Human Cd99 Antigen, CD99 ELI

Involved in T-cell adhesion processes and in spontaneous rosette formation with erythrocytes.

Plays a role in a late step of leukocyte extravasation helping leukocytes to overcome the endothelial basement membrane.

Acts at the same site as, but independently of, PECAM1.

Involved in T-cell adhesion processes (By similarity).