What role do virus's outer coat play in the invasion of a host cell?

Answer 1

Viral host cell- the cell have become infected with virus.

Attachment of virus to a host cell is a specific binding between viral capsid proteins and specific receptors on the host cellular surface. For example, human HIV virus infects only T-cells, because its surface protein(gp 120) can interact with CD4 and receptors on the T-cell surface.

---- The virus invasion

Phase 1

The spikes and fibers attach themselves to the walls of the cell or bacteria.

Phase 2

The sheath contracts and drives the core through the cell wall, like an injection!

Phase 3

The nucleic acid passes through the core, from the head, and into the host cell. Phase 4

First the nucleic acid disappears, then about ten minutes later 100's of virions appear out of no where, causing the cell to rupture, releasing hundreds of copies of the virus that originally invaded it. This cycle is then repeated and can destroy billions of cells in a matter of hours!

Answer 2

The virus tries to match the recognition glycoprotein on the outside of the cell it is trying to invade, for docking purposes, or for entry purposes. Generally the membrane that covers this type of virus was taken from a cell it lysed on exit.

What_role_do_the_proteins_in_a_virus's_outer_coat_play_in_the_invasion_of_a_hosts_cell

Answer 3

I dont know tell a nerd : ) <- bad answer but a really good thing to do but dont be rude asking. Heres the real answer :The protein coats have enzymes that attach to many different types of host cells. hope my answers right. :]

Answer 4

A protein coat protects the virus and inner core made of genetic material. It has specially shaped proteins that allow the virus to "dock" onto the host cell. The specially shaped protein on the outer layer of the virus is like a key, and when the key finds a lock, the host cell lets the virus come in and then, the virus, uses the cell to reproduce.

Answer 5

Surface proteins on viruses are complementary to receptors on the cell membrane of certain host cells. Take HIV as an example: it has surface molecules that bind specifically to the CD4 receptor on the plasma membrane of white blood cells. This binding of virus and host cell facilitates entry of the virus into the cytoplasm. The specificity of viruses for certain tissues is called "tropism". Ebola virus is a nasty so-and-so, because it has surface molecules that bind to many cell types, hence it affects several tissues within the body.

Answer 6

The surface proteins allow the virus to "dock" with their host cells.

Answer 7

The enzyme present in the core of tails of the virus digest the cell wall of the host cell followed by making holes on host cells surface.