0.014064 -0.000000 0.000000 0.000000 0.012529 0.000000 0.000000 0.000000 0.023180 0.00000 0.00000 0.00000 Pazy, Y. Kulik, T. Bayer, E.A. Wilchek, M. Livnah, O. http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic 8 90.00 90.00 90.00 71.103 79.813 43.140 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 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 C8 H15 N O6 221.208 2-acetamido-2-deoxy-beta-D-glucopyranose D-saccharide, beta 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 C9 H14 N2 O3 S 230.284 NORBIOTIN 4-(2-OXO-HEXAHYDRO-THIENO[3,4-D]IMIDAZOL-4-YL)-BUTYRIC ACID non-polymer 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 J.Biol.Chem. JBCHA3 0071 0021-9258 277 30892 30900 10.1074/jbc.M202874200 12055191 Ligand exchange between proteins: exchange of biotin and biotin derivatives between avidin and streptavidin 2002 NAG A 151 HAS WRONG CHIRALITY AT ATOM C1 NAG B 352 HAS WRONG CHIRALITY AT ATOM C1 1.000000 0.000000 0.000000 0.000000 1.000000 0.000000 0.000000 0.000000 1.000000 0.00000 0.00000 0.00000 295 1 IMAGE PLATE 2001-12-10 RIGAKU RAXIS IV++ max flux optics SINGLE WAVELENGTH M x-ray 1 1.5418 1.0 1.5418 ROTATING ANODE RIGAKU RUH3R 14350.081 avidin 2 nat polymer 221.208 2-acetamido-2-deoxy-beta-D-glucopyranose 2 syn non-polymer 230.284 NORBIOTIN 2 syn non-polymer 18.015 water 107 nat water no no ARKCSLTGKWTNDLGSNMTIGAVNSRGEFTGTYTTAVTATSNEIKESPLHGTENTINKRTQPTFGFTVNWKFSESTTVFT GQCFIDRNGKEVLKTMWLLRSSVNDIGDDWKATRVGINIFTRLRTQKE ARKCSLTGKWTNDLGSNMTIGAVNSRGEFTGTYTTAVTATSNEIKESPLHGTENTINKRTQPTFGFTVNWKFSESTTVFT GQCFIDRNGKEVLKTMWLLRSSVNDIGDDWKATRVGINIFTRLRTQKE 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 chicken Gallus sample 9031 Gallus gallus egg white 1 2.13 42.31 VAPOR DIFFUSION, HANGING DROP 5.8 12% PEG 1000, 0.1 immidazole malate, pH 5.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K 293 atom_site chem_comp database_PDB_caveat entity pdbx_chem_comp_identifier pdbx_entity_nonpoly pdbx_nonpoly_scheme pdbx_validate_chiral struct_conn struct_ref_seq_dif struct_site struct_site_gen repository Initial release Carbohydrate remediation repository Remediation Version format compliance Derived calculations Version format compliance Advisory Atomic model Data collection Database references Derived calculations Non-polymer description Structure summary 1 0 2002-11-06 1 1 2008-04-28 1 2 2011-07-13 2 0 2020-07-29 _atom_site.B_iso_or_equiv _atom_site.Cartn_x _atom_site.Cartn_y _atom_site.Cartn_z _atom_site.auth_atom_id _atom_site.auth_comp_id _atom_site.label_atom_id _atom_site.label_comp_id _atom_site.type_symbol _chem_comp.id _chem_comp.name _chem_comp.type _entity.pdbx_description _pdbx_entity_nonpoly.comp_id _pdbx_entity_nonpoly.name _pdbx_nonpoly_scheme.mon_id _pdbx_nonpoly_scheme.pdb_mon_id _struct_conn.pdbx_leaving_atom_flag _struct_conn.pdbx_role _struct_conn.ptnr2_auth_comp_id _struct_conn.ptnr2_label_comp_id _struct_ref_seq_dif.details DGlcpNAcb N-acetyl-b-D-glucopyranosamine b-D-GlcpNAc GlcNAc streptavidin-norbiotin complex streptavidin-homobiotin complex streptavidin-BCAP complex avidin-homobiotin complex avidin BCAP complex RCSB Y RCSB 2002-04-09 REL NAG 2-acetamido-2-deoxy-beta-D-glucopyranose SNR NORBIOTIN HOH water NAG 401 2 NAG NAG 151 A SNR 150 3 SNR SNR 150 A NAG 402 2 NAG NAG 352 B SNR 350 3 SNR SNR 350 B WAT 402 4 HOH HOH 402 A WAT 404 4 HOH HOH 404 A WAT 405 4 HOH HOH 405 A WAT 409 4 HOH HOH 409 A WAT 410 4 HOH HOH 410 A WAT 411 4 HOH HOH 411 A WAT 414 4 HOH HOH 414 A WAT 416 4 HOH HOH 416 A WAT 417 4 HOH HOH 417 A WAT 420 4 HOH HOH 420 A WAT 424 4 HOH HOH 424 A WAT 425 4 HOH HOH 425 A WAT 426 4 HOH HOH 426 A WAT 430 4 HOH HOH 430 A WAT 434 4 HOH HOH 434 A WAT 435 4 HOH HOH 435 A WAT 436 4 HOH HOH 436 A WAT 437 4 HOH HOH 437 A WAT 438 4 HOH HOH 438 A WAT 440 4 HOH HOH 440 A WAT 441 4 HOH HOH 441 A WAT 442 4 HOH HOH 442 A WAT 445 4 HOH HOH 445 A WAT 446 4 HOH HOH 446 A WAT 447 4 HOH HOH 447 A WAT 457 4 HOH HOH 457 A WAT 459 4 HOH HOH 459 A WAT 462 4 HOH HOH 462 A WAT 464 4 HOH HOH 464 A WAT 465 4 HOH HOH 465 A WAT 466 4 HOH HOH 466 A WAT 467 4 HOH HOH 467 A WAT 468 4 HOH HOH 468 A WAT 470 4 HOH HOH 470 A WAT 472 4 HOH HOH 472 A WAT 473 4 HOH HOH 473 A WAT 475 4 HOH HOH 475 A WAT 476 4 HOH HOH 476 A WAT 481 4 HOH HOH 481 A WAT 482 4 HOH HOH 482 A WAT 484 4 HOH HOH 484 A WAT 485 4 HOH HOH 485 A WAT 490 4 HOH HOH 490 A WAT 492 4 HOH HOH 492 A WAT 497 4 HOH HOH 497 A WAT 500 4 HOH HOH 500 A WAT 505 4 HOH HOH 505 A WAT 401 4 HOH HOH 401 B WAT 403 4 HOH HOH 403 B WAT 406 4 HOH HOH 406 B WAT 407 4 HOH HOH 407 B WAT 408 4 HOH HOH 408 B WAT 412 4 HOH HOH 412 B WAT 413 4 HOH HOH 413 B WAT 415 4 HOH HOH 415 B WAT 418 4 HOH HOH 418 B WAT 419 4 HOH HOH 419 B WAT 421 4 HOH HOH 421 B WAT 422 4 HOH HOH 422 B WAT 423 4 HOH HOH 423 B WAT 427 4 HOH HOH 427 B WAT 428 4 HOH HOH 428 B WAT 429 4 HOH HOH 429 B WAT 431 4 HOH HOH 431 B WAT 432 4 HOH HOH 432 B WAT 433 4 HOH HOH 433 B WAT 439 4 HOH HOH 439 B WAT 443 4 HOH HOH 443 B WAT 444 4 HOH HOH 444 B WAT 448 4 HOH HOH 448 B WAT 449 4 HOH HOH 449 B WAT 450 4 HOH HOH 450 B WAT 451 4 HOH HOH 451 B WAT 452 4 HOH HOH 452 B WAT 453 4 HOH HOH 453 B WAT 454 4 HOH HOH 454 B WAT 455 4 HOH HOH 455 B WAT 456 4 HOH HOH 456 B WAT 458 4 HOH HOH 458 B WAT 460 4 HOH HOH 460 B WAT 461 4 HOH HOH 461 B WAT 463 4 HOH HOH 463 B WAT 469 4 HOH HOH 469 B WAT 471 4 HOH HOH 471 B WAT 474 4 HOH HOH 474 B WAT 477 4 HOH HOH 477 B WAT 478 4 HOH HOH 478 B WAT 479 4 HOH HOH 479 B WAT 480 4 HOH HOH 480 B WAT 483 4 HOH HOH 483 B WAT 486 4 HOH HOH 486 B WAT 487 4 HOH HOH 487 B WAT 488 4 HOH HOH 488 B WAT 489 4 HOH HOH 489 B WAT 491 4 HOH HOH 491 B WAT 493 4 HOH HOH 493 B WAT 494 4 HOH HOH 494 B WAT 495 4 HOH HOH 495 B WAT 496 4 HOH HOH 496 B WAT 498 4 HOH HOH 498 B WAT 499 4 HOH HOH 499 B WAT 501 4 HOH HOH 501 B WAT 502 4 HOH HOH 502 B WAT 503 4 HOH HOH 503 B WAT 504 4 HOH HOH 504 B WAT 506 4 HOH HOH 506 B WAT 507 4 HOH HOH 507 B n 1 1 A n 2 2 A LYS 3 n 3 LYS 3 A CYS 4 n 4 CYS 4 A SER 5 n 5 SER 5 A LEU 6 n 6 LEU 6 A THR 7 n 7 THR 7 A GLY 8 n 8 GLY 8 A LYS 9 n 9 LYS 9 A TRP 10 n 10 TRP 10 A THR 11 n 11 THR 11 A ASN 12 n 12 ASN 12 A ASP 13 n 13 ASP 13 A LEU 14 n 14 LEU 14 A GLY 15 n 15 GLY 15 A SER 16 n 16 SER 16 A ASN 17 n 17 ASN 17 A MET 18 n 18 MET 18 A THR 19 n 19 THR 19 A ILE 20 n 20 ILE 20 A GLY 21 n 21 GLY 21 A ALA 22 n 22 ALA 22 A VAL 23 n 23 VAL 23 A ASN 24 n 24 ASN 24 A SER 25 n 25 SER 25 A ARG 26 n 26 ARG 26 A GLY 27 n 27 GLY 27 A GLU 28 n 28 GLU 28 A PHE 29 n 29 PHE 29 A THR 30 n 30 THR 30 A GLY 31 n 31 GLY 31 A THR 32 n 32 THR 32 A TYR 33 n 33 TYR 33 A THR 34 n 34 THR 34 A THR 35 n 35 THR 35 A ALA 36 n 36 ALA 36 A VAL 37 n 37 VAL 37 A THR 38 n 38 THR 38 A ALA 39 n 39 ALA 39 A THR 40 n 40 THR 40 A SER 41 n 41 SER 41 A ASN 42 n 42 ASN 42 A GLU 43 n 43 GLU 43 A ILE 44 n 44 ILE 44 A LYS 45 n 45 LYS 45 A GLU 46 n 46 GLU 46 A SER 47 n 47 SER 47 A PRO 48 n 48 PRO 48 A LEU 49 n 49 LEU 49 A HIS 50 n 50 HIS 50 A GLY 51 n 51 GLY 51 A THR 52 n 52 THR 52 A GLU 53 n 53 GLU 53 A ASN 54 n 54 ASN 54 A THR 55 n 55 THR 55 A ILE 56 n 56 ILE 56 A ASN 57 n 57 ASN 57 A LYS 58 n 58 LYS 58 A ARG 59 n 59 ARG 59 A THR 60 n 60 THR 60 A GLN 61 n 61 GLN 61 A PRO 62 n 62 PRO 62 A THR 63 n 63 THR 63 A PHE 64 n 64 PHE 64 A GLY 65 n 65 GLY 65 A PHE 66 n 66 PHE 66 A THR 67 n 67 THR 67 A VAL 68 n 68 VAL 68 A ASN 69 n 69 ASN 69 A TRP 70 n 70 TRP 70 A LYS 71 n 71 LYS 71 A PHE 72 n 72 PHE 72 A SER 73 n 73 SER 73 A GLU 74 n 74 GLU 74 A SER 75 n 75 SER 75 A THR 76 n 76 THR 76 A THR 77 n 77 THR 77 A VAL 78 n 78 VAL 78 A PHE 79 n 79 PHE 79 A THR 80 n 80 THR 80 A GLY 81 n 81 GLY 81 A GLN 82 n 82 GLN 82 A CYS 83 n 83 CYS 83 A PHE 84 n 84 PHE 84 A ILE 85 n 85 ILE 85 A ASP 86 n 86 ASP 86 A ARG 87 n 87 ARG 87 A ASN 88 n 88 ASN 88 A GLY 89 n 89 GLY 89 A LYS 90 n 90 LYS 90 A GLU 91 n 91 GLU 91 A VAL 92 n 92 VAL 92 A LEU 93 n 93 LEU 93 A LYS 94 n 94 LYS 94 A THR 95 n 95 THR 95 A MET 96 n 96 MET 96 A TRP 97 n 97 TRP 97 A LEU 98 n 98 LEU 98 A LEU 99 n 99 LEU 99 A ARG 100 n 100 ARG 100 A SER 101 n 101 SER 101 A SER 102 n 102 SER 102 A VAL 103 n 103 VAL 103 A ASN 104 n 104 ASN 104 A ASP 105 n 105 ASP 105 A ILE 106 n 106 ILE 106 A GLY 107 n 107 GLY 107 A ASP 108 n 108 ASP 108 A ASP 109 n 109 ASP 109 A TRP 110 n 110 TRP 110 A LYS 111 n 111 LYS 111 A ALA 112 n 112 ALA 112 A THR 113 n 113 THR 113 A ARG 114 n 114 ARG 114 A VAL 115 n 115 VAL 115 A GLY 116 n 116 GLY 116 A ILE 117 n 117 ILE 117 A ASN 118 n 118 ASN 118 A ILE 119 n 119 ILE 119 A PHE 120 n 120 PHE 120 A THR 121 n 121 THR 121 A ARG 122 n 122 ARG 122 A LEU 123 n 123 LEU 123 A n 124 124 A n 125 125 A n 126 126 A n 127 127 A n 128 128 A n 1 201 B n 2 202 B LYS 203 n 3 LYS 203 B CYS 204 n 4 CYS 204 B SER 205 n 5 SER 205 B LEU 206 n 6 LEU 206 B THR 207 n 7 THR 207 B GLY 208 n 8 GLY 208 B LYS 209 n 9 LYS 209 B TRP 210 n 10 TRP 210 B THR 211 n 11 THR 211 B ASN 212 n 12 ASN 212 B ASP 213 n 13 ASP 213 B LEU 214 n 14 LEU 214 B GLY 215 n 15 GLY 215 B SER 216 n 16 SER 216 B ASN 217 n 17 ASN 217 B MET 218 n 18 MET 218 B THR 219 n 19 THR 219 B ILE 220 n 20 ILE 220 B GLY 221 n 21 GLY 221 B ALA 222 n 22 ALA 222 B VAL 223 n 23 VAL 223 B ASN 224 n 24 ASN 224 B SER 225 n 25 SER 225 B ARG 226 n 26 ARG 226 B GLY 227 n 27 GLY 227 B GLU 228 n 28 GLU 228 B PHE 229 n 29 PHE 229 B THR 230 n 30 THR 230 B GLY 231 n 31 GLY 231 B THR 232 n 32 THR 232 B TYR 233 n 33 TYR 233 B THR 234 n 34 THR 234 B THR 235 n 35 THR 235 B ALA 236 n 36 ALA 236 B VAL 237 n 37 VAL 237 B THR 238 n 38 THR 238 B ALA 239 n 39 ALA 239 B THR 240 n 40 THR 240 B SER 241 n 41 SER 241 B ASN 242 n 42 ASN 242 B GLU 243 n 43 GLU 243 B ILE 244 n 44 ILE 244 B LYS 245 n 45 LYS 245 B GLU 246 n 46 GLU 246 B SER 247 n 47 SER 247 B PRO 248 n 48 PRO 248 B LEU 249 n 49 LEU 249 B HIS 250 n 50 HIS 250 B GLY 251 n 51 GLY 251 B THR 252 n 52 THR 252 B GLU 253 n 53 GLU 253 B ASN 254 n 54 ASN 254 B THR 255 n 55 THR 255 B ILE 256 n 56 ILE 256 B ASN 257 n 57 ASN 257 B LYS 258 n 58 LYS 258 B ARG 259 n 59 ARG 259 B THR 260 n 60 THR 260 B GLN 261 n 61 GLN 261 B PRO 262 n 62 PRO 262 B THR 263 n 63 THR 263 B PHE 264 n 64 PHE 264 B GLY 265 n 65 GLY 265 B PHE 266 n 66 PHE 266 B THR 267 n 67 THR 267 B VAL 268 n 68 VAL 268 B ASN 269 n 69 ASN 269 B TRP 270 n 70 TRP 270 B LYS 271 n 71 LYS 271 B PHE 272 n 72 PHE 272 B SER 273 n 73 SER 273 B GLU 274 n 74 GLU 274 B SER 275 n 75 SER 275 B THR 276 n 76 THR 276 B THR 277 n 77 THR 277 B VAL 278 n 78 VAL 278 B PHE 279 n 79 PHE 279 B THR 280 n 80 THR 280 B GLY 281 n 81 GLY 281 B GLN 282 n 82 GLN 282 B CYS 283 n 83 CYS 283 B PHE 284 n 84 PHE 284 B ILE 285 n 85 ILE 285 B ASP 286 n 86 ASP 286 B ARG 287 n 87 ARG 287 B ASN 288 n 88 ASN 288 B GLY 289 n 89 GLY 289 B LYS 290 n 90 LYS 290 B GLU 291 n 91 GLU 291 B VAL 292 n 92 VAL 292 B LEU 293 n 93 LEU 293 B LYS 294 n 94 LYS 294 B THR 295 n 95 THR 295 B MET 296 n 96 MET 296 B TRP 297 n 97 TRP 297 B LEU 298 n 98 LEU 298 B LEU 299 n 99 LEU 299 B ARG 300 n 100 ARG 300 B SER 301 n 101 SER 301 B SER 302 n 102 SER 302 B VAL 303 n 103 VAL 303 B ASN 304 n 104 ASN 304 B ASP 305 n 105 ASP 305 B ILE 306 n 106 ILE 306 B GLY 307 n 107 GLY 307 B ASP 308 n 108 ASP 308 B ASP 309 n 109 ASP 309 B TRP 310 n 110 TRP 310 B LYS 311 n 111 LYS 311 B ALA 312 n 112 ALA 312 B THR 313 n 113 THR 313 B ARG 314 n 114 ARG 314 B VAL 315 n 115 VAL 315 B GLY 316 n 116 GLY 316 B ILE 317 n 117 ILE 317 B ASN 318 n 118 ASN 318 B ILE 319 n 119 ILE 319 B PHE 320 n 120 PHE 320 B THR 321 n 121 THR 321 B ARG 322 n 122 ARG 322 B LEU 323 n 123 LEU 323 B n 124 324 B n 125 325 B n 126 326 B n 127 327 B n 128 328 B author_and_software_defined_assembly PISA,PQS 4 tetrameric 13540 -55 19210 A ASN 17 GLYCOSYLATION SITE A ASN 17 ASN B ASN 217 GLYCOSYLATION SITE B ASN 17 ASN 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 -1.0000000000 0.0000000000 0.0000000000 0.0000000000 -1.0000000000 0.0000000000 0.0000000000 0.0000000000 1.0000000000 2_565 -x,-y+1,z crystal symmetry operation 0.0000000000 79.8130000000 0.0000000000 A N TRP 10 A N TRP 10 A O MET 18 A O MET 18 A N ASN 17 A N ASN 17 A O THR 34 A O THR 34 A N TYR 33 A N TYR 33 A O SER 47 A O SER 47 A N HIS 50 A N HIS 50 A O THR 67 A O THR 67 A N VAL 68 A N VAL 68 A O THR 77 A O THR 77 A N THR 76 A N THR 76 A O ARG 100 A O ARG 100 A N TRP 97 A N TRP 97 A O GLY 116 A O GLY 116 A O THR 121 A O THR 121 A N THR 11 A N THR 11 B N TRP 210 B N TRP 10 B O MET 218 B O MET 18 B N ASN 217 B N ASN 17 B O THR 234 B O THR 34 B N TYR 233 B N TYR 33 B O SER 247 B O SER 47 B N THR 252 B N THR 52 B O GLY 265 B O GLY 65 B N VAL 268 B N VAL 68 B O THR 277 B O THR 77 B N THR 276 B N THR 76 B O ARG 300 B O ARG 100 B N LEU 299 B N LEU 99 B O ARG 314 B O ARG 114 B O THR 321 B O THR 121 B N THR 211 B N THR 11 1 A ALA 1 A ALA 1 1 Y 1 A ARG 2 A ARG 2 1 Y 1 A ARG 124 A ARG 124 1 Y 1 A THR 125 A THR 125 1 Y 1 A GLN 126 A GLN 126 1 Y 1 A LYS 127 A LYS 127 1 Y 1 A GLU 128 A GLU 128 1 Y 1 B ALA 201 B ALA 1 1 Y 1 B ARG 202 B ARG 2 1 Y 1 B ARG 324 B ARG 124 1 Y 1 B THR 325 B THR 125 1 Y 1 B GLN 326 B GLN 126 1 Y 1 B LYS 327 B LYS 127 1 Y 1 B GLU 328 B GLU 128 1 Y 1 A C1 NAG 151 WRONG HAND 1 B C1 NAG 352 WRONG HAND 1 B B O O ASP HOH 309 401 2.17 1 16.59 2.30 115.30 131.89 A A A CA CB CG LEU LEU LEU 49 49 49 N 1 17.03 2.30 115.30 132.33 B B B CA CB CG LEU LEU LEU 249 249 249 N 1 B LYS 258 38.15 46.93 1 B ARG 259 -48.74 153.69 0.241 0.183 2.2 30.0 622 12323 11701 RANDOM 1 THROUGHOUT 1.0 MOLECULAR REPLACEMENT Engh & Huber 2.2 30.0 107 2057 58 0 1892 2.2 30.0 1LDO 12800 -3.0 0.115 1 97.4 2.2 2.24 1 89.0 data reduction DENZO data scaling SCALEPACK refinement CNS phasing CNS avidin, NORBIOTIN avidin-norbioitn complex 1 N N 1 N N 2 N N 3 N N 2 N N 3 N N 4 N N 4 N N The second part of the biological assembly is generated by the two fold axis -x, -y+1, z A THR 55 A THR 55 HELX_P A ARG 59 A ARG 59 5 1 5 A ASP 105 A ASP 105 HELX_P A LYS 111 A LYS 111 5 2 7 B THR 255 B THR 55 HELX_P B ARG 259 B ARG 59 5 3 5 B ASP 305 B ASP 105 HELX_P B LYS 311 B LYS 111 5 4 7 disulf 2.396 A CYS 4 A SG CYS 4 1_555 A CYS 83 A SG CYS 83 1_555 disulf 2.142 B CYS 204 B SG CYS 4 1_555 B CYS 283 B SG CYS 83 1_555 covale 1.457 one N-Glycosylation A ASN 17 A ND2 ASN 17 1_555 A NAG 151 C C1 NAG 1_555 covale 1.454 one N-Glycosylation B ASN 217 B ND2 ASN 17 1_555 B NAG 352 E C1 NAG 1_555 UNKNOWN FUNCTION avidin, streptavidin, biotin, high affinity systems, ligand exchange, UNKNOWN FUNCTION AVID_CHICK UNP 1 25 P02701 ARKCSLTGKWTNDLGSNMTIGAVNSRGEFTGTYITAVTATSNEIKESPLHGTENTINKRTQPTFGFTVNWKFSESTTVFT GQCFIDRNGKEVLKTMWLLRSSVNDIGDDWKATRVGINIFTRLRTQKE 25 152 1LDO 1 128 P02701 A 1 1 128 25 152 1LDO 201 328 P02701 B 1 1 128 1 ILE conflict THR 34 1LDO A P02701 UNP 58 34 2 ILE conflict THR 234 1LDO B P02701 UNP 58 34 9 9 anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel anti-parallel A GLY 8 A GLY 8 A ASN 12 A ASN 12 A ASN 17 A ASN 17 A ILE 20 A ILE 20 A GLU 28 A GLU 28 A THR 34 A THR 34 A SER 47 A SER 47 A GLU 53 A GLU 53 A THR 63 A THR 63 A ASN 69 A ASN 69 A THR 76 A THR 76 A ILE 85 A ILE 85 A GLU 91 A GLU 91 A ARG 100 A ARG 100 A THR 113 A THR 113 A ARG 122 A ARG 122 A GLY 8 A GLY 8 A ASN 12 A ASN 12 B GLY 208 B GLY 8 B ASN 212 B ASN 12 B ASN 217 B ASN 17 B ILE 220 B ILE 20 B GLU 228 B GLU 28 B THR 234 B THR 34 B SER 247 B SER 47 B GLU 253 B GLU 53 B THR 263 B THR 63 B ASN 269 B ASN 69 B THR 276 B THR 76 B ILE 285 B ILE 85 B GLU 291 B GLU 91 B ARG 300 B ARG 100 B THR 313 B THR 113 B ARG 322 B ARG 122 B GLY 208 B GLY 8 B ASN 212 B ASN 12 18 P 21 21 2