Health Dictionary Find a Doctor

CD86

Cluster of Differentiation 86 (also known as CD86 and B7-2) is a protein expressed on antigen-presenting cells that provides costimulatory signals necessary for T cell activation and survival. It is the ligand for two different proteins on the T cell surface: CD28 (for autoregulation and intercellular association) and CTLA-4 (for attenuation of regulation and cellular disassociation). CD86 works in tandem with CD80 to prime T cells.

The CD86 gene encodes a type I membrane protein that is a member of the immunoglobulin superfamily.[1] Alternative splicing results in two transcript variants encoding different isoforms. Additional transcript variants have been described, but their full-length sequences have not been determined.[2]

See also

See also

References

References

  1. Chen C, Gault A, Shen L, Nabavi N (May 1994). “Molecular cloning and expression of early T cell costimulatory molecule-1 and its characterization as B7-2 molecule”. Journal of Immunology. 152 (10): 4929–36. PMID 7513726.
  2. “Entrez Gene: CD86 CD86 molecule”.
External links
Further reading

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

Looking for the patient version?

Back to the patient-friendly article

© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH