CD45 is a receptor protein tyrosine phosphatase, also known as Ly5 or leukocyte common antigen. CD45 mainly involves in the initiation of T cell receptor signaling by controlling the activation of the Src family proteintyrosine kinases Lck and Fyn. CD45 deficiency causes in T and Blymphocyte dysfunction in the form of severe combined immune deficiency. It also takes a significant role in autoimmune diseases and cancer as well as in infectious diseases including fungal infections. - Proteine/Peptide
