T-lymphocyte activation antigen CD86 (CD86)

Receptor involved in the costimulatory signal essential for T-lymphocyte proliferation and interleukin-2 manufacturing, by binding CD28 or CTLA-4. May play a vital role in the early events of T-cell activation and costimulation of naive T-cells, such as deciding between resistance and anergy that is made by T- cells within 24 hours after activation.

Isoform 2 interferes with the formation of CD86 clusters, and thus functions as a negative regulator of T-cell activation. .