RPA 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), and plays multiple roles in DNA metabolism. RPA is required for DNA replication initiation, as well as replication elongation. At the onset of DNA replication, RPA is loaded onto chromatin after the binding of Cdc45 to origins. RPA is needed for subsequent loading of DNA polymerase and other replication proteins to initiate DNA replication. After DNA 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 in response to DNA damage by ATM, ATR, and DNA-PK. Alternate names for RPA32 include replication protein A 32 kDa subunit, RP-A, RF-A, replication factor-A protein 2, p32, p34, RPA2, REPA2, and RPA32.
This antibody recognizes RPA2.
His-tagged recombinant protein corresponding to human RPA2.
Research Sub Category
Cell Cycle, DNA Replication & Repair
Anti-RPA2 p34 Antibody, clone RPA20 1-46 is a Mouse Monoclonal Antibody for detection of RPA2 p34 also known as Replication factor A protein 2 & has been validated in WB.
Western Blot (SNAP ID) Analysis: 0.5 µg/mL from a previous lot detected RPA2 on 10 µg of NIH/3T3 cell lysate.
Epigenetics & Nuclear Function
Evaluated by Western Blot in HeLa cell lysate.
Western Blot Analysis: 0.5 µg/mL of this antibody detected RPA2 on 10 µg of HeLa cell lysate.
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
Storage and Stability
Stable for 1 year at 2-8°C from date of receipt.
HeLa cell lysate
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
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