Description_x000D_ General description_x000D_ Protein tyrosine phosphatase non-receptor type 2 (PTPN2), also known as T cell protein tyrosine phosphatase (TCPTP), is an intracellular nonreceptor tyrosine-specific phosphatase that is expressed ubiquitously at various stages of mammalian development. PTPN2 exists as two alternatively spliced variants, PTPN2 isoform 1 (p48TC, 48 kDa) that is targeted to the endoplasmic reticulum by a hydrophobic C-terminal region and a shorter PTPN2 isoform 2 (p45TC, 45 kDa) that is targeted to the nucleus._x000D_ Immunogen_x000D_ synthetic peptide corresponding to a sequence located near the C-terminus of human PTPN2, conjugated to KLH. The corresponding sequence is identical in human PTPN2 isoform 2 and highly conserved (single amino acid substitution) in mouse PTPN2._x000D_ Application_x000D_ Anti-PTPN2 antibody produced in rabbit has been used in:_x000D_ • immunoblotting_x000D_ • immunoprecipitation_x000D_ • immunostaining_x000D_ Physical form_x000D_ Solution in 0.01 M phos­phate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Biochem/physiol Actions_x000D_ PTPN2 acts on several cytoplasmic substrates including epidermal growth factor receptor (EGFR), insulin receptor (InsR), Shc, janus kinases (JAKs), and the nuclear substrate signal transducer and activator of transcription 1 (STAT1). PTPN2 has been associated with type 1 diabetes._x000D_ Protein tyrosine phosphatase non-receptor type 2 (PTPN2) is a tyrosine phosphatase that negatively regulates tyrosine kinase and JAK/STAT signaling pathways. PTPN2 inhibits oncogenic JAK1 and thereby functions as a tumor suppressor in T-cell malignancies. Genetic alterations in PTPN2 have been associated with the risk of Crohn′s disease and ulcerative colitis .