Proteins on the cell surface label the cells as "self", identifying them to the immune cells as belonging to the organism.

Question

Quizplus · Accepted Answer

These proteins, often referred to as major histocompatibility complex (MHC) molecules, play a crucial role in immune system recognition by presenting peptides from within the cell to the immune system. This helps the immune system distinguish between self and non-self, preventing it from attacking the body's own cells while enabling it to recognize and eliminate pathogens or infected cells.

Proteins on the Cell Surface Label the Cells as "Self