2. Antigen Recognition and Processing

Antigen Presentation — Quiz

Test your understanding of antigen presentation with 5 practice questions.

Practice Questions

Question 1

During MHC class II synthesis, which protein binds to the peptide-binding groove to prevent premature peptide loading and directs the complex to endosomal compartments?

Question 2

Within the endoplasmic reticulum peptide-loading complex for MHC I, tapasin functions to:

Question 3

During dendritic cell maturation, which costimulatory molecule is upregulated first and provides the initial 'Signal 2' to naive T cells?

Question 4

A genetic defect preventing β2-microglobulin expression would primarily impair antigen presentation by which MHC class?

Question 5

Which chemokine receptor is upregulated on mature dendritic cells to guide their migration into T cell–rich regions of lymph nodes?