Abstract:
:The E2 glycoprotein of classical swine fever virus (CSFV) is involved in viral infection and induction of neutralizing antibodies. Little is known about how E2 interacts with host cells. To understand the cellular factors involved in viral replication cycle, E2 was used as bait in yeast two-hybrid screens, resulting in the identification of β-actin as a potential E2-interacting partner. E2-β-actin interaction was confirmed by co-immunoprecipitation, GST pulldown, laser confocal and bimolecular fluorescence complementation assays. The E2-interacting domain of β-actin was mapped to amino acids (aa) 95-188 and two β-actin-interacting regions were identified in E2 (aa 182-261 and aa 262-341). Knockdown of β-actin by RNA interference and disruption of filamentous β-actin with cytochalasin D at 4h post-infection caused a significant reduction of viral RNA copies and titers. Collectively, the results indicated that β-actin is involved in the early replication of CSFV.
journal_name
Virus Resjournal_title
Virus researchauthors
He F,Ling L,Liao Y,Li S,Han W,Zhao B,Sun Y,Qiu HJdoi
10.1016/j.virusres.2013.10.016subject
Has Abstractpub_date
2014-01-22 00:00:00pages
161-8eissn
0168-1702issn
1872-7492pii
S0168-1702(13)00363-8journal_volume
179pub_type
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