Description_x000D_ General description_x000D_ Praja ring finger ubiquitin ligase 2 (PJA2) is a RING (really interesting new gene) ligase, encoded by the gene mapped to human chromosome 5q21.3. The encoded protein is a member of the growing family of mammalian RING E3-ubiquitin ligases. PJA2 is widely expressed in variety of cells and tissues, including brain._x000D_ Immunogen_x000D_ praja ring finger 2 recombinant protein epitope signature tag (PrEST)_x000D_ Application_x000D_ All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry._x000D_ The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige._x000D_ Physical form_x000D_ Solution in phosphate buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide._x000D_ Legal Information_x000D_ Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC_x000D_ Biochem/physiol Actions_x000D_ Praja ring finger ubiquitin ligase 2 (PJA2) degrades the regulatory subunits of protein kinase A (PKA) and maintains the strength and duration of PKA signaling in response to cAMP. Elevated expression of PJA2 is observed in differentiated thyroid cancer and high-grade glioma. PJA2 binds and ubiquitylates Mps one binder 1 (MOB1), an essential component of the Hippo pathway. Degradation of MOB1 by PJA2 inhibits hippo signaling cascade and favors glioblastoma multiform (GBM) growth._x000D_ Features and Benefits_x000D_ Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section._x000D_ Every Prestige Antibody is tested in the following ways:_x000D_ • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues._x000D_ • Protein array of 364 human recombinant protein fragments._x000D_ • Validated for multiple commonly used applications such as IHC (Immunohistochemistry), IF (Immunofluorescence), and WB (Western Blot)_x000D_ Linkage_x000D_ Corresponding Antigen APREST80143.