Anti-PTPN13 Antibody Picoband®

Tyrosine-protein phosphatase non-receptor type 13 is an enzyme that in humans is encoded by the PTPN13 gene. The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP is a large intracellular protein. It has a catalytic PTP domain at its C-terminus and two major structural domains: a region with five PDZ domains and a FERM domain that binds to plasma membrane and cytoskeletal elements. This PTP was found to interact with, and dephosphorylate, Fas receptor and IkappaBalpha through the PDZ domains. This suggests it has a role in Fas mediated programmed cell death. This PTP was also shown to interact with GTPase-activating protein, and thus may function as a regulator of Rho signaling pathways. Four alternatively spliced transcript variants, which encode distinct proteins, have been reported.

Fatty acid-binding protein, liver; Fatty acid-binding protein 1; Liver-type fatty acid-binding protein; L-FABP; Squalene- and sterol-carrier protein; SCP; Z-protein; p14; Fabp1

Expressed in lung cancers, including adenocarcinoma, squamous cell carcinoma and small-cell carcinoma. Widely expressed. Expressed in fetal kidney, liver, lung and brain. In adult highest expression in heart and placenta.

Fatty Acid Oxidation, Fatty Acids, Lipid and Lipoprotein Metabolism, Lipid Metabolism, Metabolic Signaling Pathways, Metabolism, Pathways and Processes, Redox Metabolism, Signal Transduction

Plays a role in lipoprotein-mediated cholesterol uptake in hepatocytes (By similarity) . Binds cholesterol (PubMed:25732850) . Binds free fatty acids and their coenzyme A derivatives, bilirubin, and some other small molecules in the cytoplasm. May be involved in intracellular lipid transport (By similarity) .

1. Banville, D., Ahmad, S., Stocco, R., Shen, S.-H. A novel protein-tyrosine phosphatase with homology to both the cytoskeletal proteins of the band 4.1 family and junction-associated guanylate kinases. J. Biol. Chem. 269: 22320-22327, 1994. Note: Erratum: J. Biol. Chem. 270: 10359 only, 1995. 2. Huang, W., Zhu, C., Wang, H., Horvath, E., Eklund, E. A. The interferon consensus sequence-binding protein (ICSBP/IRF8) represses PTPN13 gene transcription in differentiating myeloid cells. J. Biol. Chem. 283: 7921-7935, 2008. 3. Inazawa, J., Ariyama, T., Abe, T., Druck, T., Ohta, M., Huebner, K., Yanagisawa, J., Reed, J. C., Sato, T. PTPN13, a Fas-associated protein tyrosine phosphatase, is located on the long arm of chromosome 4 at band q21.3. Genomics 31: 240-242, 1996.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.