Chapter 5 exam 1 Flashcards
1
Q
How is SCID cured?
A
By a bone marrow transplant
2
Q
When TCR binds Ag, signal transduction requires what?
A
CD3 and Zata chain
3
Q
Why are T cells considered to be picky?
A
They have to be presented their antigen on MHC (only proteins)
4
Q
What does MHC1 bind to?
A
CD8
5
Q
What does MHC2 bind to?
A
CD4
6
Q
What do chaperone proteins do?
A
Help load MHC1
7
Q
What do all nucleated cells express?
A
MHC1
8
Q
What are the professional antigen presenting cells?
A
Macrophages, Dendritic cells, and B cells
