The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains two tandem Src homology-2 domains, which function as phospho-tyrosine binding domains and mediate the interaction of this PTP with its substrates. This PTP is widely expressed in most tissues and plays a regulatory role in various cell signaling events that are important for a diversity of cell functions, such as mitogenic activation, metabolic control, transcription regulation, and cell migration. Mutations in this gene are a cause of Noonan syndrome as well as acute myeloid leukemia. Two transcript variants encoding different isoforms have been found for this gene.,BPTP3,CFC,JMML,METCDS,NS1,PTP-1D,PTP2C,SH-PTP2,SH-PTP3,SHP2,PTPN11,Signal Transduction,Kinase,Tyrosine kinases,ErbB-HER Signaling Pathway,Cell Biology & Developmental Biology,Endocrine & Metabolism,Insulin Receptor Signaling Pathway,Immunology & Inflammation,B Cell Receptor Signaling Pathway,IL-6 Receptor Signaling Pathway,Neuroscience,PTPN11