CD4 and CD8 Are

Question

CD4 and CD8 are
A)proteins secreted by antigen-presenting cells.
B)receptors present on the surface of natural killer (NK)cells.
C)T-independent antigens.
D)molecules present on the surface of T cells where they interact with MHC molecules.
E)molecules on the surface of antigen-presenting cells where they enhance B cell activity.

Accepted Answer

CD4 and CD8 are molecules present on the surface of T cells, where they interact with MHC molecules. CD4 interacts with MHC class II molecules, while CD8 interacts with MHC class I molecules. These interactions are important for T cell activation and responses to specific antigenic stimuli.