- EMDB-0173: Complex of foot-and-mouth-disease virus (type O1 M) with the Fab ... -
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基本情報
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データベース: EMDB / ID: EMD-0173
タイトル
Complex of foot-and-mouth-disease virus (type O1 M) with the Fab of antibody D9. The virus is at 3.5 Ang resolution, the Fab is flexibly attached and at much lower resolution.
マップデータ
試料
ウイルス: Foot-and-mouth disease virus in complex with D9 FAB
複合体: Foot-and-mouth disease virus口蹄疫ウイルス
複合体: D9 FAB
生物種
Foot-and-mouth disease virus (口蹄疫ウイルス) / Homo sapiens (ヒト)
ジャーナル: PLoS One / 年: 2018 タイトル: Generation and characterisation of recombinant FMDV antibodies: Applications for advancing diagnostic and laboratory assays. 著者: Gareth Shimmon / Abhay Kotecha / Jingshan Ren / Amin S Asfor / Joseph Newman / Stephen Berryman / Eleanor M Cottam / Sarah Gold / Toby J Tuthill / Donald P King / Emiliana Brocchi / Andrew M ...著者: Gareth Shimmon / Abhay Kotecha / Jingshan Ren / Amin S Asfor / Joseph Newman / Stephen Berryman / Eleanor M Cottam / Sarah Gold / Toby J Tuthill / Donald P King / Emiliana Brocchi / Andrew M Q King / Ray Owens / Elizabeth E Fry / David I Stuart / Alison Burman / Terry Jackson / 要旨: Foot-and-mouth disease (FMD) affects economically important livestock and is one of the most contagious viral diseases. The most commonly used FMD diagnostic assay is a sandwich ELISA. However, the ...Foot-and-mouth disease (FMD) affects economically important livestock and is one of the most contagious viral diseases. The most commonly used FMD diagnostic assay is a sandwich ELISA. However, the main disadvantage of this ELISA is that it requires anti-FMD virus (FMDV) serotype-specific antibodies raised in small animals. This problem can be, in part, overcome by using anti-FMDV monoclonal antibodies (MAbs) as detecting reagents. However, the long-term use of MAbs may be problematic and they may need to be replaced. Here we have constructed chimeric antibodies (mouse/rabbit D9) and Fabs (fragment antigen-binding) (mouse/cattle D9) using the Fv (fragment variable) regions of a mouse MAb, D9 (MAb D9), which recognises type O FMDV. The mouse/rabbit D9 chimeric antibody retained the FMDV serotype-specificity of MAb D9 and performed well in a FMDV detection ELISA as well as in routine laboratory assays. Cryo-electron microscopy analysis confirmed engagement with antigenic site 1 and peptide competition studies identified the aspartic acid at residue VP1 147 as a novel component of the D9 epitope. This chimeric expression approach is a simple but effective way to preserve valuable FMDV antibodies, and has the potential for unlimited generation of antibodies and antibody fragments in recombinant systems with the concomitant positive impacts on the 3Rs (Replacement, Reduction and Refinement) principles.