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-Structure paper
| タイトル | A VLP vaccine platform comprising the core protein of hepatitis B virus with N-terminal antigen capture. |
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| ジャーナル・号・ページ | Int J Biol Macromol, Vol. 305, Issue Pt 2, Page 141152, Year 2025 |
| 掲載日 | 2025年2月15日 |
著者 | Kaniz Fatema / Joseph S Snowden / Alexander Watson / Lee Sherry / Neil A Ranson / Nicola J Stonehouse / David J Rowlands / ![]() |
| PubMed 要旨 | Nanoparticle presentation systems offer the potential to develop new vaccines rapidly in response to emerging diseases, a public health need that has become increasingly evident in the wake of the ...Nanoparticle presentation systems offer the potential to develop new vaccines rapidly in response to emerging diseases, a public health need that has become increasingly evident in the wake of the COVID-19 pandemic. Previously, we reported a nanoparticle scaffold system termed VelcroVax. This was constructed by insertion of a high affinity SUMO binding protein (Affimer), able to recognise a SUMO peptide tag, into the major immunodominant region of VLPs assembled from a tandem (fused dimer) form of hepatitis B virus (HBV) core protein (HBc). Here we describe an alternative form, termed N-VelcroVax, a VLP vaccine platform assembled from a monomeric HBc protein (N-anti-SUMO Affimer HBc 190) with the Affimer inserted at the N-terminus. In contrast to the tandem form of VelcroVax, N-VelcroVax VLPs were expressed well in E. coli. The VLPs effectively bound SUMO-tagged Junín virus glycoprotein, gp1 as assessed by structural and serological analyses. Cryo-EM characterisation of N-VelcroVax complexed with a SUMO-Junín gp1 showed continuous density attributable to the fused Affimer, in addition to evidence of target antigen capture. Collectively, these data suggest that N-VelcroVax has potential as a versatile next generation vaccine scaffold. |
リンク | Int J Biol Macromol / PubMed:39961558 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.0 - 3.5 Å |
| 構造データ | EMDB-50832, PDB-9fwe: EMDB-50833, PDB-9fwf: ![]() EMDB-50834: N-VelcroVax HBcAg in complex with SUMO-gp1 (T=3 VLP) ![]() EMDB-50835: N-VelcroVax HBcAg in complex with SUMO-gp1 (T=4 VLP) |
| 由来 |
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キーワード | VIRUS LIKE PARTICLE / velcrovax / hepatitis b virus / hepatitis b core antigen / affimer / vaccine / recombinant / vlp / antigen display |
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