Best answer: What are host receptors?

What is host receptor for virus?

Cell surface protein used by a virus as an attachment and entry receptor. In some cases, binding to a cellular receptor is not sufficient for infection: an additional cell surface molecule, or co-receptor, is required for entry.

What do the receptors do on a virus?

As far as the virus is concerned, the role of its receptor in infection is to provide a point of attachment to a target cell and a signal that it is in an appropriate place to initiate the events leading to fusion with the cell membrane and entry of the virion components into a cell.

What is a viral receptor?

A virus receptor can be defined as a host cell surface component recognized by the virus as a gateway to entry into the cell.

Where are host cell receptors located?

They are found in the cytoplasm of a cell and are often targeted by hydrophobic ligands that can cross the lipid bilayer of the animal plasma cell membrane. Often these receptors act to modify mRNA synthesis and thus protein synthesis within the cell.

What is the purpose of the host cell?

Definition of host cell. : a living cell invaded by or capable of being invaded by an infectious agent (such as a bacterium or a virus) This drug integrates with the virus in a way that prevents it from attaching to host cells, and prevents viral replication of cells already infected.

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What is a fully formed virus called?

Structure and Function

A complete virus particle is called a virion. The main function of the virion is to deliver its DNA or RNA genome into the host cell so that the genome can be expressed (transcribed and translated) by the host cell.

Which is most important for attachment of a virus to a host cell?

The viral attachment protein can be viewed as the “key” that unlocks host cells by interacting with the “lock”—the receptor—on the cell surface, and these lock-and-key interactions are critical for viruses to successfully invade host cells.

What type of virus invades bacteria?

A bacteriophage is a type of virus that infects bacteria. In fact, the word “bacteriophage” literally means “bacteria eater,” because bacteriophages destroy their host cells. All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure.

What is a receptor example?

Receptors are groups of specialised cells. They can detect a change in the environment (stimulus ) and produce electrical impulses in response. Sense organs contain groups of receptors that respond to specific stimuli .


Sense organ Stimulus
Nose Chemicals (in the air, for example)
Eye Light
Ear Sound