PTPRT (Protein Tyrosine Phosphatase, Receptor Type T): PTPRT is a gene that encodes a protein belonging to the protein tyrosine phosphatase family, which is essential for cell signaling. It contributes to regulating cellular processes such as cell growth and differentiation. Mutations in PTPRT have been associated with several cancers, especially colorectal cancer, due to its role in signaling pathways that control cell proliferation.