Virus Assembly. Final Stages of Infection Cycle. Assembly Exit from cell. Assembly initiates when threshold quantities of progeny virus genomes and structural proteins have accumulated in the infected cell Nucleocapsid no envelope. Nucleocapsid with lipid envelope.
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Assembly initiates when threshold quantities of progeny virus genomes and structural proteins have accumulated in the infected cell
Icosahedral - construction of an empty protein shell known as a procapsid, or a prohead in the case of a tailed bacteriophage. The procapsid is filled with a copy of the virus genome.
Budding of virions involves interaction between the cytoplasmic tail of a virus glycoprotein in the membrane and another virus protein.
The release of influenza virus particles from cells requires the activity of a virion enzyme: a neuraminidase