Class I MHC proteins

Question

Quizplus · Accepted Answer

Class I MHC proteins are important self-identifying labels that are found on almost all nucleated cells in the body. They allow the immune system to distinguish between self and non-self cells and are essential for the activation of CD8+ T cells.

Note: Option B is incorrect because Class I MHC proteins are not involved in protecting a developing fetus from its mother's immune system. Instead, this role is played by a different set of proteins known as HLA-G. Option A is partially correct as Class I MHC proteins are primarily found on immune system cells but also on other cells. Option C is incorrect as Class I MHC proteins are found on almost all nucleated cells, not only those derived from bone marrow. Option E is incorrect as Class I MHC proteins are highly diverse among individuals, allowing for recognition of foreign antigens.

Class I MHC Proteins