5832 views

Activation of Killer T Cells

Killer T cells are activated when their T cell receptor (TCR) binds to this specific antigen in a complex with the MHC Class I receptor of another cell. Recognition of this MHC:antigen complex is aided by a co-receptor on the T cell, called CD8. The T cell then travels throughout the body in search of cells where the MHC I receptors bear this antigen. When an activated T cell contacts such cells, it releases cytotoxins, such as perforin, which form pores in the target cell's plasma membrane, allowing ions, water and toxins to enter.

You need to login to download this video.
login or signup

Channels: Cell Biology Molecular Biology

Tags: T Cell Killing

Uploaded by: ( Send Message ) on 17-10-2011. Dnatube suggest users to have interest in drug testing, mesothelioma, insurance, medical lawyers.

Duration: 2m 23s

We promote science. You can find science videos on drug testing, mesothelioma, medical insurance and medical lawyers


Dnatube: Sciencific and Medical video site.