Claim: ICAM3 is an intercellular adhesion molecule that functions as both an adhesion and a potent signaling molecule.
Evidence: Intercellular adhesion molecule 3 (ICAM3) also known as CD50 (Cluster of Differentiation 50), is a protein that in humans is encoded by the ICAM3 gene. It functions not only as an adhesion molecule, but also as a potent signalling molecule.