Question

Name the vesicles/compartments where MHC class II molecules bind peptides

Answer 1

MHC class II molecules bind peptides in the endosomes or lysosomes.

Step-by-step explanation:

MHC class II molecules play a crucial role in presenting antigens to CD4+ T cells. The peptides that bind to MHC class II molecules are typically derived from extracellular proteins that have been internalized by the cell through processes such as endocytosis.

These proteins are broken down into peptides within endosomes or lysosomes. The MHC class II molecules then bind to these peptides and transport them to the cell surface for presentation to CD4+ T cells.