Penetration - host cell DNA and become Latent. DNA or...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Penetration : The virus enters the cell. This can occur by different mechanisms. For example, the virus can be taken in by a process like phagocytosis. Or the virus can inject its DNA into the cell while leaving the capsid outside. Or the membrane (enveloped virus) can fuse with the membrane of the cell and slip in. Uncoating: Once inside the virus sheds its outer protein coat to release its genetic material and enzymes. This can happen by phagocytosis or by a breakup of the capsid. Nucleic acid then can begin to suppress normal cell processes to begin its reproductive activity. DNA viruses may enter the nucleus for replication. RNA viruses generally stay in the cytoplasm. Some DNA viruses and Retroviruses combine with
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: host cell DNA and become Latent. DNA or retroviruses may have longer effects on the infected cell than a Lytic virus. Although we are seeing some persistent infectious effects with what were previously thought of as Lytic viruses. Protein Synthesis, Replication : The virus genetic material replicates to many copies of itself and synthesizes the proteins of its capsid and also any virus derived enzymes it carries. These components "Self Assemble" as a result of their conformation and charge distribution. Release : The cell bursts in lytic viruses---T phage and polio---or simply sheds virus as in HIV. The cell generally dies regardless of the process of release....
View Full Document

This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

Ask a homework question - tutors are online