Protein tyrosine phosphatase, receptor type, C also known as PTPRC is an enzyme that, in humans, is encoded by the PTPRCgene.[5] PTPRC is also known as CD45antigen (CD stands for cluster of differentiation), which was originally called leukocyte common antigen (LCA).[6]
PTPRC is a critical enzyme involved in regulating immune cell function. PTPRC is a transmembrane protein tyrosine phosphatase expressed on the surface of all nucleated hematopoietic cells, particularly lymphocytes. It plays a key role in the activation and differentiation of T cells, B cells, and other immune cells by modulating signaling pathways. It functions by dephosphorylating specific tyrosine residues on target proteins, thereby controlling various signaling processes essential for immune response and homeostasis.[7][8]