TWiV 409: A Nef is enough

Jeremy joins the TWiVeroids to tell the amazing story of how the function of the HIV-1 protein called Nef was discovered and found to promote infection by excluding the host protein SERINC from virus particles. You can find TWiV #409 at, or listen below. [powerpress url=”″] Click arrow to play Download TWiV 409 (75 MB .mp3, 124 min) …

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Influenza virus attachment to cells

We’ve briefly considered the structure of influenza virions and how the viral RNAs can encode one or more proteins. Now we’ll consider how influenza viruses multiply. Viruses are obligate intracellular parasites: they cannot reproduce outside of a cell. The production of new infectious particles must take place within a cell. Upon entering cells, viruses parasitize …

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