Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/12740
Título: | Nuclear export of African swine fever virus p37 protein occurs through two distinct pathways and is mediated by three independent signals | Autor: | Eulálio, Ana Nunes-Correia, Isabel Carvalho, Ana Luísa Faro, Carlos Citovsky, Vitaly Salas, José Salas, Maria L. Simões, Sérgio Lima, Maria C. Pedroso de |
Data: | Fev-2006 | Editora: | American Society for Microbiology | Citação: | Journal of Virology. 80:3 (2004) 1393-1404 | Resumo: | Nucleocytoplasmic shuttling activity of the African swine fever virus p37 protein, a major structural protein of this highly complex virus, has been recently reported. The systematic characterization of the nuclear export ability of this protein constituted the major purpose of the present study. We report that both the N- and C-terminal regions of p37 protein are actively exported from the nucleus to the cytoplasm of yeast and mammalian cells. Moreover, experiments using leptomycin B and small interfering RNAs targeting the CRM1 receptor have demonstrated that the export of p37 protein is mediated by both the CRM1-dependent and CRM1-independent nuclear export pathways. Two signals responsible for the CRM1-mediated nuclear export of p37 protein were identified at the N terminus of the protein, and an additional signal was identified at the C-terminal region, which mediates the CRM1-independent nuclear export. Interestingly, site-directed mutagenesis revealed that hydrophobic amino acids are critical to the function of these three nuclear export signals. Overall, our results demonstrate that two distinct pathways contribute to the strong nuclear export of full-length p37 protein, which is mediated by three independent nuclear export signals. The existence of overlapping nuclear export mechanisms, together with our observation that p37 protein is localized in the nucleus at early stages of infection and exclusively in the cytoplasm at later stages, suggests that the nuclear transport ability of this protein may be critical to the African swine fever virus replication cycle | URI: | https://hdl.handle.net/10316/12740 | ISSN: | 0022-538X | DOI: | 10.1128/jvi.80.3.1393-1404.2006 | Direitos: | openAccess |
Aparece nas coleções: | FFUC- Artigos em Revistas Internacionais FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Nuclear export of African swine fever virus p37 protein.pdf | 598.22 kB | Adobe PDF | Ver/Abrir |
Citações WEB OF SCIENCETM
16
Visto em 2/ago/2022
Visualizações de página
318
Visto em 23/abr/2024
Downloads
202
Visto em 23/abr/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.