The structure of FIPV spike glycoprotein. Determined by electron microscopy at 2.78 Å resolution. Released 28 Jan 2026.
Explore 9UE3 in 3D Show helices and sheets RCSB PDB PDBe
9UE3 contains 27 α-helices and 75 β-strands across 1 chain. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.
| Element | Residues | Length | Sheet |
|---|---|---|---|
| α-helix | 44-46 | 3 | |
| β-strand | 54 | 1 | 1 |
| β-strand | 58 | 1 | 2 |
| β-strand | 207 | 1 | 3 |
| β-strand | 213 | 1 | 3 |
| β-strand | 236 | 1 | 2 |
| β-strand | 240 | 1 | 1 |
| β-strand | 249 | 1 | 1 |
| α-helix | 255-258 | 4 | |
| β-strand | 270 | 1 | 4 |
| β-strand | 272 | 1 | 4 |
| β-strand | 287 | 1 | 5 |
| β-strand | 294-299 | 6 | 6 |
| β-strand | 304-311 | 8 | 5 |
| α-helix | 312 | 1 | |
| β-strand | 316-322 | 7 | 7 |
| β-strand | 342-346 | 5 | 5 |
| β-strand | 354-355 | 2 | 7 |
| β-strand | 360-366 | 7 | 7 |
| β-strand | 371-377 | 7 | 7 |
| β-strand | 402-406 | 5 | 7 |
| β-strand | 411-417 | 7 | 7 |
| β-strand | 425-428 | 4 | 5 |
| β-strand | 432-435 | 4 | 5 |
| β-strand | 438-442 | 5 | 5 |
| β-strand | 446-454 | 9 | 7 |
| α-helix | 456-458 | 3 | |
| β-strand | 462-468 | 7 | 5 |
| β-strand | 472-477 | 6 | 6 |
| β-strand | 480-486 | 7 | 6 |
| α-helix | 490-498 | 9 | |
| α-helix | 503-504 | 2 | |
| β-strand | 506-511 | 6 | 8 |
| β-strand | 520-523 | 4 | 9 |
| β-strand | 531-544 | 14 | 10 |
| β-strand | 550-552 | 3 | 10 |
| β-strand | 557-559 | 3 | 10 |
| β-strand | 563 | 1 | 11 |
| β-strand | 566 | 1 | 11 |
| β-strand | 570-571 | 2 | 10 |
| β-strand | 576-587 | 12 | 10 |
| β-strand | 597 | 1 | 10 |
| α-helix | 598 | 1 | |
| β-strand | 605-609 | 5 | 10 |
| β-strand | 625-632 | 8 | 10 |
| β-strand | 640-647 | 8 | 10 |
| β-strand | 652-670 | 19 | 10 |
| β-strand | 690-694 | 5 | 9 |
| β-strand | 697-701 | 5 | 9 |
| β-strand | 702-706 | 5 | 12 |
| β-strand | 715-717 | 3 | 12 |
| β-strand | 723-727 | 5 | 12 |
| β-strand | 734-738 | 5 | 12 |
| β-strand | 743-749 | 7 | 8 |
| β-strand | 752-758 | 7 | 8 |
| β-strand | 764 | 1 | 13 |
| β-strand | 767 | 1 | 13 |
| β-strand | 769-772 | 4 | 8 |
| β-strand | 777-780 | 4 | 8 |
| β-strand | 803-807 | 5 | 14 |
| β-strand | 810-813 | 4 | 14 |
| β-strand | 818-820 | 3 | 14 |
| α-helix | 821-825 | 5 | |
| β-strand | 837-841 | 5 | 15 |
| β-strand | 844-854 | 11 | 16 |
| β-strand | 860-862 | 3 | 17 |
| α-helix | 864-867 | 4 | |
| α-helix | 873-879 | 7 | |
| α-helix | 883-907 | 25 | |
| α-helix | 912-917 | 6 | |
| α-helix | 920-923 | 4 | |
| β-strand | 929 | 1 | 18 |
| α-helix | 931-933 | 3 | |
| α-helix | 944-950 | 7 | |
| β-strand | 953 | 1 | 19 |
| β-strand | 961 | 1 | 19 |
| α-helix | 963-970 | 8 | |
| α-helix | 996-1001 | 6 | |
| β-strand | 1005-1007 | 3 | 17 |
| α-helix | 1011-1027 | 17 | |
| β-strand | 1030 | 1 | 18 |
| β-strand | 1039 | 1 | 18 |
| α-helix | 1042-1053 | 12 | |
| α-helix | 1064-1081 | 18 | |
| α-helix | 1094-1112 | 19 | |
| α-helix | 1115-1122 | 8 | |
| α-helix | 1123-1125 | 3 | |
| α-helix | 1135-1141 | 7 | |
| α-helix | 1144-1186 | 43 | |
| α-helix | 1187-1191 | 5 | |
| β-strand | 1205-1214 | 10 | 16 |
| β-strand | 1217-1227 | 11 | 16 |
| β-strand | 1230-1234 | 5 | 15 |
| β-strand | 1235-1236 | 2 | 20 |
| β-strand | 1239-1242 | 4 | 21 |
| β-strand | 1247-1252 | 6 | 21 |
| β-strand | 1257-1261 | 5 | 20 |
| β-strand | 1267-1271 | 5 | 20 |
| β-strand | 1278-1279 | 2 | 20 |
| α-helix | 1282-1284 | 3 | |
| β-strand | 1285-1288 | 4 | 21 |
| β-strand | 1296-1299 | 4 | 21 |
| Molecule | Chains | Type | Length | Organism | UniProt |
|---|---|---|---|---|---|
| Spike glycoprotein,Fibritin | A | protein | 1451 | Feline infectious peritonitis virus (strain 79-1146), Enterobacteria phage T6 | A0A346FJN8, P10033 |
>9UE3_1 Spike glycoprotein,Fibritin (chains A) TTNNECIQVNVTQLAGNENLIRDFLFSNFKEEGSNVVGGYYPTEVWYNCSRTARTTAFQY FNNIHAFYFVMEAMENSTGNARGKPLLFHVHGEPVSVIISAYRDDVQQRPLLKHGLVCIT KNRHINYEQFTSNQWNSTCTGADRKIPFSVIPTDNGTKIYGLEWNDDFVTAYISGRSYHL NINTNWFNNVTLLYSRSSTATWEYSAAYAYQGVSNFTYYKLNNTNGLKTYELCEDYEHCT GYATNVFAPTSGGYIPDGFSFNNWFLLTNSSTFVSGRFVTNQPLLINCLWPVPSFGVAAQ EFCFEGAQFSQCNGVSLNNTVDVIRFNLNFTADVQSGMGATVFSLNTTGGVILEISCYSD TVSESSSYSYGEIPFGITDGPIYCYVLYNGTALKYLGTLPPSVKEIAISKWGHFYINGYN FFSTFPIGCISFNLTTGVSGAFWTIAYTSYTEALVQVENTAIKNVTYCNSHINNIKCSQL TANLNNGFYPVASSEVGFVNKSVVLLPSFFTYTAVNITIDLGMKLSGYGQPIASTLSNIT LPMQDNNTDVYCIRSNQFSVYVHSTCKSSLWDNIFNQDCTDVLEATAVIKTGTCPFSFDK LNNYLTFNKFCLSLSPVGANCKFDVAARTRTNEQVVRSLYVIYEEGDNIVGVPSDNSGLH DLSVLHLDSCTDYNIYGRTGVGIIRRTNSTLLSGLYYTSLSGDLLGFKNVSDGVIYSVTP CDVSVQAAVIDGAIVGAMTSINSELLGLTHWTTTPNFYYYSIYNYTSERTRGTAIDSNDV DCEPVITYSNIGVCKNGALVFINVTHSDGDVQPISTGNVTIPTNFTISVQVEYMQVYTTP VSIDCARYVCNGNPRCNKLLTQYVSACQTIEQALAMGARLENMEVDSMLFVSENALKLAS VEAFNSTENLDPIYKEWPSIGGSWLGGLKDILPSHNSKRKYGSAIEDLLFDKVVTSGLGT VDEDYKRCTGGYDIADLVCAQYYNGIMVLPGVANADKMTMYTASLAGGITLGALGGGAVA IPFAVAVQARLNYVALQTDVLNKNQQILANAFNQAIGNITQAFGKVNDAIHQTSQGLATV AKALAKVQDVVNTQGQALSHLTVQLQNNFQAISSSISDIYNRLDPPSADAQVDRLITGRL TALNAFVSQTLTRQAEVRASRQLAKDKVNECVRSQSQRFGFCGNGTHLFSLANAAPNGMI FFHTVLLPTAYETVTAWSGICASDGDRTFGLVVKDVQLTLFRNLDDKFYLTPRTMYQPRV ATSSDFVQIEGCDVLFVNATVIDLPSIIPDYIDINQTVQDILENYEPNWTVPEFTLDIFN ATYLNLTGEIDDLEFRSEKLHNTTVELAILIDNINNTLVNLEWLNRIETYVKGGGSGGGS GYIPEAPRDGQAYVRKDGEWVLLSTFLGSGGGSAWSHPQFEKGGGSGGGSGGSSAWSHPQ FEKHHHHHHHH
| ID | Name | Formula | Copies |
|---|---|---|---|
| NAG | 2-acetamido-2-deoxy-beta-D-glucopyranose | C8 H15 N O6 | 15 |
Structure and receptor recognition of type-II feline infectious peritonitis virus spike glycoprotein. Niu, S., Tian, Y., Nguyen, L. et al. EMBO J (2026) 45:5537-5555. DOI 10.1038/s44318-026-00849-2 · PubMed
Other PDB entries of the same protein (UniProt A0A346FJN8), best resolution first:
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