Anti-TRIM21 antibody produced in rabbit

Tripartite motif containing 21 (TRIM21) belongs to the TRIM family of proteins which function as anti-retroviral restriction factors and are E3 ubiquitin-protein ligases.

52 kDa Ro protein recombinant protein epitope signature tag (PrEST)

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

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. We also provide Prestige Antibodies^® protocols and other useful information.

Tripartite motif containing 21 (TRIM21) is involved in regulation of IgG functions and has a role in innate immunity. It binds specifically to the Fc region of human IgG isotypes 1, 2 and 4 with a conformation dependent interaction. The minimal binding epitope is the C-terminal B30.2 domain. TRIM21 forms a trimer that competes with protein A for binding to IgG Fc and binds to the consensus CH2/CH3 domain interface in the Fc region, overlapping the binding site of several other proteins, like protein A and protein G. It has been shown that it interacts with interferon regulatory factor 3 (IRF3) upon RNA virus infection. TRIM21 interferes with the interaction between Pin1 (peptidyl-prolyl cis/trans isomerase, NIMA-interacting 1) and IRF3, thus preventing IRF3 ubiquitination and degradation.

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.

Corresponding Antigen APREST70028

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

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