8CXP

Characterisation of a Seneca Valley Virus Thermostable Mutant

これはPDB形式変換不可エントリーです。

8CXP の概要

• エントリーDOI: 10.2210/pdb8cxp/pdb
• EMDBエントリー: 27066
• 分子名称: Capsid protein VP1, Capsid protein VP3, VP2, ... (4 entities in total)
• 機能のキーワード: virus, picornavirus, svv, seneca valley virus, oncolytic virus
• 由来する生物種: Senecavirus A; 詳細
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 94696.85

構造登録者

Jayawardena, N.,Bostina, M.,Strauss, M. (登録日: 2022-05-22, 公開日: 2022-09-28, 最終更新日: 2024-06-12)

主引用文献

Jayawardena, N.,McCarthy, C.,Wang, I.,Waqqar, S.,Burga, L.N.,Strauss, M.,Bostina, M.
Characterisation of a Seneca Valley virus thermostable mutant.
Virology, 575:74-82, 2022

PubMed Abstract: Seneca Valley virus (SVV) is a newly discovered picornavirus in the Senecavirus genus. SVV-001 strain has shown promise as an oncolytic virus against tumors with neuroendocrine features. There is a need to use a structure-based approach to develop virus-like particles capable to mimicking the architecture of naturally occurring empty capsids that can be used as vaccines or as carriers for targeted cancer treatment. However, these empty capsids are inherently less stable, and tedious to purify. This warrants investigation into factors which confer the SVV capsid stability and into combining this knowledge to recombinantly express stable SVV VLPs. In this study, we isolated a thermostable mutant of SVV by thermal selection assays and we characterized a single mutation located in a capsid protein. The cryo-EM map of this mutant showed conformational shifts that facilitated the formation of additional hydrogen bonds and aromatic interactions, which could serve as capsid stabilizing factors.

PubMed: 36084546
DOI: 10.1016/j.virol.2022.08.015

実験手法

ELECTRON MICROSCOPY (2.47 Å)