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Explain what happens when the antigen binds with t cell receptor?

1 doctor weighed in
Dr. Brant Ward
Internal Medicine - Allergy & Immunology

In brief: T cell activation

In most cases, antigen must be "shown" to the t cell receptor along with a protein called mhc.
If the cell with the antigen/mhc also has the proper co-stimulatory proteins, the t cell is activated (like needing 2 keys to fire a missle). If the extra proteins are not present, the t cell may cease to function. If the t cell was already activated, it can produce chemicals and/or kill the other cell.

In brief: T cell activation

In most cases, antigen must be "shown" to the t cell receptor along with a protein called mhc.
If the cell with the antigen/mhc also has the proper co-stimulatory proteins, the t cell is activated (like needing 2 keys to fire a missle). If the extra proteins are not present, the t cell may cease to function. If the t cell was already activated, it can produce chemicals and/or kill the other cell.
Dr. Brant Ward
Dr. Brant Ward
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