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Actin

Pseudorabies virus virions studied, compensatory role of actin defined

Published in Health and Medicine Week, September 19th, 2005

According to recently published research from the United States, actin is a component of the compensation mechanism in pseudorabies virus virions lacking the major tegument protein VP22.

"Despite being a major component of the pseudorabies virus tegument, VP22 is not required for PRV replication, virulence, or neuroinvasion (T. del Rio, et al. J. Virol. 76:774-782, 2002). In the absence of VP22, tegument assembly compensates in a limited fashion with increased incorporation of cellular actin.

"Infection of epithelial cell lines expressing fluorescent actin fusion proteins resulted in the incorporation of filamentous and nonfilamentous actin into...

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