Monoclonal Anti-Proliferating Cell Nuclear Antigen antibody produced in mouse

Description

• General description: Monoclonal Anti-Proliferating Cell Nuclear Antigen (mouse IgG2a isotype) is derived from the PC 10 hybridoma produced by the fusion of mouse myeloma cells and splenocytes from a BALB/c mouse immunized with PCNA-Protein A fusion protein. Proliferating cell nuclear antigen (PCNA, 36 kDa), also known as cyclin, is an auxiliary protein of DNA polymerase. The protein is present in the nucleoplasm of continually cycling cells throughout the cell cycle.
• Specificity: Recognizes the acidic, non-histone, auxiliary protein of DNA polymerase, PCNA, also known as polymerase delta accessory protein. Fixation duration can markedly affect the intensity of PCNA immunoreactivity. However, delay in fixation does not affect the immunoreactivity. Enzymatic treatment destroys staining. In immunocytochemical labeling of acetone-methanol, or methanol-fixed cells, the antibody shows granular staining throughout the nucleus (nucleolus and nucleoplasm). Specific staining is observed in proliferating cell nuclei, particularly in germinal centers, of a wide range of normal and malignant tissues.
• Immunogen: PCNA-Protein A fusion protein
• Application: Monoclonal Anti-Proliferating Cell Nuclear Antigen antibody produced in mouse has been used for immunohistochemistry (IHC) Western blotting (WB).
• Biochem/physiol Actions: PCNA (proliferating cell nuclear antigen) is loaded around the template-primer 3′ ends, which is recognized by the conserved chaperone-like complex RFC (replication factor C), and this mechanism is ATP-dependent. Encircling of the DNA by the PCNA ring ensures firm anchoring of the polymerases to the DNA, and hence, functions as a co-factor for DNA polymerases. Post-translation modifications of this protein at the K164 residue is required for the regulation of DNA damage tolerance (DDT) pathways, pathways that ensure recovery from replication arrest at DNA lesions.
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