ArticleInternational journal of molecular sciences2025
Proteomic Screening for Cellular Targets of the Duck Enteritis Virus Protein VP26 Reveals That the Host Actin-Myosin II Network Regulates the Proliferation of the Virus.
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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7 authors.
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Abstract
Duck enteritis virus (DEV) is responsible for duck viral enteritis, a contagious and lethal disease in waterfowls. The host proteins targeted by DEV are unknown. In this study, we developed a recombinant DEV rVP26-Flag and identified 17 host proteins that interact with VP26 in infected chicken embryo fibroblast cells using co-immunoprecipitation in conjunction with liquid chromatography-tandem mass spectrometry (Co-IP-MS/MS). The 17 potential targets of VP26 proteins include Xirp1, TMOD3, DCN, ATP5PD, AP3M1, MYO5A, MYH10, MYH9 (non-muscle myosin IIA heavy chain), and GSN. Most of these proteins are microfilament or cytoskeletal proteins with functions such as cytoskeletal protein binding, actin filament interaction, microfilament motor activity, and myosin II interaction. Using the Search Tool for the Retrieval of Interacting Genes analysis, we predicted a functional network of microfilament cytoskeletal proteins interacting with VP26. Interaction between DEV VP26 and the carboxyl-terminus domain of MYH9 (1651-1960 aa) was verified via co-localization and Co-IP assays. We also demonstrated that the inhibition of actin polymerization with cytochalasin D and latrunculin A reduced the DEV titer. Furthermore, siRNA-mediated knockdown of MYH9, which has intrinsic ATPase activity, also resulted in a reduced viral titer. A targeted inhibitor of myosin II ATPase, (-)-Blebbistatin, significantly suppressed DEV infection both in vitro and in vivo. These results suggest that the actin-myosin II network plays a crucial role in DEV proliferation, with MYH9 being an important host factor influencing DEV infection.
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