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Analysis Note

ControlHeLa cell lysate.B10

Application

Immunocytochemistry Analysis: A 1:500 dilution from a representative lot detected Replication Protein A in HeLa and A431 cells.

Immunohistochemistry Analysis: A 1:5 dilution from a representative lot detected Replication Protein A in human colorectal adenocarcinoma tissues.

Use Anti-Replication Protein A Antibody, clone RPA34-20 (mouse monoclonal antibody) validated in WB, ICC, IHC to detect Replication Protein A also known as Replication protein A 32 kDa subunit, RP-A p32.

Research CategoryEpigenetics & Nuclear Function

Research Sub CategoryCell Cycle, DNA Replication & Repair

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

General description

RPA (RP-A p32) is a heterotrimeric protein complex that binds specifically to single-stranded DNA (ssDNA). It is composed of three subunits: RPA1 (70 kDa), RPA2 (32 kDa), and RPA3 (14 kDa). RPA plays multiple roles in DNA replication. At the onset of DNA replication, RPA is loaded onto chromatin, and is needed for subsequent loading of DNA polymerase and other replication proteins to initiate DNA replication. After replication begins, RPA moves with replication forks, stabilizing ssDNA and assisting in DNA synthesis. In addition to its replication function, RPA is also known to play essential roles in damage repair and recombination. The 32 kDa subunit is phosphorylated by the cdc2 family of kinases when cells enter S-phase; and by ATM, ATR, and DNA-PK proteins in response to DNA damage.

Immunogen

Replication Protein A purified from U293 cells

Linkage

Replaces: NA19L

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Physical form

Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Protein G Purified

Format: Purified

Quality

Evaluated by Western Blot in HeLa cell lysate.

Western Blot Analysis: 1 µg/mL of this antibody detected Replication Protein A in 10 µg of HeLa cell lysate.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Target description

~30 kDa observed. Uniprot describes three isoforms at ~29 kDa, ~30 kDa, and ~39 kDa