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What must HIV surface protein do to enter a host cell?
The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell.
What property of a virus determines its attachment to a host cell membrane?
The specific viral proteins on the surface of the virus determine its attachment to host cell membrane receptors. These proteins bind to complementary host cell receptors, allowing the virus to attach and enter the host cell.
What can you conclude about the surface proteins of viruses for which effective vaccines exist?
Effective vaccines usually target specific surface proteins of viruses. These surface proteins are often essential for the virus to infect host cells. By targeting these proteins, vaccines can train the immune system to recognize and fight off the virus more effectively.
What interlocks with a molecular shape in a host cell's plasma membrane?
Proteins on the surface of a virus interlock with specific receptor proteins on the host cell's plasma membrane. This interaction is crucial for the virus to gain entry into the host cell and initiate its replication cycle.
How does a virus attatch to a host cell?
A virus attaches to a host cell by recognizing and binding to specific proteins or receptors on the cell surface. This attachment is necessary for the virus to enter the host cell and begin the process of infection.
What does the protein structure of a virus have to do with the attachment to host cells?
The protein structure of a virus typically includes specific proteins on its outer surface that help it attach to receptors on host cells. This attachment is crucial for the virus to gain entry into the host cell, infect it, and replicate. The binding specificity between viral proteins and host cell receptors is a key determinant of the virus's ability to infect specific cell types.
What are Proteins on the surface of viral particles called?
Proteins on the surface of viral particles are called viral glycoproteins or envelope proteins. These proteins play crucial roles in the virus's ability to attach to and enter host cells, as they often interact with specific receptors on the host cell surface. Additionally, they can elicit immune responses, making them important targets for vaccines and antiviral therapies.
Are viruses infection proteins?
Viruses are made up of proteins (capsid) and genetic material. Virus surface protein interact with its host cell receptors for the entry (1st step in infection). Viral particle can infect the host by inserting their genetic material in to the host genome. Host synthetic machinery produce viral proteins.
Which part of a virus determines which host cells it can effect?
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What is the function of the neck of a virus?
The neck of a virus, also known as the neck domain, plays a role in attaching the virus to host cells. It contains specific proteins or structures that interact with receptors on the surface of host cells, facilitating viral entry into the host cell. This attachment process is crucial for initiating viral infection.
What are the spikes and there function in a virus?
Spikes are proteins that are part of the viral capsid/envelope (depending on if the virus is a naked virus or not). It helps with attachment to the host cell. They are derived from their host cell's own proteins (but are not the same as their hosts), and can help in evading the host cell's defenses.
What part of virus allows it to attach to a cell?
The proteins in the capsid allow the virus to attach to the "docking stations" proteins of the host cell.
