Poxvirus Assembly
$989,306ZIAFY2010AINIH
National Institute Of Allergy And Infectious Diseases
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Abstract
There are two major types of infectious vaccinia virus particles: mature virions (MVs) and enveloped virions (EVs). The MVs, which consist of a DNA-protein core surrounded by a lipoprotein membrane, are assembled in cytoplasmic viral factories and contain about 80 polypeptides. A subpopulation of MVs is wrapped by modified trans-Golgi or endosomal cisterna containing additional viral membrane proteins, transported along microtubules to the cell periphery, and exits the cell through the plasma membrane. The EVs are essentially MVs with an additional membrane that is disrupted prior to fusion of the MV with the cell during entry.
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