUCTURE. SHEET IN SHEET RECORDS BELOW, STRAND NAMES ARE SAME AS HUMAN LACTOFERRIN (TABLE 3, J. MOL. BIOL., VOL. 209, P. 711, 1993) WHICH ARE SAME AS THE RABBIT SERUM TRANSFERRIN STRUCTURE (BIOCHEMISTRY, VOL. 27, P. 5804, 1988). Y BNL 1993-09-15 REL REL FE FE (III) ION CO3 CARBONATE ION HOH water THERE IS A STRONG 2.3 ANGSTROMS H-BOND BETWEEN NZ OF LYS 209 AND NZ OF LYS 301 WHICH IT IS SUGGESTED FORMS A PH-SENSITIVE DI-LYSINE TRIGGER THAT OPENS THE TWO DOMAINS OF THE N-LOBE AT LOW PH AND FACILITATES FE(III) RELEASE. SEQUENCE ADVISORY NOTICE DIFFERENCE BETWEEN SWISS-PROT AND PDB SEQUENCE. SWISS-PROT ENTRY NAME: TRFE_CHICK SWISS-PROT RESIDUE PDB SEQRES NAME NUMBER NAME CHAIN SEQ/INSERT CODE VAL 64 ALA 64 ILE 81 VAL 81 TRP 135 ARG 135 LEU 220 GLN 220 ASN 221 LYS 221 THE FOLLOWING RESIDUES ARE MISSING FROM THE N-TERMINUS SEQUENCE NUMBER IS THAT FROM SWISS-PROT ENTRY ALA 1 PRO 2 PRO 3 LYS 4 FE 333 2 FE FE 333 A CO3 334 3 CO3 CO3 334 A HOH 335 4 HOH HOH 335 A HOH 336 4 HOH HOH 336 A HOH 337 4 HOH HOH 337 A HOH 338 4 HOH HOH 338 A HOH 339 4 HOH HOH 339 A HOH 340 4 HOH HOH 340 A HOH 341 4 HOH HOH 341 A HOH 342 4 HOH HOH 342 A HOH 343 4 HOH HOH 343 A HOH 344 4 HOH HOH 344 A HOH 345 4 HOH HOH 345 A HOH 346 4 HOH HOH 346 A HOH 347 4 HOH HOH 347 A HOH 348 4 HOH HOH 348 A HOH 349 4 HOH HOH 349 A HOH 350 4 HOH HOH 350 A HOH 351 4 HOH HOH 351 A HOH 352 4 HOH HOH 352 A HOH 353 4 HOH HOH 353 A HOH 354 4 HOH HOH 354 A HOH 355 4 HOH HOH 355 A HOH 356 4 HOH HOH 356 A HOH 357 4 HOH HOH 357 A HOH 358 4 HOH HOH 358 A HOH 359 4 HOH HOH 359 A HOH 360 4 HOH HOH 360 A HOH 361 4 HOH HOH 361 A HOH 362 4 HOH HOH 362 A HOH 363 4 HOH HOH 363 A HOH 364 4 HOH HOH 364 A HOH 365 4 HOH HOH 365 A HOH 366 4 HOH HOH 366 A HOH 367 4 HOH HOH 367 A HOH 368 4 HOH HOH 368 A HOH 369 4 HOH HOH 369 A HOH 370 4 HOH HOH 370 A HOH 371 4 HOH HOH 371 A HOH 372 4 HOH HOH 372 A HOH 373 4 HOH HOH 373 A HOH 374 4 HOH HOH 374 A HOH 375 4 HOH HOH 375 A HOH 376 4 HOH HOH 376 A HOH 377 4 HOH HOH 377 A HOH 378 4 HOH HOH 378 A HOH 379 4 HOH HOH 379 A HOH 380 4 HOH HOH 380 A HOH 381 4 HOH HOH 381 A HOH 382 4 HOH HOH 382 A HOH 383 4 HOH HOH 383 A HOH 384 4 HOH HOH 384 A HOH 385 4 HOH HOH 385 A HOH 386 4 HOH HOH 386 A HOH 387 4 HOH HOH 387 A HOH 388 4 HOH HOH 388 A HOH 389 4 HOH HOH 389 A HOH 390 4 HOH HOH 390 A HOH 391 4 HOH HOH 391 A HOH 392 4 HOH HOH 392 A HOH 393 4 HOH HOH 393 A HOH 394 4 HOH HOH 394 A HOH 500 4 HOH HOH 500 A HOH 501 4 HOH HOH 501 A HOH 502 4 HOH HOH 502 A HOH 503 4 HOH HOH 503 A HOH 504 4 HOH HOH 504 A HOH 505 4 HOH HOH 505 A HOH 506 4 HOH HOH 506 A HOH 507 4 HOH HOH 507 A HOH 508 4 HOH HOH 508 A HOH 509 4 HOH HOH 509 A HOH 510 4 HOH HOH 510 A HOH 511 4 HOH HOH 511 A HOH 512 4 HOH HOH 512 A HOH 513 4 HOH HOH 513 A HOH 514 4 HOH HOH 514 A HOH 515 4 HOH HOH 515 A HOH 516 4 HOH HOH 516 A HOH 517 4 HOH HOH 517 A HOH 518 4 HOH HOH 518 A HOH 519 4 HOH HOH 519 A HOH 520 4 HOH HOH 520 A HOH 521 4 HOH HOH 521 A HOH 522 4 HOH HOH 522 A HOH 523 4 HOH HOH 523 A HOH 524 4 HOH HOH 524 A HOH 525 4 HOH HOH 525 A HOH 526 4 HOH HOH 526 A HOH 527 4 HOH HOH 527 A HOH 528 4 HOH HOH 528 A HOH 529 4 HOH HOH 529 A HOH 530 4 HOH HOH 530 A HOH 531 4 HOH HOH 531 A HOH 532 4 HOH HOH 532 A HOH 533 4 HOH HOH 533 A HOH 534 4 HOH HOH 534 A HOH 535 4 HOH HOH 535 A HOH 536 4 HOH HOH 536 A HOH 537 4 HOH HOH 537 A HOH 538 4 HOH HOH 538 A HOH 539 4 HOH HOH 539 A HOH 540 4 HOH HOH 540 A HOH 541 4 HOH HOH 541 A HOH 542 4 HOH HOH 542 A HOH 543 4 HOH HOH 543 A HOH 544 4 HOH HOH 544 A HOH 545 4 HOH HOH 545 A HOH 546 4 HOH HOH 546 A HOH 547 4 HOH HOH 547 A SER 5 n 1 SER 5 A VAL 6 n 2 VAL 6 A ILE 7 n 3 ILE 7 A ARG 8 n 4 ARG 8 A TRP 9 n 5 TRP 9 A CYS 10 n 6 CYS 10 A THR 11 n 7 THR 11 A ILE 12 n 8 ILE 12 A SER 13 n 9 SER 13 A SER 14 n 10 SER 14 A PRO 15 n 11 PRO 15 A GLU 16 n 12 GLU 16 A GLU 17 n 13 GLU 17 A LYS 18 n 14 LYS 18 A LYS 19 n 15 LYS 19 A CYS 20 n 16 CYS 20 A ASN 21 n 17 ASN 21 A ASN 22 n 18 ASN 22 A LEU 23 n 19 LEU 23 A ARG 24 n 20 ARG 24 A ASP 25 n 21 ASP 25 A LEU 26 n 22 LEU 26 A THR 27 n 23 THR 27 A GLN 28 n 24 GLN 28 A GLN 29 n 25 GLN 29 A GLU 30 n 26 GLU 30 A ARG 31 n 27 ARG 31 A ILE 32 n 28 ILE 32 A SER 33 n 29 SER 33 A LEU 34 n 30 LEU 34 A THR 35 n 31 THR 35 A CYS 36 n 32 CYS 36 A VAL 37 n 33 VAL 37 A GLN 38 n 34 GLN 38 A LYS 39 n 35 LYS 39 A ALA 40 n 36 ALA 40 A THR 41 n 37 THR 41 A TYR 42 n 38 TYR 42 A LEU 43 n 39 LEU 43 A ASP 44 n 40 ASP 44 A CYS 45 n 41 CYS 45 A ILE 46 n 42 ILE 46 A LYS 47 n 43 LYS 47 A ALA 48 n 44 ALA 48 A ILE 49 n 45 ILE 49 A ALA 50 n 46 ALA 50 A ASN 51 n 47 ASN 51 A ASN 52 n 48 ASN 52 A GLU 53 n 49 GLU 53 A ALA 54 n 50 ALA 54 A ASP 55 n 51 ASP 55 A ALA 56 n 52 ALA 56 A ILE 57 n 53 ILE 57 A SER 58 n 54 SER 58 A LEU 59 n 55 LEU 59 A ASP 60 n 56 ASP 60 A GLY 61 n 57 GLY 61 A GLY 62 n 58 GLY 62 A GLN 63 n 59 GLN 63 A ALA 64 n 60 ALA 64 A PHE 65 n 61 PHE 65 A GLU 66 n 62 GLU 66 A ALA 67 n 63 ALA 67 A GLY 68 n 64 GLY 68 A LEU 69 n 65 LEU 69 A ALA 70 n 66 ALA 70 A PRO 71 n 67 PRO 71 A TYR 72 n 68 TYR 72 A LYS 73 n 69 LYS 73 A LEU 74 n 70 LEU 74 A LYS 75 n 71 LYS 75 A PRO 76 n 72 PRO 76 A ILE 77 n 73 ILE 77 A ALA 78 n 74 ALA 78 A ALA 79 n 75 ALA 79 A GLU 80 n 76 GLU 80 A VAL 81 n 77 VAL 81 A TYR 82 n 78 TYR 82 A GLU 83 n 79 GLU 83 A HIS 84 n 80 HIS 84 A THR 85 n 81 THR 85 A GLU 86 n 82 GLU 86 A GLY 87 n 83 GLY 87 A SER 88 n 84 SER 88 A THR 89 n 85 THR 89 A THR 90 n 86 THR 90 A SER 91 n 87 SER 91 A TYR 92 n 88 TYR 92 A TYR 93 n 89 TYR 93 A ALA 94 n 90 ALA 94 A VAL 95 n 91 VAL 95 A ALA 96 n 92 ALA 96 A VAL 97 n 93 VAL 97 A VAL 98 n 94 VAL 98 A LYS 99 n 95 LYS 99 A LYS 100 n 96 LYS 100 A GLY 101 n 97 GLY 101 A THR 102 n 98 THR 102 A GLU 103 n 99 GLU 103 A PHE 104 n 100 PHE 104 A THR 105 n 101 THR 105 A VAL 106 n 102 VAL 106 A ASN 107 n 103 ASN 107 A ASP 108 n 104 ASP 108 A LEU 109 n 105 LEU 109 A GLN 110 n 106 GLN 110 A GLY 111 n 107 GLY 111 A LYS 112 n 108 LYS 112 A THR 113 n 109 THR 113 A SER 114 n 110 SER 114 A CYS 115 n 111 CYS 115 A HIS 116 n 112 HIS 116 A THR 117 n 113 THR 117 A GLY 118 n 114 GLY 118 A LEU 119 n 115 LEU 119 A GLY 120 n 116 GLY 120 A ARG 121 n 117 ARG 121 A SER 122 n 118 SER 122 A ALA 123 n 119 ALA 123 A GLY 124 n 120 GLY 124 A TRP 125 n 121 TRP 125 A ASN 126 n 122 ASN 126 A ILE 127 n 123 ILE 127 A PRO 128 n 124 PRO 128 A ILE 129 n 125 ILE 129 A GLY 130 n 126 GLY 130 A THR 131 n 127 THR 131 A LEU 132 n 128 LEU 132 A LEU 133 n 129 LEU 133 A HIS 134 n 130 HIS 134 A ARG 135 n 131 ARG 135 A GLY 136 n 132 GLY 136 A ALA 137 n 133 ALA 137 A ILE 138 n 134 ILE 138 A GLU 139 n 135 GLU 139 A TRP 140 n 136 TRP 140 A GLU 141 n 137 GLU 141 A GLY 142 n 138 GLY 142 A ILE 143 n 139 ILE 143 A GLU 144 n 140 GLU 144 A SER 145 n 141 SER 145 A GLY 146 n 142 GLY 146 A SER 147 n 143 SER 147 A VAL 148 n 144 VAL 148 A GLU 149 n 145 GLU 149 A GLN 150 n 146 GLN 150 A ALA 151 n 147 ALA 151 A VAL 152 n 148 VAL 152 A ALA 153 n 149 ALA 153 A LYS 154 n 150 LYS 154 A PHE 155 n 151 PHE 155 A PHE 156 n 152 PHE 156 A SER 157 n 153 SER 157 A ALA 158 n 154 ALA 158 A SER 159 n 155 SER 159 A CYS 160 n 156 CYS 160 A VAL 161 n 157 VAL 161 A PRO 162 n 158 PRO 162 A GLY 163 n 159 GLY 163 A ALA 164 n 160 ALA 164 A THR 165 n 161 THR 165 A ILE 166 n 162 ILE 166 A GLU 167 n 163 GLU 167 A GLN 168 n 164 GLN 168 A LYS 169 n 165 LYS 169 A LEU 170 n 166 LEU 170 A CYS 171 n 167 CYS 171 A ARG 172 n 168 ARG 172 A GLN 173 n 169 GLN 173 A CYS 174 n 170 CYS 174 A LYS 175 n 171 LYS 175 A GLY 176 n 172 GLY 176 A ASP 177 n 173 ASP 177 A PRO 178 n 174 PRO 178 A LYS 179 n 175 LYS 179 A THR 180 n 176 THR 180 A LYS 181 n 177 LYS 181 A CYS 182 n 178 CYS 182 A ALA 183 n 179 ALA 183 A ARG 184 n 180 ARG 184 A ASN 185 n 181 ASN 185 A ALA 186 n 182 ALA 186 A PRO 187 n 183 PRO 187 A TYR 188 n 184 TYR 188 A SER 189 n 185 SER 189 A GLY 190 n 186 GLY 190 A TYR 191 n 187 TYR 191 A SER 192 n 188 SER 192 A GLY 193 n 189 GLY 193 A ALA 194 n 190 ALA 194 A PHE 195 n 191 PHE 195 A HIS 196 n 192 HIS 196 A CYS 197 n 193 CYS 197 A LEU 198 n 194 LEU 198 A LYS 199 n 195 LYS 199 A ASP 200 n 196 ASP 200 A GLY 201 n 197 GLY 201 A LYS 202 n 198 LYS 202 A GLY 203 n 199 GLY 203 A ASP 204 n 200 ASP 204 A VAL 205 n 201 VAL 205 A ALA 206 n 202 ALA 206 A PHE 207 n 203 PHE 207 A VAL 208 n 204 VAL 208 A LYS 209 n 205 LYS 209 A HIS 210 n 206 HIS 210 A THR 211 n 207 THR 211 A THR 212 n 208 THR 212 A VAL 213 n 209 VAL 213 A ASN 214 n 210 ASN 214 A GLU 215 n 211 GLU 215 A ASN 216 n 212 ASN 216 A ALA 217 n 213 ALA 217 A PRO 218 n 214 PRO 218 A ASP 219 n 215 ASP 219 A GLN 220 n 216 GLN 220 A LYS 221 n 217 LYS 221 A ASP 222 n 218 ASP 222 A GLU 223 n 219 GLU 223 A TYR 224 n 220 TYR 224 A GLU 225 n 221 GLU 225 A LEU 226 n 222 LEU 226 A LEU 227 n 223 LEU 227 A CYS 228 n 224 CYS 228 A LEU 229 n 225 LEU 229 A ASP 230 n 226 ASP 230 A GLY 231 n 227 GLY 231 A SER 232 n 228 SER 232 A ARG 233 n 229 ARG 233 A GLN 234 n 230 GLN 234 A PRO 235 n 231 PRO 235 A VAL 236 n 232 VAL 236 A ASP 237 n 233 ASP 237 A ASN 238 n 234 ASN 238 A TYR 239 n 235 TYR 239 A LYS 240 n 236 LYS 240 A THR 241 n 237 THR 241 A CYS 242 n 238 CYS 242 A ASN 243 n 239 ASN 243 A TRP 244 n 240 TRP 244 A ALA 245 n 241 ALA 245 A ARG 246 n 242 ARG 246 A VAL 247 n 243 VAL 247 A ALA 248 n 244 ALA 248 A ALA 249 n 245 ALA 249 A HIS 250 n 246 HIS 250 A ALA 251 n 247 ALA 251 A VAL 252 n 248 VAL 252 A VAL 253 n 249 VAL 253 A ALA 254 n 250 ALA 254 A ARG 255 n 251 ARG 255 A ASP 256 n 252 ASP 256 A ASP 257 n 253 ASP 257 A ASN 258 n 254 ASN 258 A LYS 259 n 255 LYS 259 A VAL 260 n 256 VAL 260 A GLU 261 n 257 GLU 261 A ASP 262 n 258 ASP 262 A ILE 263 n 259 ILE 263 A TRP 264 n 260 TRP 264 A SER 265 n 261 SER 265 A PHE 266 n 262 PHE 266 A LEU 267 n 263 LEU 267 A SER 268 n 264 SER 268 A LYS 269 n 265 LYS 269 A ALA 270 n 266 ALA 270 A GLN 271 n 267 GLN 271 A SER 272 n 268 SER 272 A ASP 273 n 269 ASP 273 A PHE 274 n 270 PHE 274 A GLY 275 n 271 GLY 275 A VAL 276 n 272 VAL 276 A ASP 277 n 273 ASP 277 A THR 278 n 274 THR 278 A LYS 279 n 275 LYS 279 A SER 280 n 276 SER 280 A ASP 281 n 277 ASP 281 A PHE 282 n 278 PHE 282 A HIS 283 n 279 HIS 283 A LEU 284 n 280 LEU 284 A PHE 285 n 281 PHE 285 A GLY 286 n 282 GLY 286 A PRO 287 n 283 PRO 287 A PRO 288 n 284 PRO 288 A GLY 289 n 285 GLY 289 A LYS 290 n 286 LYS 290 A LYS 291 n 287 LYS 291 A ASP 292 n 288 ASP 292 A PRO 293 n 289 PRO 293 A VAL 294 n 290 VAL 294 A LEU 295 n 291 LEU 295 A LYS 296 n 292 LYS 296 A ASP 297 n 293 ASP 297 A LEU 298 n 294 LEU 298 A LEU 299 n 295 LEU 299 A PHE 300 n 296 PHE 300 A LYS 301 n 297 LYS 301 A ASP 302 n 298 ASP 302 A SER 303 n 299 SER 303 A ALA 304 n 300 ALA 304 A ILE 305 n 301 ILE 305 A MET 306 n 302 MET 306 A LEU 307 n 303 LEU 307 A LYS 308 n 304 LYS 308 A ARG 309 n 305 ARG 309 A VAL 310 n 306 VAL 310 A PRO 311 n 307 PRO 311 A SER 312 n 308 SER 312 A LEU 313 n 309 LEU 313 A MET 314 n 310 MET 314 A ASP 315 n 311 ASP 315 A SER 316 n 312 SER 316 A GLN 317 n 313 GLN 317 A LEU 318 n 314 LEU 318 A TYR 319 n 315 TYR 319 A LEU 320 n 316 LEU 320 A GLY 321 n 317 GLY 321 A PHE 322 n 318 PHE 322 A GLU 323 n 319 GLU 323 A TYR 324 n 320 TYR 324 A TYR 325 n 321 TYR 325 A SER 326 n 322 SER 326 A ALA 327 n 323 ALA 327 A ILE 328 n 324 ILE 328 A GLN 329 n 325 GLN 329 A SER 330 n 326 SER 330 A MET 331 n 327 MET 331 A ARG 332 n 328 ARG 332 A author_defined_assembly 1 monomeric A ASP 60 A OD1 ASP 56 1_555 A FE 333 B FE FE 1_555 A HIS 250 A NE2 HIS 246 1_555 70.3 A ASP 60 A OD1 ASP 56 1_555 A FE 333 B FE FE 1_555 A CO3 334 C O1 CO3 1_555 69.6 A HIS 250 A NE2 HIS 246 1_555 A FE 333 B FE FE 1_555 A CO3 334 C O1 CO3 1_555 71.7 A ASP 60 A OD1 ASP 56 1_555 A FE 333 B FE FE 1_555 A CO3 334 C O2 CO3 1_555 89.1 A HIS 250 A NE2 HIS 246 1_555 A FE 333 B FE FE 1_555 A CO3 334 C O2 CO3 1_555 135.2 A CO3 334 C O1 CO3 1_555 A FE 333 B FE FE 1_555 A CO3 334 C O2 CO3 1_555 63.8 A ASP 60 A OD1 ASP 56 1_555 A FE 333 B FE FE 1_555 A TYR 92 A OH TYR 88 1_555 85.4 A HIS 250 A NE2 HIS 246 1_555 A FE 333 B FE FE 1_555 A TYR 92 A OH TYR 88 1_555 84.6 A CO3 334 C O1 CO3 1_555 A FE 333 B FE FE 1_555 A TYR 92 A OH TYR 88 1_555 149.9 A CO3 334 C O2 CO3 1_555 A FE 333 B FE FE 1_555 A TYR 92 A OH TYR 88 1_555 134.4 A ASP 60 A OD1 ASP 56 1_555 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 147.0 A HIS 250 A NE2 HIS 246 1_555 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 79.7 A CO3 334 C O1 CO3 1_555 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 88.5 A CO3 334 C O2 CO3 1_555 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 103.4 A TYR 92 A OH TYR 88 1_555 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 105.6 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 1 3.23 0.50 120.30 123.53 A A A NE CZ NH1 ARG ARG ARG 8 8 8 N 1 -6.63 0.90 118.30 111.67 A A A CB CG OD1 ASP ASP ASP 25 25 25 N 1 6.70 0.90 118.30 125.00 A A A CB CG OD1 ASP ASP ASP 60 60 60 N 1 -6.94 0.90 118.30 111.36 A A A CB CG OD2 ASP ASP ASP 60 60 60 N 1 -3.80 0.50 120.30 116.50 A A A NE CZ NH2 ARG ARG ARG 121 121 121 N 1 -6.51 0.90 118.30 111.79 A A A CB CG OD2 ASP ASP ASP 177 177 177 N 1 6.89 0.90 118.30 125.19 A A A CB CG OD1 ASP ASP ASP 200 200 200 N 1 -5.98 0.90 118.30 112.32 A A A CB CG OD2 ASP ASP ASP 200 200 200 N 1 -6.15 0.90 118.30 112.15 A A A CB CG OD1 ASP ASP ASP 204 204 204 N 1 -5.67 0.90 118.30 112.63 A A A CB CG OD1 ASP ASP ASP 219 219 219 N 1 5.72 0.90 118.30 124.02 A A A CB CG OD2 ASP ASP ASP 219 219 219 N 1 3.04 0.50 120.30 123.34 A A A NE CZ NH1 ARG ARG ARG 255 255 255 N 1 5.53 0.90 118.30 123.83 A A A CB CG OD1 ASP ASP ASP 262 262 262 N 1 -5.51 0.90 118.30 112.79 A A A CB CG OD2 ASP ASP ASP 262 262 262 N 1 -7.33 0.90 118.30 110.97 A A A CB CG OD1 ASP ASP ASP 277 277 277 N 1 6.07 0.90 118.30 124.37 A A A CB CG OD2 ASP ASP ASP 277 277 277 N 1 5.84 0.90 118.30 124.14 A A A CB CG OD1 ASP ASP ASP 292 292 292 N 1 -5.73 0.90 118.30 112.57 A A A CB CG OD2 ASP ASP ASP 292 292 292 N 1 -8.85 0.90 118.30 109.45 A A A CB CG OD1 ASP ASP ASP 297 297 297 N 1 6.95 0.90 118.30 125.25 A A A CB CG OD2 ASP ASP ASP 297 297 297 N 1 6.76 0.90 118.30 125.06 A A A CB CG OD1 ASP ASP ASP 315 315 315 N 1 -6.59 0.90 118.30 111.71 A A A CB CG OD2 ASP ASP ASP 315 315 315 N 1 A A CD OE1 GLU GLU 80 80 -0.067 0.011 1.252 1.185 N 1 A A CD OE1 GLU GLU 86 86 0.071 0.011 1.252 1.323 N 1 A A CD OE2 GLU GLU 103 103 0.080 0.011 1.252 1.332 N 1 A A CD OE2 GLU GLU 139 139 0.073 0.011 1.252 1.325 N 1 A A CD OE2 GLU GLU 141 141 0.069 0.011 1.252 1.321 N 1 A A CD OE2 GLU GLU 144 144 0.106 0.011 1.252 1.358 N 1 A A CD OE1 GLU GLU 149 149 0.075 0.011 1.252 1.327 N 1 A A CD OE2 GLU GLU 261 261 0.084 0.011 1.252 1.336 N 1 A A CD OE1 GLU GLU 323 323 0.080 0.011 1.252 1.332 N 1 A LEU 26 -88.43 33.85 1 A THR 27 -140.23 -13.56 1 A GLN 28 -57.47 -0.13 1 A THR 35 163.43 134.50 1 A GLU 86 -79.73 43.19 1 A THR 90 -94.79 32.91 1 A THR 102 -51.06 85.71 1 A PHE 104 156.51 134.80 1 A TRP 125 -155.28 -68.93 1 A GLU 144 -69.67 6.70 1 A SER 145 -167.25 86.49 1 A SER 232 -57.74 178.31 1 A ALA 245 171.62 163.40 1 A ASP 257 -128.33 -164.24 1 A VAL 260 -49.09 -16.91 1 A LYS 290 -54.13 109.00 1 A PRO 293 -32.67 -33.75 1 A LEU 299 68.55 -54.05 1 A SER 330 -57.94 -6.11 0.16 0.16 2.3 1 2.3 108 2646 5 0 2533 0.015 2.25 model building X-PLOR refinement TNT refinement X-PLOR phasing X-PLOR OVOTRANSFERRIN (MONOFERRIC N-TERMINAL HALF-MOLECULE) STRUCTURAL EVIDENCE FOR A PH-SENSITIVE DI-LYSINE TRIGGER IN THE HEN OVOTRANSFERRIN N-LOBE: IMPLICATIONS FOR TRANSFERRIN IRON RELEASE 1 N N 2 N N 3 N N 4 N N A SER 14 A SER 10 HELX_P A GLN 28 A GLN 24 1 1 15 A THR 41 A THR 37 HELX_P A GLU 53 A GLU 49 1 2 13 A ASP 60 A ASP 56 HELX_P A LEU 69 A LEU 65 1 3 10 A THR 105 A THR 101 HELX_P A GLN 110 A GLN 106 1 4 6 A ARG 121 A ARG 117 HELX_P A ARG 135 A ARG 131 1 5 15 A SER 147 A SER 143 HELX_P A PHE 156 A PHE 152 1 6 10 A GLU 167 A GLU 163 HELX_P A CYS 174 A CYS 170 1 6A 8 A GLY 190 A GLY 186 HELX_P A GLY 201 A GLY 197 1 7 12 A HIS 210 A HIS 206 HELX_P A ALA 217 A ALA 213 1 8 8 A PRO 218 A PRO 214 HELX_P A GLU 223 A GLU 219 1 8A 6 A ASP 257 A ASP 253 HELX_P A GLY 275 A GLY 271 1 9 19 A ASP 315 A ASP 311 HELX_P A GLY 321 A GLY 317 1 10 7 A GLY 321 A GLY 317 HELX_P A ARG 332 A ARG 328 1 11 12 disulf 2.037 A CYS 10 A SG CYS 6 1_555 A CYS 45 A SG CYS 41 1_555 disulf 1.975 A CYS 20 A SG CYS 16 1_555 A CYS 36 A SG CYS 32 1_555 disulf 2.100 A CYS 115 A SG CYS 111 1_555 A CYS 197 A SG CYS 193 1_555 disulf 2.045 A CYS 160 A SG CYS 156 1_555 A CYS 174 A SG CYS 170 1_555 disulf 2.022 A CYS 171 A SG CYS 167 1_555 A CYS 182 A SG CYS 178 1_555 disulf 1.979 A CYS 228 A SG CYS 224 1_555 A CYS 242 A SG CYS 238 1_555 metalc 1.914 A FE 333 B FE FE 1_555 A ASP 60 A OD1 ASP 56 1_555 metalc 2.261 A FE 333 B FE FE 1_555 A HIS 250 A NE2 HIS 246 1_555 metalc 2.095 A FE 333 B FE FE 1_555 A CO3 334 C O1 CO3 1_555 metalc 2.270 A FE 333 B FE FE 1_555 A CO3 334 C O2 CO3 1_555 metalc 2.013 A FE 333 B FE FE 1_555 A TYR 92 A OH TYR 88 1_555 metalc 1.774 A FE 333 B FE FE 1_555 A TYR 191 A OH TYR 187 1_555 IRON TRANSPORT PROTEIN IRON TRANSPORT PROTEIN A ALA 70 A ALA 66 1 A PRO 71 A PRO 67 6.92 A GLY 286 A GLY 282 1 A PRO 287 A PRO 283 1.55 TRFE_CHICK UNP 1 1 P02789 MKLILCTVLSLGIAAVCFAAPPKSVIRWCTISSPEEKKCNNLRDLTQQERISLTCVQKATYLDCIKAIANNEADAISLDG GQAFEAGLAPYKLKPIAAEVYEHTEGSTTSYYAVAVVKKGTEFTVNDLQGKTSCHTGLGRSAGWNIPIGTLLHRGAIEWE GIESGSVEQAVAKFFSASCVPGATIEQKLCRQCKGDPKTKCARNAPYSGYSGAFHCLKDGKGDVAFVKHTTVNENAPDQK DEYELLCLDGSRQPVDNYKTCNWARVAAHAVVARDDNKVEDIWSFLSKAQSDFGVDTKSDFHLFGPPGKKDPVLKDLLFK DSAIMLKRVPSLMDSQLYLGFEYYSAIQSMRKDQLTPSPRENRIQWCAVGKDEKSKCDRWSVVSNGDVECTVVDETKDCI IKIMKGEADAVALDGGLVYTAGVCGLVPVMAERYDDESQCSKTDERPASYFAVAVARKDSNVNWNNLKGKKSCHTAVGRT AGWVIPMGLIHNRTGTCNFDEYFSEGCAPGSPPNSRLCQLCQGSGGIPPEKCVASSHEKYFGYTGALRCLVEKGDVAFIQ HSTVEENTGGKNKADWAKNLQMDDFELLCTDGRRANVMDYRECNLAEVPTHAVVVRPEKANKIRDLLERQEKRFGVNGSE KSKFMMFESQNKDLLFKDLTKCLFKVREGTTYKEFLGDKFYTVISSLKTCNPSDILQMCSFLEGK 24 351 1NNT 5 332 P02789 A 1 1 328 11 parallel parallel parallel parallel parallel parallel parallel parallel parallel parallel A SER 5 A SER 1 A THR 11 A THR 7 A ILE 32 A ILE 28 A LYS 39 A LYS 35 A ALA 54 A ALA 50 A LEU 59 A LEU 55 A LEU 74 A LEU 70 A TYR 82 A TYR 78 A SER 91 A SER 87 A LYS 100 A LYS 96 A LYS 112 A LYS 108 A HIS 116 A HIS 112 A ALA 158 A ALA 154 A VAL 161 A VAL 157 A VAL 205 A VAL 201 A LYS 209 A LYS 205 A TYR 224 A TYR 220 A CYS 228 A CYS 224 A ALA 245 A ALA 241 A ARG 255 A ARG 251 A MET 306 A MET 302 A PRO 311 A PRO 307 BINDING SITE FOR RESIDUE FE A 333 Software 5 BINDING SITE FOR RESIDUE CO3 A 334 Software 7 A ASP 60 A ASP 56 5 1_555 A TYR 92 A TYR 88 5 1_555 A TYR 191 A TYR 187 5 1_555 A HIS 250 A HIS 246 5 1_555 A CO3 334 C CO3 5 1_555 A ASP 60 A ASP 56 7 1_555 A THR 117 A THR 113 7 1_555 A ARG 121 A ARG 117 7 1_555 A ALA 123 A ALA 119 7 1_555 A TYR 191 A TYR 187 7 1_555 A HIS 250 A HIS 246 7 1_555 A FE 333 B FE 7 1_555 19 P 21 21 21