Plakophilin 2 (Pkp2) is an armadillo-repeat protein of the cardiac desmosome. The armadillo-repeat proteins contain ten 42–amino acid armadillo-repeat motifs. They are localized to the outer dense plaque of desmosomes and are involved in the bridging of desmosomal cadherins with desmoplakin and the intermediate filament system. Plakophilins are nuclear proteins that regulate transcription. Pkp2 interacts with several cell adhesion proteins and has two alternatively spliced isoforms (2a and 2b). The gene is mapped to human chromosome 12p11.
Plakophilin-2 recombinant protein epitope signature tag (PrEST)
Anti-PKP2 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige.
The gene PKP2 (plakophilin 2) encodes a desmosomal protein that belongs to the plakophilin family of proteins that are involved in desmosome formation and function. Desmosomal proteins participate in cell signaling. In mouse, Pkp2 is expressed mainly in the cardiac muscle and plays an important role in the heart development. Any mutation in this gene causes defects of heart morphogenesis and junctional architecture with embryonic lethality at midgestation. Mutations in this gene are also associated with arrhythmogenic right ventricular cardiomyopathy.
Features and Benefits
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.
Every Prestige Antibody is tested in the following ways:
- IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
- Protein array of 364 human recombinant protein fragments.
Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide
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